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Butt joint forming process of half shell

A molding process and molding structure technology, which is applied to engine components, mechanical equipment, etc., can solve the problems of high labor intensity, increased production costs, and high product quotas, so as to improve production efficiency and product quality, reduce material quotas, and reduce labor costs. Effect

Inactive Publication Date: 2020-05-22
江苏鹏德工业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The half-shell is a left-right asymmetric special-shaped structural component. The left and right half-shells are welded and formed into a tapered end as a connector for the exhaust system of the automobile engine. Due to the limitation of the space structure, the connection of the air outlet manifold is mostly shaped and irregular. The positioning of the workpiece is difficult, the springback is large after forming, and the structural design of the small port joint is particularly complicated, which brings difficulties to the production process.
In the past, single-station multi-machine connection and single-piece half-shell production methods were used in production, which resulted in low production efficiency, high labor intensity, unstable product quality, high product quotas, and increased production costs.

Method used

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with embodiment.

[0009] Half-shell butt joint molding process of the present invention, it comprises the following steps,

[0010] (1) Using Dynaform forming analysis software, fully numerically simulate the forming process of the half-shell small-mouth butt joint forming structure to obtain the best process parameters and the shape and size of intermediate process parts to ensure that the product thinning rate is ≤ 20%, and there is no accident Wrinkle and cracking phenomenon, the material quota is reduced by more than 10%, the fit gap between the left and right half shells is ≤0.5mm, and the diameter of the large and small nozzles is controlled within ±0.2mm;

[0011] (2) Leveling, material feeding, deep drawing, trimming, punching, part output, waste output, and stack detection.

[0012] The present invention uses half-shell forming simulation analysis to solve the forming problems such as half-s...

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Abstract

The invention relates to a butt joint forming process of a half shell. The butt joint forming process comprises the steps that (1) Dynaform forming analysis software is adopted for carrying out sufficient numerical simulation on the forming process of the small opening butt joint forming structure of the half shell; and (2) leveling, feeding, deep drawing, trimming deflashing, punching, part discharging, waste discharging and detection and stacking are carried out. Multistation automatic production is adopted, production efficiency and product quality can be greatly improved, and the materialconsumption norm can be reduced.

Description

technical field [0001] The invention relates to a half-shell butt joint process, in particular to a butt joint forming process for left and right asymmetric special-shaped structural parts. Background technique [0002] The half-shell is a left-right asymmetric special-shaped structural component. The left and right half-shells are welded and formed into a tapered end as a connector for the exhaust system of the automobile engine. Due to the limitation of the space structure, the connection of the outlet manifold is mostly irregular-shaped half-shell design, which makes it difficult to locate the workpiece, and the springback is large after forming. The structural design of the small port joint is particularly complicated, which brings difficulties to the production process. In the past, single-station multi-machine connection and single-piece half-shell production methods were used in production. The production efficiency was low, the labor intensity of workers was high, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00B21D53/84
CPCB21D35/001B21D35/002B21D53/84
Inventor 沈学军邵支农谈正光
Owner 江苏鹏德工业科技有限公司