Powder metallurgy gear rolling densification device

Abstract

The invention belongs to the technical field of gear machining, and discloses a powder metallurgy gear rolling densification device. The powder metallurgy gear rolling densification device comprises a base, a first vertical plate, a second vertical plate, a first rotating shaft, a second rotating shaft and a third rotating shaft; the first vertical plate and the second vertical plate are arranged on the top of the base in parallel in the X-axis direction; the first rotating shaft, the second rotating shaft and the third rotating shaft are rotationally arranged between the first vertical plate and the second vertical plate; the first vertical plate is fixedly connected with the base, and the second vertical plate is slidably connected with the base in the Y-axis direction; and rolling dies are fixed to the first rotating shaft and the third rotating shaft, a gear workpiece is fixed to the second rotating shaft, and the two rolling dies clamp the gear workpiece and roll the gear workpiece in the rotating process, so that a compact layer is formed on the surface of the gear workpiece. In conclusion, densification machining of the gear workpiece is achieved in a symmetrical rolling manner, the principle is simple, and operation is convenient. In addition, the movable second vertical plate is further arranged in the whole device, so that feeding and discharging operation of the gear workpiece is more convenient.

Description

technical field [0001] The invention belongs to the technical field of gear processing, and in particular relates to a powder metallurgy gear rolling densification device. Background technique [0002] Powder metallurgy is a process technology for producing metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to manufacture metal materials, composite materials and various types of products. [0003] When using powder metallurgy to manufacture gear workpieces, the density of traditional powder metallurgy gears is lower than 7.2g / cm 3 , which leads to the problem of low strength of the gear workpiece, which greatly limits the practical application of the gear. In addition, powder metallurgy forging density can reach 7.5g / cm 3 Above, but the precision of the product is low, and follow-up processing is required to improve the precision, especially the tooth shape precision, which requires more post-proces...

AI Technical Summary

Problems solved by technology

[0003] When using powder metallurgy to manufacture gear workpieces, the density of traditional powder metallurgy gears is lower than 7.2g / cm3, resulting in gear workpieces There is a problem of low strength, which greatly limits the practical application of gears

In addition, the powder metallurgy forging density can reach more than 7.5g / cm3, but the product precision is low, and follow-up processing is required to improve the precision, especially the tooth shape precision, which requires more post-processing. Resulting in higher manufacturing costs for gear workpieces

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