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Method and fixture for controlling turning deformation of ultra-thin wall aluminum alloy high-precision nozzle sealing groove

An aluminum alloy, high-precision technology, used in turning equipment, manufacturing tools, turning equipment, etc., can solve problems such as batch scrap, deviation from design requirements, process technology bottlenecks, etc., to reduce nozzle profile errors and improve the surface of parts. Quality, avoid the effect of clamping deformation

Inactive Publication Date: 2019-04-16
GUIZHOU YONGHONG AVIATION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Deviating from the design requirements, resulting in batch scrapping, resulting in technological bottlenecks in the process of product realization, making it impossible to complete product delivery, which has seriously affected the progress of scientific research and production

Method used

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  • Method and fixture for controlling turning deformation of ultra-thin wall aluminum alloy high-precision nozzle sealing groove
  • Method and fixture for controlling turning deformation of ultra-thin wall aluminum alloy high-precision nozzle sealing groove
  • Method and fixture for controlling turning deformation of ultra-thin wall aluminum alloy high-precision nozzle sealing groove

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings, but the claimed protection scope is not limited to the description.

[0028] like Figure 5 and Image 6 As shown, the routine processing of parts of this product is prone to dimensional deformation out of tolerance, and the surface roughness of the product is unqualified. The following scheme is adopted:

[0029] Design and manufacture a set of high-precision large-capacity expansion fixtures, such as figure 1 , Figure 1a and Figure 1b As shown, the ultra-thin-walled aluminum alloy high-precision nozzle sealing groove turning fixture includes an elastic expansion sleeve support body 4 with a continuously variable outer diameter, an opening expansion ring 5 and a clamp body 6; the elastic expansion sleeve support body 4 and the clamp body 6 can be Disassembly and connection; the opening expansion ring 5 is placed on the outer peripheral surface of the elastic expan...

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Abstract

The invention discloses a method and fixture for controlling a turning deformation of an ultra-thin wall aluminum alloy high-precision nozzle sealing groove. The fixture comprises an elastic expansionsleeve support body (4) with a continuously variable outer diameter, an opening expansion ring (5) and a fixture body (6); the elastic expansion sleeve support body (4) and the fixture body (6) are detachably connected; and the opening expansion ring (5) is arranged on the outer peripheral surface of the elastic expansion sleeve support body (4); and the fixture body (6) is connected to a machinetool. According to the method and the fixture, the inner hole positioning of the nozzle of a special-shaped sealing groove is utilized, and the evenly distributed clamping force in the circumferential direction when the fixture is positioned and clamped is ensured by relying on a fixture profile and the arc inner surface of the nozzle is fitly close to 360 DEG, so that the clamping deformation and turning deformation of an ultra-thin wall aluminum alloy part are avoided; and meanwhile, the direction of clamping force is symmetrically stressed with a contact point of a tool and a part during the machining process, so that the deformation of the part is effectively controlled.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a deformation control method and a corresponding deformation control device during turning of ultra-thin aluminum alloy high-precision nozzle sealing grooves. Background technique [0002] like Figure 5 and Image 6 As shown, a kind of aviation aluminum heat exchanger product, in the first processing process of the product, the traditional processing method cannot meet the design requirements, that is, in addition to the complex nozzle surface of the product, the wall thickness of the processing position is relatively thin, and the tube Mouth diameter size The roundness of the nozzle is required to be 0.1mm, and the surface roughness of the nozzle surface is required to be 1.6. Due to the deformation of the parts during processing, the cutting vibration is generated during the processing of thin-walled parts, the surface finish is poor, the nozzle pr...

Claims

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Application Information

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IPC IPC(8): B23B1/00B23B5/00B23Q3/00
CPCB23B1/00B23B5/00B23Q3/00B23Q2703/10
Inventor 郭文平吕仕强吴通强
Owner GUIZHOU YONGHONG AVIATION MACHINERY
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