JPH06170586A - Display method and device for peripheral direction welding range nozzle and the like - Google Patents

Abstract

PURPOSE:To display the welding range to be cladded by welding so as to execute correctly cladding by welding. CONSTITUTION:A V-shape abutting part 2 of a main body 1 is abutted on the outer periphery of a nozzle to be welded, a marking-off pin 20 in inserted in a piece 9 horizontally passing through the bottom center of V-shape of the abutting part 2 and supported on the main body 1 in a sliable state and a bracket 16 horizontally provided above the main body 1 with a rod 15 in a shiftable state, the marking-off pin 20 is pressed to contact with the surface of a cylindrical body on which the nozzle is welded, the piece 9 is slid against the main body 1, and the bracket 16 is horizontally shifted against the rod 15. The marking-off pin 20 is kept in parallel with the surface of the nozzle having a specific distance between the pin and the nozzle, the piece 9 is fixed on the main body 1 and the bracket 16 is fixed on the rod 15. Then, the abutting part 2 is moved along the outer circumference of the nozzle and the surface of the cylindrical body is marked with the tip end 28 of the marking-off pin 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circumferential direction of a nozzle or the like in which a welding build-up range is marked when welding a pipe-shaped nozzle or the like to a cylindrical body such as a pipe offset at a right angle. The present invention relates to a welding range display method and apparatus.

[0002]

2. Description of the Prior Art When welding a cylindrical pipe side, a pipe-shaped nozzle base, etc. to a mother pipe in a direction perpendicular to the pipe side,
It is required to build up the pipe-shaped nozzle from the outer circumference in a certain size range.

[0003]

Conventionally, after welding a nozzle on a pipe side in a direction perpendicular to the pipe, the dimensions of the welding range are measured and the place where there is too much build-up is ground, and the place where the build-up is insufficient. Was additionally welded and finished so that the build-up range was a constant dimension from the outer circumference of the nozzle.

For this reason, conventionally, there has been a drawback that the work of removing the padding or adding the work is required, which is troublesome.

The present invention solves such troublesome drawbacks, displays the welding range to be built up in advance, and displays the welding range in the circumferential direction of the nozzle stub or the like so that the welding can be built up accurately. And an apparatus thereof.

[0006]

According to the present invention, a V-shaped contact portion having a width at the top and bottom of the main body is brought into contact with the outer periphery of the nozzle to be welded, and the V-shaped bottom portion of the contact portion is provided. A scoring needle insertion hole of a piece which is horizontally slidably supported by the main body through a center in a horizontal direction, and a scoring needle insertion hole of a bracket provided on the upper part of the main body so as to be horizontally displaceable through a rod. A scoring needle is inserted through the hole, the tip of the scoring needle is pressed against the surface of a cylindrical body for welding the nozzle, the piece is slid with respect to the main body, and the bracket is attached to the rod. And horizontally displace the scoring needle at a predetermined distance from the outer periphery of the nozzle to maintain the posture parallel to the surface of the nozzle to fix the bridge to the main body and the bracket to the rod. Fixed,
Thereafter, the V-shaped contact portion is moved along the outer periphery of the nozzle, and a scoring line is displayed on the surface of the cylindrical body at the tip of the scoring needle, etc. And a main body having a V-shaped abutting portion having an upper and lower width, and a V-shaped bottom center of the abutting portion horizontally penetrating and horizontally sliding on the main body. A piece movably supported, a scoring needle insertion hole vertically formed in the piece on the center of the V-shaped contact portion, and piece positioning means for fixing the piece to the main body. A rod vertically provided on the upper surface of the main body, a bracket displaceable horizontally with respect to the rod, and a scoring needle insertion hole vertically bored in the bracket,
A surrounding of a nozzle or the like, characterized by comprising a scoring needle inserted through the scoring needle insertion hole of the piece and the scoring needle insertion hole of the bracket, and a spring for pressing the scoring needle downward. The present invention relates to a direction welding range display device.

[0007]

The scoring needle is held at a predetermined distance from the outer periphery of the nozzle to be welded and in a posture parallel to the surface of the nozzle, and has a V-shaped contact portion along the outer periphery of the nozzle. By moving the scoring needle, the tip of the scoring needle is displayed on the surface of the cylindrical body at a position spaced a predetermined distance from the outer periphery of the nozzle on the horizontal projection plane, and the circumferential welding range of the nozzle is displayed. To clarify.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of the device of the present invention, FIG. 2 is a vertical side view of FIG. 1, and FIG. 3 is a sectional view taken along the line III--III of FIG. Body 1
The front surface (right side in the drawing) of the V-shape extends in a V-shape, and a V-shaped contact portion 2 extending in the vertical direction is integrally fixed to the main body 1 by a bolt 3.

FIG. 4 is a cross-sectional plan view of the main body 1. The front surface of the main body 1 and the valley of the contact portion 2 have a V-shaped contact portion 2.
An opening 5 is formed in the direction of the center 4 and a rectangular space 6 is formed at the rear of the opening 5 as shown in FIGS. 1 and 2. Further, a window portion 7 is provided behind the space portion 6, and a bolt insertion hole 8 reaching the space portion 6 from the rear portion of the main body 1 through the window portion 7 is formed in the center 4 direction. A piece 9 is fitted into the opening 5 and the space 6 as shown in FIGS. 1 to 3, and is supported so as to be horizontally slidable in the direction of the center 4.

FIG. 5 is a cross-sectional plan view of the piece 9, in which a scoring needle insertion hole 10 is vertically formed in the front part of the piece 9.
A female screw hole 11 is formed in the rear portion of the bridge 9 horizontally toward the front. The piece 9 penetrates the opening 5 as shown in FIGS. 1 to 3 while being supported by the opening 5 and the space portion 6 of the main body 1, and the scoring needle insertion hole 10 has a V-shaped contact portion 2. It is located on the center 4 of the (see FIG. 3).

A piece 9 supported by the opening 5 and the space 6
As shown in FIGS. 1 to 3, a tip of a bolt 12 inserted into a bolt insertion hole 8 (see FIG. 4) from the rear portion of the main body 1 is screwed into the main body 1, and the rear portion of the main body 1 and the window portion 7 are screwed together. Has
Nuts 13 and 14 screwed to the bolt 12 are located. Then, when the nuts 13 and 14 are loosened and the bolt 12 is rotated, the piece 9 moves along the center 4 (see FIG. 3) of the V-shaped contact portion 2 and on the center 4, the scoring needle insertion hole 10 is formed. The position of can be adjusted. When the nuts 13 and 14 are tightened after moving the piece 9, the piece 9 cannot move in the adjusted position. As described above, the bolt 12, the nuts 13 and 14 constitute a positioning means for positioning the piece 9 with respect to the main body 1. At this time, the nut 14 of the window portion 7 may be fixed to a predetermined position of the bolt 12 by a pin or the like.

As shown in FIGS. 1 and 2, a rod 15 engraved with a male screw is vertically provided on the upper surface of the main body 1, and an elongated hole 17 of a bracket 16 is provided near the upper end of the rod 15. When fitted, the bracket 16 can be repositioned relative to the rod 15 by loosening or tightening the nut 18.

A scoring needle insertion hole 19 is vertically formed on the tip side of the bracket 16, and the scoring needle insertion hole 1 is formed.
The scoring needle 20 can be inserted through the scoring needle insertion hole 10 of the frame 9 and the frame 9. The scoring needle 20 has a large number of pin insertion holes 21 formed therein,
The pin 22 is inserted into one of the pin insertion holes 21, and the spring 23 is inserted between the pin 22 and the lower surface of the bracket 16.
The scoring needle 20 is pressed downward by interposing.

Next, a method of using the above-mentioned device will be described.

FIG. 6 is a vertical sectional side view showing the usage state of the apparatus of FIG. 1, and FIG. 7 is a sectional view taken along line VII-VII of FIG.
Reference numeral 4 denotes a cylindrical body such as a pipe or mother tube, and 25 denotes a pipe-shaped nozzle, which is placed on the surface of the cylindrical body 24 in a state where the central axis of the cylindrical body 24 and the central axis of the nozzle 25 are orthogonal to each other. The table 25 is to be welded. And the meat filling 26 in this case
Is required to be performed at a predetermined distance 27 such as 10 mm from the outer circumference of the nozzle 25.

First, the vertical V-shaped contact portion 2 integrally fixed to the main body 1 is brought into contact with the outer periphery of the nozzle 25, the nuts 13 and 14 are loosened, and the bolt 12 is rotated to rotate the piece. 9 in the body 1
With respect to the surface of the cylindrical body 24 at a position a predetermined distance 27 from the outer circumference of the nozzle 25, the tip 28 of the scoring needle 20 which is displaced horizontally with respect to the scoring needle insertion hole 10 of the bridge 9. Adjust to touch.

Further, the nut 18 is loosened to displace the bracket 16 horizontally, and the scoring needle insertion hole 19 of the bracket 16 is inserted.
The upper end position of the scoring needle 20 that is inserted through the nozzle is adjusted so that the central axis of the scoring needle 20 is parallel to the surface of the nozzle 25, and the tip 28 of the scoring needle 20 is again moved to the nozzle. Two
After adjusting the position of the piece 9 so as to come into contact with the surface of the cylindrical body 24 at a position spaced a predetermined distance 27 from the outer periphery of the nut 5, the nut 1
The pieces 9, 14 and 18 are tightened to fix the piece 9 so as not to displace with respect to the main body 1, and the bracket 16 so as not to displace with respect to the rod 15. In this state, the tip 28 of the scoring needle 20 is attached to the nozzle 25 by the force of the spring 23.
It is pressed against the surface of the cylindrical body 24 at a position spaced a predetermined distance 27 from the outer periphery of the cylinder.

Next, when the V-shaped abutting portion 2 is moved along the outer periphery of the nozzle 25 while being in contact with the nozzle 25, the tip 28 of the scoring needle 20 is moved from the outer periphery of the nozzle 25. Predetermined distance 27
It moves along the outside of the nozzle 25 while keeping the state of being covered. Since the surface of the cylindrical body 24 is a curved surface, the vertical position of the tip 28 of the scoring needle 20 changes as the scoring needle 20 moves, but the pin insertion hole 21 is contracted while the spring 23 contracts or extends. Since the scoring needle 20 is pressed downward via the pin 22 that is inserted through, the tip 28 of the scoring needle 20 is always in pressure contact with the cylindrical body 24, and the nozzle 25 on the surface of the cylindrical body 24 A scoring line will be displayed at a position spaced a predetermined distance 27 from the outer periphery of the.

A predetermined distance 27 over the entire circumference of the nozzle 25
After displaying the marked scoring line, the above-mentioned device is removed, and welding is performed so that the built-up 26 (see FIG. 6) is formed in the displayed scoring line, whereby the build-up is performed in an accurate range. Welding can be performed.

[0021]

According to the present invention, the welding range to be overlaid is displayed so that the welding can be accurately overlaid. Therefore, it is not necessary to delete or add the overlaid after the welding, and the accurate welding operation can be performed. There is an effect that can be easily done.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the device of the present invention.

2 is a vertical side view of FIG.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a cross-sectional plan view of the main body.

FIG. 5 is a cross-sectional plan view of a piece.

FIG. 6 is a vertical sectional side view showing a usage state of the apparatus of FIG.

7 is a sectional view taken along line VII-VII in FIG.

[Explanation of symbols]

 1 main body 2 contact part 4 center 9 piece 10 scoring needle insertion hole 15 rod 16 bracket 19 scoring needle insertion hole 20 scoring needle 23 spring 24 cylindrical body 25 nozzle 27 predetermined distance 28 tip 29 piece positioning means

Claims (2)

[Claims] 1. A V-shaped contact portion having a width above and below the main body is brought into contact with the outer periphery of a nozzle to be welded, and the center of the V-shaped bottom portion of the contact portion is horizontally penetrated. A scoring needle is inserted through a scoring needle insertion hole of a piece which is horizontally slidably supported on the main body and a scoring needle insertion hole of a bracket which is horizontally displaceable through a rod on an upper portion of the main body. Then, the tip of the scoring needle is pressed against the surface of the cylindrical body for welding the nozzle, the piece is slid with respect to the main body, and the bracket is displaced horizontally with respect to the rod, The writing needle is placed at a predetermined distance on the outer circumference of the nozzle to maintain the posture parallel to the surface of the nozzle to fix the bridge to the main body and the bracket to the rod, and then the V The character-shaped contact portion is moved along the outer periphery of the nozzle so that the surface of the cylindrical body is moved by the tip of the scoring needle. A method for displaying the circumferential welding range of a nozzle, etc., which is characterized by displaying a scoring line. 2. A main body having a V-shaped abutting portion having an upper and lower width, and a V-shaped bottom center of the abutting portion which horizontally penetrates and is supported by the main body so as to be horizontally slidable. Formed piece, a scoring needle insertion hole formed perpendicularly to the piece on the center of the V-shaped contact portion, piece positioning means for fixing the piece to the main body, and the main body of the main body. A rod provided vertically on the upper surface, a bracket provided so as to be horizontally displaceable with respect to the rod, and a scoring needle insertion hole formed vertically in the bracket,
A surrounding of a nozzle or the like, characterized by comprising a scoring needle inserted through the scoring needle insertion hole of the piece and the scoring needle insertion hole of the bracket, and a spring for pressing the scoring needle downward. Direction welding range display device.