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Hollow polygon body forming method

A molding method and prism technology, which can be used in other manufacturing equipment/tools, roads, road safety devices, etc., can solve the problems of non-compliance with requirements, few processes, and large molding molds, so as to improve strength and product quality, reduce Forming process, the effect of reducing twisting force

Inactive Publication Date: 2004-12-15
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of the existing hollow polygonal body forming method, such as many processes, large molding dies, and unqualified quality, the present invention provides a hollow polygonal body forming method, which has fewer steps and high quality processed hollow polygonal body

Method used

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Embodiment 1

[0038] Embodiment one is the molding method of hollow hexagonal body, and what present embodiment molding is that edge length is 200 millimeters, and the width of side is the hollow regular hexagonal body of 108 millimeters, see figure 1 , figure 2 . The forming method of the present invention is single forming. According to the conventional method, the steel plate is first stamped into a strip steel plate 12. The width of the strip steel plate 12 is 200 millimeters, and the length is 108 × 6 millimeters. On the lower die 8 of the stamping die, one side of the strip steel plate 12 is used to have the upper die 5 of the corner forming stamping die with the corner forming stamping head 6 protruding laterally and the lower part of the corner forming stamping die with the dihedral angle groove 10 Die 8 laterally punches and folds into a corner plate with a first corner edge 13 of 120° dihedral angle, and the width of the first corner edge 2 is 54 millimeters, see image 3 , the...

Embodiment 2

[0041] Embodiment two is the molding method of arc-shaped plate hollow hexagonal body 18, and what it forms is that the edge length is 200 millimeters, and the width of side is 108 millimeters, and wherein one side is the hollow hexagonal body of arc-shaped plate 21, arc The radius of the shaped plate 21 is 60 mm, see Figure 6 , Figure 7 . Earlier the strip steel plate 36 that has planted is placed on the lower die 33 of the arc stamping die that is installed on punch press, see Figure 8 , one side of the strip steel plate 36 is stamped with a punch to form an arc-shaped plate 21 with a first angled edge 22 and a second angled edge 20 on both sides, see Figure 9 , one side of the first corner edge 22 is the first corner edge 23, the width of the first corner edge 23 is 54 millimeters, and one side of the second corner corner edge 20 is the second corner edge 19, that is, a flat plate that is not stamped. The included angle between a folded edge 23 and the second folded ...

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Abstract

The hollow prism forming method includes punching one side of metal plate with one upper punching mold and one lower punching mold to form one folded angle for two planes of the prism, punching the other side of the metal plate with the molds to form the other folded angle, repeating the punching process for several times to form one prism with opened mouth, and finally welding the two butt jointed planes. Similarly, hollow prism with circular surface may be formed. The said forming process has less steps, and the formed prism has high strength and high quality.

Description

technical field [0001] The invention relates to a method for forming a hollow polygonal body, in particular to a method for forming a hollow hexagonal body installed on a road protection pole. Background technique [0002] Hollow polygons are used for support and connection, especially the hollow hexagons between the circular vertical protective bars and horizontal protective plates on both sides of the road and expressway, so as to reduce the impact on the vertical when the car hits the protective plate. The impact force of the protective rod and the destruction of the roadside road surface are buffered by the hollow hexagonal body when the car collides with the protective plate, which obviously plays a protective role in reducing the damage of the vertical protective rod. Since the cross-section of the hollow polygon is a closed curve or polygon, it is difficult to take it out from the molding die after forming. The existing hollow polygon molding method is split molding. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/04E01F15/02
Inventor 张万全赵永起张亚军冯全年赵立志
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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