Welding straightening methods, welding straightening equipment and readable storage media

Abstract

This application provides a welding correction method, apparatus, and computer-readable storage medium. The welding correction method includes: determining original welding information; welding a first substrate and a second substrate according to a test path based on the original welding information to form a weld depth layer between the first substrate and the second substrate; determining connection information between the first substrate and the second substrate based on the weld depth layer; determining welding correction information based on the connection information and the original welding information; determining a test welding path through the original welding information; welding the first substrate and the second substrate according to the test welding path to form a weld depth layer; obtaining connection information between the first substrate and the second substrate based on the weld depth layer; obtaining welding correction information based on the connection information and the original welding information; and correcting the original welding path using the welding correction information to eliminate false welds between the first substrate and the second substrate, thereby enhancing the welding strength between the first substrate and the second substrate.

Description

Technical Field

[0001] This application relates to the field of welding technology, specifically to a welding correction method, welding correction equipment, and a readable storage medium. Background Technology

[0002] As shown in Figures 1(A) and 1(B), Figure 1(A) is a top view of the workpiece after welding in the prior art, and Figure 1(B) is a cross-sectional view of the workpiece cut based on a weld point in Figure 1(A). The method of fixing the first metal part 10a to the second metal part 20a to form a workpiece includes welding. Generally, the operation process of welding the first metal part 10a to the second metal plate 20a is as follows: the laser emits laser light into the first metal part 10a in a circular welding path, the laser melts the first metal part 10a and the second metal plate 20a to form a weld depth of 40a, and a weld point 30a is formed on the surface of the first metal part 10a to achieve the connection. Typically, since the welding path of each weld point is circular, the starting point and ending point of the welding coincide. However, during the welding process, the light output power required to form a weld depth of 40a between the first metal part 10a and the second metal plate 20a needs to reach the preset power. It takes a certain amount of time for the light output power to reach the preset power. At the welding starting point, some of the light output energy is absorbed by the first metal part 10a, which is in a cooling state. This often results in a weak weld area 50a in the initial stage of welding. A weak weld area 50a appears in the weld depth of 40a below multiple weld points 30a, resulting in a weak bond strength between the first metal part 10a and the second metal plate 20a, unstable tensile strength, and easy detachment during impact. Summary of the Invention

[0003] In view of the above problems, this application proposes a welding correction method, welding correction equipment, and a readable storage medium to solve the above problems.

[0004] The first aspect of this application provides a welding correction method, comprising:

[0005] Determine the original welding information;

[0006] Based on the original welding information, the first substrate and the second substrate are welded according to the test path to form a penetration layer between the first substrate and the second substrate.

[0007] Based on the melt depth, the connection information between the first substrate and the second substrate is determined;

[0008] Based on the connection information and the original welding information, welding correction information is determined.

[0009] Furthermore, the original welding information includes the original weld length, and the step of determining the original welding information includes:

[0010] Obtain the original welding path information;

[0011] Based on the original welding path information, the original welding length is determined.

[0012] Further, the original welding path information includes the original welding center angle and the radius or diameter of the original welding path. The step of determining the original welding length based on the original welding path information includes:

[0013] The original weld length is determined according to the formula C=n×π×r / 180°;

[0014] Where C is the original welding length, n is the original welding center angle, r is the radius of the original welding path, r=D / 2, and D is the diameter of the original welding path.

[0015] Furthermore, the connection information includes the length of the cold solder joint, and the step of determining the connection information between the first substrate and the second substrate based on the penetration depth includes:

[0016] Based on the depth of penetration, the location of the cold solder joint is determined;

[0017] The length of the cold solder joint is measured based on the location of the cold solder joint.

[0018] Furthermore, the welding correction information is a welding correction angle, and the step of determining the welding correction information based on the connection information and the original welding information includes:

[0019] The compensation angle is determined based on the length of the false weld and the original weld length.

[0020] The welding correction angle is determined based on the compensation angle and the original welding center angle.

[0021] Furthermore, the step of determining the compensation angle based on the length of the false weld and the original weld length includes:

[0022] The compensation angle is determined according to the formula θ=n×S / C;

[0023] Wherein, θ is the compensation angle, n is the original welding center angle, S is the length of the false weld, and C is the original welding length.

[0024] Further, the step of determining the welding correction angle based on the compensation angle and the original welding center angle includes:

[0025] The welding correction angle is determined according to the formula α=θ+n;

[0026] Wherein, α is the welding correction angle, and n is the original welding center angle.

[0027] Furthermore, the test path includes a straight path, the cold solder joint location includes the solder joint start point and the weld point between the first substrate and the second substrate, and the step of determining the cold solder joint location based on the weld depth includes:

[0028] Based on the straight path, the first substrate and the second substrate having the melt depth layer are cut to form a slice sample, and the slice sample has the cut surface of the melt depth layer;

[0029] Obtain a cross-sectional image of the melt depth;

[0030] Based on the cross-sectional image of the weld depth, the welding start point and the weld joint are selected.

[0031] Furthermore, the weld point includes at least one of the weld start point and the weld stability point between the first substrate and the second substrate; the incomplete weld length is the distance between the weld start point and the weld point.

[0032] Furthermore, the welding correction method also includes:

[0033] The first substrate and the second substrate having the melt depth layer are cured, ground and polished.

[0034] Furthermore, the welding correction method also includes:

[0035] The sliced ​​sample is subjected to at least one of the following treatments: etching, cleaning, and drying.

[0036] A second aspect of this application provides a welding correction device, including a processor, the processor being used for:

[0037] Determine the original welding information;

[0038] Based on the original welding information, the first substrate and the second substrate are welded according to the test path to form a penetration layer between the first substrate and the second substrate.

[0039] Based on the melt depth, the connection information between the first substrate and the second substrate is determined;

[0040] Based on the connection information and the original welding information, welding correction information is determined.

[0041] Furthermore, the original welding information includes the original weld length, and the processor is also used to:

[0042] Obtain the original welding path information;

[0043] Based on the original welding path information, the original welding length is determined.

[0044] Furthermore, the original welding path information includes the original welding center angle and the radius or diameter of the original welding path, and the processor is also used to:

[0045] The original weld length is determined according to the formula C=n×π×r / 180°;

[0046] Where C is the original welding length, n is the original welding center angle, r is the radius of the original welding path, r=D / 2, and D is the diameter of the original welding path.

[0047] A third aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the welding correction method as described in the above embodiments.

[0048] The welding correction method, equipment, and computer-readable storage medium provided in this application determine the test welding path through the original welding information, weld the first substrate and the second substrate according to the test welding path to form a weld depth layer, obtain the connection information between the first substrate and the second substrate based on the weld depth layer, obtain welding correction information based on the connection information and the original welding information, and use the welding correction information to correct the original welding path to eliminate the false welds between the first substrate and the second substrate, thereby enhancing the fusion strength between the first substrate and the second substrate and improving the fusion stability between the first substrate and the second substrate. Attached Figure Description

[0049] Figure 1(A) is a schematic diagram of the welding of a first substrate and a second substrate in an embodiment of the prior art.

[0050] Figure 1(B) is a cross-sectional view of the penetration depth of a single solder joint in Figure 1(A).

[0051] Figure 2 This is a schematic flowchart of a welding correction method according to an embodiment of this application.

[0052] Figure 3 This is a schematic diagram of the welding of the first substrate and the second substrate in one embodiment of this application.

[0053] Figure 4 for Figure 3 A cross-sectional view of the melt depth in one embodiment.

[0054] Figure 5 for Figure 2 A flowchart illustrating a method for obtaining connection information in one embodiment.

[0055] Figure 6 for Figure 2 A flowchart illustrating a method for determining welding correction information in one embodiment.

[0056] Figure 7 This is a schematic diagram of the welding path in one embodiment of this application.

[0057] Figure 8 for Figure 7 A cross-sectional view of the weld penetration depth in one embodiment.

[0058] Figure 9 This is a schematic diagram of a welding correction device in one embodiment of this application. Detailed Implementation

[0059] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0060] Numerous specific details are set forth in the following description to provide a thorough understanding of this application. The described embodiments are merely some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0061] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "multiple" means two or more, unless otherwise explicitly specified.

[0062] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] The following disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0064] The flowchart in this application may vary in order depending on different requirements, and some steps may be omitted. For ease of explanation, only the parts related to the embodiments of this application are shown.

[0065] Please see Figure 2 , Figure 3 and Figure 4 , Figure 2 This is a flowchart of a welding correction method according to one embodiment. Figure 3 This is a perspective view of the welding of a first substrate and a second substrate according to an embodiment of this application. Figure 4 for Figure 3 A cross-sectional view of the weld depth of a first substrate and a second substrate according to an embodiment. The welding correction method provided in this application is used to correct the welding path to improve the welding strength between substrates. This welding correction method is applied to a welding correction device, which can be a welding device 600. The welding correction method of this application includes the following steps.

[0066] Step S10: Determine the original welding information.

[0067] Specifically, the original welding information can be manually entered or pre-stored in memory. The original welding information may include the original welding path, the length of the original weld, the angle of the original weld, and other information.

[0068] Step S20: Based on the original welding information, weld the first substrate 100 and the second substrate 200 according to test path b, so that a weld depth layer is formed between the first substrate 100 and the second substrate 200.

[0069] Specifically, such as Figure 3 As shown, test path b is a preset welding path. In this embodiment, the preset welding path is a straight path. It can be understood that in other embodiments, the preset welding path can be a circular path or an arc path. The first substrate 100 and the second substrate 200 can both be circuit boards, metal plates, chips, studs with flanges, etc., but are not limited to these. It can be understood that the first substrate 100 and the second substrate 200 can be welded and fixed by the laser welding equipment 600. Specifically, the laser welding equipment 600 emits a laser beam towards the first substrate 100... Figure 3 The laser, indicated by the middle arrow, melts the first substrate 100 and the second substrate 200 to form a weld depth 800, thereby fusing the first substrate 100 and the second substrate 200 together. In other embodiments, the first substrate 100 and the second substrate 200 can also be welded using other high-temperature equipment, as long as a weld depth 800 can be formed between the first substrate 100 and the second substrate 200.

[0070] Since welding instability and incomplete welding are prone to occur in the initial stage of welding the first substrate 100 and the second substrate 200, it is now necessary to use the welding correction method of this application to correct the original welding information.

[0071] Step S30: Determine the connection information between the first substrate and the second substrate based on the melt depth.

[0072] Specifically, the connection information may include the length of the cold solder joint and the length of the weld. Please see [link to relevant documentation]. Figure 4 The weld depth layer 800 has a welding start point 410, a fusion point 420 between the first substrate 100 and the second substrate 200, and a welding end point 423. The welding start point 410 is the starting point where the laser reaches the first substrate 100. The fusion point 420 is the point where the weld depth layer 800 is simultaneously located on the first substrate 100 and the second substrate 200. The welding end point 423 is the end point after the laser completes the test path b. Further, the fusion point 420 can be a fusion start point 421 or a fusion stability point 422. The fusion start point 421 is the starting point where the weld depth layer 800 is simultaneously located on the first substrate 100 and the second substrate 200. The fusion stability point 422 is the starting point where the weld depth layer 800 is simultaneously located on the first substrate 100 and the second substrate 200 and achieves a stable connection between them. The weak weld length can be the distance between the welding start point 410 and the fusion point 420. The weld length can be the distance between the fusion point 420 and the welding end point 423.

[0073] Step S40: Determine welding correction information based on connection information and original welding information.

[0074] Specifically, this step calculates welding correction information using connection information and original welding information. Welding correction information can include angle information, length information, etc. Based on the welding correction information, the original weld is compensated and corrected to eliminate any false welds between the first substrate 100 and the second substrate 200.

[0075] The welding correction method of this embodiment uses the original welding information to weld the first substrate 100 and the second substrate 200 to form a weld depth layer 800. Based on the weld depth layer, the connection information between the first substrate 100 and the second substrate 200 is obtained. Based on the connection information and the original welding information, welding correction information is obtained. The original welding path is corrected using the welding correction information to eliminate the false welds between the first substrate 100 and the second substrate 200, thereby enhancing the fusion strength between the first substrate 100 and the second substrate 200 and improving the fusion stability between the first substrate 100 and the second substrate 200.

[0076] In one embodiment, multiple weld penetration depth connection information can be obtained by repeatedly executing steps S20, S30, and S40. An average value is then calculated based on this average value, and corresponding welding correction information is calculated accordingly. Using the average value improves the accuracy of the welding correction information.

[0077] In one embodiment of this application, please refer again. Figure 2 The original welding information includes the original weld length. Step S10, determining the original welding information, specifically includes:

[0078] Step S101: Obtain the original welding path information.

[0079] Specifically, the original welding information can be manually entered or pre-stored in memory. The original welding path can be a circular path, a straight path, or a curved path, as long as it can weld the first substrate 100 and the second substrate 200 together.

[0080] Step S102: Determine the original weld length based on the original weld path information.

[0081] Specifically, this step calculates the original weld length using the original weld path information, and the length of the test path weld can be determined based on the original weld length. This facilitates subsequent analysis of the weld depth obtained when welding the same type of substrate with the same welding equipment, thereby improving the reliability of the test weld path. For example, if the original weld path can be a circular or arc-shaped path, and the original weld path information includes the original weld center angle, the radius, or the diameter of the original weld path, then the original weld length can be calculated using the following formula:

[0082] C = n × π × r / 180°;

[0083] Where C is the original weld length, n is the original weld center angle, r is the radius of the original weld path, r=D / 2, and D is the diameter of the original weld path.

[0084] For example, the initial welding angle n can be 360 ​​degrees, meaning the initial welding path is a closed circle. Of course, in other embodiments, n can be less than 360 degrees, such as 355 degrees.

[0085] In one embodiment of this application, please refer to Figure 4 , Figure 5 The connection information includes the length of the cold solder joint. Step S30, based on the penetration depth, determines the connection information between the first substrate and the second substrate, including:

[0086] Step S301: Determine the location of the cold solder joint based on the penetration depth;

[0087] Specifically, the location of the cold weld can be determined as follows: First, the first substrate 100 and the second substrate 200 after welding are cut to form sample slices that expose the weld depth layer 800; then, the sample slices are attached to a pressure leveler using adhesive clay so that the surface of the weld depth layer 800 is horizontal; then, a surface image of the weld depth layer 800 is acquired using a camera or optical microscope and displayed on the screen of the welding equipment 600; finally, based on the surface image of the weld depth layer 800, the location of the cold weld is selected using a mouse. The location of the cold weld can be as follows: Figure 4 The location between the welding start point 410 and the fusion point 420 is shown. Optionally, the location of the cold weld can also be identified by an image recognition algorithm.

[0088] Step S302: Measure the length of the cold solder joint based on its location.

[0089] Specifically, please see again Figure 4 The length of the false weld can be the distance S1 between the welding start point 410 and the fusion start point 421. In another embodiment, the length of the false weld can also be the distance S2 between the welding start point 410 and the fusion stability point 422.

[0090] In one embodiment of this application, please refer to Figure 6 The welding correction information can be the welding correction angle. Step S40, based on the connection information and the original welding information, determines the welding correction information, specifically including:

[0091] Step S401: Determine the compensation angle based on the length of the false weld and the original weld length;

[0092] Specifically, the compensation angle can be determined according to the following formula: θ=n×S / C; where θ is the compensation angle, n is the original welding center angle, S is the length of the false weld, and C is the original welding length.

[0093] Step S402: Determine the welding correction angle based on the compensation angle and the original welding center angle.

[0094] Specifically, the welding correction angle can be calculated using the following formula: α = θ + n. Where α is the welding correction angle, and n is the original welding center angle.

[0095] The welding correction method of this application analyzes the weld depth layer 800 formed by welding along test path b based on the original welding path information to obtain the false weld length of test path b. Based on the false weld length of test path b, the false weld length of the original welding path is determined, and the false weld length is used to compensate for the original welding length. If the original welding path to the first substrate 100 and the second substrate 200 is a complete circle or a partial circle with false welds, the method calculates the required welding angle to prevent false welds by using the radius of the original welding, the original welding length, and the false weld length. In other words, it calculates the required compensation angle to prevent false welds. For example, if the original welding circle center angle is 350 degrees and the compensation angle is 15 degrees, the welding correction angle is 375 degrees. The corrected welding path with a welding circle center angle of 375 degrees is used to weld the first substrate 100 and the second substrate 200 to eliminate false weld positions and improve the connection strength between the first substrate 100 and the second substrate 200.

[0096] Please see Figure 7 This is a schematic diagram of the welding path in one embodiment of this application. Optionally, the original welding path is a closed circle. After obtaining the compensation angle θ through the above correction method, and determining the welding correction angle α based on the compensation angle θ, welding is performed on subsequent workpieces (e.g., the first substrate 100 and the second substrate 200) with the welding correction angle α. The angle at which the welding start point and the welding end point coincide is the compensation angle θ. The welding arc length S is eliminated by repeatedly welding the cold weld position. For example, if the central angle of the original welding path is 360 degrees, the length (circumference) C of the original welding path is approximately 62.8 cm, the cold weld length S obtained by the above correction method is approximately 0.17 cm, and the compensation angle θ = 10 degrees, then α = 360 degrees + 10 degrees = 370 degrees. The corrected welding length is approximately 62.8 cm + 0.17 cm = 62.97 cm. Subsequent workpieces are then welded with a central angle of 370 degrees and a welding length of 62.97 cm.

[0097] Please see Figure 8 , Figure 8 for Figure 7 A cross-sectional view of the weld penetration depth in one embodiment is a schematic diagram of the penetration depth layer after correction in this application. Due to repeated welding at the cold weld position, a correction area 900 is formed so that the first substrate 100 and the second substrate 200 no longer have cold welds.

[0098] In one implementation, for ease of understanding, test path b in the following scheme is illustrated as a straight path, with the location of the cold solder joint including the soldering start point and the fusion point between the first substrate 100 and the second substrate 200, etc. Please refer again. Figure 5 Step S301, based on the penetration depth, determines the location of the cold solder joint, including:

[0099] Step S3011: Based on a straight path, the first substrate and the second substrate with the melt depth layer are cut to form a slice sample, and the slice sample has a cut surface with the melt depth layer.

[0100] Specifically, the first substrate 100 and the second substrate 200 can be cut by a cutting machine to obtain a cut surface with a melt depth 800.

[0101] Step S3012: Obtain a cross-sectional image of the melt depth.

[0102] Specifically, a cross-sectional image of the melt depth 800 can be obtained using a camera or optical microscope and displayed on a screen.

[0103] Step S3013: Select the welding start point and fusion point based on the cross-sectional image of the weld depth.

[0104] Specifically, the cross-sectional image of the 800mm weld depth can be enlarged proportionally to select the weld start point and weld point. The weld start point and weld point can be selected manually with a mouse or automatically identified by a recognition algorithm. The area between the weld start point and the weld point is the location of the cold weld.

[0105] In one embodiment of this application, the welding correction method further includes: curing and polishing the first substrate 100 and the second substrate 200 having a weld depth layer 800.

[0106] Specifically, in step S20, based on the original welding information, the first substrate 100 and the second substrate 200 are welded along the test path to form a melt depth layer 800 between the first substrate 100 and the second substrate 200. After this process, the first substrate 100 and the second substrate 200 can be cured to prevent the melt depth layer 800 from spreading out when cutting to form a slice sample. Optionally, the curing process can be as follows: First, two cutting lines are marked near the straight path imprint formed by laser melting on the surface of the first substrate 100, wherein the cutting lines are parallel to the straight path imprint. The distance between each cutting line and the straight path imprint is 1cm-3cm; then, the welded first substrate 100 and second substrate 200 are cut along the cutting lines using a cutting machine to form a rough sample. Optionally, the length, width, and thickness of the rough sample can be 2.5cm×2.5cm×2cm; then, the rough sample is placed in a cold-mounting mold; double-sided tape is applied to the bottom of the cold-mounting mold to fix the rough sample; epoxy resin and curing agent are uniformly mixed in a ratio of 2.5:1 to form a mixture; then, the mixture is slowly poured into the cold-mounting mold containing the rough sample, and left to stand for 15-35 minutes, preferably 20 minutes, to allow the mixture to cure and the rough sample to cure; once the rough sample has cured, the cold-mounting mold is removed, thus completing the curing process of the first substrate 100 and the second substrate 200. Furthermore, the coarse sample needs to be cut to make it closer to the 800° melting depth section. This cutting method can be as follows: First, mark a cutting line near the straight path imprint on the coarse sample, with the cutting line parallel to the straight path imprint. The distance between the cutting line and the straight path imprint is 0.5cm-0.8cm, preferably 0.5cm. Then, use a flywheel cutter at 600 rpm to cut along the cutting line to obtain a slice model. Optionally, the dimensions of the slice model are 2.5cm × 2.5cm × 1.5cm. Then, grind and polish the slice model to form a slice sample exposing the 800° melting depth section. Optionally, sandpaper can be used for preliminary grinding of the slice model. Polishing includes rough polishing and fine polishing. The rough polishing method is as follows: First, use a grinding machine to perform the first polishing on the ground slice model. The grinding parameters of the grinding machine include: pressure P can be 60N-70N, and rotation speed is 300 r / min-400 r / min. Then, use 180X coarse sandpaper to perform the second polishing on the slice model after the first rough polishing. The cross-sectional grinding condition of the slice model is observed through a CCD camera to ensure that the rough polishing reaches the position of the straight path imprint to initially show the slice sample with a melting depth of 800 mm.After rough polishing, the sliced ​​samples that initially show a melting depth of 800 mm are further polished. The fine polishing method is as follows: First, use P1200 or P2400 sandpaper to polish the surface showing a melting depth of 800 mm for 15 rounds to ensure that the finely polished sliced ​​samples have no scratches on the melting depth of 800 mm surface; then use 1μm water-diluted polishing solution to polish the finely polished sliced ​​samples on a polishing cloth for 10 to 20 minutes to ensure that the melting depth of 800 mm surface of the sliced ​​samples has a mirror effect, which is convenient for subsequent camera or optical microscope to obtain images of the melting depth of 800 mm surface.

[0107] In one embodiment of this application, the welding correction method further includes the steps of: etching, cleaning, and drying the sliced ​​sample.

[0108] Optionally, the polished section samples can be further etched. The etching process can be as follows: immerse the section sample in a 5% FeCl3 solution to etch the 800mm depth section, allowing for clear images of the 800mm depth section to be obtained using a camera or optical microscope. After etching, rinse the section sample with water and wipe it with alcohol; finally, dry the section sample with a dryer before placing it under a camera or optical microscope to obtain images of the 800mm depth section.

[0109] Please see Figure 9 This application provides a welding correction device 700 according to an embodiment. The welding correction device 700 is used to determine welding correction information for the welding path of a workpiece, and can correct the welding path of the workpiece through the welding correction information to improve the welding strength of the workpiece. The welding correction device 700 includes a processor 10, a memory 20, an image acquisition device 30, and a laser 40. The image acquisition device 30 can be a camera or an optical microscope.

[0110] Processor 10 can be a central processing unit (CPU), or it can include other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor. Processor 10 is the control center of the welding correction equipment 700, connecting all parts of the welding correction equipment 700 through various interfaces and lines.

[0111] The memory 20 can be an internal storage unit of the welding calibration equipment 700, such as a hard disk or RAM of the welding calibration equipment 700. The memory 20 can also be an external storage device of the welding calibration equipment 700, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the welding calibration equipment 700. Furthermore, the memory 20 can include both internal and external storage units of the welding calibration equipment 700. The memory 20 is used to store computer programs and other programs and data required by the terminal device. The memory 20 can also be used to temporarily store data that has been output or will be output.

[0112] In one embodiment, the processor 10 is configured to: determine original welding information. Specifically, the original welding information may be manually input information or information pre-stored in the memory 20 for the processor 10 to read. The original welding information may include information such as the original welding path, the length of the original weld, and the angle of the original weld. The processor 10 is also configured to: based on the original welding information, control the laser 40 to weld the first substrate 100 and the second substrate 200 according to the test path b, so that a weld depth layer 800 is formed between the first substrate 100 and the second substrate 200. Specifically, as... Figure 3 As shown, test path b is a preset welding path. In this embodiment, the preset welding path is a straight path. It can be understood that in other embodiments, the preset welding path can be a circular path or an arc path. The first substrate 100 and the second substrate 200 can both be circuit boards, metal plates, chips, studs with flanges, etc., but are not limited to these. It can be understood that the processor 10 controls the laser 40 to weld and fix the first substrate 100 and the second substrate 200. Specifically, the processor 10 controls the laser 40 to emit a laser beam towards the first substrate 100. The laser will melt the first substrate 100 and the second substrate 200 to form a weld depth layer 800, thereby making the first substrate 100 and the second substrate 200 fused and fixed.

[0113] The processor 10 is also configured to: determine connection information between the first substrate 100 and the second substrate 200 based on the weld depth 800. Specifically, the connection information may include the length of the cold solder joint and the weld length. Please refer to [link to relevant documentation]. Figure 4The weld depth layer 800 has a welding start point 410, a fusion point 420 between the first substrate 100 and the second substrate 200, and a welding end point 423. The welding start point 410 is the starting point where the laser reaches the first substrate 100. The fusion point 420 is the point where the weld depth layer 800 is simultaneously located on the first substrate 100 and the second substrate 200. The welding end point 423 is the end point after the laser completes its test path. Further, the fusion point 420 can be a fusion start point 421 or a fusion stability point 422. The fusion start point 421 is the starting point where the weld depth layer 800 is simultaneously located on the first substrate 100 and the second substrate 200. The fusion stability point 422 is the starting point where the weld depth layer 800 is simultaneously located on the first substrate 100 and the second substrate 200 and achieves a stable connection between them. The poor weld length can be the distance between the welding start point 410 and the fusion point 420. The weld length can be the distance between the fusion point 420 and the welding end point 423. The processor 10 is also used to determine welding correction information based on the connection information and the original welding information. Specifically, the processor 10 calculates the welding correction information using the connection information and the original welding information, which may be angle information, length information, etc. The processor 10 compensates and corrects the original weld based on the welding correction information to eliminate the false welds between the first substrate 100 and the second substrate 200.

[0114] The welding correction device 700 of this embodiment controls the laser 40 to weld the first substrate 100 and the second substrate 200 to form a weld depth layer 800 based on the original welding information. It obtains the connection information between the first substrate 100 and the second substrate 200 based on the weld depth layer, obtains welding correction information based on the connection information and the original welding information, and uses the welding correction information to correct the original welding path of the laser 40 to eliminate the false welds between the first substrate 100 and the second substrate 200, thereby enhancing the fusion strength between the first substrate 100 and the second substrate 200 and improving the fusion stability between the first substrate 100 and the second substrate 200.

[0115] In one embodiment, the processor 10 is further configured to: acquire original welding path information. Specifically, the original welding information can be manually input or information pre-stored in the memory 20 for the processor 10 to read. The original welding path can be a circular path, a straight path, or a curved path, as long as it can weld the first substrate 100 and the second substrate 200 together.

[0116] The processor 10 is also used to: determine the original weld length based on the original weld path information. Specifically, the processor 10 calculates the original weld length using the original weld path information, and can determine the length of the test path weld of the laser 40 based on the original weld length, so as to facilitate subsequent analysis of the weld depth obtained by welding the same type of substrate with the same welding equipment, thereby improving the reliability of the test weld path. For example, if the original weld path can be a circular path or an arc path, and the original weld path information includes the original weld center angle, the radius or diameter of the original weld path, then the processor 10 can calculate the original weld length using the following formula:

[0117] C = n × π × r / 180°;

[0118] Where C is the original weld length, n is the original weld center angle, r is the radius of the original weld path, r=D / 2, and D is the diameter of the original weld path.

[0119] In one embodiment, the connection information includes the length of the cold solder joint, based on the penetration depth, and the processor 10 is further configured to: determine the location of the cold solder joint based on the penetration depth. Optionally, the location of the cold solder joint can also be identified by an image recognition algorithm.

[0120] Processor 10 is also used to: measure the length of the cold solder joint based on its location. For details, please refer again... Figure 4 The length of the false weld can be the distance S1 between the welding start point 410 and the fusion start point 421. In another embodiment, the length of the false weld can also be the distance S2 between the welding start point 410 and the fusion stability point 422.

[0121] In one embodiment, the welding correction information is a welding correction angle. The processor 10 is further used to: determine a compensation angle based on the length of the false weld and the original weld length. Specifically, the processor 10 can determine the compensation angle according to the following formula: θ = n × S / C; where θ is the compensation angle, n is the original weld center angle, S is the length of the false weld, and C is the original weld length. The processor 10 is further used to: determine a welding correction angle based on the compensation angle and the original weld center angle. Specifically, the processor 10 can calculate the welding correction angle according to the following formula: α = θ + n; where α is the welding correction angle and n is the original weld center angle.

[0122] The processor 10 of this application can analyze the penetration depth 800 to obtain the length of the false weld in the test path b, determine the length of the false weld in the original welding path based on the length of the false weld in the test path b, and use the length of the false weld to compensate for the length of the original welding. If the original welding path to the first substrate 100 and the second substrate 200 is a complete circle or a partial circle with a false weld, the processor 10 calculates how much the welding angle needs to be increased to avoid a false weld by using the radius of the original welding, the original welding length, and the length of the false weld. That is, how much the compensation angle needs to be increased to avoid a false weld. For example, if the center angle of the original welding circle is 350 degrees and the compensation angle is 15 degrees, then the welding correction angle is 375 degrees. The corrected welding path welding circle angle is 375 degrees to weld the first substrate 100 and the second substrate 200 to eliminate the false weld position and improve the connection strength between the first substrate 100 and the second substrate 200.

[0123] In one embodiment, the welding correction device 700 further includes a cutting machine. The test path b includes a straight path, and the cold weld location includes the welding start point and the fusion point between the first substrate and the second substrate. The processor 10 is further configured to: control the cutting machine to cut the first substrate and the second substrate with the weld depth layer based on the straight path to form a slice sample. The slice sample has a cross-section with the weld depth layer. Specifically, the processor 10 cuts the first substrate 100 and the second substrate 200 with the cutting machine to obtain a cross-section with the weld depth layer 800. The processor 10 is also configured to: control the image acquisition device 30 to acquire a cross-sectional image of the weld depth layer. Specifically, the processor 10 can control the image acquisition device 30 to acquire the cross-sectional image of the weld depth layer 800 and control the display screen to display it. The processor 10 is also configured to: select the welding start point and the fusion point based on the cross-sectional image of the weld depth layer. Specifically, the processor 10 can magnify the cross-sectional image of the weld depth layer 800 proportionally so that the welding start point and the fusion point can be selected by image algorithm recognition or manually by mouse.

[0124] This application also proposes a computer-readable storage medium storing a computer program thereon, which can be executed by a processor 10 to implement the welding correction method as described in any of the above embodiments.

[0125] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or computer devices recited in the computer device claims may also be implemented by the same unit or computer device through software or hardware. The terms "first," "second," etc., are used to indicate names and do not indicate any particular order.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A welding correction method, comprising: determining original welding information; welding a first base material and a second base material along a test path based on the original welding information to form a penetration layer between the first base material and the second base material; determining connection information between the first base material and the second base material based on the penetration layer, the connection information comprising a virtual welding length, the virtual welding length being a distance between a welding start point and a fusion point, the welding start point being a point at which a laser reaches the first base material, the fusion point being a point at which the penetration layer is present in both the first base material and the second base material; determining welding correction information based on the connection information and the original welding information; wherein the original welding information comprises an original welding length, and the step of determining the original welding information comprises: obtaining original welding path information, wherein the original welding path information comprises an original welding center angle; determining the original welding length based on the original welding path information; wherein the welding correction information is a welding correction angle, and the step of determining the welding correction information based on the connection information and the original welding information comprises: determining a compensation angle based on the virtual welding length and the original welding length; determining the welding correction angle based on the compensation angle and the original welding center angle.

2. The welding calibration method of claim 1, wherein, The original welding path information comprises a radius or a diameter of an original welding path, and the step of determining the original welding length based on the original welding path information comprises: determining the original welding length according to a formula C=n×π×r / 180°, wherein C is the original welding length, n is the original welding center angle, and r is the radius of the original welding path, r=D / 2, and D is the diameter of the original welding path. The step of determining the connection information between the first base material and the second base material based on the penetration layer comprises:

3. The welding calibration method of claim 2, wherein, determining a virtual welding position based on the penetration layer; measuring the virtual welding length based on the virtual welding position. The step of determining the compensation angle based on the virtual welding length and the original welding length comprises:

4. The welding calibration method of claim 1, wherein, determining the compensation angle according to a formula θ=n×S / C, wherein θ is the compensation angle, n is the original welding center angle, and S is the virtual welding length, and C is the original welding length. The step of determining the welding correction angle based on the compensation angle and the original welding center angle comprises: determining the welding correction angle according to a formula α=θ+n, wherein α is the welding correction angle, and n is the original welding center angle.

5. The welding calibration method of claim 4, wherein, The test path comprises a straight line path, the virtual welding position comprises a welding start point and a fusion point between the first base material and the second base material, and the step of determining the virtual welding position based on the penetration layer comprises: cutting the first base material and the second base material on which the penetration layer is formed to form a section sample based on the straight line path, the section sample having a section surface of the penetration layer; obtaining a section image of the penetration layer; 6. The welding calibration method of claim 3, wherein, selecting the welding start point and the fusion point based on the section image of the penetration layer. ​ ​ ​ 7. The welding calibration method of claim 6, wherein, The fusion point includes at least one of a fusion starting point and a fusion stable point between the first base material and the second base material.

8. The welding correction method of claim 1, further comprising: solidifying, grinding and polishing the first base material and the second base material formed with the fusion depth layer.

9. The welding correction method of claim 6, further comprising: at least one of etching, cleaning and drying the section sample.

10. A welding correction device, comprising a processor configured to: determine original welding information; weld a first base material and a second base material according to a test path based on the original welding information, so that a fusion depth layer is formed between the first base material and the second base material; determine connection information between the first base material and the second base material based on the fusion depth layer; the connection information includes a virtual welding length, the virtual welding length being a distance between a welding starting point and a fusion point, the welding starting point being a starting point at which a laser reaches the first base material, and the fusion point being a point at which the fusion depth layer is simultaneously present in the first base material and the second base material; determine welding correction information based on the connection information and the original welding information; wherein the original welding information includes an original welding length; the step of determining the original welding information includes: obtaining original welding path information, wherein the original welding path information includes an original welding center angle; determining the original welding length based on the original welding path information; wherein the welding correction information is a welding correction angle; the step of determining the welding correction information based on the connection information and the original welding information includes: determining a compensation angle based on the virtual welding length and the original welding length; determining the welding correction angle based on the compensation angle and the original welding center angle.

11. The welding calibration apparatus of claim 10, wherein, The original welding path information includes an original welding center angle, a radius or a diameter of an original welding path, and the processor is further configured to: determine the original welding length according to the formula C = n x π x r / 180°; wherein C is the original welding length, n is the original welding center angle, and r is the radius of the original welding path, r = D / 2, and D is the diameter of the original welding path.

12. A computer readable storage medium, wherein, The computer readable storage medium stores a computer program, and the computer program is executed by the processor to implement the welding correction method according to any one of claims 1 to 9.

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