Tool for combining reverse-inclination resin sand mold core and combining and assembling method of tool

A technology of backslope and resin sand, which is applied in the direction of cores, molds, mold components, etc., can solve the problem that two cores cannot be loaded, and achieve the effect of high combination accuracy

Active Publication Date: 2022-08-09
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Abstract
  • Description
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Problems solved by technology

And for the core with reverse slope, such as figure 2 As shown, no matter whether the first core 1' is installed first or the second core 2' is installed first, the two cores cannot be loaded into the outer mold 3'

Method used

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  • Tool for combining reverse-inclination resin sand mold core and combining and assembling method of tool
  • Tool for combining reverse-inclination resin sand mold core and combining and assembling method of tool
  • Tool for combining reverse-inclination resin sand mold core and combining and assembling method of tool

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Embodiment Construction

[0031] The method of the present invention will be described below through specific embodiments, but the present invention is not limited thereto, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

[0032] like Figure 3-4 As shown, the present invention provides a tooling for the combination of reverse slope resin sand cores, which is used to install the first core 1 and the second core 2. The tooling is composed of upper and lower layers, including an upper disc 10 and a lower disc 20 and the support column 30 between them. The diameter of the upper disk 10 is larger than the diameter of the lower disk 20 . The specific size of the diameter of the upper disk 10 and the lower disk 20 can be determined according to the size of the core to be assembled. The distance between the upper disk 10 and the lower disk 2...

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Abstract

The invention discloses a reverse-inclination resin sand mold core combination tool and a combination assembling method thereof.The combination tool is used for installing a first mold core and a second mold core and comprises an upper-layer disc, a lower-layer disc and a supporting column located between the upper-layer disc and the lower-layer disc, and the diameter of the upper-layer disc is larger than that of the lower-layer disc; a plurality of opening grooves horizontally extending towards the center direction are formed in the outer side of the upper-layer disc in the circumferential direction, and the multiple opening grooves enable the upper-layer disc to form a plurality of sector structures. The mold core pre-combined through the tool has high combination precision, the whole mold core can be accurately assembled into an outer mold, precise combination and assembly of the reverse-inclination resin sand mold core and an outer mold sand mold are achieved, and the tool can be applied to production of complex aluminum alloy casing castings.

Description

technical field [0001] The invention belongs to the technical field of resin sand core grouping, and in particular relates to a tooling for combination of back-slope resin sand mold cores and a combined assembly method thereof. Background technique [0002] With the improvement of the performance of turboshaft aero-engines, the structural integration and performance requirements of the aluminum alloy casing of the engine air intake system are getting higher and higher. In the early days, the external pipelines and fuel tanks of the engine were integrated inside the parts, which were realized by casting methods. The integral forming of such complex parts, the core and the combination of the core are the key to realize the casting and forming of the pipeline and cavity structure. This type of casting generally adopts the precision resin sand casting method in China, and the internal structure of the part determines the structure of the core. For cores with positive slope, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/10B22C9/24
CPCB22C9/108B22C9/103B22C9/24
Inventor 洪润洲范学燚左强周永江
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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