A vehicle door B-pillar trim panel, a vehicle door B-pillar assembly and a method of assembly using the same

Abstract

This invention relates to the field of vehicle body, specifically to a B-pillar trim panel for a vehicle door, a B-pillar assembly using the trim panel, and an assembly method thereof. The trim panel includes a trim panel body, on which a trim panel positioning mechanism and a trim panel fixing mechanism are provided. The trim panel positioning mechanism includes a first trim panel positioning part and a second trim panel positioning part. The trim panel fixing mechanism includes a trim panel locking and fixing part. The B-pillar trim panel disclosed in this invention, through the combined use of the trim panel positioning mechanism and the trim panel fixing mechanism, facilitates the subsequent positioning and adjustment of the B-pillar trim panel on the vehicle body sheet metal, thereby better ensuring the assembly gap between the B-pillar trim panel and the glass guide channel.

Description

Technical Field

[0001] This invention relates to the field of vehicle body, specifically to a door B-pillar trim panel, a door B-pillar assembly using the trim panel, and an assembly method thereof. Background Technology

[0002] As an important decorative component of a car's exterior, the B-pillar trim panel is increasingly being used by manufacturers to replace door frame film, thereby enhancing the overall quality and aesthetics of the car's appearance.

[0003] As a sensitive area that customers can perceive, the area where the B-pillar trim panel of a car door meets the surrounding components is subject to increasingly higher quality requirements from customers, especially the quality of the fit between the B-pillar trim panel and the glass guide channel.

[0004] The quality of the fit between the B-pillar trim panel and the glass guide channel directly affects the customer's visual experience and satisfaction.

[0005] The main criteria for judging the quality of the fit between the B-pillar trim panel and the glass guide channel of a car door are the fit clearance and the surface difference. Only when the fit between the B-pillar trim panel and the glass guide channel fully meets the product definition requirements for clearance and surface difference after the B-pillar trim panel is assembled can the customer's needs be met.

[0006] In order to control the fit between the B-pillar trim panel and the glass guide channel, the rationality of the component installation and positioning is the main control method, especially the fit and connection between the upper part of the B-pillar trim panel and the glass guide channel.

[0007] Existing Structure 1: The assembly of the door B-pillar trim panel and glass guide channel adopts independent positioning, with no interconnected structure.

[0008] Existing Structure 2: The upper part of the B-pillar trim panel of the car door and the glass guide channel are connected together by bolts through the sheet metal. This controls the difference in the mating surfaces between the B-pillar trim panel and the glass guide channel. However, the gap cannot be effectively controlled, which still affects the customer's visual experience and satisfaction.

[0009] Therefore, in order to improve at least one of the above problems, it is necessary to optimize the design of the existing vehicle body structure. Summary of the Invention

[0010] The purpose of this invention is to provide a B-pillar decorative panel that allows for control of the assembly gap with the glass guide groove during subsequent assembly.

[0011] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0012] A car door B-pillar decorative panel includes a decorative panel body, wherein the decorative panel body is provided with a decorative panel positioning mechanism and a decorative panel fixing mechanism;

[0013] The trim panel positioning mechanism includes a first trim panel positioning part and a second trim panel positioning part;

[0014] The first positioning part of the decorative panel includes a decorative panel positioning pin disposed on the body of the decorative panel.

[0015] The second positioning part of the decorative panel includes a positioning plate disposed on the body of the decorative panel;

[0016] The decorative panel fixing mechanism includes a decorative panel locking and fixing part; the decorative panel locking and fixing part includes a fixing and mounting hole provided on the decorative panel body.

[0017] The decorative panel body is provided with a decorative panel limiting strip; the decorative panel limiting strip is raised on the decorative panel body.

[0018] The decorative panel limiting strip includes a first clamping plate and a second clamping plate. The first clamping plate is connected to the decorative panel body through the second clamping plate. The first clamping plate and the decorative panel body are spaced apart. The horizontal cross-section of the decorative panel limiting strip is L-shaped.

[0019] The first positioning part and the locking and fixing part of the decorative panel are located on the same side of the decorative panel body; the decorative panel limiting strip on the decorative panel body is located on both sides of the decorative panel body, along with the first positioning part and the locking and fixing part.

[0020] A vehicle body B-pillar assembly includes a door sheet metal, on which a glass guide channel and a door B-pillar decorative panel are provided.

[0021] The door sheet metal is connected to the glass guide channel via a flanging mechanism; the flanging mechanism includes a flanging block provided on the door sheet metal, the flanging block having an undercut groove; a stop flanging is provided at the edge of the door sheet metal; the glass guide channel is engaged in the undercut groove of the flanging block, and the end of the glass guide channel abuts against the stop flanging.

[0022] The body sheet metal is equipped with a body positioning mechanism and a body fixing mechanism;

[0023] The vehicle positioning mechanism includes a first vehicle positioning part and a second vehicle positioning part disposed on the vehicle sheet metal;

[0024] The first positioning part of the vehicle body includes a body positioning hole provided on the body sheet metal; the body positioning hole corresponds to the positioning pin of the corresponding decorative panel; the body positioning hole is an oblong hole; the oblong hole extends along the height direction of the vehicle body;

[0025] The second positioning part of the vehicle body includes a positioning groove provided on the body sheet metal, and the positioning plate is inserted into the positioning groove; the positioning plate is in contact with the inner wall of the positioning groove.

[0026] The vehicle body fixing mechanism includes fixing holes provided on the vehicle body sheet metal; the fixing holes correspond to the fixing mounting holes.

[0027] The body sheet metal is provided with a limiting protrusion; the limiting protrusion is used in conjunction with the decorative panel limiting strip.

[0028] The side of the limiting protrusion plate is provided with a snap-fit ​​groove.

[0029] A method for assembling the B-pillar assembly of the vehicle body, characterized in that the assembly method includes the following steps:

[0030] Step 1: Identify the door sheet metal, glass guide channels, and B-pillar trim panels to be installed;

[0031] Step 2: After completing Step 1, assemble the door sheet metal and glass guide channel;

[0032] Step 3: After completing Step 2, install the B-pillar trim panel onto the door sheet metal;

[0033] When assembling the B-pillar trim panel into the door sheet metal:

[0034] Install the decorative panel positioning pin on the decorative panel body into the corresponding body positioning hole on the door panel;

[0035] Insert the positioning plate on the decorative panel body into the positioning groove on the body sheet metal;

[0036] Then adjust the gap between the glass guide channel and the B-pillar trim panel until the gap meets the design requirements.

[0037] After the relative positions of the glass guide channel and the B-pillar trim panel are adjusted, fasteners are used to connect the trim panel to the body sheet metal by passing through the fixing holes on the trim panel body.

[0038] Step 4: After completing Step 3, the assembly of the door sheet metal, glass guide channel, and B-pillar trim panel in the B-pillar assembly is complete. If reassembly is required, repeat Steps 2-3 above.

[0039] The advantages of this invention are:

[0040] This invention discloses a B-pillar trim panel for a car door, a B-pillar assembly using the trim panel, and an assembly method thereof.

[0041] The B-pillar trim panel disclosed in this invention, through the combined use of a trim panel positioning mechanism and a trim panel fixing mechanism, can facilitate the positioning and adjustment of the B-pillar trim panel on the body sheet metal for subsequent assembly, thereby better ensuring the assembly gap between the B-pillar trim panel and the glass guide channel.

[0042] Meanwhile, the B-pillar assembly of the car door disclosed in this invention facilitates the positioning of the glass guide channel on the car door sheet metal through the setting of the flange mechanism, and at the same time, the setting of the associated structure can ensure the assembly gap between the B-pillar trim panel and the glass guide channel, which is more in line with actual design requirements. Attached Figure Description

[0043] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0044] Figure 1 This is a schematic diagram of the assembly of the door sheet metal, the door B-pillar decorative panel, and the glass guide channel in this invention;

[0045] Figure 2 1. This is a schematic diagram of the installation of the glass guide channel and the car door sheet metal in this invention;

[0046] Figure 3 ,for Figure 2 A magnified view of the local structure;

[0047] Figure 4 ,for Figure 2 Sectional view along AA;

[0048] Figure 5 This is a schematic diagram of the installation of the B-pillar decorative panel and the door sheet metal in this invention;

[0049] Figure 6 This is a schematic diagram of a partial fit between the B-pillar trim panel of the car door and the glass guide channel in this invention;

[0050] The markings in the above figures are all:

[0051] 101. Glass guide channel; 102. B-pillar trim panel; 103. Door sheet metal; 104. Flanged block; 105. Back groove; 106. Stop flange; 107. Positioning pin; 108. Positioning hole; 109. Fixing mounting hole; 110. Fixing hole; 111. Trim panel limiting strip; 112. Limiting protrusion plate; 113. Positioning plate; 114. Positioning groove; 115. Door B-pillar trim panel support rib; 116. Glass guide channel and door B-pillar trim panel mating joint. Detailed Implementation

[0052] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0053] It should also be noted that the X, Y, and Z directions disclosed in this invention are based on the vehicle's placement on a horizontal plane. The X, Y, and Z directions of the automobile are existing technologies and will not be described in detail here.

[0054] A car door B-pillar trim panel includes a trim panel body 1021, on which a trim panel positioning mechanism and a trim panel fixing mechanism are provided. The car door B-pillar trim panel 102 disclosed in this invention, through the cooperation of the trim panel positioning mechanism and the trim panel fixing mechanism, can facilitate the positioning and adjustment of the car door B-pillar trim panel 102 on the car body sheet metal, thereby better ensuring the assembly gap between the car door B-pillar trim panel 102 and the glass guide groove 101.

[0055] The B-pillar trim panel 102 disclosed in this invention is mainly an optimized design of the traditional B-pillar trim panel 102. The B-pillar trim panel 102 disclosed in this invention mainly achieves longitudinal position adjustment of the B-pillar trim panel 102 in addition to positioning by setting a trim panel positioning mechanism, thereby better ensuring the assembly gap between the B-pillar trim panel 102 and the glass guide groove 101.

[0056] Specifically, the B-pillar trim panel 102 of the car door disclosed in this invention mainly includes a trim panel positioning mechanism and a trim panel fixing mechanism. In this invention, the trim panel positioning mechanism is mainly used for positioning the B-pillar trim panel 102 in the X and Y directions. The trim panel fixing mechanism is mainly used for locking the B-pillar trim panel 102 after the position is adjusted, so as to ensure the stability of the installation position of the B-pillar trim panel 102 on the car body sheet metal.

[0057] Furthermore, the trim panel positioning mechanism described in this invention includes a first trim panel positioning part and a second trim panel positioning part. The first trim panel positioning part is mainly used for the lateral positioning of the trim panel body 1021, that is, to limit the position of the trim panel body 1021 in the X direction, so as to facilitate the initial positioning and installation of the B-pillar trim panel 102. In this invention, the second trim panel positioning part is mainly used in conjunction with the first trim panel positioning part, and the second trim panel positioning part is mainly used to limit the position of the trim panel body 1021 in the Y direction.

[0058] In this invention, the first positioning part of the trim panel includes a trim panel positioning pin 107 disposed on the trim panel body 1021. In actual use, the trim panel positioning pin 107 cooperates with the body positioning hole 108 on the body sheet metal to achieve the initial positioning of the trim panel body 1021. The second positioning part of the trim panel includes a positioning plate 113 disposed on the trim panel body 1021. In actual use, the positioning plate 113 is used to cooperate with the positioning groove 114 on the body sheet metal, and the positioning plate 113 is required to fit against the inner wall of the positioning groove 114. This arrangement can achieve the mutual positioning between the trim panel body 1021 and the body sheet metal for a second time. That is, through the above-mentioned first positioning part and second positioning part of the trim panel, the limiting operation of the trim panel body 1021 in the X and Y directions can be realized.

[0059] Meanwhile, the trim panel fixing mechanism in this invention includes a trim panel locking and fixing part; the trim panel locking and fixing part includes a fixing mounting hole 109 provided on the trim panel body 1021; in actual use, the trim panel is fixedly connected to the body sheet metal by passing a bolt through the fixing mounting hole 109 and connecting it to the fixing hole 110 on the body sheet metal.

[0060] Additionally, it should be noted that the outer diameter of the decorative panel positioning pin 107 of the present invention is the same as the inner diameter of the body positioning hole 108; the body positioning plate 113 is snapped and attached to the inner wall of the positioning groove 114.

[0061] Furthermore, the decorative panel body 1021 described in this invention is provided with a decorative panel limiting strip 111. One function of the decorative panel limiting strip 111 is to act as a reinforcing member, mainly to increase the overall structural strength and rigidity of the decorative panel body 1021. Another function is to provide good support and limiting, facilitating subsequent cooperation with the limiting protrusion plate 112 on the body sheet metal to limit the position of the decorative panel body 1021. In actual design, the decorative panel limiting strip 111 is protruding on the decorative panel body 1021. This arrangement allows the decorative panel limiting strip 111 to act as an internal support block. After the positioning plate 113 is inserted into the positioning groove 114, the internal support block lifts the decorative panel body 1021, ensuring the fit between the positioning plate 113 and the positioning groove 114, thereby better ensuring the stability of the decorative panel position.

[0062] Furthermore, in this invention, the decorative panel limiting strip 111 includes a first locking plate 1111 and a second locking plate 1112. The first locking plate 1111 is connected to the decorative panel body 1021 through the second locking plate 1112. The first locking plate 1111 and the decorative panel body 1021 are spaced apart. The horizontal cross-section of the decorative panel limiting strip 111 is L-shaped. Through the above design, there is a certain gap between the first locking plate 1111 and the decorative panel body 1021, forming a gap. This gap is equivalent to a hook groove, thus making the decorative panel limiting strip 111 disclosed in this invention equivalent to a lateral hook structure. This facilitates subsequent use, whereby the decorative panel limiting strip 111 is hooked onto the limiting protrusion 112 of the body sheet metal through the hook groove, thereby better realizing the limiting operation of the decorative panel body 1021 in both the X and Y directions.

[0063] Furthermore, in this invention, the first positioning part and the locking and fixing part of the trim panel are arranged on the same side of the trim panel body 1021; the trim panel limiting strip 111 on the trim panel body 1021, the first positioning part and the locking and fixing part of the trim panel are arranged on both sides of the trim panel body 1021; based on the arrangement of the above components, this invention can realize that both sides of the trim panel body 1021 are connected to the body sheet metal parts, in other words, it avoids the problem that the trim panel is prone to warping when subjected to force on one side during assembly, and can also act as a slide to facilitate the subsequent pushing of the trim panel body 1021 and change the gap between the trim panel body 1021 and the glass guide groove 101.

[0064] A vehicle body B-pillar assembly includes a door sheet metal 103, on which a glass guide channel 101 and a door B-pillar decorative panel 102 are provided; the door B-pillar assembly disclosed in this invention; by setting up a flange mechanism, the positioning of the glass guide channel 101 on the door sheet metal 103 is facilitated, and by setting up an associated structure, the assembly gap between the door B-pillar decorative panel 102 and the glass guide channel 101 can be guaranteed; thus, it better meets actual design requirements.

[0065] In addition, the B-pillar assembly of the vehicle body disclosed in this invention, through the design of the B-pillar decorative panel 102, can better stabilize the relative assembly position of the body sheet metal and the B-pillar decorative panel 102, and can also ensure the assembly gap between the B-pillar decorative panel 102 and the glass guide channel 101.

[0066] Furthermore, in this invention, the door sheet metal 103 is connected to the glass guide channel 101 via a flanging mechanism. The flanging mechanism acts as a bridge, primarily facilitating the connection between the glass guide channel 101 and the body sheet metal. Specifically, the flanging mechanism includes a flanging block 104 on the door sheet metal 103, which acts as a protrusion. During subsequent connection, the glass guide channel 101 is fitted onto the end of the flanging block 104. This arrangement allows the flanging block 104 to longitudinally limit the glass guide channel 101, ensuring the stability of its Z-direction position. Simultaneously, the flanging block 104 is provided with a snap-fit ​​groove 105. A snap-fit ​​groove 105 is provided both above and below the flanging block 104. During subsequent connection, the glass guide channel 101... The glass guide channel 101 is snapped into two undercut grooves 105, which are recessed structures. The undercut grooves 105 can apply a binding force along the Y direction to the glass guide channel 101, thereby effectively limiting the position of the glass guide channel 101 in the Y direction. At the same time, a stop flange 106 is provided at the edge of the door sheet metal 103 in this invention. The glass guide channel 101 is snapped into the undercut grooves 105 of the flange block 104, and the end of the glass guide channel 101 abuts against the stop flange 106. The stop flange 106 plays a lateral limiting role, preventing the glass guide channel 101 from moving on the body sheet metal, thereby realizing the movement of the glass guide channel 101 in the X direction. In summary, the present invention can ensure the stability of the position of the glass guide channel 101 on the body sheet metal through the above-mentioned flange mechanism.

[0067] Furthermore, the body sheet metal described in this invention is provided with a body positioning mechanism and a body fixing mechanism; the body positioning mechanism on the body sheet metal is mainly used to limit the position of the B-pillar decorative panel 102; by cooperating with the trim panel positioning mechanism on the B-pillar decorative panel 102, it ensures the stability of the B-pillar decorative panel 102 in the X and Y directions of the body sheet metal; at the same time, the body fixing mechanism is mainly used to cooperate with the trim panel fixing mechanism on the B-pillar decorative panel 102 to lock and fix the position of the B-pillar decorative panel 102 on the body sheet metal, ensuring the stability of the position of the B-pillar decorative panel 102 after assembly.

[0068] Specifically, the vehicle positioning mechanism disclosed in this invention includes a first positioning part and a second positioning part on the body sheet metal; the first positioning part cooperates with the first positioning part of the trim panel to limit the position of the B-pillar trim panel 102 in the X direction; while the second positioning part mainly cooperates with the second positioning part of the trim panel to limit the position of the B-pillar trim panel 102 in the X and Y directions.

[0069] In this invention, the first positioning part of the vehicle body includes a vehicle body positioning hole 108 disposed on the vehicle body sheet metal; the vehicle body positioning hole 108 corresponds to a corresponding decorative panel positioning pin 107; in use, the decorative panel positioning pin 107 is inserted into the vehicle body positioning hole 108, and the width of the vehicle body positioning hole 108 is equal to the outer diameter of the positioning pin 107, thereby realizing the X-direction limiting of the B-pillar decorative panel 102. At the same time, in this invention, in order to adjust the gap between the B-pillar decorative panel 102 and the glass guide groove 101, the vehicle body positioning hole 108 is required to be an oblong hole; the oblong hole extends along the height direction of the vehicle body; such a setting can avoid the longitudinal pushing of the B-pillar decorative panel 102 due to the mutual restriction between the positioning pin 107 and the positioning hole 108.

[0070] Meanwhile, the second positioning part of the vehicle body in this invention includes a positioning groove 114 provided on the body sheet metal, and the positioning plate 113 is inserted into the positioning groove 114; the positioning plate 113 is in contact with the inner wall of the positioning groove 114; the positioning groove 114 disclosed above is mainly for cooperating with the positioning plate 113 on the B-pillar decorative panel 102. In actual assembly, the positioning plate 113 and the positioning groove 114 are inserted into each other, and the positioning plate 113 is in contact with the inner wall of the positioning groove 114, thereby realizing the mutual positioning of the positioning plate 113 and the positioning groove 114; when the size of the positioning plate 113 and the positioning groove 114 is limited, the X and Y bidirectional positions of the B-pillar decorative panel 102 can be limited.

[0071] Meanwhile, the vehicle body fixing mechanism described in this invention includes fixing holes 110 provided on the vehicle body sheet metal; the fixing holes 110 correspond to the fixing mounting holes 109; in this invention, the vehicle body fixing mechanism is used in conjunction with the trim panel locking fixing part, and subsequently, the B-pillar trim panel 102 is fixedly installed on the vehicle body sheet metal by passing bolts through the fixing holes 110 and the fixing mounting holes 109.

[0072] Furthermore, the body sheet metal in this invention is provided with a limiting protrusion 112; the limiting protrusion 112 is used in conjunction with the decorative panel limiting strip 111; the limiting protrusion 112 of this invention is mainly used in conjunction with the decorative panel limiting strip 111 on the B-pillar decorative panel 102. In actual use, the limiting protrusion 112 and the decorative panel limiting strip 111 are used in close contact with each other. The limiting protrusion 112 plays a supporting and limiting role, which can support the B-pillar decorative panel 102, ensure the degree of contact between the positioning plate 113 and the positioning groove 114, and prevent the B-pillar decorative panel 102 from moving in the Y direction.

[0073] As a further optimization, a snap-fit ​​groove is provided on the side of the limiting protrusion 112 described in this invention. The snap-fit ​​groove forms a groove structure on the side of the limiting protrusion 112. During subsequent assembly and use, the first snap plate 1111 in the B-pillar decorative panel 102 is inserted into the snap-fit ​​groove, thereby limiting the X-direction position of the B-pillar decorative panel 102. By controlling the thickness of the first snap plate 1111 and the size of the snap-fit ​​groove, the first snap plate 1111 can be fitted with the snap-fit ​​groove, thereby limiting the Y-direction position of the B-pillar decorative panel 102.

[0074] A method for assembling the B-pillar assembly of the vehicle body, characterized in that the assembly method includes the following steps:

[0075] Step 1: Identify the door sheet metal 103, glass guide channel 101, and B-pillar trim panel 102 to be installed;

[0076] Step 2: After completing Step 1, assemble the door sheet metal 103 with the glass guide channel 101;

[0077] Step 3: After completing Step 2, install the B-pillar trim panel 102 onto the door sheet metal 103;

[0078] When the B-pillar trim panel 102 is assembled onto the door sheet metal 103:

[0079] Install the decorative panel positioning pin 107 on the decorative panel body 1021 into the body positioning hole 108 on the corresponding door panel;

[0080] The positioning plate 113 on the decorative panel body 1021 is inserted into the positioning groove 114 on the body sheet metal;

[0081] Then adjust the gap between the glass guide channel 101 and the B-pillar decorative panel 102 until the gap meets the design requirements.

[0082] After the relative positions of the glass guide channel 101 and the B-pillar trim panel 102 are adjusted, the fasteners are connected to the fixing holes 110 on the body sheet metal by passing through the fixing holes 109 on the trim panel body 1021.

[0083] Step 4: After step 3 is completed, the assembly of the door sheet metal 103, glass guide channel 101 and B-pillar trim panel 102 in the B-pillar assembly is completed. If reassembly is required, repeat steps 2-3 above.

[0084] Through the design of the above assembly method, the glass guide channel 101 can be stably and accurately assembled on the body sheet metal, and the B-pillar trim panel 102 can also be stably and accurately assembled on the body sheet metal; and the assembly gap between the B-pillar trim panel 102 and the glass guide channel 101 can also be guaranteed.

[0085] specific:

[0086] This invention discloses a B-pillar decorative panel 102 for a car door, a car door B-pillar assembly using the B-pillar decorative panel 102, and an assembly method thereof.

[0087] Essentially, this discloses an associated positioning structure between the B-pillar trim panel 102 of a car door and the glass guide channel 101. This associated positioning structure can achieve the interconnection of the B-pillar trim panel 102 and the glass guide channel 101 without affecting the installation of the parts, thereby ensuring the fit gap and surface difference between the B-pillar trim panel 102 and the glass guide channel 101 after assembly, improving assembly consistency, visual appeal and customer satisfaction.

[0088] The specific structure is described below:

[0089] The B-pillar assembly of the vehicle body disclosed in this invention includes a door sheet metal 103, on which a glass guide groove 101 and a door B-pillar decorative panel 102 are provided.

[0090] In this invention, the door sheet metal 103 and the glass guide channel 101 are connected by a flanging mechanism, which is equivalent to the installation and positioning structure of the glass guide channel 101 and the door sheet metal.

[0091] Based on the content disclosed in this invention, it can be understood that the glass guide channel 101 of this invention adopts a clamping and snapping structure to achieve installation and positioning with the door sheet metal 103; that is: according to the 3-2-1 positioning principle of components, the glass guide channel 101 is installed with the door sheet metal 103, using the flange block 104 on the door sheet metal 103 as the first reference for fitting and snapping, controlling the Z direction of the glass guide channel 101; then using the undercut groove 105 on the flange block 104 as the second reference, pressing it to fit during the assembly process, controlling the Y direction of the glass guide channel 101; finally using the stop flange 106 on the door sheet metal 103 as the third reference, pressing it to fit during the assembly process, controlling the X direction of the glass guide channel 101.

[0092] Then, the B-pillar trim panel 102 of the car door is installed with the door sheet metal 103, and a positioning structure is associated with the glass guide channel 101.

[0093] The B-pillar decorative panel 102 and the door sheet metal 103 of the present invention mainly include a decorative panel positioning mechanism, a decorative panel fixing mechanism, a body positioning mechanism and a body fixing mechanism provided on the decorative panel body 1021.

[0094] In this invention, the trim panel positioning mechanism includes a first trim panel positioning part and a second trim panel positioning part; the first trim panel positioning part includes a trim panel positioning pin 107 disposed on the trim panel body 1021; the second trim panel positioning part includes a positioning plate 113 disposed on the trim panel body 1021; the trim panel fixing mechanism includes a trim panel locking fixing part; the trim panel locking fixing part includes a fixing mounting hole 109 disposed on the trim panel body 1021; the body positioning mechanism includes a first body positioning part and a second body positioning part disposed on the body sheet metal; the first body positioning part includes a body positioning hole 108 disposed on the body sheet metal; the body positioning hole 108 corresponds to the corresponding trim panel positioning pin 107; the body positioning hole 108 is an oblong hole; the oblong hole extends along the height direction of the body; the second body positioning part includes a positioning groove 11 disposed on the body sheet metal. 4. The positioning plate 113 is inserted into the positioning groove 114; the positioning plate 113 is in contact with the inner wall of the positioning groove 114; the body fixing mechanism includes fixing holes 110 set on the body sheet metal; the fixing holes 110 correspond to the fixing mounting holes 109; in this invention, at least one circular positioning pin 107 is provided, distributed in the lower part of the door B-pillar decorative panel 102, and the positioning pin 107 corresponds to the elongated positioning hole 108 of the door sheet metal 103; the upper part of the door B-pillar decorative panel 102, in the area that mates with the glass guide groove 101, is designed with an associated structure that mates with the glass guide groove 101 to control the mate quality with the glass guide groove 101; one side of the door B-pillar decorative panel 102 is designed with 3 screw mounting holes for fastening with the door sheet metal 103, and the other side is designed with 4 limiting ribs for locking and limiting with the door sheet metal 103, and the mounting holes and limiting ribs together control the Y-direction stability of the door B-pillar decorative panel 102.

[0095] According to the 3-2-1 positioning principle for components, the first reference for the B-pillar trim panel 102 of the car door is: 3 screw fastening surfaces, 4 limiting ribs, and the limiting connection structure between the upper part of the B-pillar trim panel 102 and the glass guide channel 101, which together control the Y direction; the second reference for the B-pillar trim panel 102 of the car door is: the lower positioning pin 107 and the upper limiting connection structure with the glass guide channel 101, which together control the X direction; the third reference for the B-pillar trim panel 102 of the car door is: the upper connection positioning structure with the glass guide channel 101, which is designed as a loose structure. That is, during the assembly process, the B-pillar trim panel 102 of the car door needs to be pushed upwards to ensure that the B-pillar trim panel 102 of the car door is in contact with the glass guide channel 101 before tightening the screws to control the Z direction.

[0096] Additionally, it should be noted that the correlation and positioning structure between the B-pillar trim panel 102 of the car door and the glass guide groove 101 is the focus of this invention.

[0097] The key design points of this associated positioning structure are as follows: 1) The associated structure is positioned in the X direction with the glass guide channel 101 to control the X-direction stability and consistency between the door B-pillar trim panel 102 and the glass guide channel 101; 2) The Y-direction is "0" fit with the glass guide channel 101 to control the surface difference between the door B-pillar trim panel 102 and the glass guide channel 101; 3) The Z-direction is open with the glass guide channel 101 without limitation. During assembly, employees need to push the door B-pillar trim panel 102 upwards and tighten the screws after the door B-pillar trim panel 102 fits with the glass guide channel 101 to control the fit clearance between the door B-pillar trim panel 102 and the glass guide channel 101.

[0098] As shown in the figure, the glass guide channel 101 and the door B-pillar decorative panel 102 are respectively installed on the door sheet metal 103. The mating seam 116 formed after the glass guide channel 101 and the door B-pillar decorative panel 102 are the key points to be controlled by this invention.

[0099] As shown in the figure, before installing the B-pillar trim panel 102 of the car door, the glass guide channel 101 is first installed onto the car door sheet metal 103. First, the glass guide channel 101 is installed and snapped onto the flange block 104 as the first reference to control the Z direction of the glass guide channel 101. Then, the glass guide channel 101 is installed onto the undercut groove 105 of the flange block 104 and pressed until it fits, which serves as the second reference to control the Y direction of the glass guide channel 101. Finally, the glass guide channel 101 is installed onto the X-direction stop flange 106 of the car door sheet metal 103 and pressed until it fits, which serves as the third reference to control the X direction of the glass guide channel 101.

[0100] As shown in the figure and illustration, the B-pillar trim panel 102 of the car door is installed onto the car door sheet metal 103. At the same time, the final assembly is completed by utilizing the associated positioning structure between the B-pillar trim panel 102 and the glass guide channel 101, thus meeting the product definition requirements.

[0101] First, install the B-pillar trim panel positioning pin 107 into the corresponding B-pillar trim panel positioning hole 108 to control the lower X direction of the B-pillar trim panel 102.

[0102] Then, while installing the B-pillar trim panel positioning pin 107 into the corresponding B-pillar trim panel positioning hole 108, the positioning plate 113 is installed into the positioning groove 114 to control the upper X direction of the B-pillar trim panel 102.

[0103] The positioning plate 113 and the positioning groove 114 are aligned at "0" in the Y direction, and together with the glass guide groove 101 and the door B-pillar decorative panel support rib 115, they control the Y-direction stability of the door B-pillar decorative panel 102 and the glass guide groove 101; there is no limit in the Z direction, the structure is open, and it is easy to operate and adjust.

[0104] In addition, since the B-pillar trim panel 102 of the car door is connected to the other side of the door sheet metal 103 by the limiting protrusion 112 and the trim panel limiting strip 111, during the installation of the B-pillar trim panel 102 positioning pin 107 and positioning structure, the trim panel limiting strip 111 and the limiting protrusion 112 should be installed and attached at the same time. After installation, they will play a limiting role and control the Y direction together with the installation surface.

[0105] Finally, after installation in the above order, during the assembly process, the employee uses the positioning structure 113 of the door B-pillar trim panel 102 and the positioning groove 114 of the glass guide channel 101 to push the door B-pillar trim panel 102 upward (Z direction) until the gap / surface difference of the mating joint 116 between the glass guide channel 101 and the door B-pillar trim panel 102 is satisfied. Then, the employee tightens the fastening screws connecting the door B-pillar trim panel fixing holes and the door sheet metal fixing holes. After tightening, the employee leaves the workstation to complete the assembly.

[0106] Obviously, the specific implementation of this invention is not limited to the above-described methods. Any non-substantial improvements made using the inventive concept and technical solution of this invention are within the protection scope of this invention.

Claims

1. A vehicle body B-pillar assembly, characterized in that, This includes the door sheet metal, which has a glass guide channel and a door B-pillar trim panel. The B-pillar trim panel of the vehicle door includes a trim panel body, and the trim panel body is provided with a trim panel positioning mechanism and a trim panel fixing mechanism. The trim panel positioning mechanism includes a first trim panel positioning part and a second trim panel positioning part; The first positioning part of the decorative panel includes a decorative panel positioning pin disposed on the body of the decorative panel. The second positioning part of the decorative panel includes a positioning plate disposed on the body of the decorative panel; The decorative panel fixing mechanism includes a decorative panel locking and fixing part; the decorative panel locking and fixing part includes a fixing and mounting hole provided on the decorative panel body; The door sheet metal is equipped with a body positioning mechanism and a body fixing mechanism; The vehicle body positioning mechanism includes a first vehicle body positioning part and a second vehicle body positioning part disposed on the door sheet metal; The first positioning part of the vehicle body includes a body positioning hole provided on the door sheet metal; the body positioning hole corresponds to the positioning pin of the corresponding decorative panel; the body positioning hole is a waist-shaped hole; the waist-shaped hole extends along the height direction of the vehicle body. The second positioning part of the vehicle body includes a positioning groove provided on the door sheet metal, and the positioning plate is inserted into the positioning groove; the positioning plate is in contact with the inner wall of the positioning groove. The vehicle body fixing mechanism includes fixing holes provided on the door sheet metal; the fixing holes correspond to fixing mounting holes. The decorative panel body is provided with a decorative panel limiting strip; the decorative panel limiting strip is provided in a raised manner on the decorative panel body; The decorative panel limiting strip includes a first retaining plate and a second retaining plate, wherein the first retaining plate is connected to the decorative panel body through the second retaining plate; the first retaining plate and the decorative panel body are spaced apart; the horizontal cross-section of the decorative panel limiting strip is L-shaped. The door sheet metal is provided with a limiting protrusion; the limiting protrusion is used in conjunction with the decorative panel limiting strip; The door sheet metal is connected to the glass guide channel via a flanging mechanism; the flanging mechanism includes a flanging block provided on the door sheet metal, the flanging block having a back groove; a stop flanging is provided at the edge of the door sheet metal; the glass guide channel is engaged in the back groove of the flanging block, and the end of the glass guide channel abuts against the stop flanging. Before installing the B-pillar trim panel on the car door, first install the glass guide channel onto the door sheet metal; First, attach the glass guide channel mounting clip to the flange block as the first reference to control the Z direction of the glass guide channel; then install the glass guide channel onto the undercut groove of the flange block and press it in place until it fits, as the second reference to control the Y direction of the glass guide channel; finally, install the glass guide channel onto the X direction stop flange of the door sheet metal and press it in place until it fits, as the third reference to control the X direction of the glass guide channel. After the glass guide channel is installed; The B-pillar trim panel is installed onto the door sheet metal, and the final assembly is completed using the positioning structure between the B-pillar trim panel and the glass guide channel. This includes: Install the B-pillar trim panel positioning pin of the car door into the corresponding body positioning hole to control the lower part of the B-pillar trim panel in the X direction; Then, while installing the B-pillar trim panel positioning pin into the corresponding body positioning hole, install the positioning plate into the positioning groove to control the upper X direction of the B-pillar trim panel. The positioning plate and positioning groove fit together in the Y direction. The glass guide groove and the support rib of the door B-pillar trim panel jointly control the Y-direction stability of the door B-pillar trim panel and the glass guide groove. The B-pillar trim panel of the car door is connected to the other side of the car door sheet metal by a limiting protrusion plate and a trim panel limiting strip; during the installation of the B-pillar trim panel positioning pin and positioning structure, the trim panel limiting strip and the limiting protrusion plate are installed and attached together, and together with the installation surface, they control the Y direction. Using the positioning structure of the door B-pillar trim panel and the glass guide channel, as well as the positioning groove of the door B-pillar trim panel, push the door B-pillar trim panel in the Z direction until the gap / surface difference between the glass guide channel and the door B-pillar trim panel is satisfied. Then tighten the fastening screws connecting the door B-pillar trim panel fixing holes and the door sheet metal fixing holes. After tightening, the assembly is complete.

2. The vehicle body B-pillar assembly according to claim 1, characterized in that, The first positioning part and the locking and fixing part of the decorative panel are located on the same side of the decorative panel body; the decorative panel limiting strip on the decorative panel body is located on both sides of the decorative panel body, along with the first positioning part and the locking and fixing part.

3. The vehicle body B-pillar assembly according to claim 1, characterized in that, The side of the limiting protrusion plate is provided with a snap-fit ​​groove.

4. An assembly method for the vehicle body B-pillar assembly according to any one of claims 1-3, characterized in that, The assembly method includes the following steps: Step 1: Identify the door sheet metal, glass guide channels, and B-pillar trim panels to be installed; Step 2: After completing Step 1, assemble the door sheet metal and glass guide channel; Step 3: After completing Step 2, install the B-pillar trim panel onto the door sheet metal; When assembling the B-pillar trim panel into the door sheet metal: Install the decorative panel positioning pin on the decorative panel body into the corresponding body positioning hole on the door panel; Insert the positioning plate on the decorative panel body into the positioning groove on the door sheet metal; Then adjust the gap between the glass guide channel and the B-pillar trim panel until the gap meets the design requirements. After the relative positions of the glass guide channel and the B-pillar trim panel are adjusted, fasteners are used to connect the trim panel to the door sheet metal by passing through the fixing holes on the trim panel body. Step 4: After completing Step 3, the assembly of the door sheet metal, glass guide channel, and B-pillar trim panel in the B-pillar assembly is complete. If reassembly is required, repeat Steps 2-3 above.

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