Check ring special die for wheel type engineering machinery cartwheel

Abstract

The invention discloses a check ring special die for a wheel type engineering machinery cartwheel, belonging to the technical field of engineering machinery. The die comprises an upper die body an a lower die body; the upper die body is composed of a necking upper die body and a forming upper die body; the necking upper die body is formed by fixed connection of an upper die seat, a necking die and a guide pillar; the underhorn of the interior of the necking die is provided with a necking groove; the forming upper die body is formed by fixed connection of an upper die seat, a forming die and a guide pillar; the underhorn of the interior of the forming die is provided with a forming groove; the lower die body comprises a cylindrical annular terrace die; the inner side surface of the terrace die is connected with a guide sleeve; the lower end surface of the terrace is fixedly connected with a lower die seat; the outer side surfaces of the terrace die and the lower die seat are in sliding connection with a stepped ejector plate which is in elastic connection with a positioning plate upwards; the outer surfaces of the positioning plate and the lower die seat are fixed with annular limit plates; and the lower die seat is fixedly connected with a baseplate downwards. The invention is suitable for preparing check rings for wheel type engineering machinery cartwheels.

Description

[0001] This application is a divisional application of a Chinese invention patent application with an application date of March 5, 2009, an application number of 200910118389.9, and an invention titled "Manufacturing Process for Wheel Retaining Rings for Wheel Construction Machinery and Its Special Mold". technical field [0002] The invention relates to a special die for retaining rings, in particular to a special die for retaining rings for wheel construction machinery wheels, belonging to the technical field of construction machinery. Background technique [0003] At present, the manufacturing process usually used for wheel retaining rings of wheeled construction machinery is: blanking→rolling→welding→grinding→heating→flaring→forming; among them, the circular workpiece polished after welding is heated through expanding The mouth die is made into a truncated cone shape, and then the forming die is used for forming processing to obtain the finished retaining ring. In the pr...

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Problems solved by technology

In the production process of this retaining ring manufacturing process, there are the following disadvantages: First, in the flaring or forming process, the upper edge of the workpiece is extended and thinned due to flaring or forming, so that the weld is easy to crack, resulting in a high scrap rate of the process , and the manufacturing cost is relatively high; the second is that the surface quality of the workpiece is poor due to serious scratches

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