DE1013496B - Device for welding chain links - Google Patents

Description

GERMAN

The invention relates to an automatic ketfeen welding machine for the casting of limbs !, in particular made of aluminum or magnesium alloy or high-alloy steel under inert gas, with a retaining saddle for the chain link. Abandonment of the invention It is therefore 'to the all-round' of bulky and movable tools and holding devices chain link ends surrounding the welding point completely and reliably Bring surrounding protective gashiille with reasonable effort. Automatic chain welding machines with protective gas blowers have not become known so far, and the invention overcomes the aforementioned the contrary, the considerable constructive concerns in a surprisingly simple manner by that the outlet openings for the protective gas are not, as is the case with simple welding machines for connecting open lengths is known, in the movable clamping devices or in the unsuitable for this Arranged welding electrodes, but in the stationary, the chain link supporting saddle are incorporated. This supply of the protective gas according to the invention can also be used with existing ones inert gas-free. Chain saw welding machines can be retrofitted without losing valuable parts Must be replaced and without the observation of the welding point through the inert gas supply is difficult.

In the case of the protective gas supply according to the invention, a very thin protective gas envelope which nevertheless completely isolates the welding point is produced, which in a further embodiment of the invention can be built up with negligibly low gas loss due to its small volume, so that a substantial gas saving is achieved through the use of known shut-off devices can be achieved in the protective gas supply lines, the shut off of the following in response to the control devices of the Sahweißautomaten, such as a device for placement of electrodes, the protective gas flow after exiting up the fusion ^ o transition until the beginning.

The invention is illustrated using the exemplary embodiment shown in the figures. It shows

Fig. 1 the device in side view, Fig. 2 in front view,

Fig. 3 the device from above.

The chain link 5 sits in a groove-shaped recess 6 in the saddle 7 during welding.

The four white electrodes 9 transmit the current required for welding the chain link. According to the invention, a hose line 10 leads device for welding
of chain links

Applicant:

Meyer, Roth & Pastor,
Cologne-Raderberg, Raderberger Str. 202

Dipl.-Ing. Siegfried Förster, Düsseldorf,

and Wilhelm Wattler, Cologne-Zollstock,

have been named as inventors

from a helium or argon gas bottle to an attachment 11 and is through the holes 12 the Gas jet-like against the welding point of the chain link. A valve not shown is over a lever and eccentric actuated from the control shaft, opens briefly before the beginning and sahliess briefly after welding has ended, the gas jet.

Claims (2)

PATENT CLAIMS: 1. Kettenschweißautoniat for closing links, especially made of aluminum or Magnesium alloy or high-alloy steel, under inert gas with a retaining saddle for the Chain link, characterized in that the outlet openings for the protective gas in the saddle are incorporated. 2. Apparatus according to claim 1, characterized in that shut-off directions in the Inert gas feed lines are provided, which are dependent on the control devices of the Automatic whitening machines, e.g. B. a device for placing electrodes, the inert gas flow after the end of a welding process, shut off until the beginning of the next.