CN107521561A - A kind of automobile rear sub-frame and its casting method - Google Patents

A kind of automobile rear sub-frame and its casting method Download PDF

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Publication number
CN107521561A
CN107521561A CN201710656146.5A CN201710656146A CN107521561A CN 107521561 A CN107521561 A CN 107521561A CN 201710656146 A CN201710656146 A CN 201710656146A CN 107521561 A CN107521561 A CN 107521561A
Authority
CN
China
Prior art keywords
frame
rear sub
automobile rear
mounting seat
groups
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.)
Pending
Application number
CN201710656146.5A
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Chinese (zh)
Inventor
王聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI VIE AUTOMOBILE PARTS Co Ltd
Original Assignee
ANHUI VIE AUTOMOBILE PARTS Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ANHUI VIE AUTOMOBILE PARTS Co Ltd filed Critical ANHUI VIE AUTOMOBILE PARTS Co Ltd
Priority to CN201710656146.5A priority Critical patent/CN107521561A/en
Publication of CN107521561A publication Critical patent/CN107521561A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings

Abstract

The invention discloses a kind of automobile rear sub-frame and its casting method of automobile frame technical field, include the liner plate mounting seat of two groups of castings being symmetrical set, the upper and lower ends of the liner plate mounting seat are provided with mounting hole, front beam is connected between liner plate mounting seat described in two groups, integrally formed with arch spandrel girder between base described in two groups, the top of the rear cross beam is provided with connecting seat, a kind of automobile rear sub-frame casting method, comprises the following steps:Mold Making, metal melting, model cast and deburring polishing, the present invention uses metal casting technique, production efficiency is high, has gas permeability and deformability, improves the metal strength of casting, designed using the subframe of optimization, crossbeam is divided into front beam and rear cross beam, improves the intensity of subframe, avoids cracking phenomena caused by long-term use, simultaneously will arch spandrel girder be set on rear cross beam, increases the weight capacity of crossbeam.

Description

A kind of automobile rear sub-frame and its casting method
Technical field
The present invention relates to automobile frame technical field, specially a kind of automobile rear sub-frame and its casting method.
Background technology
Subframe can regard the skeleton of tandem axle as, be the part of tandem axle.Subframe is not complete Vehicle frame, tandem axle, the support of suspension are simply supported, vehicle bridge, suspension is connected again with positive vehicle frame by it, be traditionally referred to as " subframe ".The effect of subframe is barrier vibration and noise, reduces it and is directly entered compartment, so appearing in luxurious car mostly On offroad vehicle, some automobiles also load onto subframe for engine.Conventional without the monocoque body of subframe, its suspension is direct It is connected with vehicle body steel plate.Therefore the suspension rocker arm body of tandem axle is all loose mail, not assembly.Subframe be born with Afterwards, front and rear suspension first can be assembled on subframe, form an axle assembly, this assembly is together then installed into car again With.
Existing automobile rear sub-frame major part mould is complicated, intensity crosses design, heavier-weight, is entered using welding procedure Row assembling, it is easily cracked when being installed to automobile chassis, the service life of automobile chassis is influenceed, therefore, we have proposed A kind of automobile rear sub-frame and its casting method come into operation, to solve the above problems.
The content of the invention
It is an object of the invention to provide a kind of automobile rear sub-frame and its casting method, to solve in above-mentioned background technology Existing automobile rear sub-frame major part mould complexity, the intensity proposed crosses design, heavier-weight, is carried out using welding procedure Assembling, easily cracked when being installed to automobile chassis, the problem of influenceing the service life of automobile chassis.
To achieve the above object, the present invention provides following technical scheme:A kind of automobile rear sub-frame, including two groups or so pairs Claim the liner plate mounting seat of casting set, the upper and lower ends of the liner plate mounting seat are provided with mounting hole, lining described in two groups Front beam is connected between plate mounting seat, positioning hole is provided with the front beam, rear cross beam is installed below the front beam, And rear cross beam is between two groups of liner plate mounting seats, the rear cross beam includes two groups of bases, between base described in two groups integrally into Type has arch spandrel girder, and the top of the rear cross beam is provided with connecting seat.
Preferably, the left and right ends of the front beam are symmetrically welded with mounting seat, and the inner chamber of the mounting seat is provided with screw thread Hole, the front beam are provided with rib, and the left and right ends of the rib are equipped with bearing pin neck.
Preferably, the bearing pin neck is opened in the surface of front beam by punch forming, and the depth of bearing pin neck is 3-5 Millimeter.
A kind of automobile rear sub-frame casting method, comprises the following steps:Mold Making, metal melting, model are poured into a mould and repaiied Side is polished, and the described automobile rear sub-frame casting method is as follows:
S1:Mold Making:Produced in the loyal doping diluent of roughing sand and binding agent with some strength, gas permeability and deformability Molding sand mould;
S2:Metal melting:Metallic aluminium is put into heater and is heated to 680 DEG C, it is melted into mobility and is filled type The liquid metal of ability;
S3:Model is poured into a mould:The metal liquid melted in step S2 is slowly poured into by sprue cup, straight channel, cross gate and interior poured In the running gate system of road composition, it is ensured that liquid metals can steadily and reasonably be full of die cavity;
S4:Deburring is polished:After casting cooling after to be cast, sand mold mould is broken into pieces, deburring polishing is carried out to metal aluminium casting Processing.
Preferably, in the step S1, roughing sand is quartz sand or Lip river iron ore, and diluent is water-soluble diluent, is bonded Agent is clay and resin compound.
Preferably, in the step S3, during casting solidification, being retracted between position of rising head and casting should have unobstructed Feeding channel, and rising head goes out should larger volume, and the body for ensureing to have enough metallic aluminium liquid supplement cast-internals shrinks.
Preferably, in the step S3, when pouring into a mould at mounting hole, the placing core in sand mold mould, mounting hole is ensured With higher round and smooth degree.
Preferably, in the step S4, when carrying out deburring polishing, first the burr of mounting hole inner ring is entered using sander Row polishing, then carries out deburring polishing by the burr on liner plate mounting seat periphery.
Compared with prior art, the beneficial effects of the invention are as follows:The present invention uses metal casting technique, is disposably cast as Type, reusable, production efficiency is high, has gas permeability and deformability, the metal strength of casting is improved, using the secondary car of optimization Meter is set up, crossbeam is divided into front beam and rear cross beam, improves the intensity of subframe, avoids cracking caused by long-term use Phenomenon, while will arch spandrel girder be set on rear cross beam, increase the weight capacity of crossbeam.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is front view of the present invention;
Fig. 3 is front cross beam structure schematic diagram of the present invention.
In figure:1 liner plate mounting seat, 2 mounting holes, 3 front beams, 31 mounting seats, 32 screwed holes, 33 ribs, 34 bearing pin cards Groove, 4 positioning holes, 5 rear cross beams, 7 arch spandrel girders, 8 connecting seats.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme:A kind of automobile rear sub-frame, including two groups symmetrical The liner plate mounting seat 1 of the casting of setting, the upper and lower ends of the liner plate mounting seat 1 are provided with mounting hole 2, lining described in two groups Front beam 3 is connected between plate mounting seat 1, is provided with positioning hole 4 on the front beam 3, after the lower section of the front beam 3 is provided with Crossbeam 5, and rear cross beam 5, between two groups of liner plate mounting seats 1, the rear cross beam 5 includes two groups of bases 6, base 6 described in two groups Between integrally formed with arch spandrel girder 7, the top of the rear cross beam 5 be provided with connecting seat 8.
Wherein, the left and right ends of the front beam 3 are symmetrically welded with mounting seat 31, and the inner chamber of the mounting seat 31 is provided with spiral shell Pit 32, the front beam 3 are provided with rib 33, and the left and right ends of the rib 33 are equipped with bearing pin neck 34, described Bearing pin neck 34 is opened in the surface of front beam 3 by punch forming, and the depth of bearing pin neck 34 is 3-5 millimeters.
Present invention also offers a kind of automobile rear sub-frame casting method, comprise the following steps:Mold Making, metal melt Melt, model is poured into a mould and deburring polishing, the described automobile rear sub-frame casting method are as follows:
S1:Mold Making:Produced in the loyal doping diluent of roughing sand and binding agent with some strength, gas permeability and deformability Molding sand mould, roughing sand is quartz sand or Lip river iron ore, and diluent is water-soluble diluent, and binding agent is that clay and resin mix Thing;
S2:Metal melting:Metallic aluminium is put into heater and is heated to 680 DEG C, it is melted into mobility and is filled type The liquid metal of ability;
S3:Model is poured into a mould:The metal liquid melted in step S2 is slowly poured into by sprue cup, straight channel, cross gate and interior poured Road composition running gate system in, it is ensured that liquid metals can steadily and reasonably be full of die cavity, during casting solidification, rising head and Being retracted between position for casting should have unobstructed Feeding channel, and rising head goes out should larger volume, and guarantee has enough gold The body for belonging to aluminium liquid body supplement cast-internal shrinks, and when pouring into a mould at mounting hole 2, the placing core in sand mold mould, ensures installation Hole 2 has higher round and smooth degree;
S4:Deburring is polished:After casting cooling after to be cast, sand mold mould is broken into pieces, deburring polishing is carried out to metal aluminium casting Processing, the burr of the inner ring of mounting hole 2 when carrying out deburring polishing, first polished using sander, then installed liner plate The burr on 1 periphery of seat carries out deburring polishing.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (8)

1. a kind of automobile rear sub-frame, include the liner plate mounting seat of two groups of castings being symmetrical set(1), its feature exists In:The liner plate mounting seat(1)Upper and lower ends be provided with mounting hole(2), liner plate mounting seat described in two groups(1)Between be connected with Front beam(3), the front beam(3)On be provided with positioning hole(4), the front beam(3)Lower section rear cross beam is installed(5), and Rear cross beam(5)Positioned at two groups of liner plate mounting seats(1)Between, the rear cross beam(5)Including two groups of bases(6), base described in two groups (6)Between integrally formed with arch spandrel girder(7), the rear cross beam(5)Top be provided with connecting seat(8).
A kind of 2. automobile rear sub-frame according to claim 1, it is characterised in that:The front beam(3)Left and right ends It is symmetrically welded with mounting seat(31), the mounting seat(31)Inner chamber be provided with screwed hole(32), the front beam(3)It is provided with and adds Strong portion(33), the rib(33)Left and right ends be equipped with bearing pin neck(34).
A kind of 3. automobile rear sub-frame according to claim 2, it is characterised in that:The bearing pin neck(34)Pass through punching press Shaping is opened in front beam(3)Surface, and bearing pin neck(34)Depth be 3-5 millimeters.
4. a kind of automobile rear sub-frame casting method, comprises the following steps:Mold Making, metal melting, model cast and deburring Polishing, it is characterised in that:The described automobile rear sub-frame casting method is as follows:
S1:Mold Making:Produced in the loyal doping diluent of roughing sand and binding agent with some strength, gas permeability and deformability Molding sand mould;
S2:Metal melting:Metallic aluminium is put into heater and is heated to 680 DEG C, it is melted into mobility and is filled type The liquid metal of ability;
S3:Model is poured into a mould:The metal liquid melted in step S2 is slowly poured into by sprue cup, straight channel, cross gate and interior poured In the running gate system of road composition, it is ensured that liquid metals can steadily and reasonably be full of die cavity;
S4:Deburring is polished:After casting cooling after to be cast, sand mold mould is broken into pieces, deburring polishing is carried out to metal aluminium casting Processing.
A kind of 5. automobile rear sub-frame casting method according to claim 4, it is characterised in that:It is former in the step S1 Sand is quartz sand or Lip river iron ore, and diluent is water-soluble diluent, and binding agent is clay and resin compound.
A kind of 6. automobile rear sub-frame casting method according to claim 4, it is characterised in that:In the step S3, During casting solidification, being retracted between position for rising head and casting should have unobstructed Feeding channel, and rising head go out to have it is larger Volume, the body for ensureing to have enough metallic aluminium liquid supplement cast-internals shrink.
A kind of 7. automobile rear sub-frame casting method according to claim 4, it is characterised in that:In the step S3, Pour into a mould mounting hole(2)During place, the placing core in sand mold mould, ensure mounting hole(2)With higher round and smooth degree.
A kind of 8. automobile rear sub-frame casting method according to claim 4, it is characterised in that:In the step S4, When carrying out deburring polishing, first using sander by mounting hole(2)The burr of inner ring is polished, then by liner plate mounting seat(1) The burr on periphery carries out deburring polishing.
CN201710656146.5A 2017-08-03 2017-08-03 A kind of automobile rear sub-frame and its casting method Pending CN107521561A (en)

Priority Applications (1)

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CN201710656146.5A CN107521561A (en) 2017-08-03 2017-08-03 A kind of automobile rear sub-frame and its casting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710656146.5A CN107521561A (en) 2017-08-03 2017-08-03 A kind of automobile rear sub-frame and its casting method

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Publication Number Publication Date
CN107521561A true CN107521561A (en) 2017-12-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113320344A (en) * 2021-07-19 2021-08-31 卡奔碳纤维技术(东莞)有限公司 Manufacturing method of integrally formed hovercar
CN113441685A (en) * 2021-07-02 2021-09-28 安徽合力股份有限公司合肥铸锻厂 Tractor frame casting system and casting process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2093131A2 (en) * 2008-02-22 2009-08-26 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Sub-frame for the rear axle of a motor vehicle
CN104923727A (en) * 2015-05-15 2015-09-23 中国航空工业集团公司北京航空材料研究院 Sand mould casting method of titanium or titanium alloy cast with special-shape inner hole
CN205615584U (en) * 2016-04-28 2016-10-05 上海汇众汽车制造有限公司 Car aluminum alloy sub vehicle frame
CN106734955A (en) * 2016-12-22 2017-05-31 上海爱仕达汽车零部件有限公司 A kind of aluminium alloy steering gear housing casting process
CN106925756A (en) * 2017-02-23 2017-07-07 中国第汽车股份有限公司 A kind of low-pressure casting preparation method of aluminum alloy auxiliary vehicle frame
CN206356535U (en) * 2017-01-10 2017-07-28 重庆长安汽车股份有限公司 A kind of running gate system cast for integrated exhaust manifolds cylinder head

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2093131A2 (en) * 2008-02-22 2009-08-26 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Sub-frame for the rear axle of a motor vehicle
CN104923727A (en) * 2015-05-15 2015-09-23 中国航空工业集团公司北京航空材料研究院 Sand mould casting method of titanium or titanium alloy cast with special-shape inner hole
CN205615584U (en) * 2016-04-28 2016-10-05 上海汇众汽车制造有限公司 Car aluminum alloy sub vehicle frame
CN106734955A (en) * 2016-12-22 2017-05-31 上海爱仕达汽车零部件有限公司 A kind of aluminium alloy steering gear housing casting process
CN206356535U (en) * 2017-01-10 2017-07-28 重庆长安汽车股份有限公司 A kind of running gate system cast for integrated exhaust manifolds cylinder head
CN106925756A (en) * 2017-02-23 2017-07-07 中国第汽车股份有限公司 A kind of low-pressure casting preparation method of aluminum alloy auxiliary vehicle frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113441685A (en) * 2021-07-02 2021-09-28 安徽合力股份有限公司合肥铸锻厂 Tractor frame casting system and casting process
CN113320344A (en) * 2021-07-19 2021-08-31 卡奔碳纤维技术(东莞)有限公司 Manufacturing method of integrally formed hovercar

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Application publication date: 20171229

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