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Method for blanking two-sided oblique head structural steel

A type of steel and double-sided technology, which is applied in the field of double-sided oblique head section steel blanking, can solve the problems of not being able to obtain double-sided oblique heads, and achieve the effects of large butt joint gaps, improved production efficiency, and accurate angles

Active Publication Date: 2012-05-09
ZHONGTONG BUS HLDG
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  • Abstract
  • Description
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Problems solved by technology

Conventional sawing machine blanking method: After the workpiece (shaped steel (rectangular steel pipe)) is clamped, the saw blade above the workpiece is fed downward for cutting (or the saw blade below is fed upward for cutting). By adjusting the cutting angle of the saw blade, no angle can be obtained. or single-angle oblique head (such as Figure 1-3 shown), but can not get double-sided bevel

Method used

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  • Method for blanking two-sided oblique head structural steel
  • Method for blanking two-sided oblique head structural steel
  • Method for blanking two-sided oblique head structural steel

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Such as Figure 4-12 As shown, a is the angle between the inclined plane of the profiled steel and the vertical plane, b is the angle between the inclined plane of the profiled steel and the horizontal plane, and both a and b are known quantities during actual processing, A is the height of the profiled steel, B is the width of the profiled steel, and X is the rotation of the profiled steel angle, is the rotation angle of the saw blade, and endpoint I, endpoint II, and endpoint III are the three endpoints of the spatial bevel head.

[0027] The blanking method of double-sided oblique head section steel includes the following steps:

[0028] 1). According to the rotation angle x of the profiled steel, the profiled steel base 5 is made; the profiled steel base 5 is made by opening a V-shaped groove with an included angle of 90° on the upper surf...

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Abstract

The invention relates to a method for blanking a two-sided oblique head structural steel, comprising the following steps: 1) manufacturing a structural steel base according to the rotating angle x of the structural steel; and 2) fixing the structural steel on the structural steel base to be tightly clamped; adjusting the cutting angle of a saw blade to be Phi, and cutting to obtain an accurate space angle oblique head. The rotating angle x of the structural steel is that x is equal to tan-1(tanb / tana), wherein, a is the included angle of the vertical plane of the structural steel inclined plane, b is the horizontal included angle of the structural steel inclined plane, and a and b are the known quantity in actual processing; the cutting angle Phi of the saw blade is that the Phi is equal to tan-1(tanb*cosx), wherein, b is the horizontal plane included angle of the structural steel inclined plane, and X is the rotating angle of the structural steel. By adopting the above technical scheme, the method of the invention can acquire the blanking of the accurate space angle of the structural steel (two-sided oblique head), thus solving the blanking difficulty in the vehicle frame production.

Description

technical field [0001] The invention relates to a method for blanking section steel (rectangular steel pipe), in particular to a method for blanking section steel with double-sided oblique heads. Background technique [0002] Full load-bearing frame, also known as truss frame. This three-dimensional structure frame is welded by steel pipes, which has the functions of frame and body, and has the advantages of high rigidity and light weight. The full load-bearing vehicle frame is more and more widely used in domestic high-end passenger cars, but there is no accurate method for blanking the space diagonal bracing (section steel (rectangular steel pipe) with space inclined head) of this type of vehicle frame. Conventional sawing machine blanking method: After the workpiece (shaped steel (rectangular steel pipe)) is clamped, the saw blade above the workpiece is fed downward for cutting (or the saw blade below is fed upward for cutting). By adjusting the cutting angle of the saw ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D59/00
Inventor 房继刚
Owner ZHONGTONG BUS HLDG
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