Disassembly and assembly positioning structure for plastic rear cover

Abstract

The utility model provides a dismounting positioning structure for a plastic rear cover, which comprises a left nut plate, a left mounting plate, a right nut plate and a right mounting plate, the left nut plate is mounted in the left mounting plate to form a left mounting assembly, and the right nut plate is mounted in the right mounting plate to form a right mounting assembly. And the plastic rear cover is assembled on the rear top cross beam through the left mounting assembly and the right mounting assembly. According to the disassembly and assembly positioning structure for the plastic rear cover, the left nut plate is mounted in the left mounting plate, and the left mounting assembly is formed by the left positioning structure and the left mounting structure; a right nut plate is mounted in a right mounting plate, and a plastic rear cover is assembled on the rear top cross beam through a right mounting assembly formed by a right positioning structure and a right mounting structure, so that self-positioning mounting positioning of the plastic rear cover can be realized, and the matching precision of the plastic rear cover is improved under the condition that a tool is not adopted in the final assembly process; the matching relation of the rear cover, the side wall, the top cover and the like is ensured, and the clearance surface difference is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a disassembly, assembly and positioning structure for a plastic rear cover. Background Art

[0002] Automobile plastic rear covers on the market have significant advantages in terms of weight reduction, cost reduction and design flexibility. In order to improve the competitiveness of the whole vehicle, major mainstream vehicle manufacturers have launched plastic rear covers.

[0003] The plastic rear cover needs to be assembled in the general assembly. At present, the method of using tooling for installation and positioning on the market is adopted. Due to the high flexibility and relatively compact space in the general assembly, it is difficult to arrange the tooling assembly station, and it is necessary to fix the vehicle body and the rear cover, which is likely to cause quality defects such as paint surface scratches; when using the self-positioning method, due to the high requirement for the accuracy of the vehicle body, the repair rate is relatively high, and the repair is difficult. Milling holes are required for repair. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages of the existing plastic rear cover, such as difficult arrangement of the tooling assembly station, the need to fix the vehicle body and the rear cover, easy generation of quality defects of paint surface scratches, relatively high repair rate, difficult repair, and milling holes required for repair, and provide a disassembly, assembly and positioning structure for a plastic rear cover.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a disassembly, assembly and positioning structure for a plastic rear cover, which is used to install the plastic rear cover on the rear roof cross beam of the vehicle body, including a left nut plate, a left mounting plate for mounting the left nut plate to the rear roof cross beam, a right nut plate, and a right mounting plate for mounting the right nut plate to the rear roof cross beam. A left positioning structure is arranged on the left nut plate, a right positioning structure is arranged on the right nut plate, a left mounting structure for cooperating with the left positioning structure is arranged on the left mounting plate, and a right mounting structure for cooperating with the right positioning structure is arranged on the right mounting plate;

[0006] The left nut plate is installed in the left mounting plate to form a left mounting assembly, the right nut plate is installed in the right mounting plate to form a right mounting assembly, and the plastic rear cover is assembled on the rear roof cross beam through the left mounting assembly and the right mounting assembly.

[0007] Further, the left positioning structure is a left fixing hole and a left positioning hole arranged on the left nut plate, and the left mounting structure is a left mounting hole arranged on the left mounting plate.

[0008] Further, the right positioning structure is a right fixing hole and a right positioning hole arranged on the right nut plate, and the right mounting structure is a right mounting hole arranged on the right mounting plate.

[0009] Further, the left fixing hole is a threaded hole, and the left positioning hole is a clearance hole.

[0010] Further, the right fixing hole is a threaded hole, and the right positioning hole is an oblong hole.

[0011] Further, the left mounting hole and the left positioning hole are concentrically arranged, and the aperture of the left mounting hole is larger than that of the left positioning hole.

[0012] Further, the right mounting hole and the right positioning hole are concentrically arranged, and the aperture of the right mounting hole is larger than that of the right positioning hole.

[0013] Further, a first left welding edge and a second left welding edge are further provided around the left mounting plate, and the left nut plate and the left mounting plate are welded to the rear top cross member through the first left welding edge and the second left welding edge.

[0014] Further, a first right welding edge and a second right welding edge are further provided around the right mounting plate, and the right nut plate and the right mounting plate are welded to the rear top cross member through the first right welding edge and the second right welding edge.

[0015] Further, a left hinge mounting hole and a right hinge mounting hole are further provided on the rear top cross member.

[0016] The beneficial effect of the disassembly and assembly positioning structure for a plastic rear cover provided by the present utility model is as follows: By installing the left nut plate in the left mounting plate and forming a left mounting assembly using the left positioning structure and the left mounting structure, and installing the right nut plate in the right mounting plate and forming a right mounting assembly using the right positioning structure and the right mounting structure to assemble the plastic rear cover on the rear top cross member, self-positioning installation and positioning of the plastic rear cover can be achieved, improving the matching accuracy of the plastic rear cover without using tooling during the general assembly process, ensuring the fitting relationships with the side wall and the roof cover, etc., and effectively ensuring the gap and flushness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the left nut plate in the disassembly and assembly positioning structure for a plastic rear cover provided by the present utility model;

[0018] Figure 2 is a schematic structural view of the left mounting plate in the disassembly and assembly positioning structure for a plastic rear cover provided by the present utility model;

[0019] Figure 3 is a schematic structural view of the left mounting assembly in the disassembly and assembly positioning structure for a plastic rear cover provided by the present utility model;

[0020] Figure 4Schematic diagram of the right nut plate in the disassembly and assembly positioning structure for the plastic rear cover provided by the present utility model;

[0021] Figure 5 Schematic diagram of the right mounting plate in the disassembly and assembly positioning structure for the plastic rear cover provided by the present utility model;

[0022] Figure 6 Schematic diagram of the right mounting assembly in the disassembly and assembly positioning structure for the plastic rear cover provided by the present utility model;

[0023] Figure 7 Assembly diagram of the disassembly and assembly positioning structure for the plastic rear cover provided by the present utility model.

[0024] In the figure:

[0025] 100 - Disassembly and assembly positioning structure for the plastic rear cover,

[0026] 10 - Left nut plate, 11 - Left mounting hole, 12 - Left positioning hole, 20 - Left mounting plate, 21 - Left mounting hole, 22 - First left welding edge, 23 - Second left welding edge, 30 - Right nut plate, 31 - Right fixing hole,

[0027] 32 - Right positioning hole, 40 - Right mounting plate, 41 - Right mounting hole, 42 - First right welding edge,

[0028] 43 - Second right welding edge, 50 - Rear top crossbeam, 60 - Left hinge mounting hole, 70 - Right hinge mounting hole. Specific embodiments

[0029] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] See Figure 1-7, a disassembly and assembly positioning structure 100 for a plastic rear cover provided by the present utility model. The disassembly and assembly positioning structure 100 for the plastic rear cover is used to install the plastic rear cover on the rear top cross member 50 of the vehicle body, and includes a left nut plate 10, a left mounting plate 20 for mounting the left nut plate 10 to the rear top cross member 50, a right nut plate 30, and a right mounting plate 40 for mounting the right nut plate 30 to the rear top cross member 50. A left positioning structure is provided on the left nut plate 10, a right positioning structure is provided on the right nut plate 30, a left mounting structure for cooperating with the left positioning structure is provided on the left mounting plate 20, and a right mounting structure for cooperating with the right positioning structure is provided on the right mounting plate 40; the left nut plate 10 is installed in the left mounting plate 20 to form a left mounting assembly, the right nut plate 30 is installed in the right mounting plate 40 to form a right mounting assembly, and the plastic rear cover is assembled on the rear top cross member 50 through the left mounting assembly and the right mounting assembly. The disassembly and assembly positioning structure 100 for the plastic rear cover provided by the present utility model can realize the self-positioning installation and positioning of the plastic rear cover by installing the left nut plate 10 in the left mounting plate 20 and using the left mounting assembly formed by the left positioning structure and the left mounting structure, and installing the right nut plate 30 in the right mounting plate 40 and using the right mounting assembly formed by the right positioning structure and the right mounting structure to assemble the plastic rear cover on the rear top cross member 50. Without using tooling during the general assembly process, it can improve the matching accuracy of the plastic rear cover, ensure the fitting relationship between the rear cover and the side wall, roof, etc., and effectively ensure the gap and flushness.

[0031] Such as Figure 1-6As shown, in the embodiment provided by the present utility model, the left positioning structure is the left fixing hole 11 and the left positioning hole 12 provided on the left nut plate 10, and the left mounting structure is the left mounting hole 21 provided on the left mounting plate 20. The right positioning structure is the right fixing hole 31 and the right positioning hole 32 provided on the right nut plate 30, and the right mounting structure is the right mounting hole 41 provided on the right mounting plate 40. In addition, the left hinge mounting hole 60 and the right hinge mounting hole 70 are also provided on the rear top crossbeam 50. The assembly steps of the dismounting and positioning structure 100 for the plastic rear cover are as follows: First, install the left nut plate 10 and the right nut plate 30 into the left mounting plate 20 and the right mounting plate 40 respectively, and weld and fix the left mounting plate 20 and the right mounting plate 40 to the rear top crossbeam 50; then use locking parts such as bolts, studs, pins and nuts to pass through the left positioning hole 12 and the right positioning hole 32 on the plastic rear cover, the left nut plate 10 and the right nut plate 30, and the left mounting hole 21 and the right mounting hole 41 of the left mounting plate 20 and the right mounting plate 40, so that the plastic rear cover is assembled to the rear top crossbeam 50 through the left mounting assembly and the right mounting assembly, and perform fine adjustment to meet the target requirements of DTS (Dimension Technical Specification), and synchronously use locking parts such as bolts, studs, pins and nuts to install the left hinge and the right hinge into the left hinge mounting hole 60 and the right hinge mounting hole 70 respectively; then use locking parts such as bolts, studs, pins and nuts to lock into the left fixing hole 11 and the right fixing hole 31 on the left nut plate 10 and the right nut plate 30, so as to ensure that there is no relative movement between the left nut plate 10 and the right nut plate 30 relative to the rear top crossbeam 50 of the vehicle body; then remove the locking parts in the left positioning hole 12 and the right positioning hole 32 on the left nut plate 10 and the right nut plate 30, and remove the plastic rear cover from the rear top crossbeam 50; finally, during general assembly, use locking parts to pass through the left positioning hole 12 and the right positioning hole 32 on the plastic rear cover, the left nut plate 10 and the right nut plate 30, and the left mounting hole 21 and the right mounting hole 41 of the left mounting plate 20 and the right mounting plate 40 to complete the operation of assembling the plastic rear cover to the rear top crossbeam 50 of the vehicle body.

[0032] As Figure 1 and Figure 3As shown, in the embodiments provided by the present utility model, the left fixing hole 11 is a threaded hole, the left positioning hole 12 is a clearance hole, and the right fixing hole 31 is a threaded hole, and the right positioning hole 32 is an oblong hole. Since an M10 nut is used for installing the plastic rear cover on the rear top cross beam 50 of the vehicle body, the left fixing hole 11 is an M8 threaded hole, the left positioning hole 12 is a clearance hole with a diameter of Φ10.2, the right fixing hole 31 is also an M8 threaded hole, and the right positioning hole 32 is a Y-direction oblong hole with a diameter of Φ10.2X14, thus effectively ensuring the stability of the left nut plate 10 and the right nut plate 30 fixed and installed in the left mounting plate 20 and the right mounting plate 40, as well as the stability of the plastic rear cover assembled on the rear top cross beam 50 through the left positioning hole 12 and the right positioning hole 32. In addition, by setting the right positioning hole 32 as a Y-direction oblong hole with a diameter of Φ10.2X14, a certain assembly tolerance can be obtained when the plastic rear cover is assembled on the rear top cross beam 50 through the left positioning hole 12 and the right positioning hole 32, thereby improving the adaptability of the disassembly and assembly positioning structure 100 for the plastic rear cover while ensuring the stability of the plastic rear cover assembled on the rear top cross beam 50 through the left positioning hole 12 and the right positioning hole 32.

[0033] As Figure 3 and Figure 6 shown, the left mounting hole 21 provided by the present utility model is concentric with the left positioning hole 12, and the diameter of the left mounting hole 21 is larger than that of the left positioning hole 12. The right mounting hole 41 is concentric with the right positioning hole 32, and the diameter of the right mounting hole 41 is larger than that of the right positioning hole 32. By setting the left mounting hole 21 concentric with the left positioning hole 12 and the right mounting hole 41 concentric with the right positioning hole 32, the concentricity between the left mounting hole 21 and the left positioning hole 12 and between the right mounting hole 41 and the right positioning hole 32 can be effectively ensured, thereby further improving the stability of the plastic rear cover assembled on the rear top cross beam 50 through the left positioning hole 12 and the right positioning hole 32. In addition, since the diameter of the left mounting hole 21 is larger than that of the left positioning hole 12 and the diameter of the right mounting hole 41 is larger than that of the right positioning hole 32, when the locking member passes through the left positioning hole 12 and the right positioning hole 32 on the plastic rear cover, the left nut plate 10 and the right nut plate 30, as well as the left mounting hole 21 and the right mounting hole 41 of the left mounting plate 20 and the right mounting plate 40, a certain assembly tolerance can be obtained, further improving the adaptability of the disassembly and assembly positioning structure 100 for the plastic rear cover while ensuring the stability of the plastic rear cover assembled on the rear top cross beam 50 through the left positioning hole 12 and the right positioning hole 32.

[0034] As Figure 2 and Figure 5As shown in the figure, the first left welding edge 22 and the second left welding edge 23 are further provided around the left mounting plate 20, and the left nut plate 10 and the left mounting plate 20 are welded to the rear top cross beam 50 through the first left welding edge 22 and the second left welding edge 23. The first right welding edge 42 and the second right welding edge 43 are further provided around the right mounting plate 40, and the right nut plate 30 and the right mounting plate 40 are welded to the rear top cross beam 50 through the first right welding edge 42 and the second right welding edge 43. By welding and fixing the left mounting plate 20 and the right mounting plate 40 to the rear top cross beam 50 through the first left welding edge 22, the second left welding edge 23, the first right welding edge 42 and the second right welding edge 43 respectively, the stability of the left mounting plate 20 and the right mounting plate 40 fixed to the rear top cross beam 50 can be effectively ensured, so as to ensure the stability of the left nut plate 10 and the right nut plate 30 mounted on the rear top cross beam 50 through the left mounting plate 20 and the right mounting plate 40, and further improve the stability of the plastic rear cover assembled on the rear top cross beam 50 through the left mounting assembly and the right mounting assembly.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A disassembly and assembly positioning structure for a plastic rear cover, which is used to install the plastic rear cover on the rear top cross beam (50) of a vehicle body, characterized in that, It includes a left nut plate (10), a left mounting plate (20) for mounting the left nut plate (10) onto the rear top crossbeam (50), a right nut plate (30), and a right mounting plate (40) for mounting the right nut plate (30) onto the rear top crossbeam (50). A left positioning structure is provided on the left nut plate (10), a right positioning structure is provided on the right nut plate (30), a left mounting structure for cooperating with the left positioning structure is provided on the left mounting plate (20), and a right mounting structure for cooperating with the right positioning structure is provided on the right mounting plate (40). The left nut plate (10) is mounted within the left mounting plate (20) to form a left mounting assembly, the right nut plate (30) is mounted within the right mounting plate (40) to form a right mounting assembly, and the plastic rear cover is assembled onto the rear top crossbeam (50) through the left mounting assembly and the right mounting assembly.

2. The disassembly and assembly positioning structure for a plastic rear cover according to claim 1, characterized in that, The left positioning structure is a left fixing hole (11) and a left positioning hole (12) provided on the left nut plate (10), and the left mounting structure is a left mounting hole (21) provided on the left mounting plate (20).

3. The disassembly and assembly positioning structure for a plastic rear cover according to claim 2, characterized in that, The right positioning structure is a right fixing hole (31) and a right positioning hole (32) provided on the right nut plate (30), and the right mounting structure is a right mounting hole (41) provided on the right mounting plate (40).

4. The disassembly and assembly positioning structure for a plastic rear cover according to claim 2, characterized in that, The left fixing hole (11) is a threaded hole, and the left positioning hole (12) is a smooth hole.

5. The disassembly and assembly positioning structure for a plastic rear cover according to claim 3, wherein The right fixing hole (31) is a threaded hole, and the right positioning hole (32) is an oblong hole.

6. The disassembly and assembly positioning structure for a plastic rear cover according to claim 2, characterized in that, The left mounting hole (21) is concentric with the left positioning hole (12), and the diameter of the left mounting hole (21) is larger than the diameter of the left positioning hole (12).

7. The disassembly and assembly positioning structure for a plastic rear cover according to claim 3, characterized in that, The right mounting hole (41) is concentric with the right positioning hole (32), and the diameter of the right mounting hole (41) is larger than the diameter of the right positioning hole (32).

8. The disassembly and assembly positioning structure for a plastic rear cover according to claim 2, characterized in that, First left welding edges (22) and second left welding edges (23) are further provided around the left mounting plate (20), and the left nut plate (10) and the left mounting plate (20) are welded onto the rear top crossbeam (50) through the first left welding edges (22) and the second left welding edges (23).

9. The disassembly and assembly positioning structure for a plastic rear cover according to claim 3, characterized in that, First right welding edges (42) and second right welding edges (43) are further provided around the right mounting plate (40), and the right nut plate (30) and the right mounting plate (40) are welded onto the rear top crossbeam (50) through the first right welding edges (42) and the second right welding edges (43).

10. A disassembly and assembly positioning structure for a plastic rear cover according to claim 1, characterized in that, Left hinge mounting holes (60) and right hinge mounting holes (70) are further provided on the rear top crossbeam (50).

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