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A heat treatment shape control fixture and clamping method for machined framed parts

A technology of parts and fixtures, which is applied in the field of heat treatment shape control fixtures and clamping of machined frame parts, can solve the problems of large thermal deformation of façade ribs, unguaranteed size and flatness requirements, and high scrap rate

Active Publication Date: 2020-11-13
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing technology generally uses the free state to be placed flat on the bottom plate of the heat treatment furnace for heat treatment. During the heat treatment process, the plane of the part and the vertical ribs are thermally deformed, the size and flatness requirements cannot be guaranteed, and the scrap rate is high.

Method used

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  • A heat treatment shape control fixture and clamping method for machined framed parts
  • A heat treatment shape control fixture and clamping method for machined framed parts
  • A heat treatment shape control fixture and clamping method for machined framed parts

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0033] It should be understood that the appended drawings are not to scale, presenting a suitably simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations and shapes will be determined in part by the particular intended application and use environment.

[0034] In the accompanying figures, the same or equivalent parts (elements) are designated with the same reference numerals.

[0035] Figure 2A It is a schematic diagram of the installation and positioning of parts on the heat treatment fixture. Figure 2B It is a top view schematic diagram of the installation and positioning of parts on the heat treatment fixture. Such as Figu...

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Abstract

The invention provides a machined frame part heat treatment shape-control clamp and a clamping method. According to the machined frame part heat treatment shape-control clamp, a positioning pin and apressing plate are added on a frame to fixing and clamping, a fixing sleeve is arranged on the frame, support columns are arranged in the fixing sleeve, a cross beam is arranged between the support columns, and a wedge block is arranged between the cross beam and the pressing plate for transverse force application, so that the shape of the part in the heat treatment machining process is ensured. According to the machined frame part heat treatment shape-control clamp, the technical problems in the prior art that parts are directly placed on a bottom plate of a heat treatment furnace, a web plate and two side edge strips of the parts are large in thermal deformation, the size and the flatness requirements are not guaranteed, and the rejection rate is high are solved.

Description

technical field [0001] The invention belongs to the technical field of heat treatment of machined frame parts, and in particular relates to a shape-controlling fixture and a clamping method for heat treatment of machined frame parts. Background technique [0002] The machined frame parts are composed of webs and ribs, and there are mounting positioning holes on both sides of the parts, and the parts are manufactured by integral machining. The part is arched as a whole, with ribs on both sides and a web in the center. There are installation positioning holes at both ends of the part. The thickness of the part is uneven, and the overall length is 1.2 meters. The part requires vacuum heat treatment to eliminate the welding stress of the part and stabilize the size of each part. , to ensure the position requirements of the installation positioning holes, and to ensure the flatness requirements of the parts. In the prior art, the heat treatment is generally carried out on the bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/00C21D9/50C21D1/30C21D1/773
CPCC21D1/30C21D1/773C21D9/0068C21D9/50
Inventor 焦清洋魏廷光刘刚
Owner SHENYANG AIRCRAFT CORP
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