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Processing method of flexible nozzle thin-wall dual-spherical reinforcing part and device thereof

A flexible nozzle and processing method technology, which is applied in positioning devices, metal processing equipment, metal processing machinery parts, etc., can solve the problems of poor surface roughness, large vibration of parts, large deformation of parts, etc., and achieves high processing accuracy and saving. Raw materials, the effect of improving machining accuracy

Active Publication Date: 2012-08-08
湖北三江航天江北机械工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of this process are that the parts vibrate greatly during processing, the surface roughness is poor, and the dimensional accuracy is poor. After cutting off the process chuck, the parts deform greatly, and a lot of materials are wasted.

Method used

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  • Processing method of flexible nozzle thin-wall dual-spherical reinforcing part and device thereof
  • Processing method of flexible nozzle thin-wall dual-spherical reinforcing part and device thereof
  • Processing method of flexible nozzle thin-wall dual-spherical reinforcing part and device thereof

Examples

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Effect test

Embodiment 1

[0048] For a flexible nozzle reinforcement, the size of the inner arc is SR159.15mm, the size of the outer arc is SR161.75mm, the wall thickness is 2.6mm, the material is 30CrMnSiA high-strength steel, the tensile strength after quenching and tempering is 1000MPa, the processing control The process is as follows:

[0049] 1) Forging blank preparation: according to figure 1 The maximum external dimension of the final product flexible nozzle thin-walled double-spherical reinforcement 1 is shown, with a machining allowance of 5 mm on one side, and a ring forging blank 2 is prepared by a conventional forging process. Its external structure is as follows figure 2 shown;

[0050] 2) Rough turning: use the lathe chuck to clamp the outer circle d1 surface of the ring forging blank 2, and remove the surface defects and most of the machining allowance of the ring forging blank 2 by turning, so as to ensure the hardenability and mechanical processing of the subsequent quenching and tem...

Embodiment 2

[0059] For a flexible nozzle reinforcement, the size of the inner arc is SR179.15mm, the size of the outer arc is SR181.75mm, the wall thickness is 2.6mm, the material is 30CrMnSiA high-strength steel, the tensile strength after quenching and tempering is 1100MPa, the processing control The process is as follows:

[0060] 1) Forging blank preparation: according to figure 1 The maximum external dimension of the final product flexible nozzle thin-walled double-spherical reinforced part 1 is shown, with a machining allowance of 10 mm on one side, and a ring forging blank 2 is prepared by a conventional forging process, and its external structure is as follows figure 2 shown;

[0061] 2) Rough turning: use the lathe chuck to clamp the outer circle d1 surface of the ring forging blank 2, and remove the surface defects and most of the machining allowance of the ring forging blank 2 by turning, so as to ensure the hardenability and mechanical processing of the subsequent quenching ...

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Abstract

The invention discloses a processing method of a flexible nozzle thin-wall dual-spherical reinforcing part and a device thereof. The processing method comprises the following steps of: 1, preparing a forging blank; 2, carrying out rough turning; 3, carrying out quenching and tempering; 4, carrying out half finish turning on an inner spherical surface; 5, carrying out destressing and tempering; 6, carrying out turning reference; 7, carrying out finish turning on the inner spherical surface; and 8, carrying out finish turning on an outer spherical surface. The device for implementing the processing method comprises a special inner spherical surface fixture and a special outer spherical fixture. According to the invention, the thin-wall dual-spherical reinforcing part is processed by adopting a special tool and a special clamping and aligning method; the processing accuracy is high; the form and position tolerance totally meets the requirement of a product on the design accuracy. The product prepared by the method provided by the invention achieve complete success by repeated ground test examination. The processing method provided by the invention not only can be used for processing the thin-wall dual-spherical reinforcing part, but also can be used for carrying out processing and controlling on other like thin-wall spherical products.

Description

technical field [0001] The invention relates to a processing method for a flexible nozzle reinforcement of a solid rocket motor, in particular to a processing method and a device for a thin-walled double-spherical reinforcement of a flexible nozzle. Background technique [0002] The solid rocket motor is the power device of the aerospace vehicle, which is composed of a charge combustion chamber, a nozzle and an ignition device. The flexible nozzle is a kind of movable nozzle commonly used in the nozzle of solid rocket motor. [0003] The flexible nozzle is a key part of the solid rocket motor, which is composed of three major parts: the movable body, the fixed body and the flexible joint. The executive part of the nozzle swing is a flexible joint, and the nozzle swing is implemented by means of the flexible joint to achieve the purpose of thrust vector adjustment. It has a series of advantages such as stable performance, reliable sealing, and submersion. [0004] The flexi...

Claims

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Application Information

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IPC IPC(8): B23P15/00B23Q3/00
Inventor 潘妮余天雄晏述亮韩庆波闫敏胡稳淼
Owner 湖北三江航天江北机械工程有限公司
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