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Precision casting mold for overlap-connecting ball and preparation method

A technology of precision casting and splicing, which is applied in the field of metal precision casting, can solve the problems such as the inability of the inner model to be demolded, and achieve the effects of solving cumbersome processing procedures, eliminating potential safety hazards, and increasing strength

Pending Publication Date: 2018-05-04
FOSHAN GAOMING LIGANG PRECISION CASTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only one mold can be used, which eliminates the welding process in the existing process, simplifies the processing process, and also solves the technical problem that the inner model cannot be demolded

Method used

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  • Precision casting mold for overlap-connecting ball and preparation method
  • Precision casting mold for overlap-connecting ball and preparation method
  • Precision casting mold for overlap-connecting ball and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 : Precision casting mold for connecting ball

[0038] like Figure 1-6 As shown, the precision casting mold for connecting balls includes an upper outer mold 1, a lower outer mold 2, a six-sided inner mold core 3, and a concentric limit block 4; the upper outer mold is fixed on the lower outer mold , the upper external mold and the lower external mold are enclosed to form a six-sided external cavity that matches the shape of the connection ball A; the lower external mold is provided with a bottom through hole 21 that matches the shape of the concentric limit block, The concentric limiting block is inserted into the bottom through hole, and extends into the six-sided outer cavity, and the bottom of the six-sided inner mold core abuts on the concentric limiting block, so that the six-sided inner model The core is concentrically installed in the six-sided outer mold cavity; the six-sided inner model core includes a central core-pulling 31, four corner core-pul...

Embodiment 2

[0046] A method for preparing a precision casting splicing ball, which is processed by using the precision casting mold of the splicing ball of embodiment 1; specifically comprises the following steps:

[0047] Steps for injecting wax molds: Install the splicing ball precision casting mold of Example 1 on the wax injection machine, see Example 1 for the specific structure, then spray the wax into the mold cavity, and remove the mold after the wax is solidified and formed. Get the splicing ball wax model;

[0048] The demoulding process is as follows: first disassemble the upper external mold and the lower external mold to obtain the six-sided inner mold core and the wax mold covered on the surface of the six-sided inner mold core, and then extract it from the through hole on the top or bottom of the wax mold. Pull the center core, then extract the four side cores one by one, and finally extract the four corner cores one by one, and then get the spliced ​​ball wax model B.

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Abstract

The invention discloses a precision casting mold for an overlap-connecting ball and a preparation method. The precision casting mold comprises an upper outer section mold, a lower outer section mold,a hexagonal inner mold core and a concentric limiting block; the upper outer section mold is fixed to the lower outer section mold; the lower outer section mold is provided with a bottom through holewhich is matched with the concentric limiting block in shape; the concentric limiting block is inserted into the bottom through hole and extends into a hexagonal outer mold cavity; the bottom of the hexagonal inner mold core leans against the concentric limiting block and comprises a middle loose core, four corner loose cores and four side loose cores; the four corner loose cores and the four sideloose cores are both slidably installed at the four sides of the middle loose core by matching of sliding chutes and sliding bars; and the area of the cross section of the concentric limiting block is larger than that of the cross section of the middle loose core. The precision casting mold for the overlap-connecting ball disclosed by the invention can realize integrated molding of the overlap-connecting ball in one mold, solves the problem about cumbersome machining procedures, greatly enhances the strength of an integrally-formed overlap-connecting ball, and eliminates the potential safetyhazards.

Description

technical field [0001] The invention relates to a metal precision casting technology, in particular to a precision casting mold for connecting balls and a preparation method thereof. Background technique [0002] The connecting ball is a kind of connecting claw, which is an important tool for connecting curtain walls. With the development of new technologies, it is widely used in the construction of curtain walls of various buildings, especially for the frame structure of temporary exhibitions. The connecting ball is mainly used as a supporting barge joint, and the load is transmitted to the steel structure or other main structures through the connecting ball. Its mechanical properties are particularly important here, and it is an important accessory to connect the curtain wall. [0003] However, if figure 1 As shown, since the connecting ball has six planes, and each plane has some mounting holes or fixing holes of different sizes, in the existing processing and forming pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/24B22C9/04B22C7/02B22C9/10
CPCB22C7/02B22C9/04B22C9/103B22C9/24
Inventor 王立峰吴月庆
Owner FOSHAN GAOMING LIGANG PRECISION CASTING CO LTD