CN210941977U - Automobile back door outer plate and automobile - Google Patents

Abstract

The utility model discloses an automobile back door outer plate, which is an integrated sheet metal part and is provided with an upper curved surface, a middle step surface and a lower curved surface which are sequentially connected, wherein the maximum depth value of the middle step surface is greater than a preset depth value; an included angle between the middle step surface and the upper curved surface is larger than a first preset angle value and smaller than a second preset angle value; and the included angle between the middle step surface and the lower curved surface is greater than a third angle preset value and smaller than a fourth angle preset value. The utility model also discloses a car has used foretell car back door planking. The utility model discloses an optimize the degree of depth of going up camber curvature, middle part step face, go up the curved surface and down the curved surface respectively with the R angle etc. of middle part step face to and through the material of selecting high ductility, realized having had the integral type car back door planking of super degree of depth, found angle middle part step face.

Description

Automobile back door outer plate and automobile

Technical Field

The utility model belongs to the automotive appearance molding field, concretely relates to car back door planking and car.

Background

As shown in fig. 1, when the back door of an automobile is molded into an appearance curved surface, the characteristic of an ultra-deep vertical angle step surface 11 often appears; however, when performing the punching analysis on the ultra-deep vertical angle step surface 11, an industry bottleneck is often encountered: in the stamping process, the fatal problem of stamping cracking can be generated, so that the product cannot be normally realized.

In order to solve the problem of punch forming of the characteristic, the current practice in the market is as follows: as shown in fig. 2, the back door outer plate has an expanded upper curved surface 21, an expanded middle step surface 22 and an expanded lower curved surface 23 which are connected in sequence, and the middle step surface is expanded at a large angle to form a large inclination, so that the problem of product stamping cracking is avoided; however, this type of structural processing loses the appearance characteristics required for molding. To ensure that the cross-sectional profile effect shown in fig. 1 can be achieved, there are two methods of treatment, specifically as follows:

1. the sheet metal is integrated and the plastic part is arranged, as shown in fig. 3, the sheet metal of the outer plate 31 is made into a large-gradient step surface, so that the problems of ultra-depth and vertical angle stamping cracking are avoided, and the structural style required by modeling is realized by adding the plastic part 32 (the plastic part can easily realize the ultra-depth and vertical angle step surface) (as shown in fig. 3). However, according to the design scheme, a plastic part is additionally arranged on a complete outer plate, so that the cost of the bicycle (more than 100 yuan) is increased, and the weight of the bicycle (1-2 Kg) is increased; in addition, the plastic part is easily deformed by the influence of temperature, and the problem of poor matching between the gap and the surface difference is caused.

2. The sheet metal blocking and tailor welding design adopts a laser tailor welding process mode to connect the upper outer plate and the lower outer plate in a welding manner. However, the laser tailor-welding process needs additional investment on welding equipment with more than millions of yuan, and increases production procedures and working hours; because the outer plate of the back door belongs to the visible surface of the appearance, welding mark defects can be formed on the appearance after tailor welding, and mouse hole defects are easily formed at the positions of the edge of the inner plate and the outer plate; such a scheme has a congenital unsolved design deficiency.

SUMMERY OF THE UTILITY MODEL

To the technical problem in the background art, the utility model provides a through optimizing technical parameter to and through the material of selecting high ductility, realize having the integral type car back door planking of super degree of depth, vertical angle middle part step face.

The utility model discloses a realize through following technical scheme:

an automobile back door outer plate is an integrated sheet metal part and is provided with an upper curved surface, a middle step surface and a lower curved surface which are sequentially connected, and an included angle between the middle step surface and the upper curved surface is larger than a first preset angle value and smaller than a second preset angle value; and the included angle between the middle step surface and the lower curved surface is greater than a third angle preset value and smaller than a fourth angle preset value.

Further, the upper surface has a varying curvature with a radius of curvature gradually decreasing from the middle to both ends.

Further, the back door outer plate is plated with a zinc material by using DC 07.

Further, the thickness of the back door outer plate is 0.8 mm.

Furthermore, the junction of the upper curved surface and the junction of the lower curved surface and the middle step surface are rounded.

Further, the fillet is gradually reduced from the middle to two sides of the junction.

Further, the preset depth value is 50mm, and the preset first angle value is 90 degrees; the second angle preset value is 110 degrees; the third angle preset value is 74 degrees; the fourth angle preset value is 94 °.

Furthermore, a first license plate lamp mounting hole, a camera mounting hole, an electronic switch mounting hole and a second lighting lamp mounting hole are formed in the step surface of the middle part.

Furthermore, the lower curved surface is provided with a license plate mounting convex hole, an upper mounting hole and a sinking platform.

The utility model also provides a car, used above-mentioned arbitrary car back door planking.

Adopt above-mentioned technical scheme, the utility model relates to a pair of car back door planking and car, through the degree of depth, the upper surface of optimizing upper surface camber, middle part step face and lower curved surface respectively with the R angle etc. of middle part step face to and through selecting the material of high ductility, realized having the integral type car back door planking of the super degree of depth, found angle middle part step face. The utility model relates to a pair of back door planking and car behind car has following advantage:

1. and a single-sequence punch forming process is adopted, so that the investment of a die is saved.

2. The molding characteristic of the middle step surface with ultra-depth and vertical angle can be formed, and the defect formed by the characteristic in the past is avoided; particularly, compared with the tailor-welded structure design, the tailor-welded structure saves tailor-welding procedures, reduces production cost, saves investment of tailor-welding equipment, and reduces product appearance defects of the rat hole caused by tailor-welding; compared with the structural design of the plastic part of the outer covering part, the part is saved, the development cost is reduced for the whole vehicle, meanwhile, the weight is reduced for the whole vehicle, the oil consumption is saved, and the defects of surface difference/clearance and the like caused by the matching of the plastic part are avoided.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

FIG. 1 is a schematic view of a prior art partial construction of an automotive tailgate having an ultra-deep riser step surface;

FIG. 2 is a schematic view of a portion of a prior art automotive tailgate having an extended center step surface;

FIG. 3 is a schematic view of a prior art covering of a plastic part on an automotive tailgate having an extended center step surface;

fig. 4 is a schematic structural view of an outer panel of a back door of an automobile according to an embodiment of the present invention;

FIG. 5 is a top view of FIG. 4;

fig. 6 is a schematic structural view of an upper curved surface of an outer panel of a back door of an automobile according to an embodiment of the present invention;

FIG. 7 is a view E-E of FIG. 6;

fig. 8 is a schematic view of each cross-sectional position of an outer panel of a back door of an automobile according to an embodiment of the present invention.

Wherein the reference numerals in the figures correspond to: 11-super-depth vertical angle step surface, 21-expanded upper curved surface, 22-expanded middle step surface, 23-expanded lower curved surface, 31-outer plate, 32-plastic part, 41-upper curved surface, 42-middle step surface, 43-lower curved surface, 51-first license plate lamp mounting hole, 52-camera mounting hole, 53-electronic switch mounting hole, 54-second license plate lamp mounting hole

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic included in at least one implementation of the invention is based on the embodiment of the invention, and all other embodiments obtained by those skilled in the art without inventive faculty are within the scope of the invention.

The embodiment of the utility model relates to an automobile back door planking formula sheet metal component as an organic whole, as shown in fig. 4, back door planking has consecutive upper surface 41, middle part step face 42 and lower curved surface 43, wherein, as shown in fig. 6 and 7, upper surface 41 has the radian that changes, and its radius of curvature diminishes from the middle to both ends gradually; correspondingly, due to the change of the curvature radius of the upper curved surface 41, the depth of the middle step surface 42 connected with the upper curved surface is also changed, so that the drawing formability of the outer plate is ensured; in the embodiment of the present invention, the maximum depth of the middle step surface 42 is greater than the preset depth value; an included angle between the middle step surface 42 and the upper curved surface 41 is greater than a first preset angle value and smaller than a second preset angle value; an included angle between the middle step surface 42 and the lower curved surface 43 is greater than a third angle preset value and smaller than a fourth angle preset value. In the embodiment of the present invention, the preset depth value is 50mm, the preset first angle value is 90 °, the preset second angle value is 110 °, and the preset third angle value is 74 °; the fourth angle preset value is 94 °. In addition, in the embodiment of the present invention, the middle step surface 42 is further provided with a first license plate lamp mounting hole 51, a camera mounting hole 52, an electronic switch mounting hole 53 and a second license plate lamp mounting hole 54, as shown in fig. 5; in order to ensure the strength of the mounting surface, a license plate mounting convex hole, an upper mounting hole and a sinking platform are formed in the lower curved surface 43, wherein the sinking platform is used for spot welding with a connecting claw of the inner plate; the sinking platform and the license plate mounting convex hole form a pistol-shaped design; on one hand, the area of the welding sinking platform is ensured, and on the other hand, the sinking platform is not exposed after the license plate is installed. The embodiment of the utility model provides an in, back door planking adopts DC07 electroplating zinc material, guarantees the drawability of integral type panel beating, has established the feasible basis of component type nature, and its preferred thickness is 0.8 mm. In the embodiment of the utility model, go up curved surface 41 with lower curved surface 43 with the equal radius angle of juncture of middle part step face 42, just the radius angle by the centre to both sides of juncture reduce gradually.

The invention is further described below in a specific embodiment.

As shown in fig. 6 and 7, the upper curved surface 41 has a varying curvature with a radius of curvature gradually decreasing from the middle to both ends; specifically, the radius of curvature of the middle position of the upper curved surface 41 is 3262 mm; the curvature radius of the two ends is 989 mm; as shown in FIG. 8, the middle section of the middle step surface 42 is set to be A-A, and the sections along A-A to one side every 150mm are set to be B-B/C-C/D-D sections; the maximum depth of the middle step surface is positioned at the A-A section and is 64mm, and the depth of the B-B/C-C/D-D section is 62mm, 47mm and 8.5mm respectively; the included angle between the middle step surface and the upper curved surface is 99 degrees; the included angle between the middle step surface and the lower curved surface is 84 degrees, the junction between the upper curved surface 41 and the middle step surface 42 and the junction between the lower curved surface 43 and the middle step surface are rounded, and the middle position of the junction is provided with a rounded corner of 8 mm; and both sides have rounded corners of 5 mm.

The embodiment of the utility model provides a still provide a car, used foretell car back door planking.

The embodiment of the utility model relates to a back door planking and car behind car, through optimize go up the degree of depth of camber, middle part step face, go up the curved surface and down the curved surface respectively with the R angle etc. of middle part step face to and through the material of selecting high ductility, realized having the integral type back door planking behind car of super degree of depth, vertical angle middle part step face. The embodiment of the utility model adopts a single-sequence punch forming process, thereby saving the investment of the die; the molding characteristic of the middle step surface with ultra-depth and vertical angle can be formed, and the defect formed by the characteristic in the past is avoided; particularly, compared with the tailor-welded structure design, the tailor-welded structure saves tailor-welding procedures, reduces production cost, saves investment of tailor-welding equipment, and reduces product appearance defects of the rat hole caused by tailor-welding; compared with the structural design of the plastic part of the outer covering part, the part is saved, the development cost is reduced for the whole vehicle, meanwhile, the weight is reduced for the whole vehicle, the oil consumption is saved, and the defects of surface difference/clearance and the like caused by the matching of the plastic part are avoided.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims (10)

1. The automobile back door outer plate is characterized in that the back door outer plate is an integrated sheet metal part, the back door outer plate is provided with an upper curved surface (41), a middle step surface (42) and a lower curved surface (43) which are sequentially connected, and the maximum depth value of the middle step surface (42) is greater than a preset depth value; an included angle between the middle step surface (42) and the upper curved surface (41) is larger than a first preset angle value and smaller than a second preset angle value; and the included angle between the middle step surface (42) and the lower curved surface (43) is greater than a third angle preset value and smaller than a fourth angle preset value.

2. The automobile back door outer panel according to claim 1, wherein the upper curved surface (41) has a varying curvature with a radius of curvature gradually decreasing from the middle to both ends.

3. The automobile back door outer panel according to claim 1, wherein the back door outer panel is galvanized with a DC07 zinc plating material.

4. The automobile back door outer panel as claimed in claim 3, wherein the back door outer panel has a thickness of 0.8 mm.

5. The automobile back door outer panel according to claim 1, wherein the junctions of the upper curved surface (41) and the lower curved surface (43) and the middle step surface (42) are rounded.

6. The automobile back door outer panel according to claim 5, wherein the rounded corner gradually decreases from the middle to both sides of the boundary.

7. The automobile back door outer panel according to claim 1, wherein the preset depth value is 50 mm; the first angle is preset by 90 °; the second angle preset value is 110 degrees; the third angle preset value is 74 degrees; the fourth angle preset value is 94 °.

8. The automobile back door outer panel as claimed in any one of claims 1 to 7, wherein the middle step surface (42) is provided with a first license plate lamp mounting hole (51), a camera mounting hole (52), an electronic switch mounting hole (53) and a second license plate lamp mounting hole (54).

9. The automobile back door outer panel according to any one of claims 1 to 7, wherein the lower curved surface (43) is provided with a license plate mounting hole, an upper mounting hole and a sunken platform.

10. An automobile having an automobile rear door outer panel according to any one of claims 1 to 7.

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