Method for producing bearing ball socket swinging spray pipe

A production method and technology of bearing balls, applied in the direction of support, clamping, positioning devices, etc., can solve the problems of time-consuming and labor-intensive, easily damaged nozzle internal parts, error accumulation, etc., to shorten assembly time, reduce friction damage and seal The risk of ring damage, the effect of eliminating cumulative errors

Active Publication Date: 2014-06-25
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

This method has the following disadvantages: due to the error accumulation caused by the separate processing of the convergent section shell and the diffuse section shell, the design requirements for the consistent center of the ball and the center line of the bearing hole cannot be guaranteed; because the fit clearance between the shaft pin and the shaft hole is only 0.01mm ~0.025mm. During the assembly process, the operator needs to manually rotate the press repeatedly to apply pressure and release pressure to align the shaft hole, which is time-consuming and labor-intensive. Since this assembly method is an asymmetrical balanced force assembly, it is easy to damage the nozzle. Tube Internal Parts

Method used

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  • Method for producing bearing ball socket swinging spray pipe
  • Method for producing bearing ball socket swinging spray pipe
  • Method for producing bearing ball socket swinging spray pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Process conditions:

[0033] A certain type of bearing ball and socket swing nozzle, the spherical size of the nozzle shell is SR140±0.05mm, the spherical clearance requires 0.12mm~0.20mm, and the material is titanium alloy.

[0034] Second, the process steps:

[0035] a. Processing convergence section components:

[0036] The converging section shell blank is machined into a converging section shell meeting the design requirements, and then the converging section heat insulation layer is bonded on the inner surface of the converging section shell to form a converging section assembly;

[0037] b. Diffusion section components for distribution vehicles:

[0038] Process the shell blank of the diffuser section, in which the size of the ball head is matched with the size of the ball socket of the shell of the convergent section, and then the heat insulating layer of the diffuser section is bonded to the inner surface of the diffuser section to form a diffuser section ...

Embodiment 2

[0050] 1. Process conditions:

[0051] A certain type of bearing ball and socket swing nozzle, the spherical size of the nozzle shell is SR115±0.05mm, the spherical clearance requires 0.18mm~0.25mm, and the material is titanium alloy.

[0052] Second, the process steps:

[0053] a. Processing convergence section components:

[0054] The converging section shell blank is machined into a converging section shell meeting the design requirements, and then the converging section heat insulation layer is bonded on the inner surface of the converging section shell to form a converging section assembly;

[0055] b. Diffusion section components for distribution vehicles:

[0056] Process the shell blank of the diffuser section, in which the size of the ball head is matched with the size of the ball socket of the shell of the convergent section, and then the heat insulating layer of the diffuser section is bonded to the inner surface of the diffuser section to form a diffuser section ...

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Abstract

The invention relates to a method for producing a bearing ball socket swinging spray pipe. The method comprises the following steps of: processing a convergent forging component; fitting out an expanded forging component; making a machining tool; machining a bearing hole through a combined mill; making an assembly tool; assembling; and testing. By the invention, the accumulated errors caused by separate fitting out and combined processing of parts planned to be assembled is eliminated by using fitting out and combined processing in combination, so the consistency between the sphere centers of the convergent forged shell and the expanded forged shell, and the bearing hole central lines is ensured; meanwhile, the assembly tool ensures that the assembly is right by applying pressure once, so the assembly time is reduced; the guiding and limiting functions of keys and shafts in the assembly tool ensures that the convergent forging component does not produce radial force in a pressed process; and therefore, risks of friction damage and sealing ring damage to a spherical surface are reduced.

Description

technical field [0001] The invention relates to a production method of a ball-and-socket nozzle, in particular to a production method of a ball-and-socket swing nozzle. Background technique [0002] The bearing ball-socket swing nozzle is one of the ball-socket nozzles. Its main parts are a pair of ball-socket friction pairs, a pair of bearings and sealing components. The shaft pin and the joint bearing are connected together, and the sealing assembly is used for sealing, and the male ball head can swing around the shaft at a certain angle with the bearing through the actuator. [0003] In order to ensure the reliable structure and flexible swing of the nozzle, in the production of the bearing ball socket swing nozzle, there are high requirements for processing and assembly: the surface roughness of the female ball socket after machining reaches Ra0.8μm; The surface radius size accuracy reaches the tolerance level of ±0.05mm, the spherical shape accuracy reaches 0.03mm, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23Q3/00B25B27/02
Inventor 钟臻荣王华东余天雄何华锋
Owner 湖北三江航天江北机械工程有限公司
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