CN-115782773-B - Automobile part

CN115782773BCN 115782773 BCN115782773 BCN 115782773BCN-115782773-B

Abstract

The invention discloses an automobile part, which comprises a base member and an outer decoration, wherein a U-shaped bulge is arranged on the inner side of the outer decoration, a connecting screw capable of being in threaded connection with the U-shaped bulge is arranged on the base member, a foot pad is arranged on the inner side of the outer decoration, the U-shaped bulge is connected with the outer decoration through the foot pad, the specific connecting method comprises the steps of arranging positioning references in the X direction and the Y direction on the outer side edge of the outer decoration, manufacturing a second positioning member comprising a first positioning reference capable of being positioned on the positioning references in the X direction and a second positioning reference capable of being positioned on the positioning references in the Y direction, fixedly connecting the foot pad on the inner side of the outer decoration, positioning the first positioning reference and the second positioning reference capable of being positioned in the Y direction of the positioning member, accurately positioning the U-shaped bulge, and fixing the U-shaped bulge on the corresponding foot pad. The invention can effectively improve the position accuracy of the threaded hole on the inner side of the inner U-shaped bulge of the outer decorating part, and is convenient for the assembly connection of the outer decorating part and the base member.

Inventors

FANG LIFENG
RAO CONGCHAO
MA YONGXING
CAO DANDAN

Assignees

神通科技集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20221026

Claims (7)

1. The automobile part comprises an inner base member and an outer decoration arranged outside the base member, wherein the inner side of the outer decoration is provided with a U-shaped bulge, the U-shaped bulge comprises a middle transverse plate, vertical plates integrally connected to two ends of the transverse plate and a connecting plate transversely extending outwards from the ends of the vertical plates, so that a mounting gap is formed between left vertical plates and right vertical plates of the U-shaped bulge, and the base member is provided with a connecting screw in threaded connection with the transverse plate, so that the outer decoration and the base member are detachably connected, and the automobile part is characterized in that the inner side of the outer decoration is provided with a foot pad, the connecting plate of the U-shaped bulge is connected with the inner side of the outer decoration through the foot pad, and the U-shaped bulge is connected with the inner side of the outer decoration through a positioning notch or a positioning step close to the U-shaped bulge at the outer side edge of the outer decoration, so that the outer side edge forms a positioning edge, and the first positioning and the second positioning comprise positioning hooks capable of hooking at the positioning edge; a. Setting an X-direction positioning reference and a Y-direction positioning reference at the outer side edge of the outer decoration piece close to the corresponding foot pad position, and manufacturing a positioning member, wherein the positioning member comprises a first positioning part which can be positioned on the X-direction positioning reference of the outer side edge of the outer decoration piece, a second positioning part which can be positioned on the Y-direction positioning reference of the outer side edge of the outer decoration piece, and a positioning part used for positioning the U-shaped bulge; b. The pad feet are fixedly connected with the corresponding connecting plates at the inner sides of the outer decoration pieces through spot welding; c. positioning parts of the positioning members are placed between adjacent cushion feet, so that the first positioning of the positioning members is positioned at a positioning reference in the X direction, the second positioning of the positioning members is positioned at a positioning reference in the Y direction, the positioning members at the moment are accurately positioned at the outer side edges of the outer decoration pieces, then the connecting plates with the zigzag protrusions are abutted against the corresponding cushion feet, the zigzag protrusions at the moment are positioned at the positioning parts of the positioning members; d. The connecting plates with the zigzag protrusions are fixed on the corresponding pad feet.
2. An automotive part according to claim 1, characterized in that in step d, the connection plates are fixed to the corresponding pads by spot welding.
3. An automobile part according to claim 1, wherein the foot pad is provided with a connecting screw hole, the connecting plate is provided with a connecting through hole, a fixing screw screwed with the connecting screw hole is arranged in the connecting through hole, and the diameter of the connecting through hole is 1.2-1.5 times of that of the fixing screw.
4. An automotive part according to claim 3, characterized in that a fixing washer is provided on the fixing screw, the thickness of the fixing washer being 0.8-1.0 times the thickness of the connection plate.
5. An automotive part according to claim 1, characterized in that there is a space between the X-direction positioning reference and the Y-direction positioning reference.
6. An automobile part according to claim 1, wherein a bottom hole of a threaded hole in threaded connection with the connecting screw is provided in the middle of the cross plate of the rectangular protrusion, and a positioning column is provided in the positioning portion so as to be fitted in the bottom hole.
7. An automotive part according to claim 1, characterized in that the positioning notch or the positioning step is an inherent structure of the outer side edge of the outer trim part, or is an auxiliary structure provided for the first positioning and the second positioning.

Description

Automobile part Technical Field The invention relates to the technical field of automobile part manufacturing, in particular to an automobile part. Background Existing automotive parts, in particular sheet-like exterior trim parts, are usually sheet metal shaped metal parts, which form a stationary automotive part by connection to an inner base part. In order to avoid damaging the appearance, and meanwhile, the outer decoration and the base member are usually in detachable plug-in type clamping connection or screw connection for convenient disassembly and assembly. Specifically, a clamping joint or a boss 1 (commonly called doghouse) with a threaded hole is arranged on the inner side surface of the outer decoration piece, a buckle or a connecting through hole is arranged at the corresponding position of the base member 2, when the outer decoration piece 3 is required to be connected with the base member, the clamping joint is pressed at the position where the clamping joint is arranged on the outer decoration piece, so that the clamping joint is clamped with the buckle, or a screw is used on the inner side of the base member to form a screw joint with the threaded hole of the boss of the outer decoration piece through the connecting through hole. However, the existing automobile parts with the connecting structure still have the technical defects that firstly, when the outer decorating part is a metal part formed by sheet metal, the U-shaped bulge cannot be integrally formed with the outer decorating part through a sheet metal process, and is usually fixed on the inner side of the outer decorating part through a spot welding process. That is, the boss of the figure-like shape is provided inside the outer garnish by a secondary processing method, so that the positional accuracy of the screw hole on the boss of the figure-like shape is lowered, and particularly when the size of the outer garnish is large, it is difficult to secure the positional accuracy of the screw hole on the boss of the figure-like shape connected inside the outer garnish by welding, thereby affecting the subsequent assembly accuracy. Disclosure of Invention The invention aims to provide an automobile part, which can effectively improve the position accuracy of a threaded hole on a boss in a shape like a Chinese character 'ji' on the inner side of an outer decoration piece and is convenient for the assembly connection of the outer decoration piece and a base member. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides an auto parts, includes inboard base member, the outer decoration of setting in the base member outside, the outer decoration inboard is equipped with several font arch, several font arch include middle diaphragm, an organic whole connect at the riser at diaphragm both ends, by the connecting plate of riser tip outside lateral extension to form the installation space between the bellied left and right sides riser of several font, be equipped with the connecting screw with diaphragm spiro union on the base member, thereby make outer decoration and base member form detachable connection, be equipped with the pad foot in outer decoration inboard, several font bellied connecting plate is connected with outer decoration through the pad foot, several font arch is connected with outer decoration inboard through following method: a. setting positioning references in the X direction and the Y direction on the outer side edge of the outer decoration piece close to the corresponding pad foot position, and manufacturing a positioning member, wherein the positioning member comprises a first positioning part capable of being positioned on the positioning reference in the X direction of the outer side edge of the outer decoration piece, a second positioning part capable of being positioned on the positioning reference in the Y direction of the outer side edge of the outer decoration piece, and a positioning part used for positioning the U-shaped bulge; b. The pad feet are fixedly connected with the corresponding connecting plates at the inner sides of the outer decoration pieces through spot welding; c. positioning parts of the positioning members are placed between adjacent cushion feet, so that the first positioning of the positioning members is positioned at a positioning reference in the X direction, the second positioning of the positioning members is positioned at a positioning reference in the Y direction, the positioning members at the moment are accurately positioned at the outer side edges of the outer decoration pieces, then the connecting plates of the rectangular protrusions are abutted against the corresponding cushion feet, and the rectangular protrusions at the moment are positioned at the positioning parts of the positioning members; d. The connecting plates with the zigzag protrusions are fixed on the corresponding pad feet. The automobile part of t