Device for machining oppositely-opened and attached surfaces of aero-engine external culvert casing
A technology for aero-engines and bonding surfaces, which is applied to metal processing equipment, workpieces, manufacturing tools, etc., can solve the problems of low processing efficiency and high processing cost, and achieve the effects of improving processing efficiency, reducing production costs, and increasing practical value
Active Publication Date: 2018-02-02
AECC AERO SCI & TECH CO LTD
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Problems solved by technology
Adopting the tooling device of the prior art to process the longitudinal mounting edge abutment surfaces of two semicircular casings, since each program link in the processing process of the two semicircular casings is carried out twice, the processing efficiency is relatively low, and the processing cost is relatively low. high
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Embodiment
[0024] The device described in this embodiment is used for processing the split joint surface of the outer cover casing of the aero-engine, and its structure is as attached Figure 1-7As shown, there is a margin of 3 mm on the joint surface of the longitudinal installation side of the aero-engine casing to be processed, and the composition of the device includes a bottom plate 1 designed with a weight-reducing hole on the installation side of the large end of the casing for supporting and positioning. 1. The cover plate 2 for pressing and positioning the small end of the casing to install the side spoke structure, the central connecting column 3 that connects the bottom plate and the cover plate in a non-rotatable manner, and is arranged on the bottom plate for connecting the casing The outer ring surface of the large end installation edge is attached to the eight sets of first pressing components on the inner ring surface of the semi-circular ring seam of the bottom plate, whi...
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The invention provides a device for machining oppositely-opened and attached surfaces of an aero-engine external culvert casing. According to the structure, The device comprises a bottom plate used for supporting the big end mounting edge of the positioning casing, a cover plate used for pressing the small end mounting edge of the positioning casing, a middle connecting column used for connectingthe bottom plate with the cover plate in a non-relatively-rotating mode, a first abutting assembly arranged on the bottom plate and used for attaching the annular surface of the big end mounting edgeof the casing to the annular surface of a positioning stopping opening of the bottom plate, a supporting and strengthening assembly used for supporting and strengthening the middle annular direction mounting edge of the casing, a first pressing and fixing assembly used for pressing and fixing the end surface of big end mounting edge of the casing on the bottom plate, a second abutting assembly arranged on the cover plate and used for attaching the annular surface of the small end mounting edge of the casing to the annular surface of a positioning stopping opening of the cover plate and a second pressing and fixing assembly used for pressing and fixing the end surface of the small end mounting edge of the casing to the cover plate. By means of the device for machining the oppositely-openedand attached surfaces of the aero-engine external culvert casing, the oppositely-opened and attached surfaces of the casing are machined, the processing efficiency can be increased by about 60%, and the processing cost is reduced greatly.
Description
technical field [0001] The invention relates to the field of processing and manufacturing of aero-engine components, in particular to a tooling device used for processing the mounting edge of a thin-wall split sheet-welded outer culvert casing. Background technique [0002] A certain type of aero-engine external casing (hereinafter referred to as the casing) is a split structure, and two split semicircular casings are connected by bolts to form a standard rotary casing. Its structure is very complex, consisting of two end face mounting edges, 4 intermediate circumferential mounting edges, 5 sections of outer cover cylinder, 4 longitudinal mounting edges and 15 mounting seats, which are formed by argon arc welding. The welds covered on the casing are: 10 circular welds, 4 longitudinal welds, and 15 circular welds of the mounting seat. There is a lot of welding stress in the formed casing body. The volume of the casing is very large, but the wall thickness of the outer cover...
Claims
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IPC IPC(8): B23C3/00
CPCB23C3/00B23C2215/04
Inventor 张晓华李福英唐保
Owner AECC AERO SCI & TECH CO LTD