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Laminated core assembly process method

A process method and core assembly technology, which is applied in the field of metal mold casting, can solve problems such as low production efficiency, poor sand core stability, and low positioning accuracy, and achieve high core assembly efficiency, reduce error accumulation, and ensure accuracy requirements.

Active Publication Date: 2021-04-20
XIAN AERO ENGINE CONTROLS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a stacked core assembly process to solve the problems of poor sand core stability, low positioning accuracy and low production efficiency in the existing core assembly process

Method used

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  • Laminated core assembly process method
  • Laminated core assembly process method
  • Laminated core assembly process method

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Embodiment Construction

[0077] In metal mold casting technology, the mold is used to form the appearance shape of the part, and the sand core is used to form the inner cavity shape of the part. Generally, the sand core needs to be installed on the mold, and the matching accuracy of the two must be high to produce the shape and size. Parts that meet the requirements of the product drawing. In order to improve precise positioning, the present invention designs a reference sand core to assist positioning, so as to realize high-precision matching and meet production requirements.

[0078] Specifically, core assembly is realized through the following process:

[0079] Step 1. Prepare the reference core and each sub-sand core;

[0080] Step 1.1. Design the reference core structure and sand core structure according to the casting inner cavity structure, sand core mold opening requirements, ejection requirements, core assembly operation, etc. This step can be realized by using existing conventional methods....

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Abstract

The invention belongs to the technical field of metal mold casting and particularly relates to a laminated core assembly process method. The problems that an existing core assembly process is poor in sand core stability, low in positioning precision and low in production efficiency are solved. The method mainly comprises the steps of preparing a reference core and each sub sand core, preparing a reference core positioning hole and sub sand core positioning ends and assembling the cores. A sand core structure and a positioning mode are designed by reducing the degree of freedom of the sand cores according to the spatial degree of freedom theory of an object, accurate, stable and efficient combination of the sand cores are realized without using an auxiliary tool, and the purpose of improving the casting quality and the production efficiency is achieved.

Description

technical field [0001] The invention belongs to the technical field of metal mold casting, and in particular relates to a stacking core assembly process method. Background technique [0002] In the metal mold casting process, the complex inner cavity of the shell is generally realized through the core assembly process, which requires accurate and stable connection between the sand core and the sand core, and between the sand core and the mold, and finally guarantees the dimensional accuracy requirements of the casting. [0003] Taking a shell as an example, the allowable deflection of the sand core combination is 0.5mm, such as Figure 1a , Figure 1b and Figure 1c As shown, each sub-sand core has 1 or 2 core heads, and the core head is a circular positioning platform structure. from Figure 2a and Figure 2b It can be seen that the sub-sand core b is connected to each other through the circular positioning platform and the positioning hole axis of the sub-sand core a. ...

Claims

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Application Information

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IPC IPC(8): B22C9/10
Inventor 王勇冯超卢书勇毛娜余腾飞王江云
Owner XIAN AERO ENGINE CONTROLS
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