Welding seam inspection ruler

Abstract

The utility model discloses a welding seam inspection ruler which comprises a main ruler, the main ruler is provided with a first scale line and a foot ruler, the first scale line is parallel to a first side of the main ruler, the foot ruler is arranged along a direction perpendicular to the first scale line, an alignment end of the foot ruler is aligned with the first scale line, and the foot ruler is in sliding fit with the main ruler. A fastening and loosening assembly is arranged between the main ruler and the foot ruler so as to fasten or loosen the foot ruler and the main ruler. According to the utility model, the foot ruler is arranged and can slide along the main ruler, so that the problem that the external dimensions of an ultra-wide welding seam and an ultra-high fillet welding seam are difficult to measure can be effectively solved, and the measuring range of the ruler is widened.

Description

Technical Field

[0001] This utility model relates to the field of weld inspection technology, specifically to a weld inspection ruler. Background Technology

[0002] To meet the radiation protection requirements of nuclear power plants, the structural modules and equipment used in the prefabrication and installation phases of nuclear power plants under construction use very thick plates, which are connected by welding. This results in a large amount of welding, and the weld width and height are quite large. Conventional weld inspection rulers cannot meet the dimensional measurement requirements of welds exceeding a certain width and height (such as misalignment and weld leg height). It is necessary to use multiple rulers in combination or to process suitable spacers. However, using multiple rulers in combination is inconvenient, while processing spacers has a long cycle and low measurement accuracy, which seriously restricts the efficiency and effectiveness of on-site inspection.

[0003] Therefore, this patent application is filed. Utility Model Content

[0004] The purpose of this utility model is to provide a weld inspection ruler with a movable foot, which effectively solves the problem of difficult measurement of the appearance dimensions of ultra-wide welds and ultra-high fillet welds, and expands the measurement range of the ruler.

[0005] This utility model is achieved through the following technical solution:

[0006] A weld inspection ruler includes a main ruler with a first scale line and a foot ruler. The first scale line is parallel to a first side of the main ruler. The foot ruler is arranged in a direction perpendicular to the first scale line, and the alignment end of the foot ruler is aligned with the first scale line. The foot ruler is slidably engaged with the main ruler. A fastening / loosening assembly is provided between the main ruler and the foot ruler to fasten or loosen the foot ruler and the main ruler.

[0007] In an optional embodiment, the main scale has a hollowed-out groove located on one side of the first scale line and parallel to the first scale line. The main scale also has a groove, and the foot scale has a protrusion that mates with the groove to guide sliding. The groove surrounds the hollowed-out groove. The fastening and loosening assembly includes a fastening screw and a matching rivet. The fastening screw and the matching rivet are located on opposite sides of the main scale. One end of the matching rivet engages with the hollowed-out groove, and the other end passes through the hollowed-out groove and is threadedly engaged with the fastening screw.

[0008] In an optional embodiment, the measuring end of the foot ruler is flush with the end face of the first measuring end of the main ruler.

[0009] In an optional embodiment, the main ruler has a first side, a second side, a hypotenuse, and a first measuring end. The first side is perpendicular to the second side, the second side and the hypotenuse are located on opposite sides of the first side, the angle between the first side and the hypotenuse is 5°, the first measuring end is connected to the hypotenuse, and the angle between the vertical side of the first measuring end and the hypotenuse is 5°.

[0010] In an optional embodiment, the main scale is further provided with a slide ruler, which has a second scale line perpendicular to the first scale line. The slide ruler is located on the side of the first scale line away from the first measuring end, and the slide ruler and the main scale can be fixedly slidably engaged.

[0011] In an optional embodiment, a fastening / loosening assembly is provided between the slide ruler and the main ruler to fasten or loosen the slide ruler and the main ruler.

[0012] In an optional embodiment, the slide ruler is provided with a hollowed-out groove, and the fastening and loosening component between the slide ruler and the main ruler has the same structure as the fastening and loosening component between the foot ruler and the main ruler.

[0013] In an optional embodiment, the main scale is provided with a third scale line and a fourth scale line, the third scale line and the fourth scale line are respectively located on both sides of the slide, and the third scale line is aligned with the second scale line on the slide.

[0014] In an optional embodiment, one end of the slide is tapered, and the other end is tapered and has a flat end face.

[0015] In an optional embodiment, the smallest scale unit of the second scale line is 0.05 mm, and the smallest scale unit of the third scale line is 1 mm.

[0016] The advantages and beneficial effects of this utility model compared to the prior art are:

[0017] This utility model provides a weld inspection ruler that, by incorporating a sliding foot that slides along the main ruler, effectively solves the problem of difficult measurement of the appearance dimensions of ultra-wide and ultra-high fillet welds. This expands the ruler's measurement range, extending fillet welds to 0-50mm and widths to 0-70mm. Simultaneously, the foot can serve as a measurement support point, which can be moved according to actual conditions, significantly improving stability during measurement. This utility model's inspection ruler not only facilitates visual inspection but also greatly shortens inspection time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0019] Figure 1 A schematic diagram of the structure of the inspection ruler provided in an embodiment of this utility model.

[0020] Figure 2 This is a structural diagram of the main scale for inspection.

[0021] Figure 3 This is a structural diagram of a fastening screw and a matching rivet.

[0022] Figure 4 This is a schematic diagram showing the state when measuring the weld reinforcement.

[0023] Figure 5 This is a schematic diagram showing the state when measuring the height of the solder joint.

[0024] Figure 6 This is a schematic diagram showing the state when measuring the bite depth.

[0025] Figure 7 This is a schematic diagram showing the state when measuring the weld throat.

[0026] Figure 8 This is a schematic diagram showing the state when measuring the weld width.

[0027] Figure 9 This is a schematic diagram of the state when measuring misaligned edges.

[0028] The attached diagram shows the markings and corresponding component names:

[0029] 1-Main scale, 101-First side, 102-Second side, 103-Bevel, 104-First measuring end, 2-First scale line, 3-Foot scale, 4-Hollowed groove, 501-Fasting screw, 502-Adaptive rivet, 6-Slide scale, 7-Second scale line, 8-Third scale line, 9-Fourth scale line, 11-Groove. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0031] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0032] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0034] Example 1:

[0035] like Figures 1-3 As shown, a weld inspection gauge includes a main scale 1, which has a first side 101, a second side 102, an inclined side 103, and a first measuring end 104. The first side 101 is perpendicular to the second side 102, and the length of the first side 101 is greater than the length of the second side 102. The second side 102 and the inclined plate are located on opposite sides of the first side 101. The angle between the first side 101 and the inclined side 103 is 135°. The first measuring end 104 is connected to the inclined side 103, and the angle between the vertical side of the first measuring end 104 and the inclined side 103 is 135°. During inspection, the first measuring end 104 can contact the workpiece to be measured, and the inclined side 103 can also contact the workpiece to be measured as a measuring surface.

[0036] The main scale 1 has a first graduation line 2 and a foot scale 3. The first graduation line 2 is parallel to the first side 101 of the main scale 1 and serves as a horizontal graduation. The foot scale 3 is arranged perpendicular to the first graduation line 2, and the aligned end of the foot scale 3 is aligned with the first graduation line 2. The foot scale 3 and the main scale 1 are in a sliding fit. A fastening and loosening component is provided between the main scale 1 and the foot scale 3 to fasten the foot scale 3 and the main scale 1, or to loosen the main scale 1 and the foot scale 3 for sliding.

[0037] The weld inspection ruler in this embodiment, by setting a foot ruler 3, can slide along the main ruler 1, effectively solving the problem of difficult measurement of the appearance dimensions of ultra-wide and ultra-high fillet welds, and expanding the measurement range of the ruler. This inspection ruler not only brings convenience to visual inspection (multiple rulers used in combination), but also greatly shortens the inspection time (processing suitable pads takes time). At the same time, the foot ruler can serve as a measurement support point, which can be moved according to actual conditions, greatly improving the stability during the measurement process.

[0038] Furthermore, a hollow groove 4 is provided on the main scale 1. The hollow groove 4 is located on one side of the first scale line 2 and is parallel to the first scale line 2. A groove 11 is provided around the hollow groove 4, and the groove 11 is completely surrounded by the hollow groove 4. The groove 11 is set on the main scale 1 and is recessed inward. Two protrusions are provided on the side of the foot scale 3. There is a gap between the two protrusions. The two protrusions are respectively engaged in the grooves 11 on both sides of the hollow groove 4 and can slide with the grooves 11, which guides and limits the left and right sliding of the foot scale 3.

[0039] The fastening / loosening assembly includes a fastening screw and a matching rivet 502. The fastening screw and the matching rivet 502 are located on opposite sides of the main scale 1. One end of the matching rivet 502 is engaged with the slot 4, and the other end passes through the slot 4 and is threaded into the fastening screw. In use, tightening the fastening screw will firmly hold the ruler 3 onto the main scale 1, while loosening the fastening screw will allow the ruler 3 to slide for measurement. In this embodiment, the matching rivet 502 is used in conjunction with the fastening screw, which allows for tightening and observation during measurement while preventing parts from falling off or being lost.

[0040] Even better, the measuring end of the foot ruler 3 is flush with the end face of the first measuring end 104 of the main ruler 1. This design allows the foot ruler 3 to simultaneously act as a movable support leg. When the first measuring end 104 of the main ruler 1 contacts the workpiece to be measured, the end of the foot ruler 3 also contacts the workpiece, providing a support fulcrum. This makes the measurement more stable, allows the foot ruler 3 to be clamped more precisely, and reduces measurement errors. Thus, it solves the difficulty of verifying measurement accuracy when measuring ultra-wide welds. More preferably, the measuring end of the foot ruler 3 has a wedge-shaped end face.

[0041] Example 2:

[0042] Based on Embodiment 1, the main scale 1 is further provided with a sliding scale 6, which contacts the main scale 1. The sliding scale 6 has a second graduation line 7 as a vertical graduation, perpendicular to the first graduation line 2. The sliding scale 6 is located to the side of the first graduation line 2 away from the first measuring end 104, forming a structure where the foot ruler is located between the first measuring end 104 and the sliding scale 6. The sliding scale 6 is arranged parallel to the second graduation line 7, and the sliding scale 6 and the main scale 1 can be fixedly slidably engaged. Similarly, a groove can be provided on the main scale 1, and a protrusion can be provided on the sliding scale 6 to mate with the groove, allowing the sliding scale to slide with the main scale. The sliding engagement method between the sliding scale and the main scale 1 is the same as that between the foot ruler 3 and the main scale 1, and will not be described in detail here.

[0043] A fastening / loosening assembly can be provided between the sliding ruler 6 and the main ruler 1 to fasten or loosen the sliding ruler 6 and the main ruler 1. Specifically, a slot 4 is also provided on the sliding ruler 6, which passes through the main ruler 1. The fastening / loosening assembly between the sliding ruler 6 and the main ruler 1 can have the same structure as the fastening / loosening assembly between the foot ruler 3 and the main ruler 1. An adapter rivet 502 passes through the slot 4 through the main ruler 1 and the sliding ruler 6, and the sliding and fixing between the sliding ruler 6 and the main ruler 1 are controlled by the adapter rivet 502 and the fastening screw 501.

[0044] The main scale 1 also has a third scale line 8 and a fourth scale line 9, which are located on both sides of the slide ruler 6. The third scale line 8 is aligned with the second scale line 7 on the slide ruler 6. The third scale line 8 and the fourth scale line 9 are parallel, and the fourth scale line 9 is also aligned with the edge of the slide ruler 6. More preferably, in this embodiment, the smallest scale unit of the second scale line is set to 0.05mm, and the smallest scale unit of the third scale line is set to 1mm. This improves the measurement accuracy of the slide ruler to 0.05mm, which is significantly higher than the measurement accuracy of existing inspection rulers.

[0045] Furthermore, one end of the slide ruler 6 is a conical structure, and the other end is conical with a flat end face, used to measure different test surfaces of the workpiece to be tested.

[0046] In this invention, the main ruler 1, foot ruler 3, and sliding ruler 6 can all be made of stainless steel, ensuring the robustness and durability of the weld inspection ruler.

[0047] The inspection ruler in this embodiment effectively solves the problem of difficult measurement of the appearance dimensions of ultra-wide and ultra-high fillet welds. Through technological innovation, it improves measurement stability, reduces measurement errors, and expands the ruler's measurement range (fillet welds widened to 0-50mm, and widths widened to 0-70mm). The successful design of this ruler not only facilitates visual inspection (multiple rulers can be used in combination) but also significantly shortens inspection time (processing suitable pads requires time). This utility model has a reasonable and simple structure, a concise appearance, is easy to carry, and has a large measurement range. It is suitable for complex structures, ultra-wide and ultra-high fillet welds in nuclear industry systems, as well as welds in other industries with high welding quality requirements.

[0048] The inspection process using the inspection ruler of this utility model is as follows:

[0049] 1. Measurement of weld reinforcement height: First, place the main ruler 1 and the foot ruler 3 at a certain distance, tighten the foot ruler 3, and then slide the slide ruler 6 to contact the weld point. The reading of the slide ruler 6 is the weld height. Figure 4 As shown in the image.

[0050] 2. Measurement of weld leg height: Place the two working surfaces of the main scale 1 firmly against the workpiece surface and the weld seam. Slide the slide ruler 6 until it contacts the other surface of the workpiece. The reading on the slide ruler 6 is the weld leg height. Figure 5 As shown in the image.

[0051] 3. Measurement of the bite depth: First, place the main ruler 1 and the foot ruler 3 at a certain distance, tighten the foot ruler 3, and slide the slide ruler 6 to measure the bite depth. The reading of the slide ruler 6 is the bite depth. Figure 6 As shown in the image.

[0052] 4. Measurement of the weld throat: First, place the working surface of the main ruler 1 firmly against the workpiece surface, then slide the slide ruler 6 until it contacts the weld seam. The reading on the slide ruler 6 is the weld throat. Figure 7 As shown in the image.

[0053] 5. Measurement of weld width: Slide the ruler 3 so that the main ruler 1 and the ruler 3 are respectively close to both sides of the weld. The reading on the ruler 3 is the weld width. Figure 8 As shown in the image.

[0054] 6. Measurement of misalignment: First, place the main ruler 1 and the foot ruler 3 at a certain distance, tighten the foot ruler 3, and place the main ruler 1 and the foot ruler 3 on surface A. Slide the slide ruler 6 until it contacts the other surface B of the workpiece. The reading of the slide ruler 6 is the misalignment. Figure 9 As shown in the image.

[0055] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A weld inspection ruler, comprising a main ruler (1), characterized in that, The main ruler (1) is provided with a first scale line (2) and a foot ruler (3). The first scale line (2) is parallel to the first side (101) of the main ruler (1). The foot ruler (3) is arranged in a direction perpendicular to the first scale line (2), and the alignment end of the foot ruler (3) is aligned with the first scale line (2). The foot ruler (3) is slidably engaged with the main ruler (1). A fastening and loosening assembly is provided between the main ruler (1) and the foot ruler (3) to fasten or loosen the foot ruler (3) and the main ruler (1).

2. The weld inspection gauge according to claim 1, characterized in that, The main ruler (1) is provided with a hollow groove (4), the hollow groove (4) is located on one side of the first scale line (2) and is parallel to the first scale line (2), the main ruler (1) is provided with a groove (11), the foot ruler (3) is provided with a protrusion that cooperates with the groove (11) to guide the sliding, and the groove (11) surrounds the hollow groove (4); The fastening and loosening assembly includes a fastening screw and a matching rivet (502). The fastening screw and the matching rivet (502) are located on both sides of the main ruler (1). One end of the matching rivet (502) is engaged with the hollow groove (4), and the other end passes through the hollow groove (4) and is threadedly engaged with the fastening screw.

3. A weld inspection ruler according to claim 2, characterized in that, The measuring end of the foot ruler (3) is flush with the end face of the first measuring end (104) of the main ruler (1).

4. A weld inspection gauge according to claim 1, characterized in that, The main ruler (1) has a first side (101), a second side (102), a hypotenuse (103), and a first measuring end (104). The first side (101) is perpendicular to the second side (102). The second side (102) and the hypotenuse (103) are located on both sides of the first side (101). The angle between the first side (101) and the hypotenuse (103) is 135°. The first measuring end (104) is connected to the hypotenuse (103). The angle between the vertical side of the first measuring end (104) and the hypotenuse (103) is 135°.

5. A weld inspection gauge according to claim 4, characterized in that, The main scale (1) is also provided with a sliding scale (6), and the sliding scale (6) is provided with a second scale line (7). The second scale line (7) is perpendicular to the first scale line (2). The sliding scale (6) is located on the side of the first scale line (2) away from the first measuring end. The sliding scale (6) and the main scale (1) can be fixedly slidably engaged.

6. A weld inspection gauge according to claim 5, characterized in that, A fastening / loosening assembly is provided between the sliding ruler (6) and the main ruler (1) to fasten or loosen the sliding ruler (6) and the main ruler (1).

7. A weld inspection ruler according to claim 6, characterized in that, The sliding ruler (6) is provided with a hollow groove (4), and the fastening and loosening component between the sliding ruler (6) and the main ruler (1) has the same structure as the fastening and loosening component between the foot ruler (3) and the main ruler (1).

8. A weld inspection gauge according to any one of claims 5 to 7, characterized in that, The main ruler (1) is provided with a third scale line (8) and a fourth scale line (9). The third scale line (8) and the fourth scale line (9) are located on both sides of the sliding ruler (6). The third scale line (8) is aligned with the second scale line (7) on the sliding ruler (6).

9. A weld inspection gauge according to claim 8, characterized in that, One end of the sliding ruler (6) is a conical structure, and the other end is conical with a straight end face.

10. A weld inspection gauge according to claim 8, characterized in that, The smallest scale unit of the second scale line is 0.05mm, and the smallest scale unit of the third scale line is 1mm.

Images