CN215998607U - Constant temperature wheel hub mould - Google Patents

Abstract

The utility model provides a constant temperature wheel hub mould relates to the technical field of wheel hub mould, including last mould, lower mould and a plurality of side forms of enclosing and establishing around both that overlap the setting, it has the lug that is used for the shaping spoke to go up the relative one side distribution shaping of mould, lower mould, it forms a die cavity that is used for casting wheel hub to go up mould, lower mould and side form, is provided with a plurality of type grooves respectively in one side that last mould and lower mould deviate from mutually, and the type groove is used for changing the wall thickness of mould and lower mould, makes both wall thicknesses more even. The device has the advantage of reducing the quality defect that the casting wheel hub shrinks so as to ensure the product quality.

Description

Constant temperature wheel hub mould

Technical Field

The utility model relates to a technical field of wheel hub mould especially relates to a constant temperature wheel hub mould.

Background

The hub of the motor vehicle is gradually changed from steel to aluminum alloy, the hub made of the aluminum alloy is lighter and beneficial to saving fuel oil, the hub of the motor vehicle comprises a rim, a spoke, a middle hub and a valve hole, and the hub of the motor vehicle is usually manufactured by adopting several modes of gravity casting, forging and low-pressure casting when the hub of the motor vehicle is manufactured.

According to the prior art, when the aluminum alloy hub is cast, the thickness of each structure transition part of the hub is uneven, so that the heat absorption of the aluminum alloy in a molten state by a mold is uneven, the cast product shrinks at the transition part, and the quality defect of the product occurs.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the scheme provides the constant-temperature hub die, and the problem that the hub shrinks at the transition part to cause quality defects is solved.

According to the utility model discloses an embodiment, a constant temperature wheel hub mould, including overlapping last mould, lower mould and a plurality of side forms of establishing around both of setting, it has the lug that is used for the shaping spoke to go up the relative one side distribution shaping of mould, lower mould, go up mould, lower mould and side forms a die cavity that is used for casting wheel hub, is provided with a plurality of type grooves respectively in the one side that last mould and lower mould deviate from mutually, and the type groove is used for changing the wall thickness of mould and lower mould, makes both wall thicknesses more even.

Through above technical scheme, set up type groove on last mould and lower mould and can make wall thickness between them more even, when using mould casting aluminum alloy wheel hub, the wall thickness of the mould body that is provided with type groove is thinner, the aluminum alloy liquid of filling is less at this part and the heat exchange of mould, therefore this part can reach the process temperature of regulation earlier, the temperature that the mould can conveniently be balanced to the last mould that utilizes to be provided with type groove and lower mould, it is inhomogeneous to reduce because the position temperature variation of mould at wheel hub transition structure, cause wheel hub to take place the shrink at transition structure part and cause the possibility of product defect, the processingquality of product is improved.

Preferably, a plurality of side grooves are formed in the side wall of the side die, and the side grooves are used for changing the thickness of the side die, so that the thickness of the side wall of the side die is more uniform.

Through above technical scheme, set up the thickness that type groove can change the side forms on the side forms for the side forms is convenient more when using and carries out the heat exchange with the environment, reduces because the radiating effect of side forms is not good and influence the radiating effect of mould, lower mould, and the wheel hub that further reduces the casting contracts in transition structure part appearance, causes the possibility that product quality reduces.

Preferably, the groove is filled with a heat insulation material.

Through above technical scheme, insulation material is used for keeping warm to mould and cast product to the temperature field of convenient balanced mould.

Preferably, the upper die is provided with a plurality of heat dissipation holes, and the heat dissipation holes are arranged right opposite to the bumps.

Through above technical scheme, when using the mould to cast the product, the louvre helps the mould to dispel the heat, reduces the mould because the temperature rise surpasss the technology setting value, guarantees that the mould is after repetitious usage, and the self temperature of mould is in a relatively invariable level, makes things convenient for product shaping and drawing of patterns more.

Preferably, one side of the lug, which is close to the lower die, is provided with a plurality of exhaust grooves, and the exhaust grooves are communicated with the heat dissipation holes.

Through above technical scheme, when the casting product, utilize exhaust duct and the louvre of setting on the lug can be quick with the air escape of die cavity, form the possibility of bubble when reducing the casting product.

Preferably, the bottom of the profiled groove of the upper die is provided with an exhaust hole.

Through above technical scheme, when using the mould to cast the product, the exhaust hole can conveniently be with the air in the die cavity that forms between mould, lower mould and the side forms, and the casting is conveniently carried out more, further reduces the possibility that the product produced the bubble.

Compared with the prior art, the utility model discloses one of following beneficial effect has at least:

1. the profiled groove arranged on the die can reduce the possibility that the die absorbs heat at the transition structure of the hub, so that the hub shrinks at the transition structure to cause the quality defect of a product when the hub is cast;

2. by utilizing the structure that the heat-insulating material is filled in the groove, the mold can keep a constant temperature field, thereby being beneficial to casting production;

3. utilize louvre and the air discharge duct of setting on last mould, can make the self temperature of mould keep at suitable production temperature, can conveniently discharge the gas in the die cavity simultaneously, be favorable to the drawing of patterns and the shaping of wheel hub product.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

FIG. 2 is an exploded view of the upper and lower dies;

FIG. 3 is a schematic half-section view of FIG. 1;

FIG. 4 is another angled view of the lower die;

fig. 5 is a schematic structural diagram of a bump.

In the above drawings: 1. an upper die; 11. a bump; 12. heat dissipation holes; 13. an exhaust hole; 14. a guide pin hole; 15. an exhaust groove; 2. a lower die; 3. side forms; 31. a side groove; 4. a profiled groove.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

The utility model provides a constant temperature wheel hub mould, refer to fig. 1-5, enclose the side forms 3 of establishing around both including the last mould 1 that overlaps the setting, lower mould 2 and polylith, all be provided with lug 11 in the relative one side that sets up of last mould 1 and lower mould 2, it is formed with the die cavity that is used for forming wheel hub to go up mould 1, lower mould 2 and side forms 3, all be provided with a plurality of type grooves 4 on last mould 1, lower mould 2, when using this mould casting wheel hub, can reduce the mould and absorb the heat of aluminum alloy liquid in transition structure department, thereby shrink in transition structure department when reducing the wheel hub shaping and cause the possibility that product defect appears.

Go up mould 1 and lower mould 2 and be discoid component, both coaxial settings, the lug 11 that sets up in both relative one sides that set up is used for shaping wheel hub's spoke, type groove 4 is heavy groove, all be provided with a type groove 4 between per two adjacent lugs 11, type groove 4 is just to the die cavity that is used for forming the spoke promptly, can make the thickness of mould more even through seting up type groove 4, can reduce the mould and produce the phenomenon of shrink when the temperature difference that produces that the more aluminum alloy liquid of transition structure department absorption caused the production of aluminum alloy liquid to enlarge and cause the product shaping, the quality of product has been guaranteed.

Set up side groove 31 in the side of 3 deviating from mould 1 and lower mould 2 of side forms, side groove 31 is used for changing 3 thickness of side forms, further reduces 3 heat that absorb the aluminum alloy liquid in transition structure department of side forms, further reduces because the mould absorbs the possibility that more heat causes the product to produce the shrink in local position department, is favorable to guaranteeing the production quality of product.

The groove 4 and/or the side groove 31 are/is filled with heat insulation materials, the heat insulation materials can be rock wool boards, expanded polystyrene boards and other heat insulation materials, and the heat insulation materials can insulate a cast product and a mold, so that the mold can keep a proper temperature field.

Still seted up a plurality of louvres 12 on last mould 1, louvre 12 is just to lug 11 setting, and louvre 12 is the through-hole of vertical setting, and louvre 12 is used for helping the mould to dispel the heat, reduces the mould because the temperature rise surpasss the technology setting value, guarantees that the self temperature of mould is in a relatively invariable level after repetitious usage. Open and shut in one side that lug 11 is close to lower mould 2 and have a plurality of air discharge ducts 15, air discharge duct 15 is heavy groove, and air discharge duct 15 is linked together with louvre 12, and when casting wheel hub, the structure that utilizes air discharge duct 15 and louvre 12 to be linked together can conveniently be with the gas outgoing to the external world in the mould cavity, makes things convenient for product shaping and drawing of patterns more, reduces the possibility that the product produced the bubble simultaneously.

The exhaust hole 13 is formed in the bottom of the type groove 4 of the upper die 1, the exhaust hole 13 is communicated with a die cavity for forming the hub, when the hub is cast by using the die, the exhaust hole 13 can conveniently and directly exhaust air in the die cavity, the hub is more conveniently formed, and meanwhile, the possibility of generating bubbles of a cast product can be further reduced.

A plurality of guide pin holes 14 are formed in the upper die 1 and the lower die 2, the guide pin holes 14 in the upper die 1 and the lower die 2 are coaxially arranged, and when the upper die 1 and the lower die 2 are installed together, the guide pin holes 14 are usually formed in the lower die and are positioned by using a plug pin, so that the positions of the guide pin and the lower die can be accurately installed.

For the use of this mould of convenience, install in the riser ring at the top of last mould 1, the riser ring can be customized as required, and the riser ring is arranged in exhaust gas, collects the fixed body sediment material in the aluminum alloy liquid and repairs the shrink defect that the product produced.

The application principle of a constant temperature wheel hub mould does: get the mould and go up mould 1 and lower mould 2 coincidence installation together, enclose side forms 3 and establish and form the die cavity that is used for casting wheel hub around last mould 1 and lower mould 2, to annotating aluminum alloy liquid in the die cavity, after aluminum alloy liquid flows into the die cavity, because last mould 1, type groove 4 and side slot 31 have been seted up on lower mould 2 and side forms 3, can be so that the heat of absorption aluminum alloy that the mould can be even, reduce because the mould has absorbed more heat in transition structure department, the wheel hub that produces the local difference in temperature when leading to casting aluminum alloy liquid causes production produces the shrink, make the product produce quality defects, be favorable to guaranteeing product quality.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (7)

1. The utility model provides a constant temperature wheel hub mould which characterized in that: including overlapping last mould (1), lower mould (2) that sets up and a plurality of side forms (3) of establishing around both, it has lug (11) that are used for the shaping spoke to go up mould (1), lower mould (2) relative one side distribution shaping, it forms a die cavity that is used for casting wheel hub to go up mould (1), lower mould (2) and side forms (3), is provided with a plurality of type grooves (4) respectively in the one side that goes away from mutually of last mould (1) and lower mould (2), and type groove (4) are used for changing the wall thickness of going up mould (1) and lower mould (2), make both wall thicknesses more even.

2. A constant temperature hub die as claimed in claim 1, wherein: a plurality of side grooves (31) are formed in the side wall of the side die (3), and the side grooves (31) are used for changing the thickness of the side die (3) so that the thickness of the side wall of the side die (3) is more uniform.

3. A constant temperature hub die as claimed in claim 1, wherein: and the groove (4) is filled with a heat-insulating material.

4. A constant temperature hub die as claimed in claim 2, wherein: and the side groove (31) is filled with a heat insulation material.

5. A constant temperature hub die as claimed in claim 1, wherein: the upper die (1) is provided with a plurality of heat dissipation holes (12), and the heat dissipation holes (12) are arranged right opposite to the bumps (11).

6. A constant temperature hub die as claimed in claim 5, wherein: and one side of the lug (11) close to the lower die (2) is provided with a plurality of exhaust grooves (15), and the exhaust grooves (15) are communicated with the heat dissipation holes (12).

7. A constant temperature hub die as claimed in claim 1, wherein: and the bottom of the profiled groove (4) of the upper die (1) is provided with an exhaust hole (13).

Images