Drawing method of edge sealing frame type part hydraulically formed based on rubber bladder

A technology of hydroforming and rubber bladder, which is applied in the field of drawing of sealing frame parts based on hydroforming of rubber bladder, can solve the problems of easy wrinkling and twisting, and achieve shortened mold design and manufacturing cycle, high surface quality and convenient operation. Effect

Inactive Publication Date: 2015-04-15
HARBIN
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a drawing method for sealing frame parts based on rubber bladder hydroforming, which ca

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] The specific embodiments of the present invention will be further described below.

[0010] The general idea of ​​the present invention is to adopt the material-moving method to add drawing beads or drawing sills to the mold design, so that the crimping part is changed to two-way stretching deformation or the excess material that is prone to wrinkles is transferred to the drawing sill . When the wool is bent, tangential pulling force is applied to change the stress state in the section of the wool to reduce or basically eliminate the bending springback, thereby improving the forming accuracy of the part.

[0011] Step 1: According to the analysis of the forming process of the part and the forming characteristics of the material, determine the drawing direction and the parts that are easy to wrinkle, so as to determine the number, position and shape of the drawing sills or drawing beads on the drawing forming die. Design and manufacture drawing forming dies.

[0012] The focu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the feild of a machinery manufacturing technology and relates to a drawing method of an edge sealing frame type part hydraulically formed based on a rubber bladder. The drawing method comprises the following steps of: step 1, analyzing according to the part forming technology and the material forming features, confirming the drawing direction and the part position easily wrinkled, and further confirming the amount, position and shape of drawing thresholds or drawing ribs on a drawing and shaping die, and designing and manufacturing the drawing and shaping die; step 2, selecting the forming material status, the wool size, the material fiber direction and the forming pressure of the hydraulic forming machine of the rubber bladder, and manufacturing the part. According to the drawing method, the part can be formed by one time, the part cannot be affected due to sizing after being quenched and the drawing and forming effect is ensured, so that the part surface is higher in quality and better in rigidity, and the adhesion quality of the edge sealing frame type part is also improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and relates to a drawing method for sealing frame parts based on hydroforming of a rubber bag. Background technique [0002] In order to meet the needs of bonding, aircraft sealing frame parts have high requirements for surface quality and flatness, and the shape and structure of such parts are relatively complex, mostly space curved surface structures. For this type of parts, the material is thin, and the material is retracted and released during the forming process, and the flange edge is prone to wrinkles; the traditional sheet metal process requires manual correction after forming, which inevitably produces hammer marks. These problems directly affect and restrict the forming quality and bonding quality of parts. [0003] At present, in the domestic aircraft manufacturing industry, the application of rubber bladder hydroforming machines still stays in the ordinary mold formi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21D25/02
Inventor 马德权刘军基王福昌刘丽红杜秀翠赵红卫邵继胜杜淑萍张雪东黑东盛岳景山
Owner HARBIN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap