JP2001246499A - Assembly jig for butt welding member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a butt weld joint free from any misalignment in forming the butt weld joint of two plate members. SOLUTION: This assembly jig of members to be butt-welded which form a burr weld joint comprises two side plates 1 to keep plate members 7 in the same horizontal plane when they are butted against each other, a fixed shaft 2 and a fixing shaft 10 to fit and face the side plates 1 to each other at predetermined space, and a pressure drive unit which comprises a dynamic shaft 3, a working arm 4, a sucker 5 and a spring, 6, locks the working arm 4 to the fixed shaft 2 via a spring 6 between two side plates 1, and presses the dynamic shaft 3 thereagainst to suck the sucker 5 to the plate members 7, and when the pressure of the dynamic shaft 3 is released, two plate members 7 are sucked to each other by the reaction of the spring 6 of the pressure drive unit to form the butt weld joint with excellent accuracy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a butt joint of two flat members, for example, a jig for assembling a butt joint member to form a butt weld joint.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional butt-welding joint of a flat plate member 7 is formed by temporarily abutting two butted surfaces of two flat plate members 7 and then performing a welding joint.
In the formation of the above-mentioned butt weld joint, generally, two flat members 7 are arranged on a smooth assembly table (not shown), and a butt weld joint is formed while the flat member 7 is kept horizontal.

However, when the butt weld joint is formed while maintaining the two flat members 7 horizontal, the two flat members 7 do not exert a restraining force on the butted surfaces themselves, so that the two flat members 7 are not affected by external force. The butt surfaces are separated from each other, or misalignment occurs in the butt weld joint as shown in FIG.

[0004]

In the conventional formation of the butt-welded joint of the flat plate members 7, prior to forming the welded joint, the two flat plate members 7 are separately locked by a fixed clamp so as not to separate from each other, or In order to fix with a hand other than the tacking worker, labor was required for welding preparation.

Further, when the assembling platen is not a perfect horizontal surface and a horizontal surface cannot be secured, or in a field work or the like where the assembling platen cannot be prepared, a temporary assembling is performed and the two flat plate members 7 are brought into abutment at the butted surfaces. In this case, it is not easy to keep the two flat plate members 7 in the same horizontal plane, and misalignment tends to occur, so that the work efficiency of forming the butt-welded joint is very poor.

[0006]

According to the first aspect of the present invention, as shown in FIG. 1, when two flat plate members 7 abut against each other, the two flat plate members 7 are abutted while maintaining the horizontal position in the same horizontal plane to form a welded joint. When the two flat plate members 7 are butted with each other in a jig for assembling and joining members,
Two side plates 1 for maintaining the same horizontal plane, a fixed shaft 2 and a fixed shaft 10 for mounting and facing the two side plates 1 at a predetermined interval, a dynamic shaft 3, a processing arm 4, a suction cup 5, and a spring 6 A pressure drive unit that locks the pressure arm 4 between the two side plates 1 via the spring 6 on the fixed shaft 2 and presses the dynamic shaft 3 to attract the suction cup 5 to the flat plate member 7. Then, the pressing of the moving shaft 3 is released, and a force acts in a direction in which the two flat plate members 7 are attracted to each other by a reaction force of the spring 6 of the pressurizing drive unit, so that there is no misalignment in a horizontal plane. It is an assembly jig of a butt joint member in which a butt weld joint is formed.

In the invention of claim 2 at the time of filing, the first invention has a horizontal butt joint, while the second invention has a butt joint which is orthogonal as shown in FIG. In a butt-joining member assembling jig that forms a butt-welded joint while maintaining an orthogonal plane when the flat plate members 7 are butted, two butt joints for forming the orthogonality when the two flat plate members 7 are butted. 2 side plate 9
A pressure shaft formed by a fixed shaft 2 and a fixed shaft 10 for mounting and opposing the two second measuring plates 9 at a predetermined interval, a dynamic shaft 3, a processing arm 4, a suction cup 5 and a spring 6. A pressure drive unit that locks the suction cup 5 to the flat plate member 7 by hooking the suction shaft 4 to the fixed shaft 2 via a spring 6 between the two second side plates 9 and pressing the moving shaft 3; When the pressing of the shaft 3 is released, a force acts in a direction in which the two flat plate members 7 are attracted to each other by the reaction force of the spring 6 of the pressure driving unit, and an orthogonal butt weld joint having no misalignment is formed. It is a jig for assembling a butt joint member.

[0008] The invention of claim 3 at the time of filing the application
The angle θ formed by the fulcrum A of the fixed shaft 2, the contact point B of the hook 3a of the moving shaft 3 and the tapered line C of the hook 3a is in the range of 90 ° <θ <120 °.
Or a jig for assembling a butt joint member according to claim 2.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is the same as the description of the first invention for solving the problems, and
As shown in FIG. 1, when the two flat plate members 7 are butted, the two flat plate members 7 are butted in a butt-joining member assembling jig in which the two flat plate members 7 are butt-butted to form a weld joint while being kept in the same horizontal plane. The two side plates 1 for maintaining the same horizontal plane, a fixed shaft 2 and a fixed shaft 10 for mounting and arranging the two side plates 1 at a predetermined interval, a dynamic shaft 3, a processing arm 4, and a suction cup. 5 and a spring 6, the pressure arm 4 is hung between the two side plates 1 via the spring 6 on the fixed shaft 2 and the moving shaft 3 is pressed against the suction arm 5, thereby causing the flat plate member 7 to be pressed.
The pressing of the pressure driving unit and the moving shaft 3 is released, and a force acts in a direction in which the two flat plate members 7 are attracted to each other by the reaction force of the spring 6 of the pressure driving unit. This is a jig for assembling a butt joint member that forms a butt weld joint in a horizontal plane having no difference.

[0010]

Embodiment 1 Embodiment 1 is a jig for assembling a butt joint member having means for solving the above-mentioned problems. First,
First Embodiment A first embodiment will be described with reference to FIGS. FIGS. 1 and 2 are a front view and a side view showing a state in which the butting surfaces of two flat plate members 7 are brought into abutment by using the assembling jig of the butting and joining member of the present invention.

As shown in FIGS. 1 and 2, a jig for assembling a butt joint member includes a side plate 1, a fixed shaft 2, a moving shaft 3, a pressure arm 4, a suction cup 5, a spring 6, and a fixed shaft 10.
It is formed by.

When butting two flat plate members 7,
In order to keep the two side plates 1 in the same horizontal plane, the two side plates 1 are mounted and opposed by a fixed shaft 2 and a fixed shaft 10 at a predetermined interval.

The pressure drive section is formed by a moving shaft 3, a pressure arm 4, a suction cup 5, and a spring 6.

Next, an operation procedure for forming a butt-welded joint using the jig for assembling the butt-joint member of the first embodiment while maintaining the two flat plate members 7 on the same horizontal plane will be described.

As shown in FIG. 2A, an assembling jig for the butt joint member is laid over a predetermined position on the upper surface of the two flat plate members 7, and before the moving shaft 3 is pressed, the suction cup 5 is moved. The spring 6 moves to the position of point P by the pulling force.

As shown in FIG. 2B, by pressing both moving shafts 3 at the same time, the suction cup 5 is pressed to a predetermined position on the upper surface of the flat plate member 7 while being moved to the position of point P. Then, the suction cup 5 is adsorbed to the flat plate member 7.
At this time, the spring 6 expands and the reaction force generates a pulling force of the flat plate member 7.

Next, when the pressing of both moving shafts 3 is released, the moving shafts 3 are mutually moved by the reaction force of the spring 6 while the two flat plate members 7 maintain the same horizontal plane as shown in FIG. The force in the direction attracted to acts on
A horizontal butt joint without misalignment can be obtained, and a highly accurate welded joint can be obtained.

FIG. 3 is a detailed view of the pressure drive unit. In order to make the hook portion 3a of the moving shaft 3 float smoothly when the pressing portion is released from the pressing in the pressing drive portion, the fulcrum A of the fixed shaft 2 at the time of pressing, the contact point B of the hook portion 3a of the moving shaft 3, and the taper of the hook portion 3a. The condition is that the angle θ formed with the line C is larger than 90 °. However, if the angle θ is too large, the hook portion 3a of the moving shaft 3 does not float smoothly when pressed and released. From the experimental results, it has been confirmed that the angle at which the hook portion 3a of the moving shaft 3 smoothly lifts when pressed and released is in the range of 90 ° <θ <120 °.

FIG. 4 shows that each operation time for forming a butt-welded joint of two flat plate members 7 is represented by a plate thickness of 2 mm × width of 100 mm.
arc welding (Illuminite welding rod, J
FIG. 9 is a diagram comparing and measuring the time required for two-point tack welding for fixing and maintaining a welded joint according to IS standard D4301 and using a rod diameter of 2 mm. In FIG. 4, the present invention shows the working time up to tack welding when the assembling jig of the butt joint member of the first embodiment is used. In the prior art 2, the work time when two persons work without using the assembly jig of the first embodiment is shown.

As shown in FIG. 5, each operation time for forming a butt-welded joint of two plate members 7 having different plate thicknesses is as follows.
Sheet thickness 2mm x width 100mm x length 200mm and sheet thickness 1m
Using two mild steel plates of mx 100 mm x 200 mm in length, the welded joint is fixed by coated arc welding with a welding current of 50 A (Illuminite welding rod, JIS D4301 equivalent, rod diameter: 2 mm). It is the figure which measured and compared the time required for two-point tack welding for maintaining.
In FIG. 5, the present invention shows the working time until tack welding when the assembling jig of the butt joint member of the first embodiment is used. In the prior art 2, the work time when two persons work without using the assembly jig of the first embodiment is shown.

As shown in FIG. 6, each operation time for forming a butt-welded joint of two flat plate members 7 requiring the root gap Rg is measured and compared under the same conditions as above. In FIG. 6, the present invention shows the working time when the assembling jig of the butt joint member of the first embodiment is used,
Prior art 1 shows the work time when one person works without using the assembly jig of the first embodiment, and prior art 2 shows the work time when two people work without using the assembly jig of the first embodiment. The work time is shown.

FIG. 8 is a view showing a state in which a butt joint in which two flat plate members 7 are perpendicular to each other is formed by using the assembling jig of the butt joint member of the second embodiment.

As shown in FIG. 7, the assembling jig of the butt joint member according to the second embodiment includes a fixed shaft 2, a moving shaft 3, a pressure arm 4, a suction cup 5, a spring 6, a second measuring plate 9, and a fixed plate. The shaft 10 is formed.

The assembling jig of the butt joint member according to the second embodiment is used to form a butt weld joint while maintaining the orthogonal plane when the two flat plate members 7 are butted.
The two second side plates 9 are fixed to the fixed shaft 2 at a predetermined interval.
7 and is attached to and fixed to the fixed shaft 10, and as shown in FIG. In the figure, the other components have the same reference numerals as those in the first embodiment shown in FIGS. 1 to 3 and the detailed description thereof will be omitted.

Next, a description will be given of an operation procedure for forming a butt-welded joint while maintaining the orthogonality when two flat plate members 7 are butt-joined by using the butt-joining member assembling jig of the second embodiment.

As shown in FIG. 8A, two flat plate members 7 are respectively arranged on two planes perpendicular to the surface plate 8, and the orthogonal bisecting reference plane AA shown in FIG. The assembling jig of the butt joint member according to the second embodiment is laid at a predetermined position on the upper surface of the two flat plate members 7 arranged on a plane that bisects the plane.

As shown in FIG. 8 (a), both moving shafts 3 are pressed almost at the same time against a plane member 7 which is orthogonal. At the time of pressing, the spring 6 is extended and the suction cup 5 attracts the suction cup 5 to the flat plate member 7. Next, when the opposite ends of the fixed shafts 10 of the two moving shafts 3 are separated from the suction cup 5 to release the force, the plate members 7 are respectively moved along the right-angled surfaces on the platen by the reaction force of the spring 6. As shown in FIG. 8 (b), the welds are drawn toward each other in the directions of the vertices 8a of the two perpendicular planes of the surface plate 8, and an orthogonal welded joint with no misalignment and high accuracy is obtained.

[0028]

According to the first embodiment, in the formation of the butt-welded joint using the butt-joining member assembling jig, the two flat plate members 7 are fixed so as not to be separated before forming the welded joint. Very easy to form. Also, even in the field work where the assembling surface plate is not a perfect horizontal surface and the assembling surface plate cannot be prepared, it is easy to keep the two planar members in the same horizontal surface, and it is difficult for misalignment to occur. Can be formed. 4 to 6, the case where the assembly jig for the butt joint member of the first embodiment is used and the time required for working alone or forming a weld joint by two people without using the assembly jig. In comparison, the working time for tacking at two or more points for fixing and maintaining the formed welded joint can be reduced from 1/3 to 1/2. Furthermore, when the assembly jig for the butt joint member of the second embodiment is used, when forming the orthogonal butt weld joint of the flat plate member 7, the orthogonal butt joint can be shortened by a simple operation using an inexpensive assembly jig. It can be formed accurately in time.

[Brief description of the drawings]

FIG. 1 is a front view and a side view showing a configuration of an assembly jig for a butt joint member according to the present invention.

FIG. 2 is a view showing a state in which a welding joint is formed by butt-joining two flat plate members while keeping the horizontal plane in the same horizontal plane, using the butt-joining member assembling jig of the present invention. FIG.

FIG. 3 is a detailed view of a pressure driving unit of an assembly jig for a butt joint member.

FIG. 4 is a graph showing the time required to form a weld joint by butt-connecting two flat members, when an assembling jig for a butt-joining member is used, and when working alone and without using the jig; It is a comparison of the time spent by people working.

FIG. 5 is a graph showing the time required to form a weld joint by butt-connecting flat plate members having different plate thicknesses, when using a butt-joining member assembling jig, and working alone without using the above-mentioned jig; And the time spent by two people working.

FIG. 6 illustrates the time required to form a weld joint by butting flat members requiring a root gap;
When using a jig for assembling the butt joint members, the work time is compared with the work time alone and the work time by two people without using the jig.

FIG. 7 is a side view showing a configuration of a jig for assembling a butt joint member according to the second invention.

FIG. 8 is a side view showing a state in which a butt joint in which two flat plate members are made orthogonal to each other is formed by using a jig for butt joint members of the second invention.

FIG. 9 is a perspective view showing a state in which two flat plate members are brought into contact with a butt surface.

FIG. 10 is a perspective view showing a state in which two flat plate members are brought into abutment with the abutting surface to make a difference.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side plate 2 Fixed shaft 3 Moving shaft 3a Hook part 4 Pressure arm 5 Suction cup 6 Spring 7 Flat plate member 8 Surface plate 9 Second side plate 10 Fixed shaft

Claims (3)

[Claims] 1. When two flat members are abutted,
In a butt-joining member assembling jig for forming a weld joint by butt while keeping the horizontal in the same horizontal plane, when the two flat members are butt-joined, two side plates for maintaining the same horizontal plane, and the two side plates, A pressure shaft formed of a fixed shaft and a fixed shaft for mounting and opposing the side plates at a predetermined interval, a moving shaft, a processing arm, a suction cup and a spring is engaged between the two side plates by a fixed shaft via a spring. A pressing drive unit that causes the suction cup to be attracted to the flat plate member by pressing the moving shaft, and the pressing of the moving shaft is released, and the two flat plate members are attracted to each other by the reaction force of the spring of the pressing drive unit. A jig for assembling a butt joint member in which a butt weld joint is formed in a horizontal plane without any misalignment due to a force acting in a given direction. 2. When two flat members are abutted,
In an assembly jig for a butt joint member forming a butt weld joint while maintaining an orthogonal plane, when the two flat plate members are abutted, two second side plates for forming an orthogonality and the two second side plates are formed. A pressure arm formed by a fixed shaft and a fixed shaft for mounting and opposing the measuring plates at predetermined intervals, a moving shaft, a processing arm, a suction cup and a spring, is fixed between the two second side plates via a spring. A pressure drive unit that locks the suction cup to the flat plate member by hooking on the shaft and presses the moving shaft; and a pressing force of the moving shaft is released, and the reaction force of a spring of the pressure driving unit releases the pressure driving unit. A jig for assembling a butt joint member in which a force acts in a direction in which the flat plate members are attracted to each other to form an orthogonal butt weld joint without misalignment. 3. An angle θ formed by a fulcrum A of a fixed shaft, a contact point B of a hook portion of the moving shaft, and a taper line of the hook portion of the moving shaft of the pressure driving unit is 90 ° <θ <120.
The jig for assembling a butt joint member according to claim 1 or 2, wherein the jig is in the range of ゜.