JPS6116928Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a fillet welding device that improves the quality of fillet welding and enables fillet welding to be performed at low cost.

Generally, in fillet welding, welding start conditions are set, and since defects are likely to occur at the start and end of the weld, it is necessary to remove the defects. Therefore, conventionally, as shown in Fig. 1, a 100 mm square horizontal plate with the same thickness as the horizontal plate 2 and the vertical plate 3 was attached to the end of the horizontal plate 2 consisting of the flange of the workpiece 1 and the vertical plate 3 consisting of the wave. An apron material having an inverted T-shaped cross section, consisting of a vertical plate 4 and a vertical plate 5, is welded and fixed. After the main welding, the plate 6 is gas-cut from the workpiece 1, and the end face of the workpiece 1 is cut. was finished using a grinder, and the welded end of the backing plate 6 was reworked. As a result, the quality is poor and it takes a long time to rework, and furthermore, the removed backing plate 6 is scrapped.

This invention has been made with the above-mentioned points in mind, and next, this invention will be explained in detail with reference to the drawings from FIG. 2 onwards showing one embodiment of the invention.

7 and 8 are the horizontal and vertical members of the workpiece 9, 1
0 is a backing plate with an L-shaped cross section, 11 and 12 are the horizontal and vertical plates of the backing plate 10, 13 is a support plate extending before and after the horizontal board 11, and 14 is superimposed and fixed on the horizontal board 11. The overlapping plate 15 having the same thickness as the horizontal member 7 is a holding plate with one end fixed to the front and rear of the overlapping plate 14, and the other end extending onto the support plate 13. 1
6 is a bottle that penetrates and is screwed into the other end of the holding plate 15; 17 is a holding plate that overlaps and is fixed to the inner surface of the vertical plate 12; and 18 is formed between the holding plate 17 and the horizontal plate 11. 20mm gap, 19 is solid iron powder attached to gap 18, thickness 6-8mm, width 100mm.
mm, with a length of 20mm. 20 is iron powder scattered between the solid iron powder 19 and the polymer plate 14 on the horizontal plate 11, and is made of cut wire, for example.
The solid iron powder 19 is a small particle made by cutting the same material as a welding rod into approximately 1 mm pieces, has a high welding amount, and has the function of preventing hot cracking.The solid iron powder 19 is solidified because it is vertically located. It will not fall down due to the iron powder 20.

Then, the horizontal plate 11 and the vertical plate 1 of the backing plate 10
2 are provided parallel to the horizontal member 7 and vertical member 8 at one end of the object to be welded 9, and the horizontal plate 7 is fitted between one of the supporting plates 13 and the holding plate 15.
6 fixes the contact plate 10 to the horizontal plate 7. Next, solid iron powder 19 is added to the gap 18 formed in the vertical plate 12, and the outer surface of the solid iron powder 19 is made the same as the surface of the vertical member 8, and the solid iron powder 19 is added to the gap between the solid iron powder 19 and the polymer plate 14. Iron powder 20 is scattered and provided, iron powder 2
The top surface of 0 is the same as the top surface of horizontal member 7. Then, an arc is applied to the joint between the solid iron powder 19 and the iron powder 20 to start welding, and welding is then transferred to the fillet portion of the horizontal member 7 and the vertical member 8.

Therefore, since the start of welding is performed at the portion where the solid iron powder 19 and the iron powder 20 Since only the iron powder 20 is consumed, the contact plate 10 can be used as a jig many times and is extremely inexpensive. After welding work, the bolt 16 is loosened and the contact plate 10 is removed by the workpiece 9. This eliminates the need for rework such as temporary welding, cutting, and finishing with a grinder, which is required in the past, and the work time is significantly reduced.

Note that the reason why the presser plates 15 are provided at the front and rear is that the contact plate 10 can also be applied to the other end of the object 9 to be welded.

As described above, according to the fillet welding apparatus of this invention, the horizontal plate and the vertical plate of the contact plate having an L-shaped cross section are provided parallel to the horizontal member and the vertical member of the workpiece, respectively, and the contact plate is connected to the workpiece to be welded. fixing it to an object, adding solid iron powder to the vertical plate of the backing plate so that the outer surface of the solid iron powder is the same as the surface of the vertical member of the object to be welded, and placing iron powder on the horizontal plate of the backing plate. By making the top surface of the iron powder the same as the top surface of the horizontal material of the workpiece, quality is maintained, work time is shortened, and the fillet plate is not worn out, making it possible to fillet at low cost. Can perform welding. Moreover, the iron powder applied to the vertical plate of the top plate must be solid, but the iron powder on the horizontal plate of the top plate may be powder and can easily be made the same as the top surface of the horizontal plate.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional fillet welding device, FIG. 2 is a perspective view of an embodiment of the fillet welding device of this invention,
FIG. 3 is a front view of a portion of FIG. 2. 7...Horizontal material, 8...Vertical material, 9...Work to be welded, 10...Plate, 11...Horizontal plate, 12...Vertical plate, 19...Solid iron powder, 20...Iron powder.

Claims (1)

[Scope of utility model registration request] A horizontal plate and a vertical plate of a contact plate having an L-shaped cross section are provided parallel to the horizontal member and a vertical member of the object to be welded, respectively, the said contact plate is fixed to the object to be welded, and solid iron powder is attached to the vertical plate of the contact plate. The outer surface of the solid iron powder is made the same as the surface of the vertical member of the workpiece, and the iron powder is placed on the horizontal plate of the above-mentioned plate so that the upper surface of the iron powder is aligned with the upper surface of the horizontal member of the workpiece. Same fillet welding equipment.