CN104180151A

CN104180151A - Special-shaped supporting 6-shaped tube

Info

Publication number: CN104180151A
Application number: CN201410411779.6A
Authority: CN
Inventors: 宋宇光; 杜伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-21
Filing date: 2014-08-21
Publication date: 2014-12-03

Abstract

The invention discloses a special-shaped square tube with a supporting effect. The special-shaped square tube is produced by a cold-bending online continuous process and is used for a commercial vehicle; and different special-shaped square tubes can be produced in a bending manner one by one; and the problem that the existing common sectional material is simple in structure, low in cross sectional moment of inertia, limited in cross section performance, low in yield and complex in mounting process and has multiple machining and welding links is solved. The special-shaped square tube comprises a whole steel plate which is 6-shaped in a cold-bending manner; a welding seam (7) is formed in a connection position of the steel plate; and the cross section is 6-shaped. The special-shaped square tube is formed in a continuous roll bending manner by a cold-bending tube welding unit; and online welding shaping, an online saw cutting production process, single-plate bending and a welding shaping process under a bending machine line are performed on the special-shaped square tube.

Description

Special-shaped support figure-six pipe

Technical field

The present invention relates to a kind of shape steel rolled stock of alternative quarter bend, particularly a kind of passive profiled square quarter bend for commercial vehicle with clod wash on-line continuous explained hereafter and the single production of bending.

Background technique

At present, the side plate head of a secret society frame that plays a supportive role of known existing commercial vehicle, adopt square tube, C shaped steel, wedge angle pipe or hot-rolled steel channel list kind section bar to manufacture and design, also can manufacture and design with multiple section bar tissue, it is simple in structure, cross sectional moment of inertia is little, cross section performance is limited, processing welding link is many, productivity is low, mounting process complexity, and many industry requirements improve cross sectional moment of inertia in the situation that profile is constant simultaneously, common section bar cannot meet the development in existing field, needs the wider section bar of a kind of accommodation to substitute.

Summary of the invention

As little in cross sectional moment of inertia for making up in the function of existing common section bar, the limited deficiency that waits of cross section performance, the mechanical property of the existing square tube of the present invention, there is again the structural feature of angle steel, C shaped steel, adopt the continuous Type of Welding of moulding simultaneously, the extensive work that has reduced processing welding after line, its mechanical property is better than the mechanical property of square tube.

The present invention is the deficiency that solves its common section bar by following scheme:

6 font pipes for special-shaped support, comprise the steel plate of monoblock cold roll forming figure-six, there is solder joint (7) at the mating interface place of steel plate, Type of Welding can be selected high frequency continuous welding, submerged arc continuous welding, laser continuous welding or air protection continuous welding according to steel plate wall thickness (3) and material, it is characterized in that: section is figure-six, four angles of tube wall external frame are external arc (1), and radius is 2 ~ 4 times of steel plate wall thickness (3); Four angles of interior profile are interior circular arc (2), and radius is 1 ~ 2.5 times of steel plate wall thickness (3); The scope of the width (10) of figure-six steel plate is 40mm ~ 200mm, and highly the scope of (4) is 80mm ~ 400mm, and wide (10) high (4) are than being 1:2 ~ 1:3.5; The part of remaining silent minor face (9) height value is 20mm ~ 200mm; Steel pipe edge sealing (8) length of remaining silent , the long limit (5) of opening length , opening minor face (6) length range is 25mm ~ 60mm, and the angle of remaining silent is respectively 90 °, and 90 °, 110 °, 70 °, wherein L is the remain silent length of edge sealing (8) of steel pipe, and B is steel pipe overall width, and t is steel plate wall thickness, and N is the length on the long limit of steel pipe opening (5); Wall thickness (3) scope is 3mm ~ 16mm.

The material of figure-six pipe is carbon steel, high-strength automobile steel and stainless steel, and its surrender authority and tensile strength Applicable scope are respectively 195MPa ~ 960MPa, 350MPa ~ 1260MPa.

The present invention can increase the cross sectional moment of inertia of steel pipe, reduce welding link, and technique is simple, can extensive use commercial vehicle side plate head of a secret society frame, the aspect such as self-discharging vehicle sideboard head of a secret society frame, railway freight-car side bar, tower crane, technique steel structure, photovoltaic industry, increase the product variety of clod wash square tube, widened the using scope of cold-bending square and rectangular pipe.

Brief description of the drawings

Accompanying drawing Fig. 1 is structural representation of the present invention.

Embodiment

6 font pipes for special-shaped support, comprise the steel plate of monoblock cold roll forming figure-six, there is solder joint (7) at the mating interface place of steel plate, Type of Welding can be selected high frequency continuous welding, submerged arc continuous welding, laser continuous welding or air protection continuous welding according to steel plate wall thickness (3) and material, it is characterized in that: section is figure-six, four angles of tube wall external frame are external arc (1), and outer arc radius is 2 ~ 4 times of steel plate wall thickness (3); Four angles of interior profile are interior circular arc (2), and inner arc radius is 1 ~ 2.5 times of steel plate wall thickness (3); Wide (10) high (4) of the steel plate of figure-six are than being 1:2 ~ 1:3.5, and the scope of width (10) is 40mm ~ 200mm, and highly the scope of (4) is 80mm ~ 400mm; The part of remaining silent minor face (9) height value is 20mm ~ 200mm; Steel pipe edge sealing (8) length of remaining silent , the long limit (5) of opening length , opening minor face (6) length range is 25mm ~ 60mm, and the angle of remaining silent is respectively 90 °, and 90 °, 110 °, 70 °, wherein L is the remain silent length of edge sealing (8) of steel pipe, and B is steel pipe overall width, and t is thickness of steel pipe, and N is the length on the long limit of steel pipe opening (5); Wall thickness (3) scope is 3mm ~ 16mm.

The present invention adopts clod wash welded tube unit continuous rolling to curve type, online weld shaping, online sawing production technology, and spiral-plate bending, weld shaping technique under bender line.

Existing automobile side plate head of a secret society frame can adopt figure-six pipe, its width (10)=93mm, remain silent minor face (9)=103mm, steel pipe remain silent edge sealing (8)=90.5mm, the long limit of steel pipe opening (5)=65.8mm, steel pipe opening minor face (6)=25mm, steel pipe thickness (3)=8mm of (4)=340mm, steel pipe highly, its angle is as accompanying drawing.

Claims

1. 6 font pipes for special-shaped support, comprise the steel plate of monoblock cold roll forming figure-six, there is solder joint (7) at the mating interface place of steel plate, Type of Welding can be selected high frequency continuous welding, submerged arc continuous welding, laser continuous welding or air protection continuous welding according to steel plate wall thickness (3) and material, it is characterized in that: section is figure-six, four angles of tube wall external frame are external arc (1), and outer arc radius is 2 ~ 4 times of steel plate wall thickness (3); Four angles of interior profile are interior circular arc (2), and inner arc radius is 1 ~ 2.5 times of steel plate wall thickness (3); The scope of the width (10) of the steel plate of figure-six is 40mm ~ 200mm, and highly the scope of (4) is 80mm ~ 400mm, and wide (10) high (4) are than being 1:2 ~ 1:3.5; The part of remaining silent minor face (9) height value is 20mm ~ 200mm; Steel pipe edge sealing (8) length of remaining silent , the long limit (5) of opening length , opening minor face (6) length range is 25mm ~ 60mm, the angle of remaining silent is respectively 90 °, and 90 °, 110 °, 70 °; Wall thickness (3) scope is 3mm ~ 16mm, and wherein L represents the remain silent length of edge sealing (8) of steel pipe, and B is steel pipe overall width, and t is steel plate wall thickness, and N is the length on the long limit of steel pipe opening (5).

2. 6 font pipes for special-shaped support according to claim 1, is characterized in that: the material of figure-six pipe is carbon steel, high-strength automobile steel and stainless steel, and its surrender authority and tensile strength Applicable scope are respectively 195MPa ~ 960MPa, 350MPa ~ 1260MPa.