JPH10225794A - Deformation prevention jig for welding base material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deformation prevention jig for welding base material capable of being easily attached to and detached from the welding base material and being easily manufactured. SOLUTION: This deformation prevention jig for welding base material is constituted of a barrel main body 2 provided with an internal left-hand thread on one tip side from the center part of the hole of a tube shaped body 4, and an internal right-hand thread on another tip side from the center part, and a pair of supporting hands 3a and 3b consisting of a supporting hand 3a provided with a head part 9a in which a groove 11a for supporting the welding base material is formed at the tip part of a thread part 8a provided with an external thread 10a to be screwed into the internal left-hand thread of the barrel main body 2 and a supporting hand 3b provided with a head part 9b in which a groove 11b supporting the welding base material is formed at the tip part of the thread part 8b provided with an external thread 10b to be screwed into the internal right-hand thread of the barrel main body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding base material, and more particularly to a jig for preventing deformation of a welding base material used for welding a cruciform column.

[0002]

2. Description of the Related Art In a building structure, a cruciform pillar is used as one type of pillar. There are various manufacturing methods for this cruciform column. As an example, as shown in FIGS.
After assembling the T-shaped member 21 manufactured by cutting the shaped member 20 and the H-shaped member into a cross shape, and temporarily attaching the crossed portion, the band plate 22 is fixed by welding between the base materials. there is a method of producing by this welding crossover portion by shielded metal arc welding, or CO ₂ arc welding. In the method of manufacturing the cruciform column, the band plate 22 is welded and fixed between the base materials because the main welding is performed without fixing the band plate 22 by welding. This is to prevent such deformation due to twisting or the like.

However, in the above-mentioned conventional method of manufacturing a cruciform column, since the band plate 22 is fixed by welding, the band plate 22 is obstructed during the main welding, and the automatic welding cannot be performed. Was. Further, since the thick band plate 22 cannot be welded due to a narrow welding point, there is a problem that the strength is not sufficient and the band is deformed during welding, which may be useless. Further, since the band plate 22 is fixed by welding, there is a possibility that a bad heat effect may be exerted on the welding base material.

The inventor of the present invention provided a horizontally elongated hole 24 at the center as shown in FIG. 21 and provided a screw hole communicating with the elongated hole 24 from both ends. A main body 23 is provided with a right-handed female screw in the other screw hole and a left-handed female screw is provided in the other screw hole, and a groove 11a for supporting a welding base material is formed at an end of the male screw 10a screwed into the right-handed female screw. A pair of support hands 3a having a head provided with a head formed with a groove 11b for supporting a welding base material at an end of a male screw 10b screwed into the female screw of the left-hand thread, and a support hand 3a provided with a formed head. And 3b were invented and applied for a patent (Japanese Patent Application No. 7-170466).

[0005]

Although this jig for preventing deformation of the welding base material can be used satisfactorily, it has manufacturing problems such as the provision of an elongated hole 14. SUMMARY OF THE INVENTION It is an object of the present invention to provide a welding base material deformation preventing jig which can be easily attached to and detached from a welding base material and which is easy to manufacture.

[0006]

In order to achieve the above object, in a jig for preventing deformation of a welding base material according to the present invention, a jig having a circular, triangular, quadrangular, hexagonal or octagonal outer peripheral shape is used. A left-handed female screw was provided at one end from the center of the hole, and a torso main body provided with a right-handed female screw at the other end from the center was provided with a male screw that was screwed into the left-handed female screw of the torso main body. The outer peripheral shape having a groove for supporting the welding base material at the end of the threaded portion has a circular, triangular, quadrangular, hexagonal, octagonal, etc. A supporting hand provided with a head having a circular, triangular, quadrangular, hexagonal, octagonal, etc. cross-sectional shape in which a groove for supporting a welding base material is formed at an end of a threaded portion provided with a male screw to be screwed. It consists of a pair of supporting hands.

In another jig for preventing deformation of a welding base material according to the present invention, the cross-section has a circular, triangular, quadrangular, six-
A female screw with a left-hand thread is provided at one end from the center of a hole of a tubular body such as a square or an octagon, a female screw with a right-hand screw is provided at the other end from the center, and a rotary tool hole is provided near the center. The outer shape of the cross-section in which a groove for supporting a welding base material is formed at an end of a threaded portion provided with a male body provided with at least one A cross-section in which a groove for supporting a welding base material is formed at an end of a threaded portion provided with a support hand provided with a head such as a square, hexagon, or octagon, and a male screw screwed into a female screw of a right-hand thread of the body. The outer shape of the surface comprises a pair of supporting hands provided with heads such as a circle, a triangle, a quadrangle, a hexagon, and an octagon.

In the jig for preventing deformation of the welding base metal according to the present invention, the female and male threads provided on the body and the pair of supporting hands of the jig for preventing deformation of the welding base metal are tapered, square, and angled. , Round shape.

Further, in the jig for preventing deformation of the welding base material according to the present invention, the grooves provided in the heads of the pair of supporting hands are about 90.
Degrees or about 120 degrees, or a groove having a relief groove at the bottom of the V. In the present invention, providing a right-handed female screw on one end side from the center of the hole of the tubular body constituting the trunk main body and providing a left-handed female screw on the other end side from the center means that the female screw is located on the center from the center. It is provided that it is provided on almost the entirety on one end side or on the other end side from the central portion, only on a part thereof, and further, an annular groove is provided on the central portion and provided on both sides thereof.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 is a front view of a welding base material deformation preventing jig according to an embodiment of the present invention, FIG. 2 is a top view of FIG. 1, FIG. FIG. 5 is a front view and a side view for explaining the body of the welding base material deformation preventing jig of the present invention. FIG. 5 is a view for explaining the outer peripheral shape of the body of the welding base material deformation preventing jig of the present invention. FIG. 6 and FIG.
FIG. 7 is a cross-sectional view illustrating a position where the female screw of the body of the welding base metal deformation preventing jig of the present invention is formed. FIG. FIG. 8 is a front view and a side view showing another embodiment of a trunk body of a welding base material deformation preventing jig of the present invention, and FIG. 9 is a welding base material deformation preventing jig of the present invention. FIG. 10 is a front view of the one shown in FIG. 9, FIG. 11 is a side view of the one shown in FIG. 10, and FIG. 12 is a welding base material of the present invention. FIG. 13 is a front view showing another embodiment of the groove of the head of the supporting hand of the deformation preventing jig, FIG. 13 is an explanatory view showing a method of manufacturing a body of the welding base material deformation preventing jig of the present invention, and FIG. 14
It is explanatory drawing which shows the other manufacturing method of the trunk | drum main body of the welding base material deformation prevention jig of this invention.

A jig for preventing deformation of a welding base material according to the present invention is shown in FIGS.
As shown in FIG. 3, a pair of support hands having a body 2 and a head formed with a groove for supporting a welding base material at an end of a screw portion provided with a male screw screwed into a female screw of the body 2. 3a and 3b.

As shown in FIG. 4, the body 2 of the welding base metal deformation preventing jig 1 of the present invention is provided with a left-handed screw on one end side of the center of the hole 5 of the tubular body 4, that is, on the left side in FIG. Female screw
6a, and a right-handed female screw 6b is provided on the other end side from the center, that is, on the right side in this figure. As shown in FIGS. 5A to 5E, the outer shape of the trunk body 2, that is, the outer peripheral shape of the cross section is circular, triangular, quadrangular,
Hexagon, octagon and the like.

The left-handed female screw 6a and the right-handed female screw 6b provided in the hole 5 of the tubular body 4 of the body 2 may be provided almost entirely on one end and the other end from the center.
Also, it may be provided only on the end side, or may be provided in any way, such as providing an annular groove 13 having an appropriate width and shape in the center as shown in FIG. It is preferable to provide the annular groove 13 at the center and to provide the groove on both sides, since the screw can be easily formed.

The shape of the ridges of the female screws 6a and 6b provided in the hole 5 of the tubular body 4 of the body 2 may be an ordinary ridge, but they do not slip even when a large load is applied. The shape of a tee (a) and the shape of a square (b) as shown in FIG. 7 are more preferable. Further, one or more rotary tool holes 7 may be provided at or near the center of the tubular body 4 of the body 2 as shown in FIG. 8, or may not be provided as shown in FIG. Is also good. The rotary tool hole 7 is for inserting a rod-shaped tool into the hole and rotating the body 2.

As shown in FIGS. 9 to 11, the supporting hands 3a and 3b constituting the welding base metal deformation preventing jig of the present invention are provided with left-handed female screws 6a provided in the holes 5 of the tubular body 4 of the body 2 as shown in FIGS. A threaded portion 8a provided with a left-handed male screw 10a screwed into a head portion 9a having a groove 11a for supporting a welding base material provided at an end thereof, and a right-handed female screw 6b formed in a right-hand thread of the body 2 It comprises a pair of a screw portion 8b provided with a male screw 10b to be screwed and a head provided with a groove 11b for supporting a welding base material at the end.

The outer peripheral shape of the cross section of the head of each of the supporting hands 3a and 3b is circular, triangular,
The shape may be a polygon, a hexagon, an octagon, or the like, and may be the same as the outer peripheral shape of the torso main body 2. Good. The shape of the grooves 11a, 11b provided on the heads 9a, 9b of the supporting hands 3a, 3b for supporting the welding base material is V-shaped, as shown in FIGS. About 12
0 degree V-shape, as shown in FIG. 12, preferably about 9
For example, square or arc-shaped relief grooves 12a and 12b are provided at the bottom of a V-shaped groove of 0 to about 120 degrees. The angle of the V-shape of the grooves 11a and 11b supporting the welding base material may be about 90 to about 120 degrees when the pillars to be manufactured are square, but may be about 90 degrees. If it is, it is preferable that the angle is larger than 90 degrees, and since it may be up to about 120 degrees, the range is set to 90 to about 120 degrees.

The body 2 of the jig for preventing deformation of the welding base material according to the present invention.
Is manufactured as a whole by machining as shown in FIG. 1 or 8, a pipe is cut, a hole 7 for a rotary tool is made, a part of a body is manufactured, and nuts are stud welded to both ends. Fig. 13 What was manufactured by joining by welding such as friction welding
As shown in the figure, the pipe is cut, the hole 7 for the rotary tool is drilled, and both ends of the hole are cut to increase the inner diameter to produce a part of the body of the body and a part of the nut to be cut. A step formed so as to enter a hole having a larger inner diameter of a part of the body of the body is formed by joining the nuts at both ends by welding such as stud welding and friction welding. Cut the tube as shown, drill the hole 7 for the rotating tool,
Cut female threads at both ends to manufacture a part of the body,
Bolts with holes provided with 6a, 6b are manufactured by machining and the like, and those manufactured by any method such as those manufactured by screwing them together, those manufactured by machining after forging, the required strength, Any material having properties and shapes such as hardness and toughness may be used. Further, the supporting hands 3a and 3b of the welding base material deformation preventing jig of the present invention were manufactured by machining as a whole, and were welded to a plate provided with V-shaped grooves 11a and 11b on both sides of a bolt head. Hexagonal column with a V-shaped groove at the head is manufactured by forging, ground and then joined to the head of the bolt by stud welding, friction welding, etc., forged and then machined Whatever is manufactured by any method, such as the above, any material having the required properties such as strength, hardness and toughness and shape can be used.

[0018]

The construction of the welding base material deformation preventing jig as described above allows a rod-shaped object to be inserted into the hole of the body, or the outer periphery of the body to be sandwiched by a rotating tool such as a spanner or a wrench. By turning, the support hand portion is extended, and the groove of the support hand is engaged with the corner portion of the temporarily-welded base material to fix the base material. Also, when the welding device passes or when welding is completed, it can be removed by turning the trunk body in the opposite direction, so by removing during welding,
The whole can be automatically welded and reused.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. 15 is a front view showing an embodiment of a welding base material deformation preventing jig of the present invention, FIG. 16 is a top view of the jig shown in FIG. 15, and FIG.
Is a left side view of the one shown in FIG. 15, and FIG. 17b is a right side view of the one shown in FIG. As shown in FIGS. 15 to 17, the welding base material deformation preventing jig according to one embodiment of the present invention is screwed into a torso main body 2 of a hexagonal tubular body 4 and a female screw provided in the torso main body 2, The head comprises a pair of hexagonal supporting hands 3a and 3b.

The body 2 of the welding base material deformation preventing jig is
The hexagonal bar is cut and formed into a tubular body 4 having a hole 5 and a groove 13 in the center by machining, and a female thread 6a of a tee-shaped left-hand thread is provided by machining to the left of the groove 13. groove
Machined to the right of 13 to make a right-hand female thread 6b
And two upper and lower rotary tool holes 7 are provided at the center.

A pair of supporting hands 3a and 3b of the welding base material deformation preventing jig are used to cut a hexagonal square member to form two materials, and this material is machined into threaded portions 8a and 8b. The heads 9a, 9b are formed together with the heads 9a, 9b, and the 90-degree V-shaped grooves 11a, 11b are formed in the heads 9a, 9b, and then the horn-shaped relief grooves 12a, 12b are formed to form two support hands 3a, 3b, and a threaded portion 8a of one supporting hand 3a is provided with a tee-shaped left-handed male screw 10a to be screwed into a tee-shaped left-handed female screw 6a provided on the body of the body, and another supporting hand 3b is provided. The right-hand threaded male thread 10 of the tee that is screwed into the female thread 6b of the right-eye thread provided on the body of the body 8b
b.

As shown in FIG. 18, this welding base material deformation preventing jig is constructed by assembling an H-shaped member 20 and a T-shaped member 21 obtained by cutting the H-shaped member into a cross shape, and temporarily attaching the crossed portions. , H-shaped material 20
The groove of the supporting hand 3a is engaged with the corner of the H-shaped member 20 between the and the T-shaped member 21, and the groove of the supporting hand 3b is engaged with the corner of the T-shaped member 21. A rod-shaped tool is inserted into the rotary tool hole 7, and the body 2 is turned to extend and fix the supporting hands 3a and 3b.

In the above embodiment, as a method of using the welding base metal deformation preventing jig of the present invention, an H-shaped member 20 and a T-shaped member 21 manufactured by cutting the H-shaped member are assembled into a cross shape, and their crosses are formed. Although the case where the cruciform column is manufactured by temporarily welding the portion which has been described above is described, the welding base metal deformation preventing jig of the present invention is used for manufacturing the cruciform column by welding by another method. It can also be used in the case of manufacturing by welding other than the cross pillar. The present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[0024]

According to the present invention, the jig for preventing deformation of the welding base material having the above-described structure has the following excellent effects. (1) It is easy to attach to and detach from the welding base material. (2) The structure is simple, it can be manufactured at low cost, and there is little failure. (3) A product having high strength can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a welding base material deformation preventing jig according to the present invention.

FIG. 2 is a top view of what is shown in FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a front view and a side view for explaining a body of the welding base metal deformation preventing jig of the present invention.

FIG. 5 is a view for explaining an outer peripheral shape of a trunk body of the welding base material deformation preventing jig of the present invention.

FIG. 6 is a cross-sectional view for explaining a position where a female screw is formed on a trunk body of the welding base material deformation preventing jig of the present invention.

FIG. 7 is a view for explaining the mountain shape of a female screw and a support screw of a trunk body of the welding base material deformation preventing jig of the present invention.

FIG. 8 is a front view and a side view showing another embodiment of the trunk body of the welding base material deformation preventing jig of the present invention.

FIG. 9 is a top view showing one embodiment of a pair of supporting hands of the welding base material deformation preventing jig of the present invention.

FIG. 10 is a front view showing one embodiment of a pair of supporting hands of the welding base material deformation preventing jig of the present invention.

FIG. 11 is a side view of the one shown in FIG. 10;

FIG. 12 is a front view showing another embodiment of the groove of the head of the supporting hand of the welding base material deformation preventing jig of the present invention.

FIG. 13 is an explanatory view showing one example of a method of manufacturing a trunk body of the welding base material deformation preventing jig of the present invention.

FIG. 14 is an explanatory view showing another example of a method of manufacturing a trunk body of the welding base material deformation preventing jig of the present invention.

FIG. 15 is a front view showing one embodiment of a welding base material deformation preventing jig of the present invention.

FIG. 16 is a top view of what is shown in FIG.

FIG. 17 is a side view of the one shown in FIG. 15.

FIG. 18 is a perspective view for explaining a use state of the welding base material deformation preventing jig shown in the embodiment of the present invention.

FIG. 19 is a perspective view illustrating a conventional method of manufacturing a cruciform column by welding.

FIG. 20 is a side view of FIG. 19.

FIG. 21 is a top view of a conventional welding base material deformation preventing jig.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Welding base material deformation prevention jig 2 Torso main body 3a, 3b Supporting hand 4 Tubular body 5 Hole 6a, 6b Female screw 7 Rotating tool hole 8a, 8b Supporting hand thread 9a, 9b Supporting head 10a, 10b Male screw 11a, 11b Groove for supporting welding base material 12a, 12b Relief groove 13 Annular groove 20 H-shaped material 21 T-shaped material 22 Band plate 23 Body 24 Slender hole

Claims (6)

[Claims] 1. A left-handed female screw (6a) is provided at one end from the center of a hole (5) of a tubular body (4), and a right-handed female screw (6b) is provided at the other end from the center. A groove (11a) for supporting a welding base material at an end of a screw body (8a) provided with a male body (2) and a male screw (10a) screwed into a female screw (6a) of a left-hand thread of the body (2). ), And a supporting hand (3a) provided with a head (9a) and a right-handed female screw (6) of the body (2).
b) Head with a groove (11b) for supporting the welding base material at the end of the threaded part (8b) provided with a male screw (10b) screwed to (9b)
A jig for preventing deformation of a welding base material, comprising a pair of supporting hands (3a, 3b) of a supporting hand (3b) provided with (1). 2. An outer peripheral shape of a tubular body (4) constituting said trunk body (2) is any one of a circle, a triangle, a quadrangle, a hexagon and an octagon. Item 2. A jig for preventing deformation of a welding base material according to Item 1. 3. The head (9) of the pair of supporting hands (3a, 3b).
The welding base metal deformation preventing jig according to claim 1 or 2, wherein the outer peripheral shape of a, 9b) is any one of a circle, a triangle, a quadrangle, a hexagon, and an octagon. . 4. The welding mother according to claim 1, wherein one or more rotary tool holes (7) are provided in the vicinity of a central portion of the body (2). Material deformation prevention jig. 5. The thread of female threads (6a, 6b) and male threads (10a, 10b) provided on the tubular body (4) of the trunk body (2) and the pair of supporting hands (3a, 3b) is tapered or 5. The method according to claim 1, wherein the shape is rectangular.
The jig for preventing deformation of the welding base material according to the item. 6. The head (9) of the pair of supporting hands (3a, 3b).
The grooves (11a, 11b) provided in a, 9b) are about 90 degrees to about 1 degree.
Escape groove at the bottom of 20 degree V shape or V (12a, 12b)
The welding base material deformation preventing jig according to any one of claims 1 to 5, wherein a jig is provided.