JP3022894U - Backing material support jig for welding - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a backing material support jig for welding for fixing a backing material such as a backing metal or ceramic. SOLUTION: A supporting jig main body 1 having a U-shaped cross section and having a female screw 8 for fixing the main body on a lower horizontal portion 7, a male screw 2 for fixing the main body which is screwed to the female screw 8 for fixing the main body, and A vertical member 3 fixed to the support jig body 1 and extending downward, and a support rod 4 rotatably supported by a lower end portion of the vertical member 3.
And a backing material holding member 5 rotatably supported on the tip of the support rod 4, and a tension spring provided between the support rod 4 and the vertical member 3 so as to pull the support rod 4. A backing material support jig for welding consisting of 6 and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a backing material support jig for welding, which supports a backing material.

[0002]

[Prior art]

 Conventionally, when welding using a steel backing metal, the backing metal is fixed to the welding base metal by temporary welding, then the steel end tabs are fixed to the welding base metal by temporary welding, and then main welding is performed. Or fixing the backing plate to the welding base metal by tack welding, place a ceramic tab, etc. on the backing plate extending from both ends of the welding base metal, and press the ceramic tab with a tab retainer. It was fixed to the welding base metal and then main welding was performed.

A ceramic backing material is also used as the backing material, but since there is no suitable supporting jig for fixing the ceramic backing material to the welding base material, a suitable steel plate is used. The ceramic backing material was fixed to the backing material by fixing this steel plate with a magnet, or it was fixed by adhering it to the welding base material with an aluminum foil with an adhesive on one side.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned conventional method of fixing the backing metal to the welding base metal by tack welding requires temporary welding of the backing metal to the welding base metal, and the backing metal is welded after the main welding. Since temporary welding is difficult to detect, the temporary welding is partial welding.Therefore, there is a possibility that cracks may occur from the non-welded portion and the portion may break. there were.

In addition, the method of fixing the ceramic backing material with the steel plate and the magnet requires finding a suitable steel plate each time, cutting it into an appropriate size, and fixing with the magnet, which is troublesome. was there. The method of fixing with aluminum foil also selects an aluminum foil with an appropriate thickness, has an adhesive attached, purchases it, cuts it into an appropriate size each time it is used, and makes a ceramic backing material. Since it has to be attached to the two surfaces and the two surfaces of the welding base metal each time, there is a drawback that it takes a lot of work. An object of the present invention is to provide a backing material support jig for welding for fixing a backing material such as a backing metal or ceramic.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the welding backing material supporting jig of the present invention, the supporting jig main body having a U-shaped section and a female screw for fixing the main body in the lower horizontal part, and the main body fixing jig are provided. Main body fixing male screw to be screwed to female female screw, vertical member fixed to the supporting jig main body, extending downward, and rotatably supported on the lower part of the vertical member, supporting for supporting backing material A rod, a backing material holding member rotatably supported by a tip end portion of the backing material support rod, and the backing material support rod is pulled between the backing material support rod and the vertical member. It is to be composed of a tension spring installed on the.

Further, in the welding backing material supporting jig of the present invention, a protrusion (stopper) for restricting the movement of the supporting rod is provided on the vertical member of the welding backing material supporting jig, and The material holding member has a stepped groove for supporting the back material.

Further, in the welding backing material supporting jig of the present invention, the supporting jig main body having a U-shaped section and a female screw for fixing the main body in the lower horizontal portion, and the female screw for fixing the main body A male member for fixing the main body to be screwed, a vertical member fixed to the main body of the supporting jig and extending downward, and a female member for fixing a fixing member which is screwed to the male screw for fixing the following fixing member, and the vertical member. A support rod that is rotatably supported on the lower end of the support rod to support the backing material, a backing material holding member that is rotatably supported on the front end portion of the support rod, and a longitudinally elongated hole in the center. A fixing member that is rotatably supported by the supporting rod and that fixes the supporting rod to the vertical member, and a front member that is provided on the vertical member to fix the fixing member to the vertical member. The fixing member fixing male screw screwed into the fixing member fixing female screw is used. And.

In the welding backing material support jig of the present invention, the supporting rod is pulled between the supporting rod and the vertical member of the welding backing material supporting jig using the fixing member. I installed a tension spring. Further, in the welding backing material supporting jig of the present invention, a protrusion for restricting the movement of the supporting rod is provided on the vertical member of the welding backing material supporting jig using the fixing member and the tension spring, and the backing material supporting jig is provided. The material holding member has a stepped groove for supporting the back material.

The support jig body 1 for welding a backing material for welding of the present invention has a U-shaped cross section, and a vertical jig 3 is integrated into a plate as shown in FIGS. It may be manufactured, the plate of each piece may be formed into a U shape by welding, or it may be bent to form two sides and the other side is fixed by welding or the like. It may be produced by a method.

The body fixing female screw 8 provided on the support jig body 1 may be provided in the hole of the plate of the lower water flat portion 7 of the support jig body 1 or may be provided in the hole. A hole having a diameter larger than the diameter of the male screw 2 for fixing the main body may be formed in 7 and a nut provided with a female screw 8 below or above the hole may be fixed by welding or the like.

The vertical member 3 of the welding backing material supporting jig of the present invention is formed by bending a plate having the vertical member 3 integrated twice as shown in FIG. 1, and then bending the vertical member 3 downward from the middle. The vertical member 3 may be manufactured by bending it once as shown in FIGS. 6, 10, 11 and then leaving the vertical member 3 and further bending the other parts. Alternatively, it may be molded separately from the supporting jig body 1 and fixed to the supporting jig body 1 by welding or the like to the vertical portion 9 or the lower horizontal portion 7 of the supporting jig body 1.

It is preferable that the backing material holding member 5 of the welding backing material supporting jig of the present invention is provided with a stepped groove 15 for securely holding the backing material as shown in FIG. , It can be flat. As shown in FIGS. 6 and 10, the fixing member 10 of the backing material support jig for welding according to the present invention is provided with an elongated hole 13 in the longitudinal direction at the center thereof. The male screw part of the fixing male screw 11 is inserted.

The main body fixing male screw 2 and the fixing member fixing male screw 11 of the welding backing material supporting jig of the present invention may be any as long as they can be fixed by turning, the dial. The one with the knob of the formula is preferable because it can be rotated by hand.

[0015]

[Action]

 The welding backing material support jig using the tension spring of the present invention covers the backing material main body 1 having a U-shaped cross section on one of the welding base materials 16 and 17 as shown in FIG. The material holding material 5 is adjusted to the position of the backing material 18, and the main body fixing male screw 2 is turned to fix the supporting jig main body 1 to one of the welding base materials 17, so that the supporting rod 4 is a tension spring. Since it is pulled by 6, the backing material 18 can be easily made of metal or ceramic between the backing material holding member 5 and the welding base materials 16 and 17. Can be fixed to.

Further, the backing material support jig for welding using the fixing member 10 has a backing material holding member 5 and the backing material holding members 5 and the welding base materials 16 and 17 after the supporting jig main body 1 is fixed. Since the fixing member 10 is fixed to the vertical member 3 by turning the fixing member fixing male screw 11 while sandwiching the material 18, the backing material 18 is fixed between the backing material holding member 5 and the welding base materials 16 and 17. It can be securely fixed in between. Further, the welding backing material supporting jig using the tension spring 6 and the fixing member 10 is the supporting rod 4
Since it is pulled by the tension spring 6, the backing material 18 can be easily fixed between the backing material holding member 5 and the welding base materials 16 and 17, and can be securely fixed. Further, as shown in FIGS. 1, 10, 11 and the like, in the welding jig for supporting the backing material, in which the tension spring 6 is used and the projection 14 for limiting the moving range of the supporting rod 4 is provided on the vertical member 3, Since the backing material holding member 5 does not rise, the mounting work becomes easy.

[0017]

[Embodiment of device]

 Embodiments of the present invention will be described below. Embodiment 1 A backing material support jig for welding according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of a backing material support jig for welding according to an embodiment of the present invention, FIG. 2 is a right side view of what is shown in FIG. 1, and FIG. 3 is a back view of what is shown in FIG. FIG. 4 is a perspective view of what is shown in FIG. 1, and FIG. 5 is a front view for explaining a method of using the welding backing material support jig of this embodiment.

As shown in FIGS. 1 to 4, the welding backing material support jig of the present invention comprises a support jig body 1 having a U-shaped cross section, a body fixing male screw 2, a vertical member 3, and a support member. It comprises a rod 4, a backing material holding member 5, a tension spring 6 and the like. The support jig main body 1 and the vertical member 3 each having a U-shaped cross section are formed by bending the plate integrally formed with the vertical member 3 twice as shown in FIGS. It is manufactured by bending. A main body fixing female screw 8 is provided on the lower horizontal portion 7 of the supporting jig main body 1, and a main body fixing male screw 2 is screwed to the main body fixing female screw 8. The main body fixing male screw 2 has a dial-shaped knob on its head, which can be turned by hand and tightened.

The vertical member 3 fixed to the support jig body 1 has a support rod 4 rotatably supported at its lower end, and a protrusion 14 for limiting the moving range of the support rod 4. ing. A backing material holding member 5 that holds a backing material 18 is rotatably supported at the tip of the support rod 4, and a tension spring 6 is attached between the backing material holding member 5 and the vertical member 3 and is always provided. It is pulled in the direction of the vertical member 3. The backing material holding member 5 is provided with a stepped groove 15 at the upper part, and the backing material 18 is put in the stepped groove 15 and held.

Next, one example of the method of using the backing material support jig for welding according to the present invention will be described. As shown in FIG. 5, the support jig main body 1 having a U-shaped cross section is welded to the welding base metal. One side 17 of the support jig, and after tightening the main body fixing male screw 2 to the extent that the support jig body 1 can be moved, the backing material 18 is provided between the step groove 15 of the backing material holding member 5 and the welding base metal 17. After sandwiching one end of the, the support jig body 1 and the backing material 18 are moved so that the backing material 18 is in the predetermined position, and when the backing material 18 is in the predetermined position, the body fixing male screw 2 is further Tighten and fix the support jig body 1 for use.

Embodiment 2 A backing material support jig for welding according to another embodiment of the present invention will be described with reference to FIGS. 6 is a front view of a welding backing material supporting jig according to another embodiment of the present invention, FIG. 7 is a right side view of what is shown in FIG. 6, and FIG. 8 is a perspective view of what is shown in FIG. , And FIG. 9 are front views for explaining how to use the welding backing material support jig of this embodiment. As shown in FIGS. 6 to 8, the welding backing material supporting jig of another embodiment of the present invention has a U-shaped supporting jig body 1, a body fixing male screw 2, a vertical member 3, It comprises a support rod 4, a backing material holding member 5, a fixing member 10 and the like.

The support jig main body 1 and the vertical member 3 each having a U-shaped cross section are formed by bending the plate integrally formed with the vertical member 3 once as shown in FIGS. It is manufactured by further bending the part of. A main body fixing female screw 8 is provided on the lower horizontal portion 7 of the support jig main body 1, and a main body fixing male screw 2 is screwed to the main body fixing female screw 8. The main body fixing male screw 2 has a dial-shaped knob on its head, which can be manually turned and tightened.

A supporting rod 4 is rotatably supported at a lower end portion of the vertical member 3 fixed to the supporting jig main body 1, and a fixing member fixing male screw 11 described below is screwed to an upper portion thereof. The fixing member fixing female screw 12 is provided. A backing material holding member 5 that holds a backing material 18 is rotatably supported at the tip of the support rod 4, and a fixing member 10 having an elongated hole 13 in the center thereof is rotated. It is movably supported. The other end of this fixing member 10 is passed through the elongated hole 13 through a thread portion of a fixing member fixing male screw 11, and this screw portion is screwed into and supported by the fixing member fixing female screw 12 of the vertical member 3. ing.

Next, one example of a method of using the welding backing material supporting jig of another embodiment of the present invention will be described. As shown in FIG. 9, a supporting jig having a U-shaped cross section is used. After covering the tool main body 1 on one of the welding base materials 17 and tightening the main body fixing male screw 2 to such an extent that the supporting jig main body 1 can be moved, the stepped groove 15 of the backing material holding member 5 and the welding base metal 17 are Hold the backing material 18 between them and press it by hand, and then move the support jig body 1 and the backing material 18 so that the backing material 18 is in the predetermined position, and the backing material 18 is in the predetermined position. Then, the main body fixing male screw 2 is further tightened to fix the supporting jig main body 1, and the backing member holding member 5 is pressed sufficiently against the backing member 18 to fix the fixing member 10 to the fixing member fixing male screw 11 Use by tightening and fixing.

Embodiment 3 A backing material support jig for welding according to another embodiment of the present invention will be described with reference to FIG. FIG. 10 is a front view of a backing material support jig for welding according to another embodiment of the present invention. As shown in FIG. 10, the welding backing material support jig of another embodiment of the present invention is the same as the welding backing material supporting jig for the tension spring 6 shown in Embodiment 1 as shown in Embodiment 2. Since it is attached to the tool, further description of the structure will be omitted.

Next, one example of a method of using the backing material support jig for welding according to this embodiment of the present invention will be explained. After covering the tool body 1 on one side 17 of the welding base material and tightening the main body fixing male screw 2 to the extent that the supporting jig body 1 can be moved, the stepped groove 15 of the backing material holding member 5 and the welding base material 17 Sandwich one end of the backing material 18 between them, and then move the support jig body 1 and the backing material 18 so that the backing material 18 is in the predetermined position, and when the backing material 18 is in the predetermined position. Then, the supporting jig main body 1 is fixed by further tightening the main body fixing male screw 2, and then the fixing member 10 is tightened and fixed by the fixing member fixing male screw 11. In the same way

The backing material support jig for welding of the above-mentioned embodiment is used for one side, but as the one used for the other side, the structure is plane-symmetrical to the one used for one side. It can be used as a backing material support jig for welding. Further, in the above embodiment, the method of using the welding backing material support jig of the present invention on one side has been described, but the welding backing material supporting jig as shown in FIGS. It is common to use the jigs on one side and the welding backing material support jigs of the present invention, which are plane-symmetrical to them, on the other side.

In addition, in the above embodiment, the fixing member 10 of the welding backing material supporting jig of the present invention is inserted into the elongated hole 13 of the fixing member 10 and the male screw portion of the fixing member fixing male screw 11 is inserted. Although 11 is rotated and fixed, the fixing member fixing male screw may be fixed to the vertical member 3 and the female screw nut may be rotated and tightened. Further, in the above embodiment, the female screw 8 for fixing the main body and the female screw 12 for fixing the fixing member are directly provided on the supporting jig main body 1 or the vertical member 3, but a nut is fixed to these to fix the main body. The female screw 8 and the female screw 12 for fixing the fixing member may be used.

In the above embodiment, the lower end of the supporting rod 4 is rotatably supported by the vertical member 3 and does not extend below the pivotally supporting point. The support rod 4 may be extended below the point where it is rotatably supported by the member 3 to the extent that it can be gripped with a hand, and the support rod 4 may be moved up and down. When the support rod 4 is extended, it may be straight as a whole, or may be bent at or around a point at which it is rotatably supported.

Further, although the protrusions 14 that limit the moving range of the support rod 4 are provided in the first and third embodiments, the protrusions 14 may not be provided. In the above embodiment, the support rod 4 is rotatably supported on the outer side of the vertical member 3 as shown in FIGS. 6 and 10, but the support rod 4 is rotated on the inner side of the vertical member 3. You may favor it.

Further, in the welding backing material supporting jig using the fixing member 10 as shown in FIGS. 6 and 10, the level of the fixing member 10 is rotatably supported by the support rod 4. A washer may be used between the vertical member 3 and the fixing member 10 at the position for fixing with the fixing member fixing male screw 11 so that the position for fixing with the fixing member fixing male screw 11 is the same. .

It should be noted that the present invention is not limited to the above-described embodiments in addition to the above points, and various modifications can be made without departing from the gist of the present invention.

[0033]

[Effect of device]

 The welding backing material support jig of the present invention has the following excellent effects by having the above-mentioned configuration. (1) Even if the backing material 18 is made of steel or ceramic, it can be easily fixed. (2) Since the structure is simple, it does not break down and is inexpensive.

(3) It can be repeatedly used any number of times and can be easily attached and detached. (4) When the backing material 18 is made of steel, the steel end tabs can be welded and fixed to the backing material 18, so there is no need to weld it to the welding base metal, It is possible to prevent the harmful effects of welding the end tabs to the material. (5) Since the welding backing material support jig using the fixing member 10 can be securely fixed, the backing material 18 does not move even when an impact is applied to the welding base material.

[Brief description of drawings]

FIG. 1 is a front view of a backing material support jig for welding according to an embodiment of the present invention.

FIG. 2 is a right side view of what is shown in FIG.

FIG. 3 is a rear view of what is shown in FIG.

4 is a perspective view of what is shown in FIG. 1. FIG.

5 is a front view for explaining how to use the one shown in FIG. 1. FIG.

FIG. 6 is a front view of a backing material support jig for welding according to another embodiment of the present invention.

FIG. 7 is a right side view of what is shown in FIG.

FIG. 8 is a perspective view of what is shown in FIG.

9 is a front view for explaining how to use the one shown in FIG.

FIG. 10 is a front view of a backing material support jig for welding according to another embodiment of the present invention.

FIG. 11 is a front view of a backing material support jig for welding according to another embodiment of the present invention.

[Explanation of symbols]

 1 Support jig main body 2 Main body fixing male screw 3 Vertical member 4 Supporting rod 5 Backing material holding member 6 Tensile spring 7 Lower horizontal part 8 Main body fixing female screw 9 Vertical part 10 Fixing member 11 Fixing member fixing male screw 12 Fixing member fixing Female thread 13 Slotted hole 14 Protrusion 15 Stepped groove 16, 17 Welding base metal 18 Backing material

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[Procedure amendment]

[Submission date] September 18, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

FIG. 7 is a right side view of what is shown in FIG.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] Figure 8

[Correction method] Change

[Correction content]

FIG. 8 is a perspective view of what is shown in FIG.

Claims (5)

[Scope of utility model registration request] 1. A support jig main body (1) having a U-shaped cross section and having a female screw (8) for fixing the main body in a lower horizontal portion (7),
A body fixing male screw (2) screwed to the body fixing female screw (8), a vertical member (3) fixed to the supporting jig body (1) and extending downward, and the vertical member (3). A support rod (4) rotatably supported on the lower end of the support rod, a backing material holding member (5) rotatably supported on the tip of the support rod (4), and the support rod (4). ) And the vertical member (3) and a tension spring (6) provided so as to pull the support rod (4), a jig for supporting a backing material for welding. 2. A support jig main body (1) having a U-shaped cross section and having a female screw (8) for fixing the main body in a lower horizontal portion (7),
A main body fixing male screw (2) screwed to the main body fixing female screw (8) and a protrusion (fixed to the supporting jig main body (1) and extending downward to limit the movement of the supporting rod (4) described below. 14)
Provided with a vertical member (3), a support rod (4) rotatably supported on the lower end of the vertical member (3), and a tip end of the support rod (4) rotatably supported. , A backing material holding member (5) provided with stepped grooves (15) for supporting the backing material (18)
And a tension spring (6) provided between the support rod (4) and the vertical member (3) so as to pull the support rod (4). jig. 3. A supporting jig main body (1) having a U-shaped cross section and having a female screw (8) for fixing the main body in a lower horizontal portion (7),
A body fixing male screw (2) screwed to the body fixing female screw (8) and a body fixing male screw (11) fixed to the supporting jig body (1) and extending downward and screwing to a fixing member fixing male screw (11) described below. A vertical member (3) provided with a female screw (12) for fixing the fixing member,
A supporting rod (4) rotatably supported on the lower end of the vertical member (3), and a backing material holding member (5) rotatably supported on the tip of the supporting rod (4). , A fixing member (in the shape of an elongated hole (13) provided in the longitudinal direction at the center thereof) rotatably supported by the support rod (4) and fixing the support rod (4) to the vertical member (3) ( 10) and a fixing member fixing male screw (12) screwed to the fixing member fixing female screw (12) provided on the vertical member (3) for fixing the fixing member (10) to the vertical member (3). 11) A jig for supporting a backing material for welding, which comprises 4. A support jig main body (1) having a U-shaped cross section and having a female screw (8) for fixing the main body on the lower horizontal portion (7),
A body fixing male screw (2) screwed to the body fixing female screw (8) and a body fixing male screw (11) fixed to the supporting jig body (1) and extending downward and screwing to a fixing member fixing male screw (11) described below. A vertical member (3) provided with a female screw (12) for fixing the fixing member,
A supporting rod (4) rotatably supported on the lower end of the vertical member (3), and a backing material holding member (5) rotatably supported on the tip of the supporting rod (4). A tension spring (6) provided between the support rod (4) and the vertical member (3) so as to pull the support rod (4), and an elongated hole (13) in the longitudinal direction at the center.
A fixing member (10) that is rotatably supported by the supporting rod (4) and that fixes the supporting rod (4) to the vertical member (3), and the fixing member (10). For welding, which comprises a fixing member fixing male screw (11) screwed to a fixing member fixing female screw (12) provided on the vertical member (3) for fixing to the vertical member (3). Backing material support jig. 5. A support jig main body (1) having a U-shaped cross section and having a female screw (8) for fixing the main body on the lower horizontal portion (7),
A body fixing male screw (2) screwed to the body fixing female screw (8) and a body fixing male screw (11) fixed to the supporting jig body (1) and extending downward and screwing to a fixing member fixing male screw (11) described below. A fixing member fixing female screw (12) and a vertical member (3) provided with a protrusion (14) for restricting movement of a supporting rod (4) described below, and rotatably supported by a lower end portion of the vertical member (3). Supporting rod (4) and a backing material holding member (5) provided with a stepped groove (15) rotatably supported by the tip of the supporting rod (4) and supporting the backing material (18). ), A tension spring (6) provided between the support rod (4) and the vertical member (3) so as to pull the support rod (4), and an elongated hole (13) in the longitudinal direction at the center. A fixing member (10) having the provided shape and rotatably supported by the supporting rod (4) for fixing the supporting rod (4) to the vertical member (3), and the fixing member (10). The fixing member fixing male screw screwed to the fixing member fixing the female screw (12) provided in the vertical member (3) to secure the vertical member (3) (1
1) A jig for supporting a backing material for welding, which comprises