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Device for punching valve casing seal chamfer

A technology of impact processing and impact body, applied in the direction of engine components, mechanical equipment, etc., can solve the problems of difficult control of manual percussion force, different action stroke length, unstable chamfer size, etc., and achieve novel structure and precise processing position , solve the effect of smoking

Active Publication Date: 2015-04-01
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing processing method is difficult to control due to the artificial percussion force, and the length of the action stroke is different, resulting in unstable chamfer size, incomplete shape, and poor adhesion after testing. This is the main reason for leakage and smoke.

Method used

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  • Device for punching valve casing seal chamfer
  • Device for punching valve casing seal chamfer
  • Device for punching valve casing seal chamfer

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Effect test

Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] see figure 1 The valve nozzle of the turbine power generation device includes a valve housing 11, a steel ball 12, a return spring 13 and a valve ejector rod 14. It can be seen from the figure that the closed state of the ball socket at the junction of the sealing steel ball 12 and the valve housing 11 affects its sealing performance.

[0029] see Figures 2 to 4 , the present invention includes a base 1, a positioning pin 2, a valve ejector rod simulation part 3, a travel bracket 4, a limit operation pin 5, a movable impact body 6, a counterweight 7, a screw nut assembly 8, a steel ball 12 and a traction rope 9; The base 1 plays a stabilizing role in the process of processing. The force-bearing surface of the impact operation is borne by the circular step surface of the base 1, which is located at the support surface of the positioning pin 2, and t...

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Abstract

A device for punching a valve casing seal chamfer comprises a base, a location pin for centering the valve casing is arranged on the base, a steel ball for punching is arranged at the position of the valve casing seal chamfer, and a valve ejection rod simulation part is connected with the upper portion of the steel ball. A cylindrical movable punching element is mounted on the upper portion of the valve ejection rod simulation part through a travel support, and the tail of the movable punching element is connected with a cylindrical counter weight through a screw and nut component. The movable punching element falls vertically to punch the valve ejection rod simulation part to enable the steel ball to punch the valve casing to obtain the seal chamfer. According to the device, the speed and the quality of the movable punching element during punching are fixed, so that quantity control can be performed on the punching process, the machining position is accurate through the location pin and the travel support, the chamfer deformation is uniform, one-step shaping is formed, the joint seal meets requirement, and the product quality is improved; the device is novel in structure, practical and safe and reliable; the problem of smoking of turbine power generation devices is solved.

Description

technical field [0001] The invention belongs to the valve processing technology of an engine turbine power generation device, and in particular relates to a device for impact processing the seal chamfering of a valve housing. Background technique [0002] The chamfer of the opening of the engine valve housing and the steel ball are not well connected, which may easily lead to smoke. The size of the chamfering of the valve housing opening is required to be 0.05-0.15 mm. The traditional processing method is to manually hit the punch with a ball head with a hammer, and the edge of the valve housing opening is chamfered by the punch. [0003] The existing processing method is difficult to control the manual knocking force, and the length of the action stroke is different, resulting in unstable chamfer size, incomplete shape, and poor adhesion after testing. This is the main reason for leakage and smoke. Contents of the invention [0004] The object of the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D53/84
CPCB21D22/02B21D53/84
Inventor 江涛秦瑾琦张春峰韩新艳郭相峰张俊吕君赵红娥
Owner AECC AVIATION POWER CO LTD
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