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 PDFInfo
- 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
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- China
- Prior art keywords
- frame
- rear sub
- automobile rear
- mounting seat
- groups
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
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
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.
Priority Applications (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 |
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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107521561A true CN107521561A (en) | 2017-12-29 |
Family
ID=60680623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710656146.5A Pending CN107521561A (en) | 2017-08-03 | 2017-08-03 | A kind of automobile rear sub-frame and its casting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107521561A (en) |
Cited By (4)
| 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 |
| CN114657494A (en) * | 2022-03-02 | 2022-06-24 | 襄阳华中科技大学先进制造工程研究院 | Integrated automobile front extension beam precision machining process |
| CN114799127A (en) * | 2022-03-16 | 2022-07-29 | 中国第一汽车股份有限公司 | Low-pressure metal mold casting method for integral hollow auxiliary frame |
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| 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 |
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2017
- 2017-08-03 CN CN201710656146.5A patent/CN107521561A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 (5)
| 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 |
| CN114657494A (en) * | 2022-03-02 | 2022-06-24 | 襄阳华中科技大学先进制造工程研究院 | Integrated automobile front extension beam precision machining process |
| CN114799127A (en) * | 2022-03-16 | 2022-07-29 | 中国第一汽车股份有限公司 | Low-pressure metal mold casting method for integral hollow auxiliary frame |
| CN114799127B (en) * | 2022-03-16 | 2024-04-09 | 中国第一汽车股份有限公司 | Low-pressure metal mold casting method for integral hollow auxiliary frame |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171229 |
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| RJ01 | Rejection of invention patent application after publication |