CN216264257U - Air tightness laser welding tool for high-frequency assembly of traveling wave tube - Google Patents
Air tightness laser welding tool for high-frequency assembly of traveling wave tube Download PDFInfo
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- CN216264257U CN216264257U CN202122071484.7U CN202122071484U CN216264257U CN 216264257 U CN216264257 U CN 216264257U CN 202122071484 U CN202122071484 U CN 202122071484U CN 216264257 U CN216264257 U CN 216264257U
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Abstract
The utility model provides an air tightness laser welding tool for a high-frequency component of a traveling wave tube, and belongs to the field of laser welding tools. The air tightness laser welding tool for the traveling wave tube high-frequency assembly comprises an upper die and a lower die; the upper die covers the upper end surface of the lower die; the upper die and the lower die are fixed with each other through pins; a square groove is arranged in the upper die, and a V-shaped groove is arranged in the lower die; the square groove of the upper die is matched with the V-shaped groove of the lower die; and a laser welding head is arranged above the upper square groove. According to the air tightness laser welding tool for the traveling wave tube high-frequency assembly, the upper die, the lower die and the pins are matched for use, so that the high-frequency assembly is accurately positioned, and the reliable welding of the high-frequency assembly is met.
Description
Technical Field
The utility model provides an air tightness laser welding tool for a high-frequency component of a traveling wave tube, and belongs to the field of laser welding tools.
Background
The traveling wave tube is a core device which is widely applied to the fields of radar, electronic countermeasure, communication and the like as microwave power amplification at present, and the structure and the size of the traveling wave tube are greatly different due to different specific application backgrounds. With the development of the traveling wave tube towards high frequency band and miniaturization, higher requirements are put forward on the welding quality of the parts. At present, the welding of the traveling wave tube high-frequency assembly generally adopts a high-current resistance welding process, the welding quality, the welding efficiency and the safety have defects, and the molten welding flux flows and disperses inconsistently due to uneven heating of all parts, so that the welding flux filling welding seam is poor in effect, and air leakage occurs in the later exhaust baking and environment test processes.
Through technical research and development of process research, the problem can be well solved by adopting a laser welding gas tightness welding technology, but the problem is solved by the fact that the shape and the size of a high-frequency assembly are extremely irregular, a part to be welded is difficult to be concentric with an equipment rotary table, the welding gas tightness of the assembly cannot meet the product requirement, and a special laser welding tool needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air tightness laser welding tool for a high-frequency assembly of a traveling wave tube aiming at the defects.
The utility model adopts the following technical scheme:
the utility model relates to an air tightness laser welding tool for a traveling wave tube high-frequency assembly, which comprises an upper die and a lower die; the upper die covers the upper end surface of the lower die; the upper die and the lower die are fixed with each other through pins; a square groove is arranged in the upper die, and a V-shaped groove is arranged in the lower die; the square groove of the upper die is matched with the V-shaped groove of the lower die; and a laser welding head is arranged above the upper square groove.
According to the air tightness laser welding tool for the traveling wave tube high-frequency assembly, the lower die is internally and radially positioned through the V-shaped groove.
According to the air tightness laser welding tool for the traveling wave tube high-frequency assembly, the square groove of the upper die realizes axial and circumferential positioning of the assembly.
According to the air tightness laser welding tool for the traveling wave tube high-frequency assembly, the upper die and the lower die are respectively provided with the pin holes which are symmetrically distributed, and the pins penetrate through the pin holes of the upper die and are fixed in the pin holes of the lower die.
Has the advantages that:
according to the air tightness laser welding tool for the traveling wave tube high-frequency assembly, the upper die, the lower die and the pins are matched for use, so that the high-frequency assembly is accurately positioned, and the reliable welding of the high-frequency assembly is met.
According to the air tightness laser welding tool for the traveling wave tube high-frequency assembly, the sizes of the inner hole of the upper die and the V-shaped groove of the lower die are changed, so that radial, axial and circumferential positioning of the assembly is realized, and welding of high-frequency assemblies with different sizes is met.
The air tightness laser welding tool for the traveling wave tube high-frequency assembly provided by the utility model is simple in structure, convenient to clamp, good in engineering application effect and higher in popularization and application value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side sectional view of the present invention.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.
As shown in the figure: the utility model provides an air tightness laser welding tool for a traveling wave tube high-frequency assembly, which comprises an upper die 1 and a lower die 2; the end surfaces of the upper die 1 and the lower die 2 are provided with pin holes which have the same diameter and are symmetrically distributed, and the pin holes are connected through pins 3; through processing symmetrical round pin hole on upper and lower mould to realize accurate clamping under the cooperation of pin 3, guaranteed that laser welding in-process equipment revolving stage and subassembly treat that the welded seam is concentric, solve subassembly postweld standing wave change and the insecure problem of gas tightness, satisfied travelling wave tube engineering welding requirement.
A through hole with a specified size is processed in the central part of the upper die 1 to position the outer diameter of the part to be welded of the high-frequency component, so as to position the axial direction and the circumferential direction of the component; a square groove is processed at the lower part of the upper die 1, and a V-shaped groove is processed on the lower die 2 for the purpose of positioning the radial direction of the assembly; and (3) clamping the excircle of the lower die 2 by three claws on the equipment rotary table during laser welding, so that the concentric welding seam to be welded and the laser welding rotary table are realized.
When the laser welding tool is used, a high-frequency assembly is firstly placed in a V-shaped groove of a lower die 2, an inner hole of an upper die 1 penetrates through the upper end of a high-frequency assembly, then a pin is inserted into pin holes of the upper die 1 and the lower die 2, and finally the whole body is placed on a rotary table of laser welding equipment, and the lower die 2 is clamped by a clamping jaw.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides an air tightness laser welding frock of travelling wave tube high frequency subassembly which characterized in that: comprises an upper die and a lower die; the upper die covers the upper end surface of the lower die; the upper die and the lower die are fixed with each other through pins; a square groove is arranged in the upper die, and a V-shaped groove is arranged in the lower die; the square groove of the upper die is matched with the V-shaped groove of the lower die; and a laser welding head is arranged above the upper square groove.
2. The air-tight laser welding tool for the traveling wave tube high-frequency assembly according to claim 1, characterized in that: and the lower die is internally provided with a V-shaped groove for radially positioning the assembly.
3. The air-tight laser welding tool for the traveling wave tube high-frequency assembly according to claim 1, characterized in that: the square groove of the upper die realizes the axial and circumferential positioning of the components.
4. The air-tight laser welding tool for the traveling wave tube high-frequency assembly according to claim 1, characterized in that: the upper die and the lower die are respectively provided with pin holes which are symmetrically distributed, and pins penetrate through the pin holes of the upper die and are fixed in the pin holes of the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122071484.7U CN216264257U (en) | 2021-08-31 | 2021-08-31 | Air tightness laser welding tool for high-frequency assembly of traveling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122071484.7U CN216264257U (en) | 2021-08-31 | 2021-08-31 | Air tightness laser welding tool for high-frequency assembly of traveling wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216264257U true CN216264257U (en) | 2022-04-12 |
Family
ID=81062523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122071484.7U Active CN216264257U (en) | 2021-08-31 | 2021-08-31 | Air tightness laser welding tool for high-frequency assembly of traveling wave tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216264257U (en) |
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2021
- 2021-08-31 CN CN202122071484.7U patent/CN216264257U/en active Active
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