CN102179664B - Combined plastic forming method of automobile hub and matching forming mold of automobile hub - Google Patents
Combined plastic forming method of automobile hub and matching forming mold of automobile hub Download PDFInfo
- Publication number
- CN102179664B CN102179664B CN 201110024157 CN201110024157A CN102179664B CN 102179664 B CN102179664 B CN 102179664B CN 201110024157 CN201110024157 CN 201110024157 CN 201110024157 A CN201110024157 A CN 201110024157A CN 102179664 B CN102179664 B CN 102179664B
- Authority
- CN
- China
- Prior art keywords
- die
- lobe
- male mould
- shaped
- upper male
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Forging (AREA)
Abstract
The invention discloses a combined plastic forming method of an automobile hub and a matching forming mold of the automobile hub. The method comprises the following steps of: 1, forming the automobile hub by using light-alloy blanks through a set of forming mold at two steps under the condition of constant temperature, wherein the forming mold is provided with a split lower mold, two upper extrusion male molds and two upper bulging male molds, and the upper extrusion male molds and the upper bulging male molds are sequentially matched with the split lower mold; 2, matching the blanks in the mold by using the upper extrusion male molds and the upper bulging male molds during forming; 3, pre-forming a spoke part of the hub and the lower part of a rim by adopting an extrusion process; 4, forming the upper part of the rim into a hollow pipe blank; and 5, matching the upper bulging male molds with the lower mold and forming a pre-formed part formed in the step 1 into the hub through the extrusion process. Equipment disclosed by the invention has a simple structure, the deformation resistance of each-step process is lower, the mold size and the equipment tonnage are effectively reduced, the production efficiency is improved, and the production cost is lowered.
Description
Technical field
The invention belongs to light-alloy plastic forming technology field, particularly the combination forming method of a kind of aluminium alloy or magnesium alloy auto hub or disk-shaped part and supporting shaping dies thereof.
Background technology
Auto industry develops extremely rapid as mainstay of the national economy industry.How to limit energy usage, improve energy utilization rate, reduce discharge amount of exhaust gas, particularly important with people's living environment to preserving the ecological environment.A way the most effective saving oil consumption is to alleviate automotive dead weight, and automotive wheel is as the basic load bearing component of vehicle operating, and its performance quality will directly affect driving safety, energy consumption and the presentation quality of vehicle.
Present automobile disc wheel of light metal alloy mainly is aluminium alloy wheel hub and magnesium alloy hub.The aluminum-alloy wheel wheel hub has light weight, anticorrosion, the characteristics such as thermal conductivity is good, can reduce the temperature in the tire used process, improve its service life, and the forming technology of aluminium alloy is also relatively good, in the Hyundai Motor manufacturing, is just replacing traditional steel wheel and applied widely.The density of magnesium alloy materials is low, specific strength and specific stiffness are all higher, and has higher vibration damping and impact resistance, is fit to very much the service condition of wheel.Adopt magnesium alloy to make hub for vehicle wheel to lightweight, raising fuel efficiency and the minimizing CO of vehicle
2Discharge capacity all significant, be the development trend of car wheel.
The manufacturing process of aluminium alloy or magnesium alloy auto hub mainly is divided into two kinds of cast form and Plastic Forming.Because the mechanical property of cast article is lower, have certain limitation, thereby plastic molding method is mainly adopted in the production of aluminum current alloy or magnesium alloy auto hub.
The patent No. is building mortion and the manufacturing process thereof that the Chinese invention patent specification of ZL200510010214.8 discloses a kind of solid hot extrusion magnesium alloy wheel hub, the method adopts an extrusion molding magnesium alloy hub, operation is few, but thereby its deformation extent causes extrusion pressure large greatly, when hub size is larger, die size is just very large, needs equipment tonnage also very large, causes cost to improve.
The patent No. is that the Chinese invention patent specification of ZL200610012829.9 discloses a kind of labor-saving automobile hub forming method and device, its technical process is that casting ingot-homogenising processing-preform base-backward extrusion-pier squeezes front wheel felloe-enlarging rear rim-finishing procedure, it is in order to reduce plastic force that the method adopts the purpose of multiple working procedure, but its operation is too complicated, backward extrusion wherein, pier squeezes front wheel felloe and enlarging rear rim operation need to be used respectively independently mould, every mold all needs to dispose corresponding operating personnel, so that its equipment investment is more, personnel demand is larger, and be the extruding force that reduces each mould in extruding process, avoid occuring chill crack, need to heater be installed all on every mold and carry out independent heat tracing, cause the power consumption of its a whole set of building mortion larger, use cost increases; Particularly manufacturing of wheel hub need to be pushed respectively and the demoulding through three molds successively, in the demoulding and replacing mold process, can produce distortion because wheel hub is in the hot mastication state, increase the difficulty of following process, production efficiency is lower, causes the cost of Plastic Forming far above casting, and general car also is difficult to bear, only limit at present the small lot batch manufacture of some specific use wheels, as using in racing car and high-grade car.
Summary of the invention
An object of the present invention is: provide a kind of combination plastic molding method of automotive hub, the problem such as the production process that exists with the plastic molding method that solves automotive hub in the prior art is many, production efficiency is low, equipment tonnage is large, die size is large, production cost is high.
For achieving the above object, the technical scheme of the combination plastic molding method of automotive hub of the present invention is: a kind of combination plastic molding method of automotive hub, the method with the light-alloy blank under isothermy, adopt a cover shaping dies to be shaped in two steps, this shaping dies has a box-like counterdie of lobe and reaches and the box-like counterdie of this lobe successively extruding upper male mould and the bulging upper male mould of corresponding matching, be provided with by lobe in the box-like counterdie of described lobe and close die, the die cavity that lower punch and backing-out punch surround, the first step is put into the light-alloy blank first die cavity and is cooperated by the box-like counterdie of extruding upper male mould and lobe and adopt the extrusion process preform to go out the spoke outer surface profile of wheel hub and the substructure of wheel rim during shaping, and simultaneously clout is pre-formed into the hollow tube blank structure, the overall structure of spoke thereby the spoke inner surface profile that second step cooperates the performing member extrusion molding that first step extrusion molding is gone out to go out wheel hub with bulging upper male mould and the box-like counterdie of this lobe again is shaped, the hollow tube blank structure that by bulging process first step preform is gone out simultaneously is configured as the superstructure of wheel rim, make the smart base of wheel hub, namely become the wheel hub product through a small amount of machining and surface treatment again.
Described blank is that as cast condition or As-extruded blank are processed the biscuit that obtains, and its effect after the homogenising solution treatment is better.
It is 350 ℃ to 420 ℃ that described magnesium alloy blank is shaped temperature required, and it is 400 ℃ to 480 ℃ that described aluminum alloy blank is shaped temperature required.
The temperature of described shaping dies is consistent with the forming temperature of blank.
The inner surface of the spoke part that described first step preform goes out is the plane.
Simultaneously, the problems such as the present invention also provides the Plastic Forming mould that forms a complete set of that is used for implementing above-mentioned manufacturing process, and the production process that exists with the Plastic Forming mould that solves automotive hub in the prior art is many, production efficiency is low, equipment tonnage is large, die size is large, production cost is high.
The technical scheme of a kind of complete assembling die wherein is: a kind of complete assembling die, comprise a box-like counterdie of lobe and two successively with extruding upper male mould and the bulging upper male mould of the box-like counterdie corresponding matching of this lobe, the box-like counterdie of described lobe comprises by lobe and closes the die cavity that backing-out punch that die and lower punch and slip be plugged in the lower punch center surrounds, it is identical to close the outer surface profile of the die internal face that surrounds and the wheel hub top wheel rim that will be shaped by lobe in the die cavity, the common upper surface that consists of of lower punch and backing-out punch coincide with the spoke outer surface profile of the wheel hub that will be shaped, the junction that lower punch and lobe close die is provided with the annular groove that coincide with the wheel rim substructure that will be shaped, described lobe closes die and is comprised of plural recessed model petal block, is connected with respectively folding mould driving mechanism on described each recessed model petal block; The outer peripheral face of described extruding upper male mould and the minimum diameter of die cavity partly form the backward extrusion work band for preform hollow tube blank structure; The outer peripheral face of described bulging upper male mould bottom is provided with the surface texture that coincide with the inner surface profile of the wheel hub top wheel rim that will be shaped, and its bottom shape coincide with the spoke inner surface profile of the wheel hub that will be shaped.
Comprise that also support and connection close the backing plate of die and lower punch bottom at lobe, described lower punch is flush-mounted in the center of this backing plate upper surface, the bottom surface that described lobe closes each recessed model petal block of die cooperates with the upper surface close contact of backing plate, described backing-out punch by the step surface that axially arranges down on the side face by the backing plate axial limiting.
Described each recessed model petal block is set with a die sleeve outward, each recessed model petal block is retrained by this die sleeve and is slidingly matched by inclined ramp and die sleeve, described folding mould driving mechanism comprises that correspondence is arranged at the little push rod of each recessed model petal block bottom, each little push rod endwisely slips and is installed in the unthreaded hole that the backing plate correspondence offers, the top jacking of each little push rod is connected with top board in the bottom of each little push rod by large push rod jacking in the bottom of the recessed model petal block of correspondence.
The bottom of described backing-out punch axially towards the upper surface of downward-extension near top board, is installed with spacing between the bottom surface of backing-out punch and the upper surface of top board.
Go back jacking in the bottom of described die sleeve and backing plate and be connected with die shoe.
Also comprise the vertical pin that corresponding each recessed model petal block axially arranges, corresponding each vertical pin axially offers pin-and-hole respectively in the joint portion of described die sleeve and each recessed model petal block.
A kind of technical scheme that makes up upper male mould wherein is: a kind of combination upper male mould, comprise extruding upper male mould and bulging upper male mould, described extruding upper male mould is cylindrical structure, the bottom surface is the plane, and the minimum diameter in its diameter and the die cavity that is used for corresponding matching quite and with the minimum diameter of die cavity partly forms backward extrusion work band; Described bulging upper male mould also is cylindrical structure, and the outer peripheral face shape of its underpart is coincide with the inner surface profile of the wheel hub top wheel rim that will be shaped, and its bottom shape coincide with the spoke inner surface profile of the wheel hub that will be shaped.
A kind of technical scheme of pushing upper male mould wherein is: a kind of extruding upper male mould, this extruding upper male mould is cylindrical structure, the bottom surface is the plane, and the minimum diameter in its diameter and the die cavity that is used for corresponding matching quite and with the minimum diameter of die cavity partly forms backward extrusion work band.
The present invention compared with prior art has the following advantages:
1) Plastic Forming of automotive hub only needs can finish in two steps with a cover shaping dies, thereby can obviously reduce equipment and mold and drop into, and reduces the production cost of wheel hub;
2) adopt a mold production, reduced existing each inter process to the heating of each mould, reduced energy consumption, thereby further reduced the manufacturing cost of wheel hub;
3) adopt a mold to be shaped in two steps, so that the forming pressure in each step is very little, thereby can reduce equipment tonnage, reduce die size, so that production cost further descends;
4) adopt a mold to be shaped in two steps, reduced the needed manpower and materials of Mould operation, further reduced production cost;
5) adopt a mold to be shaped in two steps, it carries out at a mold to finally making wheel hub all the time from putting into blank, performing member needs the more process of mold exchange in the prior art when carrying out next step thereby reduced, and has shortened the manufacturing time of wheel hub, has improved the manufacturing efficient of wheel hub;
6) adopt isothermal extrusion technology so that the even refinement of metal structure, product size precision and surface accuracy are high, are easy to be shaped, and stock utilization is high, has improved simultaneously the mechanical property of product; 7) shaping dies of the present invention is simple in structure, and automaticity is high, and is easy to operate, can namely can be made into through less improvement on the basis of existing mold, thereby reduce the manufacturing cost of equipment, has further reduced the input of equipment.
Description of drawings
Fig. 1 is the process chart of the combination plastic molding method of automotive hub of the present invention;
Fig. 2 is the structural representation of the box-like counterdie specific embodiment of mesopetalum of the present invention;
Fig. 3 is the top view that Fig. 2 mesopetalum closes die;
Fig. 4 is the structural representation of extruding upper male mould specific embodiment among the present invention;
Fig. 5 is the structural representation of bulging upper male mould specific embodiment among the present invention;
Fig. 6 is the working state schematic representation that the extruding upper male mould cooperates with the box-like counterdie of lobe in the first step of the embodiment of the invention one;
Fig. 7 is the working state schematic representation that the bulging upper male mould cooperates with the box-like counterdie of lobe in the second step of the embodiment of the invention one;
Fig. 8 is the demoulding view of shaping dies among the present invention;
Fig. 9 is the structural representation of the box-like counterdie embodiment two of mesopetalum of the present invention.
The specific embodiment
The combination plastic molding method of automotive hub of the present invention such as Fig. 1, Fig. 5, shown in Figure 6, among Fig. 1, Fig. 1 a is biscuit, Fig. 1 b cooperates extrusion molding to consist of for the extruding upper male mould with the box-like counterdie of lobe performing member structure, Fig. 1 c is that the bulging upper male mould cooperates the smart blank structure of the wheel hub that is shaped with the box-like counterdie of lobe, its mainly be with light-alloy blanks such as aluminium alloy or magnesium alloys under isothermy, adopt a cover shaping dies to be shaped in two steps, make the smart base of wheel hub, the smart base of the wheel hub that makes is namely become the wheel hub product through a small amount of machining and surface treatment.
Embodiment one: extremely shown in Figure 5 such as Fig. 2, automotive hub combination Plastic Forming mould of the present invention comprises a box-like counterdie of lobe, the box-like counterdie of this lobe has a lobe and closes die, this lobe closes die and is comprised of plural recessed model petal block 5, the bottom of closing die at lobe is provided with a lower punch 7, central slide at lower punch 7 is fitted with a backing-out punch 6, this lobe closes die when matched moulds and lower punch 7 and backing-out punch 6 surround die cavity for the shaping wheel hub jointly, and it is identical to close the outer surface profile of the die internal face that surrounds and the wheel hub top wheel rim that will be shaped by lobe in the die cavity, lower punch 7 coincide with the spoke outer surface profile of the backing-out punch 6 common upper surfaces that consist of with the wheel hub that will be shaped, lower punch 7 is provided with the annular groove that coincide with the wheel rim substructure that will be shaped with the junction that lobe closes die.For ease of installing and fixing of lower punch 7, in the present embodiment, also be provided with a backing plate 9 in the bottom of lower punch 7, this lower punch 7 is inlaid in the mounting groove that the center correspondence of backing plate 9 upper surfaces offers.Simultaneously, the bottom of backing-out punch 6 pass backing plate 9 and by the step surface that axially arranges down on its outer peripheral face by backing plate 9 axial limitings.
In the present embodiment, also be set with a die sleeve 8 outside each recessed model petal block 5, each recessed model petal block 5 is slidingly matched with die sleeve 8 by 8 constraints of this die sleeve and the inclined ramp 16 by both sides.Die sleeve 8 all is fixedly mounted on the die shoe 13 with backing plate 9, can realize stable support to shaping dies by this die shoe 13.For realizing that lobe closes the folding mould of die, close at lobe on each recessed model petal block 5 of die and be connected with respectively folding mould driving mechanism.In the present embodiment, this folding mould driving mechanism comprises that correspondence is arranged at the little push rod 10 of each recessed model petal block 5 bottom, each little push rod 10 endwisely slips and is installed in the unthreaded hole that correspondence is offered on the backing plate 9, the top jacking of each little push rod 10 is in the bottom of the recessed model petal block 5 of correspondence, jacking is connected with top board 11 in the bottom of each little push rod 10, and this top board 11 radially is fixed on the upper end of the large push rod 12 of a coaxial setting.When large push rod 12 moves upward, promote little push rod 10 by top board 11 and move upward, little push rod 10 promotes corresponding recessed model petal block 5 and moves upward along the inclined ramp on die sleeve 8 cone-shaped walls, thereby realizes die sinking.Owing to the wheel hub product must be avoided when the demoulding wheel hub product to be closed die by lobe stopping and produce distortion, therefore need to make lobe close at first die sinking of die by folding mould driving mechanism first, and then carry out the demoulding of wheel hub product, in the present embodiment, for simplifying the structure of mould, die sinking and the demoulding can be carried out synchronously, its with the bottom of backing-out punch 6 axially to the upper surface of downward-extension near top board 11, between the upper surface of the bottom of backing-out punch 6 and top board 11, be installed with spacing, so that when the demoulding, large push rod 12 promotes first the up jacking lobe of little push rod by top board 11 and closes die, makes lobe close the die sinking of die elder generation, when top board 11 up during by the bottom of the spacing jacking between backing-out punch 6 and the top board 11 at backing-out punch 6, it is up to promote backing-out punch 6 again, realization die sinking and the demoulding are carried out synchronously, and the wheel hub product of making is ejected, and finish the demoulding.
For preventing in process of production, each recessed model petal block 5 is subjected to the effect of flow of metal power along the reverse upward sliding of the inclined ramp on the die sleeve 8, mould was lost efficacy, among the present invention, on each recessed model petal block 5, also be respectively arranged with the stopping means that prevents that it is up in extrusion process, this stopping means be included in the vertical pin-and-hole 14 die sleeve 8 and the joint portion between each recessed model petal block 5 offered respectively and with the vertical pin 15 of each pin-and-hole 14 corresponding inserting, vertical pin 15 is installed on the forcing press and extruding upper male mould 1 or bulging upper male mould 2 synchronization actions in use, during use, vertical pin 15 is simultaneously descending with extruding upper male mould 1 or bulging upper male mould 2, be inserted in the corresponding pin-and-hole 14 that arranges, each recessed model petal block 5 is carried out axial spacing, thereby can prevent the reverse slide of each recessed model petal block 5, guarantee carrying out smoothly of production.In actual applications, it also can adopt the mode that corresponding each recessed model petal block 5 radial convex are established limited block on the outer peripheral face of extruding upper male mould 1 and bulging upper male mould 2, each recessed model petal block 5 is carried out axial spacing, also can reach identical technique effect.
Also comprise one group of combination upper male mould with the box-like counterdie of lobe successively corresponding matching in the automotive hub of the present invention combination Plastic Forming mould, this combination upper male mould suits bulging upper male mould 2 and forms by pushing upper male mould.Wherein, the profile of extruding upper male mould 1 adopts cylindrical structural, and the minimum diameter in its diameter and the die cavity is suitable, and the minimum diameter of its outer peripheral face and die cavity partly forms backward extrusion work band, and its bottom surface is the plane.When this extruding upper male mould 1 and the box-like counterdie corresponding matching of above-mentioned lobe, be formed for the ring cavity of preform hollow pipe 3 structures between the internal face that the outer peripheral face of extruding upper male mould 1 bottom and lobe close die, it is the cavity that plane, bottom and spoke outer surface profile coincide, are used for the preform spoke architecture that the upper surface of its bottom surface and lower punch 7 and backing-out punch 6 surrounds top.The main body of bulging upper male mould 2 also adopts cylindrical structure, and the outer peripheral face shape of its underpart is coincide with the inner surface profile of the wheel hub top wheel rim that will be shaped, and its bottom shape coincide with the spoke inner surface profile of the wheel hub that will be shaped.Thereby with the box-like counterdie corresponding matching of lobe the time, the ring cavity that forms between its underpart outer peripheral face and the die inwall coincide with top wheel rim 4 structures of the wheel hub that will be shaped, and the cavity that surrounds between the upper surface of its bottom surface and lower punch 7 and backing-out punch 6 coincide with the spoke architecture of the wheel hub that will be shaped.
Above-mentioned extruding upper male mould 1 and bulging upper male mould 2 successively with the box-like counterdie corresponding matching of lobe, adopt two step forming modes that blank is crushed to wheel hub.Wherein, the cavity volume that is surrounded by extruding upper male mould 1 and lower punch 7 and backing-out punch 6 and equated with the cavity volume that lower punch 7 and backing-out punch 6 surround by bulging upper male mould 2.For realizing Isothermal Extrusion, insert respectively electrically heated rod after the present invention adopts and holes and heat in extruding upper male mould 1, bulging upper male mould 2, lower punch 7 and each recessed model petal block 5, and use respectively thermocouple observing and controlling temperature; In order to reduce thermal loss, the exposed parts of each heating mould part and and fixture between adopt heat-preservation cotton heat insulation.
During shaping, follow these steps to finish shaping work:
⑴ the aluminium alloy of, hub for vehicle wheel material selection as cast condition or As-extruded or the bar-shaped blank of magnesium alloy, the minimum diameter size blanking that this bar-shaped blank is pressed in the box-like counterdie die cavity of lobe forms biscuit, the volume of biscuit is suitable with the wheel hub volume that will be shaped, and this biscuit performance after the homogenising solution treatment is better;
⑵, the biscuit that makes is preheating to 120～180 ℃, and corresponding different materials is heated to the forming temperature of technological requirement with biscuit and is incubated after lubricant is smeared on its surface, Mg alloy formed temperature is 350～420 ℃, and the aluminium alloy forming temperature is 400～480 ℃;
⑶, on request mould being heated, is to realize that Isothermal Extrusion is shaped, and the heating-up temperature of mould is consistent with the forming temperature of biscuit, and Mg alloy formed temperature is 350～420 ℃, and the aluminium alloy forming temperature is 400～480 ℃, and requires mold temperature even;
⑷, the biscuit that heats is put into the die cavity bottom of the box-like counterdie of lobe, and will push on the working position that upper male mould 1 is installed to forcing press, the starting pressure machine, as shown in Figure 6, it is descending with vertical pin 14 that forcing press drives extruding upper male mould 1, prevent that it is up in the pin-and-hole 15 between vertical pin insertion die sleeve 8 and each the recessed model petal block 5, extruding upper male mould 1 cooperates with die makes the biscuit distortion form prefabricated component 3, wherein, part metal flow is to by in the annular groove between lower punch 7 and the die, the substructure of wheel rim is shaped, pushing simultaneously upper male mould 1 cooperates preform to go out the outer surface profile of the spoke of wheel hub with lower punch 7, the inner surface of its spoke part is the plane, simultaneously, the remainder metal then is configured as the hollow tube blank structure in the outer peripheral face reverse flow of extruding upper male mould 1 enters ring cavity between extruding upper male mould 1 and the die, thereby preliminary preform goes out the superstructure of wheel rim;
⑸, the movable drive of forcing press are pushed upper male mould 1 and vertical pin 14 backhauls;
⑹, bulging upper male mould 2 is changed to the operating position;
⑺ it is descending that, forcing press drive bulging upper male mould 2, as shown in Figure 7, bulging upper male mould 2 by its bottom shape with the performing member 3 that is shaped in the first step pressing steps be shaped the spoke inner surface profile of wheel hub, thereby the whole spoke architecture that cooperates the wheel hub that is shaped with the upper surface of lower punch 7 and backing-out punch 6, simultaneously, the outer peripheral face of bulging upper male mould 2 cooperates with die, the be shaped hollow tube blank structure on wheel rim top of the prefabricated component 3 that of the first step is carried out the rigidity bulging, the wheel rim superstructure of wheel hub that is shaped, thus make wheel hub 4;
⑻, forcing press drive 2 backhauls of bulging upper male mould; As shown in Figure 8, large push rod 12 upwards promotes top board 11 and drives little push rod 10 and order about each recessed model petal block 5 along the realization die sinking that moves upward of the inclined ramp of die sleeve 8, large push rod 12 continues up, and top board 11 is deviate from the wheel hub 4 of making by backing-out punch 6 from lower punch 7, finish the demoulding;
⑼, ejecting mechanism backhaul, each recessed model petal block 5 moves downward along inclined ramp by self gravitation and carries out matched moulds, will push simultaneously upper male mould 1 and gain former operating position;
⑽, repeat the above-mentioned ⑷ step to the ⑼ process in step, re-start the shaping of next wheel hub.
⑾, the wheel hub of step ⑼ is carried out subsequent heat treatment, a small amount of follow-up machining and surface treatment namely get automobile disc wheel of light metal alloy.
In the present embodiment, in order to reduce the frictional force of extrusion molding, with the minimum diameter of the wheel rim outer surface of the wheel hub that will the be shaped working diameter as extruding upper male mould 1, the minimum diameter of the die of extruding upper male mould 1 and each recessed model petal block 5 composition is cooperated, form backward extrusion work band, impel the clout reverse flow to form hollow tube blank structure 3.Plastic force when cooperating with counterdie for reducing second step bulging upper male mould, the extruding force of each step in the shaping of two steps is tended to balance, among the present invention, lower punch 7 equates respectively at the cavity volume that is used for the shaping spoke part that surrounds between extruding upper male mould 1 and the bulging upper male mould 2 with the backing-out punch 6 common upper surfaces that form, the spoke part structure that first step preform is gone out only produces deformation in second step, and can not produce such as metal reverse flow in the first step pressing steps, thereby make the structure formation of spoke part more reasonable, the distribution of extruding force is more balanced.
Embodiment two: as shown in Figure 9, present embodiment two is with the difference of embodiment one, each recessed model petal block 5 that the lobe that arranges in the box-like counterdie of lobe closes die is installed on the die shoe 13 by horizontal slide, what the folding mould driving mechanism that connects at each recessed model petal block 5 upper driving adopted is the driving cylinder 14 that is connected on each recessed model petal block 5 outer surface, and this driving cylinder 14 can adopt electric cylinder or hydraulic cylinder.
The combination forming method of automotive hub of the present invention will be pushed and two forming technologies of bulging are combined in the operation by a cover shaping dies and are shaped in two steps, wherein, the bottom surface of extruding upper male mould 1 is the plane, be formed for the ring cavity of preform hollow tube blank structure between its outer peripheral face and the die inwall, and the bottom surface of bulging upper male mould 2 coincide with the spoke inner surface profile that will be shaped, its outer peripheral face coincide with the wheel rim superstructure of the wheel hub that will be shaped, so that the spoke architecture of wheel hub and rim structure all are shaped at twice, in the first step extrusion process step only preform gone out outer surface profile and the hollow tube blank structure of spoke part, make just in the bulging process step of second step that spoke is final to be shaped and the superstructure of the wheel rim that finally is shaped.This technological process is the substep forming technology scheme of formulating according to the design feature of automotive hub, be shaped with a mold, be convenient to the flow forming of metal, be not difficult to the corner that is full of during shaping, and the spoke architecture of wheel hub and rim structure all be shaped in two steps, so that the plastic force of its each one is all very little, thereby can reduce the tonnage of equipment, reduce the input to equipment.Simultaneously, adopt a mold to be shaped in two steps and can reduce the more process of mold exchange, improve the efficient that wheel hub is made.
The present invention is not limited to above-described embodiment; the lobe of the box-like counterdie of lobe close that folding mould driving mechanism that the die upper driving connects can also adopt that flaring die is installed among the publication file ZL200910064335.9 mainly by die guide plate, curved pin mechanism and correspondingly be opened in the clasp mould mechanism that the pin hole on the recessed model petal block forms; its concrete structure can with reference to this patent of invention file, repeat no more herein.
The present invention not only can be applied to the shaping of the automotive hub of magnesium alloy or aluminium alloy, also can be applied to the shaping that other adopts the parts of aluminium, magnesium alloy.
Claims (8)
1. the combination plastic molding method of an automotive hub, it is characterized in that, the method with the light-alloy blank under isothermy, adopt a cover shaping dies to be shaped in two steps, this shaping dies has a box-like counterdie of lobe and reaches and the box-like counterdie of this lobe successively extruding upper male mould and the bulging upper male mould of corresponding matching, be provided with by lobe in the box-like counterdie of described lobe and close die, the die cavity that lower punch and backing-out punch surround, the first step is put into the light-alloy blank first die cavity and is cooperated by the box-like counterdie of extruding upper male mould and lobe and adopt the extrusion process preform to go out the spoke outer surface profile of wheel hub and the substructure of wheel rim during shaping, and simultaneously clout is pre-formed into the hollow tube blank structure, the overall structure of spoke thereby the spoke inner surface profile that second step cooperates the performing member extrusion molding that first step extrusion molding is gone out to go out wheel hub with bulging upper male mould and the box-like counterdie of this lobe again is shaped, the hollow tube blank structure that by bulging process first step preform is gone out simultaneously is configured as the superstructure of wheel rim, make the smart base of wheel hub, namely become the wheel hub product through a small amount of machining and surface treatment again.
2. the combination plastic molding method of automotive hub according to claim 1 is characterized in that, described light-alloy blank be with as cast condition or the bar-shaped blank of As-extruded light-alloy after the homogenising solution treatment, the biscuit that processing obtains.
3. the combination plastic molding method of automotive hub according to claim 1, it is characterized in that, described light-alloy blank is magnesium alloy blank or aluminum alloy blank, it is 350 ℃ to 420 ℃ that described magnesium alloy blank is shaped temperature required, it is 400 ℃ to 480 ℃ that described aluminum alloy blank is shaped temperature required, and the temperature of described shaping dies is consistent with the forming temperature of blank.
4. complete assembling die, it is characterized in that, comprise a box-like counterdie of lobe and successively with extruding upper male mould and the bulging upper male mould of the box-like counterdie corresponding matching of this lobe, the box-like counterdie of described lobe comprises by lobe and closes the die cavity that backing-out punch that die and lower punch and slip be plugged in the lower punch center surrounds, it is identical to close the outer surface profile of the die internal face that surrounds and the wheel hub top wheel rim that will be shaped by lobe in the die cavity, the common upper surface that consists of of lower punch and backing-out punch coincide with the spoke outer surface profile of the wheel hub that will be shaped, the junction that lower punch and lobe close die is provided with the annular groove that coincide with the wheel rim substructure that will be shaped, described lobe closes die and is comprised of plural recessed model petal block, is connected with respectively folding mould driving mechanism on described each recessed model petal block; The outer peripheral face of described extruding upper male mould and the minimum diameter of die cavity partly form the backward extrusion work band for preform hollow tube blank structure; The outer peripheral face of described bulging upper male mould bottom is provided with the surface texture that coincide with the inner surface profile of the wheel hub top wheel rim that will be shaped, and its bottom shape coincide with the spoke inner surface profile of the wheel hub that will be shaped.
5. complete assembling die according to claim 4, it is characterized in that, this complete assembling die comprises that also support and connection close the backing plate of die and lower punch bottom at lobe, described lower punch is flush-mounted in the center of this backing plate upper surface, the bottom surface that described lobe closes each recessed model petal block of die cooperates with the upper surface close contact of backing plate, described backing-out punch by the step surface that axially arranges down on the side face by the backing plate axial limiting.
6. complete assembling die according to claim 5, it is characterized in that, described each recessed model petal block is set with a die sleeve outward, each recessed model petal block is retrained by this die sleeve and is slidingly matched by inclined ramp and die sleeve, described folding mould driving mechanism comprises that correspondence is arranged at the little push rod of each recessed model petal block bottom, each little push rod endwisely slips and is installed in the unthreaded hole that the backing plate correspondence offers, the top jacking of each little push rod is connected with top board in the bottom of each little push rod by large push rod jacking in the bottom of the recessed model petal block of correspondence.
7. complete assembling die according to claim 6 is characterized in that, the bottom of described backing-out punch axially towards the upper surface of downward-extension near top board, is installed with spacing between the bottom surface of backing-out punch and the upper surface of top board.
8. according to claim 4 to the described complete assembling die of 7 any one, it is characterized in that the cavity volume that described extruding upper male mould, lower punch and backing-out punch surround and equated with the cavity volume that lower punch and backing-out punch surround by the bulging upper male mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110024157 CN102179664B (en) | 2010-12-30 | 2011-01-21 | Combined plastic forming method of automobile hub and matching forming mold of automobile hub |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010615200 | 2010-12-30 | ||
| CN201010615200.X | 2010-12-30 | ||
| CN 201110024157 CN102179664B (en) | 2010-12-30 | 2011-01-21 | Combined plastic forming method of automobile hub and matching forming mold of automobile hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102179664A CN102179664A (en) | 2011-09-14 |
| CN102179664B true CN102179664B (en) | 2013-03-20 |
Family
ID=44566056
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110024159.3A Expired - Fee Related CN102179665B (en) | 2010-12-30 | 2011-01-21 | Combined plastic forming method of automobile hub and matching forming mold of automobile hub |
| CN2011200202132U Expired - Lifetime CN202037202U (en) | 2010-12-30 | 2011-01-21 | Combination plastic matched forming die of automobile hub |
| CN2011200202113U Expired - Lifetime CN202180134U (en) | 2010-12-30 | 2011-01-21 | Complete-set combined die for automobile wheel hub, and upper male die and lower die thereof |
| CN 201110024157 Expired - Fee Related CN102179664B (en) | 2010-12-30 | 2011-01-21 | Combined plastic forming method of automobile hub and matching forming mold of automobile hub |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110024159.3A Expired - Fee Related CN102179665B (en) | 2010-12-30 | 2011-01-21 | Combined plastic forming method of automobile hub and matching forming mold of automobile hub |
| CN2011200202132U Expired - Lifetime CN202037202U (en) | 2010-12-30 | 2011-01-21 | Combination plastic matched forming die of automobile hub |
| CN2011200202113U Expired - Lifetime CN202180134U (en) | 2010-12-30 | 2011-01-21 | Complete-set combined die for automobile wheel hub, and upper male die and lower die thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN102179665B (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179665B (en) * | 2010-12-30 | 2014-07-16 | 河南科技大学 | Combined plastic forming method of automobile hub and matching forming mold of automobile hub |
| CN102581053B (en) * | 2012-03-02 | 2014-07-23 | 王静 | Method for preparing wheel hubs through backward and forward extrusion |
| CN102641915A (en) * | 2012-05-02 | 2012-08-22 | 芜湖宝德轮业有限公司 | Nave boss suppressing device |
| CN103507185B (en) * | 2012-06-16 | 2017-12-15 | 厦门鸿基伟业复材科技有限公司 | A kind of mould structure for carbon fiber automotive hub made-up article curing molding and the method with the Mold Making product |
| CN103521668B (en) * | 2013-07-30 | 2016-09-07 | 中北大学 | A kind of high-strength Complex Aluminum Alloy abnormity external hexagonal base plate extruding manufacturing process |
| CN103949548B (en) * | 2014-05-09 | 2016-03-30 | 新乡学院 | The difficult demoulding spinning mold of a kind of retractable vehicle wheel hub |
| CN105983639B (en) * | 2015-01-27 | 2018-10-12 | 王家宣 | A kind of integral light-weight alloy wheel rim isothermal forging mold |
| CN104874626B (en) * | 2015-04-24 | 2017-06-16 | 中北大学 | A kind of radial direction reverse Compound Extrusion shaping magnesium alloy heavy burden wheel disc technique and device |
| CN104907533B (en) * | 2015-05-05 | 2017-02-01 | 中国兵器科学研究院宁波分院 | Extrusion casting method for hub workblank |
| CN105583303B (en) * | 2016-03-01 | 2017-11-17 | 芜湖同创模具机械有限公司 | A kind of novel die processes automobile aluminum component system |
| CN105710317B (en) * | 2016-05-05 | 2018-10-23 | 秦皇岛中秦渤海轮毂有限公司 | A kind of aluminum alloy wheel hub flange mould mistake proofing mold device |
| CN106623724A (en) * | 2017-01-19 | 2017-05-10 | 上海交大中京锻压有限公司 | Thin-wall stainless steel changeover valve body forging process and mould structure |
| CN106583483A (en) * | 2017-01-26 | 2017-04-26 | 郝鑫颖 | Hub manufacturing equipment and hub manufacturing method |
| CN106583484A (en) * | 2017-01-26 | 2017-04-26 | 郝鑫颖 | Wheel hub manufacturing device and method |
| CN106825241A (en) * | 2017-01-26 | 2017-06-13 | 郝鑫颖 | A kind of wheel hub manufacturing equipment and manufacturing method of wheel hub |
| CN106799404A (en) * | 2017-01-26 | 2017-06-06 | 郝鑫颖 | A kind of wheel hub manufacturing equipment and manufacturing method of wheel hub |
| CN107186069B (en) * | 2017-05-31 | 2020-01-21 | 张家港幸运金属工艺品有限公司 | Flower cover expansion type film |
| CN108907030B (en) * | 2018-06-23 | 2020-09-15 | 芜湖思科生产力促进中心有限公司 | Demoulding supporting and protecting device for stamping die |
| CN111069389A (en) * | 2019-12-28 | 2020-04-28 | 广德竹昌电子科技有限公司 | Bending side wall pier thickness method |
| CN111745121B (en) * | 2020-06-29 | 2021-06-22 | 东北大学 | High-formability forging method and device for magnesium alloy hub |
| CN112718903B (en) * | 2020-12-15 | 2023-03-21 | 浙江晟绚工艺品有限公司 | Metal handicraft extrusion forming equipment |
| CN112845931A (en) * | 2021-01-11 | 2021-05-28 | 合肥正特机械有限公司 | A ejection mechanism for stamping die processing |
| CN113305199B (en) * | 2021-04-14 | 2023-07-25 | 河南科技大学 | Combined plastic forming method for magnesium alloy automobile wheels |
| CN113600634B (en) * | 2021-08-04 | 2023-07-07 | 中北大学 | Extrusion forming method for cylindrical part with boss in shape |
| CN113941679B (en) * | 2021-10-25 | 2022-05-27 | 哈尔滨工业大学 | Aluminum alloy wheel isothermal die forging method for improving material utilization rate by adopting combined female die |
| CN114633079B (en) * | 2022-04-12 | 2023-04-18 | 山东钢铁集团日照有限公司 | Production method and cooling device for hot-formed high-strength steel wheel |
| CN115041636B (en) * | 2022-04-29 | 2024-03-15 | 河南科技大学 | Extrusion casting forming die for magnesium alloy hub |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2015786C1 (en) * | 1992-06-10 | 1994-07-15 | Московский научно-технический центр "Аверт" | Method of and press tool for manufacture of solid-forged wheel disks for automotive vehicles |
| CN1864915A (en) * | 2006-06-13 | 2006-11-22 | 中北大学 | A labor-saving automobile hub forming method and device |
| CN101234401A (en) * | 2008-03-06 | 2008-08-06 | 中北大学 | Magnesium alloy automobile wheel extrusion molding method and mold |
| CN101491873A (en) * | 2009-03-06 | 2009-07-29 | 河南科技大学 | Two-step plasticity forming method of vehicle wheel hub and mated forming die |
| CN202037202U (en) * | 2010-12-30 | 2011-11-16 | 河南科技大学 | Combination plastic matched forming die of automobile hub |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6511558B1 (en) * | 1998-06-24 | 2003-01-28 | General Electric Company | Method for producing vehicle wheels |
| JP3763799B2 (en) * | 2002-04-04 | 2006-04-05 | 有限会社矢野エンジニアリング | Porthole dice |
| CN101376141B (en) * | 2008-04-21 | 2011-07-20 | 河南科技大学 | Press forming method of automobile hub and matched forming mold thereof |
| CN201516493U (en) * | 2009-09-11 | 2010-06-30 | 刘绍东 | Magnesium alloy automobile wheel hub precision molding device |
-
2011
- 2011-01-21 CN CN201110024159.3A patent/CN102179665B/en not_active Expired - Fee Related
- 2011-01-21 CN CN2011200202132U patent/CN202037202U/en not_active Expired - Lifetime
- 2011-01-21 CN CN2011200202113U patent/CN202180134U/en not_active Expired - Lifetime
- 2011-01-21 CN CN 201110024157 patent/CN102179664B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2015786C1 (en) * | 1992-06-10 | 1994-07-15 | Московский научно-технический центр "Аверт" | Method of and press tool for manufacture of solid-forged wheel disks for automotive vehicles |
| CN1864915A (en) * | 2006-06-13 | 2006-11-22 | 中北大学 | A labor-saving automobile hub forming method and device |
| CN101234401A (en) * | 2008-03-06 | 2008-08-06 | 中北大学 | Magnesium alloy automobile wheel extrusion molding method and mold |
| CN101491873A (en) * | 2009-03-06 | 2009-07-29 | 河南科技大学 | Two-step plasticity forming method of vehicle wheel hub and mated forming die |
| CN202037202U (en) * | 2010-12-30 | 2011-11-16 | 河南科技大学 | Combination plastic matched forming die of automobile hub |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102179665B (en) | 2014-07-16 |
| CN202180134U (en) | 2012-04-04 |
| CN202037202U (en) | 2011-11-16 |
| CN102179665A (en) | 2011-09-14 |
| CN102179664A (en) | 2011-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179664B (en) | Combined plastic forming method of automobile hub and matching forming mold of automobile hub | |
| CN101491873B (en) | Two-step plasticity forming method of vehicle wheel hub and mated forming die | |
| CN102228951B (en) | Chambering-forging forming method for aluminum alloy hub with complex structure and die thereof | |
| CN101376141B (en) | Press forming method of automobile hub and matched forming mold thereof | |
| CN110508737B (en) | Wheel hub extrusion forming method | |
| CN101474642B (en) | Multiway shaping method of magnesium alloy wheel and mold | |
| CN101214526B (en) | 7A04 aluminum alloy casing body parts multi-functional die forging technique and mold | |
| CN100475429C (en) | A labor-saving automobile hub forming method and device thereof | |
| CN202137312U (en) | Cold-extrusion die for output spline shaft of automobile automatic transmission | |
| CN106077257B (en) | Almag wheel hub moulding process and equipment | |
| CN101480670B (en) | Squeezing-revolving shaping method of magnesium alloy wheel and device thereof | |
| CN102632185A (en) | Magnesium alloy wheel forging forming method and die | |
| CN102284664B (en) | Semi-solid forming die and forming method for cavity-variable axisymmetric part | |
| CN202861315U (en) | Magnesium alloy wheel forging forming die | |
| CN103173597B (en) | Method for improving optional performances of large H13 steel hot-extrusion mould | |
| CN104014996A (en) | Aluminum alloy annular blank manufacturing method and backward extruding die | |
| CN101418878A (en) | Method for manufacturing titan and titan alloy bellows | |
| CN202087757U (en) | Forging, expanding and forming die for aluminum alloy hub with complex structure | |
| CN101417383B (en) | Pressing method of whole automobile axle housing | |
| CN201217051Y (en) | 7A04 aluminum alloy cartridge receiver body type part coredforging mould | |
| CN106925700B (en) | A kind of aluminum-alloy wheel larger ratio of height to diameter forging forming method | |
| CN201291265Y (en) | Flaring die of automobile hub flaring step | |
| CN107598066A (en) | Backward extrusion die forging method for magnesium alloy hub | |
| CN112496248A (en) | Forging forming device for automobile hub and using method thereof | |
| CN202591503U (en) | Flange type internal ball cage forging die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |