SU495172A1 - The method of automatically guiding the torch of the welding tractor along the joint - Google Patents

Description

one

The invention relates to the field of welding production, in particular, to methods of automatically guiding the axle of the welding tractor along the joint, and may find application in welding curved seams with a non-consumable electrode.

A known method of automatically guiding the torch of a welding tractor to a butt joint when welding with a non-welding electrode, which pre-records the position of the edges to be welded to the program carrier and then reads the program during the welding process.

The disadvantage of this method is the complexity of its implementation and low reliability due to the need to synchronize the movement of an unauthorized carrier program with the movement of the welding tractor and the filler wire.

The purpose of the invention is to simplify the method of automatically guiding a torch of a welding tractor along a joint and increasing its reliability.

According to the proposed method, at the junction of the welding tractor along the junction, a filler wire is used as a program carrier, on which information about the position of the edges to be welded is applied.

The drawing shows a diagram explaining the implementation of this method. Scheme incl. 2

Weldable products 1, sensor 2, position of the joint edges, welding torch 3, engine 4, gearbox 5, unit 6 processing the sensor signal, cassette 7 of filler wire 8, readout head 9, recording head 10, erasing head 11, gearbox 12, engine 13, engine control circuit 14 13, filler wire speed sensor 15, welding speed sensor 16.

The position of the edges of the junction of the welded products 1 is detected by the sensor 2 (for example, television). The welding torch 3 can interlace across the junction of the engine 4 through the gearbox 5. The signal from the sensor 2 is subjected to logical processing in block 6, which generates a control signal of the engine 4 depending on the magnitude and direction of deviation of the burner 3 from the joint of the welded products 1. 7 filler wire 8 is fed,

in the immediate vicinity of which the reading 9, the input 10, and

erasing 11 magnetic heads.

Mismatch signal generated

unit 6 in the form of a stand-alone voltage modulated by a certain carrier frequency is recorded onto the filler wire 8 by the recording head 10. And the erasing head I is intended for

liquid random randomly zoned areas in

filler wire material. The read head 9 is installed with the possibility of movement along the filler wire. The distance between the heads 9 and 10 is set according to the shape. Top

ST I

/,

TO.;

/ i

the distance from the joint point, the position of which is measured by the sensor, to the welding point;

Fn

- speed nodachi filler Irovolki;

V ..- welding speed (speed of the displacement of the burner relative to the products being welded);

The (2) distance between heads 9 and 10. The modulation signal read from the wire by head 10 modulates and amplifies in the block b and iodine the excitation winding of the motor 4. This way the error is eliminated due to the presence of distance II /.

Since during the welding cycle speed Vn and ci; can be changed, it is necessary to change the distance between the heads 9 and 10. The head 9 is connected through the gearbox 12 to the engine 13, which is adjusted by the circuit 14. At the inputs of the circuit 14, signals are sent from the sensors 15 II 1 6.

Ф о рмл а and 3 about b th of t and u

The method of automatic welding torch welding of a tractor but a joint at welding and a melting electrode, in which the output of the recording is recorded and the B1 edges of welding edges are applied to the program carrier and then the program is read during the welding process, about 1 L; HI and HI and with TSM that, with the aim of unrop, enn method and increase its

reliability, as a program carrier, filler wire is used on which information about the position of the edges to be welded is applied.