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A bulging device

A technology of bulging and forming dies, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve problems such as pipe bulging

Active Publication Date: 2022-03-22
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiment of the present application is to provide a bulging device to solve the problem of how to bulge the pipe

Method used

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0024] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and oth...

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Abstract

The present application discloses a bulging device, which is used for bulging a pipe with a hollow structure, wherein the pipe is provided with an area to be bulged, and the bulging device includes: a fixed structure, including a lower mold base and a layer stacked with the lower mold base The upper mold base is set, the lower mold base is provided with a lower through hole, the position of the upper mold base corresponding to the lower through hole is provided with an upper through hole, and the two ends of the pipe are respectively clamped in the upper through hole and the lower through hole; and the forming structure, It includes a forming template with a forming cavity, a flexible medium set in the pipe, and a punch for pushing the flexible medium. The forming template is fixed between the upper die base and the lower die base. The forming die cavity has a through-hole structure, and the pipe is passed through The forming cavity, and the area to be bulged is located in the forming cavity, the inner diameter of the forming cavity is larger than the outer diameter of the pipe, and the punch pushes the flexible medium downward under the action of external force. In this application, the flexible medium presses the pipe wall of the area to be bulged into the forming die cavity, and finally makes the pipe bulge.

Description

technical field [0001] The invention belongs to the technical field of pipe bulging and forming, and in particular relates to a bulging device. Background technique [0002] Pipe parts are a kind of mechanical parts widely used in automobile, shipbuilding and aerospace industries. It is the development trend of modern manufacturing technology to achieve lightweight, strong toughness and low-consumption and high-efficiency precision forming technology of products. Compared with traditional forming processes such as welding, casting and machining, the pipe bulging process belongs to net forming, with high material utilization rate, low cost and high efficiency. Therefore, pipe bulging has achieved rapid development and occupies a very important position in contemporary industry. . Contents of the invention [0003] The purpose of the embodiments of the present application is to provide a bulging device to solve the problem of how to bulge a pipe. [0004] In order to achi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D26/033B21D26/047B21D37/16
CPCB21D26/033B21D26/047B21D37/16
Inventor 龚峰张灿滨陈凯哲闫超李康森
Owner SHENZHEN UNIV