CN211576014U

CN211576014U - Upper tube base angle steel welding seam position inspection gauge

Info

Publication number: CN211576014U
Application number: CN201922264525.7U
Authority: CN
Inventors: 张丽英; 秦国鹏; 唐荣涛
Original assignee: China Jianzhong Nuclear Fuel Co Ltd
Current assignee: China Jianzhong Nuclear Fuel Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-25
Anticipated expiration: 2029-12-17

Abstract

The utility model belongs to nuclear fuel manufacturing technology, concretely relates to go up top tube base angle steel welding seam position inspection gauge. The device comprises a small T-shaped block, a welding seam width measuring block and a stepped block, wherein the welding seam width measuring block is positioned between the small end of the small T-shaped block and the small end of the stepped block; two sides of the welding seam width measuring block are respectively processed with a channel structure with a right-angled section, so that stepped shoulders are formed on two sides of the welding seam width measuring block; the small end of the small T-shaped block is processed into a stepped structure, so that the end part forms a channel structure with a right-angled section; the small end of the stepped block is processed into a stepped structure, so that the end part forms a channel structure with a right-angle section. The welding line theoretical axis position and the upper and lower limit offset positions can be directly checked, the inspection and judgment standards can be visually provided, the inspection difficulty of the upper tube base after welding can be effectively simplified, the welding deformation and the welding defects can be reliably controlled, and the welding quality is improved.

Description

Upper tube base angle steel welding seam position inspection gauge

Technical Field

The utility model belongs to nuclear fuel manufacturing technology, concretely relates to go up top tube base angle steel welding seam position inspection gauge.

Background

The upper pipe seat is one of key components of an FA300-3 type pressurized water reactor nuclear fuel assembly for a Qinshan nuclear power station and a Pakistan Xima nuclear power station, and has irreplaceable functions of positioning the core position of the fuel assembly, restraining and positioning a framework, hoisting an assembly interface and the like. Therefore, the technical conditions have higher requirements on the strength and the irradiation creep property of the upper pipe seat welding seam. The upper tube seat belongs to a precise welding structure, the deviation of the axis of a welding line from a joint is required to be less than or equal to 0.5mm, otherwise, the strength of the welding line is greatly reduced, the product quality is directly influenced, and the nuclear power safety is further influenced.

Because the deviation value of the welding seam position is small, the welding seam covers the joint binding surface after welding, and an intuitive comparison reference object is lacked. It is difficult to accurately measure the offset value and determine whether the weld is off-joint with the naked eye. In the prior art, the width of a multi-section local welding seam can be carefully measured only by a vernier caliper or a height gauge in a segmented manner, and then the theoretical axis position of the measured welding seam is calculated. The time for measuring the welding seam position of a tube seat product is 0.5-2 hours, the time and the labor are wasted, the inspection result is different from person to person, and the standard property is lacked.

Disclosure of Invention

The utility model aims at providing an upper tube base angle steel welding seam position inspection gauge, detectable different grade type welding seam position effectively simplifies the inspection degree of difficulty of upper tube base angle steel welding seam postweld.

The technical scheme of the utility model as follows:

an upper pipe base angle steel weld joint position inspection gauge comprises a small T-shaped block, a weld joint width measuring block and a stepped block, wherein the weld joint width measuring block is positioned between the small end of the small T-shaped block and the small end of the stepped block; two sides of the welding seam width measuring block are respectively processed with a channel structure with a right-angled section, so that stepped shoulders are formed on two sides of the welding seam width measuring block; the small end of the small T-shaped block is processed into a stepped structure, so that the end part forms a channel structure with a right-angled section; the small end of the stepped block is processed into a stepped structure, so that the end part forms a channel structure with a right-angle section.

The small end of the small T-shaped block is arranged opposite to one side of the welding seam width measuring block, and the stepped structures of the two parts are combined to form a welding seam width lower limit measuring groove A and a welding seam width upper limit measuring groove A.

The width of the lower limit measuring groove A of the welding seam width is smaller than that of the upper limit measuring groove A of the welding seam width.

And the opposite mounting surfaces of the small T-shaped block and the welding seam width measuring block are respectively processed with a step structure, so that the bottoms of the welding seam width lower limit measuring groove A and the welding seam width upper limit measuring groove A respectively form a channel.

The small end of the stepped block is arranged opposite to the other side of the welding seam width measuring block, and the stepped structures of the two parts are combined to form a welding seam width lower limit measuring groove B and a welding seam width upper limit measuring groove B.

The width of the lower limit measuring groove B of the welding seam width is smaller than that of the upper limit measuring groove B of the welding seam width.

And the opposite mounting surfaces of the stepped block and the welding seam width measuring block are respectively provided with a stepped structure, so that a channel is respectively formed at the bottom of the welding seam width lower limit measuring groove B and the welding seam width upper limit measuring groove B.

The small T-shaped block, the welding seam width measuring block and the stepped block have the same maximum width in the overlooking direction.

The utility model discloses an effect as follows: the gauge can directly check the theoretical axis position of the welding line and the upper and lower limit positions of the deviation, visually provides a checking and judging standard, can effectively simplify the checking difficulty of the upper tube seat after welding, reliably controls the welding deformation and the welding defect, and improves the welding quality. The time for detecting the welding seam of one pipe seat only needs one minute, so that the detection efficiency is greatly improved, the waste of personnel and economy is reduced, and the method has good economic value. The gauge and the inspection method have the advantages of simple and clear operation, standardized operation and high inspection efficiency. The upper pipe seat angle steel welding seam position inspection gauge can inspect the positions of two different types of welding seams, namely a thick plate side welding seam and a thin plate side welding seam.

Drawings

FIG. 1 is a schematic diagram of an upper pipe base angle steel weld joint position inspection gauge;

FIG. 2 is a schematic view of a width measurement slot;

FIG. 3 is an enlarged view E;

FIG. 4 is an enlarged view F;

FIG. 5 is a schematic diagram of the upper tube base angle steel weld seam position inspection gauge in use;

in the figure: 1. a small T-shaped block; 2. a weld width measuring block; 3. a stepped block; 4. a groove A is measured at the lower limit of the width of the welding seam; 5. a lower limit measuring groove B of the width of the welding seam; 6. measuring a groove A for the upper limit of the width of the welding seam; 7. a welding seam width upper limit measuring groove B; 8. a abdicating edge; 9. edge alignment; type a weld; type B weld; 12. a lower limit measuring groove for the axial deviation of the welding seam; 13. the weld axis is offset by an upper limit measurement slot.

Detailed Description

The present invention will be further explained with reference to the drawings and the detailed description.

As shown in figure 1, the upper pipe base angle steel welding seam position inspection gauge comprises a small T-shaped block 1, a welding seam width measurement block 2 and a stepped block 3. The three members have the same maximum width in a plan view.

The welding seam width measuring block 2 is positioned between the small end of the small T-shaped block 1 and the small end of the stepped block 3.

And respectively processing channel structures with right-angled sections on two sides of the welding seam width measuring block 2, so that stepped shoulders are formed on two sides of the welding seam width measuring block 2.

And processing a stepped structure at the small end of the small T-shaped block 1 to form a channel structure with a right-angle section at the end.

The small end of the small T-shaped block 1 is arranged opposite to one side of the welding seam width measuring block 2, the stepped structures of the two parts are combined to form a welding seam width lower limit measuring groove A4 and a welding seam width upper limit measuring groove A6, and the width of the welding seam width lower limit measuring groove A4 is smaller than that of the welding seam width upper limit measuring groove A6.

And processing a stepped structure at the small end of the stepped block 3 to form a channel structure with a right-angle section at the end.

The small end of the stepped block 3 is arranged opposite to the other side of the welding seam width measuring block 2, the stepped structures of the two parts are combined to form a welding seam width lower limit measuring groove B5 and a welding seam width upper limit measuring groove B7, and the width of the welding seam width lower limit measuring groove B5 is smaller than that of the welding seam width upper limit measuring groove B7.

The above A or B represents two different weld types, taking B type weld as an example.

As shown in fig. 2, the opposite mounting faces of the stepped block 3 and the bead width measuring block 2 are respectively machined with stepped structures so that grooves, referred to as a bead axis displacement lower limit measuring groove and a bead axis displacement upper limit measuring groove corresponding to the B-type bead 11, are formed at the bottoms of the bead width lower limit measuring groove B5 and the bead width upper limit measuring groove B7, respectively.

Also, a groove is formed in the bottom of the weld width lower limit measurement groove a4 and the weld width upper limit measurement groove a6, respectively, which are referred to as a weld axis deviation lower limit measurement groove and a weld axis deviation upper limit measurement groove corresponding to the a-type weld 10.

The width of the lower limit measuring groove of the axial deviation of the welding seam of each type of welding seam is smaller than that of the upper limit measuring groove of the axial deviation of the welding seam.

A and B can be 2 different types of welds on the thick plate side and the thin plate side.

The right angle of the ladder on the ladder-shaped block 3 is a yielding edge 8 and an alignment edge 9 from the interface.

As shown in figure 5, two upper pipe seat angle steel welding seam position inspection gauges are respectively and symmetrically arranged above the upper pipe seat angle steel, and a yielding side 8 and an alignment side 9 are tightly attached to the right-angle side of the angle steel.

One upper pipe base angle steel weld joint position inspection gauge measures the thick plate side weld joint, and the other measures the thin plate side weld joint.

The positions corresponding to the lower limit measuring groove and the upper limit measuring groove of the axial deviation of the welding line are theoretical welding line positions, and the welding line exposed outside the gauge can be observed through the back and forth movement of the gauge, so that the difference between the required theoretical axial line and the actual axial line of the welding line can be compared.

Firstly, the gauge is attached to an upper pipe seat to be measured after abdicating and aligning, and the gauge is ensured to be closely attached to the pipe seat; observing the exposed local welding seam outside the gauge, and comparing the theoretical axis position of the welding seam, the deviation upper and lower limit positions of the welding seam axis and the width upper and lower limit positions of the welding seam shown by the gauge, wherein the difference between the three positions and the actual welding seam is that the welding seam exceeding the upper and lower limits of the gauge is unqualified; and then moving the gauge along the axis to finish the position inspection of other local welding seams. After the gauge is turned over by 180 degrees (or an additional measuring gauge is used), the position of a welding seam (an angle steel thick plate side welding seam and an angle steel thin plate side welding seam) of different upper pipe seat angle steels can be measured by using the other side.

Claims

1. The utility model provides an upper tube base angle steel welding seam position inspection gauge which characterized in that: the device comprises a small T-shaped block (1), a welding seam width measuring block (2) and a stepped block (3), wherein the welding seam width measuring block (2) is positioned between the small end of the small T-shaped block (1) and the small end of the stepped block (3); two sides of the welding seam width measuring block (2) are respectively processed with a channel structure with a right-angled section, so that stepped shoulders are formed at two sides of the welding seam width measuring block (2); the small end of the small T-shaped block (1) is processed into a step-shaped structure, so that the end part forms a channel structure with a right-angled section; the small end of the stepped block (3) is processed into a stepped structure, so that the end part forms a channel structure with a right-angle section.

2. The upper tube seat angle steel weld position inspection gauge of claim 1, wherein: the small end of the small T-shaped block (1) is arranged opposite to one side of the welding seam width measuring block (2), and the stepped structures of the two parts are combined to form a welding seam width lower limit measuring groove A (4) and a welding seam width upper limit measuring groove A (6).

3. The upper tube seat angle steel weld position inspection gauge of claim 2, wherein: the width of the lower limit measuring groove A (4) of the welding seam width is smaller than that of the upper limit measuring groove A (6) of the welding seam width.

4. The upper tube seat angle steel weld position inspection gauge of claim 3, wherein: the opposite mounting surfaces of the small T-shaped block (1) and the welding seam width measuring block (2) are respectively processed with a step structure, so that the bottoms of the welding seam width lower limit measuring groove A (4) and the welding seam width upper limit measuring groove A (6) respectively form a channel.

5. The upper tube seat angle steel weld position inspection gauge of claim 1, wherein: the small end of the stepped block (3) is arranged opposite to the other side of the welding seam width measuring block (2), and the stepped structures of the two parts are combined to form a welding seam width lower limit measuring groove B (5) and a welding seam width upper limit measuring groove B (7).

6. The upper tube seat angle steel weld position inspection gauge of claim 5, wherein: the width of the weld width lower limit measurement groove B (5) is smaller than the width of the weld width upper limit measurement groove B (7).

7. The upper tube seat angle steel weld position inspection gauge of claim 6, wherein: and the opposite mounting surfaces of the stepped block (3) and the welding seam width measuring block (2) are respectively provided with a stepped structure, so that a channel is respectively formed at the bottom of the welding seam width lower limit measuring groove B (5) and the welding seam width upper limit measuring groove B (7).

8. An upper tube seat angle steel weld position inspection gauge according to any one of claims 1 to 7, wherein: the small T-shaped block (1), the welding seam width measuring block (2) and the stepped block (3) have the same maximum width in the overlooking direction.