SU1389964A1 - Apparatus for arc welding with transverse vibrations of torch - Google Patents

Abstract

The invention relates to welding equipment, in particular, to devices for arc welding with transverse vibrations of a welding torch, and can be used in the engineering industry for arc welding in a gas-welding environment with a non-wear electrode. The purpose of the invention is to provide the ability to adjust the amplitude of oscillations.

Description

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burner during operation of the device. The device consists of a bracket 1, in the hub of which the burner 2 is installed with the possibility of swinging, which through the yoke 3 and the connecting rod 4 is connected to the crank 5, the shaft 6 is mounted eccentrically in the hub of the drive gear. At one end of the shaft 6 is installed crank 5, and on the other - the second crank 8, which is included in the slot of the sleeve 9j attached to the stupi1

The invention relates to welding equipment, in particular to devices for arc welding with transverse vibrations of a welding torch, and can be used in the engineering industry for arc welding in shielding gas using a non-melting electrode with electrodes.

The aim of the inventions is to provide the possibility of adjusting the amplitude of oscillations of the burner during operation of the device.

FIG. 1 shows the proposed device, general; in fig. 2 is a view A of FIG. one; in fig. 3 - .ra bb in fig. one; in fig. 4 is a section bb of FIG. 3; in fig. 5 is a section of YYD in FIG. four; in fig. 6 is a schematic diagram of the device; 7 - slits on the hub.

The device consists of a bracket 1, in the hub of which the burner 2 is installed with the possibility of swinging, which through the yoke 3 and the connecting rod 4 is connected to the crank 5.

The shaft 6 is installed eccentrically in the hub of the drive gear 7. At one end of the shaft 6 is installed the crank 5, and on the other - the second crank 8, which fits into the slot of the sleeve 9 fixed on the hub of the gear 7. The sleeve 9 is supplied with a fork 10 mounted obliquely groove 11, made in gear 7. On the outer groove of sleeve 9, a slider 12 is mounted, which is installed with the possibility of reciprocating movement along the direction 13 by means of a screw 14.

The slots on the hub of gear 7 (there are two) are grooves

Gear wheel 7, Sleeve 9 is fitted with a fork U, contacting with a slanting groove 11, made in gear 7. To change the amplitude of the burner oscillations during its operation, it is necessary to change the eccentricity of the position of the shaft 6 with the crank 5 relative to the axis of the drive gear 7. With this screw -14 move the slider 12 along the guides of the base 13. 7 Il., 1 tab.

on the cylinder (Fig. 7). They must be matched to the shape of the stops on the plug sleeve 9. In the simplest case, the grooves may be rectangular in shape and inclined to the axis of the hub.

The device works as follows.

Q When the gear wheel 7 rotates, the shaft 6 rotates with crank 5 and the movement through the connecting rod 4 and core 3 is transmitted to the welding torch 2. To vary the amplitude of the oscillating;

The burner requires changing the eccentricity of the position of the shaft 6 with the crank 5 relative to the axis of the drive gear 7. To do this, use the screw 14 to move the slider 12 along the guides 13

Q base. Accordingly, the sleeve 9 moves, the plug 10 of which engages with the oblique groove 11 in the gear wheel 7. The sleeve 9 receives a rotational movement, which is transmitted through the crank 8 to the shaft 6.

FIG. 3 shows the position of the plug 10 in slot II, which provides the average value of the amplitude of oscillation between the bar and min.

The sleeve 9 with the fork 10 is in contact with the hub of the gear 7. The sleeve 9, the gear 7 and the shaft 6 with the cranks 8 and 5 rotate together with the rotation 5 of the gear 7 from the drive gear and transmit the movement to the connecting rod.

The sleeve 9 relative to the hub of the gear 7 rotates only when 0 rotates the screw 14 acting on the slider 12 connected to the sleeve 9.

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Crank 8 is required in order to transmit rotation from sleeve 9 (as it moves relative to the hub of the six-turn 7) to the shaft 6 and crank 5, which sits at the other end, connected to the connecting rod 4. the axles of the crank pin 5 relative to the axis of the gear 7. The axle of the crank pin 5 and the axis of the gear 7 are also a crank in the burner swing mechanism. Crank 8 must be made integral with shaft 6 (or fixedly connected to it) in the form of a crankshaft.

The shaft 6 is the axis of rotation of the crank. When the sleeve 9, into the slot of which the crank neck 8 enters, rotates under the influence of the slide, the sleeve slot wall acts on the crank neck and the crank rotates, rotating the shaft 6. The crank neck simultaneously rotates and slides along the slot.

If there is no rotation of the screw 14, then the slider is stationary and the sleeve 9 is fixed by it in the axial direction. In the radial direction the sleeve and gear wheel are fixed by inclined slots.

Screw 14 can only be rotated by acting on its handwheel (manually or by some kind of mechanism). It cannot rotate when applying a force to the slider, as the thread will not allow the screw to rotate from axial force due to the low reverse efficiency of the thread.

The eccentricity can vary from 0 to 2 hours (Fig. 2).

To ensure an eccentricity of 0 to 2 hours, it is necessary to turn the sleeve 90 degrees. This is the limit state. But to ensure the requirements or the design possibilities in a particular device, it is not necessary to rotate it, it can be set to mea 90,

V§§mgzhshvv amplitude kvl§ @ zni gz pglki eshe t s ngpiyie @ m @ ed & crust1 (rts 6 | 11411114), dpina atatuna L, output no zaggy d (Fig. 6). With mximal1 but the required amplitude of the cholesterol burner u move the screw U depends on the selected size.

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on the axis of the pins, gears of inclined grooves (Fig. 7) i For example, in a particular product, mm, R 20 mm, 8 mm, mm, mm, mm are adopted for driving the nozzles.

With a full rotation of the gear with the crank (mm) at 360 °, the rocker arm (RK) rotates at ot, 48. The torch (R) is turned at the same angle.

Oscillation amplitude of burner A,

2Rp sin 18 mm (A, A, 15 mm magnitude of the amplitude of the oscillation of the burner for technical requirements).

With a full rotation of the gear with a crank (R mm) 360 turn of the rocker arm is 26. AMA 2K,

Plyuda oscillations burner sin - 10 mm,

The length of the inclined grooves along the axis of the gear hub is taken mm. Then the screw stroke for changing the eccentricity of Lg is 14 mm. Changing the angle of rotation of the sleeve is proportional to its horizontal movement.

The dependence of the numerical values of the amplitudes of the torch oscillations on the change in the length of the adjusting screw is given in the table.

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40

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Comparison and veterinary, preparatory production, and even without the welding process, it is possible to vary the oscillation amplitude of the welding torch according to the required conditions.

FIG. 2

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Claims (1)

SUMMARY OF THE INVENTION A device for arc welding with transverse oscillations of a burner, comprising a drive gear, a shaft, a crank mechanism, the crank of which is mounted on the shaft end, characterized in that, in order to provide the possibility of adjusting the amplitude of the oscillations of the burner during operation of the device, it is equipped with a bracket with a hub, a sleeve made with a fork, a slot and a groove mounted on the other end of the shaft in the slot of the sleeve with a crank, a slider with protrusions located in the groove of the sleeve, guides for shifting the slide and the adjusting screw, the crank mechanism is made with a connecting rod and beam, the drive gear is made with a hub and an oblique groove in which it is located 10, the plug, the sleeve is fixed on the hub of the drive gear, the burner is fixed in the hub of the bracket and connected to the beam, and the shaft is mounted eccentrically to the drive gear. Type A bB Fig 2 G FigM FIG. 5 6