Device for centering and clamping tubular parts

A centering and clamping technology, used in auxiliary devices, pipes/pipe joints/fittings, through components, etc., can solve the problems of complex production and high cost, improve stress transmission, facilitate maintenance and repair, and increase the number of Effect

Inactive Publication Date: 2008-08-13
塞丽麦克斯公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a device is rather complex to manufacture and thus expensive

Method used

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  • Device for centering and clamping tubular parts

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Embodiment Construction

[0020] The centering and clamping device according to the invention shown in this single figure comprises an elongated cylinder 1 comprising in particular a clamping device capable of clamping the pipes to be aligned, said centering and the clamping device fit in the pipes to be aligned.

[0021] These clamping means comprise at least one set of clamping shoes 2 arranged on the entire circumference of the cylinder 1 and adapted to be moved so as to project radially from said cylinder 1 in order to press against the On the wall of the pipe to be clamped.

[0022] In this single figure, two sets of clamping shoes 2 are shown (one set for each end of the pipe to be fitted), but it is also possible to use only one set of clamping shoes and end in a U shape, bearing on each end to be assembled.

[0023] Drive means are provided for moving the sets of clamping shoes in order to drive said clamping shoes between their protruding position in the cylinder 1 and their retracted positi...

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PUM

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Abstract

The invention concerns a device for centering and clamping tubular parts such as conduits designed to form pipeline pipes of the type consisting of an elongated cylinder (1) comprising in particular clamping means, such as at least clamping shoes (2) arranged over its entire periphery and adapted to be radially mobile projecting from said cylinder (1) to be urged to press against the walls of the conduits to be clamped as well as means for moving each of the series of clamping shoes (2) between a position projecting from the cylinder (1) and a position wherein they are retracted into the cylinder (1). The invention is characterized in that said driving means consist of a driving member (3) removably connected to a plate (4) which bears a plurality of support components (5) on each of which is mounted pivoting about an axis of the first end of a link rod (6) in the manner of a swivel joint, the second end of the link rod (6) being likewise mounted pivoting about an axis, in the manner of a swivel joint in a second support component bearing a centering shoe (2), the sliding driving movement of the driving member (3) in a longitudinal direction of the cylinder (1) causing the first end of the link rods (6) to pivot while the resulting pivoting movement of the second end of the link rods (6) causes the radial displacement of the associated clamping shoes (2). The invention is applicable to the construction of piping systems.

Description

technical field [0001] The present invention relates to a device for centering and clamping tubular parts, such as metal pipes concentrically adjoined to be welded to form a metal tube in a pipeline. Background technique [0002] When welding these pipes, it is necessary to properly align the axes of the pipes and maintain these aligned pipes during the welding process. In fact, in the case of misalignment of the axes, the assembled joint between the pipes will be irregular, which can lead to defects from the point of view of welding quality. Thus, the centering and clamping device is capable of aligning the pipe for pipe welding and maintaining that alignment during the welding process. Such devices are described inter alia in EP 1,123,774 and EP 076,719. [0003] Standard devices of this type consist of an elongated barrel carrying gripping devices, such as gripping shoes, arranged over its entire perimeter and adapted to move radially from the barrel The body protrudes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/053
CPCF16L19/06B23K37/0531B23K37/00B23K37/053
Inventor G·理查德J-F·达格纳依斯D·达斯托彻
Owner 塞丽麦克斯公司
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