JP7411049B1 - Gauge for irregularly shaped fillet welding - Google Patents

Abstract

An object of the present invention is to measure the throat thickness of irregular fillet welds with various groove depths by slidingly operating the vernier body of a welding gauge. [Solution] A groove depth scale DM is formed on a gauge body 1, and the groove depth scale includes an extension line FL extending perpendicularly to a plate surface F1 of a flange material F from an apex θo of a groove angle θ. The intersection point G between the set point S of the set contact surface 3a that contacts the plate surface W1 of the web material W and the line segment WL extending perpendicularly to the plate surface of the web material is set as a zero scale, and the web material is The main scale body 2 is formed with a reading index RI for reading the actual throat thickness scale αM for irregularly shaped fillets, and the vernier scale body 3 has a bevel scale. A setting index SI for setting the depth is formed. [Selection diagram] Figure 6

Description

Application of Article 30, Paragraph 2 of the Patent Act Distributed on October 25, 2020 Steel Frame Construction Management Committee Research Report Meeting “Toward Revision of Steel Frame Construction Related Guidelines” pp. 3.2-(1) to No. Page 3.2-(7), Architectural Institute of Japan, General Incorporated Association

The present invention relates to a gauge for irregular fillet welds used, for example, in measuring the throat thickness of irregular fillet welds in steel frame fabrication and steel construction work.

Conventionally, a welding gauge for measuring the throat thickness of the fillet of this type of fillet welding is placed between the plate surfaces of the flange material and the plate surface of the web material that are orthogonally adjacent to each other. A gauge body is formed with a pair of mutually orthogonal contact surfaces that are brought into contact with the plate surface and the plate surface of the web material, respectively, and the apex is the intersection point of each extension line of each of the pair of contact surfaces on the gauge body. and a main body slidably disposed in the direction in which the bisector line extends, and the throat thickness is determined by the reference point as the intersection of each extension line of each of the pair of contact surfaces and the fillet surface. A throat thickness scale is formed on the gauge body in the direction in which the bisector line extends, with the reference point as the zero scale, and a reading index for reading the actual throat thickness scale is formed on the main scale body. Structures with similar structures are known.

Special Publication No. 34-4635

However, in the case of the above _- mentioned conventional structure, for example, as shown in _FIG . Since the structure has a pair of orthogonal abutment surfaces (not shown), a groove is formed on the end surface W ₂ of the web material W that abuts the plate surface F ₁ of the flange material F, and the web material with the groove is formed. This means that the actual throat thickness α in so-called irregular fillet welding, in which the end surface W ₂ of W is welded perpendicularly to the plate surface F ₁ of the flange material F, cannot be measured.

Here, according to the "Japan Federation of Construction Contractors, Steel Frame Welding Standards (July 1, 2018 Edition), Fillet Welding Groove Standards", the throat at the groove angle θ and the groove depth D is In measuring the thickness α, the interrelationship between the thickness T of the web material W, the groove angle θ, and the groove depth D is determined as shown in Table 1 below.

For example, as shown in FIG. 14, the throat thickness α is determined by the reference point _O as the starting end point K _S (so-called root) of the groove surface K, which is the apex θ O of the groove angle θ of the groove, and the opening. A line segment _L passing through the end point K of the tip surface K and having the same angle as the beveling angle θ with the plate surface _F1 of the flange material F A perpendicular line _H drawn from the apex θ _O to the leg H of _L Therefore, as shown in FIG. 14, when the groove angle θ is 60°, when the thickness T of the web material W is 40 mm, the groove depth D is 12.0 mm, and When the plate thickness T of W is 19 mm, the groove depth D is 5.5 mm, so we manufactured a welding gauge E for which the groove angle θ is 60° and the groove depth D is 12.0 mm, Using this welding gauge E, it is not possible to measure the throat thickness α when the groove depth D is 5.5 mm.In other words, even if the groove surface K has the same groove angle θ, the groove When the depth D changes from the groove depth _D1 to the groove depth _D2 , the position of the perpendicular line H _L passing through the apex θ _O of the groove angle θ changes from the perpendicular line H _L1 to the perpendicular line H _L2 to the groove depth _D1. A positional shift occurs by the difference (D ₂ - _{D 1} ) between the groove depth D ₂ and the groove depth D 2 , and for this reason, a welding gauge for which the groove angle θ is the same angle and the groove depth D is 12.0 mm. In E, it is not possible to measure the throat thickness α when the groove depth D is 5.5 mm. Therefore, even if the groove angle θ is the same angle, the throat thickness α at different groove depths D cannot be measured. It is necessary to manufacture a dedicated welding gauge E for measurement, and it is necessary to manufacture several types of welding gauges E for each groove angle θ and groove depth D. This method has disadvantages in that management becomes complicated, the workability of measuring throat thickness decreases, and human errors in measurement may occur.

The present invention aims to solve these inconveniences. Among the present invention, the invention according to claim 1 is characterized in that the plate surface of the web material is orthogonally abutted against the plate surface of the flange material, Irregular fillet welding in which a groove is formed in the end surface of the web material that abuts against the plate surface of the flange material, and the end surface of the web material is welded to the plate surface of the flange material, the corner of the irregular fillet welding In a welding gauge for measuring the actual throat thickness of meat, a reference contact surface is arranged between the plate surfaces of the mutually adjacent flange materials and the plate surface of the web material, and is brought into contact with the plate surface of the flange material. The theoretical throat thickness of the plate-shaped gauge body and the fillet is determined by the reference point as the starting end point of the groove surface, which is the apex of the groove angle of the groove, and the terminal point of the groove surface. This is the distance between the leg of a perpendicular line from the apex drawn to a line whose intersection with the plate surface of the flange material is the same angle as the groove angle, and the distance between the foot of the perpendicular line from the apex is a main body that is slidably disposed in the direction in which the perpendicular line extends from the gauge body and has a measuring point at its tip for abutting against the surface of the fillet to measure the actual throat thickness; A setting contact surface is formed that is slidably arranged in a direction perpendicular to the plate surface of the web material and has a set point for contacting the plate surface of the web material to set the groove depth, The gauge body is provided with a vernier body for setting the groove depth of the groove formed on the end face of the web material, and a throat thickness scale for irregularly shaped fillets is formed on the gauge body, and the throat thickness scale is A length scale in the direction in which the perpendicular line extends from the apex of the groove angle with a reference point as the apex of the groove angle of the groove as a zero scale, and a groove depth scale is formed on the gauge body, The groove depth scale is defined by an extension line extending perpendicularly to the plate surface of the flange material from the apex of the groove angle, and a set point of the set abutting surface that comes into contact with the plate surface of the web material. The intersection with a line segment extending perpendicularly to the plate surface of the material is the zero scale, and the length scale in the direction extending perpendicularly to the plate surface of the web material from the intersection point, and the main body has the irregularly shaped fillet. A reading index is formed on the vernier body to read the actual throat thickness scale, and a setting index is formed on the vernier body to set the groove depth. A gauge for irregularly shaped fillet welding is characterized in that the vernier body is configured to be slidably operated.

Further, in the invention as claimed in claim 2, a pair of contact surfaces perpendicular to each other are formed on the gauge main body and are brought into contact with the plate surface of the flange material and the plate surface of the web material, respectively, and the pair of contact surfaces are formed at the positions where the bisector having the apex at the intersection of the extension lines of each contact surface and the perpendicular line extending from the apex of the groove angle of the groove match, and fillet the gauge body. A throat thickness scale for the fillet is formed, and the throat thickness scale for the fillet is a length scale in the direction in which the perpendicular line extends with the reference point as the apex being the zero scale, and the throat thickness scale for the fillet is a length scale in the direction in which the perpendicular line extends. A reading index for reading the throat thickness scale is formed on the rear end of the main body opposite to the measurement point, and is in contact with the surface of the fillet to measure the actual throat thickness of the fillet. It is characterized by being equipped with measurement points.

As described above, in the invention according to claim 1, when measuring the throat thickness of grooves having the same groove angle, a welding gauge is manufactured according to the groove angle, and the welding gauge is manufactured according to the groove angle. Throat thickness of irregular fillet welds with different groove depths can be measured by sliding the vernier body of the . There is no need to manufacture gauges, and there is no need to manufacture several types of welding gauges for each groove depth when the groove angle is the same, which simplifies the management of welding gauges and makes it easier to measure throat thickness. Work efficiency can be improved, human errors in measurement can be prevented, and the quality of irregular fillet welding can be accurately determined by taking into account management tolerances.

Further, in the invention according to claim 2, a pair of abutment surfaces perpendicular to each other are formed on the gauge body and abut on the plate surface of the flange material and the plate surface of the web material, respectively. The contact surfaces are formed at positions where the bisector having the apex at the intersection of each extension line of each contact surface and the perpendicular line extending from the apex of the groove angle of the groove match, and are located on the gauge body. A throat thickness scale for meat is formed, and the throat thickness scale for fillet is a length scale in the direction in which the perpendicular line extends, with the reference point as the apex being the zero scale, and the throat thickness scale for fillet is a length scale in the direction in which the perpendicular line extends. A reading index for reading the throat thickness scale is formed on the rear end of the main body opposite to the measurement point, and is in contact with the surface of the fillet to measure the actual throat thickness of the fillet. Since it is configured with measurement points, the throat thickness of fillet welds without a groove can also be measured using the measurement points, increasing the flexibility of use.

FIG. 1 is an overall front view of a first embodiment of the present invention. FIG. 1 is an overall side sectional view of a first embodiment of the present invention. FIG. 1 is a partial cross-sectional view of a first embodiment of the present invention. FIG. 1 is a partial cross-sectional view of a first embodiment of the present invention. FIG. 1 is a partial cross-sectional view of a first embodiment of the present invention. FIG. 1 is a front view illustrating the entire state of use of the first embodiment of the present invention. FIG. 1 is an overall front view of the first embodiment of the present invention in use. FIG. 1 is an overall front view of the first embodiment of the present invention in use. FIG. 1 is a front view illustrating the entire state of use of the first embodiment of the present invention. FIG. 6 is a front view illustrating the whole state of use of the second embodiment of the present invention. FIG. 7 is an overall front view of the second embodiment of the present invention in use. FIG. 7 is an overall front view of the second embodiment of the present invention in use. FIG. 6 is a front view illustrating the whole state of use of the second embodiment of the present invention. It is a partially enlarged explanatory front view of the conventional structure in use.

1 to 13 show embodiments of the present invention, FIGS. 1 to 9 show a first embodiment of the invention, and FIGS. 10 to 13 show a second embodiment of the invention.

In the first embodiment shown in FIGS. 1 to 9, a groove with a groove angle θ of 60° is used for measuring the throat thickness of irregular fillet welding in which a groove with a groove angle θ of 60° is formed in the web material W. In this case, as shown in FIGS. 1, 6 _, and 7, the plate surface W1 of the web material W is orthogonally abutted against the plate surface _F1 of the flange material F, and the flange This is irregular fillet welding in which a groove is formed on _the end surface _W2 of the web material W that abuts the plate surface F1 of the material F, and the end surface _W2 of the web material W is welded to the plate surface _F1 of the flange material F. , in the welding gauge E for measuring the actual throat thickness α of the fillet M of this irregular fillet weld, between the plate surface F ₁ of the mutually adjacent flange material F and the plate surface W ₁ of the web material W. The theoretical throat thickness α of the fillet M and the plate-shaped gauge main body 1 formed with the reference contact surface 1a that is placed in contact with the plate surface _F1 of the flange material F is determined by the groove angle of the groove. The intersection angle between the reference point _O as the starting point K _S (so-called root) of the groove surface K, which is the apex θ of θ, and the plate surface F ₁ of the flange material F passing through the terminal point K _E of the groove surface K. The foot H of the perpendicular line H _L from the apex θ _O drawn to the line segment L _S with the same angle as the groove angle θ (that is, the intersection angle with the plate surface F ₁ of the flange material F passing through the terminal point K _E This is the distance between a line segment _LS that has the same angle as _{the groove angle θ and the intersection with the perpendicular line HL from} the apex _θO drawn to the line segment LS. A book that is slidably arranged in the direction in which the perpendicular line _HL extends from the apex _θO of the book, and has a measuring point P at the tip thereof for abutting against the surface _M1 of the fillet M to measure the actual throat thickness α. It is configured to include a length body 2.

The theoretical throat thickness α of the fillet M of the above-mentioned irregular fillet welding is the starting end point _KS of the groove surface K, which is the apex θ of the groove angle _θ of the above-mentioned groove, and the reference point O as the so-called root. A line segment _L passing through the end point K of the tip surface K and having the same angle as the beveling angle θ with the plate surface _F1 of the flange material F A perpendicular line _H drawn from the apex θ _O to the leg H of _L (In other words, a line segment L S passing through the terminal point K _E and whose intersection with the plate surface F ₁ of the flange material F is the same angle as the beveling angle θ, and a perpendicular line from the vertex θ _O drawn to the line segment _{L S} The distance between the HL and the intersection point with _L is determined by "JIS Handbook 40-1 Welding I (Basic), January 31, 2022, 1st edition, 1st printing, published by the Japan Standards Association. Z3001-1・No. 11613", "Thickness of the throat of the actual welded part. In the case of fillet welding, it is the shortest distance from the root of the cross section to the surface. If the penetration does not reach the root, , is the shortest distance from the bottom of the molten metal to the surface.Note: Actual throat thickness depends on the design throat thickness indication.''

From this definition of throat thickness α, the general formula for the relationship among groove angle θ, groove depth D, and throat thickness α is as shown in [Equation 1] below.

In this case, as shown in FIG. 6, in addition to the gauge body 1 and the main scale body 2, the gauge body 1 is arranged to be slidable in a direction perpendicular to the plate surface _W1 of the web material A setting contact surface 3a having a set point S for setting the groove depth D by contacting the plate surface _W1 of the web material W is formed, and the setting contact surface 3a has a set point S for setting the groove depth D by contacting the plate surface _W1 of the web material W. It is equipped with a vernier body 3 for setting the tip depth D.

In this case, as shown in FIGS. 1 and 6, a throat thickness scale α _M for the irregularly shaped fillet is formed on the gauge body 1, and the throat thickness scale α _M is the apex θ of the groove angle θ of the groove. A length scale is set in the direction in which the perpendicular line H _L extends from the apex θ _O of the groove angle θ with the reference point O as a zero scale, and a groove depth scale D _M is formed on the gauge body ₁ , The groove depth scale _DM is in contact with an extension line FL extending perpendicularly to the plate surface _F1 of the flange material F from the apex _θO of the groove angle θ and _the plate surface _W1 of the web material W. The intersection point G with the line segment _WL extending perpendicularly to the plate surface W ₁ of the web material W from the set point S of the set contact surface 3a to be set is the zero scale, and from this intersection G to the plate surface W ₁ of the web material W. The main scale body 2 is provided with a reading index RI for reading the actual throat thickness scale _αM for irregularly shaped fillets, and the vernier body 3 is provided with a reading index _RI for reading the actual throat thickness scale αM for irregularly shaped fillets. A setting index S _I for setting the groove depth D is formed, and the vernier body 3 is configured to be slid in response to a change in the groove depth D.

In this case, as shown in FIGS. 1, 2, 3, 4, and 5, the main body 2 is slidably mounted on the gauge body 1 through the guide grooves 1c and 1c and the sliding portions 2a and 2a. In this case, the vernier body 3 is provided with four guide pins 3d of the gauge body 1, and is configured to elastically hold the main scale body 2 with a leaf spring 1d to prevent accidental sliding. A long hole 3c is formed in the vernier body 3, and a rotary knob 3e is screwed onto the female screw 1e of the gauge body 1 through the long hole 3c. The position of the vernier body 3 is adjustable by forward and reverse rotation of the movable knob 3e.

In this case, as shown in FIG. 9, a pair of contact surfaces _1b and 1b orthogonal to each other are brought into contact with the plate surface F1 of the flange material F and the plate surface _W1 of the web material W, respectively, on the gauge body 1. is formed, and the pair of abutment surfaces 1b and 1b are connected to the bisector line _BS whose apex is the intersection point I of each extension line F _I and W _I of each abutment surface 1b and _1b , and the opening of the groove. A throat thickness scale αN for the fillet M is formed on the gauge body 1, which is formed at a position where the perpendicular line _HL extending from the vertex _IO of the tip angle θ coincides with the throat thickness scale _αN for the fillet M. α _N is a length scale in the direction in which the perpendicular line H _L extends with the reference point O as the apex I _O as the zero scale, and in order to read the throat thickness scale α _N for the fillet M on the main scale body 2. A reading index _RI is formed on the rear end of the main body 2 on the opposite side to the measurement point P and comes into contact with the surface _M1 of the fillet M to measure the actual throat thickness α of the fillet M. The structure is equipped with a measurement point Q for the measurement.

Since the first embodiment of this embodiment has the above configuration, when measuring the throat thickness α using the welding gauge E for the groove angle θ of 60° as shown in FIGS. 6, 7, and 8, first, The vernier body 3 is slid in accordance with the groove depth D, and when the groove depth D is 12.0 mm, the setting index S _I of the vernier body 3 is set as shown in FIG. By matching the depth scale DM with the 12.0 mm scale of _M , and substituting 60 degrees for the groove angle θ and 12 mm for the groove depth D in the general formula of [Equation 1] above, the expression of [Equation 2] can be obtained. As shown in the upper row, the theoretical throat thickness α is determined to be 20.8 mm. Therefore, the actual throat thickness α of the fillet M after welding is measured and compared with the theoretical throat thickness of 20.8 mm to judge the quality of the welding. In addition, when the groove depth D is 5.5 mm, as shown in FIG. 8, the setting index S _I of the vernier body 3 is matched with the 5.5 mm scale of the groove depth scale D _M Therefore, by substituting 60 degrees for the groove angle θ and 5.5 mm for the groove depth D into the general formula of [Equation 1] above, the theoretical throat thickness α is 9.5 mm, as shown in the lower part of [Equation 2]. Therefore, the actual throat thickness α of the fillet M after welding can be measured and compared with the theoretical throat thickness of 9.5 mm to determine the quality of the weld.

Therefore, when measuring the throat thickness α of a groove with the same groove angle θ, a welding gauge E is manufactured according to the groove angle θ, and in this case, a welding gauge E for a groove angle of 60° is manufactured. The gauge body 1 is manufactured by sliding the vernier body 3 of this welding gauge E to adjust the distance of the groove depth difference (D ₂ - D ₁ ) in the direction in which the plate surface F ₁ of the flange material F extends. It is possible to measure the throat thickness α of irregular fillet welds with various groove depths D by moving in parallel. It is no longer necessary to manufacture several types of welding gauges E for each groove depth D when the groove angle θ is the same, and the management of welding gauges E is simplified accordingly. The workability of thickness α measurement can be improved, human errors in measurement can be prevented, and management tolerance can be taken into account to accurately determine the quality of irregular fillet welds.

In this case, as shown in FIG. 9, a pair of contact surfaces _1b and 1b orthogonal to each other are brought into contact with the plate surface F1 of the flange material F and the plate surface _W1 of the web material W, respectively, on the gauge body 1. is formed, and the pair of abutment surfaces 1b and 1b are connected to the bisector line B _S (45°) whose vertex I is the intersection point _I of each extension line F _I and W _I of each abutment surface 1b and 1b, and the above Throat thickness scales _αN for fillet M are formed on the gauge body 1 at positions where the perpendicular lines H and _L extending from the apex _IO of the groove angle θ match, respectively. The throat thickness scale _αN is a length scale in the direction in which the perpendicular line _HL extends with the reference point O as the apex _IO as the zero scale, and the throat thickness scale αN for the fillet M is provided on the main body 2. A reading index _RI for reading _N is formed at the rear end of the main body 2 on the opposite side from the measurement point P, and is in contact with the surface _M1 of the fillet M to measure the actual position of the fillet M. Since it is configured with a measuring point Q for measuring the thickness α, the throat thickness α of fillet welds without a groove can also be measured using the measuring point Q, increasing the flexibility of use. can.

10 to 13 show a second embodiment of the present invention, which is used to measure the throat thickness of irregular fillet welding in which a groove with a groove angle θ of 50° is formed in the web material W. This is a welding gauge E for a groove angle of 50°, and the same parts as in the first embodiment will be described with the same reference numerals.

That is, in the second embodiment, as shown in FIGS. 10, 11, 12, and 13, the plate surface _W1 of the web material W is orthogonally abutted against the plate surface _F1 of the flange material F, A groove is formed on the end surface W ₂ of the web material W that abuts the plate surface F ₁ of the flange material F, and this is irregular fillet welding in which the end surface W ₂ of the web material W is welded to the plate surface F ₁ of the flange material F. Then, in the welding gauge E for measuring the actual throat thickness α of the fillet M of this irregular fillet weld, the distance between the plate surface F ₁ of the above-mentioned mutually adjacent flange material F and the plate surface W ₁ of the above-mentioned web material W is used. The plate-shaped gauge body 1 is disposed on the ground and has a reference contact surface 1a that is brought into contact with the plate surface _F1 of the flange material F, and the theoretical throat thickness α of the fillet M is determined by the groove angle of the groove. The intersection angle between the reference point _O as the starting point K _S (so-called root) of the groove surface K, which is the apex θ of θ, and the plate surface F ₁ of the flange material F passing through the terminal point K _E of the groove surface K. The foot H of the perpendicular line H _L from the apex θ _O drawn to the line segment L _S with the same angle as the groove angle θ (that is, the intersection angle with the plate surface F ₁ of the flange material F passing through the terminal point K _E This is the distance between a line segment _LS that has the same angle as _{the groove angle θ and the intersection with the perpendicular line HL from} the apex _θO drawn to the line segment LS. A main scale that is slidably disposed in the direction in which the perpendicular line _HL extends from _the apex _θO of body 2.

In addition, the theoretical throat thickness α of the fillet M of the above-mentioned irregular fillet welding is the apex θ of the groove angle _θ of the above-mentioned groove, the reference point O as the starting end point _K of the groove surface K, and the groove surface K. Between the perpendicular line H from the apex θ _O drawn to the line segment L _S whose intersection angle with the plate surface F ₁ of the flange material F is the same as the groove angle θ passing through the terminal point _{K E} and the leg H of _L The distance is based on the definition of JIS Handbook 2022 mentioned above.

In this case, as shown in FIG. 10, in addition to the gauge body 1 and the main scale body 2, the gauge body 1 is arranged so as to be slidable in a direction orthogonal to the plate surface _W1 of the web material W, and the A setting contact surface 3a having a set point S for setting the groove depth D by contacting the plate surface _W1 of the web material W is formed, and the groove formed on the end surface _W2 of the web material W is formed. A vernier body 3 is provided for setting the groove depth D of the groove.

In this case, as shown in FIG. 10, a throat thickness scale α _M for the irregularly shaped fillet is formed on the gauge body 1, and the throat thickness scale α _M corresponds to the apex θ _O of the groove angle θ of the groove. The gauge body 1 is formed with a groove depth scale D _M , which is a length scale in the direction in which the perpendicular line H _L extends from the apex θ _O of the groove angle θ, with the reference point O as the zero scale. The scale D _M is set to be in contact with an extension line F _L extending perpendicularly to the plate surface F ₁ of the flange material F from the apex θ _O of the groove angle θ and to the plate surface W ₁ of the web material W. From the set point S of the contact surface 3a to the line segment _WL extending perpendicularly to the plate surface _W1 of _the web material W, the zero scale is the intersection G, The main length scale body 2 is formed with a reading index RI for reading the actual throat thickness scale _αM for irregularly shaped fillets, and the vernier length body 3 is formed with a reading index _RI for reading the actual throat thickness scale αM for irregularly shaped fillets. A setting index S _I for setting the groove depth D is formed, and the vernier body 3 is configured to be slid in response to a change in the groove depth D.

Since the second embodiment of this embodiment has the above configuration, as shown in FIGS. 10, 11, and 12, when measuring the throat thickness α using the welding gauge E for the groove angle θ of 50°, first, The vernier body 3 is slid in accordance with the groove depth D, and when the groove depth D is 13.5 mm, the setting index S _I of the vernier body 3 is set as shown in FIG. 11. By matching the depth scale _DM with the 13.5 mm scale, and substituting 50° for the groove angle θ and 13.5 mm for the groove depth D in the general formula of [Equation 1] above, [Equation 3 ] As shown in the upper row, the theoretical throat thickness α is determined to be 20.7 mm. Therefore, the actual throat thickness α of the fillet M after welding is measured and compared with the theoretical throat thickness of 20.7 mm to determine the quality of the weld. In addition, when the groove depth D is 6.5 mm, as shown in FIG. 12, the setting index S _I of the vernier body 3 matches the 6.5 mm scale of the groove depth scale D _M. Then, by substituting 50 degrees for the groove angle θ and 6.5 mm for the groove depth D into the general formula of [Equation 1] above, the theoretical throat thickness α is 10 as shown in the lower part of [Equation 3]. Therefore, the actual throat thickness α of the fillet M after welding can be measured and compared with the theoretical throat thickness of 10.0 mm to determine the quality of the weld.

Therefore, when measuring the throat thickness α of a groove with the same groove angle θ, a welding gauge E is manufactured according to the groove angle θ, and in this case, a welding gauge E for a groove angle of 50° is manufactured. The gauge body 1 is manufactured by sliding the vernier body 3 of this welding gauge E to adjust the distance of the groove depth difference (D ₂ - D ₁ ) in the direction in which the plate surface F ₁ of the flange material F extends. It is possible to measure the throat thickness α of irregular fillet welds with various groove depths D by moving in parallel. It is no longer necessary to manufacture several types of welding gauges E for each groove depth D when the groove angle θ is the same, and the management of welding gauges E is simplified accordingly. The workability of thickness α measurement can be improved, human errors in measurement can be prevented, and management tolerance can be taken into account to accurately determine the quality of irregular fillet welds.

In this case, as shown in FIG. 13, a pair of contact surfaces _1b and 1b orthogonal to each other are brought into contact with the plate surface F1 of the flange material F and the plate surface _W1 of the web material W, respectively, on the gauge body 1. is formed, and the pair of abutment surfaces 1b and 1b are connected to the bisector line B _S (45°) whose vertex I is the intersection point _I of each extension line F _I and W _I of each abutment surface 1b and 1b, and the above Throat thickness scales _αN for fillet M are formed on the gauge body 1 at positions where the perpendicular lines H and _L extending from the apex _IO of the groove angle θ of the groove match, respectively. The throat thickness scale _αN is a length scale in the direction in which the perpendicular line _HL extends with the reference point O as the apex _IO as the zero scale, and the throat thickness scale αN for the fillet M is provided on the main body 2. A reading index _RI for reading _N is formed at the rear end of the main body 2 on the opposite side from the measurement point P, and is in contact with the surface _M1 of the fillet M to measure the actual position of the fillet M. Since it is configured with a measuring point Q for measuring the thickness α, the throat thickness α of fillet welds without a groove can also be measured using the measuring point Q, increasing the flexibility of use. can.

It should be noted that the present invention is not limited to the above-described embodiments, and the structures and forms of the gauge body 1, main body 2, and vernier body 3 may vary depending on the flange material F, web material W, and groove angle θ. The design can be changed as appropriate.

As described above, the intended purpose can be fully achieved.

E Welding gauge F Flange material F ₁ plate surface F _L extension line F _I extension line G Intersection point W Web material W ₁ plate surface W ₂ end face W _L extension line W _I extension line M Fillet M ₁ surface K Bevel surface K _S start end point K _E end point L _S line segment H Foot H _L perpendicular O Reference point P Measurement point S Setting point S _I setting index D Groove depth D _M groove depth scale I Intersection I _O vertex B _S 2 etc. Separate line R _I reading index Q Measuring point α Throat thickness α Throat thickness scale for _M irregular fillet α Throat thickness scale for _N fillet θ Bevel angle θ _O apex 1 Gauge body 1a Reference contact surface 1b Contact surface 2 Main body 3 Vernier body 3a Setting contact surface

Claims (2)

The plate surface of the web material is arranged to butt orthogonally to the plate surface of the flange material, a groove is formed on the end surface of the web material that abuts against the plate surface of the flange material, and the end surface of the web material is connected to the plate surface of the flange material. In a welding gauge for measuring the actual throat thickness of the fillet of the irregular fillet weld, which is welded to a surface, the plate surfaces of the above-mentioned mutually adjacent flange materials and the plate surface of the above-mentioned web material. The theoretical throat thickness of the plate-shaped gauge body and the fillet is located between the plate-shaped gauge body and the reference contact surface that contacts the plate surface of the flange material. A perpendicular line from the vertex drawn to a line segment whose intersection angle between the reference point as the starting end point of the tip surface and the plate surface of the flange material passing through the end point of the groove surface is the same angle as the groove angle. It is placed on the gauge body so as to be able to slide freely in the direction in which the perpendicular line extends from the apex of the groove angle, and the tip touches the surface of the fillet to measure the actual throat thickness. In addition, a main scale body is disposed on the gauge body so as to be slidable in a direction perpendicular to the plate surface of the web material, and is in contact with the plate surface of the web material to measure the groove depth. a setting abutment surface having a set point for setting the depth, and a vernier body for setting the groove depth of the groove formed on the end face of the web material; A throat thickness scale for irregularly shaped fillets is formed, and the throat thickness scale is defined by the length in the direction in which the perpendicular line extends from the apex of the groove angle, with the reference point as the apex of the groove angle being the zero scale. A groove depth scale is formed on the gauge body, and the groove depth scale is defined by an extension line extending perpendicularly to the plate surface of the flange material from the apex of the groove angle, and a groove depth scale formed on the gauge body. The intersection point with a line segment extending orthogonally to the plate surface of the web material from the setting point of the set contact surface that comes into contact with the plate surface of the material is the zero scale, and from the intersection point to the line segment extending perpendicularly to the plate surface of the web material. A length scale in the extending direction, a reading index for reading the actual throat thickness scale for the irregularly shaped fillet is formed on the main body, and a reading index for setting the groove depth on the vernier body. A gauge for irregularly shaped fillet welding, characterized in that a setting index is formed, and the vernier body is slidably operated in response to a change in the groove depth. A pair of contact surfaces perpendicular to each other are formed on the gauge body, and the contact surfaces are in contact with the plate surface of the flange material and the plate surface of the web material, respectively, and the pair of contact surfaces are formed on each extension line of each contact surface. A throat thickness scale for fillet is formed on the gauge body, and a throat thickness scale for fillet is formed on the gauge body, and a throat thickness scale for the fillet is formed on the gauge body. The throat thickness scale for fillet is a length scale in the direction in which the perpendicular line extends, with the reference point as the apex being the zero scale, and the main body has a reading index for reading the throat thickness scale for fillet. a measurement point for measuring the actual throat thickness of the fillet by contacting the surface of the fillet at the rear end of the main body on the opposite side of the measurement point. The gauge for irregularly shaped fillet welding according to claim 1.