CN-121972911-A - Manufacturing method of large-scale guidance cabin vibration screening test device

Abstract

The invention discloses a manufacturing method of a vibration screening test device for a large-scale guidance cabin, and belongs to the technical field of spacecraft environment tests. The test device comprises a frame body, a bottom plate, an auxiliary support and a cabin body connecting disc. The manufacturing method of the test device comprises the steps of dividing a plurality of aluminum plates into a horizontal aluminum plate and a vertical aluminum plate according to the design, processing the horizontal aluminum plate and the vertical aluminum plate into a shape with gaps, splicing the horizontal aluminum plate and the vertical aluminum plate into a whole along the gaps to form a frame body, welding the joint of the plates in the spliced frame body, welding a bottom plate and an auxiliary support to the edge position of the frame body, and welding a cabin connecting disc to the surface of the frame body. The bottom plate and the auxiliary support are combined into a frame structure, and the joint is welded and fixed. The actual vibration test strength can reach 0.06g 2 /Hz, the same effect as that of casting molding is achieved, and the processing cost is only half of that of casting molding. The problems of insufficient welding strength and high overall cast aluminum casting molding cost in the traditional process can be effectively solved.

Inventors

• WANG LU
• ZHANG WENJING
• DONG WEIFENG
• HAN LISHENG
• ZHAO YI

Assignees

• 河南北方红阳机电有限公司

Dates

Publication Date

20260505

Application Date

20250723

Claims (4)

1. 1. The manufacturing method of the large-scale guidance cabin vibration screening test device comprises a frame body, a bottom plate, an auxiliary support and a cabin body connecting disc, and is characterized by comprising the following steps of: (1) Dividing a plurality of aluminum plates into a horizontal aluminum plate and a vertical aluminum plate according to the design, and processing the horizontal aluminum plate and the vertical aluminum plate into a shape with a notch; (2) Splicing a plurality of horizontal aluminum plates and vertical aluminum plates into a whole along the notch to form a frame body; (3) Welding the joint of the plates in the spliced frame body; (4) Welding the bottom plate and the auxiliary support to the edge position of the frame body; (5) And welding the cabin connecting disc to the surface of the frame body.
2. 2. The method for manufacturing a vibration screening test device for large guided cabins according to claim 1, wherein the bottom plate is formed by welding two mutually perpendicular aluminum plates.
3. 3. The method for manufacturing the vibration screening test device for the large-scale guidance cabin according to claim 2, wherein the auxiliary supports are composed of four triangular aluminum plates in pairs.
4. 4. A method of manufacturing a vibration screening test apparatus for large guided vehicle according to claim 3, wherein the base plate and the auxiliary support are combined into a frame structure, and the joint is welded and fixed.

Description

Manufacturing method of large-scale guidance cabin vibration screening test device Technical Field The invention belongs to the technical field of spacecraft environment tests, and particularly relates to a manufacturing method of a large-scale guidance cabin vibration screening test device. Background The large-scale guidance cabin is used as a key component of a spacecraft, has a complex structure, is large in size and weight, and can bear complex vibration environments in the transportation, launching and flight processes. In order to ensure its reliability, it is necessary to conduct a sufficient vibration screening test at the development stage to expose potential defects and improve the reliability of the product. The vibration screening device is used for fixing the large-scale guidance cabin on the vibration table, vibrating at the same frequency as the vibration table and keeping the large-scale guidance cabin from being damaged. The traditional vibration screening device is manufactured under the influence of the shape and the weight of the guided cabin section, and is generally formed by welding aluminum plates and integrally cast aluminum. The vibration screening device for the welding formation of the aluminum plate generally adopts splicing welding, the welding strength is not high as that of the aluminum plate, and in the large vibration magnitude test process, the welding part is easy to fail and break, so that test failure is caused, and even the guidance cabin section is damaged. While the vibration screening device for integrally cast aluminum casting molding can effectively avoid the situation, the problem of higher processing cost exists. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides a manufacturing method of a vibration screening test device for a large-scale guidance cabin section, which can effectively solve the problems of insufficient welding strength or higher overall cast aluminum casting process cost in a plate welding forming process. In order to achieve the above purpose, the invention adopts the following technical scheme: The manufacturing method of the vibration screening test device for the large-scale guidance cabin section comprises a frame body, a bottom plate, an auxiliary support and a cabin body connecting disc, and comprises the following steps: (1) Dividing a plurality of aluminum plates into a horizontal aluminum plate and a vertical aluminum plate according to the design, and processing the horizontal aluminum plate and the vertical aluminum plate into a shape with a notch; (2) Splicing a plurality of horizontal aluminum plates and vertical aluminum plates into a whole along the notch to form a frame body; (3) Welding the joint of the plates in the spliced frame body; (4) Welding the bottom plate and the auxiliary support to the edge position of the frame body; (5) And welding the cabin connecting disc to the surface of the frame body. Furthermore, the bottom plate is formed by welding two mutually perpendicular aluminum plates. The auxiliary support is composed of four triangular aluminum plates in pairs. The bottom plate and the auxiliary support are combined into a frame structure, and the joint is welded and fixed. Compared with the prior art, the method has the beneficial effects that after the method is adopted, the actual vibration test strength can reach 0.06g 2/Hz, the effect same as that of casting molding is achieved, the mold cost of casting molding is reduced, a large number of aluminum plates existing in the market can be utilized, the price is lower, the purchasing period is shorter, the welding molding can be applied to the vibration test in a short period, and the processing cost is only half of that of casting molding. The problem that the welding strength is insufficient and the overall cast aluminum casting molding cost is high in the welding molding of the plates of the large-scale guidance cabin vibration test device can be effectively solved. Drawings FIG. 1 is a schematic diagram of a vibration screening test apparatus for a large guidance cabin according to the present invention; FIG. 2 is a schematic view of a processed transverse aluminum plate in accordance with the present invention; FIG. 3 is a schematic view of the process of the present invention for producing a vertical aluminum plate; FIG. 4 is a schematic view of the splicing of the frame body according to the present invention; FIG. 5 is a schematic view of the welding of the joints of the sheet material of the present invention; FIG. 6 is a schematic view of the welding of the base plate and auxiliary support of the present invention; Fig. 7 is a schematic diagram of the welding of the cabin connecting disc. Detailed Description The technical scheme of the invention is clearly and completely described below with reference to the accompanying drawings and the specific embodiments. Referring to fig. 1-7, a method of manufacturi