A solid rocket motor casing welding tool with embedded end cover
A technology for engine casings and solid rockets, applied in welding equipment, manufacturing tools, metal processing equipment, etc., can solve the problem of tooling and casing length exceeding the weldable length, etc., to achieve shortened length, compact space structure, and improved utilization. Effect
Active Publication Date: 2022-03-04
SHANGHAI XINLI POWER EQUIP RES INST
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Problems solved by technology
[0004] The technical problem of the present invention is to overcome the deficiencies of the prior art, and provide a solid rocket motor shell assembly welding tool with an embedded end cover, which solves the problem that the existing shell assembly welder is equipped with when the shell is assembled and welded. The body length exceeds the limit of the weldable length of the electron gun in the vacuum chamber
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[0038] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments disclosed in the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0039] Such as figure 1 , in this embodiment, the solid rocket motor shell assembly welding tool for the embedded end cover includes: nut 2, washer I3, front end cover 4, washer II8, embedded rear end cover 9, special-shaped nut 10 and splicing core rod components. Among them, the front end cover 4 is fixed on one end of the splicing mandrel assembly through the nut 2 and the washer I3; the embedded rear end cover 9 is fixed on the other end of the splicing mandrel assembly through the special-shaped nut 10 and the washer II8; the front end cover 4 and the embedded rear The end cap 9 is used to clamp and fix the shell assembly of the workpiece, and the splicing mandrel assembly passes through the middle of the workpiece.
[0040] Pre...
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Abstract
The invention discloses a solid rocket motor shell assembly welding tool with an embedded end cover, comprising: a nut, a washer I, a front end cover, a washer II, an embedded rear end cover, a special-shaped nut and a spliced mandrel assembly; the front end cover passes through The nut and washer I are fixed at one end of the spliced mandrel assembly; the embedded rear end cover is fixed at the other end of the spliced mandrel assembly through a special-shaped nut and washer II; the front end cover and the embedded rear end cover are used to clamp and fix the workpiece The shell assembly and the spliced mandrel assembly pass through the middle of the workpiece. The invention solves the problems of space limitation of the electron beam welding vacuum chamber, conflict between the limit distance from the electron gun to the vacuum chamber and the position of the welding seam, and clamping interference during assembly welding of the shell with a large aspect ratio, and improves the interchangeability of the tooling. , the space on the length of the electron beam welding vacuum chamber is effectively used, and the assembly welding of the shell with a large aspect ratio is successfully completed.
Description
technical field [0001] The invention belongs to the technical field of butt joint welding of solid rocket motor casings, and in particular relates to a solid rocket motor casing welding assembly tool with an embedded end cover. Background technique [0002] The shell of solid rocket motor is assembled and welded by multiple spinning shells and machined parts, so welding is one of the essential key processes in the production process of solid rocket motor. [0003] At present, the butt ring weld of the shell is formed by vacuum electron beam welding. The overall price of vacuum electron beam welding machine is affected by the size of its vacuum chamber, which to a certain extent restricts the specifications of its machinable workpieces. In the commonly used shell assembly welding tool, one end of the mandrel is fixed on the three-jaw chuck, and the other end is fixed by the tail top. The shell assembly of the workpiece rotates with the chuck during welding. The shell assembl...
Claims
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IPC IPC(8): B23K15/06
CPCB23K15/06
Inventor 夏灵潘丽华孙建英蒋付雯李睿沈慧萍钟茵赵亦东王朝晖徐雪生
Owner SHANGHAI XINLI POWER EQUIP RES INST