CN208575228U - A kind of metal hollow thin-walled parts founding mold - Google Patents

Abstract

A kind of metal hollow thin-walled parts founding mold, metal hollow thin-walled parts founding mold includes bracket (1), it clogs column (2), upper mold (3), positioning column (4), upper core model (5), lower core model (6), lower die (7), housing on plastic uptake, housing under plastic uptake, the taper releasing process that metal hollow thin-walled parts founding mold is generally used using housing under housing on the plastic uptake of thin-walled and plastic uptake instead of present founding industry, prevent problem of the taper releasing process in later period machining, in addition, plastic uptake product is also conducive to demould, since plastic uptake product itself has certain stabilization to husky core, it can prevent Sha Xin from collapsing, reduce husky core amount of water, hardness is inconsistent after preventing cast member from processing, cause post-production difficult or can not process at all, the filling column technique of use, prevent thin-walled zero Part hollow space sand core volume is big, and supporting surface is small, needs the drawbacks of thickening husky core.

Description

A kind of metal hollow thin-walled parts founding mold

Technical field

The application belongs to mould product, more particularly, to a kind of metal hollow thin-walled parts founding mold.

Background technique

Motor casing is based on ironcasting, aluminum casting, and section motor is using die casting shell, pressur casting size Precision is high, and still, die casting is using extraordinary mould steel, also, the number that mold uses is limited, and mold production is multiple in addition Miscellaneous, die casting is at high cost, and ironcasting and aluminum casting are then since using composable mold, the composable mold is usually by outer Mould, core model composition, external mold are made of upper die and lower die two parts, motor casing are divide into upper part and lower part, the top of core model Point and lower part be respectively motor upper and bottom section, upper die and lower die load onto Sha Xin respectively, upper mold and core model it is upper Part obtains the type chamber of part on motor, and the type chamber of part, two parts type under motor are separately won to obtain in the lower part of lower die and core model Chamber forms a complete motor shape, and motor casing is thin-wall product, and hollow space diameter accounts for motor outer diameter ratio Height, the husky core that when such product founding easily causes hollow space collapse, and husky core collapses in order to prevent, need to design intermediate die, For the needs of demoulding, intermediate die design size profit margin is big, and tapered, and composable mold itself also reduces essence in addition Degree, the Product Precision processed is very low, and often the product after over mechanical processing is thick on one side, thin on one side, influences final Product quality, in addition, in founding technique, it usually needs to sand plus water, adding the number of water is also a special kind of skill, adds water Less, it is easy to collapse when demoulding, adds water more, then founding part is similar has added one of heat treatment process, causes product to be hardened, especially criticizes Product is measured, the product cast out is soft or hard different, and when subsequent mechanical being caused to be processed, size is difficult to control, and portioned product is too hard, YG Class, HSS class cutter even YW1, YW2 cutter are difficult to, and can only be scrapped, and when thin-wall product founding, since wall itself is thin, are also held Easily there is waste product, during founding, sprue is pricked out with iron rod, then moved back usually by worker after sand mold completion Out, this sprue has small part sand to enter injection pot, easily causes founding part pitted skin, in addition, when foundry worker operates, Part of the upper die needs to remove core model, is overturn, and the husky core of hollow space lacks support construction, is cause Sha Xin to collapse important Reason.

Utility model content

Technical problems to be solved:

1, the case where thin-wall product that founding part processes is easy to appear gage distortion, it is therefore desirable to solve gage distortion The case where；

2, it is big to reserve machining allowance for founding part, it is desirable to reduce pre- allowance reduces the big problem of coke consumption amount；

3, founding part is tapered, it is desirable to reduce or even taper problem is not set up on mold since demoulding limits；

4, Sha Xin needs plus water, need to solve the problems, such as plus water number, reduce plus product difficulty caused by water is irregular process or Person's sand core collapses problem.

Technical solution: a kind of metal hollow thin-walled parts founding mold, metal hollow thin-walled parts founding mold include branch Frame 1, filling column 2, upper mold 3, positioning column 4, upper core model 5, lower core model 6, lower die 7, housing, feature under housing, plastic uptake on plastic uptake It is:

The filling column 2 is screwed into bracket 1, and two brackets 1 are placed into upper mold 3 and lower die 7 respectively；

The rectangular room Sha Xin is constituted on the inside of 3 left-right and front-back four sides baffle of the upper mold, for filling husky core, in upper mold 3 Lower two sides is without baffle；

The rectangular room Sha Xin is constituted on the inside of 7 left-right and front-back four sides baffle of the lower die, for filling husky core, in lower die 7 Lower two sides is without baffle；

The upper mold 3, upper core model 5, lower core model 6, lower die 7 are sequentially placed from top to bottom, and 4 positioning columns 4 is utilized to inject Location hole positioning, location hole include 4 upper mold location hole 31, the 4 upper lower core model location holes 61,4 of core model location hole 51,4 Lower die location hole 71；

Housing packs into core model parent part 53 on plastic uptake, and housing packs into lower core model parent part 63 under plastic uptake；

The bracket 1 includes cross bar 111, vertical bar 112, bracket locating ring 12, bracket threaded hole 13；

The filling column 2 includes filling column positioning side 22, filling male screw section 23, cylindrical body 21 or cone table 24.

The cross bar 111 and the formation cross in 90 ° of vertical bar 112；

The bracket locating ring 12 is circle, positioned at the intersection of cross, bracket locating ring 12 and filling column positioning Side 22 cooperates, so that the position of filling column 2 is limited, to guarantee the either lower core model parent part 63 of filling column 2 and upper core model parent part 53 Interstitial hole it is concentric；

The bracket threaded hole 13 is located at the center of bracket locating ring 12, bracket threaded hole 13 and filling male screw Section 23 cooperates, so that filling column 2 is screwed into bracket 1, reach >=filling male screw section 23 length of bracket threaded hole 13；

The filling male screw section 23 is located at the center on filling column positioning side 22；

Part is cylindrical body 21 or is cone table 24 for the filling of filling column 2, and material is gray cast iron.

The upper core model 5 includes upper core model location hole 51, upper core mold plate 52, upper core model parent part 53；

The lower core model 6 includes lower core model location hole 61, lower core mold plate 62, lower core model parent part 63；

The upper core model location hole 51 is 4, and rectangular in form is distributed in the quadrangle of core mold plate 52；

The lower core model location hole 61 is 4, and rectangular in form is distributed in the quadrangle of lower core mold plate 62, and 4 upper cores For lower 61 position of core model location hole of mould location hole 51 and 4 at corresponding relationship, pore size is identical；

The upper core mold plate 52 and lower core mold plate 62 are plate；

The upper core model parent part 53 is fixedly mounted in core mold plate 52, and lower core model parent part 63 is fixedly mounted on lower core model On plate 62；

Upper core model parent part 53 refers to that the upper part mould of metal hollow thin-walled parts, lower core model parent part 63 refer to metal hollow The cross sectional shape of the lower part mould of thin-walled parts, upper core model parent part 53 and lower 63 its upper and lower junction of core model parent part is to kiss completely It closes, the effect of upper core model parent part 53 and lower core model parent part 63 is the chamber to be formed in husky core, and the shape of chamber is exactly to cast out Metal hollow thin-walled parts shape, that is, the metal hollow thin-walled parts shape cast out, size by upper core model parent part 53 and under Core model parent part 63 determines that the upper and lower position of chamber, is not necessarily referring to when the upper core model 5 and about 6 meaning of lower core model only refer to founding The shapes of metal hollow thin-walled parts, position up and down.

The upper mold 3 is by upper mold location hole 31, upper mold reinforcing rib 32, upper mold cross bar position 331,332 groups of upper mold vertical bar position At；

The lower die 7 is by lower die location hole 71, lower die reinforcing rib 72, lower die cross bar position 731,732 groups of lower die vertical bar position At；

The upper mold location hole 31 is 4, and rectangular in form is distributed in the quadrangle of upper mold 3；

The lower die location hole 71 is 4, and rectangular in form is distributed in the quadrangle of lower die 7, and 4 upper mold location holes 31,4 lower die location hole 71,4 upper lower 61 positions of core model location hole of core model location hole 51,4 are at corresponding relationship, pore size It is identical, the diameter of aperture=microcephaly 42；

The upper mold reinforcing rib 32 is located at the outer wall of the left-right and front-back of upper mold 3, for reinforcing the intensity of upper mold outer wall；

Described is the outer wall for the left-right and front-back that lower die reinforcing rib 72 is located at lower die 7, for reinforcing the intensity of lower die outer wall；

The upper mold cross bar position 331, lower die cross bar position 731 are 2, are located at the top of upper mold 3, lower die 7 The right and left of lower part, upper mold cross bar position 331, lower die cross bar position 731 are recessed position, are recessed the thickness of bit depth=cross bar 111 Degree is recessed outside spacing=cross bar of the width of bit width=cross bar 111,2 upper mold cross bar positions 331 or lower die cross bar position 731 111 length；

The upper mold vertical bar position 332, lower die vertical bar position 732 are 2, are located under the top of upper mold 3, lower die 7 The front and back both sides in portion, upper mold vertical bar position 332, lower die vertical bar position 732 are recessed position, are recessed the thickness of bit depth=vertical bar 112, Outside spacing=vertical bar 112 of the width of recessed bit width=vertical bar 112,2 upper mold vertical bar positions 332 or lower die vertical bar position 732 Length；

Using magnetic installation, magnetism installation refers to that there are a side in bracket position and bracket bar material for the cradling piece and bracket position Or two side be magnetic, another party can be attracted magnetically, and cradling piece is installed into corresponding branch by way of magnetic absorption Frame position, cradling piece refer to cross bar 111, vertical bar 112, and bracket position refers to upper mold cross bar position 331, upper mold vertical bar position 332, lower die cross bar Position 731, lower die vertical bar position 732.

Housing is plastic uptake product of the fingerstall on upper core model parent part 53 on the plastic uptake, the inner surface of housing on plastic uptake Interior outside and upper core model parent part 53 interior outer surface be it is identical, on plastic uptake 92 bottom of upper chamber of housing be opening side To, 92 bottom of upper chamber close to upper core mold plate 52, housing upper position is closed on plastic uptake；

The sprue 91 refers to that casting liquid enters the entrance of upper chamber 92, and sprue 91 is located at 92 top of upper chamber, Sprue 91 is designed in 92 upper width the widest part of upper chamber；

The upper chamber 92 refers to the space that husky core needs to leave a blank in upper mold 3；

The upper cup room 94 refers to the recessed space that the inside and bottom surface of outer jacket surface on plastic uptake are formed, and bottom surface refers to Close to the surface of upper core mold plate 52；

Housing is plastic uptake product of the fingerstall on lower core model parent part 63 under the plastic uptake, the inner surface of housing under plastic uptake Interior outside and lower core model parent part 63 interior outer surface be it is identical, under plastic uptake at the top of the lower chambers 93 of housing be opening side To 93 top of, lower chambers close to lower core mold plate 62, housing lower position is closed under plastic uptake；

The lower chambers 93 refer to the space that husky core needs to leave a blank in lower die 7；

The lower cup room 95 refers to the recessed space that the inside and top surface of outer jacket surface under plastic uptake are formed, and top surface refers to Close to the surface of lower core mold plate 62, there is stomata 96 in lower cup room 95, and preventing air from forming air chamber influences the cast member processed production Quality, the inner surface of housing refers respectively to the table close to upper core model parent part 53, lower core model parent part 63 under housing, plastic uptake on plastic uptake Face, outer surface refer to that, close to the surface of husky core, the plastic uptake refers to the thin-walled plastic cement products processed using plastic uptake technique.

The anti-mould that collapses is made of the anti-mould side first 34 that collapses, the anti-mould 8 that collapses, and the anti-mould 8 that collapses is by anti-collapse mould side second 86, mold Mouth 87 forms；There is the anti-mould side first 34 that collapses in the inside of upper mold 3 below, and the anti-mould side first 34 that collapses is used to shelve the anti-mould 8 that collapses, anti-to collapse Collapse 8 length and width dimensions of mould=sand core length and width dimensions, the anti-mould 8 that collapses have it is anti-collapse mould while second 86 and it is anti-collapse mould while first 34 cooperate, it is anti-to collapse Mould collapse when second 86 is recessed, recessed depth=anti- mould side first 34 that collapses thickness, to make anti-8 bottom surface of mould and 3 bottom of upper mold of collapsing Face is in same plane, there is mold mouth 87 among the anti-mould that collapses, and mold mouth 87 is used to put into core model parent part 53, and mold mouth 87 is big In the external dimensions of upper core model parent part 53, so that convenient upper core model parent part 53 puts mold mouth 87 into.

The utility model has the advantages that metal hollow thin-walled parts founding mold is replaced using housing under housing on the plastic uptake of thin-walled and plastic uptake The taper releasing process that present founding industry generally uses, it is therefore prevented that difficulty of the taper releasing process when being machined in the later period Topic, since plastic uptake product itself has certain stabilization to husky core, can prevent in addition, plastic uptake product is also conducive to demould Sha Xin collapses, and reduces husky core amount of water, and hardness is inconsistent after preventing cast member from processing, cause post-production difficult or It can not process at all, the filling column technique of use prevents thin-walled parts hollow space sand core volume big, and supporting surface is small, needs The drawbacks of thickening husky core.

Detailed description of the invention

Attached drawing 1 is the explosive view of metal hollow thin-walled parts founding mold；

Attached drawing 2 is the three-dimensional view of metal hollow thin-walled parts founding mold；

Attached drawing 3 is supporting structure schematic diagram；

Attached drawing 4 is cylindrical filling rod structure schematic diagram；

Attached drawing 5 is upper die structure schematic diagram；

Attached drawing 6 is lower die structure schematic diagram；

Attached drawing 7 is upper core mold structure schematic diagram；

Attached drawing 8 is lower core mold structure schematic diagram；

Attached drawing 9 is motor casing structural schematic diagram；

Attached drawing 10 is the structural schematic diagram of housing on plastic uptake；

Attached drawing 11 is the structural schematic diagram of housing on plastic uptake；

Attached drawing 12 is the structural schematic diagram of housing under plastic uptake；

Attached drawing 13 is positioning column structural schematic diagram；

Attached drawing 14 is the filling rod structure schematic diagram of taper type；

Attached drawing 15 is the anti-mode structure schematic diagram that collapses；

Attached drawing 16 is the anti-mould explosive view that collapses；

Attached drawing 17 is two kinds of existing founding molds and the application founding mold schematic illustration.

In figure, 1- bracket；2- clogs column；3- upper mold；4- positioning column；The upper core model of 5-；Core model under 6-；7- lower die；8- is anti-to collapse Collapse mould；111- cross bar；112- vertical bar；12- bracket locating ring；13- bracket threaded hole；21- cylindrical body；22- clogs column and positions side； 23- clogs male screw section；24- cone table；31- upper mold location hole；32- upper mold reinforcing rib；331- upper mold cross bar position；332- upper mold Vertical bar position；The anti-mould side first that collapses of 34-；41- major part；42- microcephaly；71- lower die location hole；7- lower die reinforcing rib；731- lower die is horizontal Bar position；732- lower die vertical bar position；The upper core model location hole of 51-；The upper core mold plate of 52-；The upper core model parent part of 53-；Core model positions under 61- Hole；Core mold plate under 62-；Core model parent part under 63-；81- end cap locking screw pit；82- rotor position；83- concave edge position；84- under-chassis hole； 85- terminal box locking hole；The anti-mould Bian Yi that collapses of 86-；87- mold mouth；91- sprue；92- upper chamber；Cup room under 93-；On 94- Cup room；95- lower chambers；96- stomata；A- needs the casting thin-wall part thin wall section cast out；B- actual casting mould inner wall Section line；C- sand core, the main beaer of D- sand core.

Specific embodiment

Applicant is explained the specific embodiment of the application referring to attached drawing:

In order to understand the mentality of designing of applicant, applicant's more existing founding technique of attached drawing 17 and the application's is turned over The similarities and differences of sand technique, attached drawing 17 only compare on the inside of part, and founding product is in order to demould, often inside and outside all tapered, this When the product later period machining of sample, operation is there are certain difficulty, and in attached drawing 17, the left side is existing 3 founding technique of upper mold, The right is the 3 founding technique of upper mold of the application, and wherein A is the casting thin-wall part thin wall section for needing to cast out, what the two needed Theoretical cast member be it is completely the same, B be actual casting mould inner wall section line；Existing founding technique, for the side of demoulding Just, mold uses 2 ~ 5 ° of taper, and the application and theoretical cast member inside cross-sectional line are consistent, and C is Sha Xin, the application Reduce the volume of Sha Xin, in this way, the anti-significant effect that collapses, D is the main beaer of husky core, in left figure, mainly by top sand core Stress, then, the thickness low LCL of Sha Xin D also be easy to cause and collapses, and thickeies husky core, and the labour for just increasing foundry worker is strong Degree in the application, by the filling column stress of cone table, prevents Sha Xin from collapsing, in addition, on plastic cement housing also have it is certain anti- The effect of collapsing.

Applicant illustrates the mentality of designing of the application with two embodiments:

Embodiment 1: motor casing founding mold, attached drawing 9 are common squirrel-cage motor shell mechanism schematic diagrames, Embodiment 1 illustrates the structure and principle of metal hollow thin-walled parts founding mold using the squirrel-cage shell of attached drawing 9 as object, needs It is noted that it is shell that two sides end cap is also classified as by part information, but end cap and motor casing structural difference are big, end cap It cannot be hollow and thin-walled part, it does not include two sides end cap that the shell that embodiment 1 is recorded, which refers to attached part shown in Fig. 9,.

Embodiment 1 is the technical solution adopted is as follows: a kind of motor casing founding mold, motor casing founding mold packet Bracket 1, filling column 2, upper mold 3, positioning column 4, upper core model 5, lower core model 6, lower die 7, housing under housing, plastic uptake on plastic uptake are included, It is characterized in:

The filling column 2 is screwed into bracket 1, and two brackets 1 are placed into upper mold 3 and lower die 7 respectively；

The rectangular room Sha Xin is constituted on the inside of 3 left-right and front-back four sides baffle of the upper mold, for filling husky core, in upper mold 3 Lower two sides is without baffle；

The rectangular room Sha Xin is constituted on the inside of 7 left-right and front-back four sides baffle of the lower die, for filling husky core, in lower die 7 Lower two sides is without baffle；

The upper mold 3, upper core model 5, lower core model 6, lower die 7 are sequentially placed from top to bottom, and 4 positioning columns 4 is utilized to inject Location hole positioning, location hole include 4 upper mold location hole 31, the 4 upper lower core model location holes 61,4 of core model location hole 51,4 Lower die location hole 71；

Housing packs into core model parent part 53 on plastic uptake, and housing packs into lower core model parent part 63 under plastic uptake；

The bracket 1 includes cross bar 111, vertical bar 112, bracket locating ring 12, bracket threaded hole 13；

The filling column 2 includes filling column positioning side 22, filling male screw section 23, cylindrical body 21 or cone table 24.

The cross bar 111 and the formation cross in 90 ° of vertical bar 112；

The bracket locating ring 12 is circle, positioned at the intersection of cross, bracket locating ring 12 and filling column positioning Side 22 cooperates, so that the position of filling column 2 is limited, to guarantee the either lower core model parent part 63 of filling column 2 and upper core model parent part 53 Interstitial hole it is concentric, interstitial hole refers to the corresponding position of the rotor of motor；

The bracket threaded hole 13 is located at the center of bracket locating ring 12, bracket threaded hole 13 and filling male screw Section 23 cooperates, so that filling column 2 is screwed into bracket 1, reach >=filling male screw section 23 length of bracket threaded hole 13；

The filling male screw section 23 is located at the center on filling column positioning side 22；

Part is cylindrical body 21 or is cone table 24 for the filling of filling column 2, and material is gray cast iron.

The upper core model 5 includes upper core model location hole 51, upper core mold plate 52, upper core model parent part 53；

The lower core model 6 includes lower core model location hole 61, lower core mold plate 62, lower core model parent part 63；

The upper core model location hole 51 is 4, and rectangular in form is distributed in the quadrangle of core mold plate 52；

The lower core model location hole 61 is 4, and rectangular in form is distributed in the quadrangle of lower core mold plate 62, and 4 upper cores For lower 61 position of core model location hole of mould location hole 51 and 4 at corresponding relationship, pore size is identical；

The upper core mold plate 52 and lower core mold plate 62 are plate；

The upper core model parent part 53 is fixedly mounted in core mold plate 52, and lower core model parent part 63 is fixedly mounted on lower core model On plate 62；

Upper core model parent part 53 refers to that the upper part mould of motor casing, lower core model parent part 63 refer under motor casing The cross sectional shape of part mould, upper core model parent part 53 and lower 63 its upper and lower junction of core model parent part fits like a glove, upper core model The effect of parent part 53 and lower core model parent part 63 is the chamber to be formed in husky core, and the shape of chamber is exactly the motor casing cast out Shape, that is, the motor casing shape cast out, size determine by upper core model parent part 53 and lower core model parent part 63, the upper core The upper and lower position of chamber, is not necessarily referring to shape, the position of motor casing product when mould 5 and about 6 meaning of lower core model only refer to founding Up and down.

The upper mold 3 is by upper mold location hole 31, upper mold reinforcing rib 32, upper mold cross bar position 331,332 groups of upper mold vertical bar position At；

The lower die 7 is by lower die location hole 71, lower die reinforcing rib 72, lower die cross bar position 731,732 groups of lower die vertical bar position At；

The upper mold location hole 31 is 4, and rectangular in form is distributed in the quadrangle of upper mold 3；

The lower die location hole 71 is 4, and rectangular in form is distributed in the quadrangle of lower die 7, and 4 upper mold location holes 31,4 lower die location hole 71,4 upper lower 61 positions of core model location hole of core model location hole 51,4 are at corresponding relationship, pore size It is identical, the diameter of aperture=microcephaly 42；

The upper mold reinforcing rib 32 is located at the outer wall of the left-right and front-back of upper mold 3, for reinforcing the intensity of upper mold outer wall；

Described is the outer wall for the left-right and front-back that lower die reinforcing rib 72 is located at lower die 7, for reinforcing the intensity of lower die outer wall；

The upper mold cross bar position 331, lower die cross bar position 731 are 2, are located at the top of upper mold 3, lower die 7 The right and left of lower part, upper mold cross bar position 331, lower die cross bar position 731 are recessed position, are recessed the thickness of bit depth=cross bar 111 Degree is recessed outside spacing=cross bar of the width of bit width=cross bar 111,2 upper mold cross bar positions 331 or lower die cross bar position 731 111 length；

The upper mold vertical bar position 332, lower die vertical bar position 732 are 2, are located under the top of upper mold 3, lower die 7 The front and back both sides in portion, upper mold vertical bar position 332, lower die vertical bar position 732 are recessed position, are recessed the thickness of bit depth=vertical bar 112, Outside spacing=vertical bar 112 of the width of recessed bit width=vertical bar 112,2 upper mold vertical bar positions 332 or lower die vertical bar position 732 Length；

Using magnetic installation, magnetism installation refers to that there are a side in bracket position and bracket bar material for the cradling piece and bracket position Or two side be magnetic, another party can be attracted magnetically, and cradling piece is installed into corresponding branch by way of magnetic absorption Frame position, cradling piece refer to cross bar 111, vertical bar 112, and bracket position refers to upper mold cross bar position 331, upper mold vertical bar position 332, lower die cross bar Position 731, lower die vertical bar position 732.

Housing is plastic uptake product of the fingerstall on upper core model parent part 53 on the plastic uptake, the inner surface of housing on plastic uptake Interior outside and upper core model parent part 53 interior outer surface be it is identical, on plastic uptake 92 bottom of upper chamber of housing be opening side To for 92 bottom of upper chamber close to upper core mold plate 52,92 upper position of upper chamber is motor concave edge position, housing top on plastic uptake Position is closed；

Sprue 91 refers to that casting liquid enters the entrance of upper chamber 92, and sprue 91 is located at 92 top of upper chamber, sprue 91 designs are in 92 upper width the widest part of upper chamber；

Upper chamber 92 refers to the space that husky core needs to leave a blank in upper mold 3；

Upper cup room 94 refers to the recessed space that the inside and bottom surface of outer jacket surface on plastic uptake are formed, and bottom surface refers to close to upper The surface of core mold plate 52；

Housing is plastic uptake product of the fingerstall on lower core model parent part 63 under the plastic uptake, the inner surface of housing under plastic uptake Interior outside and lower core model parent part 63 interior outer surface be it is identical, under plastic uptake at the top of the lower chambers 93 of housing be opening side To close to lower core mold plate 62,92 lower position of lower chambers is motor concave edge position, housing lower part under plastic uptake at lower chambers 93 top Position is closed；

The lower chambers 93 refer to the space that husky core needs to leave a blank in lower die 7；

The lower cup room 95 refers to the recessed space that the inside and top surface of outer jacket surface under plastic uptake are formed, and top surface refers to Close to the surface of lower core mold plate 62, there is stomata 96 in lower cup room 95, and preventing air from forming air chamber influences the cast member processed production Quality, the inner surface of housing refers respectively to the table close to upper core model parent part 53, lower core model parent part 63 under housing, plastic uptake on plastic uptake Face, outer surface refer to that, close to the surface of husky core, the plastic uptake refers to the thin-walled plastic cement products processed using plastic uptake technique.

Fig. 1 and attached drawing 2 are the explosive view and three-dimensional view of motor casing founding mold,

The material for clogging column 2 is gray cast iron, filling column 2 its act on upper and lower mould be it is different, it is mainly anti-in upper mold Only husky core collapses and improves founding part Product Precision, because the position of filling column 2 is rotor position, a large amount of sand core is not supported Position needs support level just to need to thicken husky core, and this undoubtedly increases the labor intensity of foundry worker, and the presence of filling column 2 subtracts The usage amount of husky core is lacked, and has clogged column 2 and fixed by bracket, cannot glide, prevent from collapsing in this way, since the physics of gray cast iron is special Property be pyrocondensation cold expanding, after casting liquid is added, husky core temperature is increased, and hereafter, temperature gradually reduces, due to the influence expanded with heat and contract with cold, Cause product quality to decline, and clog the presence of column 2, can pyrocondensation cold expanding, in such manner, it is possible to mitigate cast member expand with heat and contract with cold it is unfavorable It influences, improves Product Precision, in lower die, clogging column 2 is conveniently stripped and improves founding Product Precision, improves founding product essence Degree is realized also with the characteristic of the pyrocondensation cold expanding of gray cast iron, it should be noted that due to the fusing point and ironcasting of gray cast iron Cast member fusing point be it is identical or very close, therefore, filling column 2 cannot directly be contacted with casting liquid, it is necessary to using husky core Isolation, since the main component of sand is silica, sand itself has stronger heat-insulating property, with adding increasing for water, Heat-insulating property reduces, and water vapour evaporation can reduce filling 2 temperature of column, and therefore, Sha Xin adds water to adversely affect the cooling of filling column 2 Less, but to cast member hardness have an impact, add water excessive, in aluminum casting processing, due to the molten liquid temperature of aluminum casting Also at 800 DEG C or more, so high temperature has very detrimental effect for the mechanical performance for clogging column 2, therefore, although aluminium Fusing point only has 660 DEG C, and still, filling column 2 can not directly be contacted with casting liquid, and the 2 temperature highest temperature of filling column after isolation is low In 300 DEG C, the mechanical performance of filling column 2 is had little effect, in such manner, it is possible to improve the quality of aluminum casting, actual product is set During meter, heat insulation layer thickness needs are controlled, to the maximum temperature for clogging column 2 be controlled at 280 ~ 300 DEG C, because of filling Thickness degree equally has an impact to cast member precision, and filled layer thickness is blocked up, and the pyrocondensation cold expanding of gray cast iron is to the precision of cast member Beneficial effect, which may weaken, even to be lost.

Embodiment 1 is motor casing, and hollow space is circle, and in machine components, hollow space is circular gold Belong to hollow and thin-walled part, referring to the mentality of designing of embodiment 1, the shape of core model parent part 53 and lower core model parent part 63 in change, just Different metal hollow thin-walled parts can be manufactured, it is attached shown in Fig. 9 for horizontal motor, the equal energy of vertical type motor, generator casing Enough thinkings according to embodiment 1 design.

Embodiment 2: hollow space is non-circular metal hollow thin-walled parts；

Hollow space is rectangular, diamond shape either obform body, and such metal hollow thin-walled parts are not common, upper core model parent part 53, lower core model parent part 63, housing is processed according to the shape of product under housing, plastic uptake on plastic uptake, change is bracket 1 and fills out Stick harness 2, bracket 1 and filling column 2 are structure as a whole, the cradling piece of bracket 1, the structure of the bracket 2 and embodiment 1 of upper mold 3 and lower die 3 It makes and does not change with matching relationship, there is no bracket locating rings 12, bracket threaded hole 13 for bracket 1；

There is no filling column positioning side 22, filling male screw section 23, cylindrical body 21 or cone tables 24 to be changed to for filling column 2 It is corresponding with its hollow partial shape, only pay attention to a bit, the inner surface distance of filling part to metal hollow thin-walled parts needs Unanimously.

Embodiment 3: the anti-mould that collapses, the anti-mould that collapses are shown in attached drawing 15 and attached drawing 16, and the anti-mould that collapses is made only for upper mold 3 to be changed Into in addition to preventing collapsing and design, other design and implementation examples 1 are identical, and the anti-mould that collapses is by the anti-mould side first 34 that collapses, the anti-mould 8 that collapses Composition, the anti-mould 8 that collapses are made of anti-collapse mould side second 86, mold mouth 87；There is the anti-mould side first 34 that collapses in the inside of upper mold 3 below, The anti-mould side first 34 that collapses is used to shelve the anti-mould 8 that collapses, anti-8 length and width dimensions of the mould=sand core length and width dimensions that collapse, and the anti-mould 8 that collapses has anti- Collapse mould while second 86 and it is anti-collapse mould while first 34 cooperate, the anti-mould that collapses is when second 86 is recessed, the recessed depth=anti- mould side first that collapses 34 thickness has mold mouth 87, mould among the anti-mould that collapses so that anti-8 bottom surface of mould of collapsing be made to be in same plane with 3 bottom surface of upper mold Tool mouth 87 is used to put into core model parent part 53, and mold mouth 87 is greater than the external dimensions of upper core model parent part 53, thus convenient upper core model Parent part 53 puts mold mouth 87 into.

Plastic uptake is a kind of plastic cement processing technology, and film is machined to thin-walled plasthetics using plastic uptake by plastic uptake, and plastic uptake is Plastic uptake technique is not discussed in detail in a kind of plastic cement processing technology of maturation, the application.

Claims (6)

1. a kind of metal hollow thin-walled parts founding mold, metal hollow thin-walled parts founding mold includes bracket (1), filling column (2), upper mold (3), positioning column (4), upper core model (5), lower core model (6), lower die (7), housing under housing, plastic uptake on plastic uptake, it is special Sign is:

The filling column (2) is screwed into bracket (1) or filling column (2) and bracket (1) is integrated construction, two brackets (1) point It is not placed into upper mold (3) and lower die (7)；

The rectangular room Sha Xin is constituted on the inside of the upper mold (3), lower die (7) left-right and front-back four sides baffle, for filling husky core, on Mould (3), lower die (7) upper and lower surface are without baffle；

The upper mold (3), upper core model (5), lower core model (6), lower die (7) are sequentially placed from top to bottom, are inserted using positioning column (4) It is positioned into location hole, location hole includes 4 upper mold location holes (31), 4 upper core model location hole (51), 4 lower core model location holes (61), 4 lower die location holes (71)；

Housing packs into core model parent part (53) on plastic uptake, and housing packs into lower core model parent part (63) under plastic uptake.

2. metal hollow thin-walled parts founding mold according to claim 1, it is characterized in that:

The bracket (1) and filling column (2) is divided into combined type and integral type, and it is circular metal that combined type, which is applicable in hollow space, Hollow and thin-walled part, integral type are applicable in all metal hollow thin-walled parts,

In combined type, bracket (1) includes cross bar (111), vertical bar (112), bracket locating ring (12), bracket threaded hole (13)；

The filling column (2) includes filling column positioning side (22), filling male screw section (23), cylindrical body (21) or cone table (24)；

The bracket locating ring (12) is circle, positioned at the intersection of cross, bracket locating ring (12) and filling column positioning Side (22) cooperation, so that the position of filling column (2) is limited, to guarantee the either lower core of filling column (2) and upper core model parent part (53) The interstitial hole of mould parent part (63) is concentric；

The bracket threaded hole (13) is located at the center of bracket locating ring (12), bracket threaded hole (13) and filling column spiral shell Line section (23) cooperation, so that filling column (2) is screwed into bracket (1), reach >=filling male screw of bracket threaded hole (13) The length of section (23)；

The filling male screw section (23) is located at the center of filling column positioning side (22)；

Part is cylindrical body (21) or is cone table (24) for filling column (2) filling, and material is gray cast iron；

In integral type, bracket (1) and filling column (2) are structure as a whole, including cross bar (111), vertical bar (112), filling column (2),

Combined type and integral type, cross bar (111) and vertical bar (112) are all formation crosses in 90 °；

The shape for clogging column (2) is corresponding with the hollow shape of metal hollow thin-walled parts, and metal hollow thin-walled zero is arrived in filling column (2) The inner surface distance of the hollow space of part needs consistent.

3. metal hollow thin-walled parts founding mold according to claim 1, it is characterized in that:

The upper core model (5) includes upper core model location hole (51), upper core mold plate (52), upper core model parent part (53)；

The lower core model (6) includes lower core model location hole (61), lower core mold plate (62), lower core model parent part (63)；

The upper core model location hole (51) is 4, and rectangular in form is distributed in the quadrangle of core mold plate (52)；

The lower core model location hole (61) is 4, and rectangular in form is distributed in the quadrangle of lower core mold plate (62), and 4 upper cores At corresponding relationship, pore size is identical for mould location hole (51) and 4 lower core model location hole (61) positions；

The upper core mold plate (52) and lower core mold plate (62) is plate；

The upper core model parent part (53) is fixedly mounted on core mold plate (52), and lower core model parent part (63) is fixedly mounted on lower core In template (62)；

Upper core model parent part (53) refers to the upper part mould of metal hollow thin-walled parts, and lower core model parent part (63) refers to metal hollow The cross sectional shape of the lower part mould of thin-walled parts, upper core model parent part (53) and lower its upper and lower junction of core model parent part (63) has been It coincide entirely, the effect of upper core model parent part (53) and lower core model parent part (63) is the chamber to be formed in husky core, and the shape of chamber is just It is the metal hollow thin-walled parts shape cast out, that is, the metal hollow thin-walled parts shape cast out, size are female by upper core model Part (53) and lower core model parent part (63) determine, the upper core model (5) and lower core model (6) chamber when meaning only refers to founding up and down Upper and lower position, be not necessarily referring to the shapes of metal hollow thin-walled parts, position up and down.

4. metal hollow thin-walled parts founding mold according to claim 1, it is characterized in that:

The upper mold (3) is by upper mold location hole (31), upper mold reinforcing rib (32), upper mold cross bar position (331), upper mold vertical bar position (332) it forms；

The lower die (7) is by lower die location hole (71), lower die reinforcing rib (72), lower die cross bar position (731), lower die vertical bar position (732) it forms；

The upper mold location hole (31) is 4, and rectangular in form is distributed in the quadrangle of upper mold (3)；

The lower die location hole (71) is 4, and rectangular in form is distributed in the quadrangle of lower die (7), and 4 upper mold location holes (31), 4 lower die location holes (71), 4 upper core model location hole (51), 4 lower core model location hole (61) positions are at corresponding relationship, Pore size is identical, the diameter of aperture=microcephaly (42)；

The upper mold reinforcing rib (32) is located at the outer wall of the left-right and front-back of upper mold (3), for reinforcing the intensity of upper mold outer wall；

Described is the outer wall for the left-right and front-back that lower die reinforcing rib (72) is located at lower die (7), for reinforcing the intensity of lower die outer wall；

The upper mold cross bar position (331), lower die cross bar position (731) are 2, are located at top, the lower die of upper mold (3) (7) the right and left of lower part, upper mold cross bar position (331), lower die cross bar position (731) are recessed position, are recessed bit depth=cross bar (111) thickness is recessed the width of bit width=cross bar (111), 2 upper mold cross bar positions (331) or lower die cross bar position (731) Outside spacing=cross bar (111) length；

The upper mold vertical bar position (332), lower die vertical bar position (732) are 2, are located at top, the lower die (7) of upper mold (3) Lower part front and back both sides, upper mold vertical bar position (332), lower die vertical bar position (732) are recessed position, be recessed bit depth=vertical bar (112) thickness is recessed the width of bit width=vertical bar (112), 2 upper mold vertical bar positions (332) or lower die vertical bar position (732) Outside spacing=vertical bar (112) length；

Using magnetic installation, magnetism installation refers to that bracket position and bracket bar material have one side or both to have for cradling piece and bracket position Magnetism, another party can be attracted magnetically, and cradling piece is installed into corresponding bracket position, cradling piece by way of magnetic absorption Refer to cross bar (111), vertical bar (112), bracket position refers to upper mold cross bar position (331), upper mold vertical bar position (332), lower die cross bar position (731), lower die vertical bar position (732).

5. metal hollow thin-walled parts founding mold according to claim 1, it is characterized in that:

Housing is the plastic uptake product of fingerstall above in upper core model parent part (53) on the plastic uptake, the inner surface of housing on plastic uptake The interior outer surface of interior outside and upper core model parent part (53) be it is identical, on plastic uptake upper chamber (92) bottom of housing be opening side To, upper chamber (92) bottom close to upper core mold plate (52), housing upper position is closed on plastic uptake；

Sprue (91) refers to that casting liquid enters the entrance of upper chamber (92), and sprue (91) is located at upper chamber (92) top, infuses Material mouth (91) is designed in upper chamber (92) upper width the widest part；

Upper chamber (92) refers to the space that husky core needs to leave a blank in upper mold (3)；

Upper cup room (94) refers to the recessed space that the inside and bottom surface of outer jacket surface on plastic uptake are formed, and bottom surface refers to close to upper core The surface of template (52)；

Housing is the plastic uptake product of fingerstall above in lower core model parent part (63) under the plastic uptake, the inner surface of housing under plastic uptake The interior outer surface of interior outside and lower core model parent part (63) is identical, is opening side at the top of the lower chambers (93) of housing under plastic uptake Close to lower core mold plate (62) at the top of to, lower chambers (93), housing lower position is closed under plastic uptake；

Lower chambers (93) refer to the space that husky core needs to leave a blank in lower die (7)；

Lower cup room (95) refers to the recessed space that the inside and top surface of outer jacket surface under plastic uptake are formed, and top surface refers to close to lower core The surface of template (62), lower cup room (95) have stomata (96), and preventing air from forming air chamber influences the cast member product processed Quality, the inner surface of housing is referred respectively to close to upper core model parent part (53), lower core model parent part (63) under housing, plastic uptake on plastic uptake Surface, outer surface refer to that close to the surface of husky core, the plastic uptake refers to be produced using the thin-walled plastic cement that plastic uptake technique processes Product.

6. metal hollow thin-walled parts founding mold according to claim 1, it is characterized in that:

The anti-mould that collapses be made of the anti-mould side first (34) that collapses, the anti-mould (8) that collapses, it is anti-collapse mould (8) by the mould Bian Yi (86) that prevents collapsing, Mold mouth (87) composition；There is the anti-mould side first (34) that collapses in the inside of upper mold (3) below, and the anti-mould side first (34) that collapses is used to shelve anti- It collapses mould (8), anti-mould (8) length and width dimensions=sand core length and width dimensions that collapse, the anti-mould (8) that collapses, which has, to be prevented collapsing mould Bian Yi (86) and prevent The mould side first (34) that collapses cooperation, anti-collapse mould Bian Yi (86) are recessed side, are recessed depth=anti- mould side first (34) that collapses thickness, To make anti-mould (8) bottom surface of collapsing be in same plane with upper mold (3) bottom surface, there are mold mouth (87), mold among the anti-mould that collapses Mouth (87) is used to put into core model parent part (53), and mold mouth (87) is greater than the external dimensions of upper core model parent part (53), thus convenient Upper core model parent part (53) puts mold mouth (87) into.