Bonding wire detection platform combining 2D and 3D visual detection

Abstract

The invention relates to the technical field of bonding wire detection, in particular to a bonding wire detection platform combining 2D and 3D visual detection. The detection mechanism comprises assembling plates which are symmetrically and fixedly arranged on the machine base left and right, the front sides of the two assembling plates are each provided with a double-track sliding table module, sliding blocks of the double-track sliding table modules are each provided with a mounting plate, the mounting plates are each provided with a second linear driver, and moving parts of the second linear drivers are each provided with a moving plate; a 2D visual detector used for workpiece 2D detection is arranged on the left moving plate, and a 3D visual detector used for workpiece 3D detection is arranged on the right moving plate. Through combined arrangement of the 2D visual detector and the 3D visual detector, fine defects such as cracks and holes on the surface of a welded workpiece can be accurately recognized through 2D visual detection, and three-dimensional characteristics including height, width and depth of a weld joint can be deeply measured through 3D visual detection, so that the welding quality is comprehensively controlled, and the product quality is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding wire detection, and in particular to a welding wire detection platform combining 2D and 3D visual detection. Background Art

[0002] Wire bond inspection refers to the process of inspecting solder joints during electronic manufacturing to ensure that the quality of soldering meets the standards. This inspection is very important and directly related to the reliability and service life of the product.

[0003] After searching, according to the patent authorization announcement number CN213794814U, a multifunctional welding detection platform includes a base plate, a power detection component, a tip position confirmation component and a vehicle test piece fixture, the power detection component, the tip position confirmation component and the vehicle test piece fixture are all fixed to the upper end of the base plate; the vehicle test piece fixture is used to fix the imitation vehicle test piece, including a downward pressure component for downward pressure, a side clamp component for lateral pressure and a fixed clamp block, in the same vehicle test piece fixture, the downward pressure component and the side clamp component are arranged side by side and staggered with each other; the power detection component, the tip position confirmation component and the downward pressure component and the side clamp component are located on the opposite sides of the corresponding fixed clamp block; the device monitors the key parameters (such as power) of the welding equipment during the welding process through the cooperation of a specific structure, and indirectly guarantees the quality of the welded workpiece. However, this method cannot fully detect the details such as the appearance size, shape, angle and weld quality of the weld line part of the welded workpiece, resulting in the inability to immediately feedback to the operator the defects or quality problems that may occur after the welding is completed. Although existing technical means usually capture welding images and process them into positioning data by installing a visual camera near the welding head, thereby ensuring that the welding robot can monitor the weld in real time during operation to ensure the accuracy of welding, it is still difficult to fully evaluate the quality and appearance characteristics of the welded workpiece relying solely on image scanning methods. Summary of the invention

[0004] In order to overcome the shortcomings of the above-mentioned prior art in that welding workpiece detection is not comprehensive, the present invention provides a welding line detection platform combining 2D and 3D visual detection, including:

[0005] Machine base;

[0006] The casing is a hollow shell and is arranged on the top of the base;

[0007] The conveying mechanism has two groups, which are symmetrically arranged in the middle of the top of the machine base and are used for separate conveying of workpieces when they are inspected differently. The conveying mechanism includes a linear drive symmetrically fixedly installed on the machine base. A mounting frame is also symmetrically slidably arranged on the machine base. The bottom of the mounting frame is connected to the moving part of the linear drive 1 on the same side. The mounting frame operates in the front-to-back direction. A side plate 1 is arranged on the rear side of the top of the mounting frame. A conveying assembly is arranged on the side plate 1. A driving assembly is arranged on the front side of the top of the mounting frame. A side plate 2 is arranged on the moving part of the driving assembly. The side plate 2 operates in the front-to-back direction and is symmetrically arranged with the side plate 1 on the same side. A conveying assembly for conveying workpieces is also arranged on the side plate 2. The two conveying assemblies on the same side cooperate to convey the workpiece to be inspected. A pressing assembly for coordinating the position of the workpiece is also arranged on the mounting frame.

[0008] The detection mechanism is arranged on a machine base located behind the conveying mechanism. The detection mechanism includes assembly plates symmetrically fixed on the machine base. A double-track slide module is respectively arranged on the front side of the two assembly plates. A mounting plate is arranged on the slider of the double-track slide module. A linear drive 2 is arranged on the mounting plate. A moving plate is arranged on the moving part of the linear drive 2. A 2D visual detector for 2D detection of the workpiece is arranged on the left moving plate. A 3D visual detector for 3D detection of the workpiece is arranged on the right moving plate. A fill light cover is fixedly arranged on the lower side of the mounting plate. The two fill light covers are respectively located below the 2D visual detector and the 3D visual detector.

[0009] Preferably, the conveying assembly includes a servo motor installed on each side plate one and side plate two, and the output end of the servo motor is connected to a transmission wheel. Multiple transmission wheels are arranged on side plate one and side plate two for rotation at intervals, and a conveyor belt is arranged between the transmission wheels on the same side. The two conveyor belts on the same mounting platform cooperate to transport the workpiece in the left and right directions.

[0010] Preferably, the down-pressing assembly includes a cylinder 1 symmetrically arranged on the mounting frame, and the two cylinders 1 are respectively located between the side plate 1 and the side plate 2 on the same side. A push rod is arranged on the telescopic end of the cylinder 1, and a down-pressing plate is penetrated and slidably arranged on the push rod, and an elastic member is arranged between the down-pressing plate and the push rod on the same side.

[0011] Preferably, it also includes cylinder 2 and a baffle. Cylinder 2 with the telescopic end facing upward is installed on the right side of the top of the mounting platform. Baffles are provided on the telescopic end of cylinder 2. The baffles slide through the right end of the lower pressure plate on the same side to be used for blocking workpiece detection.

[0012] Preferably, a group of feeding mechanisms are respectively arranged on both sides of the machine base top, and the two feeding mechanisms are respectively used for feeding and discharging workpieces, and the feeding mechanism includes a double-layer conveyor symmetrically arranged on the machine base, and the two double-layer conveyors are respectively used for transporting the feeding and discharging of workpieces, and linear drives three are also respectively arranged on both sides of the machine base, and the two linear drives three are respectively located at the rear position of the double-layer conveyors on the same side, and a lifting assembly is arranged on the moving parts of the linear drive three, and the moving parts of the lifting assembly are connected with an L-shaped plate facing the double-layer conveyor on the same side, and the upper side of the L-shaped plate is installed with a cylinder three with the telescopic end facing downward, and a receiving plate is arranged on the telescopic end of the cylinder three, and the receiving plate cooperates with the bottom end of the L-shaped plate on the same side to receive workpieces on different layers of the corresponding double-layer conveyor, and a linear drive four is also arranged on the left lifting assembly, and the moving part of the linear drive four is connected with an extension plate for pushing materials, so that the workpiece enters the conveying mechanism.

[0013] Preferably, it also includes a cylinder four, an electric push rod one and a top block. A cylinder four with a telescopic end facing upward is arranged on the right mounting platform. An electric push rod one with a telescopic end facing right is connected to the telescopic end of the cylinder four. The telescopic end of the electric push rod one is connected to a top block for connecting and transporting workpieces after 3D inspection.

[0014] Preferably, it also includes an electric push rod 2, and a second electric push rod with a telescopic end facing upward is respectively installed on the right side of the top of the mounting platform to lift up unqualified workpieces after detection.

[0015] Preferably, it also includes a cylinder five, a support plate and a push block. A cylinder five with a telescopic end facing forward is installed on the mounting platform, and the cylinder five is located directly behind the side plate one on the same side. The telescopic ends of the cylinder five are connected with support plates. There is a gap between the support plate and the side plate one on the same side, and push blocks are arranged at intervals on the top of the support plate. Grooves consistent with the layout of the push blocks on the same side are arranged at intervals on the side plate one. The push block forms a sliding fit with the adjacent grooves for positioning the rear side of the workpiece.

[0016] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects:

[0017] 1. The present invention combines 2D visual detectors with 3D visual detectors. 2D visual detection can accurately identify subtle defects on the surface of welded workpieces, such as cracks and holes. 3D visual detection can also be used to deeply measure the three-dimensional features of welds, including height, width and depth, so as to comprehensively control the welding quality. In addition, the addition of a conveying mechanism provides accurate transportation and positioning for the workpiece, further ensuring the accuracy of the detection process, thereby significantly improving the quality of the final product.

[0018] 2. The present invention accurately positions various types of workpieces through the coordinated operation of the lower pressure plate and the second side plate, ensuring their stability during detection and transportation, and enhancing the accuracy and applicability of the platform.

[0019] 3. The automation design of the present invention realizes a highly efficient automated operation process through the coordinated work of the driving parts of the conveying mechanism and the detection mechanism, thereby improving the operational flexibility and overall efficiency of the platform.

[0020] 4. The present invention realizes the automatic transportation of workpieces through the setting of the feeding mechanism, and cooperates with the multi-position adjustment mechanism to improve the flexibility of position operation and ensure the precise docking with the double-layer conveyor, which not only optimizes the work efficiency but also further enhances the automation level of the platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a three-dimensional structural schematic diagram of each mechanism of the present invention.

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the components of the conveying mechanism and the detection mechanism of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of components such as cylinder 1, lower pressure plate and cylinder 2 of the present invention.

[0025] Figure 5 It is a three-dimensional structural cross-sectional view of the cylinder 1, the push rod, the lower pressure plate and the elastic member of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of some parts of the feeding mechanism of the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of components such as linear drive three, lifting assembly and linear drive four of the present invention.

[0028] Figure 8 It is a three-dimensional structural schematic diagram of components such as the L-shaped plate, cylinder three and receiving plate of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of part A of the present invention.

[0030] Fig.10 For the present invention Fig. 9 Schematic diagram of the three-dimensional structure after the A part is enlarged.

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the mounting platform and the electric push rod 2 of the present invention.

[0032] Fig.12 It is a three-dimensional structural schematic diagram of the cylinder 5, support plate, push block and other parts of the present invention.

[0033] The marks in the drawings provided by the present invention are: 1, base, 2, housing, 3, conveying mechanism, 31, linear drive 1, 32, mounting stand, 33, side plate 1, 331, groove, 34, servo motor, 341, conveyor belt, 35, drive assembly, 36, side plate 2, 37, cylinder 1, 371, push rod, 372, lower pressure plate, 373, elastic member, 38, cylinder 2, 381, baffle, 4, detection mechanism, 41, assembly plate, 42, double-track slide module, 43, mounting plate, 44. Linear drive 2, 441. Moving plate, 45. 2D visual detector, 46. Fill light cover, 47. 3D visual detector, 5. Feeding mechanism, 51. Double-layer conveyor, 52. Linear drive 3, 53. Lifting assembly, 54. L-shaped plate, 541. Cylinder 3, 542. Receiving plate, 55. Linear drive 4, 551. Extension plate, 6. Cylinder 4, 61. Electric push rod 1, 62. Top block, 7. Electric push rod 2, 8. Cylinder 5, 81. Support plate, 82. Push block. DETAILED DESCRIPTION

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Embodiment: A welding wire inspection platform combining 2D and 3D visual inspection, such as Figure 1-Figure 5 As shown, including:

[0037] The machine base 1 serves as the basic supporting structure of the entire platform;

[0038] The housing 2 is a hollow shell, which is arranged on the top of the base 1 and is used to cover and protect the internal components from the external environment;

[0039] There are two groups of conveying mechanisms 3, which are symmetrically arranged in the middle of the top of the machine base 1, so as to present left and right sections for separate conveying of workpieces when different inspections are performed. The conveying mechanism 3 includes a linear driver 31 symmetrically fixedly installed on the machine base 1. The machine base 1 is also symmetrically and slidably provided with a mounting frame 32. The bottom of the mounting frame 32 is connected to the moving part of the linear driver 31 on the same side. The connected mounting frame 32 is driven by the driver 31 to move in the front and back directions, so as to facilitate the position adjustment of the two side parts of the conveying mechanism 3, so as to ensure the accurate transportation and inspection position of the workpiece. A side plate 33 is arranged on the rear side of the top of the mounting frame 32, and a conveying assembly is arranged on the side plate 33. A driving assembly 35 is arranged on the front side of the top of the mounting frame 32. The driving assembly 35 includes a screw slide module, a pulley group and a guide screw, wherein the guide screw is rotatably connected to the same side. Between the side plate 1 33 and the left side of the mounting platform 32, the screw slide module is installed on the right side of the mounting platform 32 opposite to the guide screw, and the screw of the screw slide module is connected to the guide screw through a pulley group. As the screw of the screw slide module rotates, the guide screw is driven to rotate through the pulley group. A side plate 2 36 is arranged between the moving parts of the driving assembly 35, and is symmetrically arranged with the side plate 1 33 on the same side, so that the side plate 2 36 also moves in the front and rear directions, so that it can realize position adjustment together with the side plate 1 33, effectively perform lateral correction on the workpiece during transportation, thereby achieving correction of the position of the workpiece and ensuring the stability of workpiece transportation. A conveying assembly for conveying workpieces is also arranged on the side plate 2 36, and the two conveying assemblies on the same side cooperate to convey the workpiece to be inspected. A pressing assembly for coordinating the position of the workpiece is also arranged on the mounting platform 32.

[0040] The detection mechanism 4 is arranged on the machine base 1 located behind the conveying mechanism 3. The detection mechanism 4 includes an assembly plate 41 that is fixedly arranged on the machine base 1 symmetrically on the left and right sides. The two assembly plates 41 are respectively located directly behind the conveying mechanism 3 on the same side. A double-track slide module 42 is fixedly installed in front of the two assembly plates 41. A mounting plate 43 is arranged on the slider of the double-track slide module 42. The mounting plate 43 is driven by the double-track slide module 42 to move in the left and right directions. A linear drive 44 is fixedly arranged on the mounting plate 43. A moving plate 441 is arranged on the moving part of the linear drive 44. The moving plate 44 can be driven by the linear drive 44. 1 presents a moving operation in the up-down direction, thereby realizing the multi-directional position adjustment of the visual inspection component in the up-down and left-right directions. A 2D visual detector 45 for 2D inspection of the workpiece is arranged on the left moving plate 441, and a 3D visual detector 47 for 3D inspection of the workpiece is arranged on the right moving plate 441. A fill light cover 46 is fixedly arranged at the lower side of the mounting plate 43. The two fill light covers 46 are respectively located below the 2D visual detector 45 and the 3D visual detector 47. The fill light cover 46 can evenly illuminate the inspected workpiece, thereby reducing the influence of shadows and highlights, improving the contrast and clarity of the presented image, and improving the accuracy of workpiece inspection;

[0041] Specifically, the above-mentioned 2D visual detector 45 and 3D visual detector 47 are both standard parts, and both are integrated with 2D visual system and 3D visual system respectively. This composite detection mode of 2D first and 3D later not only expands the detection range of workpieces, but also improves the comprehensiveness and accuracy of detection, making the workpiece quality assessment more accurate. After the detection is completed, the system software will generate a detailed report, clearly showing the quality status of the workpiece, and effectively ensuring product quality control. Compared with the traditional single 2D or 3D detection method, this composite detection solution avoids the problem of insufficient 2D detection accuracy, and also overcomes the disadvantage of high cost of 3D detection.

[0042] like Figure 2-Figure 4 and Figure 9-12 As shown, the conveying assembly includes a servo motor 34 installed on each side plate 1 33 and side plate 2 36, and the output end of the servo motor 34 is connected to a transmission wheel. A plurality of transmission wheels are arranged on the side plate 1 33 and side plate 2 36 to rotate at intervals, and a conveyor belt 341 is arranged between the transmission wheels on the same side. The two conveyor belts 341 on the same mounting frame 32 cooperate to transport the workpiece in the left and right directions.

[0043] like Figure 4 and Figure 5As shown, the pressing assembly includes a cylinder 1 37 symmetrically arranged on the mounting frame 32, and the two cylinders 1 37 are respectively located between the side plate 1 33 and the side plate 2 36 on the same side. A push rod 371 is arranged on the telescopic end of the cylinder 1 37, and a lower pressing plate 372 is penetrated and slidably arranged on the push rod 371. An elastic member 373 is arranged between the lower pressing plate 372 and the push rod 371 on the same side. In this embodiment, the elastic member 373 is a buffer spring. During the transportation of the workpiece, it is necessary to select whether to equip the upper pressing plate according to the needs of the workpiece, wherein the upper pressing plate is based on The workpiece is manufactured according to its own shape and size. Due to the particularity of some workpieces, such as the chip used in the vehicle bracket, the chip is prone to bending during transportation. Therefore, the workpiece needs to be compacted and firmly positioned to protect the workpiece during transportation. The chip is compacted by the coordinated cooperation of the upper pressure plate and the lower pressure plate 372, and the adjustment operation of the side plate 2 36 is combined to form a full-range wrapping fixation, ensuring the stability and safety of the workpiece during transportation, thereby protecting the workpiece from damage and significantly improving transportation efficiency and quality.

[0044] like Figure 4 and Fig.11 As shown, it also includes a cylinder 2 38 and a baffle 381. The top right side of the mounting frame 32 is fixedly installed with a cylinder 2 38 with the telescopic end facing upward. A baffle 381 is provided on the telescopic end of the cylinder 2 38. The baffle 381 slides through the right end of the lower pressure plate 372 on the same side to be used for blocking workpiece detection.

[0045] like Figure 2 , Figure 6-Figure 9As shown, a set of feeding mechanisms 5 are respectively arranged on the left and right sides of the top of the machine base 1. The two sets of feeding mechanisms 5 are respectively used for feeding and discharging workpieces. The feeding mechanisms 5 include a double-layer conveyor 51 symmetrically arranged on the machine base 1. The double-layer conveyor 51 can ensure the transportation of multiple workpieces. The two double-layer conveyors 51 are respectively used for the feeding and discharging of workpieces. Linear drivers 3 52 are also respectively arranged on both sides of the machine base 1. The two linear drivers 3 52 are respectively located at the rear positions of the double-layer conveyors 51 on the same side. Lifting components 53 are respectively arranged on the moving parts of the linear drivers 3 52, so that the lifting components 53 and the components thereon are moved forward and backward. The moving parts of the lifting components 53 are connected with L-shaped plates 54 facing the double-layer conveyors 51 on the same side, so that L The L-shaped plate 54 is movable up and down, and the bottom end of the L-shaped plate 54 is a forward convex plate body to receive the workpiece being conveyed. A cylinder 3 541 with a telescopic end facing downward is installed on the upper side of the L-shaped plate 54, and a receiving plate 542 is arranged on the telescopic end of the cylinder 3 541. The receiving plate 542 can be adjusted up and down by the cylinder 3 541 so that the receiving plate 542 is aligned with the upper entrance of the double-layer conveyor 51, and the receiving plate 542 cooperates with the bottom end of the L-shaped plate 54 on the same side to realize the receiving of workpieces on different layers of the double-layer conveyor 51. A linear drive 4 55 is also arranged on the left lifting component 53, and an extension plate 551 for pushing materials is connected to the moving part of the linear drive 4 55 to allow the workpiece to enter the conveying mechanism 3.

[0046] like Fig. 9 and Fig.10 As shown, it also includes a cylinder four 6, an electric push rod 61 and a top block 62. A cylinder four 6 with a telescopic end facing upward is arranged on the right mounting platform 32, and an electric push rod 61 with a telescopic end facing right is connected to the telescopic end of the cylinder four 6. The telescopic end of the electric push rod 61 is connected to the top block 62, which is used for the connection and transportation of workpieces after 3D inspection.

[0047] like Fig.11 As shown, it also includes an electric push rod 2 7. On the right side of the top of the mounting platform 32, an electric push rod 2 7 with a telescopic end facing upward is respectively installed to lift up unqualified workpieces after detection so as to remove defective products.

[0048] like Fig.11 and Fig.12As shown, it also includes a cylinder 5 8, a support plate 81 and a push block 82. A cylinder 5 8 with a telescopic end facing forward is fixedly installed on the mounting frame 32, and the cylinder 5 8 is located directly behind the side plate 1 33 on the same side. The telescopic ends of the cylinder 5 8 are connected with the support plate 81. There is a gap between the support plate 81 and the side plate 1 33 on the same side, and push blocks 82 are arranged at intervals on the top of the support plate 81. Grooves 331 with the same layout as the push blocks 82 on the same side are spaced apart on the side plate 1 33. The push blocks 82 form a sliding fit with the adjacent grooves 331 for positioning the rear side of the workpiece. The cylinder 5 8 can drive the support plate 81 and the push block 82 to push forward together, thereby pushing the rear side of the workpiece to align with the side plate 2 36, and then adjusting the position of the side plate 2 36 so that the workpiece is firmly placed between the two, thereby achieving the effect of correcting the position of the workpiece.

[0049] When it is necessary to inspect the welded workpiece, the workpiece to be inspected is placed on the double-layer conveyor 51 on the left, and the workpieces on the two layers are transported from front to back. At the same time, the linear drive three 52 on the left is started, thereby driving the lifting assembly 53 and its upper components to move forward synchronously. When the distance between the L-shaped plate 54 and the receiving plate 542 and the double-layer conveyor 51 is appropriate, the lifting assembly 53 is started, thereby driving the L-shaped plate 54, cylinder three 541 and receiving plate 542 thereon to adjust the height position. When the L-shaped plate 54 is level with the lower layer of the double-layer conveyor 51, the cylinder three 541 is started to adjust the position of the receiving plate 542 and the upper layer of the double-layer conveyor 51, and then the workpieces of the upper and lower layers will enter the receiving plate 542 and L-shaped plate 542 at the corresponding positions along with the transportation. The lifting assembly 53 then adjusts the height between the receiving plate 542 and the conveyor belt 341, and at the same time, the linear drive 1 31 can be started to adjust the front and rear position of the conveying mechanism 3 as a whole to ensure that the inlet position of the conveying mechanism 3 can be aligned with the workpiece, so that the conveyor belt 341 can accurately receive the workpiece, and then the linear drive 4 55 is started to drive the extension plate 551 to translate to the right, and then the workpiece placed on the receiving plate 542 is pushed, so that the workpiece slides accurately onto the conveyor belt 341 on the side, and then the lifting assembly 53 drives the workpiece on the L-shaped plate 54 to be level with the conveyor belt 341, and repeats the above-mentioned pushing operation to use the extension plate 551 to push the workpiece, thereby realizing the workpiece pushing and feeding operations at the same time;

[0050] As the workpiece enters, the servo motor 34 operates synchronously, thereby driving the transmission wheel to rotate, so as to ensure the operation of the conveyor belt 341. In this process, due to the particularity of some workpieces, such as the chip used in the vehicle bracket, the chip itself is easy to bend due to the material of the chip itself, so it is necessary to position and clamp the workpiece to protect the workpiece during transportation. As the workpiece enters, the cylinders 5 8 and the drive assembly 35 on both sides are synchronously started and operated. The cylinder 5 8 drives the connected support plate 81 to move forward, and then synchronously drives the push block 82 to slide forward on the groove 331 of the side plate 1 33, and then contacts the rear side of the workpiece, thereby pushing the workpiece forward and sticking to the side wall of the side plate 2 36, and the drive assembly 35 synchronously drives the side plate 2 36 to move backward, so that the rear side of the workpiece can always keep in contact with the side plate 1 33, so that the position of the workpiece can be corrected. The upper pressing plate 372 is then moved upward to fit the workpiece, and the lower pressing plate 372 is then pressed downward to fit the workpiece, and the elastic member 373 is deformed accordingly, so that the lower pressing plate 372 can cooperate with the upper pressing plate to clamp the workpiece, so that the front and rear and the upper and lower positions of the workpiece are accurately and firmly fitted, thereby ensuring the safe transportation of the workpiece; on the contrary, if it is an ordinary workpiece in the transportation process, it can be directly positioned by the side plate 2 36 and the lower pressing plate 372;

[0051] As the workpiece moves, the workpiece is still placed on the conveying mechanism 3 on the left, so the double-track slide module 42 is synchronously opened to drive the mounting plate 43 and its upper components to move right synchronously, so that the right side of the 2D vision detector 45 can be aligned with the baffle 381 on the left conveying mechanism 3, and then the linear drive 2 44 is started to drive the moving plate 441 to move, so as to adjust the distance between the lens of the 2D vision detector 45 and the workpiece, and also adjust the distance between the 2D vision detector 45 and the fill light cover 46 below. In this process, the workpiece will also move with the movement. The workpiece is sent close to the baffle 381, and the cylinder 2 38 is started, which drives the baffle 381 to move up, thereby blocking the workpiece moving to the right. From then on, the 2D visual detector 45 performs 2D visual inspection on the parked workpiece to conduct centralized inspection and processing of the surface defects of the workpiece. After the inspection of the workpiece is completed, the inspected workpiece can be released. If the workpiece is unqualified, the workpiece can be directly lifted up and taken out by the electric push rod 2 7, and the qualified workpiece continues to move to the right and enters the conveying mechanism 3 on the right. Repeat the above operation to move the 3D visual detector 47 to the right position. Adjust to ensure that it is aligned with the side of the baffle 381 on the same side, and then intercept it through the baffle 381, and adjust the lens position of the 3D visual detector 47 in combination with the above operation, so that the workpiece can be visually inspected in 3D to perform a three-dimensional comprehensive defect detection on the workpiece. After the inspection, the workpiece is released, the unqualified workpiece is lifted up, and the qualified workpiece continues to move to the right. After the workpiece moves to the end of the right conveyor belt 341, the position of the L-shaped plate 54 and the receiving plate 542 on the right is adjusted. First, align the bottom end of the L-shaped plate 54 with the conveyor belt 341, Then the cylinder 4 6 is started to push the electric push rod 1 61 upward, thereby driving the top block 62 to be level with the workpiece, and then the electric push rod 1 61 drives the top block 62 to move right, thereby pushing the qualified workpiece, so that the workpiece can slide to the L-shaped plate 54, and then the receiving plate 542 is switched to be level with the workpiece position, so that the workpiece can be pushed onto the receiving plate 542, and then the position of the receiving plate 542 and the L-shaped plate 54 is raised and lowered to ensure that the workpiece can be placed on the double-layer conveyor 51 on the right, thereby realizing the workpiece unloading, and the overall process of workpiece welding line detection is completed.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A welding wire inspection platform combining 2D and 3D visual inspection, comprising: Machine base (1); The casing (2) is a hollow shell and is arranged on the top of the base (1); It is characterized by further comprising: The conveying mechanism (3) is two groups in number and is symmetrically arranged in the middle of the top of the machine base (1) for separately conveying the workpieces when they are inspected differently. The conveying mechanism (3) comprises a linear drive (31) symmetrically fixedly installed on the machine base (1). The machine base (1) is also symmetrically slidably provided with a mounting platform (32). The bottom of the mounting platform (32) is connected to the moving part of the linear drive (31) on the same side. The mounting platform (32) operates in a front-to-back direction. A side plate (33) is provided on the rear side of the top of the mounting platform (32). A conveying assembly is arranged on the side plate 1 (33), a driving assembly (35) is arranged on the front side of the top of the mounting platform (32), a side plate 2 (36) is arranged on the moving part of the driving assembly (35), the side plate 2 (36) operates in the front-back direction and is symmetrically arranged with the side plate 1 (33) on the same side, a conveying assembly for conveying a workpiece is also arranged on the side plate 2 (36), the two conveying assemblies on the same side cooperate to convey the workpiece to be inspected, and a pressing assembly for coordinating the position of the workpiece is also arranged on the mounting platform (32); The detection mechanism (4) is arranged on a machine base (1) located behind the conveying mechanism (3). The detection mechanism (4) includes an assembly plate (41) fixedly arranged on the machine base (1) in a left-right symmetrical manner. A double-track slide module (42) is respectively arranged on the front side of the two assembly plates (41). A mounting plate (43) is arranged on the slider of the double-track slide module (42). A linear drive 2 (44) is arranged on the mounting plate (43). A moving plate (441) is arranged on the moving part of the linear drive 2 (44). A 2D visual detector (45) for 2D detection of a workpiece is arranged on the left moving plate (441). A 3D visual detector (47) for 3D detection of a workpiece is arranged on the right moving plate (441). A fill light cover (46) is fixedly arranged at the lower side of the mounting plate (43). The two fill light covers (46) are respectively located below the 2D visual detector (45) and the 3D visual detector (47).

2. A welding wire inspection platform combining 2D and 3D visual inspection according to claim 1, characterized in that: The conveying assembly comprises a servo motor (34) mounted on each of the side panels 1 (33) and 2 (36), the output end of the servo motor (34) being connected to a transmission wheel, a plurality of transmission wheels being arranged on the side panels 1 (33) and 2 (36) for rotation at intervals, a conveying belt (341) being arranged between the transmission wheels on the same side, and two conveying belts (341) on the same mounting frame (32) cooperating to transport the workpiece in the left and right directions.

3. A welding wire inspection platform combining 2D and 3D visual inspection according to claim 2, characterized in that: The pressing assembly comprises a cylinder one (37) symmetrically arranged on a mounting frame (32), wherein the two cylinders one (37) are respectively located between a side plate one (33) and a side plate two (36) on the same side, a push rod (371) is arranged on the telescopic end of each cylinder one (37), a lower pressing plate (372) is penetrated and slidably arranged on the push rod (371), and an elastic member (373) is arranged between the lower pressing plate (372) and the push rod (371) on the same side.

4. The welding wire inspection platform combining 2D and 3D visual inspection according to claim 3, characterized in that: It also includes a second cylinder (38) and a baffle (381). The second cylinder (38) with its telescopic end facing upward is installed on the right side of the top of the mounting platform (32). A baffle (381) is arranged on the telescopic end of the second cylinder (38). The baffle (381) slides through the right end of the lower pressure plate (372) on the same side to be used for blocking work during workpiece detection.

5. The welding wire inspection platform combining 2D and 3D visual inspection according to claim 4, characterized in that: A set of feeding mechanisms (5) are respectively arranged on both sides of the top of the machine base (1), and the two sets of feeding mechanisms (5) are respectively used for feeding and discharging workpieces. The feeding mechanisms (5) include double-layer conveyors (51) symmetrically arranged on the machine base (1), and the two double-layer conveyors (51) are respectively used for transporting the feeding and discharging of workpieces. Linear drive three (52) are also respectively arranged on both sides of the machine base (1), and the two linear drive three (52) are respectively located at the rear position of the double-layer conveyors (51) on the same side. A lifting assembly (53) is arranged on the moving parts of the linear drive three (52), and the moving parts of the lifting assembly (53) The upper part is connected with an L-shaped plate (54) facing the double-layer conveyor (51) on the same side, and the upper side of the L-shaped plate (54) is installed with a cylinder three (541) with a telescopic end facing downward. The telescopic end of the cylinder three (541) is provided with a receiving plate (542), and the receiving plate (542) cooperates with the bottom end of the L-shaped plate (54) on the same side to receive workpieces on different layers of the double-layer conveyor (51). A linear drive four (55) is also provided on the left lifting component (53), and an extension plate (551) for pushing materials is connected to the moving part of the linear drive four (55) to allow the workpiece to enter the conveying mechanism (3).

6. A welding wire inspection platform combining 2D and 3D visual inspection according to claim 5, characterized in that: It also includes a cylinder four (6), an electric push rod one (61) and a top block (62). The cylinder four (6) with its telescopic end facing upward is arranged on the right side mounting platform (32). The telescopic end of the cylinder four (6) is connected to an electric push rod one (61) with its telescopic end facing right. The telescopic end of the electric push rod one (61) is connected to a top block (62) for connecting and transporting workpieces after 3D inspection.

7. The welding wire inspection platform combining 2D and 3D visual inspection according to claim 6, characterized in that: It also includes an electric push rod (7), and the right side of the top of the mounting platform (32) is respectively equipped with an electric push rod (7) with a telescopic end facing upward, so as to lift up unqualified workpieces after detection.

8. The welding wire inspection platform combining 2D and 3D visual inspection according to claim 7, characterized in that: The invention also comprises a cylinder (8), a support plate (81) and a push block (82). A cylinder (8) with a telescopic end facing forward is respectively installed on the mounting platform (32), and the cylinder (8) is respectively located directly behind the side plate (33) on the same side. The telescopic end of the cylinder (8) is connected to the support plate (81). There is a gap between the support plate (81) and the side plate (33) on the same side, and the push block (82) is arranged at intervals on the top of the support plate (81). Grooves (331) having the same layout as the push block (82) on the same side are arranged at intervals on the side plate (33). The push block (82) forms a sliding fit with the adjacent groove (331) to be used for positioning the rear side of the workpiece.

Images