CN102963422B - There is the vehicle support deck of the interlock feature for connecting differing materials - Google Patents

Abstract

The present invention relates to the method that processing vehicle frame always becomes. Some methods disclosed are included in the interconnecting member with the first material component and have and form bolt and socket setting between the crossbeam of the 2nd material component; Interconnecting member and beam part are arranged a position through bolt and socket and connect; By in interconnecting member and crossbeam insertion longeron; And in another position, interconnecting member is soldered to longeron.

Description

There is the vehicle support deck of the interlock feature for connecting differing materials

Technical field

The present invention relates to the vehicle support deck with the parts comprising differing materials and its working method.

Background technology

Conventional truck support frame can be made up of differing materials, comprises the polymer composites of such as steel, aluminium and enhancing. Vehicular manufacturer attempts to find the way of compromise between weight saving and structural rigidity. It is intended that be designed for the lightweight crossbeam (cross-member) of full-scale (full-sized) light truck frame. And aluminium matter crossbeam can be designed for obtain up to 50% weight saving meet performance objective simultaneously. Although aluminium matter crossbeam has higher potentiality for the manufacture of lightweight truck frame, but aluminium is lower than the strength of materials of steel. Connect aluminum part, to steel longitudinal beam (rails), there is challenge equally, particularly when the tubular assembly that two parts are closed cross-section. In addition, it is also expensive for again processing existing processing facility to process the complex technology connecting differing materials.

The existing document of some in this area teaches and uses machanical fastener to be fixed together with two longerons made by differing materials. But these technology are more unsatisfactory. These mechanical featuress comprise the fastening piece that can increase cost and manufacturing complexity. U.S. Patent Publication text 20090188206, title be " for connecting the system and method for differing materials " patent literature teaches the longeron using overlapping structure for differing materials. Structural part is clamped one end of the first structural part and is soldered on the 2nd structural part. This superimposed structure wherein instructed defines tripartite (3-way) mechanical interlock, and connects the connection of (such as longeron is to the connection of crossbeam) its more applicable coaxial construction part relative to intersection or structural part angularly. These instructions seem equally and are not suitable for closed cross sectional structure part.

Thus, it would be desirable to two structural parts being formed by differing materials for connecting of the interconnection technique being improved to manufacture, vehicle frame always becomes.

Summary of the invention

What the invention solves in the problems referred to above is one or more. Other features and/or advantage will become apparent from specification sheets below.

According to an example embodiment, it is provided that a kind of for processing the method that vehicle frame always becomes, comprising: form bolt (key) and socket (receptor) between the interconnecting member of the first material component and the crossbeam with the 2nd material component and arrange having; Arrange a position via this bolt and socket and connect this interconnecting member and crossbeam; By in this interconnecting member and crossbeam insertion longeron; And in another position, this interconnecting member is soldered to this longeron.

According to another example embodiment, a kind of process the method that vehicle crossbeam always becomes and comprise: in the one in first structural part or the 2nd structural part of differing materials component, form hole; This first structural part and the 2nd structural part are intersected; Another one in first structural part or the 2nd structural part is formed in this hole thus forms mechanical interlock between the first structural part and the 2nd structural part.

According to another example embodiment, vehicle frame always becomes to comprise: first structural part with interconnecting member; With the 2nd structural part that this first structural part intersects at this conductor track connection structure part place; And the bolt of commutative the cooperation being formed on the 2nd structural part or interconnecting member and socket to form mechanical interlock when coordinating.

According to a further aspect of the present invention, it is provided that a kind of method processed vehicle frame and always become, comprising: form bolt and socket between the interconnecting member of the first material component and the crossbeam with the 2nd material component and arrange having; Arrange via bolt and socket a position and connect interconnecting member and crossbeam; By in interconnecting member and crossbeam insertion longeron; And in another position, interconnecting member is soldered to longeron.

According to one embodiment of present invention, wherein formation bolt and socket setting comprise: the projection being formed as in interconnecting member by bolt; And slot-like become the hole in crossbeam.

According to an alternative embodiment of the invention, wherein formation bolt and socket arrange and comprise: the lip being formed as in interconnecting member by bolt; And slot-like become the hole in crossbeam.

Another embodiment according to the present invention, method comprises further: around this hole edge fold described in lip thus formed flanging lock.

Another embodiment according to the present invention, wherein forms bolt and socket setting comprises: the projection being formed as in crossbeam by bolt; And slot-like become the hole in interconnecting member.

An advantage of the present invention is disclose the light vehicle structural framing that different size vehicle can utilize, and comprises full-scale truck framework. The weight saving that the present invention is correlated with can up to 50%.

Another advantage of the present invention is the connection of the structural part achieving two kinds of differing materials can with closed cross-section. Structural part can relative to each other with positioned at arbitrary angles.

Below by example, connect the longitudinal beam being made up of differing materials and horizontal beam with reference to accompanying drawing by explaining more in detail. Wherein in accompanying drawing, identical drawing reference numeral is used for identical or that essence is identical element. Being combined with accompanying drawing by the preferred Implementation Modes of specifically described execution the present invention below, above-mentioned feature and advantage and other feature and advantage of this instruction will become apparent.

Accompanying drawing explanation

Fig. 1 is the top perspective view that the vehicle support deck of the example embodiment according to the present invention always becomes.

Fig. 2 is at the sleeve at circle 2 place and the stereographic map of crossbeam in Fig. 1.

Fig. 3 is the sleeve of Fig. 2 and the viewgraph of cross-section of crossbeam.

Fig. 4 is the sleeve of another example embodiment and the stereographic map of crossbeam.

Fig. 5 is the sleeve of Fig. 4 and the viewgraph of cross-section of crossbeam.

Fig. 6 is the sleeve of another example embodiment and the stereographic map of crossbeam.

Fig. 7 is the sleeve of Fig. 6 and the viewgraph of cross-section of crossbeam.

Fig. 8 is the sleeve of another example embodiment and the part stereographic map of crossbeam.

Fig. 9 is the sleeve of Fig. 8 and the stereographic map of crossbeam.

Figure 10 is the crossbeam of assembling and the viewgraph of cross-section of longeron in another example embodiment.

Figure 11 is crossbeam and the longeron of the Figure 10 via the connection of another example interconnection technique.

Embodiment

With reference to accompanying drawing, wherein similar identification represents identical in multiple view or corresponding parts, drawings show the vehicle support deck of the structural part being made up of differing materials with connection. Specifically, lightweight aluminium matter crossbeam is connected to steel longeron by the interconnecting member of the placement side by side therebetween. The interconnecting member illustrated between crossbeam and longeron by between interconnecting member and crossbeam the mechanical interlocked technology of the instruction of a position and between longeron and interconnecting member other interconnection technique of another position alleviate connect differing materials challenge. Interconnecting member one end uses mechanical interlock to be connected to aluminium matter crossbeam. Longeron is connected at the other end of interconnecting member and always becomes the interconnection technique used to comprise, such as MIG(protection of inert gas metal pole electrode arc-welding) welding, soldering or soldering. The interconnecting member disclosed facilitates the material using relatively low weight in vehicle frame.

Further disclosing the method that processing vehicle frame always becomes in addition, the method comprises requirement and does not require to use interconnecting member with the interconnection technique of longitudinal beam connected and crossbeam.

The invention describes such as aluminium matter crossbeam is connected to steel interconnecting member or sleeve design and method. Can such as weld the son of aluminium matter crossbeam and steel sleeve always is become to be connected to steel longeron by traditional diamond-making technique subsequently.

Refer now to Fig. 1, show vehicle support deck 10. Support frame 10 is configured in full-scale skin card and uses. But, the applicable any vehicle support deck of current instruction, such as, two-door car, car, SUV, multifunctional vehicle (allutilityvehicle), lorry and commercial car etc. Support frame 10(is as shown in the figure) take from the rear portion in truck frame. This part supports truck carriage (not shown). Longeron (or structural part) 20 always becomes and the longitudinally extension of this vehicle relative to this with 30. In the embodiment of display, longeron 20,30 can be made up of steel and, roll forming shaping via extrusion moulding, hydraulic pressure or additive method are shaping. The rear end of longeron is interconnected by steel crossbeam 40. Towing hook (towhitch) 50 is connected to crossbeam. Lateral bracket (sidebracket) 60 is equipped with for crossbeam 40 and longeron being interconnected and are used for longeron 20,30 is connected to other vehicle structure (not shown)s in every one end of longeron 20,30.

As shown in Figure 1, in the front end of support frame 10, another steel crossbeam 70 intersects with each longeron 20,30. As shown in the figure, longeron 30 is soldered to crossbeam 70. Each longeron 20,30 comprises the ladder-shaped support (not shown) for tie point and wire harness.

As shown in Figure 1, vehicle support deck 10 also comprises the total one-tenth 80 of the son for installing spare tyre. The total one-tenth 80 of son comprises the aluminium matter crossbeam 90 of two horizontal expansions. Crossbeam 90 supports the secondary vehicle frame 100 being used for spare tyre. Tire is fixed to secondary vehicle frame by capstan winch (winch) (not shown) passing hole 110. Secondary vehicle frame 100 can be made up of aluminium, aluminium alloy, steel, titanium or polymkeric substance. Secondary vehicle frame 100 shown in this is punching press part. This pair vehicle frame 100 can also such as utilize powder metallurgy technology to be formed via moldings formed therefrom.

Aluminium matter crossbeam 90 is configured for relative to longeron 30 fixed joint vehicle frame 100. Crossbeam 90 opposing frame always becomes and vehicle horizontal expansion. As described in below, crossbeam 90 is equipped with interconnecting member 120. Interconnecting member 120 is connected to crossbeam by one end using mechanical interlock; Interconnecting member is connected to longeron 20 and 30 in end opposite further via MIG welding. In this embodiment, the steel sleeve in the cross section that interconnecting member 120 wraps up crossbeam 90 completely for being configured for.

With reference now to Fig. 2-3, the vehicle frame showing Fig. 1 always becomes 10 stereographic maps in the cross section at circle 2 place. Longeron 20 is equipped with steel sleeve 120 and aluminium matter crossbeam 90 inserts wherein. In four surperficial each of one end of crossbeam 90, square circle (oblong) hole 150 has been cut at interconnecting member 120. Aluminium matter crossbeam 90 is placed in steel longeron 20. A series of bolts (key) 160 that sleeve 120 is configured with in the socket or hole 150 extending into and being formed in crossbeam 90. In the illustrated embodiment, the mechanical interlocked projection (impression) of bolt 160 for being used as between sleeve 120 and crossbeam 90. Sleeve 120 and crossbeam 90 thus be connected to mechanical interlock place (or bolt and socket arrange). Socket 150 is for being formed in the square circle hole of crossbeam 90 one end. As shown in the figure, it is also possible to be coated in the cross section of sleeve 120 and crossbeam 90 with the use of binding agent 170 and strengthen sleeve-crossbeam interlocking structure. Caking agent can activate via soldering, hot activation, humidity or additive method.

After sleeve 120 and crossbeam 90 connect, in these two parts insertion steel longerons 20. Sleeve 120 is connected to longeron 20 subsequently. In this embodiment, sleeve 120 is connected to longeron 20 via weldprocedure. The general character of the Material selec-tion between sleeve 120 and longeron 20 simplifies weldprocedure. For the embodiment shown in Fig. 2-3, joint between sleeve 120 and crossbeam 90 produces in longeron 20 (as shown in the figure). In other embodiments, the joint of sleeve and crossbeam produces outside longeron.

Another example embodiment of vehicle support deck 200 is shown with reference to figure 4 and 5. Longeron 210 is equipped with steel interconnecting member 220(or sleeve) and aluminium matter crossbeam 230 or intersect with it. Cutting hole 240,250 on four surfaces of both crossbeam 230 and sleeve 220 respectively. Hole 240,250 is square circle and is positioned on the surface of the cooperation of aluminium matter crossbeam 230 and steel sleeve 220. Hole 240 has slightly big big footpath (maiordiameter) and the diameter of path (minordiameter) than hole 250. As shown in the cross section of Fig. 5, sleeve 220 be configured with edge (or lip) 270 place extend into the lip 260 being formed in crossbeam 230 hole 240. The mechanical interlocking mechanism that lip 260 is used as between sleeve 220 and crossbeam 230. Sleeve 220 and crossbeam 230 are mechanically connected in the joint place of lip 260 with the lip 270 in the hole in crossbeam 230. In the embodiment of display, with the use of the binding agent 280 in the cross section being applied to the sleeve overlapping with crossbeam, sleeve 220 is fixed on crossbeam. Binding agent 280 activates through soldering processes. In other embodiments, it is possible to activate binding agent by humidity or by other techniques. In other embodiments, binding agent is not used.

With reference now to Fig. 6 and Fig. 7, which show another example embodiment that vehicle support deck always becomes 300. Fig. 6 shows sleeve 310 and the crossbeam 320 of sleeve is housed in the outside of crossbeam. Such as, the interconnecting member that sleeve 310 is used as between crossbeam 320 and longeron (as shown in Figure 1 20). As shown in Figure 6, sleeve 310 has the circular hole 330 of a series of squares. One end of aluminium matter crossbeam 320 loads in sleeve 310 and shaping crossbeam and sleeve press-in is coordinated together with (press-fit). In the illustrated embodiment, crossbeam 320 is depressed into deformation and enters in sleeve 310. Depend on thickness and the Material selec-tion of crossbeam, changeable pressure. In an embodiment, crossbeam 320 is made of aluminum and shaping to 3000psi by increasing pressure wherein. It is shaping that this technique is often referred to hydraulic pressure. As shown in Figure 7, when aluminium matter crossbeam 320 is pressed, form the projection 340, impression or the fastener that extend into hole 330 in sleeve 310. Thus, define the mechanically interconnected structure of another kind of form. Sleeve 310 and the joint interface place of crossbeam 320 between protruding 340 and hole 330 are mechanically coupled together. Sleeve 310 and crossbeam 320 are inserted into steel longeron subsequently and this sleeve is soldered to such as 350 place, position of the joint interface being different from sleeve and crossbeam. If such as structure properties has such demand, then can comprise caking agent in the overlapping region of joint.

With reference now to Fig. 8 and Fig. 9, which show another alternate embodiments that vehicle frame always becomes 400. Lightweight crossbeam 410 is equipped with steel sleeve 420. Along the girth cutting hole 430 of crossbeam 410. The lip 440 that sleeve 420 is configured with in the hole 430 extending into and being formed in crossbeam 410. In this is arranged, the lip 440 in sleeve 420 is used as the bolt for the socket (or hole 430) in crossbeam 410. Lip 440 position that to be formed in steel sleeve 420 corresponding with the hole 430 on aluminium matter crossbeam 410. After aluminium matter crossbeam 410 puts into steel sleeve 420, lip 440 is pushed through hole 430 and the folding longitudinal axis A making the edge of lip be parallel to crossbeam 410 and always become with sleeve 420 downwards. When defining flanging lock between crossbeam 410 and sleeve 420 along lip 440 during the edge fold in hole 430. Crossbeam 410 is connected with the edge of sleeve 420 in hole 430. Such as, sleeve 420 can be connected to longeron (20 shown in Fig. 1) subsequently through weldprocedure.

Figure 10-11 shows another example embodiment that vehicle frame always becomes 500. In this embodiment, it is not necessary to the interconnecting member between crossbeam 510 and longeron 520. Aluminium matter crossbeam 510 is connected to steel longeron 520 through hydraulic pressure is formed connected. Before MIG welds, aluminium matter crossbeam 510 is put in longeron 520. Primary clearance is there is between crossbeam 510 and steel longeron 520. Longeron 520 comprises the hole 530(that aluminium matter pipe (or crossbeam) 510 installs through it and is shown as cross section). Aluminium matter crossbeam 510 by being depressed into about 3500psi to form the protruding 540(in the hole 530 that deformation enters on sleeve 510 or to heave (bubbles)). Crossbeam 510 is formed flange 550. The hydraulic pressure of aluminium matter crossbeam 510 is shaping adds cross section to form mechanical engagement at longeron 520 place. Therefore, it is achieved that the mechanical interconnection structure of another type. In an embodiment, before insertion longeron 520, crossbeam 510 applies caking agent (such as 170 shown in Fig. 3). Caking agent can have anticorrosive benefit and lock stops. In an embodiment, longeron 520 is formed with the edge of spination with as the 2nd mechanical lock between longitudinal and cross beam 510 at the contour place in hole 530. In another embodiment, precompressed crossbeam before insertion longeron. Perform precompressed to control the deformation mode of crossbeam 510 between hydraulic pressure shaping period. Such as, initial rectangular impression can be formed before the pressing on the cross section of crossbeam. Projection 540 on crossbeam 510 has the edge of expansion (squared-off) in this embodiment.

In an embodiment again, crossbeam 510 comprises the hole that longeron 520 can pass from it. Crossbeam is depressurized (de-pressurized) after insertion longeron. The pressure of example vacuum is-4500psi. Longeron deformation enters the hole in crossbeam thus forms another mechanical interlock.

Hydraulic pressure is shaping be may be used for being combined in aluminium matter crossbeam with steel longeron together with and do not use the one in the several method of interconnected parts. (not shown) in another embodiment, by forming interlocking structure by the steel annular pipe of cold aluminium ring shape crossbeam insertion heating. When total one-tenth cooling, pipe and crossbeam are interlocked by material contracts or shrink on fit. The interlocking structure that circular mandrel (mandrel) (or other molding devices) are formed between longitudinal and cross beam can be used.

The multiple method processed vehicle frame and always become is further disclosed at this. A kind of exemplary method comprises the following steps: be shaped between sleeve (having the first material component) and crossbeam (having the 2nd material component) bolt and socket setting. Then method be included in a position via bolt and socket, joint sleeve and crossbeam are set and by sleeve and crossbeam insertion longeron. In subsequent handling, interconnected parts are connected to longeron subsequently, such as, in another position by sleeve weld to longeron.

In an embodiment of aforesaid method, formation bolt and socket arrange and comprise: (i) the projection being formed as in interconnecting member by bolt; And (ii) slot-like is become the hole in crossbeam. Such as with reference to shown by figure 2 and 3. Bolt is the projection 160 being formed in sleeve 120 and socket is the hole 150 being formed in crossbeam 90.

In another example embodiment of aforesaid method, formation bolt and socket arrange and comprise: (i) bolt is formed as the lip in interconnected parts; And (ii) slot-like is become the hole in crossbeam. Such as with reference to shown in figure 4 and Fig. 5.

In another example embodiment of aforesaid method, comprise extra step: by the edge fold of lip surrounding hole thus formed flanging lock. Such as with reference to figure 8 and Fig. 9 Suo Shi and discuss.

In another example embodiment of method as above, formation bolt and socket arrange and comprise: (i) the projection being formed as in crossbeam by bolt; And (ii) slot-like is become the hole in interconnecting member. Such as mentioned above show in figure 6.

Disclosed herein another processing illustrative methods of always becoming of vehicle frame in addition. The method comprises: (i) form hole in the first structural part or have in the 2nd structural part of the material different from the material of the first structural part one; (ii) the first structural part and the 2nd structural part are intersected; And (iii) by the another one shaped inlet openings in the first structural part and the 2nd structural part thus formed between the first structural part and the 2nd structural part mechanical interlock (such as with reference to Figure 10 and 11 describe). Such as what discuss about the embodiment of Figure 10 and 11, one in the first structural part or the 2nd structural part pressurized after that crossing so that by laminated structure part deformation access aperture. In certain embodiments, before or after forming mechanical interlock, caking agent or corrosion resistant material is applied.

Should be appreciated that the parts of display (such as, sleeve, longitudinal and cross beam) can be made of a variety of materials, comprise, such as, steel, aluminium, manganese, titanium, tungsten and reinforcement polymer composites etc. Sleeve connection to the interconnection technique of longeron is not limited to MIG welding but can comprise laser welding, spot welding, soldering, with fastening piece, soldering, bonding or curling (crimping) etc. Multiple processing technology can be used to form sleeve and longeron, and these processing technologies comprise that molded, casting, car system, hydraulic pressure are shaping, punching press or expressing technique etc.

Should be appreciated that interconnecting member can have any size, shape or structure and be not limited to sleeve. Such as, in other embodiments, interconnecting member is rectangle and is clipped in the socket in crossbeam to be provided for the surface of follow-up welding.

At interconnecting member and crossbeam or caking agent can be applied between interconnecting member and any one group of longeron. The caking agent of any type can be used, such as, one section or two sections of epoxy resin applicable in the design illustrated. The end of interconnecting member and crossbeam can also comprise braze material therebetween and to strengthen their connection and be used as corrosion and alleviate thing. The end of mixing material lap joints can have polymkeric substance or other sealing material.

Although having described the best performing the present invention and preferred implementation in detail, the personnel of the technical field that the present invention is correlated with will appreciate that the plurality of replaceable design and implementation example of the enforcement the present invention in right.

Claims (15)

1. process the method that vehicle frame always becomes, comprise:

In the first structural part with the 2nd structural part with the material different from the material of described first structural part one forms hole;

Described first structural part and described 2nd structural part are intersected; And

Another one formation in described first structural part and described 2nd structural part is entered in described hole thus forms mechanical interlock between described first structural part and described 2nd structural part;

Wherein, described hole is formed in described first structural part and the described intersection place of described 2nd structural part.

2. the method for claim 1, the wherein said another one by described first structural part and described 2nd structural part formed enter described hole for by pressurize described first or described 2nd structural part and complete.

3. method as claimed in claim 2, comprises: apply caking agent between described first structural part and described 2nd structural part further.

4. a vehicle frame always becomes, and comprises: first structural part with interconnecting member; With the 2nd structural part that described first structural part intersects at described interconnecting member place; And the bolt of the cooperation formed on described 2nd structural part or interconnecting member and socket to form mechanical interlock when engaging commutatively;

Wherein, described 2nd structural part and described interconnecting member have hole at described intersection place, described 2nd structural part has the lip extended internally in described hole, described interconnecting member has the lip extending into the described hole being formed in described 2nd structural part at the described lip place of described 2nd structural part, the described mechanical interlock that the described lip of described interconnecting member is used as between described interconnecting member and described 2nd structural part.

5. vehicle frame as claimed in claim 4 always becomes, and wherein said interconnecting member is configured for and is connected to described first structural part a position and is connected to described 2nd structural part in different positions.

6. vehicle frame as claimed in claim 5 always becomes, and wherein said first structural part is configured for and longitudinally extends relative to described total one-tenth; And wherein said 2nd structural part is configured for the horizontal expansion relative to described total one-tenth.

7. vehicle frame as claimed in claim 6 always becomes, and wherein said first structural part is made up of steel, and described interconnecting member is made up of steel and described 2nd structural part is formed by than the material of steel more lightweight.

8. vehicle frame as claimed in claim 4 always becomes, and wherein said 2nd structural part is made up of aluminium.

9. vehicle frame as claimed in claim 4 always becomes, and wherein said bolt is the projection being formed in described interconnecting member.

10. vehicle frame as claimed in claim 9 always becomes, and wherein said socket comprises the hole being formed in described 2nd structural part.

11. vehicle frames as claimed in claim 4 always become, and wherein said bolt is the described lip being formed in described interconnecting member.

12. vehicle frames as claimed in claim 11 always become, and wherein said socket comprises the hole being formed in described 2nd structural part.

13. vehicle frames as claimed in claim 12 always become, and wherein said lip is configured for the edge fold around described hole thus forms flanging lock.

14. vehicle frames as claimed in claim 4 always become, and wherein said bolt is the projection being formed in described 2nd structural part.

15. vehicle frames as claimed in claim 14 always become, and wherein said socket comprises the hole being formed in described interconnecting member.