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Mold assembling process for small motor shell sand mold and mold assembling tool

A technology of small motors and groups, which is applied in the direction of electromechanical devices, electric components, and manufacturing motor generators. It can solve the problems of inconvenient operation and achieve the effects of simple production, sand mold protection, dimensional accuracy and high yield.

Inactive Publication Date: 2021-02-02
SHANDONG YUANTONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This fastening device needs to set a fastening frame outside the angle iron, and the fixing method of fixing the angle iron on the fastening frame by bolts is inconvenient in operation

Method used

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  • Mold assembling process for small motor shell sand mold and mold assembling tool
  • Mold assembling process for small motor shell sand mold and mold assembling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1-2 As shown, the small-sized motor casing sand molding tooling of the present invention includes a fixed angle iron 1, a fastening bolt 3 and a fastening nut 2, and the outer surface of the fixed angle iron 1 is fixedly connected with a fixed plate 5, and the fixed Fastening holes 4 are provided on the plate 5 .

[0033] The fixed angle iron 1 is formed by welding two iron plates at right angles, and the height of the fixed angle iron 1 is the same as that of the sand mold.

[0034] The upper and lower ends of the outer surface of the iron plate of the fixed angle iron 1 are respectively welded with fixed plates 5 .

[0035] The number of fixed angle irons 1 is four, arranged in a rectangular or square distribution.

[0036] The fastening bolts 3 pass through the fastening holes 4 to fix the two adjacent fixed angle irons 1 .

[0037] Adjust the length of the fastening bolt 3 according to the size of the sand mold.

[0038] The material steel plates...

Embodiment 2

[0040] Adopt the small-sized motor case sand molding process of the assembly tooling of embodiment 1, the steps are as follows:

[0041] (1) Add furan resin accounting for 1% of the mass of the original sand and a curing agent accounting for 40% of the mass of the furan resin to the original sand, mix it in a sand mixer, fill it into a mold for curing, and obtain a sand mold;

[0042] (2) After the sand mold is flow-coated with alcohol-based graphite paint, assemble it according to the process, place the assembled sand mold in the middle of the four fixed angle irons, and pass the fastening bolts through the fastening holes of the two adjacent fixed angle irons, fastened in place by the fastening nut;

[0043] (3) After the fastened sand mold is melted and cast, it is poured into fire to obtain a sand casting mold for a small motor casing.

[0044] The molding process is simple to operate, the sand core is fixed and stable during the sand molding molding process, and the dime...

Embodiment 3

[0046] Adopt the small-sized motor case sand molding process of the assembly tooling of embodiment 1, the steps are as follows:

[0047] (1) Add furan resin accounting for 1.1% of the mass of the original sand and a curing agent accounting for 60% of the mass of the furan resin to the original sand, mix it in a sand mixer, fill it into a mold for curing, and obtain a sand mold;

[0048] (2) After the sand mold is flow-coated with alcohol-based graphite paint, assemble it according to the process, place the assembled sand mold in the middle of the four fixed angle irons, and pass the fastening bolts through the fastening holes of the two adjacent fixed angle irons, fastened in place by the fastening nut;

[0049] (3) After the fastened sand mold is melted and cast, it is poured into fire to obtain a sand casting mold for a small motor casing.

[0050] The molding process is simple to operate, the sand core is fixed and stable during the sand molding molding process, and the di...

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Abstract

The invention relates to the technical field of sand mold casting molds, in particular to a mold assembling process for a small motor shell sand mold and a mold assembling tool. The mold assembling process for the small motor shell sand mold comprises the following steps that (1), resin sand is adopted for molding, and the sand mold is obtained; (2), flow coating is conducted on the sand mold witha refractory coating, then mold assembling is conducted, and the mold assembling tool is adopted for fastening; and (3), the fastened sand mold is subjected to casting and then subjected to fire pouring to obtain a small motor shell sand mold casting mold. By means of the mold assembling process for the small motor shell sand mold, operation is simple, the sand mold can be prevented from expanding, and the dimensional precision and yield of produced castings are high. The invention further provides the mold assembling tool for the mold assembling process for the small motor sand mold, the shape structure is simplified, the strength is high, the adaptability is high, and the casting cost is low.

Description

technical field [0001] The invention relates to the technical field of sand casting moulds, in particular to a small-sized motor housing sand mold assembly process and assembly tooling. Background technique [0002] At present, the motor housing sand mold assembly process used in ordinary sand casting generally uses tooling of the same size as the sand core body for assembly. This traditional casting sand mold assembly process is easily limited by the size of the sand mold when the tooling is used. It causes defects such as waste of materials and large investment in tooling. When the size of the sand mold changes and in the process of use, the sand mold assembly process is likely to cause a large amount of investment and waste; some sand molds are large and the tooling is small, and some sand molds are small and the tooling is large, which is difficult to meet the sand mold assembly process of various types. . [0003] Patent CN201120521674.8 discloses a motor housing sand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/24B22C1/22B22C3/00B22C21/14H02K15/14
CPCB22C9/02B22C9/24B22C1/224B22C3/00B22C21/14H02K15/14
Inventor 魏汝斌周仕勇马津赵桂菊
Owner SHANDONG YUANTONG MASCH CO LTD
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