RU139368U1 - INSTALLATION FOR WELDING IN A CONTROLLED ATMOSPHERE - Google Patents

Abstract

1. Installation for welding in a controlled atmosphere, containing a vacuum chamber with a cover, a table designed to install the device with the item to be welded, made with the possibility of placement in a vacuum chamber, and a welding head, characterized in that it is equipped with a trolley on a wheeled drive, the lid of the chamber is pivotally mounted on the trolley, the table is mounted on the lid, the welding head is mounted with the possibility of longitudinal movement on the console mounted with the possibility of vertical movement on the carriage, cat paradise is mounted for transverse displacement in guides mounted on kryshke.2. Installation according to claim 1, characterized in that flanges are installed in the camera body, in which gloves used for manual welding are hermetically fixed.

Description

The utility model relates to equipment for welding in a controlled environment and can be used for automatic and manual welding of products of various shapes and sizes.

A known installation for welding in a protective gas environment, comprising a welding chamber with a loading hatch and a lid, a device for heat treatment and a welding torch located in the welding chamber. The cover has a viewing window. A pipe for supplying inert gas to the cavity of the chamber, a pipe for pumping the chamber and elastic gloves sealed in the sockets of the welding chamber are installed in the welding chamber.

During the operation of the installation, the items to be welded and, if necessary, welding materials, are placed inside the welding chamber through the loading hatch and the lid is closed. After that, air is pumped out from the welding chamber through a pipe. In the case of inert gas welding, the chamber is filled with shielding gas through a nozzle. Welding is done by the welder using elastic gloves and a welding torch, observing the welding process through the inspection window. After welding, the welded products, if necessary, are subjected to heat treatment in a device for heat treatment. Products for this are placed in a device for heat treatment.

(see RF patent No. 2294821, CL B23K 9/16, 2007).

As a result of the analysis of the implementation of the known installation, it should be noted that it is intended only for manual welding and does not involve the manipulation of the welded product during the welding process, which significantly limits the scope of its use.

A device is known for welding circular seams of cylindrical products, containing a vacuum chamber in which a welding head is installed, as well as a device for installing welded products, made in the form of a multi-position manipulator driven into rotation by a reversible drive located outside the chamber. In the manipulator, at each position, spindles are fixed on which gears are mounted that are meshed with the central gear. A support disk with spring-loaded centers for fastening to the spindles of the welded products is movably mounted on the guides of the manipulator. A friction element is mounted on the central gear wheel, providing a value of resistance to rotation of the spindles greater than the moment of resistance to rotation of the manipulator.

To carry out welding of products with an open vacuum chamber, the devices to be welded are installed in the fixture. After sealing the chamber and evacuating it, the welding head is guided to the welded joint. By turning the manipulator one position to the welding head, the joint of the item to be welded is brought in, the product is rotated and the joint is welded. The manipulator is turned a step, as a result of which the joint of the next product is brought to the welding head. Turn it on and weld the joint. Similarly carry out welding of all products. The chamber is depressurized, it is opened and the welded products are removed. The welding process is completed.

(see RF patent No. 2417144, B23K 37/04, 2011) is the closest analogue.

As a result of the analysis of the known installation, it should be noted that it provides welding of only one or several types of products of small dimensions. The possibility of expanding the products placed in the chamber provides welding of only circular seams, therefore, this installation has low functional capabilities.

The technical result of this utility model is the development of a facility for welding in a controlled atmosphere, characterized by enhanced functionality by providing high-quality welding in both manual and automatic modes of products with a wide range of dimensions and weights, including complex shapes.

The specified technical result is ensured due to the fact that in a installation for welding in a controlled atmosphere containing a vacuum chamber with a cover, a table designed to install the device with the item to be welded, which can be placed in a vacuum chamber, as well as a welding head, is new, that the installation is equipped with a trolley on a wheeled drive, a camera lid is pivotally mounted on the trolley, the table is mounted on the lid, the welding head is mounted with the possibility of longitudinal movement on the console, see mounted with the possibility of vertical movement on the carriage, which is mounted with the possibility of lateral movement in the guides mounted on the cover, while flanges are installed in the camera body, in which gloves used for manual welding are hermetically fixed.

The essence of the utility model is illustrated by graphic materials on which:

in FIG. 1 - installation for welding in a controlled atmosphere, the vacuum chamber in the closed position;

in FIG. 2 - installation for welding in a controlled atmosphere, the vacuum chamber in the open position.

Installation for welding in a controlled atmosphere is a permanently installed vacuum chamber 1, equipped with a retractable cover 2. On the camera body there are portholes 3 for monitoring the welding process, as well as a sealed hatch (not shown) for entering the communication chamber cavity.

The installation includes a self-propelled trolley equipped with wheels 5. The trolley can be mounted on rails 6. A cover is pivotally mounted on the trolley 2. A table is fixed on the lower (in the drawing plane) part of the cover 7. A fixture 8 is removably placed on the table 7 for installation of the item to be welded (not shown). The device has the ability to rotate about a vertical axis, as well as the ability to tilt about this axis. Such devices are known and there is no need for a detailed description thereof.

On the upper (in the drawing plane) part of the lid there are horizontal guides 9 on which the carriage 10 is mounted with a possibility of movement. On the carriage 10 there are vertical guides on which a console 11 supporting the welding head 12 is mounted with the possibility of vertical movement. The welding head is mounted on on the console of longitudinal guides and has a possibility of movement on them.

The design of the installation provides for manual welding, for which purpose flanges 13 are provided in chamber 1, on which tight gloves 14 are fixed.

To ensure the creation of a given atmosphere in the cavity of the chamber 1, an inlet 15 for supplying an inert gas, for example argon, is provided in the chamber wall.

Naturally, the installation is equipped with standard drives that implement the movement of nodes specified in the description. The installation is equipped with a standard vacuum chamber cavity vacuum system 1. The operation of the installation can be controlled from a control panel (not shown, or from a program control system (not shown).

Naturally, the cover 2 and the end face of the chamber 1, to which it is pressed, are equipped with seals to ensure the tightness of their docking.

Installation for welding in a controlled atmosphere works as follows.

Install the fixture, 8, on the table 7, on which the item to be welded is placed. The welding head 12 is prepared for operation, for example, a welding wire is threaded into it. In case the welding procedure involves manual welding, a device for manual welding is placed in a regular place in the chamber.

The trolley 5 is moved to the chamber 1 until the lid 2 contacts the end of the chamber 1. Given that the lid 2 is pivotally mounted on the trolley 5, the base surface of the lid is self-mounted relative to the end of the chamber upon contact with it. They press the lid to the end of the chamber, ensuring the tightness of the joint.

Turn on the vacuum system and vacuum the cavity of the chamber 1.

An inert gas is supplied through the inlet 15 into the chamber cavity.

Manually or automatically carry out welding of the product. In the process of welding the product in the most general case, the fixture 8 can rotate the product about a vertical axis and rotate it. The welding head 12 can move horizontally on the console 11, which can move vertically on the carriage 10, and the carriage 10 can move in the transverse direction relative to the cover 2. When coordinated movement of the mechanisms provides welding products in a three-dimensional coordinate system.

At the end of the welding, the chamber 1 is depressurized, by moving the trolley 5, the welded product is removed from the chamber cavity and removed from the fixture 8. The welding process is completed.

The device to be welded is installed on the fixture 8, then the welding process is carried out similarly to the above.

The installation can be used for manual, automatic and combined welding of longitudinal, circumferential, circular seams of a wide range of products, for example, fittings, containers of various shapes, frame structures, etc.

Claims (2)

1. Installation for welding in a controlled atmosphere, containing a vacuum chamber with a cover, a table designed to install the device with the item to be welded, made with the possibility of placement in a vacuum chamber, and a welding head, characterized in that it is equipped with a trolley on a wheeled drive, the lid of the chamber is pivotally mounted on the trolley, the table is mounted on the lid, the welding head is mounted with the possibility of longitudinal movement on the console mounted with the possibility of vertical movement on the carriage, cat paradise is mounted for transverse displacement in guides mounted on the lid. 2. Installation according to claim 1, characterized in that flanges are installed in the camera body, in which gloves used for manual welding are hermetically fixed.

Images