JP2000321003A - Instrument for inspecting length of welding leg - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve an inspection of the leg lengths of fillet welding easily with simple handling and a prevention of damages to an inspection plate during the unuse period. SOLUTION: This instrument for inspection to determine whether the welding leg lengths L1 and L2 are larger than the necessary dimensions or not, when plate materials 1 and 2 orthogonal to each other are joined by fillet welding is provided with a plurality of inspection plates 6 to be housed freely in or out of a housing body. The inspection plates 6 each have a first reference surface 22 formed at the tip thereof and a second reference surface 23 orthogonal to the first reference surface 22 and a notch part 24 addressing varied necessary dimensions of the leg lengths formed at an angle part at which the first reference surface 22 crosses the second reference surface 23. The size of the notch part 24 is made larger than the necessary dimensions of the corresponding leg lengths with a substantial allowance and a mark 27 indicating the necessary dimensions of the leg lengths is displayed on each inspection plate 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding leg length inspection instrument used for inspecting whether or not a leg length of fillet welding is greater than a required dimension.

[0002]

2. Description of the Related Art Conventionally, as a welding leg length inspection instrument of this type, there is one disclosed in Japanese Utility Model Laid-Open No. 62-111501. In other words, a pair of plate gauges are connected to each other via pins so as to be slidably adjustable and rotatable in the longitudinal direction, and the scales are displayed on both plate gauges in the longitudinal direction.

According to this, the tip of one plate gauge is aligned with one end of a fillet weld, and the tip of the other plate gauge is aligned with the other end of the fillet weld. By reading the scale of the gauge, the length of the leg is measured, and it is checked whether or not the actual leg length satisfies the required leg length specified in the production drawing or the like.

[0004]

However, in the above-mentioned conventional type, the scale must be read each time the pair of plate gauges are slid and adjusted to align with each end of the fillet welded portion. The work was troublesome. In addition, the surroundings of the welding site are often scattered by other equipment and members, etc.In many cases, other equipment and members come into contact with the welding leg length inspection tool as described above, and the impact may cause the plate gauge to bend. Alternatively, there is a possibility that the plate gauge may be damaged by dropping the welding leg length inspection device.

According to the present invention, the length of a fillet weld leg can be easily inspected with ease of handling, and further, when not used, the inspection plate (corresponding to the above plate gauge) can be prevented from being damaged. An object of the present invention is to provide a leg length inspection instrument.

[0006]

According to the first aspect of the present invention, there is provided a welding leg length inspecting instrument for joining one base metal and the other base metal crossing each other at a predetermined angle by fillet welding. An inspection instrument for inspecting the length of a welding leg in the case where a plurality of inspection plates are provided so as to be freely inserted into and removed from a storage body, and each of the inspection plates includes a first reference surface formed at a tip and A second reference plane intersecting at a predetermined angle with respect to the first reference plane, and at a corner where the first reference plane and the second reference plane intersect, various required leg length dimensions of the fillet welding are provided. Corresponding notches are formed for each test plate, and the size of the notches is larger than the corresponding required leg length with a margin, and a mark indicating the required leg length is provided on each test plate. It is what is being done.

According to this, an inspection plate corresponding to a required leg length dimension specified in a production drawing or the like is selected, and the first reference plane of the inspection plate is applied to the surface of one of the base materials.
The second reference plane is applied to the surface of the other base material. At this time, if the fillet weld is contained within the notch, the leg length of the fillet weld is visually inspected with reference to the mark to determine whether the leg length of the fillet weld is greater than or equal to the required leg length.

When the inspection plate is not used, the inspection plate can be stored in a storage body to protect the inspection plate from bending or breakage. In the gauge tool for measuring a welding leg length according to the second invention, a sharp portion for removing slag generated in the welded portion is formed in the housing. According to this, the slag attached to the welded portion is removed by the sharp portion of the storage body, so that a dedicated tool such as a slag hammer can be eliminated.

[0009]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. FIG. 8 shows a state in which one plate 1 (an example of one base material) and the other plate 2 (an example of the other base material) that are orthogonal to each other are joined by a fillet weld 3.

The configuration of the inspection tool 5 for inspecting the leg lengths L ₁ and L ₂ of the above-mentioned fillet welded portion 3 will be described below. That is,
As shown in FIGS. 1 to 3, the inspection instrument 5 has a plurality of inspection plates 6 corresponding to a plurality of kinds of required leg length dimensions, and a storage body 7 for accommodating the inspection plates 6 in a removable manner. ing. As each of the inspection plates 6, a stainless steel thin plate is used.

The housing 7 includes a pair of plate members 8 and 9,
A screw body 10 inserted between one ends of both plate members 8 and 9;
Connecting pin 11 for connecting the other end portions of both plate members 8 and 9
And a small size that fits in the palm. A storage space 12 that can store the inspection plate 6 is formed between the two plate members 8 and 9. The two plate members 8, 9
An insertion hole 13 is formed at one end of the test plate 6 and at the base end of each test plate 6. The base end of each test plate 6 is inserted between one end of both plate members 8 and 9. 10 is inserted into the insertion holes 13 of both plate members 8 and 9 and each inspection plate 6 and is tightened by a tightening member 14 from the opposite side. Thereby, each inspection plate 6 is rotatable about the screw body 10 so that the storage body 7 can rotate.
The inspection members 6 can be rotated in and out of the storage space 12 by loosening the fastening members 14 and rotating the inspection plates 6.

The other end of one plate member 8 is formed longer than the other end of the other plate member 9, and the other end of the one plate member 8 has a sharp portion 21 formed of an inclined surface. Is formed. Also, on the long sides of the two plate members 8 and 9, extraction cutouts 16 are formed at the same location, and in these extraction cutouts 16, each inspection plate 6 is sandwiched between fingers to store space 12. Can be easily pulled out. Furthermore, a chain 18 is connected to the connection pin 11 via a connection ring 17.
One end of the chain 18 is connected, and the eggplant ring 19 (self-locking hook) is attached to the other end of the chain 18 as a connecting tool. The eggplant ring 19 can be hung on a belt or the like by opening and closing the locking pieces 19a of the eggplant ring 19 by operating the lever 19b.

As shown in FIG. 4, each of the inspection plates 6 has a first reference surface 22 formed at the tip thereof and a first reference surface 22.
And a second reference plane 23 perpendicular to the second reference plane. Notch portions 24 corresponding to various required leg length dimensions of the fillet welding are formed in each of the inspection plates 6 at the tip corner where the first reference surface 22 and the second reference surface 23 intersect. Notch 2
4 is a straight line portion 25 cut out in parallel from the first reference surface 22 to the second reference surface 23, and a second
And an arc-shaped portion 26 cut out to the reference surface 23.

Each of the inspection plates 6 displays a numeral N indicating a required leg length and a mark 27 indicating a position of the required leg length with respect to the first reference surface 22.
That is, the extension of the first reference plane 22 and the second reference plane 2
The distance A from the point of intersection O with the extension line of No. 3 to the end of the arc-shaped portion 26 is formed larger than the corresponding required leg length. The distance B from the intersection O to the straight portion 25 is formed to be the same as the required leg length. Further, the distance C from the first reference surface 22 to the mark 27 is also formed to be the same as the required leg length (that is, B =
C = required leg length). The arc-shaped portion 26 corresponds to a quarter of a circle having a radius B, and the position of the starting end of the arc-shaped portion 26 and the position of the mark 27 coincide with each other.

The operation of the above configuration will be described below.
When the required leg length dimension of the fillet welding specified in the production drawing or the like is, for example, 7 mm, as shown in FIG. 1, the worker moves the inspection plate 6 marked “7” from the storage space 12 of the storage body 7. And rotate it out. And FIG.
As shown in (1), the first reference surface 22 of the inspection plate 6 is applied to the surface of one plate 1 and the second reference surface 23 is applied to the surface of the other plate 2. At this time, if the fillet welded portion 3 is located inside the notch 24, the mark 27
The basis, to check whether or above corner other plate 2 side of the leg length L ₁ should leg length dimension of the weld portion 3 (7 mm) or visually. That is, corners if the end E ₁ of the other plate 2 side of the weld portion 3 has only to match the position of the mark 27 can be easily and quickly determined that the leg length L ₁ is equal to the required leg length dimension (7 mm) . Further, the end E of the above-mentioned fillet welded portion 3 is formed.
₁ unless not reach the position of the mark 27, when the leg length L ₁ is insufficient than the required leg length dimension (7 mm) can be easily and quickly determined.

Furthermore, the corner if the end E ₂ of one of the plate 1 side of the weld portion 3 has only to match the straight portion 25 of the notch 24, a corner of one of the plate 1 side of the weld portion 3 leg L ₂ can be easily and quickly determined to be equal to the required leg length dimension (7 mm). The end portion of the fillet weld portions 3 E ₂ is straight portion 2
If not reached 5, it is possible to easily and quickly determine if the leg length L ₂ is lacking than the required leg length dimension (7 mm).

At this time, as shown in FIG. 6, an extra weld 28a is formed in the fillet weld 3 so that the leg length L
_{Even if 1} exceeds the required leg length, the extra weld 28
a Since fit the arcuate portion 26 of the notch 24, it is possible to easily and quickly determine the required leg length dimension than sufficient leg length L ₁ is ensured. Further, as shown in FIG. 7, similarly, another extra weld 28b is formed, if the leg length L ₂ exceeds the required leg length dimensions, test plate 6
Is changed by 90 °, the first reference surface 22 of the inspection plate 6 is applied to the surface of the other plate member 2, and the second reference surface 2
3 is applied to the surface of one plate 1 to perform a similar inspection. At this time, another extra welded portion 28b is formed in the notch 24
For fit in the arc-shaped portion 26, it is possible to easily and quickly determine the required leg length dimension than sufficient leg length L ₂ is ensured.

The required leg length is other than 7 mm, for example, 5 mm.
In the case of mm, the inspection work described above may be performed by selecting the inspection plate 6 marked “5”. When the inspection plates 6 are not used, each inspection plate 6 is rotated and stored in the storage space 12 so that the storage body 7
Protects from bending and breakage. The inspection plate 6 can be taken in and out by loosening the tightening member 14.
By tightening 4, each inspection plate 6 is sandwiched and fixed between one end portions of both plate members 8 and 9.

Further, the slag adhered to the surface of the fillet welded portion 3 can be removed by the sharp portion 21 of the housing 7, so that a dedicated tool such as a slag hammer can be eliminated.
In addition, since the inspection tool 5 is connected to the worker via the chain 18 by hooking the eggplant ring 19 on a worker's belt or the like, the inspection tool 5 may drop during the inspection work at a high position. Can be prevented. In addition, each inspection plate 6
Is stored in the storage space 12 so that the inspection instrument 5 can be easily carried in a pocket or in a palm.

As shown in FIG. 2A, the inspection plate 6 (in this case, the inspection plate 6 marked "6") is pulled out of the storage body 7, and the inspection plate 6 and the storage body 7 are aligned. With this configuration, the second reference surface 23 of the inspection plate 6 and the lower end surfaces 20 of the two plate members 8 and 9 are flush with each other. Therefore, FIG.
As shown in the figure, the second reference surface 23 is connected to the plate 2 (or the plate 1).
The lower end surfaces 2 of the two plate members 8 and 9
Since 0 is also applied to the surface of the plate material 2 (or the plate material 1), the inspection instrument 5 is stabilized on the plate material 2 (or the plate material 1), and the inspection operation can be performed more accurately.

In the above embodiment, as shown in FIG.
The notch 24 is composed of a straight portion 25 and an arc-shaped portion 26, but instead of the arc-shaped portion 26, as shown in FIGS. 9 and 10, an L-shaped (square) -shaped portion 31 and an inclined side 32. May be formed. In the above embodiment, as an example of the base material, one plate 1 and the other plate 2 are joined by fillet welding.
The present invention is not limited to the plate material. For example, the plate material and the columnar member may be joined by fillet welding.

In the above embodiment, as shown in FIG.
The intersection angle between the two plates 1 and 2 is orthogonal, that is, 90 °.
However, the angle is not limited to 90 °. In this case, both
The first base of each inspection plate 6 according to the intersection angle of the plate materials 1 and 2
The intersection angle between the reference plane 22 and the second reference plane 23 is set.
In the above embodiment, the equilateral leg lengths in which both required leg length dimensions are equal
The fillet weld 3 is described, but the unequal leg length
Similarly, in the fillet weld, both leg lengths L ₁, L_TwoTo
Can be inspected.

[0023]

As described above, according to the first aspect of the present invention, an inspection plate corresponding to a required leg length dimension specified in a manufacturing drawing or the like is selected, and the first reference plane of the inspection plate is set to one of the two. The second reference plane is brought into contact with the surface of the other base material while being applied to the surface of the base material. At this time, if the fillet weld is within the notch, visually inspect whether the leg length of the fillet weld is greater than or equal to the required leg length with reference to the mark. Can be determined easily and quickly.

When the test plate is not used, the test plate can be stored in a storage body to protect the test plate from bending or breakage. According to the second invention,
By removing the slag adhered to the welded portion at the sharp portion of the housing, a dedicated tool such as a slag hammer can be eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a welding leg length inspection instrument according to an embodiment of the present invention.

FIG. 2 is a side view of the welding leg length inspection instrument.

FIG. 3 is a plan view of the welding leg length inspection instrument.

FIG. 4 is an enlarged view of a cutout portion of an inspection plate of the welding leg length inspection instrument.

FIG. 5 is a view showing a method of inspecting the leg length of the fillet welding using the welding leg length inspecting device.

FIG. 6 is a view showing a method of inspecting a leg length of fillet welding using the welding leg length inspecting device.

FIG. 7 is a view showing a method of inspecting the leg length of the fillet welding using the welding leg length inspecting device.

FIG. 8 is an enlarged view of a fillet welded portion.

FIG. 9 is an enlarged view of a cutout portion of an inspection plate of a welding leg length inspection instrument according to another embodiment of the present invention.

FIG. 10 is an enlarged view of a cutout portion of an inspection plate of a welding leg length inspection instrument according to another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 One plate material (one base material) 2 The other plate material (the other base material) 3 Fillet welded part 5 Inspection tool 6 Inspection plate 7 Container 21 Sharp part 22 1st reference surface 23 2nd reference surface 24 Notch part 27 mark L _1, L ₂ leg

Claims (2)

[Claims] An inspection instrument for inspecting a welding leg length when one base material and another base material crossing each other at a predetermined angle are joined by fillet welding, and are stored in a storage body so as to be freely taken in and out. A plurality of test boards are provided, and each of the test boards is
It has a first reference plane formed at the tip and a second reference plane that intersects the first reference plane at a predetermined angle, and at a corner where the first reference plane intersects with the second reference plane. Notches corresponding to the various required leg lengths of the above-mentioned fillet welding are formed for each inspection plate, and the size of the notch is formed to be larger than the corresponding required leg length so as to have a margin. A mark for indicating the required leg length dimension is provided on a plate. 2. The container according to claim 1, wherein a sharp portion for removing slag generated in the welded portion is formed in the housing.
The described welding leg length inspection tool.