Weld joint detection device and manufacturing method thereof

Abstract

The invention relates to the technical field of detection tools, and provides a weld joint detection device and a manufacturing method thereof.The weld joint detection device comprises an upper limit detection plate and a lower limit detection plate, the upper limit detection plate and the lower limit detection plate are each provided with a first detection point, a second detection point and at least one reference edge, and the reference edge is attached to a base metal corresponding to a weld joint to be detected; an avoiding gap is formed between the first detection point and the second detection point; the relative position of the first detection point and the second detection point of the upper limit detection plate is determined according to the upper limit value of the length reference interval of the to-be-detected weld leg, and the relative position of the first detection point and the second detection point of the lower limit detection plate is determined according to the lower limit value of the length reference interval of the to-be-detected weld leg. According to the arrangement, the corresponding upper limit detection plate and the lower limit detection plate are arranged according to the structural requirements of the to-be-detected weld joint, whether the length of the weld leg of the to-be-detected weld joint is qualified or not can be determined by comparing the upper limit detection plate and the lower limit detection plate with the to-be-detected weld joint, the detection steps are simple, time is saved, and the working efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of detection tooling, and in particular to a weld detection device and a manufacturing method thereof. Background Art

[0002] Welding is a manufacturing process and technology that joins metals or other thermoplastic materials by heating, high temperature or high pressure. The weld is formed by melting the welding rod and the parent material at the joint using the high temperature of the welding heat source. After the weld metal cools, the two parent materials can be connected into a whole. To ensure the quality of the product, it is necessary to check whether the weld leg length meets the requirements after welding.

[0003] At present, weld inspection plates are generally used to detect the length of weld legs. The weld inspection plates in the prior art have multiple inspection notches of different specifications. When detecting the length of weld legs, it is necessary to repeatedly and tentatively compare the inspection notches of different specifications until the inspection notch matches the weld, and then the length of weld legs can be measured. After measuring the length of weld legs, the measured length of weld legs is compared with the standard value of weld leg length to determine whether the length of weld legs is qualified. The measurement steps are cumbersome, time-consuming, and work efficiency is low.

[0004] Therefore, how to solve the problems of complicated measurement steps and low work efficiency in the prior art when detecting whether the weld leg length of a weld is qualified has become an important technical problem to be solved by those skilled in the art. Summary of the invention

[0005] The present invention provides a weld detection device and a manufacturing method thereof, which are used to solve the defects of complicated measurement steps and low work efficiency in the prior art when detecting whether the weld leg length of the weld is qualified, and realize rapid detection of whether the weld leg length of the weld is qualified, simplify the detection steps, save time, and help improve work efficiency.

[0006] The present invention provides a weld detection device, comprising an upper limit detection plate and a lower limit detection plate, wherein the upper limit detection plate and the lower limit detection plate each have a first detection point, a second detection point and at least one reference edge, wherein the reference edge is suitable for fitting with a parent material corresponding to a weld to be detected, the first detection point is located at one end of the reference edge, the second detection point is located outside the reference edge, the second detection point is suitable for abutting against another parent material corresponding to the weld to be detected, and an avoidance gap for avoiding the weld to be detected is formed between the first detection point and the second detection point;

[0007] The relative position of the first detection point and the second detection point on the upper limit detection plate is determined according to the upper limit value of the length reference interval of the weld leg to be measured and the weld angle, and the relative position of the first detection point and the second detection point on the lower limit detection plate is determined according to the lower limit value of the length reference interval of the weld leg to be measured and the weld angle.

[0008] According to a weld inspection device provided by the present invention, the relative positions of the first inspection point and the second inspection point include a first distance and a second distance, the first distance being the distance between the first inspection point and the second inspection point along a direction parallel to the reference edge, and the second distance being the distance between the first inspection point and the second inspection point along a direction perpendicular to the reference edge;

[0009] One of the first distance and the second distance of the upper limit detection plate is determined according to the upper limit value of the length reference interval of the weld leg to be measured, the virtual value of the other weld leg of the weld to be measured and the weld angle, and the other is determined according to the virtual value of the other weld leg and the weld angle, and the virtual value of the other weld leg is greater than the upper limit value of the length reference interval of the other weld leg;

[0010] One of the first distance and the second distance of the lower limit detection plate is determined according to the lower limit value of the length reference interval of the weld leg to be measured, the virtual value of the other weld leg and the weld angle, and the other is determined according to the virtual value of the other weld leg and the weld angle.

[0011] According to a weld detection device provided by the present invention, the weld to be detected includes a first weld leg and a second weld leg, a length reference interval corresponding to the first weld leg is a first reference interval, and a length reference interval corresponding to the second weld leg is a second reference interval;

[0012] When the first reference interval is consistent with the second reference interval and the two base materials corresponding to the weld to be measured are both planes, one upper limit detection plate and one lower limit detection plate are each provided; and / or, when the first reference interval is different from the second reference interval, two upper limit detection plates and two lower limit detection plates are each provided, the two upper limit detection plates respectively correspond to the upper limit value of the first reference interval and the upper limit value of the second reference interval, and the two lower limit detection plates respectively correspond to the lower limit value of the first reference interval and the lower limit value of the second reference interval.

[0013] According to a weld detection device provided by the present invention, the upper limit detection plate and the lower limit detection plate have two reference edges, and the two reference edges are suitable for respectively fitting with the two base materials corresponding to the weld to be tested, and the two reference edges are respectively located on the side of the first detection point and the second detection point away from the avoidance gap.

[0014] According to a weld detection device provided by the present invention, when the two base materials corresponding to the weld to be detected are both planes, the two reference edges extend along a straight line, and the angle between the two reference edges is consistent with the weld angle.

[0015] According to a weld detection device provided by the present invention, one of the two base materials corresponding to the weld to be tested is a plane and the other is a cylindrical surface, and the plane is parallel to the axis of the cylindrical surface, one of the reference edges extends along a straight line and the other reference edge extends along an arc line, and the diameter of the arc line is consistent with the diameter of the cylindrical surface.

[0016] According to a weld inspection device provided by the present invention, the boundary of the avoidance gap is located on a side of the straight line where the first inspection point and the second inspection point are located close to the reference edge.

[0017] According to a weld detection device provided by the present invention, the boundary of the avoidance gap includes a first boundary line and a second boundary line, the first boundary line is perpendicular to the second boundary line, and the first boundary line is perpendicular to the reference edge.

[0018] The present invention also provides a method for manufacturing a weld detection device, which is used to manufacture the weld detection device, comprising:

[0019] Determine cross-sectional data of the weld to be measured according to structural requirements of the weld to be measured, wherein the cross-sectional data includes a first reference interval corresponding to the first weld leg, a second reference interval corresponding to the second weld leg, and a weld angle;

[0020] Determine, according to the cross-sectional data, the reference edges on the upper limit detection plate and the lower limit detection plate and the relative position information of the first detection point and the second detection point, respectively, wherein the relative position information includes the spacing between the first detection point and the second detection point along a direction parallel to the reference edge and the spacing between the first detection point and the second detection point along a direction perpendicular to the reference edge;

[0021] The boundary line of the avoidance gap is determined according to the relative position information, and the avoidance gap is processed according to the boundary line of the avoidance gap.

[0022] According to the manufacturing method of the weld detection device provided by the present invention, when the first reference interval is different from the second reference interval, the upper limit detection plate includes a first upper limit detection plate and a second upper limit detection plate, the first upper limit detection plate is suitable for detecting the relationship between the length of the first weld leg and the upper limit value of the first reference interval, the second upper limit detection plate is suitable for detecting the relationship between the length of the second weld leg and the upper limit value of the second reference interval, the lower limit detection plate includes a first lower limit detection plate and a second lower limit detection plate, the first lower limit detection plate is suitable for detecting the relationship between the length of the first weld leg and the lower limit value of the first reference interval, and the second lower limit detection plate is suitable for detecting the relationship between the length of the second weld leg and the lower limit value of the second reference interval;

[0023] The step of determining the reference edges on the upper limit detection plate and the lower limit detection plate and the relative position information of the first detection point and the second detection point respectively according to the cross-sectional data includes:

[0024] Determine the location of the reference edge;

[0025] Determining the relative position information on the first upper limit detection plate according to the upper limit value of the first reference interval, the virtual value of the second weld leg and the weld angle, wherein the virtual value of the second weld leg is greater than the upper limit value of the second reference interval;

[0026] Determining the relative position information on the second upper limit detection plate according to the upper limit value of the second reference interval, the virtual value of the first weld leg and the weld angle, wherein the virtual value of the first weld leg is greater than the upper limit value of the second reference interval;

[0027] Determining the relative position information on the first lower limit detection plate according to the lower limit value of the first reference interval, the virtual value of the second weld leg and the weld angle;

[0028] The relative position information on the second lower limit detection plate is determined according to the lower limit value of the second reference interval, the virtual value of the first weld leg and the weld angle.

[0029] The weld detection device provided by the present invention includes an upper limit detection plate and a lower limit detection plate, and both the upper limit detection plate and the lower limit detection plate have a first detection point, a second detection point and at least one reference edge. The reference edge is used to fit with a base material corresponding to the weld to be tested, and the first detection point is located at one end of the reference edge, and is used to detect the weld toe position of the weld leg parallel to the reference edge. The second detection point is located outside the reference edge, and the second detection point is used to abut against another base material corresponding to the weld to be tested, and detect the weld toe position of another weld leg of the weld to be tested. An avoidance gap is formed between the first detection point and the second detection point, which is used to avoid the weld to be tested, so as to ensure the accuracy of the comparison result of the first detection point and the second detection point when compared with the weld toe during the detection process. The relative position of the first detection point and the second detection point on the upper limit detection plate is determined according to the upper limit value of the length reference interval of the weld leg to be tested of the weld to be tested and the weld angle. The avoidance notch of the upper limit detection plate is compared with the weld to be tested. According to the relative position of the weld toe of the weld leg to be tested and the first detection point and the second detection point, it can be directly determined whether the length of the weld leg to be tested of the weld to be tested meets the upper limit value of the length reference interval corresponding to the weld leg to be tested. The relative position of the first detection point and the second detection point on the lower limit detection plate is determined according to the lower limit value of the length reference interval of the weld leg to be tested of the weld to be tested and the weld angle. The avoidance notch of the lower limit detection plate is compared with the weld to be tested. According to the relative position of the weld toe of the weld leg to be tested and the first detection point and the second detection point, it can be directly determined whether the length of the weld leg to be tested of the weld to be tested meets the lower limit value of the length reference interval corresponding to the weld leg to be tested. With such a configuration, it is only necessary to compare the upper limit detection plate and the lower limit detection plate with the weld to be tested according to the structural requirements of the weld to be tested, so as to quickly determine whether the weld leg length of the weld to be tested is qualified. The detection steps are simple, time is saved, and it is conducive to improving work efficiency. It solves the problems of complicated measurement steps and low work efficiency in the prior art when detecting whether the weld leg length of the weld is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of the first upper limit detection plate when the two parent materials of the weld to be tested provided by the present invention are both planes;

[0032] Figure 2 It is a structural schematic diagram of the second upper limit detection plate when the two parent materials of the weld to be tested provided by the present invention are both planes;

[0033] Figure 3It is a structural schematic diagram of the first upper limit detection plate when the first parent material of the weld to be tested provided by the present invention is a plane and the second parent material is a cylindrical surface;

[0034] Figure 4 The schematic diagram of the structure of the second upper limit detection plate when the first parent material of the weld to be tested is a plane and the second parent material is a cylindrical surface provided by the present invention

[0035] Figure 5 The present invention is a flowchart of a method for manufacturing a weld inspection plate.

[0036] Reference numerals:

[0037] 1. First detection point; 2. Second detection point; 3. Reference edge; 4. First upper limit detection plate; 5. Second upper limit detection plate; 6. First parent material; 7. Second parent material. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Combine the following Figures 1 to 5 A weld inspection device according to an embodiment of the present invention is described.

[0040] like Figures 1 to 5 As shown, an embodiment of the present invention provides a weld detection device, including an upper limit detection plate and a lower limit detection plate.

[0041] Specifically, both the upper limit detection plate and the lower limit detection plate have a first detection point 1 , a second detection point 2 and at least one reference edge 3 .

[0042] The reference edge 3 is used to fit with a base material corresponding to the weld to be tested. The first detection point 1 is located at one end of the reference edge 3 and is used to detect the weld toe position of the weld leg parallel to the reference edge 3 .

[0043] The second detection point 2 is located outside the reference edge 3, and is used to abut against another base material corresponding to the weld to be tested, and detect the weld toe position of another weld leg of the weld to be tested.

[0044] An avoidance gap is formed between the first detection point 1 and the second detection point 2 for avoiding the weld to be tested, thereby ensuring the accuracy of the comparison results of the first detection point 1 and the second detection point 2 when compared with the weld toe during the detection process.

[0045] The relative position of the first detection point 1 and the second detection point 2 on the upper limit detection plate is determined according to the upper limit value of the length reference interval of the weld leg to be tested of the weld to be tested and the weld angle. By comparing the avoidance notch of the upper limit detection plate with the weld to be tested, according to the relative position of the weld toe of the weld leg to be tested and the first detection point 1 and the second detection point 2, it can be directly determined whether the length of the weld leg to be tested of the weld to be tested meets the upper limit value of the length reference interval corresponding to the weld leg to be tested.

[0046] The relative positions of the first detection point 1 and the second detection point 2 on the lower limit detection plate are determined according to the lower limit value of the length reference interval of the weld leg to be measured of the weld to be measured and the weld angle. The avoidance notch of the lower limit detection plate is compared with the weld to be measured. According to the relative positions of the weld toe of the weld leg to be measured and the first detection point 1 and the second detection point 2, it can be directly determined whether the length of the weld leg to be measured of the weld to be measured meets the lower limit value of the length reference interval corresponding to the weld leg to be measured.

[0047] With such a configuration, it is only necessary to compare the upper limit detection plate and the lower limit detection plate with the weld to be tested according to the structural requirements of the weld to be tested, so as to quickly determine whether the weld leg length of the weld to be tested is qualified. The detection steps are simple, time is saved, and it is conducive to improving work efficiency. It solves the problems of complicated detection steps and low work efficiency in the prior art when detecting whether the weld leg length of the weld is qualified.

[0048] In this embodiment, the determination of the relative position of the first detection point 1 and the second detection point 2 on the upper limit detection plate and the determination of the relative position of the first detection point 1 and the second detection point 2 on the lower limit detection plate are both related to the weld angle, and can be applied to the detection of welds with weld angles of any angle. The weld angle can be any one of an acute angle, a right angle, an obtuse angle, and a flat angle. This embodiment realizes the detection of welds at any angle, which can significantly improve the quality of the weld and the work efficiency.

[0049] The relative position of the first detection point 1 and the second detection point 2 includes a first distance and a second distance. The first distance is the distance between the first detection point 1 and the second detection point 2 along a direction parallel to the reference edge 3. Figure 1 The second distance is the distance between the first detection point 1 and the second detection point 2 along the direction perpendicular to the reference edge 3, that is, the second distance is the distance between the second detection point 2 and the reference edge 3, refer to Figure 1 The distance indicated by y in .

[0050] In this embodiment, one of the first distance and the second distance of the upper limit detection plate is determined according to the upper limit value of the length reference interval of the weld leg to be measured, the virtual value of the other weld leg of the weld to be measured and the weld angle, and the other is determined according to the virtual value of the other weld leg and the weld angle, and the virtual value of the other weld leg is greater than the upper limit value of the length reference interval of the other weld leg.

[0051] For example, the two parent materials corresponding to the weld to be measured are the first parent material 6 and the second parent material 7. Among the two weld legs and two weld toes of the weld to be measured, the first weld leg and the first weld toe are close to the first parent material 6, and the second weld leg and the second weld toe are close to the second parent material 7. The length reference interval corresponding to the first weld leg is the first reference interval, and the length reference interval corresponding to the second weld leg is the second reference interval.

[0052] The reference edge 3 may be provided to be in contact with the first base material 6 .

[0053] When it is necessary to detect whether the length of the first weld leg meets the upper limit value requirement of the first reference interval, the first weld leg is the weld leg to be tested, and the second weld leg is the other weld leg. At this time, a value greater than the upper limit value of the second reference interval can be selected as the virtual value of the second weld leg, and then the second distance is determined according to the virtual value of the second weld leg and the weld angle, and then the first distance is determined according to the upper limit value of the first reference interval, the virtual value of the second weld leg and the weld angle. In this way, the relative positions of the reference edge 3, the first detection point 1 and the second detection point 2 can be determined, and the upper limit detection plate can be obtained by machining the avoidance gap between the first detection point 1 and the second detection point 2. The upper limit detection plate is called the first upper limit detection plate 4.

[0054] The first upper limit detection plate 4 can be used to detect whether the length of the first weld leg of any weld that meets the above-mentioned weld angle, first reference interval and second reference interval requirements meets the upper limit value requirement of the first reference interval, and has strong versatility.

[0055] When inspecting the first weld leg, fit the reference edge 3 with the first parent material 6, move the first upper limit inspection plate 4 toward the weld root, and observe the relative position of the first inspection point 1 and the first weld toe, and the relative position of the second inspection point 2 and the second parent material 7. If the second inspection point 2 abuts against the second parent material 7, and the first weld toe just touches the first inspection point 1 or there is a gap between the first weld toe and the first inspection point 1, it means that the length of the first weld leg is less than or equal to the upper limit of the first reference interval, which meets the requirements. If the first weld toe has abutted against the first inspection point 1, but the second inspection point 2 has not abutted against the second parent material 7, it means that the length of the first weld leg is greater than the upper limit of the first reference interval, which does not meet the requirements.

[0056] When it is necessary to detect whether the length of the second weld leg meets the upper limit value requirement of the second reference interval, the second weld leg is the weld leg to be tested, and the first weld leg is the other weld leg. At this time, a value greater than the upper limit value of the first reference interval can be selected as the virtual value of the first weld leg, and then the first distance is determined according to the virtual value of the first weld leg and the weld angle, and then the second distance is determined according to the upper limit value of the second reference interval, the virtual value of the first weld leg and the weld angle. In this way, the relative positions of the reference edge 3, the first detection point 1 and the second detection point 2 can be determined, and the upper limit detection plate can be obtained by machining the avoidance gap between the first detection point 1 and the second detection point 2. The upper limit detection plate is called the second upper limit detection plate 5.

[0057] The second upper limit detection plate 5 can be used to detect whether the length of the second weld leg of any weld that meets the above-mentioned weld angle, first reference interval and second reference interval requirements meets the upper limit value requirement of the second reference interval, and has strong versatility.

[0058] When inspecting the second weld leg, fit the reference edge 3 with the first parent material 6, and move the second upper limit inspection plate 5 in the direction close to the weld root. Then observe the relative position of the second inspection point 2 and the second weld toe. If the second inspection point 2 abuts against the second parent material 7, and the second inspection point 2 and the second weld toe are just in contact or there is a gap between the second weld toe and the second inspection point 2, it means that the length of the second weld leg is less than or equal to the upper limit value of the second reference interval, which meets the requirements. If the second inspection point 2 does not abut against the second parent material 7, but the second inspection point 2 has abutted against the weld, it means that the length of the second weld leg is greater than the upper limit value of the second reference interval, which does not meet the requirements.

[0059] Correspondingly, one of the first distance and the second distance of the lower limit detection plate is determined according to the lower limit value of the length reference interval of the weld leg to be measured, the virtual value of the other weld leg and the weld angle, and the other is determined according to the virtual value of the other weld leg and the weld angle.

[0060] For example, when it is necessary to detect whether the length of the first weld leg meets the lower limit value requirement of the first reference interval, the first weld leg is the weld leg to be tested, and the second weld leg is the other weld leg. At this time, a value greater than the upper limit value of the second reference interval can be selected as the virtual value of the second weld leg, and then the second distance is determined according to the virtual value of the second weld leg and the weld angle, and then the first distance is determined according to the lower limit value of the first reference interval, the virtual value of the second weld leg and the weld angle. In this way, the relative positions of the reference edge 3, the first detection point 1 and the second detection point 2 can be determined, and the lower limit detection plate can be obtained by machining an avoidance gap between the first detection point 1 and the second detection point 2. The lower limit detection plate is called the first lower limit detection plate.

[0061] The first lower limit detection plate can be used to detect whether the length of the first weld leg of any weld that meets the above-mentioned weld angle, first reference interval and second reference interval requirements meets the lower limit value requirement of the first reference interval, and has strong versatility.

[0062] When inspecting the first weld leg, fit the reference edge 3 with the first parent material 6, move the first lower limit inspection plate toward the weld root, and observe the relative position of the first inspection point 1 and the first weld toe, and the relative position of the second inspection point 2 and the second parent material 7. If the first weld toe abuts against the first inspection point 1, the second inspection point 2 just abuts against the second parent material 7, or the second inspection point 2 does not abut against the second parent material 7, it means that the length of the first weld leg is equal to or greater than the lower limit of the first reference interval, which meets the requirements. If the second inspection point 2 abuts against the second parent material 7, but there is a gap between the first inspection point 1 and the first weld toe, it means that the length of the first weld leg is less than the lower limit of the first reference interval, which does not meet the requirements.

[0063] When it is necessary to detect whether the length of the second weld leg meets the lower limit value requirement of the second reference interval, the second weld leg is the weld leg to be tested, and the first weld leg is the other weld leg. At this time, a value greater than the upper limit value of the first reference interval can be selected as the virtual value of the first weld leg, and then the first distance is determined according to the virtual value of the first weld leg and the weld angle, and then the second distance is determined according to the lower limit value of the second reference interval, the virtual value of the first weld leg and the weld angle. In this way, the relative positions of the reference edge 3, the first detection point 1 and the second detection point 2 can be determined, and the lower limit detection plate can be obtained by machining the avoidance gap between the first detection point 1 and the second detection point 2. The lower limit detection plate is called the second lower limit detection plate.

[0064] The second lower limit detection plate can be used to detect whether the length of the second weld leg of any weld that meets the above-mentioned weld angle, first reference interval and second reference interval requirements meets the lower limit value requirement of the second reference interval, and has strong versatility.

[0065] When inspecting the second weld leg, fit the reference edge 3 with the first parent material 6, and move the second lower limit inspection plate toward the weld root. Then observe the relative position of the second inspection point 2 and the second weld toe. If the second inspection point 2 does not abut against the second parent material 7, but the second inspection point 2 abuts against the weld, or the second inspection point 2 is in contact with both the second weld toe and the second parent material 7, it means that the length of the second weld leg is greater than or equal to the lower limit of the second reference interval, which meets the requirements. If the second inspection point 2 abuts against the second parent material 7 and there is a gap between the second inspection point 2 and the second weld toe, it means that the length of the second weld leg is less than the lower limit of the second reference interval, which does not meet the requirements.

[0066] It should be noted that when detecting the length of the first weld leg, the second distance is determined based on the virtual value of the second weld leg and the weld angle. When the reference edge 3 is attached to the first parent material 6, whether it is the upper limit detection plate or the lower limit detection plate, the distance between the second detection point 2 and the weld root is greater than the upper limit value of the second reference interval, which can avoid the problem of interference between the second weld toe and the second detection point 2 caused by the excessive length of the second weld leg, ensuring the smooth progress of the detection process. Similarly, when detecting the length of the second weld leg, the first distance is determined based on the virtual value of the first weld leg and the weld angle. When the reference edge 3 is attached to the first parent material 6, whether it is the upper limit detection plate or the lower limit detection plate, the distance between the first detection point 1 and the weld root is greater than the upper limit value of the first reference interval, which can avoid the problem of interference between the first weld toe and the first detection point 1 caused by the excessive length of the first weld leg, ensuring the smooth progress of the detection process.

[0067] Some welds are symmetrical welds, that is, the first reference interval is consistent with the second reference interval. At this time, if the first parent material 6 and the second parent material 7 corresponding to the weld to be tested are both planes, only one upper limit detection plate and one lower limit detection plate can be set. The same upper limit detection plate can detect whether the length of the first weld leg meets the upper limit value requirement (at this time, the reference edge 3 is in contact with the first parent material 6), and after flipping 180 degrees to make the reference edge 3 and the second parent material 7 fit, it can also detect whether the length of the second weld leg meets the upper limit value requirement. Similarly, the same lower limit detection plate can detect whether the length of the first weld leg meets the lower limit value requirement, and after flipping 180 degrees, it can also detect whether the length of the second weld leg meets the lower limit value requirement.

[0068] Some welds are asymmetric welds, that is, the first reference interval is different from the second reference interval, that is, the first reference interval is inconsistent with the second reference interval. In this case, two upper limit detection plates and two lower limit detection plates need to be set. Among them, the two upper limit detection plates correspond to the upper limit value of the first reference interval and the upper limit value of the second reference interval, respectively, and are used to detect whether the length of the first weld leg meets the upper limit value requirement of the first reference interval and whether the length of the second weld leg meets the upper limit value requirement of the second reference interval. The two lower limit detection plates correspond to the lower limit value of the first reference interval and the lower limit value of the second reference interval, respectively, and are used to detect whether the length of the first weld leg meets the lower limit value requirement of the first reference interval and whether the length of the second weld leg meets the lower limit value requirement of the second reference interval.

[0069] In some embodiments, only one reference edge 3 is provided, which reduces the number of reference edges 3 to be processed, and reduces the requirements for the processing amount and processing accuracy of the weld detection device, and only the relative positions of the first detection point 1, the second detection point 2 and the reference edge 3 need to be ensured. Compared with the processing requirements for the relative position angles of the two reference edges 3 when two reference edges 3 are provided, the requirements for the processing amount and processing accuracy are significantly reduced.

[0070] In other embodiments, both the upper limit detection plate and the lower limit detection plate have two reference edges 3, which are used to fit the first parent material 6 and the second parent material 7 respectively, and the two reference edges 3 are respectively located on the side of the first detection point 1 and the second detection point 2 away from the avoidance gap.

[0071] Both reference edges 3 can provide a reference for the placement of the upper limit detection plate and the lower limit detection plate, making the detection more convenient, making the placement of the upper limit detection plate and the lower limit detection plate more precise, and making the detection result more accurate.

[0072] When the first parent material 6 and the second parent material 7 are both planes, the two reference edges 3 extend along straight lines, and the angle between the two reference edges 3 is consistent with the weld angle.

[0073] When one of the two base materials corresponding to the weld to be measured is a plane and the other is a cylindrical surface, and the plane is parallel to the axis of the cylindrical surface, one of the reference edges 3 is extended along a straight line and the other reference edge 3 is extended along an arc line, and the diameter of the arc line is consistent with the diameter of the cylindrical surface.

[0074] In the embodiment of the present invention, the boundary of the avoidance gap is located on the side of the straight line where the first detection point 1 and the second detection point 2 are located close to the reference edge 3. The interference of the weld excess height on the upper limit detection plate or the lower limit detection plate can be reduced as much as possible, which can ensure the smooth progress of the detection process and the accuracy of the detection results.

[0075] The boundary line of the avoidance gap can be a straight line, an arc line or a broken line.

[0076] When the boundary line of the avoidance gap is a straight line, the straight line between the first detection point 1 and the second detection point 2 can be directly used as the boundary line of the avoidance gap. Figure 1 and Figure 2 .

[0077] When the boundary line of the avoidance gap is an arc, the center of curvature of the arc is located on the side of the arc far from the reference edge 3.

[0078] The boundary line of the avoidance gap is a broken line, that is, the boundary of the avoidance gap includes a first boundary line and a second boundary line, the first boundary line is perpendicular to the second boundary line, and the first boundary line is perpendicular to the reference edge 3. Figure 3 and Figure 4The straight boundary line is more convenient to process, and during processing, the first boundary line can be processed according to the second distance. The first boundary line provides a processing reference for the processing of the second boundary line, which is conducive to ensuring the processing accuracy of the second boundary line and ensuring the relative position accuracy of the second detection point 2 and the first detection point 1.

[0079] On the other hand, the present invention also provides a method for manufacturing a weld detection device provided in any of the above embodiments. The method for manufacturing a weld detection device described below can be referenced to the weld detection device described above.

[0080] like Figures 1 to 5 As shown, the manufacturing method of the weld detection device provided by the embodiment of the present invention includes:

[0081] Step 110: Determine cross-sectional data of the weld to be measured according to structural requirements of the weld to be measured, wherein the cross-sectional data includes a first reference interval corresponding to the first weld leg, a second reference interval corresponding to the second weld leg, and a weld angle.

[0082] Different weld structures have different weld angles and different requirements for weld leg length. The weld angle and the requirements for weld leg length are regarded as the cross-sectional data of the weld to be tested.

[0083] The weld detection device provided in the above embodiment has a corresponding relationship with the cross-sectional data of the weld to be detected. When manufacturing the weld detection device, it is necessary to first determine the cross-sectional data of the weld to be detected.

[0084] Step 120, based on the cross-sectional data, determine the reference edge 3 on the upper limit detection plate and the lower limit detection plate and the relative position information of the first detection point 1 and the second detection point 2 respectively, the relative position information including the distance between the first detection point 1 and the second detection point 2 along the direction parallel to the reference edge 3 and the distance between the first detection point 1 and the second detection point 2 along the direction perpendicular to the reference edge 3.

[0085] According to the above cross-sectional data, the reference edge 3 on the upper limit detection plate and the relative position information of the first detection point 1 and the second detection point 2 and the reference edge 3 on the lower limit detection plate and the relative position information of the first detection point 1 and the second detection point 2 can be determined respectively.

[0086] Step 130: determine the boundary line of the avoidance gap according to the relative position information, and process the avoidance gap according to the boundary line of the avoidance gap.

[0087] The straight line between the first detection point 1 and the second detection point 2 can be directly used as the boundary line of the avoidance gap; the arc passing through the first detection point 1 and the second detection point 2 can also be used as the boundary line of the avoidance gap, and the center of curvature of the arc is located on the side away from the reference edge 3; the broken line formed by the straight line passing through the first detection point 1 and perpendicular to the reference edge 3 and the straight line passing through the second detection point 2 and parallel to the reference edge 3 can also be used as the boundary line of the avoidance gap.

[0088] After the boundary line of the avoidance gap is determined, cutting is performed along the determined boundary line of the avoidance gap, and the area on the side of the boundary line away from the reference edge 3 is cut off.

[0089] The weld detection device manufactured by the manufacturing method of the weld detection device provided in the embodiment of the present invention includes an upper limit detection plate and a lower limit detection plate. Only by comparing the upper limit detection plate and the lower limit detection plate with the weld to be tested, it is possible to quickly determine whether the weld leg length of the weld to be tested is qualified, which is conducive to simplifying the detection steps, saving detection time, and improving work efficiency.

[0090] When the first reference interval is different from the second reference interval, the upper limit detection plate includes a first upper limit detection plate 4 and a second upper limit detection plate 5, and the lower limit detection plate includes a first lower limit detection plate and a second lower limit detection plate.

[0091] The first upper limit detection plate 4 is used to detect the relationship between the length of the first weld leg and the upper limit value of the first reference interval, the second upper limit detection plate 5 is used to detect the relationship between the length of the second weld leg and the upper limit value of the second reference interval, the first lower limit detection plate is used to detect the relationship between the length of the first weld leg and the lower limit value of the first reference interval, and the second lower limit detection plate is used to detect the relationship between the length of the second weld leg and the lower limit value of the second reference interval.

[0092] In this embodiment, the steps of respectively determining the reference edge 3 on the upper limit detection plate and the lower limit detection plate and the relative position information of the first detection point 1 and the second detection point 2 according to the cross-sectional data include:

[0093] Determine the position of reference edge 3;

[0094] According to the upper limit value of the first reference interval, the virtual value of the second weld leg and the weld angle, the relative position information on the first upper limit detection plate 4 is determined, and the virtual value of the second weld leg is greater than the upper limit value of the second reference interval;

[0095] According to the upper limit value of the second reference interval, the virtual value of the first weld leg and the weld angle, the relative position information on the second upper limit detection plate 5 is determined, and the virtual value of the first weld leg is greater than the upper limit value of the second reference interval;

[0096] Determine the relative position information on the first lower limit detection plate according to the lower limit value of the first reference interval, the virtual value of the second weld leg and the weld angle;

[0097] The relative position information on the second lower limit detection plate is determined according to the lower limit value of the second reference interval, the virtual value of the first weld leg and the weld angle.

[0098] Taking the determination process of the relative position information of the first detection point 1 and the second detection point 2 on the first upper limit detection plate 4 and the determination process of the relative position information of the first detection point 1 and the second detection point 2 on the second upper limit detection plate 5 as examples, the specific confirmation process is as follows:

[0099] The first distance on the first upper limit detection plate 4 is determined based on the upper limit value of the first reference interval, the virtual value of the second weld leg and the weld angle, and the second distance is determined based on the virtual value of the second weld leg and the weld angle.

[0100] The weld angle is α, the upper limit value of the first reference interval is a, the upper limit value of the second reference interval is b, the virtual value of the second weld leg is c, and c is greater than b.

[0101] If the first base metal 6 and the second base metal 7 have no groove near the weld root, refer to Figure 1 The first distance is x=a+c×sin(α-90°), and the second distance is y=c×cos(α-90°).

[0102] If the first base material 6 and the second base material 7 have grooves near the weld root, such as a groove is provided on the first base material 6, the opening size of the groove along the length direction of the first weld leg is d, referring to Figure 3 The first distance is x=a+d+c×sin(α-90°), and the second distance is y=c×cos(α-90°).

[0103] The first distance on the second upper limit detection plate 5 is determined based on the virtual value of the first weld leg and the weld angle, and the second distance is determined based on the upper limit value of the second reference interval, the virtual value of the first weld leg and the weld angle.

[0104] The weld angle is α, the upper limit value of the first reference interval is a, the virtual value of the first weld leg is e, e is greater than a, and the upper limit value of the second reference interval is b.

[0105] If the first base metal 6 and the second base metal 7 have no groove near the weld root, refer to Figure 2 The first distance is x=e+b×sin(α-90°), and the second distance is y=b×cos(α-90°).

[0106] If the first base material 6 and the second base material 7 have grooves near the weld root, such as a groove is provided on the first base material 6, the opening size of the groove along the length direction of the first weld leg is d, referring to Figure 4 The first distance is x=e+d+b×sin(α-90°), and the second distance is y=b×cos(α-90°).

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A weld detection device, It is characterized in that It comprises an upper limit detection plate and a lower limit detection plate, each of the upper limit detection plate and the lower limit detection plate has a first detection point, a second detection point and at least one reference edge, the reference edge is suitable for fitting with a parent material corresponding to the weld to be tested, the first detection point is located at one end of the reference edge, the second detection point is located outside the reference edge, the second detection point is suitable for abutting against another parent material corresponding to the weld to be tested, and an avoidance gap for avoiding the weld to be tested is formed between the first detection point and the second detection point; The relative position of the first detection point and the second detection point on the upper limit detection plate is determined according to the upper limit value of the length reference interval of the weld leg to be measured and the weld angle, and the relative position of the first detection point and the second detection point on the lower limit detection plate is determined according to the lower limit value of the length reference interval of the weld leg to be measured and the weld angle.

2. The weld detection device according to claim 1, It is characterized in that The relative positions of the first detection point and the second detection point include a first distance and a second distance, the first distance being the distance between the first detection point and the second detection point along a direction parallel to the reference edge, and the second distance being the distance between the first detection point and the second detection point along a direction perpendicular to the reference edge; One of the first distance and the second distance of the upper limit detection plate is determined according to the upper limit value of the length reference interval of the weld leg to be measured, the virtual value of the other weld leg of the weld to be measured and the weld angle, and the other is determined according to the virtual value of the other weld leg and the weld angle, and the virtual value of the other weld leg is greater than the upper limit value of the length reference interval of the other weld leg; One of the first distance and the second distance of the lower limit detection plate is determined according to the lower limit value of the length reference interval of the weld leg to be measured, the virtual value of the other weld leg and the weld angle, and the other is determined according to the virtual value of the other weld leg and the weld angle.

3. The weld detection device according to claim 1, It is characterized in that The weld to be measured includes a first weld leg and a second weld leg, a length reference interval corresponding to the first weld leg is a first reference interval, and a length reference interval corresponding to the second weld leg is a second reference interval; When the first reference interval is consistent with the second reference interval and the two base materials corresponding to the weld to be measured are both planes, one upper limit detection plate and one lower limit detection plate are each provided; and / or, when the first reference interval is different from the second reference interval, two upper limit detection plates and two lower limit detection plates are each provided, the two upper limit detection plates respectively correspond to the upper limit value of the first reference interval and the upper limit value of the second reference interval, and the two lower limit detection plates respectively correspond to the lower limit value of the first reference interval and the lower limit value of the second reference interval.

4. The weld detection device according to claim 2 or 3, It is characterized in that The upper limit detection plate and the lower limit detection plate have two reference edges, which are suitable for respectively fitting with the two base materials corresponding to the weld to be tested, and the two reference edges are respectively located on the side of the first detection point and the second detection point away from the avoidance gap.

5. The weld detection device according to claim 4, It is characterized in that When the two parent materials corresponding to the weld to be measured are both planes, the two reference edges extend along a straight line, and the angle between the two reference edges is consistent with the weld angle.

6. The weld detection device according to claim 4, It is characterized in that When one of the two base materials corresponding to the weld to be measured is a plane and the other is a cylindrical surface, and the plane is parallel to the axis of the cylindrical surface, one of the reference edges extends along a straight line and the other reference edge extends along an arc line, and the diameter of the arc line is consistent with the diameter of the cylindrical surface.

7. The weld detection device according to claim 1, It is characterized in that The boundary of the avoidance gap is located on a side of the straight line where the first detection point and the second detection point are located close to the reference edge.

8. The weld detection device according to claim 7, It is characterized in that The boundary of the avoidance gap includes a first boundary line and a second boundary line, the first boundary line is perpendicular to the second boundary line, and the first boundary line is perpendicular to the reference edge.

9. A method for manufacturing a weld detection device, It is characterized in that Used to manufacture the weld detection device according to any one of claims 1 to 8, comprising: Determine cross-sectional data of the weld to be measured according to structural requirements of the weld to be measured, wherein the cross-sectional data includes a first reference interval corresponding to the first weld leg, a second reference interval corresponding to the second weld leg, and a weld angle; Determine, according to the cross-sectional data, the reference edges on the upper limit detection plate and the lower limit detection plate and the relative position information of the first detection point and the second detection point, respectively, wherein the relative position information includes the spacing between the first detection point and the second detection point along a direction parallel to the reference edge and the spacing between the first detection point and the second detection point along a direction perpendicular to the reference edge; The boundary line of the avoidance gap is determined according to the relative position information, and the avoidance gap is processed according to the boundary line of the avoidance gap.

10. The method for manufacturing the weld detection device according to claim 9, It is characterized in that When the first reference interval is different from the second reference interval, the upper limit detection plate includes a first upper limit detection plate and a second upper limit detection plate, the first upper limit detection plate is suitable for detecting the relationship between the length of the first welding leg and the upper limit value of the first reference interval, and the second upper limit detection plate is suitable for detecting the relationship between the length of the second welding leg and the upper limit value of the second reference interval, and the lower limit detection plate includes a first lower limit detection plate and a second lower limit detection plate, the first lower limit detection plate is suitable for detecting the relationship between the length of the first welding leg and the lower limit value of the first reference interval, and the second lower limit detection plate is suitable for detecting the relationship between the length of the second welding leg and the lower limit value of the second reference interval; The step of determining the reference edges on the upper limit detection plate and the lower limit detection plate and the relative position information of the first detection point and the second detection point respectively according to the cross-sectional data includes: Determine the location of the reference edge; Determining the relative position information on the first upper limit detection plate according to the upper limit value of the first reference interval, the virtual value of the second weld leg and the weld angle, wherein the virtual value of the second weld leg is greater than the upper limit value of the second reference interval; Determining the relative position information on the second upper limit detection plate according to the upper limit value of the second reference interval, the virtual value of the first weld leg and the weld angle, wherein the virtual value of the first weld leg is greater than the upper limit value of the second reference interval; Determining the relative position information on the first lower limit detection plate according to the lower limit value of the first reference interval, the virtual value of the second weld leg and the weld angle; The relative position information on the second lower limit detection plate is determined according to the lower limit value of the second reference interval, the virtual value of the first weld leg and the weld angle.

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