Penetrating rod for carburizing, quenching and mounting of ring-shaped parts

Abstract

The invention provides a penetrating rod for carburizing, quenching and mounting of ring-shaped parts, which is convenient to mount, is accurate to position and does not affect quality of components. The penetrating rod comprises a penetrating rod main body, a blocking head and a supporting rod which are integrally arranged at the two ends of the penetrating rod main body, respectively, wherein upper and lower end surfaces of the penetrating rod main body are cylindrical surfaces which are outwards bulged, respectively; two side end surfaces of the penetrating rod main body are arranged on a plane. According to the invention, a contact mode of the existing H-shaped penetrating rod and parts is changed into arc-surface contact of the penetrating rod main body and the parts from point contact, so that contact areas between the penetrating rod and the parts are increased, local stress of holes in the parts is reduced, and indentations on the parts are avoided; due to arc-shaped setting of the cylindrical surfaces, one penetrating rod disclosed by the invention can be used to replace two H-shaped penetrating rods in the prior art to realize mounting of large ring-shaped parts, so that mounting and hanging for each penetrating rod are more convenient, and positioning is also more accurate.

Description

technical field [0001] The invention relates to a heat-treated piercing rod, in particular to a carburized and quenched piercing rod for ring parts. Background technique [0002] In the prior art, for batches of annular parts, when carburizing and quenching parts are prepared and clamped, the following methods are used: figure 1 The H-type piercing rod 6, such as figure 2 As shown, part 4 is worn and lifted from the inner hole, and installed on the shelf of charging tray 5. When clamping a large part with a large inner hole and an asymmetric structure, the H-shaped piercing rod 6 makes point contact with the inner hole of the part 4. After high-temperature carburizing and quenching, it will cause indentation on the inner hole of the part 4, affecting the quality of the part. And in the prior art, when adopting H-type piercing rod 6 to clamp large-scale annular parts, two H-type piercing rods 6 need to be used side by side, and the loading, unloading and hoisting process i...

AI Technical Summary

Problems solved by technology

When installing a large part with a large inner hole and an asymmetric structure, the H-shaped piercing rod 6 makes point contact with the inner hole of the part 4. After high-temperature carburizing and quenching, it will cause indentation on the inner hole of the part 4, affecting the quality of the part

And in the prior art, when using H-shaped piercing rods 6 to clamp large-scale ring parts, two H-shaped piercing rods 6 need to be used side by side, and the loading, unloading and hoisting process is very inconvenient, which affects production efficiency

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