SU1593864A1 - Apparatus for automatic follow-up of joint being welded - Google Patents

Abstract

The invention relates to devices for arc welding and can be used in automatic welding machines used in various fields of industry in welding overlapping seams. The purpose of the invention is to improve the reliability of the device for automatic tracking of the welded joint. The device contains two pneumatic jet sensors 1 mounted on a slider 3 connected by a lever 7 to a rod of a pneumatic cylinder 6 connected to a rod 8 of a welding torch 9 by means of an equalizer 10 vertically and horizontally to the tracking sensors 1. When approaching the tack, the pneumatic cylinder 6 is activated and lifts the sensors 1, protecting them from breakage. 1 il.

Description

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The invention relates to devices for arc welding and can be used in automatic welding machines used in various spacers when welding overlap lines, for example, sheet sheets of a gondola car.

The purpose of the invention is to improve the reliability of the device for automatic tracking of the welded joint. The drawing shows the proposed device,.

The device contains two pneumatic pneumatic sensors 1, mounted in the suspension 2 on the engine 3, guided by the pad 4 installed on one crO1SH1tein 5 with the pneumatic cylinder 6, the end of the rod of which is connected to the lever 7 acting on the slider 3 with the sensors 1.

The bracket 5 with the pneumatic-linkage mechanism is attached to the rod 8 of the welding torch 9 through to the orientor 10 setting up the helical rotation of the horizontal and horizontal position of the tracking sensors, which are connected with the electrical circuit through the welding control unit 11 with the horizontal 13 torch movements mounted on the trolley 14 welding machine.

 The device works as follows.

The machine, moving along the weld seam in the welding mode with the same geometry, with the help of two pneumatic jet sensors 1 monitors the seam edge in the vertical and horizontal directions. For this purpose, compressed air is connected to sensors 1, which, passing through the annular groove of the sensor and reflected from the part, converts an electric signal (in drive control unit 11) to turn on the support motor motors. 12 and 13, moving the burner.

At. approach to the obstacle is given a command, for example, from a path switch (not shown) to turn on the pneumatic cylinder 6. When compressed air enters the upper cavity

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The cylinder 6 of the cylinder cylinder, moving down, moves down and the end of the lever 7, interacting with the rod, the lever rotating around the axis, the second end raising the slider 3 with the sensor 1.

With sensors 1, the burner 9 remains in place, welding is continued and the weld segment is equal to the distance between the sensors and the burner, 1 is fully welded

Lifting the sensors does not affect their mutual position and location relative to the weld, which ensures automatic welding with the required mode throughout the weld,

Termination of compressed air supply to the upper part of the pneumatic cylinder and its supply to the lower part leads to raising the rod and returning the slider with the sensors to the initial position.

The use of the invention allows to exclude accidental damage to the device,

Formula of the invention

Claims (1)

1. A device for automatic tracking of welding 1.M butt containing a welding torch, a drive of its vertical movement, a block of station tracking 1kom, including track switches and pribrikov recognition sensors connected to the welding torch by means of a rod fixed to it, that, in order to ensure the reliability of the device operation when using pneumatic jet tracking sensors in it, the device is equipped with a sensor lifting mechanism relative to the welding torch, while the lifting mechanism with mounted on the boom and equipped with a setting corrector, 2, The device according to claim 1, about tl and - Ch With the fact that the mechanism of lifting the sensors is pneumatically-lever in the form of a pneumatic cylinder, a roller and a slider, while the lever is connected to the pneumatic cylinder by one end, and the other with the engine.