Auxiliary device and auxiliary method for scribing before beveling of steel plate

Abstract

The invention discloses and provides an auxiliary device and an auxiliary method for scribing before steel plate beveling. The technical problem that in the prior art, the steel plate beveling error is large, and consequently the welding seam quality is not ideal is solved. The auxiliary device comprises a plate A and a plate B which are of an integrated structure, the long edge of the outer side of the plate A coincides with the groove line on the top surface of the steel plate, and the long edge of the outer side of the plate B coincides with the groove line on the thickness surface of the steel plate. According to the auxiliary method, a plate A, a plate B, a plate C and a plate D are machined to be attached to cutting lines according to the positions of the groove cutting lines, the surface of a base metal steel plate is cleaned up, the auxiliary device is arranged in the thickness direction of the steel plate to be closely attached, and the slate pencil and the auxiliary device are moved in the length direction of the steel plate to obtain the positions of the two cutting lines; and repeating the operation to obtain all required cutting line positions, and then using a flame cutting machine to align to the cutting lines for cutting. The device is formed by bending and processing the color steel tile, is used for quickly and conveniently grooving and scribing the steel plate, improves the working efficiency, is simple and practical, and ensures the grooving quality of the steel plate.

Description

technical field

[0001] The invention belongs to the technical field of steel plate processing equipment, and in particular relates to an auxiliary device and an auxiliary method for scribing before beveling of a steel plate. Background technique

[0002] In order to ensure the penetration of the weld on the workpiece, when using arc welding to weld thick materials, it should also be considered to open a groove at the joint. There are four basic forms of grooves commonly used in manual arc welding: I-shaped groove, V-shaped groove, U-shaped groove and X-shaped groove. When welding thick plates with T-shaped or fillet joints, K-shaped grooves can also be opened. bevel.

[0003] Depending on the thickness of the welded plate, the groove types of the butt joint are as follows:

[0004] 1. I-shaped groove (or flat joint): It is used for welding with a thickness of 1-6mm. In order to ensure the penetration of the welded parts, a gap of 0-2.5mm should be left at the joint. [00...

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