CN109969272A - A kind of automobile skeleton, automobile roof frame and automobile side wall frame - Google Patents

Abstract

The invention discloses an automobile skeleton, an automobile roof skeleton and an automobile side wall skeleton, and relates to the technical field of automobiles. An automobile skeleton includes a plurality of connection points formed by connecting a plurality of vehicle beams perpendicularly to each other, and the plurality of connection points include a first A connection point, the first connection point is formed by connecting the first vehicle beam and the second vehicle beam through a connecting piece. The first connecting piece includes a connecting plate and an L-shaped protective plate, and the inner corners of the two L-shaped protective plates are arranged opposite to the two ends of the connecting plate, so that one side of the connecting piece 1 forms an installation portion in the shape of a zigzag, and the other side forms a mounting portion. noodle. One end of the first vehicle beam is inserted into the mounting portion, and the side wall of the second vehicle beam is fixed on the mounting surface. The beneficial effects of the present invention are that: the present invention overcomes the defects of the prior art, is suitable for large-scale design and manufacture of passenger car body frames, and has the advantages of high lightweight level, high material utilization rate, strong structural stability and good technical state adaptability Etc.

Description

A car frame, car roof frame and car side wall frame

technical field

The invention relates to the technical field of automobiles, in particular to an automobile frame, an automobile roof frame and an automobile side wall frame.

Background technique

The traditional bus skeleton is generally a steel skeleton structure, which is welded by rectangular steel pipes. Compared with rectangular steel pipes, aluminum alloys have the characteristics of high specific strength, light weight, corrosion resistance, and ease of processing. However, most of the existing all-aluminum passenger car skeletons have problems such as complex structural design and many installation parts, which cannot achieve standardized production, and are usually assembled by welding, which is inconvenient for disassembly and maintenance.

The Chinese Patent Application No. 201710160800.3 discloses an automobile frame, which includes a vertically arranged main beam, a horizontally arranged auxiliary beam, and a connector detachably connected between the main beam and the auxiliary beam; the main beam includes mutually perpendicular The first mounting surface and the second mounting surface are concavely formed with at least two first fixing grooves on the first mounting surface, and at least one second fixing groove is formed on the second mounting surface. The first fixing slot and the second fixing slot extend in a vertical direction; the auxiliary beam includes a third installation surface and a fourth installation surface that are perpendicular to each other, and at least one third fixing slot is opened on the third installation surface, so The fourth installation surface is provided with at least one fourth fixing groove, the third fixing groove and the fourth fixing groove extend in the horizontal direction; the end surface of the auxiliary beam is attached to the second installation surface of the main beam ; The connecting piece includes a first mounting plate and a second mounting plate that are perpendicular to each other, the first mounting plate is provided with a mounting hole corresponding to the position of the second fixing groove, and the second mounting plate is provided with a mounting hole corresponding to the position of the second fixing slot. A mounting hole corresponding to the position of the third fixing slot, a third mounting plate extending vertically from the edge of the first mounting plate, and a mounting hole corresponding to the position of the first fixing slot is opened on the third mounting plate , the edge of the second mounting plate is vertically extended with a fourth mounting plate, and the fourth mounting plate is provided with a mounting hole corresponding to the position of the fourth fixing groove; the material of the main beam and the auxiliary beam is Aluminum alloy. The advantages of this technical solution are: the main beam, the auxiliary beam and the connecting piece can be quickly and detachably installed, the main beam and the auxiliary beam constitute the main frame of the car body, and there are few types of parts required, which is convenient for standardized operation and installation. Low cost, high structural strength, and easy maintenance.

However, this technical solution has the following shortcomings: First, the structural strength of a single connector in this solution is weak, and when it is applied to a connection point that requires high structural strength, it is necessary to use two connectors to install symmetrically at the same time to ensure structural stability. Second, the third mounting plate and the fourth mounting plate of the connector in this scheme are respectively fixed on the first mounting surface of the main beam and the fourth mounting surface of the auxiliary beam by screws, so that the first mounting surface and the fourth mounting surface are installed The surface of the joint of the surface is not smooth, which is not convenient for subsequent bonding of glass, window frame, side skin or interior parts of different materials.

SUMMARY OF THE INVENTION

The present invention provides an automobile frame, an automobile roof frame and an automobile side wall frame, the main purpose of which is to solve the above problems.

The present invention adopts following technical scheme:

An automobile frame, comprising a plurality of connection points formed by connecting a plurality of vehicle beams perpendicularly to each other, the plurality of the connection points including a first connection point, the first connection point is composed of a first vehicle beam and a second vehicle beam through a connecting piece. Connection structure; the first connecting piece includes a connecting plate and an L-shaped protective plate, and the inner corners of the two L-shaped protective plates are arranged opposite to the two ends of the connecting plate, so that one side of the connecting piece is formed into a zigzag shape. One end of the first vehicle beam is inserted into the mounting portion, and the side wall of the second vehicle beam is fixed on the mounting surface.

Further, an outer corner surface of the L-shaped guard plate is provided with a boss, and the connecting plate is provided between the bosses of the two L-shaped guards to form the installation portion; the first The end portion of the vehicle beam is provided with a first mounting groove which is fitted with the mounting portion.

Further, the other outside corner surface of the L-shaped guard plate is provided with two bosses, and the second bosses of the two L-shaped guard plates form the mounting surface, and the side wall of the second vehicle beam is provided with a second boss. the second installation groove in which the installation surface is fitted.

Further, the vehicle frame also includes a second connection point, the second connection point is formed by connecting the third vehicle beam and the fourth vehicle beam through two connecting pieces, the second connecting pieces are L-shaped, and the two connecting pieces are two. The inner corner is oppositely disposed on the side wall of the fourth vehicle beam, and the third vehicle beam is inserted in the middle.

Further, an external angle surface of the connecting member 2 is provided with a boss 3, and both side walls of the third vehicle beam are provided with a third installation groove that is three-phase fitted with the boss.

Further, the other outer corner surface of the connecting piece 2 is provided with a boss 4, and the side wall of the fourth vehicle beam is provided with a fourth installation groove which is fitted with the boss 4.

Furthermore, the first vehicle beam, the second vehicle beam, the third vehicle beam, the fourth vehicle beam, the first connecting piece and the second connecting piece are all aluminum alloy profiles.

Further, the structural strength of the first connection point is greater than the structural strength of the second connection point.

An automobile frame includes a roof frame and a side wall frame, the roof frame includes a top arc rod and a top side longitudinal beam, the side wall frame includes a column connected with the top side longitudinal beam; the roof frame The side longitudinal beam and the upright column are connected by the above-mentioned connecting piece 1, and constitute the above-mentioned first connection point; the two top side longitudinal beams are provided with a plurality of said tops through the above-mentioned connecting piece 2. arc rod, and constitute the second connection point as described above.

An automobile roof frame, comprising a top arc rod and a top side longitudinal beam, a plurality of the top arc rods are arranged between the two top side longitudinal beams through the above-mentioned connecting piece 2, and constitute the above-mentioned Second connection point.

A side frame of an automobile includes a top side longitudinal beam, a waist beam, a bottom side longitudinal beam and an upright column. A plurality of the uprights constitute the first connection point as described above.

A side frame of an automobile, comprising a top side longitudinal beam, a waist beam, a bottom side longitudinal beam, a reinforcing beam and an upright column, the waist beam, the top side longitudinal beam and the bottom side longitudinal beam are all connected by the above-mentioned connecting pieces One is provided with a plurality of the uprights, and constitutes the first connection point as described above; the second is provided with a plurality of the reinforcing beams between two adjacent uprights through the above-mentioned connecting piece, and constitutes the above-mentioned first connection point the second connection point.

Compared with the prior art, the beneficial effects produced by the present invention are:

1. The first vehicle beam, the second vehicle beam and the connecting piece of the present invention can realize quick and detachable installation, and constitute the main frame of the vehicle body; The main connection points of the automobile frame have high requirements on the structural strength; the mounting part of the connecting piece 1 is inserted into the end of the first vehicle beam, and the mounting surface is fixed on the side wall of the second vehicle beam, which will not affect the first vehicle beam. It interferes with other sides of the second vehicle beam, does not affect the bonding and arrangement of subsequent related accessories, and overcomes the defects of the prior art.

2. According to the different requirements for structural strength of different parts of the car frame, the present invention designs three types of connectors with different structural strengths. Each connector can be used with bolts to assemble a variety of aluminum profiles into the car frame structure, replacing the existing all-aluminum structure. The welding connection method adopted by the passenger car makes the assembly and disassembly of the car frame more flexible and convenient, and fully considers the variability of the assembly process and technical status of the passenger car glass, window frame, skin and hatch, which greatly improves the structure of the aluminum alloy body. market adaptability.

3. The combined design of the groove and the boss in the present invention can increase the contact area between the aluminum profile and the connecting piece, and ensure that the force between the two is uniform, thereby increasing the stability of the structure and improving the vehicle's stability. Bending and torsion resistance, and improve vehicle reliability and safety.

4. The automobile skeleton structure provided by the present invention is assembled by a variety of aluminum profiles and connectors. The structural design of each component is simple, the material utilization rate and the light weight level are high, and it can be flexibly applied to the bus body according to the design requirements and structural requirements. Different parts or different types of bus bodies are convenient for large-scale standardized production, which is in line with the production process characteristics of multiple varieties and small batches of buses.

To sum up, the present invention overcomes the defects of the prior art, is suitable for large-scale design and manufacture of passenger car body frames, and has the advantages of high light weight, high material utilization, strong structural stability, and good adaptability to technical conditions.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of connector 1 in the present invention.

FIG. 3 is a schematic structural diagram of the second connector in the present invention.

FIG. 4 is a schematic structural diagram of an aluminum profile 1 in the present invention.

FIG. 5 is a schematic structural diagram of the second aluminum profile in the present invention.

FIG. 6 is a schematic view of the structure of the upright column of the present invention.

FIG. 7 is a schematic structural diagram of the third aluminum profile in the present invention.

FIG. 8 is a schematic view of the assembly of the top side longitudinal beam and the upright column in the present invention.

FIG. 9 is a schematic diagram of the assembly of the waist beam and the upright column in the present invention.

FIG. 10 is a schematic structural diagram of the fourth aluminum profile in the present invention.

FIG. 11 is a schematic structural diagram of the third connector in the present invention.

FIG. 12 is an enlarged schematic view of part A in FIG. 1 .

FIG. 13 is an enlarged schematic view of part B in FIG. 1 .

FIG. 14 is an enlarged schematic view of part C in FIG. 1 .

Detailed ways

Specific embodiments of the present invention will be described below with reference to the accompanying drawings. Numerous details are described below in order to provide a thorough understanding of the present invention, but for those skilled in the art, the present invention may be practiced without these details.

1, 2 and 3, an automobile frame includes a plurality of connection points formed by connecting a plurality of vehicle beams perpendicularly to each other, and the plurality of the connection points include a first connection point and a second connection point, and the first connection point is composed of The first vehicle beam and the second vehicle beam are connected by a connecting member 15 , and the second connecting point is formed by connecting the third vehicle beam and the fourth vehicle beam through a connecting member 23 .

1 and FIG. 2, the connecting piece 15 includes a connecting plate 153 and an L-shaped guard plate 154, and the inner corners of the two L-shaped guard plates 154 are oppositely arranged at both ends of the connecting plate 153, so that one of the connecting pieces 15 is The mounting portion 155 is formed on one side, and the mounting surface is formed on the other side. One end of the first vehicle beam is inserted into the mounting portion 155 , and the side wall of the second vehicle beam is fixed on the mounting surface.

Referring to FIGS. 1 and 2 , specifically, an external corner surface of the L-shaped guard plate 154 is provided with a boss 151, and a connecting plate 153 is provided between the bosses 151 of the two L-shaped guard plates 154 to form a mounting portion 155, the end of the above-mentioned first vehicle beam is provided with a first installation groove which is fitted with the installation part 155; The second boss 152 forms the above-mentioned installation surface, and the side wall of the above-mentioned second vehicle beam is provided with a second installation groove which is fitted with the above-mentioned installation surface. More specifically, the L-shaped guard plate 154 is arranged with a plurality of mounting screw holes 156 along the first boss 151 and the second boss 152; the connecting plate 153 is provided with weight reduction holes 158 on the left and right sides near the L-shaped guard plate; The inner corner of the L-shaped guard plate 154 is provided with an inclined table 157 for increasing the structural strength, and the inclined table 1 157 , the L-shaped guard plate 154 , the first boss 151 , the second boss 152 and the connecting plate 153 are integrally formed.

1 and 3 , the second connecting member 23 is L-shaped, and the inner corners of the two connecting members 23 are disposed on the side walls of the fourth vehicle beam facing outward, and the third vehicle beam is inserted in the middle.

Referring to FIGS. 1 and 3 , specifically, an external corner surface of the connecting member 23 is provided with a boss 3 231 , and both side walls of the third vehicle beam are provided with a third installation that fits with the boss 3 231 The other external corner surface of the second connecting piece 23 is provided with a fourth boss 232 , and the side wall of the fourth vehicle beam is provided with a fourth installation slot which is fitted with the fourth boss 232 . More specifically, the second connecting piece 23 is provided with a plurality of mounting screw holes 234 along the third boss 231 and the fourth boss 232, and the second connecting piece 23 is provided with a second inclined platform 233 for increasing structural strength.

1, 2 and 3, the above-mentioned first vehicle beam, second vehicle beam, third vehicle beam, fourth vehicle beam, connector one 15 and connector two 23 are all aluminum alloy profiles, and the first The structural strength of the connection point is greater than the structural strength of the second connection point. The first connection point and the second connection point can be distributed in a plurality of different connection parts of the automobile frame. The practical application of the point and the second connection point is not limited to this embodiment.

1 , 12 , 13 and 14 , an automobile frame includes a roof frame 2 , a front wall frame 3 , a rear wall frame 4 and two side wall frames 1 . The side wall frame 1 includes a top side longitudinal beam 11 , a waist beam 13 , a bottom side longitudinal beam 14 , a reinforcing beam 16 , a column 12 and a small column 17 . Between the waist beam 13 and the top side longitudinal beam 11, and between the waist beam 13 and the bottom side longitudinal beam 14, a plurality of upright columns 12 are provided through the connecting piece 15, and constitute the above-mentioned first connection point; A plurality of reinforcing beams 16 are arranged between the second connecting pieces 23 and constitute the above-mentioned second connection point; a plurality of small uprights 17 are arranged between the top side longitudinal beam 11 and the reinforcing beam 16 closest to it through the connecting pieces 23 .

4, specifically, the top side longitudinal beam 11 is an aluminum profile one 110, the cross section of the aluminum profile one 110 is approximately fan-shaped, the middle part is provided with a cavity one 111 along the axis direction, and the two sides are respectively provided with left grooves A 112 and a right groove 113, and a concave part 114 and a concave part 2 115 are respectively provided at the corners of the arc-shaped side and the two sides. More specifically, the aluminum profile one 110 is provided with a right-angled trapezoidal through hole one 116 at the corners on both sides of the left groove one 112 and the right groove one 113; the cavity one 111 is provided with two supporting walls 117; Two T-shaped reinforcing ribs 118 are symmetrically arranged on the lower side of the cross section of the aluminum profile one 110 . The arrangement of the cavity one 111 and the through hole one 116 can fully reduce the weight of the aluminum profile one 110, which is helpful to further improve the lightweight level of the passenger car. The disposition of the support wall 117 can play the role of supporting the arc-shaped surface, and can effectively improve the deformation resistance of the aluminum profile one 110 .

5 and 6, specifically, the upright column 12, the bottom longitudinal beam 14, the reinforcing beam 16, and the small upright column 17 are all aluminum profiles 120. The cross section of the aluminum profiles 120 is approximately rectangular, and the middle part is set along the axis direction. There is a second cavity 121 , and two grooves 122 are symmetrically provided on both sides; and both ends of the column 12 are provided with a space-saving groove 123 at the second groove 122 , which is matched with the connecting plate 153 . More specifically, the sides of the cross section of the second aluminum profile 120 and the four corners of the sides are provided with through holes 124 in the shape of right-angled trapezoids. The setting of the second cavity 121 and the second through hole 124 can fully reduce the weight of the second aluminum profile 120, which helps to further improve the lightweight level of the passenger car.

7, specifically, the waist beam 13 is an aluminum profile three 130, the cross section of the aluminum profile three 130 is approximately rectangular, the middle part is provided with a cavity three 131 along the axis direction, and the two sides are symmetrically provided with a groove three 132, and there are concave parts 133 at the upper and left corners. More specifically, the cavity three 131 is provided with an inclined reinforcing wall 134 ; the aluminum profile three 130 is provided with right-angled trapezoidal through holes 135 at the corners of both sides of the groove three 132 . The arrangement of the third cavity 131 and the third through hole 135 can fully reduce the weight of the third aluminum profile 130, which helps to further improve the lightweight level of the passenger car.

1 to 9, 13 and 14, describe the specific assembly method when the above-mentioned first connection point and second connection point are applied to the side frame 1:

(1) A plurality of uprights 12 are arranged between the waist beam 13 and the top side longitudinal beam 11 through the connecting piece 15, and constitute the above-mentioned first connection point: the two connecting pieces 15 are respectively fixed and inserted to the upright column 12 through the mounting portion 155. The two ends of one of the connecting pieces 15 are fixedly embedded in the right groove 113 of the top side longitudinal beam 11 through bolts (not shown in the figure) and the mounting screw holes 1 156, and the other connecting piece 1 The second boss 152 of the 15 is fixedly embedded in the third groove 132 of the waist beam 13 through bolts with the installation screw holes 1 156 . The upright column 12 is equivalent to the above-mentioned first vehicle beam, and the grooves 2 122 at both ends of the upright column 12 and the giving way grooves 123 together constitute the first installation groove of the above-mentioned first vehicle beam; the top side rail 11 and the waist beam 13 are equivalent to the above-mentioned first installation groove For the second vehicle beam, the first right groove 113 of the top side rail 11 and the third groove 132 of the waist beam 13 respectively constitute the second installation groove of the second vehicle beam.

(2) A plurality of uprights 12 are arranged between the waist beam 13 and the bottom side longitudinal beam 14 through the connecting piece 15 to form the first connection point: the two connecting pieces 15 are respectively fixed and inserted into the upright column through the mounting portion 155 Two ends of 12; one of the bosses 152 of one connector 15 is fixedly embedded in the groove 3 132 of the waist beam 13 by bolts with the installation screw holes 1 156, and the boss two 152 of the other connector 15 is fixed by bolts. The second groove 122 of the bottom side longitudinal beam 14 is fixedly embedded in the second groove 122 of the bottom side longitudinal beam 14 in cooperation with the first mounting screw hole 156 . Wherein, the upright column 12 is equivalent to the above-mentioned first vehicle beam, the groove two 122 at both ends of the upright column 12 and the giving way groove 123 together constitute the first installation groove of the above-mentioned first vehicle beam; the waist beam 13 and the bottom side rail 14 are equivalent to the above-mentioned For the second vehicle beam, the third groove 132 of the waist beam 13 and the second groove 122 of the bottom side rail 14 respectively constitute the second installation groove of the second vehicle beam.

(3) A plurality of reinforcing beams 16 are arranged between the two adjacent columns 12 through the connecting pieces 23 to form the above-mentioned second connection point: the two grooves 122 on both sides of the ends of the reinforcing beams 16 are matched by the third bosses 231 The second connecting piece 23 is fixedly embedded with the bolt, and the fourth boss 232 of the connecting piece 23 is fixedly embedded in the second groove 122 of the upright column 12 . The reinforcing beam 16 corresponds to the third vehicle beam, the second groove 122 of the reinforcing beam 16 constitutes the third installation groove; the column 12 corresponds to the fourth vehicle beam, and the second groove 122 of the column 12 constitutes the fourth mounting groove. installation slot.

(4) A plurality of small uprights 17 are arranged between the top side longitudinal beam 11 and the reinforcing beam 16 closest to it through the connecting piece 23: the second groove 122 on at least one side of the upper end of the small upright pillar 17 is matched by the third boss 231 The connecting piece 23 is fixedly embedded with the bolt, and the boss four 232 of the connecting piece 23 is fixedly embedded in the right groove 113 of the top side longitudinal beam; The second connecting piece 23 is fixedly embedded with the bolt 231 , and the fourth boss 232 of the connecting piece 23 is fixedly embedded in the second groove 122 of the reinforcing beam 16 . Since the small upright column 17 only plays the role of auxiliary support and does not require high structural strength, only one connecting member 23 is required to be connected with the top side longitudinal beam 11 and the reinforcing beam 16 respectively. In order to fully ensure the stability of the structure, the assembly method of this embodiment is preferably as follows: two connecting pieces are arranged on different sides of the upper and lower ends of the small column 17 respectively. However, its assembling method is not limited to this.

(5) The third groove 132 of the waist beam 13, the second groove 122 of the column 12 and the reinforcing beam 16 are covered with the decorative longitudinal beam 18 on the installation position of the aluminum alloy vehicle window, so that the extension line of the upper plane of the decorative longitudinal beam 18 It is flush with the bolts on the connecting piece 1 15 and the connecting piece 2 23, and forms a right angle with the inclined platform 1 157 and the inclined platform 2 233, which is convenient for the subsequent installation of sliding aluminum frame sliding windows, which solves the problem of other aluminum alloy body structures. The technical problem of not being able to install sliding aluminum frame sliding windows.

1 and 12, the roof frame 2 includes a top arc rod 21, a top longitudinal beam 22 and a top side longitudinal beam 11, as well as a connecting member 23 and a connecting member three 24, and the two top side longitudinal beams 11 are connected by connecting The second member 23 is provided with a plurality of top arc rods 21, and constitutes the above-mentioned second connection point; a plurality of top longitudinal beams 22 are provided between two adjacent top arc rods 21 through the connecting member 3 24.

10, specifically, the top arc rod 21 and the top longitudinal beam 22 are four aluminum profiles 210, the cross section of the four aluminum profiles 210 is approximately rectangular, and the two long sides are recessed inward to form two mutually symmetrical recesses In the slot four 211, the upper and lower ends of the middle part are provided with a cavity four 212 along the axial direction thereof. More specifically, the cross section of the aluminum profile 4 210 is provided with a rectangular through hole 4 213 in the middle of the two grooves 4 211 . The arrangement of the cavity 4 212 and the through hole 4 213 can fully reduce the weight of the aluminum profile 4 210, which is helpful to further improve the light weight level of the passenger car.

Referring to FIG. 11 , specifically, the third connecting member 24 is L-shaped, and the two external corner surfaces of the third connecting member 24 are respectively provided with a fifth boss 241 and a sixth boss 242 . The third connecting piece 24 is provided with a third mounting screw hole 243 along the fifth boss 241 and the sixth boss 242 .

1, 3, 4, 10, 11, 12 and 14, the specific assembly method of the top cover frame 2 is explained:

(1) A plurality of top arc rods 21 are arranged between the two top side longitudinal beams 11 through the connecting piece 23, and constitute the above-mentioned second connection point: the four grooves 211 on both sides of the end of the top arc rod 21 pass through the bosses The third 231 is fixedly embedded with the second connecting piece 23 with bolts, and the fourth boss 232 of the connecting piece 2 23 is fixedly embedded in the left groove one 112 of the top side longitudinal beam 11 . The top arc rod 21 is equivalent to the above-mentioned third vehicle beam, and the groove 4 211 of the top arc rod 21 constitutes the above-mentioned third installation groove; the top side rail 11 is equivalent to the above-mentioned fourth vehicle beam, and the left side of the top side rail 11 The first groove 112 constitutes the above-mentioned fourth installation groove.

(2) A plurality of top longitudinal beams 22 are arranged between two adjacent top arc rods 21 through the third connecting member 24: the grooves four 211 on both sides of the end of the top longitudinal beam 22 are fixed and embedded by the bosses five 241 with bolts There is a connecting piece 3 24 , the boss six 242 of the connecting piece 3 24 is fixedly embedded in the groove 4 211 of the top arc rod 21 .

1, 5, 10 and 14, the front wall frame 3 includes a front top arc rod 31 and two front wall side columns 32, and the rear wall frame 4 includes a rear top arc rod 41 and two rear wall side columns 42 The front top arc rod 31 and the rear top arc rod 41 are four 210 aluminum profiles, and the front side pillars 32 and the rear side pillars 42 are aluminum profiles two 120. The front top-arc rod 31 and the rear top-arc rod 41 are respectively fixed on the top-arc rods 21 on both sides of the top cover bracket 2; a top side longitudinal beam is connected between the adjacent front wall side uprights 32 and the rear wall side uprights 42 11. The waist beam 13 and the bottom side longitudinal beam 14 are assembled into a complete vehicle frame structure.

Referring to Figure 1, Figure 2, Figure 3, Figure 5, Figure 9, Figure 10 and Figure 14, the specific assembly method of the top cover frame 2 is described:

(1) The upper and lower sides between the adjacent front wall side uprights 32 and the rear wall side uprights 42 are respectively connected with the top side longitudinal beam 11 and the bottom side longitudinal beam 14 through the connecting piece 23 and the bolts. The specific connection and fixing method is the same as the connection method between the small column 17 and the top side longitudinal beam 11 , and those skilled in the art can understand and implement it with reference to the above description, so it will not be repeated here.

(2) The waist beam 13 is provided in the middle between the adjacent front wall side uprights 32 and the rear wall side uprights 42 through the connecting piece 15, and constitutes the above-mentioned first connection point. Among them, the waist beam 13 is equivalent to the above-mentioned first vehicle beam, and both ends of the waist beam 13 are provided with a space for the connecting plate 153 at both ends of the groove three 132 (not shown in the figure), the groove three 132 and The abdication grooves together constitute the first installation groove of the above-mentioned first vehicle beam; the front side pillars 32 and the rear side pillars 42 are equivalent to the above-mentioned second vehicle beams, and the grooves of the front side pillars 32 and the rear side pillars 42 The two 122 respectively constitute the second installation grooves of the above-mentioned second vehicle beam. The specific connection and fixing method thereof is the same as the connection method between the upright column 12 and the waist beam 13 , which can be understood and implemented by those skilled in the art with reference to the above description, so it will not be repeated here.

(3) As a preferred solution: the front top-arc rod 31 and the rear top-arc rod 41 are respectively directly fixed to the top-arc rods 21 on both sides of the top cover bracket 2 through bolts.

1 to 14, as a preferred solution: the cross-section of the left groove one 112, the right groove one 113, the two grooves 122, the three grooves 132 and the four grooves 211 is an isosceles trapezoid; the boss one 151 , boss two 152, boss three 231, boss four 232, boss five 241 and boss six 242 are all connected with left groove one 112, right groove one 113, groove two 122, groove three 132 and concave The four grooves 211 are fitted together. The combined design of the groove and the boss can increase the contact area between the aluminum profile and the connecting piece, and ensure the uniform force between the two, thereby increasing the stability of the structure and improving the bending and torsion resistance of the vehicle. performance, and improve vehicle reliability and safety.

Referring to FIGS. 1 to 14 , as a preferred solution, the cross-sections of the first recess 114 , the second recess 115 and the third recess 133 are all L-shaped. When aluminum profile 1 110, aluminum profile 2 120, aluminum profile 3 130 and aluminum profile 4 210 are applied to the body structure of passenger cars, it is usually necessary to bond glass, window frames, side skins or interior parts of different materials on their outer surfaces. According to the specific use environment of the aluminum profile one 110 and the aluminum profile three 130 (applied to the top side longitudinal beam 11 and the waist beam 13 respectively), the present invention is provided with an L-shaped concave portion on its outer surface, which is used for bonding different thicknesses. Glass, window frames, side skins or interior parts of different materials can ensure that the outer surfaces are in the same plane after bonding, thereby ensuring the aesthetics of the bus.

1 to 14 , it should be noted that when the aluminum profile one 110 , the aluminum profile two 120 , the aluminum profile three 130 and the aluminum profile four 210 are applied to the body structure of a passenger car, in addition to the solution provided in this embodiment, it can also be The actual design needs and structural requirements are flexibly applied to different parts of the bus body or different types of bus bodies. The structural strength of connector one 15, connector two 23 and connector three 24 is from strong to decreasing. Connector one 15 is mainly used for the connection between aluminum profiles that require high structural strength. Part 3 24 is mainly used for the connection between aluminum profiles that require low structural strength. Therefore, when the first connector 15 , the second connector 23 and the third connector 24 are applied to the body structure of a passenger car, in addition to the assembly solution provided in this embodiment, it can also be carried out according to the specific requirements for the structural strength of the specific aluminum profile structure and assembly position, etc. Select Assembly.

The above are only specific embodiments of the present invention, but the design concept of the present invention is not limited to this, and any non-substantial modification of the present invention by using this concept should be regarded as an act of infringing the protection scope of the present invention.

Claims (12)

1. a kind of automobile skeleton, including being mutually connected vertically several tie points constituted by complex root bicycle beam, it is characterised in that: if Doing the tie point includes the first tie point, which connects structure by connector one by the first bicycle beam and the second bicycle beam At；The connector one includes connecting plate and L shape backplate, and the two L shape backplate inner corner trims are disposed opposite to each other outwardly in the connection Board ends, so that the side of connector one be made to form the mounting portion of Qian shape, the other side forms mounting surface；The one of first bicycle beam End is plugged in the mounting portion, and the side wall of second bicycle beam is fixedly arranged on the mounting surface.

2. a kind of automobile skeleton as described in claim 1, it is characterised in that: an overt corner surface of the L shape backplate is equipped with boss One, the connecting plate is provided between the boss one of the two L shape backplates, and forms the mounting portion；First bicycle beam End is equipped with first mounting groove mutually chimeric with the mounting portion.

3. a kind of automobile skeleton as claimed in claim 1 or 2, it is characterised in that: another overt corner surface of the L shape backplate is equipped with Boss two, the boss two of the two L shape backplates form the mounting surface, and the side wall of second bicycle beam is equipped with and the mounting surface Mutually the second chimeric mounting groove.

4. a kind of automobile skeleton as described in claim 1, it is characterised in that: it further include the second tie point, second connection Point is connected and composed by third bicycle beam and the 4th bicycle beam by connector two, and the connector two is L-shaped, two two yin of connector Angle is disposed opposite to each other outwardly in the side wall of the 4th bicycle beam, and middle part is plugged with the third bicycle beam.

5. a kind of automobile skeleton as claimed in claim 4, it is characterised in that: an overt corner surface of the connector two is equipped with boss Three, the two sidewalls of the third bicycle beam are equipped with the third mounting groove chimeric with the boss three-phase.

6. a kind of automobile skeleton as described in claim 4 or 5, it is characterised in that: another overt corner surface of the connector two is set There is boss four, the side wall of the 4th bicycle beam is equipped with fourth mounting groove mutually chimeric with the boss four.

7. a kind of automobile skeleton as claimed in claim 4, it is characterised in that: first bicycle beam, the second bicycle beam, third vehicle Beam, the 4th bicycle beam, connector one and connector two are aluminium alloy extrusions.

8. a kind of automobile skeleton as claimed in claim 4, it is characterised in that: the structural strength of first tie point is greater than institute State the structural strength of the second tie point.

9. a kind of automobile skeleton, including roof frame and side wall frame, the roof frame includes top arc bar and top margin stringer, institute Stating side wall frame includes the column being connected with the top margin stringer, it is characterised in that: the top margin stringer and column are by such as Connector one as claimed in claim 4 connects, and constitutes the first tie point as claimed in claim 4；The two top margin stringers Between top arc bar is provided with described in complex root by connector two as claimed in claim 4, and constitute as claimed in claim 4 The second tie point.

10. a kind of automobile roof frame, including top arc bar and top margin stringer, it is characterised in that: lead between the two top margin stringers It crosses connector two as claimed in claim 4 and is provided with top arc bar described in complex root, and constitute as claimed in claim 4 second Tie point.

11. a kind of automobile side wall frame, including top margin stringer, waist rail, bottom edge stringer and column, it is characterised in that: the waist rail Column described in complex root is provided with by connector one as described in claim 1 between top margin stringer, bottom edge stringer, and Constitute the first tie point as described in claim 1.

12. a kind of automobile side wall frame, including top margin stringer, waist rail, bottom edge stringer, reinforcing beam and column, it is characterised in that: institute It states and is provided with described in complex root by connector one as claimed in claim 4 between waist rail and top margin stringer, bottom edge stringer Column, and constitute the first tie point as claimed in claim 4；By as claimed in claim 4 between adjacent two column Connector two be provided with reinforcing beam described in complex root, and constitute the second tie point as claimed in claim 4.