TWM657861U - Welding assistive device - Google Patents

Abstract

A welding auxiliary device includes a positioning body, and positioning wings are formed on both sides of the positioning body. An adjusting screw is provided in the center of the positioning body, and the end of the adjusting screw protrudes out of the positioning body, and the adjusting screw can be rotated on the positioning body to adjust the protruding length of the end of the adjusting screw. Through the above structure, a welding auxiliary device structure is provided, which can pre-deform the steel plate so that the steel plate can be restored to a flat shape after cooling and deformation after welding, thereby improving the aesthetics and flatness of the steel plate of ships and boats.

Description

Welding Aids

This invention is a welding auxiliary device, in particular, a welding auxiliary device structure that can pre-deform the steel plate so that the steel plate can be restored to a flat shape after cooling and deformation after welding, thereby improving the aesthetics and flatness of the steel plate of ships and boats.

As shown in FIG1 , ships and boats are constructed by welding tens of thousands of steel plates 10 and supporting plates (or steel beams) 11. When the steel plates 10 are welded to the supporting plates (or steel beams) 11, the temperature at the welding point of the steel plates 10 is higher, and the welding position will expand, but other positions will not be thermally expanded. Therefore, the welding position will have compressive stress and plastic shrinkage deformation. When the welding is completed, the steel plates 10 are cooled to the original temperature. The steel plate 10 may be deformed at an angle due to uneven shrinkage at welding positions and other positions, so that the steel plate 10 may protrude from the surface of the steel plate 10 at the location where the supporting plate (or steel beam) 11 is provided, and other locations may be slightly concave, resulting in a "slimming effect". In particular, the deformation of the steel plate 10 may be affected by the thickness of the steel plate 10, the size of the weld leg, and the heat input during welding, thereby affecting the aesthetics and flatness of the ship or boat.

The purpose of this invention is to improve the above-mentioned defects, so as to provide a welding auxiliary device structure that can pre-deform the steel plate so that the steel plate can be restored to a flat shape after cooling and deformation after welding, thereby improving the aesthetics and flatness of the steel plate of ships and boats.

To achieve the above-mentioned purpose, the welding auxiliary device of the invention comprises a positioning body, the two sides of which are respectively formed with positioning wings, an adjusting screw rod is provided in the center of the positioning body, the end of the adjusting screw rod protrudes out of the positioning body, and the adjusting screw rod can be rotated on the positioning body to adjust the protruding length of the end of the adjusting screw rod;

By means of the above structure, a welding auxiliary device structure is provided which can pre-deform the steel plate so that the steel plate can be restored to a flat shape after cooling and deformation after welding, thereby improving the aesthetics and flatness of the steel plate of ships and boats.

The technical means and structures used in this invention to achieve the purpose are described in detail with reference to the embodiments shown in FIGS. 2 to 7 :

As shown in FIGS. 2 and 3 , the welding aid of the present invention comprises a positioning body 20 , and positioning wings 21 and 22 are formed on both sides of the positioning body 20 , respectively. An adjusting screw 30 is provided in the center of the positioning body 20 , and the end of the adjusting screw 30 protrudes out of the positioning body 20 , and the adjusting screw 30 can be rotated on the positioning body 20 to adjust the protruding length of the end of the adjusting screw 30 .

By means of the above structure, when welding the steel plate 40 and the supporting plate (or steel beam) 50, as shown in FIG. 4, the positioning body 20 of the invention can be positioned between the two supporting plates (or steel beams) 50, and the positioning wings 21 and 22 on both sides of the positioning body 20 can be pressed against the supporting plate (or steel beam) 50, and the positioning body 20 can be rotated to 0, so that the end of the adjusting screw 30 is against the surface of the steel plate 40; then, the deformation of the steel plate 40 is calculated according to the thickness of the steel plate 40, the size of the weld leg and the heat input during welding, and the adjusting screw 30 is rotated to a predetermined length so that the adjusting screw 30 can push the steel plate 40 outward, so that the steel plate 40 generates After a certain amount of pre-deformation (as shown in FIG. 5 ), the personnel can weld the steel plate 40 and the supporting plate (or steel beam) 50. After the welding is completed, the adjusting screw 30 is rotated in the opposite direction so that the adjusting screw 30 no longer presses against the steel plate 40 (as shown in FIG. 6 ). The steel plate 40 will shrink inwards and deform during cooling due to the high heat of welding. At this time, since the cooling deformation after welding is in the opposite direction to the pre-deformation, the steel plate 40 can offset the concave and convex after cooling deformation, so that the steel plate 40 can be restored to a flat state (as shown in FIG. 7 ). The steel plate 40 will not have convex or concave conditions, so the welded steel plate 40 can be flat and beautiful.

In particular, after calculating the deformation of the steel plate 40 according to the thickness of the steel plate 40, the size of the weld leg and the heat input during welding, the adjusting screw 30 of the invention can be used to push the steel plate 40 in the opposite direction to deform it to a preset value, so that the steel plate 40 can be truly offset by the unevenness during the cooling deformation after welding and return to a flat state; therefore, the invention can not only be adjusted according to the needs of different steel plates 40, but also the volume of the invention is relatively small and can be moved and transported to the required location for operation, so the invention is easy to operate, fast and easy to move.

Therefore, from the above, it can be seen that this invention can indeed provide the possibility of pre-deforming the steel plate so that the steel plate can be restored to a flat shape after cooling and deformation after welding, thereby reducing the occurrence of the skinny effect. Therefore, this invention can provide the beauty and flatness of the steel plates of ships and boats. Therefore, this invention is indeed progressive and practical, and its structure is indeed unprecedented. It truly meets the requirements of a new patent. Therefore, a patent application is filed in accordance with the law, and I pray for the grant of the patent. I am very grateful.

However, what is described above is only a feasible embodiment of the present invention. The embodiment is mainly used to illustrate the technical means and structure used by the present invention to achieve the purpose. Therefore, it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the description of the present invention and the scope of the patent application should still fall within the protection scope covered by the present invention.

10: Steel plate 11: Support plate 20: Positioning body 21: Positioning wing 22: Positioning wing 30: Adjustment screw 40: Steel plate 50: Support plate

〔Figure 1〕is a schematic diagram of the thin horse effect produced by the conventional steel plate and the supporting plate. 〔Figure 2〕is a three-dimensional exploded diagram of this creation. 〔Figure 3〕is a three-dimensional assembly diagram of this creation. 〔Figure 4〕is a front view of this creation between the steel plate and the supporting plate. 〔Figure 5〕is a front view of this creation between the steel plate and the supporting plate, and a schematic diagram of the adjusting screw pushing the steel plate outward. 〔Figure 6〕is a front view of this creation between the steel plate and the supporting plate, and a schematic diagram of the welding being completed so that the adjusting screw no longer pushes the steel plate. 〔Figure 7〕is a front view of this creation between the steel plate and the supporting plate, and a schematic diagram of the steel plate cooling and returning to a flat state.

20: Positioning the body

21: Positioning wing

22: Positioning wing

30: Adjustment screw

Claims (1)

A welding assistant includes a positioning body, which is in the shape of a long strip. Positioning wings are formed on both sides of the positioning body. An adjusting screw is provided in the center of the positioning body. The end of the adjusting screw protrudes out of the positioning body, and the adjusting screw can be rotated on the positioning body to adjust the protruding length of the end of the adjusting screw.

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