DD218579A1 - CLAMPING DEVICE FOR WELDING CORNERHOUSES ON STRAIGHT CHANNELS OF SHIP VENTILATION WITH ROUND OR RECTANGULAR CROSS SECTION - Google Patents

Abstract

The invention relates to a device for welding Ecknaehten to straight channels of the ship's hatch with round or rectangular cross-section. The aim of the invention is to improve the seam quality by better adherence to the optimum position of the welding bath, to avoid rework and to reduce heavy physical work. The invention is characterized in that a self-contained intake and maintenance of the equilibrium position takes place by means of a specially shaped clamping beam. In this situation, the welding is best carried out and a message is avoided. Fig. 1

Description

Title of the invention

Clamping device for welding corner seams on straight channels of ship ventilation with a round or rectangular cross-section

field of use

Production of fan ducts, especially for ships

Characteristic of the known technical solutions

When welding corner seams on thin sheets, there is the problem of low lateral stability of the weld pool and deformation. Therefore, the welding is usually done manually · For machine welding, which is possible only in horizontal position or inclined, there is the problem of exact adjustment of the horizontal position. The almost always necessary readjustment, the quality of which depends on the experience of the welder, is done manually. Often seam welding errors occur during semi-automatic welding which have to be repaired manually.

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Object of the invention

The object of the invention is to provide a clamping device au, which increases the seam quality by better compliance with the horizontal position and abolishes heavy physical work and prevents deformation of the channel.

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Presentation of the essence of the invention

The invention has for its object to provide a device that allows easy clamping of channels to be welded with exact compliance with the horizontal position without news. According to the invention the object is achieved in that the channel to be welded is pushed onto a split clamping bar. He rests on 2 points and takes on his own equilibrium position. The cross section of the split beam is designed so that different cross sections can be stored. The adjustment of the distance of the two halves of the tension bar is done manually. To secure the channel against displacement, the channel is pressed against the clamping bar.

The invention will be explained below using an exemplary embodiment. The drawings show:

Figure 1 is the front view Figure 2 the section A-A

Figure 3 shows another possible cross section of the clamping bar

The device consists of the split clamping bar (11), which is held by the support (8) and the post (12). For loading and unloading of the channels, the beam is pivoted laterally outwards. Therefore, the post in the bearings (1, 3) is rotatably mounted. The halves of the tension bar are movably attached to the post with a dovetail guide (15). The pin (10) is used to ensure the necessary stability. The locking of the clamping beam halves is done non-positively by means of pressure screws (5). The subframe consists of the uprights (2, 9) and the carriageway (4) of the welding machine (welding tractor and the like) (6). At the same time the sliding safety device (7) is attached to the carriageway ·

If one uses an undivided clamping beam (14), corresponding fitting pieces (13) are pushed onto the beam for welding round cross sections.

Claims (2)

Inventive h 1, clamping device for welding corner seams on straight channels of the ship's ventilation with round or rectangular cross section, characterized in that the clamping bar is designed to be split longitudinally and is adapted by changing the Abstaades to be welded to the cross section. 2, clamping device according to item 1, characterized in that the clamping bar is executed undivided and is adapted by appropriately shaped additional pieces to be welded to the cross-section. Here to Signatures