CN115782773A - Automobile part - Google Patents
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- CN115782773A CN115782773A CN202211320274.XA CN202211320274A CN115782773A CN 115782773 A CN115782773 A CN 115782773A CN 202211320274 A CN202211320274 A CN 202211320274A CN 115782773 A CN115782773 A CN 115782773A
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Abstract
The invention discloses an automobile part, which comprises a base component and an outer decoration piece, wherein the inner side of the outer decoration piece is provided with a reversed V-shaped bulge, the base component is provided with a connecting screw which can be in threaded connection with the reversed V-shaped bulge, the inner side of the outer decoration piece is provided with a foot pad, the reversed V-shaped bulge is connected with the outer decoration piece through the foot pad, and the specific connecting method comprises the following steps: arranging positioning benchmarks in the X direction and the Y direction on the outer side edge of the outer decoration piece, and manufacturing a second positioning member which comprises a first positioning part and a second positioning part, wherein the first positioning part can be positioned on the positioning benchmarks in the X direction, and the second positioning part can be positioned on the positioning benchmarks in the Y direction; the foot pad is fixedly connected to the inner side of the outer decoration; the first positioning of the positioning component is positioned on the positioning reference of the X direction, the second positioning is positioned on the positioning reference of the Y direction, the inverted V-shaped bulge is accurately positioned, and then the inverted V-shaped bulge is fixed on the corresponding foot pad. The invention can effectively improve the position precision of the threaded holes on the inverted U-shaped bulges at the inner side of the outer decoration piece, and is convenient for the assembly and the connection of the outer decoration piece and the base member.
Description
Technical Field
The invention relates to the technical field of automobile part manufacturing, in particular to an automobile part.
Background
The existing automobile parts, especially the exterior trim parts of sheet materials, are generally metal parts formed by sheet metal, and are connected with internal basic components to form fixed automobile parts. In order to avoid damaging the appearance, the outer decoration piece and the base component are usually detachably connected in a plug-in type clamping mode or screwed for convenience in disassembly and assembly. Specifically, a clamping joint or a n-shaped bulge 1 (commonly called a doghouse) with a threaded hole as shown in fig. 1 is arranged on the inner side surface of the outer decoration, a buckle or a connecting through hole is arranged at a position corresponding to the base member 2, and when the outer decoration 3 is required to be connected with the base member, the clamping joint arranged on the outer decoration is pressed to clamp the clamping joint with the buckle; or the screw is screwed with the threaded hole of the outer decoration in the shape of the Chinese character 'ji' through the connecting through hole on the inner side of the base component.
However, the existing automobile parts with the above-mentioned connection structure still have the following technical defects: first, when the outer decoration is a metal part formed by a metal plate, the inverted-V-shaped protrusion cannot be integrally formed with the outer decoration by the metal plate process, and is usually fixed to the inner side of the outer decoration by a spot welding process. That is to say, the n-shaped protrusions are arranged on the inner side of the outer decoration by adopting a secondary processing method, so that the position accuracy of the threaded holes in the n-shaped protrusions can be reduced, and particularly, when the size of the outer decoration is large, the position accuracy of the threaded holes in the n-shaped protrusions connected to the inner side of the outer decoration by welding is difficult to ensure, and further the subsequent assembly accuracy is influenced.
Disclosure of Invention
The invention aims to provide an automobile part, which can effectively improve the position precision of a threaded hole on a reversed V-shaped bulge on the inner side of an outer decoration and is convenient for the assembly and the connection of the outer decoration and a base component.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an automobile part, includes inboard basic component, sets up the outer gadget in the basic component outside, it is protruding that outer gadget inboard is equipped with nearly font, nearly font is protruding including middle diaphragm, the riser of body coupling at diaphragm both ends, by the connecting plate of the lateral transverse extension of riser tip to form the installation space between the bellied riser of nearly font about, be equipped with the connecting screw with the diaphragm spiro union on the basic component, thereby make outer gadget and basic component form and to dismantle the connection, be equipped with the pad foot in the outer gadget inboard, the bellied connecting plate of nearly font is connected with outer gadget through filling up the foot, nearly font is protruding to be connected with outer gadget inboard through following method:
a. arranging positioning benchmarks in the X direction and the Y direction at the positions, close to the corresponding foot pads, of the outer edge of the outer decoration, and manufacturing a positioning member, wherein the positioning member comprises a first positioning part and a second positioning part, the first positioning part can be positioned on the positioning benchmarks in the X direction of the outer edge of the outer decoration, the second positioning part can be positioned on the positioning benchmarks in the Y direction of the outer edge of the outer decoration, and the positioning part is used for positioning the n-shaped bulges;
b. the foot pad is fixedly connected to the corresponding connecting plate on the inner side of the outer decorating part through spot welding;
c. placing the positioning parts of the positioning components between the adjacent foot pads, positioning the first positioning of the positioning components on the positioning reference of the X direction, positioning the second positioning of the positioning components on the positioning reference of the Y direction, positioning the positioning components at the outer edge of the outer decoration accurately, attaching the connecting plates of the n-shaped bulges to the corresponding foot pads, and positioning the n-shaped bulges at the positioning parts of the positioning components;
d. the connecting plate with the n-shaped bulges is fixed on the corresponding foot pads.
The automobile part of the present invention includes an exterior trim in which an inner base member is provided on an outer side of the base member, and it should be noted that the automobile part herein mainly refers to a sheet material type part having a large area. Similarly to the prior art, the outer decoration is provided with a n-shaped protrusion on the inner side thereof to facilitate detachable quick connection with the base member.
Particularly, the inner side of the outer decoration is provided with a foot pad corresponding to the connecting plate of the reversed V-shaped bulge so that the connecting plate of the reversed V-shaped bulge can be connected with the outer decoration through the foot pad. As described in the background art, when the outer decoration is a metal part formed by a metal plate, the inverted-v-shaped protrusion cannot be integrally formed with the outer decoration by a metal plate process, so that the position accuracy of the inverted-v-shaped protrusion is low, and the assembly accuracy of the outer decoration and the base member is affected.
The invention creatively leads the n-shaped bulge to realize the accurate positioning with the outer decoration piece through the positioning component, and then fixes the n-shaped bulge on the inner side of the outer decoration piece. It will be appreciated that the principle of the locating member as a tooling fixture used in the manufacturing process is within the skill of the art. However, the positioning member of the present invention is distinct from the existing positioning members in structure and design principle. The existing positioning member is usually provided with positioning references in two directions which are approximately intersected at 90 degrees, so that the positioning member is reliably positioned relative to the outer decoration in both directions X, Y. When the exterior trim is positioned by using the side edge of the exterior trim, the exterior trim is too far away from the positioning point, and the rigidity of the positioning member is weak, which also reduces the positioning accuracy. In the invention, the two positioning benchmarks are arranged at the positions, close to the corresponding foot pads, of the outer side edges of the outer decoration parts. Of course, there should be some spacing between the two positioning references. Therefore, on one hand, the distance between the positioning member and the positioning point can be greatly shortened, so that the rigidity and the final positioning precision of the positioning member can be improved, on the other hand, the two positioning benchmarks can play a role in positioning in one direction at the same time, and the positioning member can be conveniently and accurately positioned on the outer edge of the outer decoration through simple structures. Thereby achieving reliable positioning in the other direction.
It can be understood that the foot pad is only used for fixing the connecting plate of the n-shaped protrusion, and therefore, the position precision requirement is not high. That is, the positioning member only needs to position the zigzag projection. In addition, the connecting plate is connected with the outer decoration through the foot pad, so that the length of the vertical plate in the n-shaped bulge can be greatly shortened, and the rigidity of the n-shaped bulge is favorably improved.
Preferably, in step d, the connection plate is fixed to the corresponding footpad by spot welding.
It can be understood that when the connecting plate is fixed on the corresponding pad through spot welding, the fixing connection after the positioning of the n-shaped bulges is convenient, and the connecting strength of the connecting plate and the pad can be ensured.
Preferably, the foot pad is provided with a connecting screw hole, the connecting plate is provided with a connecting through hole, a fixing screw in threaded connection 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.
In the scheme, the connecting plate and the pad foot are connected through the fixing screw, so that the disassembly, the assembly and the maintenance are convenient, and particularly, the diameter of the connecting through hole is 1.2-1.5 times of that of the fixing screw, so that the n-shaped bulge can have a small amount of displacement during the fixing. When the n-shaped bulges are connected with the foot pads through the fixing screws, the n-shaped bulges can not form lateral displacement, and the position precision of the n-shaped bulges during assembly can be further favorably ensured.
Preferably, the fixing screw is provided with a fixing washer, and the thickness of the fixing washer is 0.8-1.0 times of the thickness of the connecting plate.
The washer is a conventional part in a screw connection structure, the invention creatively enables the thickness of the fixing washer to be 0.8-1.0 times of the thickness of the connecting plate, thereby ensuring the compressive strength of the fixing washer, enabling the diameter of the connecting through hole to be far larger than that of the fixing screw, and enabling the n-shaped bulge to have enough position adjustment margin.
Preferably, the outer decoration is made of plastic, the n-shaped protrusions and the outer decoration are integrally formed through injection molding, embedded nuts are arranged in installation gaps of the n-shaped protrusions, and the connecting screws on the base members are in threaded connection with the embedded nuts.
In the scheme, the outer decoration piece is made of plastic, and the n-shaped protrusions and the outer decoration piece can be integrally injection molded, so that the outer decoration piece is greatly convenient to process and manufacture. In particular, a mosaic nut is arranged in the mounting gap of the n-shaped bulge so as to improve the connection strength with a connecting screw on the base component.
Preferably, a bottom hole of a threaded hole in threaded connection with the connecting screw is arranged in the middle of the transverse plate of the n-shaped protrusion, and the positioning part is provided with a positioning column capable of being matched in the bottom hole.
In the scheme, the bottom hole of the threaded hole in threaded connection with the connecting screw is arranged in the middle of the transverse plate, so that when the protrusions in the shape of the Chinese character 'ji' are required to be connected, the positioning columns of the positioning portions can conveniently enter the bottom hole, and the protrusions in the shape of the Chinese character 'ji' can realize central positioning. It can be known that what the protruding needs location of nearly font really is the central point with connecting screw threaded connection's screw hole puts, and this scheme both can realize the central point of screw hole and fix a position, makes things convenient for the protruding manufacturing of nearly font again, is favorable to the protruding connecting plate of nearly font and the relative positioning and the fixing of pad foot then.
Preferably, a positioning notch or a positioning step is arranged on the outer edge of the outer decoration part close to the n-shaped bulge, so that the outer edge forms a positioning edge, the first positioning and the second positioning comprise positioning hooks which can be hooked on the positioning edge, in the step c, the positioning hooks of the first positioning and the second positioning are hooked on the positioning edge, and the positioning hooks of the second positioning are positioned at the positioning notch or the positioning step, so that the positioning part can be reliably positioned on the outer decoration part.
The positioning notch or the positioning step can ensure that the first positioning part and the second positioning part can be reliably positioned on the outer side edge of the outer decoration part. It should be noted that the positioning notch or the positioning step may be an inherent structure of the outer edge of the outer trim, or may be an auxiliary structure provided for the first positioning and the second positioning.
Therefore, the invention has the following beneficial effects: the position accuracy of the threaded holes in the inverted U-shaped protrusions on the inner side of the outer decoration can be effectively improved, and the outer decoration is convenient to assemble and connect with the base member.
Drawings
Fig. 1 is a schematic view of a connection structure of a base member, a t-shaped projection and an exterior trim of the related art.
Fig. 2 is a schematic diagram of an embodiment of the present invention.
Fig. 3 is a schematic view of a structure of the positioning member.
In the figure: 1. the decorative component comprises a character-shaped bulge 11, a transverse plate 12, a vertical plate 13, a connecting plate 2, a base component 3, an outer decoration 4, a pad 5, a positioning component 51, a first positioning part 52, a second positioning part 53 and a positioning part.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
As shown in fig. 2, an automobile part mainly refers to a sheet material type part having a large area, such as a side panel. Specifically, the exterior member includes an inner base member 2 and an outer garnish 3 provided on the outer side of the base member. In order to facilitate the assembly and disassembly of the exterior trim and the base component, a n-shaped protrusion 1 can be arranged on the inner side of the exterior trim, and specifically, the n-shaped protrusion comprises a transverse plate 11 in the middle, vertical plates 12 integrally connected to two ends of the transverse plate and bent downwards, and connecting plates 13 transversely bent and extended outwards from the end parts of the vertical plates, so that an installation gap is formed between the left vertical plate and the right vertical plate of the n-shaped protrusion. In addition, a connecting screw which is screwed with the transverse plate is arranged on the base component, so that the outer decoration and the base component are detachably connected. In addition, the inner side of the outer decoration is provided with a pad foot 4 corresponding to the position of the connecting plate with the n-shaped bulge, and the connecting plate with the n-shaped bulge is connected with the outer decoration through the pad foot. Specifically, the n-shaped protrusion is connected to the inside of the exterior trim by:
a. as shown in fig. 3, positioning references in the X direction and the Y direction are set at positions on the outer edge of the outer decoration close to corresponding foot pads, and then a positioning member 5 is manufactured, wherein the positioning member includes a first positioning portion 51 capable of being positioned on the positioning reference in the X direction of the outer edge of the outer decoration, a second positioning portion 52 capable of being positioned on the positioning reference in the Y direction of the outer edge of the outer decoration, and a positioning portion 53 for positioning the n-shaped protrusion. That is, the first positioning, the second positioning, and the positioning portions are spliced into one positioning member. It can be understood that a plurality of n-shaped bulges are required to be arranged on the inner side of the outer decorating part, and correspondingly, a plurality of positioning components corresponding to the n-shaped bulges can be manufactured;
b. the foot pad is fixedly connected to the corresponding connecting plate on the inner side of the outer decoration part through spot welding, and the foot pad can be positioned on the inner side of the outer decoration part through the existing positioning technology. The foot pad is only used for fixing the connecting plate with the n-shaped bulges, so that the requirement on the position precision is not high;
c. placing the positioning parts of the positioning members between the adjacent foot pads, positioning the first positioning of the positioning members on a positioning reference in the X direction of the outer edge of the outer decoration, positioning the second positioning of the positioning members on a positioning reference in the Y direction of the outer edge of the outer decoration, positioning the positioning members at the outer edge of the outer decoration accurately, attaching the connecting plates of the n-shaped bulges to the corresponding foot pads, and positioning the n-shaped bulges at the positioning parts of the positioning members;
d. the connecting plates of the reversed V-shaped bulges are fixed on the corresponding pad feet, and at the moment, the basic component can be connected with the transverse plates of the reversed V-shaped bulges, so that the connection between the outer decoration piece and the basic component is realized.
It should be noted that, the two positioning references are both arranged on the outer edge of the outer decoration part close to the corresponding foot pad (of course, a certain distance should be kept between the two positioning references). Therefore, on one hand, the distance between the positioning datum and the n-shaped bulge can be greatly shortened, so that the rigidity and the final positioning precision of the positioning component can be improved, on the other hand, the two positioning datums can play a role in positioning in one direction at the same time, and the positioning component can be conveniently and accurately positioned on the outer edge of the outer decoration through simple structures, so that the reliable positioning in the other direction is realized. In addition, three sides of the transverse plate of the n-shaped bulge can be bent downwards to form a vertical plate, so that the rigidity and the strength of the n-shaped bulge are improved.
As a preferable scheme, in the step d, the connecting plate is fixed on the corresponding pad through spot welding, which not only facilitates the fixed connection after the positioning of the n-shaped protrusion, but also ensures the connection strength of the connecting plate and the pad.
Furthermore, a connecting screw hole can be formed in the pad foot, a connecting through hole is formed in the connecting plate, and a fixing screw connected with the connecting screw hole in a threaded mode is arranged in the connecting through hole, so that the pad foot of the connecting plate protruding in a shape like a Chinese character 'ji' can be connected in a threaded mode. In particular, the diameter of the coupling through-hole is 1.2 to 1.5 times the diameter of the fixing screw, so that the coupling plate can be displaced a small amount relative to the foot pad, and the exact coupling of the zigzag projection to the foot pad can be ensured even if the position of the foot pad is deviated by a small amount.
Furthermore, a fixing washer may be provided on the fixing screw such that the thickness of the fixing washer is 0.8 to 1.0 times the thickness of the connection plate, thereby securing the compressive strength of the fixing washer, so that the diameter of the connection through hole is much greater than that of the fixing screw, thereby providing sufficient space for the position adjustment of the n-shaped projection.
In order to facilitate the rapid and convenient positioning of the n-shaped protrusion through the positioning component, a bottom hole of a threaded hole in threaded connection with a connecting screw is firstly machined in the middle of a transverse plate of the n-shaped protrusion, and a positioning column capable of being matched in the bottom hole is arranged on a positioning part of the positioning component. When the n-shaped bulges need to be positioned, the positioning columns of the positioning parts can enter the bottom holes of the n-shaped bulges, so that the n-shaped bulges can be positioned in the center. When the n-shaped bulges are fixed on the foot pads, the bottom holes can be tapped, and corresponding threaded hole machining is completed. Because what the arch of the shape of Chinese character 'ji' really needs to be positioned is the central point of the screwed hole in threaded connection with the connecting screw, therefore, this scheme can both realize the central point of the screwed hole and make things convenient for the protruding manufacturing of the shape of Chinese character 'ji' again, help the protruding connecting plate of the shape of Chinese character 'ji' and position and fix with relatively of the foot pad then.
As another preferred scheme, the outer decoration is made of plastic, the n-shaped bulges and the outer decoration are integrally formed in an injection molding mode, the embedded nuts are arranged in the installation gaps of the n-shaped bulges, and the connecting screws on the base component are in threaded connection with the embedded nuts.
Because the outer decoration is made of plastic, the n-shaped bulges and the outer decoration can be integrally formed by injection molding, thereby greatly facilitating the processing and the manufacturing. And the mosaic nut arranged in the mounting gap of the n-shaped bulge can effectively improve the connection strength of the outer decoration piece and the base member.
In order to facilitate the first positioning and the second positioning at the positioning edge, a positioning notch or a positioning step can be arranged at the outer edge of the outer decoration part close to the corresponding n-shaped protrusion, so that the outer edge forms the positioning edge, and the first positioning and the second positioning comprise positioning hooks which can be hooked at the positioning notch of the positioning edge or abut against the positioning step. Thus, in the step c, the positioning hooks for the first positioning and the second positioning are hooked on the positioning edge, wherein the positioning hook for the second positioning is positioned at the positioning notch or the positioning step, so that the positioning part can be reliably positioned on the external decorating part.
It should be noted that the positioning notch or the positioning step may be an inherent structure of the outer edge of the outer trim, or may be an auxiliary structure provided for the first positioning and the second positioning.
Claims (7)
1. The utility model provides an automobile part, includes inboard basic component, sets up the outer gadget in the basic component outside, it is protruding that outer gadget inboard is equipped with nearly font, and nearly font is protruding including middle diaphragm, the riser of body coupling at diaphragm both ends, by the connecting plate of the horizontal extension of riser tip to the outside to form the installation space between the bellied left and right sides riser of nearly font, be equipped with the connecting screw with the diaphragm spiro union on the basic component, thereby make outer gadget and basic component form and to dismantle the connection, characterized by is equipped with the pad foot in the outer gadget inboard, the bellied connecting plate of nearly font is connected with outer gadget through filling up the foot, nearly font is protruding to be connected with outer gadget inboard through following method:
a. arranging an X-direction positioning reference and a Y-direction positioning reference at the position, close to the corresponding foot pad, of the outer edge of the outer decoration, and manufacturing a positioning member, wherein the positioning member comprises a first positioning part and a second positioning part, the first positioning part can be positioned on the X-direction positioning reference of the outer edge of the outer decoration, the second positioning part can be positioned on the Y-direction positioning reference of the outer edge of the outer decoration, and the positioning part is used for positioning the n-shaped protrusion;
b. the foot pad is fixedly connected to the corresponding connecting plate at the inner side of the outer decoration part through spot welding;
c. placing the positioning parts of the positioning components between the adjacent foot pads, positioning the first positioning of the positioning components on the positioning reference of the X direction, positioning the second positioning of the positioning components on the positioning reference of the Y direction, positioning the positioning components at the outer edge of the outer decoration accurately, attaching the connecting plates of the n-shaped bulges to the corresponding foot pads, and positioning the n-shaped bulges at the positioning parts of the positioning components;
d. the connecting plate with the n-shaped bulges is fixed on the corresponding foot pads.
2. The automotive part of claim 1, wherein in step d, the connecting plates are fixed to the corresponding pads by spot welding.
3. The automobile part as claimed in claim 1, wherein the foot pad is provided with a coupling screw hole, the coupling plate is provided with a coupling through hole, a fixing screw is provided in the coupling through hole to be screwed with the coupling screw hole, and the diameter of the coupling through hole is 1.2 to 1.5 times the diameter of the fixing screw.
4. An automobile part according to claim 3, characterized in that the fixing screw is provided with a fixing washer, the thickness of which is 0.8-1.0 times the thickness of the connecting plate.
5. The automobile part as claimed in claim 1, wherein the outer trim is made of plastic, the n-shaped protrusion is integrally injection molded with the outer trim, an insert nut is provided in a mounting space of the n-shaped protrusion, and a connection screw of the base member is threadedly engaged with the insert nut.
6. The automobile part as claimed in claim 1, wherein a bottom hole of a screw hole to which the connection screw is screwed is provided in the middle of the cross plate of the n-shaped projection, and a positioning post adapted to fit in the bottom hole is provided in the positioning portion.
7. The automobile part as claimed in claim 1, wherein a positioning notch or a positioning step is provided on an outer edge of the exterior trim part adjacent to the n-shaped protrusion so that the outer edge forms a positioning edge, the first positioning and the second positioning include positioning hooks which can be hooked on the positioning edge, and in step c, the positioning hooks of the first positioning and the second positioning are hooked on the positioning edge, wherein the positioning hooks of the second positioning are positioned at the positioning notch or the positioning step so that the positioning portion is reliably positioned with respect to the exterior trim part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211320274.XA CN115782773A (en) | 2022-10-26 | 2022-10-26 | Automobile part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211320274.XA CN115782773A (en) | 2022-10-26 | 2022-10-26 | Automobile part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115782773A true CN115782773A (en) | 2023-03-14 |
Family
ID=85433890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211320274.XA Pending CN115782773A (en) | 2022-10-26 | 2022-10-26 | Automobile part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115782773A (en) |
-
2022
- 2022-10-26 CN CN202211320274.XA patent/CN115782773A/en active Pending
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