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Laser welding clamping and positioning device and method for curved cylinder structure

A technology of laser welding and clamping positioning, applied in laser welding equipment, welding equipment, welding equipment, etc., can solve the problems that the turntable cannot be synchronized and affects the welding quality, etc., to ensure welding deformation, improve welding quality, and improve assembly efficiency Effect

Active Publication Date: 2020-06-05
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the welding clamping device clamps the cylinder, it is driven by the turntable to realize the rotation function; when the clamping device adopts another turntable to realize the rotation function, the two turntables cannot be synchronized in a strict sense, which will cause additional stress and affect the welding quality

Method used

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  • Laser welding clamping and positioning device and method for curved cylinder structure
  • Laser welding clamping and positioning device and method for curved cylinder structure
  • Laser welding clamping and positioning device and method for curved cylinder structure

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Embodiment Construction

[0034] In order to make the present invention easier to understand, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, the present invention is a laser welding clamping and positioning device with a curved cylindrical structure, which includes a clamping and rotating assembly at the front end, a positioning and clamping assembly in the middle, and a part clamping assembly at the tail end, wherein

[0036]The clamping and rotating assembly includes a bearing column 6, a rolling bearing 4, a rotating bushing 3, a connecting bushing 2, a limit pin 5 and a central rotating shaft 1, and the central rotating shaft 1 is rotatably placed in the connecting bushing 2, The rotating shaft sleeve 3 is set outside the connecting shaft sleeve 2 and fixed as a whole, the rotating shaft sleeve 3 is rotatably placed...

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Abstract

The invention discloses a laser welding clamping positioning device and method for a curved cylinder type structure. The laser welding clamping positioning device comprises a clamping rotating assembly at the front end, a positioning clamping assembly in the middle and a part jacking assembly at the tail end, wherein the clamping rotating assembly comprises load bearing columns, rolling bearings,rotating shaft sleeves, connecting shaft sleeves, a limiting pin and a center rotating shaft; the positioning clamping assembly comprises a positioning shaft sleeve, a nozzle positioning combination device, welding seam positioning combination devices and a threaded connecting shaft; and the part jacking assembly comprises a joint bearing, bearing sleeves and tail portion positioning columns. According to the laser welding clamping positioning method, by using the laser welding clamping positioning device, clamping positioning is realized, rapid and accurate positioning of a particular weldingplane annular welding seam is realized, friction resistance is significantly reduced, welding deformation of the cylinder structure is guaranteed, the assembly efficiency can be significantly improved, rapid clamping and positioning of curved cylinders are realized, the assembly stress is relieved, stress deformation in the welding process is controlled, and the welding quality is further improved.

Description

technical field [0001] The invention relates to the field of welding, in particular to laser welding, and relates to a laser welding clamping and positioning method and device for a curved cylinder structure whose cylinder axis changes in an arc shape, and is also applicable to other fusion welding methods. Background technique [0002] The curved cylinder structure whose cylinder axis changes in an arc shape is a thin-walled, shell-shaped, cantilever beam-bearing structure, and its typical structural form is as follows: figure 1 As shown, the cylinder diameter is 50mm-300mm, the welding thickness is 2mm-6mm, the central axis of the cylinder structure is arc-shaped, and the arc radius R is usually 500mm-3000mm. In order to ensure high manufacturing accuracy, laser welding with low heat input and small welding deformation is the best way to achieve integrated manufacturing. [0003] In order to ensure the accuracy of the welding shape of the cylinder structure, the puller-ty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04B23K26/70B23K26/24
CPCB23K26/24B23K26/702B23K37/0443
Inventor 许飞陈俐毛智勇彭丽平马轶伦巩水利杨璟
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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