Tubular beam and vehicle body assembling structure

Abstract

The utility model relates to the field of automobiles, and discloses a tubular beam and automobile body assembling structure which comprises a suspension part and a fixing part which are used for being fixedly connected with a tubular beam body, the suspension part comprises a special-shaped plate used for being fixedly connected with the tubular beam body and a positioning pin connected to the special-shaped plate in a sliding mode, and the special-shaped plate comprises a vertical plate and external expansion plates connected up and down. The external expansion plate is connected with the first arc-shaped plate, the tubular beam body is fixedly connected with the special-shaped plate through the first arc-shaped plate, the tubular beam body interacts with a preformed hole of a vehicle body through a positioning pin to be hung, the fixing piece comprises a fixing plate and a second arc-shaped plate fixed to the fixing plate, and the second arc-shaped plate is also used for being fixedly connected with the tubular beam body. The fixing plate is used for being fixedly connected with a vehicle body. The mounting efficiency and precision of the assembly can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile, concretely relates to a pipe beam and car body assembly structure. BACKGROUND

[0002] The steering welding assembly is an important component of the bogie, is used for transmitting traction and various impact loads in the running process, directly influences the stability, safety and comfort of train operation, the main function of the instrument panel is to support the instrument panel ornaments and other components, and the instrument panel cross beam is fixed on the car body, and the instrument panel is located above the steering welding assembly.

[0003] Different car models have several assembly structures of the steering welding assembly, one kind of assembly structure is to weld fixing bolts on both sides of the car body as force supporting points during assembly, the steering support welding assembly is hung on the bolt, the pipe beam is connected and limited with the car body, the pipe beam is manually lifted during the assembly of the steering support welding assembly, and the pipe beams on both sides are fixed and connected respectively, and the assembly method can cause uneven force on both sides, cause poor consistency of the gap between the pipe beams on both sides and the car body, and the installation efficiency is low, and the quality problem is prone to rework, unnecessary loss is caused. UTILITY MODEL CONTENTS

[0004] The utility model intends to provide a pipe beam and car body assembly structure to solve the problem of low pipe beam installation efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: including the suspension piece and the fixed part for being fixedly connected with the pipe beam body, the suspension piece is used to hang the pipe beam body on the car body, and the fixed part is used to fix the pipe beam body on the car body.

[0006] The beneficial effects of the scheme are that before the pipe beam body and the car body are assembled, the pipe beam body is fixedly connected with the fixed part and the suspension piece respectively, the pipe beam body on both ends is hung on the car body through the suspension piece during installation, and then the suspension piece and the positioning piece are fixedly connected with the car body respectively, compared with the prior art, the assembly speed and the accuracy can be ensured.

[0007] Preferably, the suspension piece includes the special-shaped plate fixedly connected with the pipe beam body and the positioning pin slidingly connected with the special-shaped plate, the special-shaped plate is formed with a sliding cavity and a fixing cavity, the fixing cavity and the sliding cavity are communicated, the fixing cavity is used to fix the pipe beam body, the sliding cavity is used to slide the positioning pin, and the positioning pin is used to hang the car body.

[0008] Preferably, the profiled plate comprises a vertical plate, and outer expansion plates are fixedly arranged on the upper and lower sides of the vertical plate, and first arc-shaped plates are arranged at the ends of the upper and lower outer expansion plates, and a fixed cavity is formed between the upper and lower first arc-shaped plates, and the curvature radius of the first arc-shaped plates is equal to the curvature radius of the cylindrical surface of the tubular beam body, and a sliding cavity is formed between the vertical plate and the upper and lower outer expansion plates.

[0009] Preferably, the ends of the upper and lower first arc-shaped plates are fixedly arranged with upper and lower support plates respectively, and the upper and lower support plates are used for connecting with the vehicle body, and the upper support plate is also used for connecting with the instrument panel.

[0010] The upper support plate is connected with the instrument panel, and can support the instrument panel; generally, the instrument panel is prone to deformation or collapse under high temperature environment, and the thermal expansion coefficient of the material of the instrument panel is unbalanced when the temperature rises, thereby causing structural deformation, in addition, the platform on the instrument panel is exposed to sunlight for a long time, which can cause photoaging and thermal aging, and further aggravate the deformation problem; therefore, compared with the prior art, the upper support plate can support the instrument panel, effectively prevent the instrument panel from collapsing, and improve the durability and persistence of the instrument panel.

[0011] Preferably, the vertical plate is provided with a sliding hole for the positioning pin to slide, and a clamping plate is fixedly arranged at the end of the positioning pin in the sliding cavity, and the size of the clamping plate is greater than the size of the sliding hole.

[0012] The clamping plate can prevent the positioning pin from sliding out of the sliding cavity.

[0013] Preferably, the positioning pin comprises a sliding rod in the sliding cavity and a hanging rod fixedly connected to the end of the sliding rod away from the sliding cavity, the hanging rod is coaxially arranged with the sliding rod, the end of the sliding rod close to the hanging rod is conically arranged, and a clamping groove is formed between the sliding rod and the hanging rod.

[0014] When the vehicle body is designed and mass-produced, a reserved hole for the positioning pin to hang is arranged at the corresponding position, the positioning pin is inserted into the reserved hole during installation, the cylindrical surface at the bottom end of the positioning pin is in frictional contact with the inner ring at the bottom end of the reserved hole under the action of gravity, when the positioning pin slides to the clamping groove, the vehicle body plate is clamped with the positioning pin through the reserved hole, the end surface of the hanging rod abuts against the vehicle body plate, and the taper surface of the sliding rod abuts against the inner ring of the reserved hole, after the installation is completed, when the vehicle body runs, the end surface of the hanging rod can prevent the positioning pin from sliding from the reserved hole to the sliding groove, and the taper surface can reduce the tendency of the positioning pin to slide from the reserved hole to the hanging rod, thereby preventing the phenomenon of overall retreat after assembly.

[0015] Preferably, the fixing member comprises a fixing plate and a second arc-shaped plate, the second arc-shaped plate is fixedly connected with the fixing plate, the curvature radius of the second arc-shaped plate is equal to the curvature radius of the cylindrical surface of the pipe beam body, and the second arc-shaped plate is also used for fixing the pipe beam body, and the fixing plate is used for being fixedly connected with the vehicle body.

[0016] Preferably, the upper support plate, the lower support plate and the fixing plate are all provided with mounting holes for being fixedly connected with the vehicle body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 4 is a structural schematic view of a pipe beam assembly structure mounted on a vehicle body according to an embodiment of the present application;

[0018] Figure 2 FIG. 5 is a structural schematic view of a suspension member and a fixing member fixedly connected with a pipe beam according to an embodiment of the present application;

[0019] Figure 3 FIG. 6 is a structural schematic view of a special-shaped plate according to an embodiment of the present application;

[0020] Figure 4 FIG. 7 is a structural schematic view of a positioning pin according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] The application will be further described in detail through specific embodiments:

[0022] The reference signs in the drawings of the specification comprise: a suspension member 1, a special-shaped plate 11, a sliding cavity 111, a fixing cavity 112, a vertical plate 113, a sliding hole 1131, an outward expansion plate 114, a first arc-shaped plate 115, an upper support plate 116, a lower support plate 117, a positioning pin 12, a sliding rod 121, a clamping plate 1211, a suspension rod 122, a clamping table 123, a fixing member 2, a fixing plate 21, a second arc-shaped plate 22, an instrument panel 3, a pipe beam body 4, and mounting holes 5.

[0023] EMBODIMENT

[0024] A pipe beam and vehicle body assembly structure, like Figures 1-3As shown, including for and pipe beam body 4 fixed welding suspension 1 and fixed 2, suspension 1 includes special-shaped plate 11 and positioning pin 12, special-shaped plate 11 is used for and pipe beam body 4 welding, positioning pin 12 is slidingly connected to special-shaped plate 11, special-shaped plate 11 includes vertical plate 113, vertical plate 113 upper and lower ends are integrally formed with outer expansion plate 114, the end of the outer expansion plate 114 on both sides is integrally formed with first arc-shaped plate 115, the curvature radius of first arc-shaped plate 115 is equal to the curvature radius of the outer cylindrical surface of pipe beam body 4, the fixed cavity 112 is formed between the first arc-shaped plates 115 on both sides, the sliding cavity 111 is formed between the vertical plate 113 and the outer expansion plate 114 on both sides, the sliding cavity 111 and the fixed cavity 112 are communicated, the sliding hole 1131 is opened in the vertical plate 113, the positioning rod is slidingly connected in the sliding hole 1131, the first arc-shaped plate 115 is fixedly welded with the outer cylindrical surface of pipe beam body 4 before the overall installation of the assembly, so that the pipe beam body 4 is fixed in the fixed cavity 112; the end of the first arc-shaped plate 115 on both sides is integrally formed with upper support plate 116 and lower support plate 117 respectively, the mounting hole 5 is opened in the upper support plate 116 and the lower support plate 117, the upper support plate 116 and the lower support plate 117 are fixedly connected with the vehicle body through the mounting hole 5, the top end of the upper support plate 116 is bent, the upper support plate 116 is fixedly connected with the instrument panel 3 through the mounting hole 5, the upper support plate 116 can support the instrument panel 3, prevent the instrument panel 3 from being deformed and collapsed due to heat.

[0025] As Figures 2-4As shown, the positioning pin 12 includes a sliding rod 121 and a hanging rod 122, the sliding rod 121 is provided in the sliding hole 1131 and extends into the sliding cavity 111, the end of the sliding rod 121 is fixed with a clamping plate 1211, the clamping plate 1211 is circular and its diameter is larger than the diameter of the sliding hole 1131, so as to prevent the positioning pin 12 from sliding out of the sliding cavity 111, the end of the sliding rod 121 away from the sliding cavity 111 is fixedly connected with the hanging rod 122, the hanging rod 122 is integrally formed with the sliding rod 121, the axial cross-sectional dimension of the hanging rod 122 is the same as that of the sliding rod 121, and the hanging rod 122 is coaxially arranged with the sliding rod 121, the end of the sliding rod 121 close to the hanging rod 122 is provided in a conical shape and is fixedly connected with the end of the hanging rod 122, the clamping table 123 is formed at the connection between the hanging rod 122 and the sliding rod 121, when the positioning rod is inserted into the reserved hole of the vehicle body, the vehicle body is designed and mass-produced to have a reserved hole for suspending the positioning pin 12 at the corresponding position, the positioning pin 12 is inserted into the reserved hole during installation, and the bottom end of the positioning pin 12 is in frictional contact with the inner ring of the bottom end of the reserved hole under the action of gravity, when the positioning pin 12 slides to the clamping table 123, the vehicle body plate is clamped with the positioning pin 12 through the reserved hole, the end surface of the vehicle body plate abuts against the end surface of the hanging rod 122, and the conical surface of the sliding rod 121 abuts against the inner ring of the reserved hole, after the installation is completed, when the vehicle body runs, the end surface of the hanging rod 122 can prevent the positioning pin 12 from sliding from the reserved hole to the sliding groove, and the conical surface can reduce the tendency of the positioning pin 12 to slide from the reserved hole to the hanging rod 122, so as to prevent the phenomenon of overall backward movement after the assembly is assembled.

[0026] As Figure 2 shown, the fixing member 2 includes a fixed plate 21 and a second arc-shaped plate 22, the curvature radius of the second arc-shaped plate 22 is equal to that of the outer cylindrical surface of the tubular beam body 4, the fixed plate 21 is integrally formed with the second arc-shaped plate 22, and a plurality of mounting holes 5 are formed in the fixed plate 21, the outer cylindrical surface of the tubular beam body 4 is fixedly welded with the second arc-shaped plate 22 before installation, and the fixed plate 21 is fixedly connected with the vehicle body through the mounting holes 5 during installation.

[0027] The working principle is as follows: before installation, the outer column surface of the pipe beam body 4 is welded with the first arc-shaped plate 115, so as to fix the pipe beam body 4 in the fixing cavity 112 of the special-shaped plate 11, so as to fix and connect the pipe beam body 4 and the suspension piece 1, and at the same time, the outer column surface of the pipe beam body 4 is welded with the second arc-shaped plate 22, so as to fix and connect the pipe beam body 4 and the fixing piece 2; when installing, the pipe beam is lifted to insert the positioning pin 12 into the reserved hole of the vehicle body, since the positioning pin 12 bears the weight of the assembly on the vehicle body, the bottom end outer column surface of the positioning pin 12 abuts against the bottom end of the reserved hole of the vehicle body, the pipe beam is pushed inward, until the clamping table 123 contacts the reserved hole of the vehicle body, the end surface of the suspension rod 122 abuts against the vehicle body, so as to prevent the assembly from being taken out as a whole, after suspension, the fixing plate 21, the upper supporting plate 116 and the lower supporting plate 117 are fixed and connected with the vehicle body through the installation holes 5, and in addition, the upper bent part of the upper supporting plate 116 is fixed and connected with the instrument panel 3 through the installation hole 5, so as to improve the installation efficiency and precision.

[0028] The above is only the embodiment of the present application, and the specific technical solutions and / or common knowledge of characteristics in the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A tubular beam and vehicle body assembly structure, characterized in that: The suspension part is used for suspending the pipe beam body to the vehicle body, and the fixing part is used for fixing the pipe beam body to the vehicle body.

2. A structure for assembling a tube beam and a vehicle body according to claim 1, characterized in that: The suspension part comprises a special-shaped plate fixedly connected with the pipe beam body and a positioning pin slidingly connected with the special-shaped plate.

3. A structure for assembling a tube beam and a vehicle body according to claim 2, characterized in that: The special-shaped plate is formed with a sliding cavity and a fixing cavity, the fixing cavity and the sliding cavity are communicated, the fixing cavity is used for fixing the pipe beam body, and the sliding cavity is used for sliding of the positioning pin.

4. A structure for assembling a tube beam and a vehicle body according to claim 3, characterized in that: The special-shaped plate comprises a vertical plate, and outer expansion plates are fixedly arranged on the upper and lower sides of the vertical plate.

5. A structure for assembling a tube beam and a vehicle body according to claim 4, characterized in that: The first arc-shaped plates are arranged at the ends of the outer expansion plates on the upper and lower sides.

6. A structure for assembling a tube beam and a vehicle body according to claim 5, characterized in that: The fixing cavity is formed between the first arc-shaped plates on the upper and lower sides.

7. A structure for assembling a tube beam and a vehicle body according to claim 6, characterized in that: The first arc-shaped plates on the upper and lower sides are respectively fixedly provided with upper and lower support plates.

8. A structure for assembling a tube beam and a vehicle body according to claim 7, characterized in that: The vertical plate is provided with a sliding hole for sliding of the positioning pin. The end of the positioning pin located in the sliding cavity is fixedly provided with a clamping plate. The clamping plate is larger than the sliding hole in size. The positioning pin comprises a sliding rod located in the sliding cavity and a suspension rod fixedly connected with the sliding rod away from the sliding cavity. The suspension rod is coaxially arranged with the sliding rod. The end of the sliding rod close to the suspension rod is conically arranged. The clamping plate is larger than the sliding hole in size. The fixing part comprises a fixing plate and a second arc-shaped plate. The second arc-shaped plate is fixedly connected with the fixing plate. The second arc-shaped plate is also used for fixing the pipe beam body. The fixing plate is used for fixedly connecting with the vehicle body. The upper and lower support plates and the fixing plate are all provided with mounting holes for fixedly connecting with the vehicle body.

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