KR20120100392A - Weld back gouging measurement device - Google Patents

Abstract

PURPOSE: A measurement jig of a back gouging unit is provided to easily measure the curvature and depth of the back gouging unit. CONSTITUTION: A measurement jig of a back gouging unit comprises measurement members(110a,110b,110c,110d,110e) and a body unit(150). The measurement member comprises a curvature measurement unit and a depth measurement unit. The curvature measurement unit measures the curvature of the back gouging unit. The depth measurement unit measures the depth of the back gouging unit. The body unit integrally supports the measurement members so that the measurement members are individually operated.

Description

Back gouging measurement device

The present invention relates to an apparatus for measuring a bag housing part, and more particularly, to a measuring tool of an improved bag housing part for measuring the radius and depth of the bag housing part.

Welding is used throughout the industry. In particular, in the case of ships, welding is very important in the manufacture of ships since most of them are produced by welding of steel plates.

Among the work related to welding is the work of gouging. This gouging operation is used when welding is wrong or the base metal needs to be dug out when welding steel sheet, casting steel, alloy steel, stainless steel, magnesium steel, copper alloy products, etc.

It is known that air carbon arc gouging is widely used in gouging operations.

This is a method of instantaneously melting the base material by the high temperature heat of the arc generated between the carbon electrode and the base material, and simultaneously blowing a molten metal with a strong wind of compressed air to dig a constant groove in the corresponding area. After the gouging operation, grooves having various curvatures and depths can be made according to the shape of the gouging rods.

In this regard, the back gouging operation refers to the gouging operation of the welding part from the rear to remove defects that may occur in the welding part or to observe the quality of the welding after welding the front surface during complete joint penetration. Say.

For example, if you want to weld two steel plates with the end slanted together, first weld the front part of the butt part, then dig the front part welded from the rear part (back gouging operation) to observe the quality of the weld and Back-gauging is done to eliminate the possibility of defects.

In other words, when welding the front of two butt welded steel plates based on full penetration welding, the welded back may be back-gaused because various defects may occur such as the welds may not be completely filled or the air may enter. At the welded part, the welded part is observed, and if there is no abnormality, the back side of the two iron plates joined together is finally welded to complete the welding operation.

This back gouging operation may be one of important tasks in order to prevent the need to re-new welding according to the welding quality in the final welding inspection.

On the other hand, the key is how much to form the back gouging portion in the form of a groove by digging out the welding portion during the bag gouging operation.

In fact, forming a back gouge with a large radius (also called a radius) and a deep depth can easily observe the front welding area, but it can be time, cost, effort, etc. In many cases, losses can occur.

Therefore, the bag gouging operation is generally performed according to the so-called welding procedure specification (WPS) according to the thickness of the steel sheet to be welded accordingly.

Therefore, after the back gouging operation, it is determined whether the back gouging portion, which is a groove of curvature and depth corresponding to the welding construction procedure WPS, is formed.

Up to now, when measuring the bag housing part, the curvature (or radius) of the bag housing part is measured by using a temporarily created radius gauge as needed, and also using two steel rulers. The method of measuring depth has been applied.

However, in order to measure the curvature and depth of the back gouging part, not only the curvature gauge but also two or more steel rulers must carry and carry the work to carry out the measurement of the back gouging part, which is inconvenient and cumbersome, and takes a lot of time. There is a need for an improved type of measurement tool for the measurement of the bag gouging part because of the problem.

Accordingly, the technical problem to be achieved by the present invention is to provide a measuring tool of the back housing part which is not only convenient to carry, but also can easily and conveniently perform the measurement of the curvature and depth of the back housing part. .

According to an aspect of the present invention, a plurality of curvature and depth measuring member including a curvature measuring unit for measuring the curvature (radius) of the bag housing portion, and a depth measuring unit for measuring the depth (depth) of the bag housing portion; And a measuring jig of the back housing part including a main body unit integrally supporting the curvature and depth measuring members so that the curvature and depth measuring members can be individually operated.

The curvature measuring unit may be formed by an outer wall surface of the curvature and depth measuring member partially processed to correspond to the curvature of the back gouging unit, and the depth measuring unit may be formed on a surface of the curvature and depth measuring member. It can be formed by a pattern.

On the surface of the main body portion, a first graduation pattern formed on the curvature and depth measuring member and a second graduation pattern forming a continuous graduation may be further formed.

The curvature and depth measuring members may be coupled in plural in both end regions of the main body.

The curvature and depth measuring members may be rotatably coupled to the main body by a first hinge pin so that the curvature and depth measuring members may be accommodated in the main body or exposed to the outside of the main body.

An accommodating space may be formed inside the main body to accommodate the curvature and depth measurement members, and the main part may further include a plurality of cutting grooves which are cut to be retracted to a rearward distance from the opening of the accommodating space. Can be.

Grooves may be formed on surfaces of the curvature and depth measuring members.

A reference bar may be coupled to the main body to be rotatable along a direction crossing the longitudinal direction of the main body to form a reference for measurement.

The reference bar may be rotatably coupled to the main body by a second hinge pin.

A pin supporting slot may be further formed in the main body to prevent the second hinge pin from moving away along the longitudinal direction of the main body while preventing the second hinge pin from being separated.

Embodiments of the present invention are not only convenient to carry, but also to measure the curvature (radius) and depth (depth) of the bag housing portion can be performed more easily and simply than conventional.

1 is a view for explaining the full penetration welding and bag gouging.
2 is a perspective view of a measuring jig of a bag housing part according to a first exemplary embodiment of the present invention.
3 is a side view of FIG. 2.
4 is a state diagram of use of FIG. 2.
5 is a state diagram used for the measuring jig of the bag housing according to the second embodiment of the present invention.
FIG. 6 is an enlarged structural diagram of the second hinge pin region illustrated in FIG. 5.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a view for explaining the full penetration welding and bag gouging.

Depending on the aspect, welding can vary from complete penetration welding (CJP), partial joint welding (PJP), fillet (Fillet), etc. It is widely used for drying.

Among them, full penetration welding (CJP) can be applied when welding the joints of two base materials (A, B) butted in an approximately X-shape, as shown in FIG. This full penetration welding (CJP) can be used to provide a strong weld to the two substrates (A, B), unlike other aspects of welding.

In the complete penetration welding (CJP), first, the front parts of the two base materials (A, B) are welded (W) as shown in FIG. That is, welding (W) is performed while continuously filling a weld metal (welding material) in the grooves formed on the front surfaces of the two base materials (A, B).

When the welding of the front part (W) is completed, the rear part should be welded in the same way, and various defects such as pores may be located in the initial layer of the welding part (W) of the front part.

If the rear part is ignored as it is, such welding may be performed again according to the welding quality during the final welding test, it is preferable to proceed with the quality inspection for the front welding (W).

As shown in (a) of FIG. 1, when the welding (W) quality inspection of the completed front part is to be conducted, the back gouging in the direction of arrow A in the rear part of the two base materials (A, B) as shown in FIG. After proceeding to form a groove-shaped back housing portion 1 in the junction region where the two base materials (A, B) are butted, the method of visually observing the bag housing portion (1) side from the rear portion Proceeds.

On the other hand, in the case of forming the back gouging portion 1, forming the back gouging portion 1 having a large curvature (also referred to as radius, radius) and deep depth (D, depth) is the front welding ( W) Although it may be more advantageous to observe the site, forming the back gouging portion 1 with a large curvature (R) and a deep depth (D) is a loss in many parts such as time, cost, and effort. However, if the back gouging portion 1 is formed with too small curvature R and shallow depth D, it is difficult to secure a flawless welding quality for the actual welding site.

Therefore, it is common that the bag gouging operation for forming the bag gouging portion 1 is appropriately performed according to the thickness of the steel sheet to be welded based on the so-called welding procedure specification (WPS).

After the back gouging operation, it is measured whether or not the back gouging portion 1, which is a groove of the curvature R and the depth D, corresponding to the welding construction procedure WPS is formed.

Referring to FIG. 1B, when the thickness of the base materials A and B is T and the depth of the welding W performed at the front part is D1, the welding depth of the rear part not yet welded is D2. In this state, the curvature R and the depth D may be measured after the bag housing part 1 is formed through the bag housing operation.

The curvature R of the bag housing part 1 may have a jig corresponding thereto, and it may be measured whether the inner surface curvature of the bag housing part 1 has a curvature (or radius) corresponding to the welding construction procedure WPS. And the depth (D) of the back housing portion 1 is measured from the rear end portion (C) of the base material (A, B) to the maximum depth (L) of the back housing portion (1), then the welding depth (D2) of the rear portion By subtracting 1), the depth D of the bag gouging unit 1 may be measured.

On the other hand, in order to measure the curvature (R) and the depth (D) of the bag gouging unit 1, in the prior art, it was inconvenient because the operator had to carry and carry not only a curvature gauge but also two or more steel rulers. In the case of the example, as described below, it is possible to use a new type of measuring jig 100, the measurement work for the curvature (R) and the depth (D) of the back gouging unit 1 can be easier and simpler than before.

Figure 2 is a perspective view of the measuring jig of the bag housing according to the first embodiment of the present invention, Figure 3 is a side view of Figure 2, Figure 4 is a state diagram of the use of FIG.

As shown in these figures, the measuring jig 100 of the bag housing part of this embodiment includes a plurality of curvature and depth measuring members 110a to measure the curvature R and the depth D of the bag housing part 1. 110f) and the body portion 150 integrally supporting the curvature and depth measuring members 110a to 110f so that the curvature and depth measuring members 110a to 110f may be individually operated.

All of the curvature and depth measuring members 110a to 110f measure the curvature R 120 of measuring the curvature R of the back housing 1 and the depth D of the back housing 1. The measuring unit 130 is provided.

As such, the curvature measuring unit 120 measuring the curvature R of the back gouging unit 1 and the depth measuring unit 130 measuring the depth D of the back gouging unit 1 are the curvature and the depth measuring member 110a. Since it is provided in the ˜110f) to be supported by the main body 150, it is not only convenient to carry, but also the measurement work of the curvature R and the depth D of the bag housing part 1 is easier and more convenient than before. It can be done.

For convenience of drawing, the same reference numerals are given to the curvature measuring unit 120 and the depth measuring unit 130 formed on each of the curvature and depth measuring members 110a to 110f.

The curvature measuring unit 120 is formed by the outer wall surface 120 of the curvature and depth measuring members 110a to 110f that are partially processed to correspond to the curvature G of the back gouging unit 1. That is, the curvature R of the bag housing part 1 is formed by the curvature measuring part 120 which is the outer wall surface 120 of the curvature and depth measuring members 110a to 110f that are processed in an arc shape in the corner area. Can be measured.

In the present embodiment, for example, a total of six curvature and depth measuring members 110a to 110f are provided on the main body 150, and the outer wall surface 120 formed on the six curvature and depth measuring members 110a to 110f. ), That is, the curvature measuring unit 120 is different from each other. That is, the curvature of the curvature measuring unit 120 formed on the six curvature and depth measuring members 110a to 110f may be 3.0, 3.5, 4.0, 4.5, 5.0, 5.5mm, for example.

Therefore, if the curvature R of the processed back gouging unit 1 should be 3.0 mm according to the welding construction procedure (WPS), the curvature and depth measuring member 110a having the curvature of the curvature measuring unit 120 is 3.0 mm. ), And the curvature R of the bag housing part 1 is measured with respect to the bag housing part 1 as shown in FIG. As a result of the measurement, if the curvature R of the processed bag gouging unit 1 exceeds 3.0, there is no problem, but if it is smaller than that, the size of the groove of the bag gouging unit 1 should be widened through secondary processing.

The depth measuring unit 130 serves to measure the depth D of the back gouging unit 1. The depth measuring unit 130 is formed by the first graduation pattern 130 formed on the surfaces of the curvature and depth measuring members 110a to 110f.

The first graduation pattern 130 is a graduation pattern formed on the ruler of the office supplies, the unit may be millimeters (mm) or inches (inch).

Since the depth measuring unit 130 as the first scale pattern 130 is formed on the surfaces of the curvature and depth measuring members 110a to 110f, the curvature and depth corresponding to the back housing 1 as shown in FIG. 4. When one of the measuring members 110a to 110f is pushed into contact, the depth D of the bag housing portion 1 together with the curvature R of the bag housing portion 1 may be measured.

Meanwhile, the depth D of the back gouging unit 1 may be measured by the depth measuring unit 130 as the first scale pattern 130 on the surfaces of the curvature and the depth measuring members 110a to 110f.

However, as described above with reference to FIG. 1, the depth D of the back gouging part 1 measures from the rear end C of the base material A and B to the maximum depth L of the back gouging part 1. Then, by subtracting the welding depth (D2) of the rear portion can be measured the depth (D) of the back gouging portion (1).

The first scale as the depth measuring part 130 formed in the curvature and depth measuring members 110a to 110f on the surface of the main body 150 in order to measure the depth D of the bag gouging part 1 in this manner. The second graduation pattern 151 corresponding to the pattern 130 is formed.

Since the first graduation pattern 130 and the second graduation pattern 151 have a continuity, as shown in FIG. 4, one of the curvature and depth measurement members 110a to 110f corresponding to the back gouging unit 1 is pushed. When put into contact with the curvature R of the bag housing portion 1, the depth D of the bag housing portion 1, that is, the rear end portion C of the base material (A, B) of the bag housing portion 1 The depth D of the back gouging portion 1, which is obtained by subtracting the welding depth D2 of the rear portion from the value up to the maximum depth L, can be measured.

On the other hand, the main body 150 serves to integrally support the curvature and depth measuring members (110a ~ 110f) so that the curvature and depth measuring members (110a ~ 110f) can be operated individually. That is, only the curvature and depth measuring members 110a which are actually used among the six curvature and depth measuring members 110a to 110f are exposed to the outside of the main body 150 as shown in FIG. 4, and the rest 110b to 110f are the main body parts ( It supports the curvature and depth measuring members (110a ~ 110f) to be accommodated in the 150.

2 and 3, the body portion 150, which may have an open cylindrical structure at one side thereof, may be provided as a rectangular member, and the curvature and depth measuring members 110a to 110f may have the body portion 150. A plurality of ends may be coupled to each other in the longitudinal direction of the.

In the present exemplary embodiment, since six curvature and depth measuring members 110a to 110f are disclosed, three curvature and depth measuring members 110a to 110f may be coupled to both ends of the main body 150.

Measurement of curvature of the three curvature and depth measuring members 110a, 110b, 110c coupled to one end of the main body 150 for convenience of handling and handling according to the curvature R measurement of the bag housing part 1. The unit 120 is easy to 3.0, 4.0, 5.0mm, respectively, the curvature measuring unit 120 of the three curvature and depth measuring members 110d, 110e, 110f coupled to the other end of the main body 150, respectively , 3.5, 4.5, and 5.5v, but the scope of the present invention need not be limited thereto.

The curvature and depth measuring members 110a to 110f are first hinge pins 160 so that the curvature and depth measuring members 110a to 110f may be accommodated in the body portion 150 or exposed to the outside of the body portion 150. It can be rotatably coupled to the body portion 150 by.

Of course, the structure in which the curvature and depth measuring members 110a to 110f may be accommodated in the main body 150 or exposed to the outside of the main body 150 may include a sliding structure in addition to the hinge structure of the first hinge pin 160. It can be changed sufficiently. Therefore, the scope of the present embodiment need not be limited to the hinge structure.

In order to accommodate the curvature and depth measuring members 110a to 110f in the main body 150, an accommodating space 152 in which the curvature and depth measuring members 110a to 110f are accommodated is formed. .

The volume of the accommodating space 152 has a degree of overlapping three curvature and depth measuring members 110a to 110f. When the number of curvature and depth measuring members 110a to 110f is larger or smaller than this, the storage space is included. The volume of the part 152 may also be adjusted.

The main body 150 is formed with a plurality of cutting grooves 153 which are cut out to be retracted a predetermined distance backward from the opening of the storage space 152.

The plurality of cut grooves 153, which may have a substantially half moon shape, move the curvature and depth measuring members 110a to 110f stored in the storage space 152 in the main body 150 to the outside of the main body 150. It is used as a place where the user's finger is placed when trying to take it out.

As a configuration that can be used together with the cutout groove 153, the groove 115 is provided on the surfaces of the curvature and depth measuring members 110a to 110f.

The groove 115 is a space in which the user's nails can be inserted, and the curvature and depth measuring members 110a to 110f stored in the storage space 152 in the main body 150 together with the cutting groove 153 is the main body. When you want to take out of the 150 can be usefully utilized.

Looking at the operation of the measuring jig 100 of the bag gouging unit having such a configuration as follows.

The curvature R and the depth D of the bag housing part 1 according to the thickness T of the base materials A and B are already determined.

Therefore, the operator may take out one of the curvature and the depth measuring member (110a ~ 110f) corresponding to it from the body portion 150 to use. In this case, first, the finger is placed on the cutting groove 153 of the main body 150, and the nail is inserted into the groove 115 to take out any one of the curvature and depth measuring members 110a to 110f.

For example, when the curvature and depth measuring member 110a corresponding to the curvature R of the back housing part 1 is selected to 3.0 mm, the curvature and depth measuring member 110a is pushed onto the back housing 1 as shown in FIG. 4. Put in contact.

Then, the curvature R of the bag housing part 1 may be measured by the curvature measurer 120 of the curvature and depth measuring member 110a. If the curvature R of the bag housing part 1 is 3.0, If it is more than mm, there is no problem, but if it is smaller than that, the size of the groove of the bag gouging unit 1 should be widened through the secondary processing.

In addition to the curvature R of the bag housing portion 1, the depth D of the bag housing portion 1 may also be measured. That is, when the curvature and depth measuring member (110a) is pushed in contact with the back housing portion 1 as shown in Figure 4 from the rear end portion (C) of the base material (A, B) to the maximum depth (L) of the back housing portion (1) The value of can be measured, and subtracting the welding depth (D2) of the rear portion from this value allows the desired depth (D) of the bagging unit (1) to be measured.

If the depth D of the bag housing part 1 is also longer than the required value, there is no problem, but if it is smaller than that, the depth of the groove of the bag housing part 1 should be processed more deeply.

As described above, according to the present exemplary embodiment, the curvature measuring unit 120 and the depth measuring unit 130 capable of measuring the curvature R of the bag housing part 1 and the depth D of the bag housing part 1 may be measured. Since it is provided on the curvature and depth measuring members 110a to 110f and is supported by the main body 150, it is not only convenient to carry, but also the curvature R and the depth D of the bag housing part 1. The measurement operation can be performed more easily and simply than conventionally.

FIG. 5 is a diagram illustrating a use state of the measuring jig of the bag housing part according to the second exemplary embodiment of the present invention, and FIG. 6 is an enlarged structural diagram of the second hinge pin region illustrated in FIG. 5.

Referring to these figures, the measuring jig 200 of the bag housing part of the present embodiment is the same as the first embodiment except that the reference bar 210 is further provided. Accordingly, the same reference numerals are given to the drawings of the first embodiment without explanation.

The reference bar 210 provided in the measuring jig 200 of the back housing part of the present embodiment is coupled to the main body 150 to form a reference for the measurement. In particular, when the depth D of the bag housing portion 1 is to be measured, a reference of the measurement is formed.

The depth D of the bag housing portion 1 is obtained by subtracting the welding depth D2 of the rear portion from the value from the rear end portions C of the base materials A and B to the maximum depth L of the bag housing portion 1. The depth D of the bag gouging part 1 can be reliably determined when the measuring jig 200 of the bag gouging part of the present embodiment is erected correctly without being inclined at the corresponding position.

Otherwise, when the measuring jig 200 of the bag housing part is arranged at an angle, it is difficult to predict that the depth D of the bag housing part 1 is accurate.

Therefore, in particular, when measuring the depth (D) of the bag gouging unit 1 is advantageous if there is a reference of the measurement, the reference bar 210 performs this role.

After the reference bar 210 is disposed at the rear ends C of the base materials A and B as shown in FIG. 5 to form a reference plane, the measuring jig 200 is precisely crossed with respect to the reference bar 210 so that the back gouge 1 It serves as an aid to measure the depth (D).

However, even though the measuring jig 200 of the back housing part of the present embodiment is not used, the reference bar 210 may be inconvenient to carry when the reference bar 210 protrudes as shown in FIG. 5. It is preferable to be coupled to the main body 150 to be rotatable along a direction crossing the direction.

To this end, the reference bar 210 may be rotatably coupled to the main body 150 by the second hinge pin 220.

In addition, a pin support slot 230 is formed in the main body 150 to allow the second hinge pin 220 to move along the longitudinal direction of the main body 150 while preventing the second hinge pin 220 from being separated. .

Therefore, the reference bar 210 may be rotated in the Q direction of FIG. 5 with respect to the main body 150 by the second hinge pin 220, and also pin support slot 230 in the P direction of FIG. ), And can form the reference of the measurement at the desired position.

For reference, in order to form a reference for measurement after the reference bar 210 is unfolded in parallel with the main body 150 and intersects with the main body 150 as shown in FIG. 5, the reference bar 210 may be a main body ( It may be desirable for the angle to be adjusted such that it may be parallel or intersecting with respect to 150, which may increase ease of use. In consideration of this matter, the second hinge pin 220 may be preferably provided with a step hinge capable of adjusting the angle step by step.

Although the present embodiment has been described in detail with reference to the drawings, the scope of the present invention is not limited to the above-described drawings and descriptions.

In the case of the above-described embodiment, the X-shaped full penetration welding (CJP) is shown and described with reference to FIG. 1, but the shape of the full penetration welding (CJP) may vary from the X shape of FIG. It is not necessary to limit the scope of the present invention to the drawings shape.

In the above-described embodiment, six curvature and depth measuring members 110a to 110f are provided in total of three on each side, but the number of curvature and depth measuring members 110a to 110f may be at least or more than six.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100: measuring jig 110a ~ 110f: back curvature part: curvature and depth measuring member
115: groove 120: curvature measuring unit
130: depth measuring unit 150: main body
151: second graduation pattern 152: storage space
153: cutting groove 160: first hinge pin

Claims (10)

A plurality of curvature and depth measuring members including a curvature measuring unit measuring a curvature of a bag housing part and a depth measuring unit measuring a depth of the bag housing part; And
And a main body portion integrally supporting the curvature and depth measuring members so that the curvature and depth measuring members can be individually operated. The method of claim 1,
The curvature measuring unit is formed by the outer wall surface of the curvature and depth measuring member partially processed to correspond to the curvature of the back gouging unit,
The depth measuring part is a measuring tool of the back housing part formed by a first graduation pattern formed on the surface of the curvature and the depth measuring member. The method of claim 2,
The measuring jig of the back gouging unit is further formed on the surface of the main body portion is further formed with a first graduation pattern formed on the curvature and depth measuring member and a second graduation pattern forming a continuous graduation. The method of claim 1,
The curvature and depth measuring members are coupled to each other in the back housing portion of the main body portion. The method of claim 1,
The measuring tool of the back gouging part is rotatably coupled to the main body by the first hinge pin so that the curvature and the depth measuring members can be accommodated in the main body or exposed to the outside of the main body. . The method of claim 5,
Inside the main body portion is formed a storage space for accommodating the curvature and depth measuring members,
The measuring part of the back housing portion is further formed in the main body portion is formed with a plurality of cutting grooves are cut to be retracted a predetermined distance backward from the opening of the storage space. 7. The method according to claim 1 or 6,
The measuring jig of the back housing portion in which a groove is formed on the surface of the curvature and depth measuring members. The method according to claim 1 or 3,
And a reference bar coupled to the main body to be rotatable along a direction crossing the longitudinal direction of the main body to form a reference bar. 9. The method of claim 8,
The reference bar is the measuring jig of the back housing portion rotatably coupled to the body portion by a second hinge pin. 10. The method of claim 9,
And a pin support slot is further formed in the main body portion to prevent the second hinge pin from moving away along the longitudinal direction of the main body portion.

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