Unlock instant, AI-driven research and patent intelligence for your innovation.

A device and method for correcting the shape of pits in variable-section special-shaped pipes

A special-shaped pipe and variable cross-section technology, which is applied in the field of pipe precision shaping and correcting devices, can solve problems such as easy pits on the surface, inaccessible hammers, and parts that do not meet the design requirements. simple effect

Active Publication Date: 2022-03-08
BEIJING HANGXING MACHINERY MFG CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the process of forming or transferring the air inlet, the surface is prone to pits, which will cause the part surface to fail to meet the design requirements
At present, the common method is to knock with a hammer to eliminate the pits, but for variable cross-section, small diameter, bending and long pipe length, the hammer will not be able to reach in for shaping

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A device and method for correcting the shape of pits in variable-section special-shaped pipes
  • A device and method for correcting the shape of pits in variable-section special-shaped pipes
  • A device and method for correcting the shape of pits in variable-section special-shaped pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Taking an aluminum alloy pipe with variable cross-section as an example, its cross-section changes as follows: figure 1 shown. The special-shaped pipe material is 5A06 aluminum alloy, the length of the pipe along the axial direction is 1000mm, and the wall thickness is 4.0mm.

[0062] Aluminum alloy variable cross-section special-shaped pipe pit correction device, including manual pump 1, hydraulic hose 2, hollow jack 3, rotating ejector rod 4, conformal top block, base 6, two conformal snap rings 7, and support columns 8;

[0063] The joint of the manual pump 1 is connected with the oil valve 31 of the hollow jack 3 through the hydraulic hose 2; the upper part of the side surface of the piston rod 32 protruding from the hollow jack 3 has a threaded hole 321; hole, through the cooperation of the threaded connector passing through the through hole and the threaded hole 321, the rotating push rod 4 is fixed on the piston rod 32; Figure 5 with Image 6 As shown), it h...

Embodiment 2

[0072] Taking a circular steel pipe as an example, the circular steel pipe is No. 45 steel, the axial length of the pipe is 1000mm, the inner diameter is 300mm, the wall thickness is 3mm, and the cross-sectional shape of the pipe is circular.

[0073] Circular steel pipe pit shape correction device, including manual pump 1, hydraulic hose 2, hollow jack 3, rotating ejector rod 4, conformal top block, base 6, two conformal snap rings 7, and support column 8;

[0074] The joint of the manual pump 1 is connected with the oil valve 31 of the hollow jack 3 through the hydraulic hose 2; the upper part of the side surface of the piston rod 32 protruding from the hollow jack 3 has a threaded hole 321; One end of the rod 4 is cylindrical and is used to fix the top block with the type, and the other end is flat with a through hole, and is fixed on the piston rod 32 by the cooperation of the threaded connector passing through the through hole and the threaded hole 321. The angle between ...

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 provides a device and method for correcting the shape of a variable-section special-shaped pipe pit. The device includes a manual pump, a hydraulic hose, a hollow jack, a rotating ejector rod, and a follow-up ejector block. When correcting the shape, according to the radian shape of the inner surface at the pit position of the special-shaped pipe, select the matching top block, install the two top blocks on the end of the rotating ejector rod, and then pass through the through hole on the rotating ejector rod The threaded connection fixes the rotating ejector rod on the piston rod; put the installed hollow jack into the special-shaped pipe, and the position of the top block corresponds to the position of the pit, and the pressure is applied by a manual pump placed outside the special-shaped pipe to make the hollow jack The piston rod of the jack moves upwards slowly, and with the contact of the top block with the pit, the pit is gradually lifted up and becomes a smooth surface. The device and method of the invention can simply and effectively eliminate the pits of variable-section special-shaped pipes, make the surface of the parts smooth, and improve the qualified rate of the parts.

Description

technical field [0001] The invention relates to a device and method for precise shaping and correcting of pipes, in particular to a device and method for correcting the shape of pits in variable-section special-shaped pipes. Background technique [0002] With the rapid development of aerospace vehicles, the complexity and precision requirements of its parts have increased significantly. Especially the special-shaped pipes such as the aluminum alloy air inlet, the core part of the aerospace vehicle, due to product requirements, its cross-section is usually a variable cross-section (such as figure 1 ), small diameter, curved, thin wall and long pipe length. Therefore, during the forming or transfer process of the air inlet, pits are prone to appear on the surface, which will cause the part surface to fail to meet the design requirements. At present, the common method is to knock with a hammer to eliminate the pit, but for variable cross-section, small diameter, bending and l...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B21D3/10
CPCB21D3/10
Inventor 薛杰秦中环李保永刘玉平刘伟刘奇徐柄桐肖瑞
Owner BEIJING HANGXING MACHINERY MFG CO LTD