Iron-based powder pressing device for gear production, and pressing method of iron-based powder pressing device

Abstract

The invention relates to the technical field of machining, in particular to an iron-based powder pressing device for gear production. The iron-based powder pressing device comprises a base and a powder adding hopper, wherein the top of the base is fixedly connected with a supporting block, the top of the supporting block is movably sleeved with a telescopic rod, the bottom of the telescopic rod isfixedly connected with a lower die, the left side of the lower die is fixedly connected with a powder adding pipe, the top of the powder adding pipe is fixedly connected with the powder adding hopper, a driving motor is fixedly mounted at the top of the powder adding hopper, the bottom of an output shaft of the driving motor is fixedly connected with a threaded rod, and the bottom of the threadedrod is fixedly connected with a powder adding head. The threaded rod and the powder adding head are arranged in the powder adding pipe, the threaded rod and the powder adding head are driven by the driving motor to rotate, iron-based powder in the powder adding hopper is conveyed downwards along the powder adding pipe under the action of the threaded rod and the powder adding head, and due to thefact that the threaded rod and the powder adding head exert downward forced acting force on the iron-based powder, the iron-based powder is prevented from being blocked in the powder adding pipe.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to an iron-based powder pressing device for gear production and a pressing method thereof. Background technique [0002] Compression molding is to use pressure to compact the powder placed in the mold to a compact structure, which is called a molding method with a certain shape and size. Pressing is one of the main processes of powder metallurgy. Its purpose is to manufacture Semi-finished products of the size and shape necessary to make the finished product, taking into account possible deformations caused by subsequent processes (sintering, shaping, etc.). The profile strength obtained after pressing should be sufficient to allow it to withstand the various intermediate processes before sintering without damage. [0003] During the use of the existing iron-based powder pressing device for gear production, the iron-based powder is transported to the mold cavity along...

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Problems solved by technology

[0003] During the use of the existing iron-based powder pressing device for gear production, the iron-based powder is transported to the mold cavity along the powder feeding pipe by its own weight for pressing. During the transportation in the powder feeding pipe, the iron The base powder will accumulate and block in the powder feeding pipe, resulting in insufficient iron-based powder added to the cavity, resulting in failure of gear pressing. At the same time, during the pressing process, sometimes excess iron-based powder will remain, affecting subsequent gears. For this purpose, we provide an iron-based powder pressing device for gear production and its pressing method

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