Core roller quick replacement device

Abstract

The invention belongs to a core roller fast exchange device for a ring rolling mill, which particularly relates to a core roller fast exchange device which drives a double-piston rotary cylinder, a clamping head and a clamping claw to rapidly clamp and loosen the core roller of the ring rolling mill. The core roller fast exchange device is characterized in that: a rotary joint (9) is fixed at thelower end of the double-piston rotary cylinder (8), a piston rod arranged over the double-piston rotary cylinder (8) is connected with the clamping head (5), a connecting bracket (7) is fixedly connected at the upper external edge of the double-piston rotary cylinder (8), a support boss (2) and the double-piston rotary cylinder (8) are connected together; a multi-paw clamping claw (1) is connected inside the support boss, the lower end of the multi-paw clamping claw (1) is movably connected with the clamping head. The core roller fast exchange device for the ring rolling mill has simple and compact structure, convenient use, high production efficiency and low labor intensity of workers.

Description

technical field [0001] The invention belongs to a quick replacement device for core rolls of ring rolling equipment, in particular to a core that uses workshop compressed air as power to drive double-piston rotary cylinders, clamping heads, and clamping claws to quickly clamp and loosen the core rolls of ring rolling equipment. Roll quick change device. Background technique [0002] In the rolling production of ring parts in ring rolling equipment, the life of the core roll is a weak point of the ring rolling machine. Because the loss of metal is mainly the punching block when the blank is punched and the burning loss when heating. The larger the punching diameter of the blank, the greater the metal loss. Therefore, the smaller the diameter of the core roller, the better, but the smaller the diameter of the core roller, the shorter the service life of the core roller shaft, and the more frequent the replacement. In addition, when producing rings with special-shaped cross-...

AI Technical Summary

Problems solved by technology

Therefore, the smaller the diameter of the core roller, the better, but the smaller the diameter of the core roller, the shorter the service life of the core roller shaft, and the more frequent the replacement

In addition, when producing single-piece and small-batch rings with special-shaped cross-sections, the core roll needs to be replaced frequently

[0003] At present, the domestic ring rolling equipment is relatively simple in general, and there is no quick replacement device for the core roll. The core roll shaft is connected to the mandrel box by bolts. The disadvantage is that the production efficiency is low, the labor intensity of the workers is high, and it is not suitable for rolling many varieties and small batches. and shaped rings

Images