Line marking device for I-shaped steel cutting

Abstract

The invention relates to the technical field of welding cutting, and discloses a line marking device for I-shaped steel cutting. The device comprises a line marking template, the line marking templateis provided with a pair of open slots, the portion, between the pair of open slots, of the line marking template is provided with a middle vertical plate positioning edge making contact with the sideplane of a middle vertical plate of I-shaped steel, a supporting plate front face positioning edge and a supporting plate back face positioning edge matched with the front face and the back face of asupporting plate of the I-shaped steel are formed on the two slot edges of the open slots correspondingly, and a positioning plate making contact with the side plane of the middle vertical plate of the I-shaped steel is connected to the middle vertical plate positioning edge. The cutting quality and manufacturing efficiency of the I-shaped steel are improved.

Description

technical field [0001] The invention relates to the technical field of welding and cutting, in particular to a scribing device for cutting I-beams. Background technique [0002] The I-beam is a commonly used profile, which includes a pair of support plates and a middle vertical plate arranged between the pair of support plates. I-beams are often used in the structural parts of large-scale mechanical equipment, such as the production of bases and brackets. During the production process, the I-beam needs to be cut frequently. According to different product conditions, the section after cutting the I-beam is usually required to be perpendicular to the length direction of the I-beam or form a certain oblique angle. [0003] There are following problems in the cutting of I-beam in the prior art: [0004] First, it is necessary to turn over the I-beam several times before cutting, which is time-consuming and laborious; [0005] The second is that the cumulative error is prone ...

AI Technical Summary

Problems solved by technology

[0004] First, it is necessary to turn over the I-beam several times before cutting, which is time-consuming and laborious;

[0005] Second, it is easy to accumulate errors in multiple markings, resulting in uneven truncated surfaces, which may easily lead to misalignment between the support plate and the middle vertical plate on the cutting section, and ultimately affect the quality of later production

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