Butterfly-shaped cylinder bottom closed die forging structure

A closed die forging and cylinder bottom technology, applied in forging/pressing/hammer devices, forging/pressing/hammering machinery, manufacturing tools, etc., can solve the problem of increasing material costs, leakage of outer cylinder bottom, affecting the quality of forgings, etc. question

Inactive Publication Date: 2021-06-04
郑州煤机格林材料科技有限公司
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Problems solved by technology

[0002] Green Company mainly produces coal mine hydraulic supports, and the cylinder bottom of the column in the support is the key product; there are defective products with folded jaws in each batch of forgings, and the folded parts need to be planed and welded in the later stage, which may cause liquid leakage at the bottom of the outer cylinder , which greatly affects the quality of forgings
like Figure 5 and Im...

Method used

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  • Butterfly-shaped cylinder bottom closed die forging structure
  • Butterfly-shaped cylinder bottom closed die forging structure
  • Butterfly-shaped cylinder bottom closed die forging structure

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] Such as Figure 1~Figure 6 A butterfly-shaped cylinder bottom closed die forging structure is shown, including: an upper mold and a lower mold, and a casting cavity in the middle after the upper mold and the lower mold are closed. The mold cavity is higher than the concave side of the mold; on the edge of the upper mold, there is a lock matching the concave side of the mold. After the mold is closed, the lock is stuck on the concave side of the mold to ...

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Abstract

The invention provides a butterfly-shaped cylinder bottom closed die forging structure. A die assembly concave edge is arranged on the edge of a lower die, and a cavity in the lower die is higher than the die assembly concave edge; and the edge of an upper die is provided with a lock catch matched with the die assembly concave edge, after die assembly, the lock catch is clamped on the die assembly concave edge to seal a casting cavity, and in the vertical direction, the angle between the vertical edge of the lock catch and the vertical edge of the die assembly concave edge is 3.5-5 degrees. The butterfly-shaped cylinder bottom closed die forging structure has the advantages that under the condition that closed die forging is adopted, a forge piece is free of flash waste, materials are saved, and the material cost is reduced; no residual flash exists at the outer circle, the quality of the forge piece is improved, the machining allowance is reduced, and the production efficiency is improved; and when the forge piece is forged, the spherical surface faces upwards, and the oxide skin of a spherical part is reduced.

Description

technical field [0001] The invention relates to the field of die forging, in particular to a butterfly-shaped cylinder bottom closed die forging structure. Background technique [0002] Green Company mainly produces coal mine hydraulic supports, and the cylinder bottom of the column in the support is the key product; there are defective products with folded jaws in each batch of forgings, and the folded parts need to be planed and welded in the later stage, which may cause liquid leakage at the bottom of the outer cylinder , which greatly affects the quality of forgings. Such as Figure 5 with Image 6 As shown, there is flash in open die forging, which increases the material cost; in addition, there is residual flash on the outer circle of open die forging, and the outer circle cannot be clamped during subsequent processing, but the jaw step on the spherical surface can only be clamped, making it impossible to cancel the jaw step , As a result, the ball can only face down...

Claims

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Application Information

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IPC IPC(8): B21J13/02B21J5/02
CPCB21J13/02B21J5/025
Inventor 冯来庆王腾飞孙远航孟庆伟游小刚苏辉
Owner 郑州煤机格林材料科技有限公司
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