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Processing and bonding method of airborne rocket shell slideway

A rocket shell and bonding method technology, applied in the direction of connecting components, mechanical equipment, material gluing, etc., can solve the problems of high processing efficiency, low manufacturing cost, large quantity, etc., and achieve high bonding shear strength, high viscosity The effect of high bonding efficiency and high bonding accuracy

Active Publication Date: 2020-09-11
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

In the early stage of development, the commonly used epoxy adhesive and the ordinary clamping method of separating the front and rear slideways were used. The maximum bonding shear strength is only 26MPa, and the dimensional error after bonding and curing is greater than 0.2mm. Traditional processing and bonding methods are used. It is difficult to meet the new requirements of high bonding strength, high dimensional accuracy, large quantity, high processing efficiency and low manufacturing cost for airborne small rocket shells.

Method used

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  • Processing and bonding method of airborne rocket shell slideway
  • Processing and bonding method of airborne rocket shell slideway
  • Processing and bonding method of airborne rocket shell slideway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] For a certain type of 30CrMnSiA low-alloy high-strength steel small shell, its outer diameter is 140mm, the shell length is 550mm, the distance L1 between the bottom of a pair of front slideway body guide grooves is 26mm, and the pair of rear slideway body guides The distance L2 between the groove bottoms is 62mm, the guide groove width L3 of the slideway body is 7mm, the groove width L4 of the slideway is 5mm, the center distance L5 from the front slideway body to the rear slideway body is 360mm, and the slideway body Length L6 is 50mm, and the processing and bonding method of airborne rocket shell slideway of the present invention are as follows:

[0069] 1) Processing of a pair of front slideway bodies and a pair of rear slideway bodies

[0070] The groove width of a pair of front slideway bodies and a pair of rear slideway body guide grooves is the same as L3, and the machining accuracy and deviation of L3 are L3(0, +0.02mm);

[0071] Machining of a pair of front c...

Embodiment 2

[0089] For a certain type of 30CrMnSiA low-alloy high-strength steel small shell, its outer diameter is 180mm, shell length is 850mm, the distance L1 between the bottom of a pair of front slideway body guide grooves is 36mm, and a pair of rear slideway body guides The distance L2 between the groove bottoms is 72mm, the guide groove width L3 of the slideway body is 9mm, the groove width L4 of the slideway is 7mm, the center distance L5 from the front slideway body to the rear slideway body is 560mm, and the slideway body Length L6 is 66mm, and the processing and bonding method of airborne rocket shell slideway of the present invention are as follows:

[0090] 1) Processing of a pair of front slideway bodies and a pair of rear slideway bodies

[0091] The groove width of a pair of front slideway bodies and a pair of rear slideway body guide grooves is the same as L3, and the machining accuracy and deviation of L3 are L3(0, +0.02mm);

[0092] Machining of a pair of front chute a...

Embodiment 3

[0110] For a certain type of 30Si2MnCrMoVE low-alloy high-strength steel small shell, its outer diameter is 220mm, the shell length is 1150mm, the distance L1 between the bottom of a pair of front slideway body guide grooves is 36mm, and the pair of rear slideway body guides The distance L2 between the groove bottoms is 72mm, the guide groove width L3 of the slideway body is 11mm, the groove width L4 of the slideway is 9mm, the center distance L5 from the front slideway body to the rear slideway body is 560mm, and the slideway body Length L6 is 80mm, and the processing and bonding method of airborne rocket shell slideway of the present invention are as follows:

[0111] 1) Processing of a pair of front slideway bodies and a pair of rear slideway bodies

[0112] The groove width of a pair of front slideway bodies and a pair of rear slideway body guide grooves is the same as L3, and the machining accuracy and deviation of L3 are L3(0, +0.02mm);

[0113] Machining of a pair of f...

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Abstract

The invention discloses a processing and bonding method of an airborne rocket shell slideway. The processing and bonding method comprises a pair of front slideways and a pair of rear slideways. Each front slideway comprises a front slideway body and a front sliding groove. Each rear slideway comprises a rear slideway body and a rear sliding groove. The processing of the pair of front slideway bodies and the pair of rear slideway bodies, the processing of the pair of front sliding grooves and the pair of rear sliding grooves, the manufacturing of samples and parts and the bonding and curing ofthe parts and the samples are achieved. A high-shear-strength adhesive and an optimized curing parameter are selected, an efficient bonding surface treatment method is adopted, a high-precision integral bonding special positioning and clamping device and reasonable bonding part size precision design and processing are adopted, the bonding effects of high bonding shearing strength, high bonding precision and high bonding efficiency are obtained, and the bonding shearing strength is improved from 26 MPa to at least 40 MPa. The device not only can be used for processing and high-strength bondingof the airborne rocket shell slideway, but also can be used for processing and high-strength bonding of other similar product parts.

Description

technical field [0001] The invention relates to the technical field of solid rocket combustion chamber casing processing, in particular to a method for processing and bonding airborne rocket casing slideways. Background technique [0002] With the rapid development of technologies such as drones and helicopters, more and more airborne defense products and environmental detection products powered by solid rockets are used, which are characterized by large quantities, high processing efficiency, and low manufacturing costs. [0003] The slideway of a certain type of airborne small rocket shell is made of brass slideway with good wear resistance and the front and rear slideway joints of high-strength steel. The bonding shear strength is required to be not less than 28MPa. The dimensional error is not greater than 0.1mm, and high processing efficiency is required. In the early stage of development, the commonly used epoxy adhesive and the ordinary clamping method of separating ...

Claims

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Application Information

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IPC IPC(8): F16B11/00
CPCF16B11/006
Inventor 韩庆波李文婷刘兴旺郑富文吴吉昌
Owner 湖北三江航天江北机械工程有限公司
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