WELDING RECORD CREATION DEVICE, WELDING RECORD CREATION SYSTEM, AND WELDING RECORD CREATION METHOD
Patent Information
- Application Number
- JP2021092840
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-06-02
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2041-06-02
Abstract
Description
[Technical field]
[0001] The present invention relates to a welding record generating device, a welding record generating system, and a welding record generating method. [Background technology]
[0002] For quality control of welding work, various proposals have been made regarding devices for recording the actions and welding conditions of welding work. For example, the device disclosed in Patent Document 1 is characterized by having a welding method designation unit for selecting a welding method including the welding groove shape from a welding method database, a welding record unit for recording measurement data during the welding time from the start of welding to the end of welding as welding record data in which the measurement data and the identification numbers for identifying each layer and each pass are associated with each other, and a lamination diagram generation unit for creating lamination diagram data in which the identification numbers for identifying each layer and each pass of the welding record data are written in accordance with the welding order for the welding groove shape, and for recording the lamination diagram data in association with the welding record data.
[0003] The device disclosed in Patent Document 2 is characterized by having a measurement unit that measures the welding motion and welding phenomenon when a welding operator performs welding work, a data analysis unit that extracts appropriate combinations of welding motion feature quantities and welding phenomenon feature quantities based on data acquired by the measurement unit, correlating them with time or coordinates, and a data accumulation unit that creates a database based on the extraction results of the data analysis unit. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] JP 2020-189304 A [Patent Document 2] International Publication No. 2021 / 009963 Summary of the Invention [Problem to be solved by the invention]
[0005] It is desirable to associate records of welding operations and welding phenomena in welding with the position where the welding was performed. In this way, for example, when a welding defect is found in a welded body, the records related to the defect occurrence position can be accessed quickly, and the cause can be efficiently identified.
[0006] The device disclosed in Patent Document 1 allows users to specify the number of layers and passes for multi-layer welding, and narrow down and access welding records for only the specified layer number and pass number from a large number of welding records. However, there is a problem in that it is not possible to trace welding records at any position within a pass.
[0007] The device disclosed in Patent Document 2 uses a motion capture system to record the characteristics of welding movements and welding phenomena in association with the position where the welding was performed. However, there is a problem in that the motion capture system cannot be applied to welding work in narrow spaces where sensor placement is limited.
[0008] In view of the above circumstances, the present invention aims to provide a welding record generation device, welding record generation system, and welding record generation method that can record welding operation movements and welding conditions in association with the position where the welding was performed, even when welding operation is performed in a narrow area where sensor placement is limited. [Means for solving the problem]
[0009] In order to achieve the above object, the welding record generating device of the present invention is , The measurement data of the welding work obtained by the welding work measuring device is read, Welding work The above Based on the characteristics of the measurement data, The above Generate a time identification number to specify the time of welding work to create a time identification number table a welding work evaluation unit for performing the welding work; Weld bead color information or height information acquired by a weld bead color information measuring device or a weld bead height information measuring device Based on The above Generates a position identification number to specify the position of the weld bead to create a location identification number table a weld bead evaluation unit for performing the weld bead evaluation; The time identification number table created by the welding work evaluation unit and the position identification number table created by the weld bead evaluation unit Associate Create a comprehensive table A recording unit for recording the It is characterized by do.
[0010] In addition, the present invention Welding record generation system teeth, In order to achieve the above object, a welding record generating device is provided, comprising: a welding machine having a welding torch for welding a welded body; a welding operation measuring device for measuring a welding operation; a welding bead evaluation device for evaluating a weld bead; and a welding record generating device connected to the welding machine, the welding operation measuring device, and the weld bead evaluation device, wherein the welding record generating device is the welding record generating device having the above configuration. .
[0011] In addition, the present invention How to create a welding record teeth, In order to achieve the above object, measurement data of welding work acquired by a welding work measuring device is read, Welding work The above Based on the characteristics of the measurement data, The above Generate a time identification number to specify the time of welding work to create a time identification number table a welding work evaluation step for evaluating the welding work; Weld bead color information or height information acquired by a weld bead color information measuring device or a weld bead height information measuring device Based on The above Generates a position identification number to specify the position of the weld bead to create a location identification number table a weld bead evaluation step for evaluating the weld bead; The time identification number table created in the welding work evaluation step and the position identification number table created in the weld bead evaluation step Associate Create a comprehensive table A recording step to be recorded; Characterized by: .
[0012] More specific configurations of the present invention are described in the claims. Effect of the Invention
[0013] According to the welding record generation device of the present invention, it is possible to provide a welding record generation device, welding record generation system, and welding record generation method that can record the welding operation movements and welding conditions in association with the position where the welding work was performed, even when welding work is performed in a narrow area where sensor placement is limited.
[0014] Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments. [Brief description of the drawings]
[0015] [Figure 1] FIG. 1 is a block diagram showing an example of a welding record generation system including a welding record generation device according to the present invention; [Diagram 2] A flowchart showing an example of a welding record generating method according to the first embodiment of the present invention. [Diagram 3] FIG. 1 is a diagram showing an example of a welding operation measured by a welding record generating device; [Figure 4(a)] Graph showing change in weaving direction over time [Figure 4(b)] Table showing the correspondence between time ID and welding work time in Fig. 4(a) [Figure 5(a)] An example of weld bead color information measurement data acquired by the weld bead color information measurement device 9 [Figure 5(b)] A table showing the correspondence between the position ID and the welding direction position in Fig. 5(a) [Figure 6(a)] An example of weld bead height information measurement data acquired by the weld bead color information measurement device 10 [Figure 6(b)] A table showing the correspondence between the position ID and the welding direction position in Fig. 6(a) [Figure 7] Diagram of how to generate a join table [Figure 8] A flowchart showing an example of a welding record generating method according to a second embodiment. [Figure 9] FIG. 10 is an explanatory diagram of a method for calculating the amount of heat input in the second embodiment. [Figure 10] An example of a display screen of a display unit of a welding record generating device according to a second embodiment DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] Hereinafter, the embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, the welding operator 12 moves the welding torch 6 to perform manual welding or semi-automatic welding, but the welding torch 6 may be moved by an automatic traveling device to perform automatic welding. EXAMPLES
[0017] Fig. 1 is a configuration diagram showing an example of a welding record production system including the welding record production device of the present invention. As shown in Fig. 1, welding record production system 100 includes welding record production device 1, a welder 5, a welding work measuring device 9, and a weld bead evaluation device 13. Weld bead evaluation device 13 has a weld bead color information measuring device 10 and a weld bead height information measuring device 11. The measurement results of welding work measuring device 9 are transmitted to welding work evaluation section 2 of welding record production device 1. In addition, the measurement results of weld bead evaluation device 13 are transmitted to weld bead evaluation section 3 of welding record production device 1.
[0018] The welding machine 5 is connected to a welding torch 6 for performing welding work and the welding record generating device 1.
[0019] A welding operator 12 slowly moves a welding torch 6 relative to a welded body 7, melting and mixing the welded body 7 and a filler metal (not shown), thereby forming a weld bead 8. The materials of the welded body 7 and the filler metal are, for example, carbon steel, high tensile steel, or stainless steel. In a welded body 7 having a V-groove as shown in Fig. 1, a wide weld bead is formed by a weaving motion in which the welding torch 6 is moved in a direction perpendicular to the welding direction (X direction in Fig. 1) (Y direction in Fig. 1).
[0020] Welding machine 5 supplies power to welding torch 6 to generate an arc. An arc is a discharge phenomenon that occurs when a high voltage is applied to a gas and sustained dielectric breakdown occurs, and is used for welding because it is accompanied by high heat. Welding machine 5 is provided with an operation panel, which allows the operator to set welding conditions such as the power (or welding current, welding voltage) to be supplied. Since the power supplied by welding machine 5 may vary depending on the relative position and angle between welding torch 6 and welded body 7, welding machine 5 may be provided with a sensor for measuring the welding current or welding voltage output by welding machine 5 in order to monitor the power supplied by welding machine 5.
[0021] The welding method of the welded body 7 is, for example, TIG (Tungsten Inert Gas) welding, MIG (Metal Inert Gas) welding, or MAG (Metal Active Gas) welding. TIG welding is a method in which an arc is generated between a tungsten electrode held by a welding torch and a base material, and the surroundings are surrounded by an inert gas such as argon to protect the base material from the effects of oxygen and nitrogen in the atmosphere. MIG welding is a method in which an arc is generated between a metal electrode and a base material, and the surroundings are surrounded by an inert gas such as argon to perform welding. MAG welding is a method in which an arc is generated between a metal electrode and a base material, and the surroundings are surrounded by an oxidizing gas to perform welding. In both welding methods, welding is performed while adding a filler metal, but while the welding operator supplies the filler metal in TIG welding, the supply of the filler metal is automatic in MIG welding and MAG welding, and therefore these are called semi-automatic welding.
[0022] The welding operation measuring device 9 is, for example, an optical camera such as a digital camera, and measures the actions of the welding operator 12 and the welding phenomenon. Since high-intensity light is emitted from the point where the arc is ignited during welding, it is necessary to select an optimal measuring device according to the object of measurement, such as the actions of the welding operation and the welding phenomenon. Considering the characteristics of the arc light, it is preferable to use a camera equipped with a sensor that can receive light including wavelengths from the visible light region to the infrared region. In addition, in order to prevent the occurrence of halation, in which the brightness in the image is saturated by the arc light, it is preferable to use a camera with a large dynamic range and exposure adjustment. Furthermore, it is preferable to perform illumination by an external light source or dimming by an optical filter as necessary.
[0023] In measuring the movement of the welding operator 12, it is desirable to set the field of view size so that the positions of the welding torch 6 and the filler metal, or the positions of the hands of the welding operator 12 holding them, are included within the field of view.
[0024] In measuring the welding phenomenon, it is desirable to set the field of view size so that the electrode tip of the welding torch 6 and the position where the filler metal is added are included in the field of view. In addition, when observing the behavior of the molten metal, it is desirable to set the frame rate according to the time scale of the melting phenomenon.
[0025] Welding operation measuring device 9 is installed using fixing means such as a tripod. Alternatively, welding operation measuring device 9 may be installed on welding protective gear worn on the head of welding operator 12. In that case, welding operations and welding phenomena can be measured even in welding operations in narrow spaces where sensor placement is limited.
[0026] Weld bead color information measuring device 10 is, for example, an optical camera such as a digital camera, and captures an image of the surface of weld bead 8 after welding work is completed. At this time, it is desirable that the camera position is calibrated with respect to weld bead 8 so that position information of weld bead 8 can be obtained. Alternatively, the image may be captured with a calibration scale placed around weld bead 8 so that calibration can be performed later. Alternatively, the camera may be a line scan camera or the like that is scanned by an automatic traveling device to associate the camera position with the image position.
[0027] The weld bead height information measuring device 11 is, for example, an optical measurement device such as a 3D scanner, a laser displacement meter, or a stereo camera. vessel and measures the height of the weld bead 8 after the welding operation is completed. At this time, it is desirable to calibrate the position of the optical measuring device with respect to the weld bead 8 so that position information of the weld bead 8 can be obtained. Alternatively, measurement may be performed with a calibration marker or the like placed within the measurement range so that calibration can be performed later. Alternatively, the optical measuring device may be scanned by an automatic traveling device to associate the position of the optical measuring device with the measured height value.
[0028] Weld bead color information measuring device 10 and weld bead height information measuring device 11 may perform measurements during welding operation, similar to welding operation measuring device 9. In that case, it is desirable to use measuring devices that can suppress the influence of arc light, as described for welding operation measuring device 9.
[0029] The welding record generating device 1 has a welding operation evaluation unit 2, a weld bead evaluation unit 3, and a recording unit 4.
[0030] The welding record generating device 1 is a general computer, and includes a central control device, input devices such as a mouse and a keyboard, a display device such as a display, a storage device such as a memory and a hard disk, and a communication device. The control device, which is made up of each processing unit, operates by executing a program loaded into the storage device.
[0031] The welding work evaluation unit 2 reads the measurement data of the welding work acquired by the welding work measurement device 9, generates a time identification number specifying the time of the welding work based on the characteristics of the measurement data of the welding work, and creates a time identification number table. The time identification number table will be described in detail later.
[0032] Weld bead evaluation unit 3 reads measurement data from weld bead color information measuring device 10 or weld bead height information measuring device 11, generates a position identification number specifying the position of weld bead 8 based on the characteristics of the measurement data of the weld bead, and creates a position identification number table. The position identification number table will be described in detail later.
[0033] The recording unit 4 creates a combined table that associates the time identification number table created by the welding work evaluation unit 2 with the position identification number table created by the weld bead evaluation unit 3, and records the combined table.
[0034] 2 is a flowchart showing an example of a welding record generating method according to the first embodiment of the present invention. This flow is executed by the welding record generating device 1.
[0035] In step S101 , welding operation evaluation unit 2 reads measurement data of the welding operation acquired by welding operation measuring device 9 .
[0036] In step S102, the welding work evaluation unit 2 generates a time identification number for the welding work based on the characteristics of the measurement data of the welding work acquired by the welding work measurement device 9. Here, a method for generating a time identification number for the welding work will be described with reference to Figs. 3 and 4. Fig. 3 is a diagram showing an example of welding work measured by the welding record generation device. Image 21 is an image taken by a fixed camera installed near the welding operator 12, and shows the welding operator 12, welding torch 6, welded body 7, and weld bead 8 during the welding work.
[0037] Image 21 is a photograph of welding operator 12 forming weld bead 8 while moving welding torch 6. Image 21 shows trajectory 23 of end point 22 of welding torch 6. Because welding operator 12 performs a weaving motion by swinging welding torch 6 in weaving direction 25 while moving welding torch 6 forward in welding direction 24, trajectory 23 describes a zigzag trajectory.
[0038] The trajectory 23 is extracted by image processing from a time series of images taken by a fixed camera installed near the welding operator 12. The image processing method may be, for example, optical flow that extracts movement from changes in density distribution on an image, a frame difference method that extracts movement by calculating the difference between images, or a feature point detection method that detects the movement of a feature point in an image.
[0039] Fig. 4(a) is a graph showing the change in the weaving direction over time, and Fig. 4(b) is a table showing the correspondence between time IDs and the welding operation times in Fig. 4(a). Fig. 4(a) shows a result 26 of the weaving direction position of end point 22 of welding torch 6 plotted against time. Time identification numbers (time IDs) 1, 2, and 3 are assigned to times t1, t2, and t3 at which the weaving direction position of end point 22 of welding torch 6 is at a maximum, and a time identification number table 27 is created showing the correspondence between times t1, t2, and t3 and time identification numbers 1, 2, and 3. The time identification numbers in this case correspond to the number of times that welding operator 12 has performed weaving.
[0040] The time identification number is assigned to a time at which the characteristics of the time change in the weaving direction position of the end point 22 of the welding torch 6 can be extracted. Therefore, a time identification number may be assigned to a time at which the weaving direction position is minimum or a time at which the weaving direction position is intermediate between maximum and minimum. Also, a time identification number may be assigned at a certain number of times, such as the 5th, 10th, or 15th time counting from the welding start time. Furthermore, a time identification number may be assigned to a time at which characteristics appear in the amplitude or period of the waveform of the time change in the weaving direction position of the end point 22 of the welding torch 6, such as a time at which the amplitude of the weaving direction position of the end point 22 of the welding torch 6 is large or small, or a time at which the period is large or small.
[0041] In Figures 3, 4(a) and 4(b), images 21 captured by a camera are used as measurement data of the welding work, but the measurement data of the welding work may be any data that measures the movements of the welding operator 12 or the welding phenomenon during the welding work, and may be, for example, acceleration measurement data obtained by an acceleration sensor attached to the welding protective gear or gloves worn by the welding operator 12, or temperature measurement data of the welded body 7 obtained by a radiation thermometer or the like.
[0042] In step S103 of FIG. 2, weld bead evaluation unit 3 reads measurement data from weld bead color information measurement unit 10 or weld bead height information measurement device 11.
[0043] In step S104, weld bead evaluation unit 3 generates a weld bead position interval identification number from the measurement data of weld bead color information measurement device 10 or weld bead height information measurement device 11. Here, the method of generating the weld bead position identification number is shown in FIG. (a), Fig. 5(b) and Figure 6 (a), Fig. 6(b) FIG. 5(a) is an example of weld bead color information measurement data acquired by weld bead color information measurement device 9, and FIG. 5(b) is a table in which position IDs correspond to the welding direction positions in FIG. 5(a). Image 31 is an image taken by a camera after welding work, and shows weld bead 8. The camera is calibrated for its position relative to welded body 7, so that the correspondence between the position in the image and the position of weld bead 8 is known. The horizontal direction of image 31 is welding direction 24, and the vertical direction is weaving direction 25.
[0044] When welding is performed while weaving the welding torch 6, (a) As shown in Fig. 1, a weld bead is formed in which scale-like weld marks overlap each other. Therefore, the boundary line of the scale-like weld mark of weld bead 8 is detected from image 31, and position identification numbers (position IDs) 1, 2, and 3 are assigned to welding direction positions x1, x2, and x3 at the points where center line 32 of weld bead 8 and the boundary line of the weld mark intersect, and a position identification number table 33 is created that shows the correspondence between the welding direction positions x1, x2, and x3 and the position identification numbers 1, 2, and 3. The position identification numbers in this case correspond to the number of times welding operator 12 has performed weaving.
[0045] Position identification numbers are assigned to positions where the characteristics of spatial changes in the weld bead 8 can be extracted. Therefore, position identification numbers may be assigned to the upper and lower ends of scale-like weld marks, or to intermediate positions between the boundaries of weld marks. Position identification numbers may also be assigned at regular intervals, such as the 5th, 10th, and 15th positions counting from the welding start position. Furthermore, position identification numbers may be assigned to positions where characteristics appear in the width or pitch of the weld bead 8, such as positions where the width of the weld bead 8 is large or small, or positions where the pitch is large or small.
[0046] In Fig. 5(a) and Fig. 5(b), an image 31 acquired by the weld bead color information measuring device 9 is used as the measurement data of the weld bead, but the measurement data of the weld bead may be an image acquired by the weld bead color information measuring device 9. Fig. 6(a) is an example of the measurement data of the height information of the weld bead acquired by the weld bead height information measuring device 10, and Fig. 6(b) is a table in which the position ID and the welding direction position of Fig. 6(a) correspond to each other. Graph 34 is a height profile at the center line of the weld bead 8 measured by the laser displacement meter after the welding operation. The position of the laser displacement meter relative to the welded body 7 is calibrated in advance, and the correspondence between the measurement position and the position of the weld bead 8 is known. Position identification numbers (position IDs) 1, 2, and 3 are assigned to the welding direction positions x1, x2, and x3 at which the height is minimum from the graph 34, and a position identification number table 33 is created that shows the correspondence between the welding direction positions x1, x2, and x3 and the position identification numbers 1, 2, and 3. The position identification number at this time corresponds to the number of times that the welding operator 12 has performed weaving.
[0047] FIG. 7 is an explanatory diagram of a method for generating a combined table. In step S105 of FIG. 2, the recording unit 4 creates and records a combined table 41 by combining the position identification number table 33 created in step S104 and the time identification number table 27 created in step S102, as shown in FIG. 7. Since the scale-like welding marks of the weld bead 8 are correlated with the position when the welding torch 6 is operated, the characteristics of the scale-like welding marks of the weld bead 8 can be associated with the characteristics of the time change in the position of the welding torch 6 extracted in step S102. For example, the time identification number and the position identification number can be associated with each other by referring to the number of times the weaving of the welding torch 6 has been performed and the number of scale-like welding marks of the weld bead 8. Furthermore, since the amplitude and period of the weaving of the welding torch 6 correspond to the width and pitch of the weld bead 8, the association can be made by referring to these characteristics.
[0048] The above-described embodiment provides the following advantages. Welding record generating device 1 records in recording unit 4 combination table 41 in which the time of welding work is associated with the position of weld bead 8. As a result, when it is desired to check the welding conditions at a certain position of weld bead 8, the time when welding work was performed at that position can be narrowed down by referring to combination table 41. The present invention makes it possible to identify and refer to an arbitrary position based on the state of the arbitrary position in one layer of weld bead, rather than the average state of one layer of weld bead.
[0049] For example, when a defect in the welded state is found in a welded body, the measurement data of the welding work associated with the position where the defect occurred can be quickly accessed, so that the cause can be efficiently investigated. Similarly, when it is desired to check the welding quality at a certain time in the welding work, the position of the weld bead 8 associated with that time can be narrowed down by referring to the connection table 41.
[0050] Furthermore, the present invention can record the characteristics of the welding operation and welding phenomenon in association with the position where the welding was performed using only measurement means that can be applied to narrow areas where sensor placement is limited, and therefore can also be applied to quality control of welding work in narrow areas. EXAMPLES
[0051] 8 is a flowchart showing an example of a welding record generating method according to the second embodiment. Steps S101 to S105 are the same as those in the first embodiment. In this embodiment, the heat input is calculated in step S201, and it is determined whether the heat input is within a predetermined range in step S202. Then, the calculation result of the heat input and the determination result are displayed in step S203.
[0052] The amount of heat input is an important parameter that affects the formation of the weld bead 8. A heat input outside the appropriate range can have adverse effects on the weld metal and the heat-affected zone. If the heat input is excessive, the strength of the weld metal decreases and it becomes more susceptible to cracking. Conversely, if the heat input is too small, rapid cooling can cause deterioration of the base metal structure. Therefore, it is important to adjust the welding operation and welding conditions so that the amount of heat input is within the appropriate range.
[0053] Fig. 9 is an explanatory diagram of a method for calculating the heat input amount in the second embodiment. The method for calculating the heat input amount in the second embodiment will be described with reference to Fig. 9. In step S201, the heat input amount is calculated using combination table 42 generated in step S105 and measurement results 52 of the welding current and welding voltage supplied by welding machine 5. The welding current and welding voltage are measured by, for example, a current sensor and a voltage sensor provided in welding machine 5.
[0054] The heat input q [J / m] is expressed as follows, where I [A] is the welding current, V [V] is the voltage, and v [m / s] is the welding speed: q=(V×I) / v…Equation (1) Using this formula, the position x corresponding to the position identification number N of the binding table 42 is expressed as N Heat input q N First, calculate the position x N The time t N and position x N-1 The time t N-1 is identified from the join table 42. Next, at time t N The average value of the welding current in N and the average value of the welding voltage V N is calculated from the measurement results 52 of the welding current and welding voltage. Here, the average is calculated over time t N-1 From N In addition, the time t N Welding speed at v N of V N =(x N- x N-1 ) / (t N -t N-1 ) …Equation (2) The above formula is used to calculate I N , V N , v N The heat input qN is calculated using equation (1).
[0055] Fig. 10 is an example of a display screen of the display unit of the welding record generating device of the second embodiment. A method of determining and displaying the heat input amount in the second embodiment will be described with reference to Fig. 10. In step S202, it is determined whether the heat input amount is within an appropriate range, and the heat input amount and the determination result are displayed on the display screen 61. Fig. 10 shows an example of the display screen 61. Welding direction x N Since the heat input at exceeds the upper limit of the appropriate range, it is determined to be outside the appropriate range, and a warning of "excessive heat input" is displayed. In addition, a heat map of the heat input is displayed superimposed on the color information or height information of the weld bead 8, making it possible to visually confirm the positions where the heat input is outside the appropriate range.
[0056] The above-described embodiment provides the following effects. The welding record generating device 1 records in the recording unit 4 a reference table 51 of heat input in which the heat input of the welding work is associated with the position of the weld bead 8. This allows the heat input at any position of the weld bead 8 to be confirmed by referring to the reference table 51. For example, when a defective weld is found in a welded body, the heat input at the defective position can be confirmed and fed back to the operation and welding conditions of the welding work. In addition, the heat input determining unit of the welding record generating device 1 determines whether the heat input is within an appropriate range or not, and displays the heat input and the determination result on the display unit, so that the welding operator can immediately check whether the welding work is good or bad. If there is a heat input outside the appropriate range, the presence or absence of an abnormality at that position can be confirmed, and appropriate measures such as disposal or repair can be taken.
[0057] As described above, according to the present invention, it has been shown that it is possible to provide a welding record generation device and a welding record generation method that can record the welding operations and welding conditions in association with the position where the welding was performed, even when welding is performed in a narrow area where sensor placement is limited.
[0058] The present invention is not limited to the above-described embodiment, but includes various modified examples. For example, the above-described embodiment has been described in detail to clearly explain the present invention, and is not necessarily limited to those including all of the configurations described. It is also possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is also possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.
[0059] In addition, the above-mentioned configurations, functions, processing units, processing means, etc. may be realized in part or in whole by hardware, for example, by designing them as integrated circuits. In addition, the above-mentioned configurations, functions, etc. may be realized in software by a processor interpreting and executing a program that realizes each function. Information such as the program, table, file, etc. that realizes each function can be stored in a memory, a recording device such as a hard disk or SSD (Solid State Drive), or a recording medium such as an IC (Integrated Circuit) card, SD card, or DVD (Digital Versatile Disc).
[0060] In addition, the control lines and information lines shown are those that are considered necessary for the explanation, and not all control lines and information lines in the product are necessarily shown. In reality, it can be considered that almost all components are connected to each other. [Explanation of symbols]
[0061] 1...welding record generating device, 2...welding work evaluation unit, 3...welding bead evaluation unit, 4...recording unit, 5...welding machine, 6...welding torch, 7...welding object, 8...welding bead, 9...welding work measuring device, 10...welding bead color information measuring device, 11...welding bead height information measuring device, 12...welding worker, 13...welding bead evaluation device, 21...welding work measurement data, 22...welding torch end point, 23...welding torch end point trajectory, 24...welding direction, 25...weaving direction, 26...welding torch weaving direction position measurement data, 27...time identification number table, 31...welding bead color information measurement data, 32...welding bead center line, 33...position identification number table, 34...welding bead height information measurement data, 41...joining table, 51...heat input reference table, 61...display screen.
Claims
1. A welding work evaluation unit that reads measurement data of a welding work obtained by a welding work measurement device, generates a time identification number specifying a time of the welding work based on characteristics of the measurement data of the welding work, and creates a time identification number table; a weld bead evaluation unit that generates a position identification number specifying a position of the weld bead based on color information or height information of the weld bead acquired by the weld bead color information measurement device or the weld bead height information measurement device, and creates a position identification number table; a recording unit that creates and records a comprehensive table that associates the time identification number table created by the welding work evaluation unit and the position identification number table created by the weld bead evaluation unit.
2. 2. The welding record generating device according to claim 1, wherein the recording unit associates the time identification number with the position identification number based on a number of weavings of a welding torch and a number of welding marks on the weld bead.
3. The welding record generating device according to claim 1 , wherein the welding work evaluation unit generates the time identification number based on a trajectory of a welding torch.
4. a heat input evaluation unit that determines measurement data of the welding operation corresponding to the position identification number of the weld bead based on the record in the record unit, and calculates a heat input corresponding to the position identification number of the weld bead from the measurement data of the welding operation; 4. The welding record generating device according to claim 1, further comprising: a heat input recording unit that records the heat input corresponding to the position identification number of the weld bead.
5. a heat input amount determination unit that determines whether the heat input amount calculated by the heat input amount evaluation unit is within an appropriate range; 5. The welding record generating device according to claim 4, further comprising: a display unit that displays the heat input amount and the determination result by the heat input amount determining unit in correspondence with the position of the weld bead.
6. a welding machine having a welding torch for welding a welded body; a welding work measuring device for measuring a welding work; a weld bead evaluation device for evaluating a weld bead; a welding record generating device connected to the welding machine, the welding operation measuring device, and the weld bead evaluation device, The welding record generating system, wherein the welding record generating device is the welding record generating device according to any one of claims 1 to 3.
7. A welding work evaluation step of reading measurement data of the welding work obtained by a welding work measuring device, generating a time identification number specifying the time of the welding work based on characteristics of the measurement data of the welding work, and creating a time identification number table; a weld bead evaluation step of generating a position identification number specifying a position of the weld bead based on color information or height information of the weld bead acquired by a weld bead color information measuring device or a weld bead height information measuring device, and creating a position identification number table; a recording step of creating and recording a comprehensive table that associates the time identification number table created in the welding work evaluation step and the position identification number table created in the weld bead evaluation step.