Machining device for inner molded surfaces of integral spinning hemisphere-like shells

A technology of inner surface and adding devices, which is applied in the direction of positioning devices, metal processing equipment, metal processing machinery parts, etc., can solve the problems of inability to achieve calibration, low processing accuracy, low positioning and clamping accuracy of hemispherical shell heads, etc. problems, to achieve the effect of ensuring product processing quality and processing accuracy stability, improving machining efficiency, and fast product fixing and clamping process

CN112405044AActive Publication Date: 2021-02-26CAPITAL AEROSPACE MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-02-26

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Abstract

The invention relates to the technical field of precision machining of inner molded surfaces of integral spinning-formed hemisphere-like shells, in particular to a machining device for inner molded surfaces of integral spinning hemisphere-like shells. The machining device comprises a flexible supporting mechanism, a vice clamping and shape correcting mechanism, an upper pressing plate assembly anda bottom pressing plate assembly; the flexible supporting mechanism comprises a tool base; a groove used for containing the hemisphere-like shell is formed in the tool base in a concave mode; the vice clamping and shape correcting mechanism comprises a plurality of clamping and shape correcting assemblies; the upper pressing plate assembly comprises a plurality of upper pressing plate units; allthe upper pressing plate units and the clamping and shape correcting assemblies are distributed around the end surface of the tool base in a staggered mode in the circumferential direction; the bottompressing plate assembly comprises a vertical base in the center of the bottom of the groove; and a bottom pressing plate is installed on the vertical base in a threaded mode. According to the machining device, end sockets of the hemisphere-like shells are integrally and accurately positioned and clamped, inner molded surface machining is finally completed, the hemisphere-like shell end socket machining efficiency is improved, and integral batch manufacturing of the end sockets of the hemisphere-like shells is achieved.
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Description

technical field

[0001] The invention relates to the technical field of precision machining of the inner profile of a hemispherical shell formed by integral spinning, in particular to a machining device for the inner profile of an integral spinning hemispherical shell. Background technique

[0002] The hemispherical shell refers to the profile whose generatrix equation is a circle, ellipse or other circle-like curve rotating around the central axis. At present, the integral spinning-formed hemispherical shell head is widely used in pressure vessels, aerospace and other fields, and has significant advantages. Especially in the field of aerospace, the heads of medium and large-diameter hemispherical shells are usually manufactured by the method of separate forming of parts and then integral tailor welding, which has many welding seams, many intermediate processing steps, long process, low overall manufacturing efficiency, and lack of Interchangeability and other issues. The h...

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing and embodiment of description, specific embodiment of the present invention is described in further detail:

[0036] refer to Figure 4 to Figure 11 The shown integral spinning type hemispherical shell internal surface machining device includes a flexible supporting mechanism 1, a vise clamping and correcting mechanism 2, an upper pressing plate assembly 3 and a bottom pressing plate assembly 4, and the flexible supporting mechanism 1 Including a tooling base 11, the tooling base 11 is concaved with a groove for accommodating a hemispherical shell, and the vise clamping and correcting mechanism 2 includes several fixedly mounted The clamping correction assembly on the top of the tooling base 11, the upper pressing plate assembly 3 includes several upper pressing plate units fixedly installed on the top of the tooling base 11 with equiangular differences around the circumferential direction of the groove end surface, all the...