Large-caliber head spinning die

A large-caliber, mold technology, applied in the direction of forming tools, household utensils, manufacturing tools, etc., can solve the problems that are not suitable for single pieces, small batches and multi-variety, and achieve the effect of low manufacturing cost and high precision

Inactive Publication Date: 2012-08-15
宜兴市联丰化工机械有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

Traditional pressure vessel heads are mostly produced by stamping method, which requires a large-tonnage, large-table hydraulic press and a complete set of large molds, which is not suitable for single-piece, small-batch and multi-variety pressure vessel heads in the aerospace and medical fields. production characteristics

Method used

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  • Large-caliber head spinning die
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Embodiment Construction

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] like figure 1 As shown, a large-diameter head spinning die according to the present invention includes an upper die 1 and a lower die 2; one end of the lower die 2 is a plane 3, and the other end is a large radial arc surface 4. The flat end of the lower die 2 is provided with a tapered blind hole 5, a threaded blind hole 6 is provided on one side of the tapered blind hole 5, and an escape blind hole 7 is provided on the other side; the lower part of the upper die 1 is concave. The arc surface 8 is provided with a large blind hole 9 on the upper part of the upper die 1; the lower die 2 is made of medium carbon steel; the upper die 1 is T-shaped. The invention has low manufacturing cost, can manufacture high-quality large-diameter sealing heads, and has high precision.

[0013] The parts not involved in the present invention are the same as the pr...

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Abstract

The invention relates to a large-caliber head spinning die comprising an upper die and a lower die, wherein one end of the lower die is a flat surface while the other end is a big radial arc-shaped surface; a cone-shaped blind hole is arranged at the flat surface end of the lower die; a threaded blind hole is arranged at one side of the cone-shaped blind hole while an avoiding blind hole is arranged at the other side; the lower part of the upper die is a concave cambered surface; and a big blind hole is arranged at the upper part of the upper die. The large-caliber head spinning die disclosed by the invention has the advantages of lower cost, high quality and high accuracy.

Description

technical field [0001] The invention relates to a mold, in particular to a spinning mold for a head. Background technique [0002] The head is one of the important parts of pressure vessels, and it is the key pressure component of various pressure vessels and storage tanks. Among them, the large-diameter thin-walled heads are mainly used in aerospace and medical pressure vessels and storage tanks. Pressure vessel manufacturing technology has a significant impact. The traditional pressure vessel heads are mostly produced by the stamping method. The stamping method requires a large-tonnage, large-surface hydraulic press and a complete set of large molds, which are not suitable for single-piece, small-batch and multi-variety pressure vessel heads in the aerospace and medical fields. production characteristics. Therefore, foreign countries have used spinning methods to produce various heads from the past. Since the size of the head in the aerospace and medical fields is relat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/00B21D22/16B21D51/44
Inventor 王立新王洪新张健邓建平陶解忠
Owner 宜兴市联丰化工机械有限公司
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