SU761209A1 - Stand for assembling straightening and welding large-sized cylindrical articles - Google Patents

Description

The invention relates to welding, in particular, to devices for assembling, straightening and welding segments of large-sized cylindrical products used in hydraulic construction, chemical and gas engineering.

A stand for assembling, dressing and welding of large-sized cylindrical products is known, which contains radially mounted on the base supports for the product and 10 clamps of the product against the stops [1].

A disadvantage of the known stand is its low productivity and high labor intensity, since pressing the product segments and straightening them to the required curvature is done manually due to the effort of the worker or using known small-scale mechanization tools.

The purpose of the invention is to increase productivity by providing automatic clamping and straightening of the product under the action of its weight.

For this purpose, each product clamp is made in the form of a guide wedge obliquely fixed on the base with a block of a clamping wedge with a supporting platform for the product mounted for movement in the indicated guide, as well as a counterweight with a cable fixed to it with one end. other end with a clamping wedge and slung over the guide block.

FIG. 1 shows the proposed stand; in fig. 2 - the same, top view; in fig. 3 - clamp in the starting position.

The stand for assembling, dressing and welding of large-sized cylindrical products contains a base 1 with supports 2 radially fixed on it for the product and clamps 3 products to the stops 2.

Each clamp 3 consists of a guide 4 with a block 5 fixed obliquely on the base, a clamping wedge 6 with a support pad 7 for the product installed in the guide 4, and also a counterweight 8 with a cable 9. The latter is fixed at one end to the counterweight, the other is connected to clamping wedge 6 and thrown over the block 5 of the guide 4.

The number of stops 2 and clamps 3 depends on the size of the assembled product.

The stand works as follows.

With known lifting means, the product or its segments are installed on the supporting platforms 7 of the clamping wedges 6. Under the weight of the product, which significantly exceeds the weight of the counterweight, the clamping wedges 6 with the product move along the guides 4, automatically pressing the product against the stops 2. Ta761209

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In this way, we straighten the deformed product segments and install their welding edges automatically under the weight of the product.

At the end of the assembly and editing of all segments of the product, weld its seams. +

Then, the finished product is removed from the support sites of 7 clamping wedges 6 with lifting means, and the released clamping wedges return to their original position under the action of counterweights, moving along the guides.

The proposed stand allows to reduce 1 manual labor and the number of workers employed in the assembly by providing automatic clamping and straightening of the product under the action of its weight.

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Claims (1)

Claim Stand for assembly, editing and welding of large cylindrical products, co4 holding supports for the product radially mounted on the base and clamps of the product to the stops, characterized in that, in order to increase productivity by providing automatic clamping and dressing of the product under the action of its weight, each clamp of the Product is made obliquely fixed on the base of the guide with the clamp unit0 wedge with a supporting platform for a product mounted for movement in the said guide, as well as a counterweight with a cable attached to it with one end connected 5 with its other end with a clamping wedge and a guide slung through the block.