CN-116834674-B - Vehicle door B pillar decorative plate, vehicle door B pillar assembly adopting same and assembly method

CN116834674BCN 116834674 BCN116834674 BCN 116834674BCN-116834674-B

Abstract

The invention relates to the field of vehicle bodies, in particular to a vehicle door B-pillar decorative plate, a vehicle door B-pillar assembly adopting the B-pillar decorative plate and an assembly method; the automobile door B column decorative plate disclosed by the invention can be conveniently positioned and adjusted on automobile body sheet metal by matching the decorative plate positioning mechanism and the decorative plate fixing mechanism, so that the assembly gap between the automobile door B column decorative plate and the glass guide groove can be better ensured.

Inventors

WU CHUNXI
SONG HONGYAN
LV ZHICHENG
HUO GUIHUA

Assignees

奇瑞汽车股份有限公司

Dates

Publication Date: 20260505
Application Date: 20230628

Claims (4)

1. The automobile body B column assembly is characterized by comprising a door sheet metal, wherein a glass guide groove and a door B column decorative plate are arranged on the door sheet metal; The vehicle door B pillar decorative plate comprises a decorative plate body, wherein a decorative plate positioning mechanism and a decorative plate fixing mechanism are arranged on the decorative plate body; The plaque positioning mechanism comprises a plaque first positioning part and a plaque second positioning part; the first decorative plate positioning part comprises a decorative plate positioning pin arranged on the decorative plate body; The decorative plate second positioning part comprises a positioning plate arranged on the decorative plate body; the decorative plate fixing mechanism comprises a decorative plate locking fixing part, wherein the decorative plate locking fixing part comprises a fixed mounting hole arranged on a decorative plate body; the vehicle door sheet metal is provided with a vehicle body positioning mechanism and a vehicle body fixing mechanism; The vehicle body positioning mechanism comprises a vehicle body first positioning part and a vehicle body second positioning part which are arranged on the vehicle door sheet metal; the first positioning part of the automobile body comprises an automobile body positioning hole which is arranged on the automobile door sheet metal, wherein the automobile body positioning hole corresponds to a positioning pin of a corresponding decorative plate, and the automobile body positioning hole is a waist-shaped hole which extends along the height direction of the automobile body; the second positioning part of the vehicle body comprises a positioning groove arranged on the metal plate of the vehicle door, and the positioning plate is inserted into the positioning groove; The vehicle body fixing mechanism comprises a fixing hole arranged on the metal plate of the vehicle door, wherein the fixing hole corresponds to the fixing mounting hole; The decorative plate body is provided with a decorative plate limiting strip which is arranged in a protruding way; The decorative plate limiting strip comprises a first clamping plate and a second clamping plate, wherein the first clamping plate is connected with the decorative plate body through the second clamping plate; the vehicle door sheet metal is provided with a limiting protruding plate which is matched with a limiting strip of the decorative plate; the automobile door sheet metal is connected with the glass guide groove through a flanging mechanism, the flanging mechanism comprises a flanging block arranged on the automobile door sheet metal, the flanging block is provided with an inverted buckle groove, the edge of the automobile door sheet metal is provided with a spigot flanging, the glass guide groove is clamped in the inverted buckle groove of the flanging block, and meanwhile, the end part of the glass guide groove is propped against the spigot flanging; Before the installation of the B column decorative plate of the vehicle door, the glass guide groove is firstly installed on the metal plate of the vehicle door; Firstly, installing and clamping a glass guide groove on a flanging block to serve as a first reference for controlling the Z direction of the glass guide groove, then installing the glass guide groove on an inverted buckle groove of the flanging block until the glass guide groove is pressed and attached to serve as a second reference for controlling the Y direction of the glass guide groove, and finally installing the glass guide groove on the flanging of a sheet metal X direction seam allowance of a vehicle door until the glass guide groove is pressed and attached to serve as a third reference for controlling the X direction of the glass guide groove; After the glass guide groove is installed; install door B post decorative board to the door panel beating on, utilize the association location structure of door B post decorative board and glass guide slot simultaneously, accomplish final assembly, include: Mounting a positioning pin of a vehicle door B column decorative plate to a corresponding vehicle body positioning hole, and controlling the X direction of the lower part of the vehicle door B column decorative plate; Then, while installing the locating pin of the decorative plate of the vehicle door B column to the corresponding vehicle body locating hole, installing the locating plate into the locating groove, controlling the upper part X direction of the decorative plate of the vehicle door B column; The positioning plate is attached to the positioning groove in the Y direction, and the glass guide groove and the support rib of the decorative plate of the vehicle door B column jointly control the stability of the decorative plate of the vehicle door B column in the Y direction of the glass guide groove; in the process of installing the positioning pin and the positioning structure of the vehicle door B column decorative plate, the decorative plate limiting strip is installed and attached with the limiting convex plate, and the Y direction is controlled together with the installation surface; And the door B pillar decorative plate is pushed to the Z direction by utilizing the door B pillar decorative plate, the glass guide groove positioning structure and the door B pillar decorative plate positioning groove until the gap/surface difference between the glass guide groove and the door B pillar decorative plate matching seam is met, and the fastening screw for connecting the door B pillar decorative plate fixing mounting hole and the door sheet metal fixing hole is tightened, so that the assembly is completed after the tightening.
2. The B-pillar assembly of claim 1, wherein the first positioning portion and the locking and fixing portion are disposed on the same side of the body, and the spacing bar, the first positioning portion and the locking and fixing portion are disposed on both sides of the body.
3. The body B-pillar assembly of claim 1, wherein the side of the limiting boss is provided with a snap-in recess.
4. A method of assembling a B-pillar assembly of a vehicle body according to any one of claims 1 to 3, comprising the steps of: step 1, determining a door sheet metal, a glass guide groove and a B-pillar decorative plate to be assembled; Step 2, after the step 1 is completed, assembling the door sheet metal and the glass guide groove; step 3, after the step2 is completed, mounting the B-pillar decorative plate on the door sheet metal; when the B-pillar decorative plate is assembled on a car door metal plate: mounting a decorative plate positioning pin on a decorative plate body into a vehicle body positioning hole on a corresponding vehicle door plate; inserting a positioning plate on the decorative plate body into a positioning groove on the door sheet metal; then adjusting the gap between the glass guide groove and the B column decorative plate until the gap between the glass guide groove and the B column decorative plate meets the design requirement; after the relative position of the glass guide groove and the B column decorative plate is adjusted, the glass guide groove is connected with a fixed hole on the door sheet metal through a fixed mounting hole on the decorative plate body by a fastener; And 4, after the step 3 is finished, the operation of relatively assembling the door sheet metal, the glass guide groove and the B-pillar decorative plate in the B-pillar assembly of the vehicle body is finished, if the assembly is required to be repeated, and the step 2-3 is repeated.

Description

Vehicle door B pillar decorative plate, vehicle door B pillar assembly adopting same and assembly method Technical Field The invention relates to the field of vehicle bodies, in particular to a vehicle door B-pillar decorative plate, a vehicle door B-pillar assembly adopting the B-pillar decorative plate and an assembly method. Background The B-pillar decorative plate of the automobile door is used as one of important decorative parts of the automobile appearance, and more manufacturers adopt a mode that the B-pillar decorative plate replaces a door frame film to improve the overall grade and aesthetic feeling of the automobile appearance. The matching area of the B-pillar trim panel and the peripheral parts of the automobile door is used as an A-level sensitive area which can be perceived by customers, the matching quality requirement of the customers on the area is also higher and higher, and particularly, the matching quality of the B-pillar trim panel and the glass guide groove is higher and higher. The quality of the matching quality of the decorative plate of the vehicle door B column and the glass guide groove directly influences the visual feeling and satisfaction of customers. The quality of the matching quality of the automobile door B column decorative plate and the glass guide groove is judged, and the main judging basis is that the matching clearance and the matching surface are poor, and the customer requirements can be met only when the automobile door B column decorative plate is matched with the glass guide groove to completely meet the requirements of the clearance and the surface difference defined by products after the automobile door B column decorative plate is assembled. In order to control the matching relationship between the decorative plate of the vehicle door B column and the glass guide groove, the rationality of part installation and positioning is a main control means, in particular to a matching and associated installation structure between the upper part of the decorative plate of the vehicle door B column and the glass guide groove. The existing structure I is that the automobile door B column decorative plate and the glass guide groove are assembled by adopting independent positioning and have no related structure. In the existing structure II, the upper part of the decorative plate of the vehicle door B column and the glass guide groove are connected together by utilizing bolts to penetrate through metal plates, so that the matching surface of the decorative plate of the vehicle door B column and the glass guide groove is controlled to be poor, but gaps cannot be effectively controlled, and visual feeling and satisfaction of customers are still affected. In order to ameliorate at least one of the above problems, there is a need for an optimized design of existing vehicle body structures. Disclosure of Invention The invention aims to provide a B-pillar trim panel which can control the assembly clearance with a glass guide groove during subsequent assembly. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a vehicle door B post decorative plate comprises a decorative plate body, wherein a decorative plate positioning mechanism and a decorative plate fixing mechanism are arranged on the decorative plate body; The plaque positioning mechanism comprises a plaque first positioning part and a plaque second positioning part; the first decorative plate positioning part comprises a decorative plate positioning pin arranged on the decorative plate body; The decorative plate second positioning part comprises a positioning plate arranged on the decorative plate body; The decorative plate fixing mechanism comprises a decorative plate locking fixing part, wherein the decorative plate locking fixing part comprises a fixing mounting hole arranged on a decorative plate body. The decorative plate body is provided with a decorative plate limiting strip, and the decorative plate limiting strip is arranged on the decorative plate body in a protruding mode. The decorative plate limiting strip comprises a first clamping plate and a second clamping plate, the first clamping plate is connected with the decorative plate body through the second clamping plate, the first clamping plate and the decorative plate body are distributed at intervals, and the horizontal section of the decorative plate limiting strip is L-shaped. The decorative plate limiting strips, the decorative plate first positioning portions and the decorative plate locking fixing portions on the decorative plate body are distributed on two sides of the decorative plate body. A car body B column assembly comprises a car door sheet metal, wherein a glass guide groove and a car door B column decorative plate are arranged on the car door sheet metal. The vehicle door sheet metal is connected with the glass guide groove through the flanging mechanism, the flanging mechanism comprises a flan