A method for manufacturing a 5G shielding cover with special reinforcing ribs

Abstract

The present invention relates to a method for making a 5G shielding cover with special reinforcing ribs, comprising the following steps: S1: designing a mold, setting an upper mold and a lower mold; setting a strong floating block and a reinforcing rib part fixing block on the lower mold, and setting a strong spring force transmission pin between the strong floating block and the reinforcing rib part fixing block, and controlling the floating of the strong floating block by twisting the strong spring force transmission pin; setting a reinforcing rib part between the strong floating block and the reinforcing rib part fixing block; setting a reinforcing rib groove on the lower mold; S2: compressing the strong spring force transmission pin, so that the strong floating block and the reinforcing rib part fixing block are closed, exposing the reinforcing rib part; squeezing the shielding cover material into the reinforcing rib groove of the upper mold to form reinforcing ribs. Compared with the prior art, the present invention adopts strong pressing to stretch the material, overcome the material stress, so that the stretched reinforcing ribs are evenly stressed and the stress is reduced. Improve production efficiency, improve the quality of cold stamping products, reduce risks, improve mold stability, and improve productivity.

Description

Technical Field

[0001] The present invention relates to the technical field of shielding covers, and in particular to a method for manufacturing a 5G shielding cover with special reinforcing ribs. Background Art

[0002] There are shielding devices on terminal products such as communications that require shielding functions. The shielding devices are installed on the PCB board of the electronic module and are set to play a shielding effect.

[0003] Scope of use of the shielding cover: used in conjunction with PCB circuit board set-top boxes, mobile phones, telecommunication equipment, etc.

[0004] The function of the shielding cover is to block the electromagnetic waves outside the cover to avoid the harm of electromagnetic radiation. The shielding cover is a tool used to shield electronic signals. Its function is to shield the influence of external electromagnetic waves on the internal circuit and the electromagnetic waves generated inside from radiating outward.

[0005] With the advent of 5G, more high-frequency data transmission is required, so a large number of notched shielding covers are used to facilitate PCB board data transmission. Traditionally, data transmission on PCB boards is done by opening notches in the shielding cover to allow the copper busbars on the PCB board to pass through. The shielding cover plays a shielding role, while the copper busbars on the PCB board play a role in data transmission.

[0006] In the shield cover continuous stamping die industry, since the specifications of the shield cover material exceed 40x40mm, the shield cover surface will collapse due to the influence of thermal expansion and contraction of high-temperature gas during welding and assembly. During the assembly process, the surface will be uneven, which is easy to cause mutual contact between electronic components. Therefore, many shield covers with larger specifications will have welding support blocks to solve the problem. Due to the contradiction in space utilization, many shield covers now adopt the method of making reinforcing ribs on large planes to overcome this problem. However, since the shape of the reinforcing ribs is close to the "well" shape, the mold design and production is not very convenient. It is easy to cause stress to cause uneven appearance or poor appearance. In conventional mold design, the upper and lower parts are generally slotted and hard-beaten, without pressing and stamping, and the appearance and flatness are easy to be poor. The method of hitting the reinforcing ribs is to force the material to deform through the convex and concave ribs, and the convex ribs are not pressed during the work process, which makes it easy for the material to deform when the convex ribs are stroked, and the flatness of the stroke shield cover product is uneven.

[0007] In the stamping of the mold industry mentioned above, the metal material being stamped (embossed) requires extremely high stress release, which is very difficult. It is difficult to meet the requirements of parts when designing and manufacturing stamping dies, so it has always been a difficult problem to solve in the stamping industry. In order to achieve better and more stable embossed effect, a better production plan must be made. Summary of the invention

[0008] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a method for making a 5G shielding cover with special reinforcing ribs, which adopts strong pressing to draw the material, overcome the material stress, make the drawn reinforcing ribs evenly stressed, and reduce the stress. It improves production efficiency, improves the quality of cold stamping products, reduces risks, improves mold stability, and improves productivity.

[0009] Implementing a special reinforcement manufacturing invention process to release the internal stress of the convex rib can make the mold stable in production, overcome the existing difficulties and improve the technical skills of the industry, and release the stress of the molded reinforcement ribs to break through the current technical difficulties. Improve design and technical capabilities, standardize mold manufacturing requirements and mold manufacturing universalization, change difficult technologies to standard universal high-tech production methods, to achieve stable production and quality improvement, to overcome quality problems on the existing basis, and further improve the stability of the reinforcement ribs in the stamping products of cold stamping dies, and the new special reinforcement rib manufacturing process can meet the above requirements.

[0010] By utilizing the pre-loading effect of the mold spring force, instead of adopting the hard forming in the prior art, strong material pressing is adopted to draw the material and overcome the material stress, so that the drawn reinforcing ribs are evenly stressed and the stress is reduced.

[0011] When designing the mold, it is intentional to add a strong pressing structural part device on the back side of the convex rib of the cold stamped material. When the mold is working, the material is pressed strongly first to keep the material fixed and stable, not affected by external forces, and the material is squeezed into the rib groove to strengthen the ribs, so as to reduce the material stress and prevent the metal material from deforming when working in the mold.

[0012] The present invention provides a method for manufacturing a 5G shielding cover with special reinforcing ribs, comprising the following steps:

[0013] S1: Design the mold, set the upper mold and the lower mold; the lower mold is provided with a strong buoyancy block and a reinforcing rib part fixing block, a strong spring force transmission pin is arranged between the strong buoyancy block and the reinforcing rib part fixing block, and the buoyancy of the strong buoyancy block is controlled by twisting the strong spring force transmission pin; a reinforcing rib part is arranged between the strong buoyancy block and the reinforcing rib part fixing block; a reinforcing rib groove is arranged on the lower mold, and the shielding cover material is squeezed into the reinforcing rib groove of the upper mold to form reinforcing ribs.

[0014] S2: Compress the strong spring force transmission pin to close the strong lifting block and the rib part fixing block to expose the rib part; squeeze the shielding cover material into the rib groove of the upper die to form the rib; due to the strong pressing effect of the strong lifting block, the material flow is stable and the material stress generated is reduced, so as not to affect the flatness deformation. The appearance size and appearance requirements meet the requirements of industry specifications.

[0015] Furthermore, in S1, the strong buoyancy height of the strong buoyancy block is 1.5 mm.

[0016] Furthermore, in S1, a limiting pressure plate is provided on the strong buoyancy block.

[0017] Furthermore, in S1, the limiting pressure plate is connected to the strong buoyancy block via a limiting pressure plate screw.

[0018] Furthermore, in S1, the reinforcing rib part is fixed in the lower mold by a reinforcing rib part fixing pin.

[0019] Furthermore, in S1, the reinforcing rib part is provided with two fixing pins.

[0020] Furthermore, in S1, the reinforcing rib part fixing pin is arranged on the reinforcing rib part fixing block.

[0021] Furthermore, in S1, the cross-section of the reinforcing rib part is in a "well" shape.

[0022] Furthermore, in S1, when the strong lifting block is in a lifting state, the reinforcing rib parts are not exposed, and when the lower mold is in a closed state, the reinforcing rib parts are exposed.

[0023] Furthermore, in S1, four strong spring force transmission pins are provided.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] Strong material pressing is adopted to stretch the material and overcome the material stress, so that the stretched reinforcement ribs are evenly stressed and the stress is reduced. Due to the strong material pressing effect of the strong lifting block, the material flow is stable and the material stress generated is reduced, thus not affecting the flatness deformation. It directly affects the production of stamping products in the cold stamping industry of shielding covers, improves the stable production standard process of large-sized thin materials with reinforcement ribs of 5G shielding covers, improves the competitiveness of production, greatly improves quality costs, improves production efficiency, improves the quality of cold stamping products, reduces risks, improves mold stability, and improves productivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the closed state of the lower mold with a shielding cover;

[0027] Figure 2 It is a schematic diagram of the closed state of the lower mold without the shielding cover;

[0028] Figure 3 It is a schematic diagram of the floating (relaxed) state of the lower mold without a shielding cover;

[0029] Figure 4 It is a top view of the lower mold with a shielding cover in a floating state;

[0030] Figure 5 This is a front view of the lower mold with a shielding cover in a floating state;

[0031] Figure 6 It is a side view of the lower mold with a shielding cover in a floating state;

[0032] Figure 7 It is a top view of the lower mold in the closed state without the shielding cover;

[0033] Figure 8 It is a front view of the lower mold in the closed state without the shielding cover;

[0034] Fig. 9 It is a schematic diagram of the closed state of the upper and lower molds;

[0035] Fig.10 Schematic diagram of the upper die structure;

[0036] Fig.11 It is a schematic diagram of the structure of the reinforcement parts.

[0037] Figure markings: 1-shielding cover with reinforcing ribs; 2-limiting pressure plate screw; 3-strong floating block; 4-reinforcing rib part; 5-reinforcing rib part fixing pin; 6-reinforcing rib part fixing block; 7-strong spring force transmission pin; 8-upper mold; 9-reinforcing rib groove. DETAILED DESCRIPTION

[0038] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms and other features not clearly described in this technical solution are all considered to be common technical features disclosed in the prior art.

[0039] Example 1

[0040] This embodiment provides a method for manufacturing a 5G shielding cover with special reinforcing ribs, comprising the following steps:

[0041] S1: Figure 1-11 As shown, a mold is designed, and an upper mold and a lower mold 8 are set; the lower mold is provided with a strong buoyancy block 3 and a reinforcing rib part fixing block 6, and a strong spring force transmission pin 7 is arranged between the strong buoyancy block 3 and the reinforcing rib part fixing block 6, and the buoyancy of the strong buoyancy block 3 is controlled by twisting the strong spring force transmission pin 7; a reinforcing rib part 4 is arranged between the strong buoyancy block 3 and the reinforcing rib part fixing block 6; a reinforcing rib groove 9 is arranged on the lower mold, and the shielding cover material is squeezed into the reinforcing rib groove 9 of the upper mold 8 to form reinforcing ribs.

[0042] S2: Compress the strong spring force transmission pin 7 to close the strong lifting block 3 and the reinforcing rib part fixing block 6, exposing the reinforcing rib part 4; squeeze the shielding cover material into the reinforcing rib groove 9 of the upper mold 8 to form reinforcing ribs; due to the strong pressing effect of the strong lifting block 3, the material flow is stable, the material stress generated is reduced, and the flatness deformation is not affected. The appearance size and appearance requirements meet the requirements of industry specifications.

[0043] In a specific implementation, in S1, the strong buoyancy height of the strong buoyancy block 3 is 1.5 mm.

[0044] In a specific implementation, in S1, a limiting pressure plate is provided on the strong buoyancy block 3.

[0045] In a specific implementation, in S1, the limiting pressure plate is connected to the strong buoyancy block 3 via the limiting pressure plate screw 2.

[0046] In a specific implementation, in S1, the reinforcing rib part 4 is fixed in the lower mold by a reinforcing rib part fixing pin 5.

[0047] In a specific implementation, in S1, two fixing pins 5 of the reinforcing rib part are provided.

[0048] In a specific implementation, in S1 , the reinforcing rib part fixing pin 5 is arranged on the reinforcing rib part fixing block 6 .

[0049] In a specific implementation, in S1, the cross section of the reinforcing rib part 4 is in a "well" shape.

[0050] In a specific implementation, in S1, when the strong lifting block 3 is in a lifting state, the reinforcing rib part 4 is not exposed, and when the lower mold is in a closed state, the reinforcing rib part 4 is exposed.

[0051] In a specific implementation, in S1, four strong spring force transmission pins 7 are provided.

[0052] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0053] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A method for manufacturing a 5G shielding cover with special reinforcing ribs, characterized in that: Including the following steps: S1: Design a mold, and set an upper mold and a lower mold (8); a powerful lifting block (3) and a reinforcing rib part fixing block (6) are arranged on the lower mold, a powerful spring force transmission pin (7) is arranged through between the powerful lifting block (3) and the reinforcing rib part fixing block (6), and the powerful lifting block (3) is controlled to lift by screwing the powerful spring force transmission pin (7); a reinforcing rib part (4) is arranged between the powerful lifting block (3) and the reinforcing rib part fixing block (6); a reinforcing rib groove (9) is arranged on the lower mold, and the shielding cover material is extruded into the reinforcing rib groove (9) of the upper mold (8) to form a reinforcing rib; S2: Compress the powerful spring force transmission pin (7) to close the powerful lifting block (3) and the reinforcing rib part fixing block (6), and expose the reinforcing rib part (4); extrude the shielding cover material into the reinforcing rib groove (9) of the upper mold (8) to form a reinforcing rib; due to the powerful material pressing effect of the powerful lifting block (3), the material flow is smooth, and the generated material stress becomes smaller, so as not to affect the flatness deformation.

2. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 1 is characterized in that: In S1, the powerful lifting height of the powerful lifting block (3) is 1.5 mm.

3. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 1, characterized in that: In S1, a limit pressing plate is arranged on the powerful lifting block (3).

4. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 3 is characterized in that: In S1, the limit pressing plate is connected to the powerful lifting block (3) through a limit pressing plate screw (2).

5. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 1, characterized in that: In S1, the reinforcing rib part (4) is fixed in the lower mold through a reinforcing rib part fixing pin (5).

6. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 5, characterized in that: In S1, there are two reinforcing rib part fixing pins (5).

7. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 5, characterized in that: In S1, the reinforcing rib part fixing pin (5) is arranged on the reinforcing rib part fixing block (6).

8. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 1, characterized in that: In S1, the cross section of the reinforcing rib part (4) is in a "well" shape.

9. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 1, characterized in that: In S1, when the powerful lifting block (3) is in the lifting state, the reinforcing rib part (4) is not exposed, and when the lower mold is in the closed state, the reinforcing rib part (4) is exposed.

10. The method for manufacturing a 5G shielding cover with special reinforcing ribs according to claim 1, characterized in that: In S1, there are four powerful spring force transmission pins (7).

Images