SU182810A1 - CAMERA FOR MANUAL WELDING IN THE CONTROLLED ATMOSPHERE - Google Patents

Description

Chambers for manual welding of chemically active materials in a controlled atmosphere are known, comprising a housing, a gas supply and vacuum device, windows, a valve for maintaining gas pressure inside the chamber.

The proposed camera for manual welding differs from the known ones in that it is equipped with a mechanism for horizontal rotation of the product being welded and a mechanism for rotating the body relative to the vertical axis at an angle.

This embodiment of the camera ensures the rotation of the product being welded to the spatial position determined by the requirements of the technology in accordance with its configuration without opening the lid.

The drawing shows the scheme of the proposed camera for manual welding in inert gases.

The housing 1 of the chamber, designed as a short cylinder with a bottom, and the cover 2 in the shape of a truncated cone can be tilted by a special mechanism at an angle of up to 90 ° from the vertical position. In the conical layout there is a plate (shown in dotted line in the drawing) to rotate the product, which can be fixed in any position with two clips 5. The combination of these two mechanisms makes it possible to place the product in almost any spatial position.

The camera body is mounted on the support frame 4, on which is fixed a worm gear (with a conical support) manual gearbox 5, the schen engages gear with a toothed worm gear sector 6, fastened through the axis 7 on the bottom of the chamber, which allows the camera to tilt to the desired floor Rotating the knob 8.

The lid 2 of the chamber is suspended on two levers 9. It is opened and closed using a mechanism consisting of a worm gear (with a conical pair) of a manual gearbox 10 and a worm gear sector 11.

The seal between the cover and the housing is created by a rubber ring and hinged bolts with nuts. The force on the handles 8 and 12 of the lifting mechanisms of the chamber and the krynck does not exceed 10 kg.

An adjustable safety valve 13 is installed on the lid, which maintains the required pressure inside the chamber (it must be slightly higher than atmospheric pressure so that no atmospheric air leaks into the chamber). When the inert gas expands, due to ignition during the welding process, the valve 13 is activated and excess gas is released into the atmosphere. Due to this, the camera can not create high pressure. On the cover are also located manovacimeter 14 and manometric lamp 15.

Three pairs of gloves and six viewing windows 16 are positioned in such a way that they can be welded and observed at any spatial position of the chamber.

Welding is performed by a water-cooled torch with a non-consumable electrode.

Before starting work, the product and the additive material are loaded into the chamber. The product is attached to the faceplate. Then the chamber is closed, folding bolts are pressed in, the cavities of the sleeves are sealed with plugs, air is evacuated from the chamber and it is filled with an inert gas.

Getting to work, remove the plugs 1 and wear special gloves on the gloves.

Subject invention

The chamber for manual welding in a controlled atmosphere of chemically active materials contains: ash, and a housing with a lid, characterized in that, in order to ensure the rotation of the product to be welded to spatial polishing, determined by the requirements of technology in accordance with its configuration without opening the lid it is equipped with a mechanism for horizontal rotation of the welded product and a mechanism for rotating the body relative to the vertical axis at a certain angle.