CN112134018A - Automobile antenna shielding assembly and manufacturing method thereof - Google Patents

Abstract

The invention relates to an automobile antenna shielding assembly, which comprises a plastic shell and a hardware which are arranged in a split mode, wherein the plastic shell is provided with an inner cavity with an opening at the upper end; one of the inner cavity wall of the plastic shell and the hardware is provided with a positioning convex part, the other is provided with a positioning groove, the hardware is arranged in the inner cavity of the plastic shell, and the positioning convex part is matched in the positioning groove; a manufacturing method of an automobile antenna shielding component is based on the automobile antenna shielding component; the method comprises the following steps: firstly, preparing a plastic shell and a hardware, wherein the plastic shell is formed by injection molding, and the hardware is obtained by punching and forming a metal material and then carrying out surface treatment; then the hardware is assembled in the inner cavity of the plastic shell from the upper end opening downwards; the universal joint is good in universality and convenient to assemble, and is convenient to follow-up replacement and maintenance, so that the maintenance cost is reduced; especially, three links of manual deburring, vacuum dust removal and appearance full inspection can be omitted, so that the labor cost is reduced, the production cost is reduced, and the product quality and the production efficiency are improved.

Description

Automotive antenna shielding assembly and method of making the same

technical field

The invention relates to the technical field of an automobile antenna shielding assembly, in particular to an automobile antenna shielding assembly and a manufacturing method thereof.

Background technique

The manufacturing process of the existing automobile antenna shield is as follows: firstly, the metal material is punched and formed to obtain the hardware; then the hardware is surface-treated to obtain the surface-treated hardware; finally, the surface-treated hardware is placed in an injection mold The plastic shell with embedded hardware is obtained by integral injection molding. Once the integral structure is damaged, it often needs to be replaced as a whole, resulting in increased maintenance costs.

The existing manufacturing process has the following defects: because the hardware is formed by stamping, there will be forming tolerances, which leads to unavoidable product tolerances. When the hardware is put into the injection mold for injection molding, due to the product tolerance of the hardware, it cannot be fully matched with the plastic mold, and there is a gap between the hardware and the plastic mold. During molding and injection, the rubber material will be squeezed into the gap between the hardware and the plastic mold, resulting in excess product plastic burrs. Once excess plastic burrs are generated, it is necessary to manually scrape the excess product burrs in rows. When manually scraping the product burrs, plastic core dust will be generated, and vacuum dust removal is required. After the step of scraping the product burrs is completed, a full appearance inspection is required, which leads to a complex process, an increase in labor costs and production costs, and also affects production efficiency and production quality.

Therefore, in the patent application of the present invention, the applicant has carefully researched a new technical solution to solve the above problems.

SUMMARY OF THE INVENTION

Aiming at the shortcomings of the above-mentioned prior art, the main purpose of the present invention is to provide an automobile antenna shielding assembly and a manufacturing method thereof, which have good versatility, convenient assembly, and facilitate subsequent replacement and maintenance, thereby reducing maintenance costs; The three links of manual deburring, vacuum dust removal and appearance inspection not only reduce labor costs, but also reduce production costs and improve product quality and production efficiency.

For realizing the above-mentioned purpose, the present invention adopts following technical scheme:

An automobile antenna shielding assembly, comprising a plastic casing and hardware which are arranged separately, wherein the plastic casing has an inner cavity with an open upper end;

In the inner cavity wall of the plastic shell and the hardware, one is provided with a positioning convex portion, and the other is provided with a positioning groove, the hardware is installed in the inner cavity of the plastic shell, and the positioning The protruding portion fits into the positioning groove.

As a preferred solution, the hardware has a bottom plate portion, an extension portion and an annular side plate portion, and two ends of the extension portion are respectively connected to the bottom plate portion and the annular side plate portion.

As a preferred solution, the annular side plate portion includes a first side plate portion, a second side plate portion, a third side plate portion, and a fourth side plate portion that are connected end to end. Correspondingly, the extension portion is provided with There are four and four extending portions arranged along the circumferential spacing of the bottom plate portion, and the corresponding side plate portions are connected to the bottom plate portion through the corresponding extending portions.

As a preferred solution, a first groove is recessed inward from the periphery of the bottom plate portion, and the extension portion is connected to the inner wall of the first groove.

As a preferred solution, a protruding portion is protruded from the lower end surface of the bottom plate portion, and a first through hole penetrating through the upper end surface of the bottom plate portion from the lower end surface of the extending portion is formed on the protruding portion;

The plastic shell is provided with a second through hole penetrating the inner cavity from the lower end surface of the plastic shell, the extending portion extends into the second through hole, and the first through hole communicates with the second through hole.

As a preferred solution, the second through hole includes a second groove recessed downward from the inner bottom wall of the inner cavity and a transition hole recessed upward from the lower end surface of the plastic shell. The second groove extends into the second groove, and the second groove communicates with the transition hole.

As a preferred solution, the inner bottom wall of the inner cavity is provided with a bearing block protruding upward, and the lower end surface of the hardware piece abuts on the bearing block.

A manufacturing method of an automobile antenna shielding assembly, which is based on the automobile antenna shielding assembly; comprises the following steps:

Step 1: prepare a plastic casing and hardware, wherein the plastic casing is injection-molded, and the plastic casing has an inner cavity with an open upper end; the hardware is obtained by stamping and forming a metal material and then surface-treated; In both the inner cavity wall and the hardware of the plastic shell, one is provided with a positioning convex portion, and the other is provided with a positioning groove;

Step 2: Assemble the hardware in the inner cavity of the plastic shell from the upper end opening downward, and the positioning protrusions are adapted to the positioning grooves.

As a preferred solution, in step 1, the surface treatment is full-surface electroplating treatment.

As a preferred solution, the surface treatment is a full-surface barrel nickel plating process.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, the hardware and the plastic shell are arranged separately, and then assembled through the cooperation of the card protrusions and the card grooves, and the versatility is good. , easy to assemble, and also facilitates subsequent replacement and maintenance, reducing maintenance costs; especially, through the design of separately molding the hardware and plastic shell and then assembling, there is no overlap between the two molding processes, and no product burrs will be generated. , which can save the three links of manual deburring, vacuum dust removal and appearance inspection, which not only reduces labor costs, but also reduces production costs and improves product quality and production efficiency;

Secondly, through the cooperation of the protruding part and the second through hole, the assembly and positioning of the hardware and the plastic shell are facilitated;

And, the metal parts are electroplated through nickel plating to improve the anti-oxidation and corrosion resistance of the hardware parts; furthermore, the hardware parts and the plastic shell are both simple in structure and easy to manufacture.

In order to illustrate the structural features and effects of the present invention more clearly, the following detailed description will be given in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

1 is a schematic diagram of a three-dimensional assembly structure of an embodiment of the present invention;

2 is a schematic diagram of another perspective three-dimensional assembly structure according to an embodiment of the present invention;

3 is an exploded structural view of an embodiment of the present invention;

4 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

5 is a schematic diagram of the hardware structure of the embodiment of the present invention;

Figure 6 is a bottom view of the hardware of the embodiment of the present invention.

Description of reference numbers:

10. Plastic shell 101. Inner cavity

11. Positioning groove 12. Round table

13. Cylinder part 14. Guide block

15. Card protrusion 16. Card slot

171, transition hole 172, second groove

18. Bearing block

20. Hardware

21. Positioning convex part 22. Bottom plate part

221, the first groove

23, extension part 24, first side plate part

25, the second side plate part 26, the third side plate part

27. The fourth side plate part 28. The extending part

281. A first through hole.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 to FIG. 6 , an automotive antenna shielding assembly includes a plastic casing 10 and a hardware 20 that are separately arranged, and the plastic casing 10 has an inner cavity 101 with an open upper end;

In the inner cavity wall of the plastic housing 10 and the hardware 20 , one is provided with a positioning protrusion 21 , and the other is provided with a positioning groove 11 , and the hardware 20 is installed in the plastic housing 10 . Inside the cavity 101 , the positioning protrusions 21 are adapted to fit into the positioning grooves 11 .

In the present embodiment, the plastic casing 10 has a substantially cubic structure, and the lower end surface of the plastic casing 10 is protruded downward with a circular truncated portion 12 . Preferably, the outer diameter of the circular truncated portion 12 decreases from top to bottom. . A column portion 13 is protruded downward from the lower end surface of the circular truncated portion 12 . A guide block 14 is provided on the peripheral side of the cylindrical portion 13 .

The lower end surface of the plastic housing 10 is further provided with a snap protrusion 15 and/or a snap slot 16 . Both the snap protrusions 15 and the two snap slots 16 surround the periphery of the round table portion 12 , wherein the two snap protrusions 15 are located at the opposite corners of the two corners of the lower end surface of the plastic housing 10 , and the two snap slots 16 are located on the lower end surface of the plastic housing 10 . The opposite corners of the other two corners. Through the cooperation of the column body 13 , the guide block 14 , the protrusion 15 and the groove 16 , the subsequent assembly of the product is convenient and firm, and the subsequent assembly efficiency is improved.

The hardware 20 has a bottom plate portion 22 , an extension portion 23 and a vertically arranged annular side plate portion. Two ends of the extension portion 23 are respectively connected to the bottom plate portion 22 and the annular side plate portion. The inner side of the annular side plate portion, the inner side of the extension portion 23 and the upper end surface of the bottom plate portion 22 together form the inner cavity 101 .

In this embodiment, the annular side plate portion includes a first side plate portion 24, a second side plate portion 25, a third side plate portion 26 and a fourth side plate portion 27 that are connected end to end. The extending portions 23 are provided with four, and the four extending portions 23 are arranged along the circumferential spacing of the bottom plate portion 22 , and the corresponding side plate portions are connected to the bottom plate portion 22 through the corresponding extending portions 23 . In this embodiment, the aforementioned latching protrusions 15 are disposed on the corresponding side plate portions; the peripheral edge of the bottom plate portion 22 is recessed with a first groove 221 , and the extending portion 23 is connected to the inner wall of the first groove 221 . Preferably, the extension portion 23 is integrally bent and extended upward from the inner wall of the first groove 221 .

A protruding portion 28 is protruded from the lower end surface of the bottom plate portion 22 , and a first through hole 281 is formed on the protruding portion 28 , which penetrates through the upper end surface of the bottom plate portion 22 from the lower end surface thereof; A second through hole penetrating the inner cavity 101 is formed from the lower end surface of the plastic housing 10 , the extending portion 28 extends into the second through hole, and the first through hole 281 communicates with the second through hole.

In this embodiment, the second through hole includes a second groove 172 recessed downward from the inner bottom wall of the inner cavity 101 and a transition hole 171 recessed upward from the lower end surface of the plastic housing 10 . The protruding portion 28 protrudes into the second groove 172 , and the second groove 172 communicates with the transition hole 171 . Preferably, the transition hole 171 extends through and penetrates the lower end surface of the cylindrical portion 13 .

The inner bottom wall of the inner cavity 101 is provided with a bearing block 18 protruding upward, and the lower end surface of the hardware 20 abuts on the bearing block 18; preferably, the bearing block 18 is provided with four and all four around the periphery of the second groove 172 .

A manufacturing method of an automobile antenna shielding assembly, which is based on the automobile antenna shielding assembly; comprising the following steps:

Step 1: Prepare the plastic casing 10 and the hardware 20, wherein the plastic casing 10 is injection-molded, and the plastic casing 10 has an inner cavity 101 with an open upper end; the hardware 20 is stamped and formed from a metal material It is obtained by surface treatment; in this embodiment, the surface treatment is a full-surface electroplating treatment, preferably, the surface treatment is a full-surface barrel nickel plating process, and after the barrel nickel plating process, the hardware 20 is prevented from oxidative corrosion . One of the inner cavity wall of the plastic housing 10 and the hardware 20 is provided with a positioning protrusion 21, and the other is provided with a positioning groove 11;

Step 2: Assemble the hardware 20 into the inner cavity 101 of the plastic housing 10 from the upper end opening downward, and the positioning protrusions 21 are fitted into the positioning grooves.

In this embodiment, the hardware 20 and the plastic shell 10 are formed independently of each other, and there is no overlap between the stamping process and the injection molding process, so there is no problem of matching the hardware 20 with the plastic mold parts, and thus no redundant Product plastic burrs. Since the product does not produce excess plastic burrs, there is no need to manually scrape the excess product burrs in rows; since there is no need to manually scrape the product burrs, no plastic core dust will be generated, and then there is no need to do a vacuum dust removal process, let alone a full appearance inspection. deal with. This product is made of traditional hardware 20 into the injection mold, and the structure is improved by integral injection molding. The structure is improved after component molding and then assembled. It can save the three links of manual deburring, vacuum dust removal and full appearance inspection, which not only reduces labor costs, but also reduces labor costs. And reduce production costs, improve product quality and production efficiency.

Since automotive antenna shielding components are easily affected by changes in ambient temperature and humidity, they must be sealed, moisture-proof and anti-static packaging after assembly, which can effectively prolong product storage time, ensure safe and reliable transportation of products, and make products easy to transport.

The main point of the design of the present invention is that after the hardware and the plastic shell are arranged separately, the assembly is realized by the cooperation of the card protrusion and the card groove, which has good versatility, convenient assembly, and is also convenient for subsequent replacement and maintenance, reducing maintenance costs. ; In particular, through the design of separate molding of hardware and plastic shell and then assembly, there is no overlap between the two molding processes, and no product burrs will be generated, which can save manual deburring, vacuum dust removal and complete appearance. Inspection of three links not only reduces labor costs, but also reduces production costs and improves product quality and production efficiency;

Secondly, through the cooperation of the protruding part and the second through hole, the assembly and positioning of the hardware and the plastic shell are facilitated;

And, the metal parts are electroplated through nickel plating to improve the anti-oxidation and corrosion resistance of the hardware parts; furthermore, the hardware parts and the plastic shell are both simple in structure and easy to manufacture.

The above are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still within the scope of the present invention. within the scope of the technical solution of the present invention.

Claims (10)

1. An automobile antenna shielding assembly, characterized in that: it comprises a plastic casing and hardware that are arranged separately, and the plastic casing has an inner cavity with an open upper end; In the inner cavity wall of the plastic shell and the hardware, one is provided with a positioning convex portion, and the other is provided with a positioning groove, the hardware is installed in the inner cavity of the plastic shell, and the positioning The protruding portion fits into the positioning groove. 2 . The automotive antenna shielding assembly according to claim 1 , wherein the hardware has a bottom plate portion, an extension portion and an annular side plate portion, and two ends of the extension portion are respectively connected to the bottom plate portion and the annular side plate portion. 3 . . 3 . The automotive antenna shielding assembly of claim 2 , wherein the annular side plate portion comprises a first side plate portion, a second side plate portion, a third side plate portion and a fourth side plate portion that are connected end to end. 4 . The side plate portion, correspondingly, the extending portion is provided with four and the four extending portions are arranged along the circumferential interval of the bottom plate portion, and the corresponding side plate portion is connected to the bottom plate portion through the corresponding extending portion. 4 . The automotive antenna shield assembly according to claim 2 , wherein a first groove is recessed inward from the periphery of the bottom plate portion, and the extension portion is connected to the inner wall of the first groove. 5 . 5 . The automotive antenna shielding assembly according to claim 2 , wherein a protruding portion is protruded from the lower end surface of the bottom plate portion, and the protruding portion is provided with a lower end surface penetrating the upper end surface of the bottom plate portion. 6 . the first through hole; The plastic shell is provided with a second through hole penetrating the inner cavity from the lower end surface of the plastic shell, the extending portion extends into the second through hole, and the first through hole communicates with the second through hole. 6 . The automotive antenna shielding assembly according to claim 5 , wherein the second through hole comprises a second groove recessed downward from the inner bottom wall of the inner cavity and a lower end surface of the plastic shell. 7 . In the upwardly concave transition hole, the protruding portion extends into the second groove, and the second groove communicates with the transition hole. 7 . The automotive antenna shielding assembly according to claim 1 , wherein a bearing block is protruded upward on the inner bottom wall of the inner cavity, and the lower end surface of the hardware piece abuts on the bearing block. 8 . 8. A manufacturing method of an automobile antenna shielding assembly, characterized in that: it is based on the automobile antenna shielding assembly described in any one of claims 1-7; comprising the following steps: Step 1: prepare a plastic casing and hardware, wherein the plastic casing is injection-molded, and the plastic casing has an inner cavity with an open upper end; the hardware is obtained by stamping and forming a metal material and then surface-treated; In both the inner cavity wall and the hardware of the plastic shell, one is provided with a positioning convex portion, and the other is provided with a positioning groove; Step 2: Assemble the hardware in the inner cavity of the plastic shell from the upper end opening downward, and the positioning protrusions are adapted to the positioning grooves. 9 . The method for manufacturing an automotive antenna shield assembly according to claim 8 , wherein in step 1, the surface treatment is full-surface electroplating treatment. 10 . 10 . The method for manufacturing an automotive antenna shield assembly according to claim 9 , wherein the surface treatment is a full-surface barrel nickel plating process. 11 .

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