Screw rolling mill for production of lorry journals

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Automatic mill АСПВПЦ-130 realizes technological process of hollow journals of back axle. It can provide production of different type of solid and hollow billets with variable outer profile.

The billet manufactured in the press as a short flanged tube is used during production of car journals of back axle. The part of journal adjacent to flange itself with the accuracy corresponding to the accuracy of preliminary mechanical treatment is formed in the mill.

Advantages of process and equipment are:

• minimizing an initial cross variation in wall thickness;
• simplicity of equipment (absence of complex program devices and actuators operating ass. to program);
• tool simplicity;
• accuracy of manufacturing products in outer diameter of ±0,25 mm.

The mill (see Fig. on turn) consists of a working stand, a drive of work rolls with mechanism of driving mandrel with a billet up, inlet side with devices of a billet feed and mandrel charging, two manipulators for charging the billets and discharging the finished products and a cutting device for facing the journals.