A method for locating circular sand cores

Abstract

The invention relates to a positioning method for ring product sand cores, in particular to a ring-shaped sand core positioning method. The method includes the following steps: the method includes the following steps: placing the pattern in the sand box and adjusting the position , pour molding sand into the sand box, after the above-mentioned molding sand is hardened, put forward the pattern, form the cavity and the positioning groove, prepare the sand core with the positioning platform, make the positioning platform of the sand core and the positioning groove in the cavity Correspondingly, it is enough to start setting the core along the positioning groove; the method of the present invention is unique, by adopting the method of guiding the positioning rod to ensure that the sand core is in the process of setting the core, which is convenient for operation and avoids problems such as positioning damage.

Description

technical field [0001] The invention relates to a method for locating sand cores of ring products, in particular to a method for locating circular sand cores. Background technique [0002] At present, in the sand casting process of ring products, the core molding method is usually adopted. The molding sand outer cavity is composed of multiple sand cores, and the sand cores and the outer cavity are fixed and positioned by positioning cores to ensure that the mold and core dimensions are accurate during the casting process. The traditional sand core fixing method adopts circular positioning. Using this kind of positioning, there are certain defects in the process of core setting and boxing: 1) Since the sand core uses a center positioning platform, the positioning platform is located at the bottom of the sand core, and it is inconvenient for the operator to observe the core setting process during the core setting process, and the core setting result cannot be accurately check...

AI Technical Summary

Problems solved by technology

With this kind of positioning, there are certain defects in the process of core setting and boxing: 1) Since the sand core uses a center positioning platform, the positioning platform is located at the bottom of the sand core, and it is inconvenient for the operator to observe the core setting process during the core setting process, and the core setting result cannot be accurately checked ;2) The sand core positioning platform is at the bottom of the sand core. During the preparation process, the positioning platform needs to increase the draft angle, and the gap between the mold and the core increases, resulting in inaccurate positioning of the sand core; 3) Since the operation process is not easy to observe, the positioning The table is easily damaged, and the size of the positioning table changes after repairing, which affects the size of the box

[0003] So far, there is no way to overcome the above drawbacks

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