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Connecting rod joint wax mold forming method

A molding method and wax mold technology, which are applied in casting molding equipment, molds, cores, etc., can solve the problems of low wax mold accuracy, difficulty in demoulding wax molds, and high rejection rate, so as to improve the splicing efficiency and improve the gap. The effect of processing efficiency and easy operation

Pending Publication Date: 2021-12-07
谷城石花维福机械有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The object of the present invention is to provide a wax mold forming method for connecting rod joints in view of the deficiencies in the prior art, which solves the problems in the prior art that the wax molds are difficult to demould or the wax molds formed by splicing are not high in precision and poor in quality. The problem of high scrap rate

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  • Connecting rod joint wax mold forming method
  • Connecting rod joint wax mold forming method
  • Connecting rod joint wax mold forming method

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.

[0033] Such as Figure 1 to Figure 7 As shown, a method for forming a wax mold of a connecting rod joint in this embodiment, the specific steps are as follows:

[0034] 1) Molding the first wax pattern 3 in the first mold, the first wax pattern 3 includes the first bushing 4, the first body 5 and two ear parts 6, the first mold is provided with a core for easy core pulling Block, so that the first body 5 of the first wax pattern 3 obtained by molding is formed with a first blind hole 51. The diameter of the first blind hole 51 is larger than the diameter of the threaded hole of the connecting rod joint blank casting. The first blind hole 51 The hole 51 includes a through-hole section 511 located at the outer end of the first blind hole 51 and a tool retract...

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Abstract

The invention relates to the technical field of investment casting, in particular to a connecting rod joint wax mold forming method. A first wax mold is formed in a first mold; the first wax mold comprises a first shaft sleeve, a first body and two lug parts; a first blind hole is formed in the first body; a straight-barrel-shaped wax mold is formed in a second mold; the outer wall of the straight-barrel-shaped wax mold can be matched with the inner wall of a through hole section; the straight-barrel-shaped wax mold is spliced into the first blind hole; and a complete connecting rod joint wax mold is formed. According to the connecting rod joint wax mold forming method, the first wax mold and the straight-barrel-shaped wax mold are formed respectively, the appearance structure of the first wax mold is the same as that of a connecting rod joint; the first wax mold and the straight-barrel-shaped wax mold are easy to form; in the splicing process of the two wax molds, positioning or other positioning tools are not needed; operation and splicing are very easy; the splicing efficiency is improved; and the splicing precision can be ensured.

Description

technical field [0001] The invention relates to the technical field of investment casting, in particular to a method for forming a wax mold of a connecting rod joint. Background technique [0002] Investment casting, also known as lost wax casting, includes processes such as wax pressing, wax repairing, tree formation, dipping, melting wax, casting molten metal and post-processing. Lost wax casting is to use wax to make a wax mold of the part to be cast, and then coat the wax mold with mud, which is the mud mold. After the clay mold dries, it is placed in hot water to melt the inner wax mold. Take out the clay mold that has melted the wax mold and then bake it into a pottery mold, then pour molten metal into the pottery mold from the sprue, and get the casting after cooling. [0003] The connecting rod is one of the main force transmission parts in the automobile engine parts, and the connecting rod joint is an important connecting part connecting the connecting rod and th...

Claims

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Application Information

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IPC IPC(8): B22C7/02B22C9/04B22C9/22
CPCB22C7/02B22C9/04B22C9/22
Inventor 雷启洪陶维举魏大强吴高军何定李龙
Owner 谷城石花维福机械有限公司
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