CN209700786U - A kind of lightweight aluminium alloy fore sub frame - Google Patents

Abstract

The utility model relates to the Design of Auto Parts manufacturing field, specially a kind of lightweight aluminium alloy fore sub frame.A kind of lightweight aluminium alloy fore sub frame is provided, the utility model creation aggregation degree is close, and demand mold is few, and production process is few, and component assembling is convenient；Global facility is few, and component be all integrated form and main body integrally casting.Including subframe mainboard, subframe lower plate, the subframe mainboard includes main beam, lower beam, curb girder, laterally sets up individual lower beam in the tail end of curb girder；Main beam, lower beam, the curb girder cross section structure of the subframe mainboard are all the domes of Qian or ∩ character, and setting forms arch chamber downward, the partition support chip for also setting up several interconnections in the arch chamber or being attached with the side seal outer wall of arch chamber, arch chamber is divided on several to have by partition support chip pushes up bottomless lid-like chamber.

Description

A kind of lightweight aluminium alloy fore sub frame

Technical field

The utility model relates to the Design of Auto Parts manufacturing field, specially a kind of lightweight aluminium alloy fore sub frame.

Background technique

The highest metal of content is aluminium in the earth's crust, and world's alumina ore reserves is 23,000,000,000 t, and reserves basis is 28,000,000,000 tons, Middle bauxite resource is relatively abundanter, and the utilization of all aluminium is more and more in the modern times, in automotive field such as engine, covers Skin, appearance, inside gadget largely utilize, so furthermore aluminium or the now relatively high metal of the rate of recovery, are easier than steel, iron Recycling is the metal of a kind of " cleaning ", and it is higher than steel that automobile scraps rear utilization rate again, and cost recovery is low, in the energy and environment In the case that problem has become mankind's focus of attention, automobile production is had become to reach energy-saving and emission-reduction by reducing vehicle weight The important process of enterprise.

Subframe is common in the chassis of sports car or high-end vehicle, can weaken road surface shake by subframe It moves and is impacted to vehicle body bring, improve the coupling stiffness of suspension, improve comfort and stability in vehicle traveling process, Show the traveling on chassis more sturdy compact.And running car, at various road surfaces, suspension can cause various punchings to vehicle body It hits, various deformation will be brought because of unbalance stress over time, but under the action of subframe, so that it may be born such as instead of vehicle body The frame distortions situations such as bending load, non-horizontal twisting, transverse curvature and horizontal rhombic twisting, promote vehicle body anti-twisting property, In It but will be stressed directly when colliding, to improve complete automobile collision security performance.In addition, engine can also be reduced by subframe With noise brought by road shock, to reduce noise level in automobile cabin.

Traditional subframe is the form that steel plate metal plate punching welds again, its main feature is that technical maturity, at low cost, but itself Biggish weight is had, automobile fuel ecomomy performance is influenced.Related experiment shows 10% weight of loss of weight every for fuel vehicle automobile Amount, oil consumption decline 6% ~ 8%, discharge amount decline 4%.For new energy vehicle, cruising ability then increases 5%-8%.Meanwhile automobile light weight The specific power of automobile will directly be improved by changing, and improve the power performance of automobile.Therefore, automotive light weight technology technology is that oil is effectively reduced Consumption reduces one of discharge and the important technique measure of promotion safety.

With the light-weighted demand of vehicle, aluminum alloy auxiliary vehicle frame comes into being as the substitute of iron subframe, aluminium alloy Material has the characteristics that density is small, formability is good, corrosion-resistant, function admirable, has become the important way of automobile lightweight Diameter.But the research and development due to alloy product and high production cost go out that steel subframe is many, and price can not have always been high any more, be allowed to There is insoluble contradictions between lightweight.

Summary of the invention

The purpose offer of the utility model design overcomes the deficiencies of the prior art and provide secondary vehicle before a kind of lightweight aluminium alloy Frame, the invention aggregation degree is close, and demand mold is few, and production process is few, and component assembling is convenient；Global facility is few, and portion Part be all integrated form and main body integrally casting.

The utility model is realized by following technical proposal: a kind of lightweight aluminium alloy fore sub frame, including secondary vehicle Frame mainboard, subframe lower plate, subframe lower plate are the drawing quality steel sheet of the planar structure of ferroalloy material, and fitting is arranged in subframe The lower section of mainboard, subframe mainboard are aluminium alloy cast structure plate；Wherein: the subframe mainboard include main beam, lower beam, Curb girder, three in one moulding are cast as square shape shape structure or main beam and curb girder and are integrally shaped as Qian character shape, then exist The tail end of curb girder laterally sets up individual lower beam；Main beam, lower beam, the curb girder cross section structure of the subframe mainboard be all The domes of Qian or ∩ character, and downward setting form arch chamber, also set up in the arch chamber it is several interconnection or and The partition support chip that the side seal outer wall of arch chamber is attached, arch chamber is divided on several by partition support chip has top bottomless Lid-like chamber；

A car body connecting plate is provided in upper and lower parallel each moulding outward at the beneath side of the curb girder；Car body connecting plate Protrusion setting height is higher than subframe mainboard bottom plane, and the subframe lower plate is connected in matching car body connecting plate in vehicle body Lower plate side card notch is provided in plate, after lower plate side card notch is fitted in the setting of subframe mainboard bottom, the side of lower plate side card notch Edge and car body connecting plate split all seal the arch chamber of subframe mainboard bottom from bottom；

The arch is intracavitary to be additionally provided with turning machine link block, and spiral shell is arranged in partition support chip and partition support chip intervening portion Pipe；Connecting screw hole is arranged in the screwed pipe setting position subframe lower plate punching press for matching subframe mainboard, inserts in connecting screw hole and screwed pipe Enter bolt the subframe mainboard at top and subframe lower plate link together.

Goat's horn pipe is set as preferred subframe mainboard two sides top position, goat's horn pipe and subframe mainboard are integrally moulded Shape.

It is arranged in screwed pipe saddle as the preferably described screwed pipe, screwed pipe saddle and subframe mainboard one moulding, structure are Round or splayed, 1 screwed pipe of each intracardiac setting of circular shaft, highly consistent with subframe mainboard interfacial level, width is screwed pipe At least 3 times of pore diameter.Thick and solid screwed pipe saddle firm and subframe mainboard can connect after bolt, screw etc. are attached It connects in one, endurance and firmness are big.

It include mainboard emulsion sheet portion and corner card division, the two one moulding, corner card as the preferred subframe lower plate Portion is integrally extended in front of mainboard emulsion sheet portion and oblique at least 5 degree settings, thus corner card division and mainboard emulsion sheet portion It will form lower plate side card notch in side.

Bottom as preferred mainboard emulsion sheet portion is laterally additionally provided with shelves moulding before being spirally connected of transition and also prolongs Stretch and wrap on front side of entire corner card division, subframe lower plate adds be spirally connected before after shelves moulding length be greater than subframe upper plate.

Turning machine mounting base is arranged in surface as the preferably described main beam center setting front projection main beam, as matching Setting cavity screw-jointing seat and surface screw-jointing seat in turning machine mounting base match the position of cavity screw-jointing seat and the setting of surface screw-jointing seat It sets, subframe lower plate is spirally connected pressure-bearing boss in corresponding position protrusion setting cavity and surface is spirally connected pressure-bearing boss.This pressure-bearing knot Structure can change stress source, enable pressure-bearing rounded dispersion at pressure-bearing platform, rather than downwardly projecting, allow deformation of bottom.

Setting shape as the preferably described partition support chip is V-shape or X-shape.Structure is more stable.

Compared with prior art, the present invention has the beneficial effects that using aluminium alloy and steel plate, casting and punching press phase Combined process, casting body is tight by bolt phase mutual connection with steel substrate, that is, it can reach the purpose for reducing weight improving performance, It also avoids casting brought cost problem by aluminum alloy hollow completely simultaneously.Bolted structure can be in automobile report simultaneously The advantages of passing through disassembled simply after useless, quickly recycling, resource reutilization can be enabled aluminum alloy to；Light-weight, process is few, and ontology uses Internal structure is completed by sand mold in low pressure casting, inner cavity, and outer surface is metal mold, machines rigging position, size after blank molding Precision is high, and with subframe lower plate come complete gluing, sealing, inside can not have to arrange for inner cavity, and directly built-in processing completely is closely sealed Degree is very high, and can form the cavity body structure of completion, more has integrality than the lower no backplane technology of the prior art, pastes It closes various parts setting position and corresponding boss, projection seat structure is set, there is stress dispersion and bottom load-bearing effect.Bottom connecting plate It for aluminium pressed sheet, is connected by screw bolts in main body, welding process, possesses thick and solid turning machine link block and screwed pipe saddle jail Soundness is very big；Welding blocking can be carried out in front by possessing shelves moulding before being spirally connected, and place and the welding because of iron and aluminium is used for a long time Defective situation further strengthens welding performance and prevents from being detached under the prior art.One wide V-shaped of subframe medium design Or the partition support chip of X-shape can also be divided into several chambers, these chambers can corresponding receiving correspondence for can be carried out support The stress and weight for component or automobile the carrying position that position installs additional.

Detailed description of the invention

Fig. 1 is this overall structure figure.

Fig. 2 is subframe mainboard and subframe lower plate installation diagram.

Fig. 3 is subframe lower plate structure figure.

Fig. 4 is global sections figure.

Fig. 5 is subframe mainboard view.

Fig. 6 is subframe lower plate overlooking structure figure.

Specific embodiment

Below by embodiment, in conjunction with attached drawing, preferred specific description is used as to the technical solution of the utility model:

It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to It is the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from being then description if it is description shell cavity configuration The direction of enclosure interior and hull outside, the invention or its geometric center of specific component.

Embodiment 1, a kind of lightweight aluminium alloy fore sub frame as shown in Figure 1, including subframe mainboard (1), subframe Lower plate (2), first have to be illustrated be subframe mainboard (1), subframe lower plate (2) is can be with a kind of single combination of material Infrastructure product, the present embodiment are limited to the group of aluminum alloy material subframe mainboard (1) and aluminum alloy material subframe lower plate (2) It closes, if it is double materials, then the present embodiment is limited to aluminum alloy material subframe mainboard (1) and ferroalloy material subframe lower plate (2) combination；

In order to further carry out durability degree and light-weighted combination, the subframe lower plate (2) of recommendation this product is here The drawing quality steel sheet of the planar structure of ferroalloy material, subframe mainboard (1) are aluminium alloy cast structure, this ferroalloy material The lower section of the subframe mainboard (1) of aluminium alloy is arranged in the drawing quality steel sheet fitting of planar structure；

Reach and combine technique with punching press with aluminium alloy with steel plate, casting, casting body and steel substrate are passed through into bolt Phase mutual connection is tight, that is, can reach the purpose for reducing weight improving performance；

Wherein: the subframe mainboard (1) includes main beam (1a), lower beam (2a), curb girder (3), three in one moulding It is cast as square shape shape structure or main beam (1a) and curb girder (3) is integrally shaped as the character shape of falling Qian, then in the tail of curb girder It laterally sets up individual lower beam (2a) and is closed in end；Here we, thus can be in as shown in Figure 1, using the latter Centre forms the chamber frame of loss of weight, and forms the necessary whole mouth word structure of the prior art on the whole again；

Main beam (1a), lower beam (2a), curb girder (3) cross section structure of the subframe mainboard (1) are all Qian or ∩ word The domes of symbol, and setting forms arch chamber (5) downward, that is, will form a kind of lid-like, such subframe mainboard (1) internal cavity structures as the prior art will be formed with the subframe lower plate (2) of plate；Inner cavity with subframe lower plate come Complete gluing, sealing, inside can not have to arrange, and directly built-in processing completely, adaptation is very high, and can form completion Cavity body structure, more there is integrality than the lower no backplane technology of the prior art；

As shown in figure 3, also setting up several interconnections or the side seal outer wall with arch chamber (5) in the arch chamber (5) (6) the partition support chip (7) being attached, arch chamber (5) is divided on several to have by partition support chip (7) pushes up bottomless cover shape Structural lumen (8)；This disjunction structure is mainly two purposes, and 1 is the arch knot separated inside support chip (7) energy cross-brace Structure, 2 be such as above situation and as shown in figure 3, the arch chamber (5) of entire subframe mainboard (1) is divided into each triangle, four The lid-like chamber (8) of side shape, trapezium structure, these lid-like chambers (8) can be formed individual stress distribution area and Support, and connecting hole and connecting tube, that is, mounting base described below and screw-jointing seat itself is being provided, because this These mounting bases of body and screw-jointing seat are very thick and solid, can be in the internal shape of entire arch chamber (5) after partition support chip (7) structure is added At various reticular structures, so as to all support corresponding construction weight in various pieces, so as to reinforce the knot of aluminium alloy Structure intensity, and be the concentration ability for a little enhancing stress with these mounting bases and screw-jointing seat；Namely secondary vehicle described in goal of the invention The partition support chip of one wide V-shaped of frame medium design or X-shape is used to can be carried out support, can also be divided into several chambers, this A little chambers corresponding can bear the stress and weight of the component that corresponding position installs additional or automobile carrying position.

As shown in Figures 3 and 4, a vehicle is provided in (8) outside upper and lower parallel each moulding at the beneath side of the curb girder (3) Body connecting plate (9)；Car body connecting plate (9) protrusion setting height is higher than subframe mainboard (1) bottom plane, the subframe lower plate (2) in matching car body connecting plate (9), lower plate side card notch (10), lower plate side card notch (10) is provided in car body connecting plate (9) After being fitted in the setting of subframe mainboard (1) bottom, the edge of lower plate side card notch (10) and car body connecting plate (9) split will be secondary The arch chamber (5) of vehicle frame mainboard (1) bottom is all sealed from bottom；And car body connecting plate (9) will form can also be naturally formed bottom Portion has two layers, the cavity body structure for the side opening that one layer of top, that is, 3 downside of Fig. 1 label and the pointed place of Fig. 2 mark 8, this Kind notch is the service of vehicle body connection frame；

It is additionally provided with turning machine link block (11) in the arch chamber (5), partition support chip (7) and partition support chip (7) Screwed pipe (12) are arranged in intervening portion；Screwed pipe (12) setting position subframe lower plate (2) punching press for matching subframe mainboard (1) is arranged Insertion bolt will be under the subframe mainboard (1) and subframe at top in connecting screw hole (13), connecting screw hole (13) and screwed pipe (12) Plate (2) links together.(subframe mainboard, subframe lower plate are pasted up and down in various Screw hole structures namely as shown in Figure 3,4 Setting is closed, these screw holes of their hollow outs setting can be aligned) the whole bolt fastening of bolt progress is all added, reach welding work It is very big to possess thick and solid turning machine link block and screwed pipe saddle firmness for sequence；Casting body and steel substrate are passed through into bolt Phase mutual connection is tight, that is, can reach the purpose for reducing weight improving performance, and welding blocking can be carried out in front by possessing shelves moulding before being spirally connected, It places and is used for a long time because defective situation further strengthens welding performance and anti-anti-avulsion under the welding prior art of iron and aluminium From..

As preferably described subframe mainboard (1) two sides top position setting goat's horn pipe (14), goat's horn pipe (14) and secondary vehicle Frame mainboard (1) one moulding.The goat's horn pipe (14) of integrated moulding can save the making step of additional production goat's horn pipe, technique, when Between.

As preferably described screwed pipe (12) setting in screwed pipe saddle (15), screwed pipe saddle (15) and subframe mainboard (1) Integrated moulding, structure are round or splayed, and 1 screwed pipe of each intracardiac setting of circular shaft is highly high with subframe mainboard (1) interface Degree is consistent, and width is at least 3 times of screwed pipe (9) pore diameter.Thick and solid screwed pipe saddle (15) can be connected in bolt, screw etc. Firm and subframe mainboard (1) is connected to one after connecing, and endurance and firmness are big.

It include mainboard emulsion sheet portion (19) and corner card division (21), the two one as the preferred subframe lower plate (2) Moulding, corner card division (21) are integrally extended in front of mainboard emulsion sheet portion (12) and oblique at least 5 degree settings, thus corner Card division (21) and mainboard emulsion sheet portion (12) will form lower plate side card notch (10) in side.

Bottom as preferred mainboard emulsion sheet portion (19) is laterally additionally provided with shelves moulding before being spirally connected of transition (22) and also extend and wrap on front side of entire corner card division (21), subframe lower plate (2) adds be spirally connected before shelves moulding (22) length afterwards Greater than subframe upper plate (1), after subframe lower plate (2) and subframe mainboard (1) split, it is this be spirally connected before shelves moulding be it is convex its Mainboard emulsion sheet portion (19) surface, and as illustrated in fig. 1 and 2, the front length of subframe upper plate (2), which is not equal to, extends to spiral shell Shelves moulding position before connecing, but and before being spirally connected shelves moulding close in this way by under bolted subframe upper plate (1) and subframe Plate (2) is if to will be by shelves moulding (22) before being spirally connected of this one spline structure of front chimb if encountering the strength pushed forward It stops；And combined if it is two kinds of materials and need to weld, this structure can increase the contact surface of welding after the completion of split, And formed before one kind to the effect of protection soldered.

As surface setting turning machine mounting base (15) for selecting the main beam (1a) center setting front projection main beam, make For setting cavity screw-jointing seat (16) and surface screw-jointing seat (17) in matching turning machine mounting base (15), match cavity screw-jointing seat (16) With the position of surface screw-jointing seat (17) setting, subframe lower plate (2) is spirally connected pressure-bearing boss in corresponding position protrusion setting cavity (19) and surface is spirally connected pressure-bearing boss (20).This bearing structure can change stress source, enable the pressure-bearing to be at pressure-bearing platform Circular dispersion, rather than downwardly projecting, allows deformation of bottom.

Setting shape as preferably described partition support chip (7) is V-shape or X-shape.Structure can more stable strong, And it is simple.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (7)

1. a kind of lightweight aluminium alloy fore sub frame, including subframe mainboard, subframe lower plate, the fitting setting of subframe lower plate exists The lower section of subframe mainboard, it is characterized in that: the subframe mainboard includes main beam, lower beam, curb girder, three in one moulding casting It causes square shape shape structure or main beam and curb girder to be integrally shaped as Qian character shape, then laterally sets up list in the tail end of curb girder Only lower beam；Main beam, lower beam, the curb girder cross section structure of the subframe mainboard are all the arch knot of Qian or ∩ character Structure, and setting forms arch chamber downward, and several interconnections or the side seal outer wall with arch chamber are also set up in the arch chamber The partition support chip being attached, arch chamber is divided on several to have by partition support chip pushes up bottomless lid-like chamber；Institute It states outside upper and lower parallel each moulding at the beneath side of curb girder and a car body connecting plate is provided；The arch is intracavitary to be additionally provided with Screwed pipe is arranged in turning machine link block, partition support chip and partition support chip intervening portion；Match the screwed pipe setting of subframe mainboard Connecting screw hole is arranged in position subframe lower plate punching press, and bolt is inserted into connecting screw hole and screwed pipe by the subframe mainboard and pair at top Vehicle frame lower plate links together.

2. a kind of lightweight aluminium alloy fore sub frame according to claim 1, it is characterized in that: subframe mainboard two sides Goat's horn pipe, goat's horn pipe and subframe mainboard one moulding is arranged in top position.

3. a kind of lightweight aluminium alloy fore sub frame according to claim 1, it is characterized in that: the screwed pipe is arranged in screwed pipe In saddle, screwed pipe saddle and subframe mainboard one moulding, structure are round or splayed, 1 spiral shell of each intracardiac setting of circular shaft Pipe, highly consistent with subframe mainboard interfacial level, width is at least 3 times of screwed pipe pore diameter.

4. a kind of lightweight aluminium alloy fore sub frame according to claim 1, it is characterized in that: the subframe lower plate includes Mainboard emulsion sheet portion and corner card division, the two one moulding, corner card division are integrally extended in front of mainboard emulsion sheet portion simultaneously Oblique at least 5 degree settings, thus corner card division and mainboard emulsion sheet portion will form lower plate side card notch in side.

5. a kind of lightweight aluminium alloy fore sub frame according to claim 4, it is characterized in that: mainboard emulsion sheet portion Bottom is laterally additionally provided with before being spirally connected of transition shelves moulding and also extends and wraps on front side of entire corner card division, and subframe lower plate adds If length is greater than subframe upper plate after shelves moulding before being spirally connected.

6. a kind of lightweight aluminium alloy fore sub frame according to claim 1, it is characterized in that: the main beam center is arranged Turning machine mounting base is arranged in the surface of raised main beam, as setting cavity screw-jointing seat and surface spiral shell in matching turning machine mounting base Joint chair, matches the position of cavity screw-jointing seat and the setting of surface screw-jointing seat, and cavity spiral shell is arranged in corresponding position protrusion in subframe lower plate It connects pressure-bearing boss and surface is spirally connected pressure-bearing boss.

7. a kind of lightweight aluminium alloy fore sub frame according to claim 1, it is characterized in that: the partition support chip is set Setting shape is V-shape or X-shape.