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Groove making method of special-shaped box-shaped steel member

A manufacturing method and a technology for special-shaped boxes, which are applied in the directions of manufacturing tools, metal processing equipment, welding equipment, etc., can solve the problems of waste of process and manpower, increase the occurrence of deformation of cutting, and increase the amount of cutting.

Active Publication Date: 2021-08-27
CHINA 22MCC GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the amount of cutting is increased, the deformation of cutting is increased, the waste of process and manpower is caused, and the processing efficiency is low.

Method used

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  • Groove making method of special-shaped box-shaped steel member
  • Groove making method of special-shaped box-shaped steel member
  • Groove making method of special-shaped box-shaped steel member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 It is a cross-sectional view of the special-shaped box according to Embodiment 1 after setting out according to the drawings. The special-shaped box is a parallelogram, and the vertex of the upper left corner is selected as the reference point. According to the protruding parts of the upper side panel and the lower side panel that exceed the left side panel and the right side panel respectively, the panels a1 and a3 are selected as the cover panels, and the panels a2 and a4 are selected as the cover panels. The web, where the cover plate and the web are both steel plates with a thickness of 30mm.

[0027] like figure 1 As shown, the angle formed by plate a1 and plate a2 is 106°. According to the cutting method in the prior art, the plate a1 is firstly reverse-cut 106°-90°=16°, so as to maintain a natural slope between the two, and at the same time, it is necessary to cut the groove angle of 15°, that is, reverse-cut the plate a1 by 31°, To ensure that the an...

Embodiment 2

[0032] refer to Figure 8 , shows the groove cutting method of the non-parallelogram special-shaped box-shaped steel member according to the present invention. Taking the vertex of the upper left corner as the reference, the plate a5 is used as the cover plate, and the plate a6 is used as the web plate, the angle formed between them is 100°, and the plate a5 is cut back 100°-90°+30°=40°, and the blunt edge is left is 9mm, which meets the requirement of a blunt edge greater than 5mm, and the right angle of plate a6 remains unchanged. Although there is still a natural inclination of 10° between the blunt edge of plate a5 and plate a6, the natural inclination is small and basically has no effect. Therefore, it is not necessary to cut, and it can be directly wrapped when welding the wrapped surface. The angle formed between the plate a6 and the plate a7 is 89°, which is close to 90°, the natural slope between the two is 1°, the inverse cut to the plate a7 is 15°, and the tangent ...

Embodiment 3

[0034] refer to Figure 9 , shows the groove cutting method of the pentagon special-shaped box-shaped steel member according to the present invention. Taking the vertex of the upper left corner as the reference point, the angle formed by plate a9 and plate a10 is 125°, select plate a9 as the cover plate, if the cover plate a9 is cut 125°-90°+30°=65°, it cannot be satisfied as a plate The requirement of 5mm blunt edge is reserved for a9, so under the condition of reserving 5mm blunt edge for plate a9, reverse cut 125°-90°+20°=55° for plate a9, and the gap between the cover plate and the web after cutting must be satisfied. The angle between the plates a10 and a11 is also 125°, the plate a11 is selected as the cover plate, and the cut of the plate a11 is 65°-55°=10°. The method is the same as that of plate a9, anti-cut 55°, plate a10 is still tangent 10°; plate a11 and plate a12 form 90°, plate a11 is anti-cut 15°, plate a12 is tangent 15°; plate a12 and plate a113 form 110° d...

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Abstract

The invention provides a method for manufacturing the groove of a special-shaped box-shaped steel member, which is realized by the following steps: step 1: setting out according to the dimension drawing of the special-shaped box-shaped section; step 2: taking a corner on the section of the special-shaped box as a reference point, and selecting a cover Plate and web; Step 3: On the premise that the blunt edge is greater than or equal to 5mm, cut the cover plate separately, and ensure that the sum of the bevel angles of the cut plates is 30 degrees; Step 4: For the cover plate At the other end, a natural slope cutting is performed, and the angle between the plates is compensated by the cutting web to ensure that the sum of the bevel angles of the cut plates is 30°; Step 5: According to the above steps 2 to 4, each Determine the angle, measure the angle, size, and direction of the cutting groove, and mark it on the plate; Step 6: Use a semi-automatic cutting machine to cut the groove. By adopting the above method, the cutting times of the cover plate is reduced, the cutting process is simplified, and the waste of resources is reduced.

Description

technical field [0001] The invention belongs to the manufacturing technology of building steel structures, and in particular relates to a method for manufacturing grooves of special-shaped box-shaped steel members. Background technique [0002] At present, when making boxes made of steel members, for ordinary rectangular boxes with cross-sectional angles of 90°, it is necessary to cut 15° grooves on the cover plate and web plate before welding to realize the cover plate and web plate. Connection. However, in special-shaped box-shaped steel members, because some included angles of the special-shaped box-shaped section are not right angles (90°), they cannot be processed in the conventional groove form. According to the conventional method, directly press the box-shaped cover plate and web plate to shovel 15 degrees each. Since the angle is not regular, the natural slope of the cover plate should be cut off (defined in this paper as the difference between the angle between th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/10
CPCB23K31/10
Inventor 陈宇斌
Owner CHINA 22MCC GROUP CORP
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