CN112599943B

CN112599943B - Novel stamping and rolling low pass and processing technology thereof

Info

Publication number: CN112599943B
Application number: CN202011276523.0A
Authority: CN
Inventors: 蔡松; 王伟琦
Original assignee: Wuhan Fingu Electronic Technology Co Ltd
Current assignee: Wuhan Fingu Electronic Technology Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2022-02-11
Anticipated expiration: 2040-11-16
Also published as: CN112599943A

Abstract

The utility model provides a novel low pass of system is rolled up in punching press and processing technology thereof, including the high resistance, interval arrangement has the low resistance on the high resistance, the both ends of high resistance are equipped with the assembly end respectively, the low resistance is frame construction, be equipped with low logical groove in the filter cavity, the both ends that correspond low logical groove in the filter cavity are equipped with public chamber syntonizer and antenna port connecting rod respectively, high resistance and low resistance are installed at low logical inslot, and the outer wall of low resistance offsets with the inner wall of low pass groove, an assembly end links to each other with the connection piece of public chamber syntonizer, another assembly end links to each other with antenna port connecting rod. The low resistance is designed into a frame structure, so that the material consumption is greatly reduced, and the cost is reduced; because the low resistance of the frame structure has elasticity, the low resistance can be automatically adapted according to the size of the low through groove during assembly, so that the four surfaces of the low pass can be firmly fixed in the low through groove due to the elasticity, the low pass and the low through groove are ensured to be in tight fit, and the consistency of tapping time delay is fundamentally ensured. Is suitable for low-pass production.

Description

Novel stamping and rolling low pass and processing technology thereof

Technical Field

The invention relates to the technical field of communication, in particular to a novel stamping and rolling low pass applied to a filter and a processing technology thereof.

Background

At present, a filter, as a communication device for frequency selection and signal suppression, plays an important role in the field of communication, and one of the important components is low-pass.

As shown in fig. 4, the conventional low pass generally includes a high resistance, a low resistance and an assembling terminal, the low resistance is arranged on the high resistance at intervals, the low resistance is a solid block structure, and the assembling terminal is respectively arranged at two ends of the high resistance. The low-pass of this structure has the following problems in practical production:

1. the low resistance of the existing low pass mostly adopts a solid square structure, so the production cost is very high;

2. due to processing errors, a gap between the low-pass groove and the low-pass groove fluctuates between minus 0.1mm and plus 0.1mm during assembly, and the low resistance size of the solid square structure is not adjustable, so that the problem of over-tight or over-loose matching exists. The tap time delay determines the quality of the echo of a signal path, the better the echo is, the better the communication quality is, and the worse the echo is. The tap becomes strong in the close fit, and becomes weak in the loose fit, which may lead to a large debugging difficulty. Meanwhile, in the case of too loose fit, the shaking of the parts may seriously affect the stability of intermodulation.

Disclosure of Invention

The invention aims to provide a novel stamping and rolling low-pass and a processing technology thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a novel low pass is made in punching press book installs and is used for suppressing the harmonic on the filter cavity, and it includes high resistance, low resistance and assembly end at least, interval arrangement has on the high resistance the low resistance, the both ends of high resistance are equipped with respectively the assembly end, the low resistance is frame construction, be equipped with low logical groove in the filter cavity, the high resistance with the low resistance is installed low logical inslot.

By designing the low resistance into a frame structure, the consumption of materials is greatly reduced on the premise of ensuring the performance, so that the cost is greatly reduced; meanwhile, the low resistance of the frame structure has elasticity, so that the low resistance can be automatically adapted according to the size of the low through groove during assembly, and the four surfaces of the low pass can be firmly fixed in the low through groove due to the elasticity, so that the low pass and the low through groove are ensured to be in tight fit, and the consistency of tapping time delay is fundamentally ensured; moreover, the low pass and the low pass groove are in tight fit, so that the material cannot shake, and the intermodulation stability is further improved.

Preferably, the high resistance is located at the center of the frame structure.

Preferably, the axis of high resistance is arranged perpendicular to the plane of low resistance of the frame structure.

Preferably, frame construction's low resistance includes high resistance connecting portion, first portion of bending, the second portion of bending, third portion of bending and fourth portion of bending, the one end of high resistance connecting portion with the high resistance links to each other, the other end of high resistance connecting portion with the one end of first portion of bending links to each other, the other end of first portion of bending with the one end of second portion of bending links to each other, the other end of second portion of bending with the one end of third portion of bending links to each other, the other end of third portion of bending with the one end of fourth portion of bending links to each other, first portion of bending, second portion of bending, third portion of bending and fourth portion of bending enclose into frame construction.

Preferably, the high resistance connecting portion with contained angle between the first portion of bending is 90, first portion of bending with contained angle between the second portion of bending is 90, the second portion of bending with contained angle between the third portion of bending is 90, the third portion of bending with contained angle between the fourth portion of bending is 90.

Preferably, the frame structure is square. Of course, other shapes may be used.

Preferably, the high-resistance connecting portion and the first bending portion have the same side length, the second bending portion, the third bending portion and the fourth bending portion have the same side length, and the first bending portion has the side length half of that of the fourth bending portion.

Preferably, a common cavity resonator and an antenna port connecting rod are respectively arranged at two ends of the filter cavity corresponding to the low through groove, the outer wall of the low resistance abuts against the inner wall of the low through groove, one assembling end is connected with a connecting sheet of the common cavity resonator, and the other assembling end is connected with the antenna port connecting rod.

A novel processing technology for low-pass punching and rolling comprises the following steps

S1: the sheet material is subjected to a blanking procedure to obtain a low-pass sheet material with an unfolded plane appearance

S2: and bending the low-pass plate to obtain a low-pass finished product.

The forming of the low-pass is completed by adopting a bending, stamping and rolling process, the process is simple, and the cost is low. Of course, other processes may be used to complete the formation of the present low pass.

Preferably, the blanking process is performed on the sheet material to obtain a low-pass sheet material with an unfolded plane shape, and the method specifically comprises the following steps:

s11: feeding, opening a punching die, feeding the cut plate into a lower die of the punching die, and positioning;

s12: punching a positioning hole, closing a punching die, and punching a positioning hole on each of two sides of the plate to obtain the plate with the positioning hole;

s13: feeding, opening a blanking die, feeding the plate with the positioning hole, and positioning;

s14: and (3) blanking, closing a blanking die, blanking and forming the unfolded size of the plane appearance to obtain the low-pass sheet material unfolded with the plane appearance.

Preferably, the bending process is performed on the low-pass plate material to obtain a low-pass finished product, and the bending process specifically comprises the following steps:

s21: bending and forming the first bending part and the second bending part through a first bending die;

s22: bending and forming the third bending part through a second bending die;

s23: and finishing the bending forming of the fourth bending part through a third bending die to obtain a low-pass finished product.

The bending forming of the first bending part and the second bending part is completed through one bending die, so that the production efficiency is greatly improved.

Compared with the prior art, the invention has the beneficial effects that:

1. by designing the low resistance into a frame structure, the consumption of materials is greatly reduced on the premise of ensuring the performance, so that the cost is greatly reduced;

2. the low resistance of the frame structure has elasticity, so that the low resistance can be automatically adapted according to the size of the low through groove during assembly, and the four surfaces of the low pass can be firmly fixed in the low through groove due to the elasticity, so that the low pass and the low through groove are tightly matched, and the consistency of tapping time delay is fundamentally ensured;

3. the low pass and the low pass groove are tightly matched, so that the material cannot shake, and the intermodulation stability is further improved;

4. the low-pass forming is completed by adopting a bending, stamping and rolling process, the process is simple, and the cost is low;

5. the bending forming of the first bending part and the second bending part is completed through one bending die, so that the production efficiency is greatly improved.

Drawings

FIG. 1 is a schematic diagram of a conventional low pass structure;

FIG. 2 is a schematic diagram of the present low pass structure;

FIG. 3 is a schematic diagram of a partial enlarged structure of the low pass filter;

FIG. 4 is a schematic view of the present low pass assembly;

FIG. 5 is a low pass simulation plot pattern;

FIG. 6 is a simulation graph of the present low pass;

FIG. 7 is a schematic structural view of a low pass sheet material with an unfolded planar profile;

FIG. 8 is a schematic structural view of FIG. 7 after being bent by a first bending mold;

fig. 9 is a schematic structural view of fig. 8 after being bent by a second bending die;

fig. 10 is a schematic structural view of fig. 9 after being bent by a third bending die;

fig. 11 is a schematic view of the assembly structure of the present invention.

In the figure: high resistance 1, low resistance 2, high resistance connecting portion 2a, first bending portion 2b, second bending portion 2c, third bending portion 2d, fourth bending portion 2e, assembly end 3, filter cavity 4, low pass groove 4a, common cavity resonator 5, antenna port connecting rod 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-11, the invention provides a novel stamped and rolled low pass, which includes a high resistance 1, a low resistance 2, an assembly end 3 and a filter cavity 4, wherein the low resistance 2 is arranged on the high resistance 1 at intervals, the assembly end 3 is respectively arranged at two ends of the high resistance 1, the low resistance 2 is a frame structure, a low through groove 4a is arranged in the filter cavity 4, a common cavity resonator 5 and an antenna port connecting rod 6 are respectively arranged at two ends of the filter cavity 4 corresponding to the low through groove 4a, during assembly, the high resistance 1 and the low resistance 2 are arranged in the low through groove 4a, an outer wall of the low resistance 2 abuts against an inner wall of the low through groove 4a, one assembly end 3 is connected with a connecting piece of the common cavity resonator 5, and the other assembly end 3 is connected with the antenna port connecting rod 6. The low resistance 2 is designed into a frame structure, so that the material consumption is greatly reduced on the premise of ensuring the performance, and the cost is greatly reduced; meanwhile, the low resistance 2 adopting the frame structure has elasticity, so that the low resistance 2 can be automatically adapted according to the size of the low through groove during assembly, so that the four surfaces of the low pass can be firmly fixed in the low through groove due to the elasticity, the low pass and the low through groove are ensured to be tightly matched, and the consistency of tapping time delay is fundamentally ensured; moreover, the low pass and the low pass groove are in tight fit, so that the material cannot shake, and the intermodulation stability is further improved. In order to ensure that the low pass and the low through groove are tightly matched, the width and height of the low pass need to be larger than the upper tolerance of the low pass groove.

The high resistance 1 is located in the center of the frame structure. The axis of the high resistance 1 is arranged perpendicular to the plane of the low resistance 2 of the frame structure. Frame construction's low resistance 2 includes high resistance connecting portion 2a, first portion 2b that bends, second portion 2c that bends, third portion 2d that bends and fourth portion 2e that bends, high resistance connecting portion 2 a's one end with high resistance 1 links to each other, high resistance connecting portion 2 a's the other end with first portion 2 b's one end links to each other, first portion 2 b's the other end with the second portion 2c that bends's one end links to each other, the second portion 2c that bends's the other end with third portion 2 d's one end links to each other, third portion 2 d's the other end with fourth portion 2 e's one end links to each other, first portion 2b that bends, second portion 2c that bends, third portion 2d and fourth portion 2e that bends enclose into frame construction. High resistant connecting portion 2a with contained angle between the first portion of bending 2b is 90, first portion of bending 2b with contained angle between the second portion of bending 2c is 90, the second portion of bending 2c with contained angle between the third portion of bending 2d is 90, third portion of bending 2d with contained angle between the fourth portion of bending 2e is 90.

The frame structure is square. Of course, other shapes may be used. The high resistance connecting part 2a with the length of side of first bending part 2b is equal, the second bending part 2c the third bending part 2d with the length of side of fourth bending part 2e is equal, just the length of side of first bending part 2b is half of the length of side of fourth bending part 2 e.

As shown in fig. 5, the X-axis represents frequency (GHz), and the Y-axis represents a suppression value and an echo value (dB). The high-performance low-pass design requirement can realize the requirements of channel echo < -20dB and block rejection < -100dB so as to ensure the transmission of useful signals and the interception of useless signals and harmonic waves. According to the simulation curve, if the low pass is between 0.6GHz and 1.05GHz, the echo reaches-20 dB, and the 4GHz-8GHz band rejection reaches-115 dB, the low pass belongs to a high-performance low pass.

As shown in FIG. 6, under the condition of the same external dimension as the existing low pass, the simulation curve of the low pass is as shown in the figure, the low pass achieves-20 dB at the echo of 0.6GHz-1.05GHz, and the inhibition of 4GHz-8GHz achieves-106 dB. The low-pass filter belongs to a high-performance low-pass design, meets the harmonic requirement of a conventional project, and has performance very close to that of the conventional low-pass filter.

As shown in fig. 7-10, a novel processing technique for punching and rolling a low-pass sheet includes the following steps:

s14: blanking, closing a blanking die, blanking and forming the unfolded size of the plane appearance to obtain a low-pass plate with the unfolded plane appearance;

s21: bending and forming the first bending part 2b and the second bending part 2c through a first bending die;

s22: bending and forming the third bending part 2d through a second bending die;

s23: and bending and forming the fourth bending part 2e through a third bending die to obtain a low-pass finished product.

In the embodiment, the low resistance 2 is designed into the frame structure, so that the material consumption is greatly reduced on the premise of ensuring the performance, and the cost is greatly reduced; the low resistance 2 adopting the frame structure has elasticity, so that the low resistance 2 can be automatically adapted according to the size of the low through groove during assembly, so that the four surfaces of the low pass can be firmly fixed in the low through groove due to the elasticity, the low pass and the low through groove are ensured to be in tight fit, and the consistency of tapping time delay is fundamentally ensured; the low pass and the low pass groove are tightly matched, so that the material cannot shake, and the intermodulation stability is further improved; the low-pass forming is completed by adopting a bending, stamping and rolling process, the process is simple, and the cost is low; the bending forming of the first bending part 2b and the second bending part 2c is completed through one bending die, so that the production efficiency is greatly improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a novel low pass is made in punching press book installs and is used for suppressing the harmonic on filter cavity (4), and it includes high resistance (1), low resistance (2) and assembly end (3) at least, interval arrangement has on high resistance (1) low resistance (2), the both ends of high resistance (1) are equipped with respectively assembly end (3), its characterized in that: the low resistance (2) is of a frame structure, a low through groove (4a) is formed in the filter cavity (4), and the high resistance (1) and the low resistance (2) are arranged in the low through groove (4 a); the low resistance (2) of the frame structure comprises a high resistance connecting part (2a), a first bending part (2b), a second bending part (2c), a third bending part (2d) and a fourth bending part (2e), one end of the high-resistance connecting part (2a) is connected with the high resistance (1), the other end of the high-resistance connecting part (2a) is connected with one end of the first bending part (2b), the other end of the first bending part (2b) is connected with one end of the second bending part (2c), the other end of the second bending part (2c) is connected with one end of the third bending part (2d), the other end of the third bending part (2d) is connected with one end of the fourth bending part (2e), the first bending part (2b), the second bending part (2c), the third bending part (2d) and the fourth bending part (2e) are encircled to form the frame structure.

2. The novel stamped and rolled low pass as claimed in claim 1, wherein: the high resistance (1) is located at the center of the frame structure.

3. The novel stamped and rolled low pass as claimed in claim 1, wherein: the axis of the high resistance (1) is perpendicular to the plane of the low resistance (2) of the frame structure.

4. The novel stamped and rolled low pass as claimed in claim 3, wherein: frame construction is square, high resistant connecting portion (2a) with contained angle between first portion of bending (2b) is 90, first portion of bending (2b) with contained angle between second portion of bending (2c) is 90, second portion of bending (2c) with contained angle between third portion of bending (2d) is 90, third portion of bending (2d) with contained angle between fourth portion of bending (2e) is 90.

5. The novel stamped and rolled low pass as claimed in claim 4, wherein: high resistant connecting portion (2a) with the length of side of first bending (2b) equals, second bending (2c) third bending (2d) with the length of side of fourth bending (2e) equals, just the length of side of first bending (2b) is the half of the length of side of fourth bending (2 e).

6. The novel stamped and rolled low pass as claimed in claim 5, wherein: the filter cavity (4) is internally provided with a common cavity resonator (5) and an antenna port connecting rod (6) corresponding to two ends of the low through groove (4a), the outer wall of the low resistance (2) is abutted to the inner wall of the low through groove (4a), one assembling end (3) is connected with a connecting piece of the common cavity resonator (5), and the other assembling end (3) is connected with the antenna port connecting rod (6).

7. A processing technology for manufacturing the novel punching and rolling low-pass belt of any one of claims 1 to 6 is characterized in that: comprises the following steps

S1: performing a blanking process on the sheet to obtain a low-pass sheet with an unfolded plane shape;

s2: and bending the low-pass plate to obtain a low-pass finished product.

8. The novel processing technology for punching and rolling low-pass beams as claimed in claim 7, is characterized in that: the blanking process is carried out on the plate material to obtain the low-pass plate material with the expanded plane appearance, and the method specifically comprises the following steps:

9. The novel processing technology for punching and rolling low-pass beams as claimed in claim 7, is characterized in that: bending the low-pass plate to obtain a low-pass finished product, which specifically comprises the following steps:

s21: bending and forming of the first bending part (2b) and the second bending part (2c) are completed through a first bending die;

s22: bending and forming the third bending part (2d) through a second bending die;

s23: and bending and forming the fourth bending part (2e) through a third bending die to obtain a low-pass finished product.