FIELD: process engineering.
SUBSTANCE: invention relates to welding and can be used for securing of hemispherical structure parts at welding of circular seams. This device comprises reduction gearbox with inclined rotational axis and built-in current feed device with sliding contact and positioning device of hemispherical structure of aluminium alloy arranged to spin at reduction gearbox driven shaft. Reduction gearbox conical gears are engaged via mid teeth pitch diameter with axial squeezing without radial and lateral clearances by means of springs fitted coaxially with rotary pins coaxially with conical gears. Said current feed device with sliding contact is insulated by appropriate sleeves fitted in conical gear hubs, reduction gearbox housing and at drive axle.
EFFECT: higher quality of the weld, decreased residual strain internal stress of welded parts.
3 cl, 1 dwg
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|
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| WELDING HEAD | 1990 |
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