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Flexible Fixtures for Vertical Assembly of Large Thin-walled Cylindrical Members

A thin-walled cylinder, flexible fixture technology, used in auxiliary devices, manufacturing tools, auxiliary welding equipment, etc., can solve the problems of low clamping efficiency, difficulty in ensuring the geometric shape of the cylinder, and complicated operations, so as to improve assembly efficiency, The effect of reducing uncontrollable factors and uniform force

Active Publication Date: 2015-12-02
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the auxiliary support and clamping device used in this technology needs to manually adjust the clamping force and the position of the locking positioning element. The operation is very complicated and the clamping efficiency is low; There is no auxiliary support on the inner side, which will cause large clamping deformation during the clamping process of large thin-walled cylindrical members, and it is difficult to ensure the geometric shape of the cylindrical body

Method used

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  • Flexible Fixtures for Vertical Assembly of Large Thin-walled Cylindrical Members
  • Flexible Fixtures for Vertical Assembly of Large Thin-walled Cylindrical Members
  • Flexible Fixtures for Vertical Assembly of Large Thin-walled Cylindrical Members

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Embodiment 1

[0032] Such as figure 1 As shown, this embodiment includes: an array of internal support fixtures 1, a support structure 2, and an array of external pressure fixtures 3, wherein: the array of internal support fixtures 1 is fixed on the ground, and the array of external pressure fixtures 3 is supported on the support structure 2, four The supporting structures 2 are evenly distributed along the circumference.

[0033] Such as figure 2 As shown, the inner support fixture array 1 includes: an upper inner support fixture array 4, a lower inner support fixture array 6 and a three-degree-of-freedom support mechanism, wherein: the upper inner support fixture array 4 and the lower inner support fixture array are composed of multiple A group of circularly arranged three-degree-of-freedom support mechanisms are used to apply support force inside the thin-walled cylindrical member and adjust the magnitude and direction of the force.

[0034] Such as image 3 As shown, the three-degre...

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Abstract

The invention relates to flexible fixture equipment for assembling of a large-size thin-wall cylindrical component in the automatic assembling field. The flexible fixture equipment comprises an internal supporting fixture array which is arranged inside the thin-wall cylindrical component and is used for supporting, an external pressing fixture array which is arranged outside the thin-wall cylindrical component and is used for pressing, and a supporting structure thereof, wherein the supporting structure is fixedly arranged on the ground and is connected with the external pressing fixture array to realize vertical adjustment, the external pressing fixture array uniformly applies pressing force to the thin-wall cylindrical component along the circumferential direction from outside to inside, the internal supporting fixture array uniformly provides supporting force to the thin-wall cylindrical component along the circumferential direction from inside to outside, and the uniform clamping and fixing of the large-size thin-wall cylindrical component are realized through the matching of the pressing force and the supporting force. The flexible fixture equipment has the advantages of compact configuration, multipoint adjustment, uniform stress, small deformation, high assembling efficiency and strong bearing capacity.

Description

technical field [0001] The invention relates to a device in the technical field of automatic assembly, in particular to a flexible fixture for vertical assembly of large thin-walled cylindrical components. Background technique [0002] Launch vehicle storage tanks, aircraft fuselages and other components are spliced ​​with aluminum alloy thin-walled components in the form of grids in order to reduce their own weight. This structure has the characteristics of large scale and low rigidity, and its own gravity will cause great deformation. In order to ensure the assembly accuracy and reduce the docking error in all directions, the fixture is required to have the characteristics of multi-point regulation and uniform force. In addition, due to the large scale of the workpiece to be clamped, in order to reduce the difficulty of processing in the process of designing the fixture, it is necessary to adopt a modular splicing method to design and manufacture. Aiming at the above prob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/053
CPCB23K37/053
Inventor 王皓来新民赵勇孔令雨陈坤勇陈正涛
Owner SHANGHAI JIAO TONG UNIV
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