Integrated rear vehicle body

Abstract

The utility model discloses an integrated rear vehicle body which comprises rear vehicle body side beams, a rear vehicle body rear cross beam and a rear vehicle body front cross beam, and the rear vehicle body rear cross beam and the rear vehicle body front cross beam are arranged between the two rear vehicle body side beams. A boss is arranged on the top face of the rear vehicle body edge beam, a limiting protrusion is arranged on the top face of the boss, the sectional area of the limiting protrusion is smaller than that of the boss, a chassis is arranged on the bottom face of the rear vehicle body edge beam, and the chassis is arranged below the boss. According to the utility model, the clamping positioning point is arranged on the top surface of the rear vehicle body edge beam, and the other clamping positioning point is arranged on the bottom surface of the rear vehicle body edge beam, so that acting force can be applied to the top surface of the rear vehicle body edge beam and the bottom surface of the rear vehicle body edge beam without being influenced by other parts of the rear vehicle body edge beam, and the rear vehicle body can be clamped and positioned by adopting a clamp; and the follow-up hanger can conveniently fix the rear vehicle body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile component, concretely relates to an integrated rear body. BACKGROUND

[0002] With the continuous development of automobile industry, the safety, energy saving and environmental protection and intelligent problems become the theme of the development of the world automobile industry, and the light weight of automobile is the inevitable trend of future development, that is, the weight of the vehicle body is reduced while the safety of the vehicle body is ensured.

[0003] The rear body of the automobile is connected by welding each part together, which causes the rear body to have the disadvantages of low structural strength and easy cracking of welding points. In view of the technical problem, the prior art discloses a utility model patent with the name of rear body structure and automobile (authorized publication number: CN217893021U), which is integrally pressure cast, so that the rear body structure as a whole can have better structural strength and torsional stiffness.

[0004] In order to ensure the quality and safety of the vehicle, in the process of automobile manufacturing, electrophoresis treatment is used for the coating of the rear body, so that the automobile can have better corrosion resistance, longer service life and more beautiful appearance, such as the prior art discloses an invention patent with the name of a rear body locking device and locking method of electrophoretic lifting appliance (authorized publication number: CN103668400B).

[0005] Before electrophoresis treatment, the rear body is clamped and positioned by using a clamp, and then the rear body is fixed by using a lifting appliance, and then the clamp is loosened, and the rear body is placed in the groove station by using the lifting appliance, and the electrophoresis treatment is carried out. The shape of the rear body is irregular, and the reinforcing strips are arranged, so that the clamp is difficult to clamp and position the rear body. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the above technical problems existing in the prior art, and provides an integrated rear body, which sets clamping and positioning points on the top surface of the rear body side beam, and sets another clamping and positioning point on the bottom surface of the rear body side beam, can exert force on the top surface of the rear body side beam and the bottom surface of the rear body side beam, is not affected by other parts of the rear body side beam, can clamp and position the rear body by using a clamp, and is convenient for subsequent lifting appliance to fix the rear body.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0008] An integrated rear body comprises a rear body side beam, a rear body rear cross beam and a rear body front cross beam, the rear body rear cross beam and the rear body front cross beam are arranged between the two rear body side beams; characterized in that: the top surface of the rear body side beam is provided with a boss, the top surface of the boss is provided with a limiting protrusion, the cross-sectional area of the limiting protrusion is smaller than that of the boss, and the bottom surface of the rear body side beam is provided with a chassis, which is arranged below the boss.

[0009] Further, two parallel bosses are arranged on the rear body side beam to increase the acting range on the top surface of the rear body side beam and improve the clamping stability of the clamp on the rear body side beam.

[0010] Further, the two bosses on the same rear body side beam are provided with a connecting piece to improve the connecting strength between the two bosses and further increase the stress capacity of the bosses.

[0011] Further, considering that the rear body is an integrated structure, in order to avoid damage to the connecting piece during forming, the connecting piece is specifically designed: the connecting piece comprises a protruding part provided with a connecting protrusion, a reinforcing strip one is arranged between the connecting protrusion and the boss, the width of the connecting protrusion is greater than that of the reinforcing strip one, so that two sections of the reinforcing strip one are arranged between the two bosses, the forming length of the reinforcing strip one is reduced, and the connecting protrusion has sufficient area and the reinforcing strip one is integrally formed, so as to ensure the forming quality and strength of the connecting piece.

[0012] Further, the top surface of the rear body side beam is provided with a mounting protrusion, the mounting protrusion and the connecting piece are provided with a connecting part to increase the strength of the connecting piece and further improve the stress capacity of the bosses.

[0013] Further, the bottom surface of the rear body side beam is provided with a reinforcing strip two, the reinforcing strip two is fixedly connected with the chassis to increase the connecting strength between the chassis and the rear body side beam and increase the stress capacity of the chassis.

[0014] Further, the bottom surface of the rear body front cross beam and the bottom surface of the rear body rear cross beam are provided with a reinforcing strip three, the reinforcing strip three is arranged in cross, which can significantly improve the overall rigidity of the body structure, so that the body can better resist deformation when subjected to external force, thereby improving the stability and safety of the vehicle.

[0015] Further, a single rear body side beam is provided with at least two lifting protrusions, the lifting protrusions are provided with through holes, the steel wire ropes of the lifting device can be inserted into the through holes of the lifting protrusions, and the rear body can be placed in the groove position through the lifting device.

[0016] Further, the outer side of the rear body side beam is provided with a reinforcing strip four, the reinforcing strip four is arranged in cross, and the reinforcing strip four is arranged below the lifting protrusion to increase the strength of the outer side of the rear body side beam and meet the lifting requirements of the rear body side beam.

[0017] Further, the rear vehicle body side beam is provided with a mounting portion and an edge portion, the mounting portion is provided with a mounting hole one, and the edge portion is provided with a mounting hole two.

[0018] The utility model discloses a rear vehicle body side beam top surface is provided with the boss, and the boss is as clamping positioning point, and simultaneously rear vehicle body side beam bottom surface is provided with chassis, and the chassis is as another clamping positioning point.

[0019] The utility model discloses a rear vehicle body side beam top surface is provided with the boss, and the boss is as clamping positioning point, and simultaneously rear vehicle body side beam bottom surface is provided with chassis, and the chassis is as another clamping positioning point. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model discloses a rear vehicle body side beam top surface is provided with the boss, and the boss is as clamping positioning point, and simultaneously rear vehicle body side beam bottom surface is provided with chassis, and the chassis is as another clamping positioning point.

[0021] Figure 1 For the planar view of the utility model discloses a one-piece rear vehicle body;

[0022] Figure 2 For the planar view of the utility model discloses a one-piece rear vehicle body;

[0023] Figure 3 For Figure 1 The structure enlarged schematic view of A place in middle;

[0024] Figure 4 For Figure 1 The left view of;

[0025] Figure 5 For Figure 1 The right view of.

[0026] In the drawing, 1-rear vehicle body side beam;2-rear vehicle body rear cross beam;3-rear vehicle body front cross beam;4-boss;5-limit protrusion;6-protruding portion;7-connection protrusion;8-strengthening strip one;9-mounting protrusion;10-connection portion;11-chassis;12-strengthening strip two;13-stiffener three;14-hanging and placing protruding block;15-through hole;16-stiffener four;17-edge portion;18-mounting hole two;19-mounting portion;20-mounting hole one. DETAILED DESCRIPTION

[0027] As Figures 1 to 5As shown, the utility model relates to an integrated rear vehicle body, which comprises rear vehicle body side beams 1, a rear vehicle body rear cross beam 2 and a rear vehicle body front cross beam 3, the rear vehicle body rear cross beam 2 and the rear vehicle body front cross beam 3 are arranged between the two rear vehicle body side beams 1. The bottom surface of the rear vehicle body front cross beam 3 and the bottom surface of the rear vehicle body rear cross beam 2 are both provided with stiffeners three 13, the stiffeners three 13 are arranged in a cross manner, which can significantly improve the overall rigidity of the vehicle body structure, so that the vehicle body can better resist deformation when subjected to external force, thereby improving the stability and safety of the vehicle. The rear vehicle body side beam 1 is provided with a mounting portion 19 and an edge portion 17, the mounting portion 19 is provided with a mounting hole one 20, the edge portion 17 is provided with a mounting hole two 18, and the mounting hole one 20 and the mounting hole two 18 are used for the overall mounting of the rear vehicle body.

[0028] The rear vehicle body side beam 1, the rear vehicle body rear cross beam 2 and the rear vehicle body front cross beam 3 of the utility model are integrally pressure die formed, which helps to reduce the overall weight of the vehicle, thereby improving fuel efficiency and performance, and at the same time, the vehicle body parts formed by pressure die usually have fewer welding points and connecting points, which also helps to improve the overall rigidity and stability of the vehicle body.

[0029] The top surface of the rear vehicle body side beam 1 is provided with a boss 4, which serves as a clamping positioning point. The top surface of the boss 4 is provided with a limiting protrusion 5, and the cross-sectional area of the limiting protrusion 5 is smaller than that of the boss 4. The bottom surface of the rear vehicle body side beam 1 is provided with a chassis 11, which is arranged below the boss 4 and serves as another clamping positioning point. When a clamp is used to clamp the rear vehicle body side beam 1, the chassis 11 on the bottom surface of the rear vehicle body side beam 1 is supported on a support table, and the clamping plate on the support table acts on the boss 4 on the top surface of the rear vehicle body side beam 1. At this time, the clamping plate is provided with a groove, the limiting protrusion 5 on the top surface of the boss 4 is embedded in the groove of the clamping plate, the connection stability of the clamp and the rear vehicle body is increased, and then the clamping plate is fixed on the support table by using a bolt to clamp and position the rear vehicle body. The utility model can exert force on the top surface of the rear vehicle body side beam 1 and the bottom surface of the rear vehicle body side beam 1, and is not affected by other components of the rear vehicle body side beam 1, which facilitates subsequent hoist fixing of the rear vehicle body.

[0030] Two parallel bosses 4 are arranged on the rear vehicle body side beam 1, so that the rear vehicle body is provided with four bosses 4, the top surface of the rear vehicle body side beam 1 is increased in the range of action, and the clamping stability of the clamp on the rear vehicle body side beam 1 is improved.

[0031] Two bosses 4 on the same rear body side beam 1 are provided with connecting pieces, which improve the connecting strength between the two bosses 4 and further increase the stress capacity of the bosses 4. Considering that the rear body is an integral molding structure, in order to avoid damage in molding of the connecting pieces, the connecting pieces are specifically designed: the connecting pieces include a protruding part 6, the protruding part 6 is provided with a connecting protrusion 7, a reinforcing strip one 8 is arranged between the connecting protrusion 7 and the boss 4, the width of the connecting protrusion 7 is greater than the width of the reinforcing strip one 8, so that two sections of the reinforcing strip one 8 are arranged between the two bosses 4, the molding length of the reinforcing strip one 8 is reduced, the connecting protrusion 7 has sufficient area and the reinforcing strip one 8 is integrally molded, the molding quality and strength of the connecting pieces are ensured. The top surface of the rear body side beam 1 is provided with a mounting protrusion 9, the mounting protrusion 9 and the connecting pieces are provided with a connecting part 10, the strength of the connecting pieces is increased, and further the stress capacity of the boss 4 is improved.

[0032] The bottom surface of the rear body side beam 1 is provided with a reinforcing strip two 12, the reinforcing strip two 12 is fixedly connected with the chassis 11, the connecting strength between the chassis 11 and the rear body side beam 1 is increased, and the stress capacity of the chassis 11 is increased.

[0033] The single rear body side beam 1 is provided with at least two lifting lugs 14, the lifting lugs 14 are provided with through holes 15, the steel wire ropes of the lifting appliances can be inserted into the through holes 15 of the lifting lugs 14, and the rear body is placed in the groove position through the lifting appliances. The outer side of the rear body side beam 1 is provided with stiffeners four 16, the stiffeners four 16 are arranged in cross, the stiffeners four 16 are arranged below the lifting lugs 14, the strength of the outer side of the rear body side beam 1 is increased, and the lifting requirements of the rear body side beam 1 are met.

[0034] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the present application to solve the basically same technical problem and realize the basically same technical effect is covered in the protection scope of the present application.

Claims

1. An integrated rear body comprising rear body side sills, a rear body rear cross member and a rear body front cross member, the rear body rear cross member and the rear body front cross member being disposed between two of the rear body side sills; characterized by: The top surface of the rear body side beam is provided with a boss, the top surface of the boss is provided with a limiting protrusion, the sectional area of the limiting protrusion is smaller than the sectional area of the boss, and the bottom surface of the rear body side beam is provided with a chassis, which is arranged below the boss.

2. The unitized rear body of claim 1, wherein: Two parallel bosses are arranged on the rear body side beam.

3. A unitized rear body as defined in claim 2, characterized in that: The two bosses on the same rear body side beam are provided with a connecting piece.

4. The unitized rear body of claim 3, wherein: The connecting piece comprises a protruding part, the protruding part is provided with a connecting protrusion, a reinforcing strip one is arranged between the connecting protrusion and the boss, and the width of the connecting protrusion is greater than the width of the reinforcing strip one.

5. The unitized rear body of claim 3, wherein: The top surface of the rear body side beam is provided with a mounting protrusion, and the mounting protrusion and the connecting piece are provided with a connecting part.

6. The unitized rear body of claim 1, wherein: The bottom surface of the rear body side beam is provided with a reinforcing strip two, and the reinforcing strip two is fixedly connected with the chassis.

7. The unitized rear body of claim 1, wherein: The bottom surface of the rear body front cross beam and the bottom surface of the rear body rear cross beam are both provided with a reinforcing strip three, and the reinforcing strip three is arranged in a cross shape.

8. The unitized rear body of claim 1, wherein: A single rear body side beam is provided with at least two lifting protrusions, and the lifting protrusions are provided with through holes.

9. An integrated rear body according to claim 8, characterized in that: The outer side of the rear body side beam is provided with a reinforcing strip four, the reinforcing strip four is arranged in a cross shape, and the reinforcing strip four is arranged below the lifting protrusions.

10. The unitized rear body of claim 1, wherein: The rear body side beam is provided with a mounting part and an edge part, the mounting part is provided with a mounting hole one, and the edge part is provided with a mounting hole two.

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