Novel pipe bending tool for plate bending machine

The novel pipe bending tool for the plate bending machine comprises three ring sleeves, each ring sleeve comprises a first ring plate, a second ring plate and a third ring plate, the outer sides of the first ring plate, the second ring plate and the third ring plate are all provided with semicircular arc grooves in the circumferential direction, and the first ring plate, the second ring plate and the third ring plate are sequentially and fixedly connected end to end. When the pipe bending tool is installed on the plate bending machine, a bent pipe with the bending radius larger than 200 mm can be machined, the bending radius of the bent pipe can be controlled by adjusting the distance among the three idler wheels of the plate bending machine, convenience and rapidness are achieved, the input cost is low, multiple sets of pipe bending devices can be installed on the three idler wheels of one plate bending machine at the same time, and the pipe bending efficiency can be remarkably improved. 本实用新型涉及一种新型的卷板机用弯管工装