Hanging structure and hanging method of 3D printing sand core

Abstract

The invention provides a hanging structure and hanging method of a 3D printing sand core. The hanging method is implemented through the hanging structure, and comprises the following steps of in the design process of the 3D printing sand core, a lifting hole groove is reserved in the sand core, wherein the lifting hole groove is located at the middle upper part of the sand core, and the opening ofthe lifting hole groove is located on the upper surface of the sand core; the lifting hole groove is composed of a lifting appliance loading hole and a lifting appliance supporting groove, the lifting appliance loading hole extends into the sand core, and the lifting appliance supporting groove is out of position with the lifting appliance loading hole but communicates with the tail end of the lifting appliance loading hole; and the lifting hole groove is matched with a lifting appliance, wherein the lifting appliance enters the lifting hole groove from the lifting appliance loading hole andthen is clamped and fixed through the lifting appliance supporting groove, and finally the sand core is lifted through lifting the lifting appliance by external lifting equipment. According to the hanging structure and hanging method of the 3D printing sand core, the problem that a sand core lifting structure cannot be pre-buried in the lifting process of a large-sized 3D printing sand core can beeffectively solved, the lifting hole groove is matched with the the lifting appliance, the lifting process is safe and stable, lifting is convenient, and popularization and utilization can be facilitated.

Description

technical field [0001] The invention belongs to the field of casting processing, and relates to a hanging structure and a hanging method of a 3D printing sand core. Background technique [0002] In recent years, sand mold 3D printing technology has been rapidly applied in the field of casting processing, and has become an important technology for casting to shorten the development cycle and reduce development costs. Compared with the traditional sand mold preparation process, the most important feature of sand mold 3D printing is a digital moldless casting technology. Since it is impossible to directly pass through the pre-embedded core bone or hanging device, the hoisting of 3D printed sand molds and sand cores is mainly through slings or sand handles designed on the outside of the sand mold. However, for sand core lifting, there are often problems such as damage to the forming surface and unstable center of gravity when lifting with a sling. On the one hand, the sand han...

AI Technical Summary

Problems solved by technology

[0003] The invention focuses on solving the problem that the sand core lifting structure cannot be pre-embedded during the lifting process of large-scale 3D printing sand cores

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