CN107175277B - Method for processing meter wave antenna surface - Google Patents

Method for processing meter wave antenna surface Download PDF

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Publication number
CN107175277B
CN107175277B CN201610140442.5A CN201610140442A CN107175277B CN 107175277 B CN107175277 B CN 107175277B CN 201610140442 A CN201610140442 A CN 201610140442A CN 107175277 B CN107175277 B CN 107175277B
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bent
meter
wave antenna
bending
blank
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CN107175277A (en
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不公告发明人
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Kuang-Chi Institute of Advanced Technology
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Kuang-Chi Institute of Advanced Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • B21D19/08Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws

Abstract

The invention provides a processing method of a meter-wave antenna surface, which comprises the following steps: step 1: and (3) bending the part (1) to be bent in the meter-wave antenna surface blank (2) at least twice by using a numerical control bending machine until the meter-wave antenna surface is formed. The invention aims to provide a processing method of a meter-wave antenna surface, which is used for avoiding cracks at the bending part of the meter-wave antenna surface.

Description

Method for processing meter wave antenna surface
Technical Field
The invention relates to the field of meter wave antennas, in particular to a method for processing a meter wave antenna surface.
Background
The application environment of the meter wave antenna is at seaside, the corrosivity is strong, and the wind power is large, so that the 5A06 aluminum alloy with high strength and corrosion resistance is selected as the antenna surface during design. The 5A06 aluminum alloy has the features of high strength, high fatigue resistance, high welding performance and high sheet metal performance. The antenna surface has a structural shape shown in fig. 1, and the outer ring has 5 bends, and the inner ring has 8 bends.
The common process method is to select a compression molding mode: 1. the forming die is fixed on the punch workbench; 2. installing a positioning baffle on the workbench; 3. selecting a punch press of 200 tons; 4. installing a sliding block on a working part of the punch press, wherein the distance between the sliding block and a forming die is just 2mm of the thickness of a plate; 5. setting the stroke frequency of the slide block to be 50-200 times/minute, and setting an upper dead point and a lower dead point of the slide block; 6. and placing the prepared plate in place according to the positioning baffle, stamping the antenna surface by stepping on the foot switch, and performing one-time stamping forming on the bent edge of the antenna surface.
However, the common process method has great disadvantages, because the sheet metal performance of the 5A06 aluminum alloy is general, the bending radius r of the bending edge is 0, the plate thickness d is 2mm, and the ratio of r/d is 0, the strain of the metal on the outer side of the plate is large, and the bent outer circular corner is easy to crack, thereby causing the part to be scrapped.
Disclosure of Invention
Aiming at the problems in the related art, the invention aims to provide a processing method of a meter-wave antenna surface so as to avoid cracks at the bending part of the meter-wave antenna surface.
In order to achieve the purpose, the invention provides a processing method of a meter wave antenna surface, which comprises the following steps: step 1: and (3) bending the part to be bent in the meter-wave antenna surface blank at least twice by using a numerical control bending machine until the meter-wave antenna surface is molded.
According to one embodiment of the invention, the meter-wave antenna face blank is an annular structure, and the part to be bent comprises at least one first section to be bent located at the outer edge of the annular structure and at least one second section to be bent located at the inner edge of the annular structure.
According to an embodiment of the present invention, step 1 further comprises: and at least twice bending operation is carried out on each section to be bent in the first section to be bent and the second section to be bent.
According to an embodiment of the present invention, step 1 further comprises: substep 1: firstly, bending each second section to be bent; and substep 2: and then bending each first section to be bent.
According to an embodiment of the invention, in the substep 1, all the second sections to be bent are bent according to the order of increasing sizes; in the substep 2, all the first sections to be bent are bent according to the order of increasing sizes in sequence.
According to one embodiment of the invention, at least two bending operations are carried out on the part to be bent in the meter-wave antenna face blank, so that the part to be bent is bent by 90 degrees.
According to one embodiment of the invention, 10-23 bending operations are carried out on the part to be bent in the meter-wave antenna face blank until the meter-wave antenna face is formed.
According to one embodiment of the invention, the meter wave antenna face blank is made of 5A06 aluminum alloy material.
According to one embodiment of the invention, the meter-wave antenna face blank is a plate, and the thickness of the plate is in the range of 1-3 mm.
According to one embodiment of the invention the plate member has a thickness of 2 mm.
The invention has the beneficial technical effects that: compared with the traditional processing method for performing one-time punch forming on the bending part of the meter-wave antenna surface blank, the processing method for performing multiple bending operations can avoid cracks at the bending part of the antenna surface so as to prevent parts from being scrapped.
Drawings
FIG. 1 shows a schematic diagram of a meter wave antenna face blank according to one embodiment of the invention; and
fig. 2 is a schematic diagram of the bending process performed on the meter-wave antenna face blank in fig. 1.
Detailed Description
The invention will now be further described with reference to specific embodiments.
In one embodiment according to the invention, a numerical control bending machine is adopted to perform bending operation on the part 1 to be bent in the meter-wave antenna face blank 2 at least twice until the meter-wave antenna face is formed.
Specifically, one embodiment, as shown in fig. 1, shows a schematic view of a meter wave antenna face blank. As shown, the meter-wave antenna panel blank 2 is a ring-shaped structure and includes a portion 1 to be bent at the edge of the ring-shaped structure. The part to be bent 1 comprises a first section to be bent 12 located at the outer edge of the annular structure and a second section to be bent 14 located at the inner edge of the annular structure. It should be noted here that although fig. 1 shows that the meter-wave antenna face blank 2 has 5 first sections to be bent 12 and 8 second sections to be bent 14, the meter-wave antenna face blank having no less than 1 first section to be bent and no less than 1 second section to be bent is suitable for the processing method of the present invention as long as it meets the specific application and processing requirements, and the present invention is not limited thereto.
In the embodiment illustrated in fig. 1, at least two bending operations are performed on each of the first to-be-bent segment 12 and the second to-be-bent segment 14 until the to-be-bent segment is formed, and the meter-wave antenna surface 3 after final forming is as shown in fig. 2. Fig. 2 also shows a first bending segment 12 'after the first segment 12 to be bent is formed, and a second bending segment 14' after the second segment 14 to be bent is formed.
It should be understood here that all the sections to be bent or a part of the sections to be bent in the portion to be bent 1 can be simultaneously treated to perform at least two bending operations, or a part of the sections to be bent in the portion to be bent 1 can be respectively treated to perform at least two bending operations, but it must be satisfied that each section to be bent in the portion to be bent 1 is at least twice bent.
However, it should be noted that when the inner and outer edges of the meter-wave antenna surface blank have the requirement for bending, the bending operation is performed on the to-be-bent segment at the inner edge first, and then the bending operation is performed on the to-be-bent segment at the outer edge, so as to reduce the possibility of cracks in the bent portion due to the bending stress. In the embodiment illustrated in fig. 1, the bending operation should be performed on each second segment to be bent 14 first, and then on each first segment to be bent 12.
On the other hand, it is worth noting that when a plurality of sections to be bent in the portion 1 to be bent of the meter-wave antenna face blank 2 have different sizes, all the sections to be bent should be bent in an order of increasing sizes. It is to be noted that, in this document, the size of the segment to be bent refers to the depth of the segment to be bent and/or the length of the segment to be bent extending along the plane of the meter-wave antenna in the transverse direction.
In a word, when bending the portion 1 to be bent of the meter-wave antenna surface blank 2, processing operation should be performed according to the principle that the inner edge is bent first and then the outer edge is bent, and the small size is bent first and then the large size is bent, so as to further reduce the possibility that the bent portion cracks due to bending stress.
For example, in the embodiment shown in fig. 1, all the second sections 14 to be bent are bent first in the order of increasing size; and then bending all the first sections to be bent 12 according to the sequence of increasing sizes.
In the embodiment shown in fig. 1, at least two bending operations are performed on the portion to be bent 1 in the meter-wave antenna face blank 2, for example, in this embodiment, 10 to 23 bending operations may be performed on the portion to be bent 1 in the meter-wave antenna face blank 2, so that the portion to be bent 1 is bent by 90 degrees until the meter-wave antenna face is formed.
In this embodiment, the meter-wave antenna panel blank 2 is made of 5a06 aluminum alloy material and is of an annular plate structure, and the thickness thereof is in the range of 1-3 mm. Preferably, a 5a06 aluminum alloy sheet having a thickness of 2mm is selected.
It should be noted here that in addition to the materials, shape structures, and thicknesses exemplified above, other materials, shapes, structures, and thicknesses of the meter-wave antenna face blank are also equally applicable to the present invention, as long as they meet the application and processing requirements, and the present invention is not limited thereto.
The following specifically illustrates a process of bending the meter-wave antenna surface according to the method for processing the meter-wave antenna surface of the present invention. In the embodiment, the meter-wave antenna panel blank is made of 5A06 aluminum alloy plate, the wall thickness is 2mm, and the state is H112. First, the tonnage of the numerical control bending machine is selected, and in this embodiment, the tonnage of the numerical control bending machine is selected to be 200T. And then, setting the width of a V-shaped groove of a lower die of the numerical control bending machine to be 10-20mm according to the thickness of a plate material of the meter wave antenna surface blank to be 2 mm. According to the length of the edge of bending at each time, the length of the upper film is reasonably set. When the length of the upper film is set, the length of the upper film is ensured to be not less than the bending length. And then calculating the distance between the rear baffle and the upper film according to the drawing size of the meter wave antenna surface, wherein the distance is calculated to be 5-15mm in the embodiment, and the distance is set on a numerical control bending machine. And then calculating the position of an upper dead point according to the thickness of the plate material of the meter-wave antenna surface blank being 2mm and the size of the lower die, and setting the position on a numerical control bending machine to ensure that the closest distance between the upper film and the lower die is just the thickness of the plate material of the meter-wave antenna surface blank, namely 2 mm. The bending angle is set according to the bending requirement, and in this embodiment, the bending angle is set to 90 degrees. And then sequentially bending the bending parts of the meter-wave antenna surface according to the principle of first inward and then outward and first small and then big. The bending part of the meter wave antenna surface processed by the steps has no crack.
Compared with the traditional processing method for performing one-time punch forming on the bending part of the meter-wave antenna surface blank, the processing method for performing multiple bending operations can avoid cracks at the bending part of the antenna surface so as to prevent parts from being scrapped.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A processing method of a meter-wave antenna surface is characterized by comprising the following steps:
step 1: bending a part (1) to be bent in the meter-wave antenna surface blank (2) at least twice by using a numerical control bending machine until the meter-wave antenna surface is formed;
the meter-wave antenna face blank (2) is of an annular structure, and the part (1) to be bent comprises at least one first section (12) to be bent and at least one second section (14) to be bent, wherein the first section is located at the outer edge of the annular structure;
bending at least twice each of the first section to be bent (12) at the outer edge of the annular structure and the second section to be bent (14) at the inner edge of the annular structure;
wherein, step 1 still includes: the method comprises the steps of setting the width of a lower die V groove of a numerical control bending machine according to the thickness of a plate material of a meter-wave antenna surface blank (2), carrying out bending operation on a portion (1) to be bent in the meter-wave antenna surface blank (2) at least twice through the lower die V groove, enabling the portion (1) to be bent and the meter-wave antenna surface blank (2) to form a 90-degree bending angle, and enabling the meter-wave antenna surface blank (2) to be made of 5A06 aluminum alloy materials.
2. The process of claim 1, wherein said step 1 further comprises:
substep 1: firstly, bending each second section (14) to be bent; and
substep 2: and then bending each first section (12) to be bent.
3. The processing method according to claim 2,
in the substep 1, bending all the second sections to be bent (14) according to the sequence of sequentially increasing sizes;
in the substep 2, all the first sections to be bent (12) are bent according to the order of increasing sizes.
4. The processing method according to claim 1,
and (3) bending the part (1) to be bent in the meter-wave antenna surface blank (2) for 10-23 times until the meter-wave antenna surface is formed.
5. The processing method according to claim 1,
the meter-wave antenna face blank (2) is a plate, and the thickness of the plate is in the range of 1-3 mm.
6. The processing method according to claim 5,
the thickness of the plate is 2 mm.
CN201610140442.5A 2016-03-11 2016-03-11 Method for processing meter wave antenna surface Active CN107175277B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610140442.5A CN107175277B (en) 2016-03-11 2016-03-11 Method for processing meter wave antenna surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610140442.5A CN107175277B (en) 2016-03-11 2016-03-11 Method for processing meter wave antenna surface

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CN107175277A CN107175277A (en) 2017-09-19
CN107175277B true CN107175277B (en) 2020-11-03

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2475157Y (en) * 2001-02-27 2002-01-30 北京金相位无线电设备有限公司 Metric wave aerial
EP2366844A1 (en) * 2010-03-10 2011-09-21 FAKRO PP Spolka z o.o. Flashing cover with at least one internal corner and method of manufacturing thereof
CN103286170A (en) * 2013-06-14 2013-09-11 宜昌船舶柴油机有限公司 Super-long double-U-shaped guide rail manufacturing method
CN104084458A (en) * 2014-06-26 2014-10-08 梧州恒声电子科技有限公司 Multi-bending technology for basin stand products
CN104259377A (en) * 2014-09-10 2015-01-07 杭州东华链条集团有限公司 Chain, chain transition chain plate and automatic chain transition chain plate integration punch forming technology
CN104588458A (en) * 2014-12-26 2015-05-06 西安轨道交通装备有限责任公司 Method for manufacturing swash plate of oil tank truck in pressing mode
CN105170729A (en) * 2015-09-21 2015-12-23 中铁一局集团有限公司 Curve shape pre-bending construction method for channel rail of tramcar

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2475157Y (en) * 2001-02-27 2002-01-30 北京金相位无线电设备有限公司 Metric wave aerial
EP2366844A1 (en) * 2010-03-10 2011-09-21 FAKRO PP Spolka z o.o. Flashing cover with at least one internal corner and method of manufacturing thereof
CN103286170A (en) * 2013-06-14 2013-09-11 宜昌船舶柴油机有限公司 Super-long double-U-shaped guide rail manufacturing method
CN104084458A (en) * 2014-06-26 2014-10-08 梧州恒声电子科技有限公司 Multi-bending technology for basin stand products
CN104259377A (en) * 2014-09-10 2015-01-07 杭州东华链条集团有限公司 Chain, chain transition chain plate and automatic chain transition chain plate integration punch forming technology
CN104588458A (en) * 2014-12-26 2015-05-06 西安轨道交通装备有限责任公司 Method for manufacturing swash plate of oil tank truck in pressing mode
CN105170729A (en) * 2015-09-21 2015-12-23 中铁一局集团有限公司 Curve shape pre-bending construction method for channel rail of tramcar

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