An assembly method for judging component installation routes based on image recognition

Abstract

The present invention provides an assembly method for judging the installation route of components based on image recognition, which is used for judging the order of components during installation. The components include an upper plate, a PCB board and a lower plate, and a frame. The frame is provided with an identification mechanism, and the identification mechanism is used for the installation order and installation position of the components. A carrier is provided directly below the identification mechanism, and an assembly groove is provided on the carrier, and the assembly groove is used for assembling the components. A component comparison library is preset in the identification mechanism, and the component comparison library includes a component installation surface, a component installation route and a component installation position. Then, when an operator manually places a component on the carrier, the identification mechanism can be relied on to judge the component installation surface, the component installation route and the component installation position, and the component is fastened according to the predetermined route.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment assembly, and in particular to an assembly method for judging a component installation route based on image recognition. Background Art

[0002] With the continuous advancement of technology, solid-state drives play an increasingly critical role in modern computer systems. SSDs are usually composed of three parts: an upper board, a PCB board, and a lower board. When assembling a solid-state drive, if the installation order is wrong, the components may not be properly docked, affecting the performance and stability of the solid-state drive, and may even cause damage. Therefore, following the correct installation order is the key to ensuring the quality and reliability of the solid-state drive. In order to speed up production efficiency, several solid-state drives are assembled on a workbench. During the assembly process, not only the assembly order of the solid-state drives must be guaranteed, but also the assembly order between several solid-state drives must be consistent. Therefore, it is necessary to use an identification component to judge the installation order and installation route of the solid-state drive, which can effectively avoid errors, thereby improving production efficiency and product quality. After the assembly of the components is completed, the components need to be tightened, that is, the screws are locked. To ensure that each screw is in the corresponding position, a screw locking order is formulated to avoid missing screws.

[0003] For example, a patent document with patent application number 202211387987.8 and announcement date 2024.12.03 discloses a method for producing a solid-state hard drive, which includes the following steps: a first step, making an upper cover, a lower cover, a bracket heat sink and a circuit board, a second step, setting the bracket heat sink cover on the lower cover, a third step, setting the circuit board cover on the inner support plate, a fourth step, setting the upper cover on the bracket heat sink to form a heat dissipation air duct between the bracket heat sink and the upper cover, a fifth step, sleeved a one-way film valve sheet on the connector so that the one-way film valve sheet cover is set on the top of the heat dissipation air duct, and a sixth step, detachably assembling the outer extension body on the top of the upper cover to complete the assembly of the solid-state hard drive.

[0004] In the above literature, the upper cover, the lower cover, the bracket heat sink and the circuit board are first made, and then the upper cover, the lower cover, the bracket heat sink and the circuit board are gradually assembled. If in the process of mass production, not only one solid-state hard drive may be assembled on a workbench, but four or more solid-state hard drives may be assembled on a workbench. Therefore, it means that the operator needs to handle multiple components such as the upper cover, the lower cover, the bracket heat sink and the circuit board at the same time, and ensure that the installation order and position of each solid-state hard drive are accurate. Relying solely on the operator without the assistance of external equipment may cause the component installation sequence to be wrong. The component installation sequence error may cause the entire solid-state hard drive to have fewer components or more components installed, which may affect the performance and stability of the solid-state hard drive and even cause the product to be unqualified. Summary of the invention

[0005] The present invention provides an assembly method for judging a component installation route based on image recognition, which can judge a component installation surface, a component installation route and a component installation position, and assemble and tighten the component according to a predetermined route.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: an assembly method for judging the assembly route of a component based on image recognition, which is used to assemble and fasten the component through an assembly device, wherein the component includes an upper plate, a PCB board and a lower plate, and the assembly device includes a rack, and the rack is provided with an identification mechanism, and the identification mechanism is used to identify the installation sequence and installation position of the component, and a carrier is provided directly below the identification mechanism, and the carrier is provided with two or more assembly slots, and the assembly slots are used to assemble the component, and the specific steps include: The S1 identification mechanism is preset with a component comparison library, which includes a picture of the correct installation surface of the component, a picture of the front installation of the fastener, and a preset component installation route; the preset component installation route includes a sequential route for installing more than two components on a carrier; S2: Place the component in the assembly slot, and the recognition mechanism determines the position of the component in combination with the correct installation surface image of the component in the component comparison library. If the position is correct, place the next component and determine the position of the component on the carrier. During the placement of the next component, the recognition mechanism determines the position of the next component in combination with the correct installation surface image of the component in the component comparison library. If the position is correct, determine the component installation route by combining the position of the next lower plate on the carrier and the position of the previous component on the carrier, and match the component installation route with the preset component installation route. If they match, proceed to step S3. S3: first install the lower plate on the carrier according to the preset component installation route according to step S2, then install the PCB board on the lower plate according to the preset component installation route, and finally install the upper plate on the PCB board according to the preset component installation route; after all components are placed, the assembly is completed; S4 moves the assembled components to the fastening process. The recognition mechanism identifies the position of the component fasteners on the carrier and compares them with the correct installation position of the fasteners in the component comparison library. The components on the carrier are fastened according to the component installation route.

[0007] The above setting first presets a component comparison library in the identification mechanism, and the component comparison library includes a picture of the correct installation surface of the component, a picture of the correct installation surface of the fastener, and the component installation position. Then, when the operator manually places the component on the carrier, he can rely on the identification mechanism to determine whether the component is in the correct position and the correct installation surface, thereby ensuring that the component on the solid-state hard drive is assembled from the front. At the same time, when the component is correctly installed, the assembly order of multiple components is also identified. The identification mechanism identifies the picture and the preset assembly route, which is simple to operate. It is also convenient for users to place more or less components due to misoperation and no installation order during the placement process. When the position is identified by the identification mechanism, the accuracy of the identification can be ensured, ensuring that the assembly order of several solid-state hard drives is consistent, thereby effectively avoiding the occurrence of errors. After the assembly is completed, the component is tightened. During the tightening process, the component installation route is also used to avoid the occurrence of missed screws.

[0008] Further, step S2 includes: S21 places a lower plate in the assembly groove, and the identification mechanism determines the position of the lower plate in combination with the correct installation surface image of the component in the component comparison library. If the position is correct, the next lower plate is placed and the position of the lower plate on the carrier is determined. If the position is incorrect, the position of the lower plate needs to be adjusted.

[0009] S22 During the placement of the next lower plate, the recognition mechanism determines the position of the next lower plate in combination with the image of the correct installation surface of the component in the component comparison library. If the position is correct, the position of the next lower plate on the carrier and the position of the previous lower plate on the carrier are used to determine the installation route of the lower plate, and determine whether the installation route of the lower plate matches the preset component installation route. If so, proceed to step S3.

[0010] The above arrangement ensures the reliability of installation by first determining that the front side of the lower plate is installed in the installation groove when placing the lower plate, and then determining whether the installation is performed according to the preset component installation route.

[0011] Further, step S3 includes: S31 after all the lower panels are placed, a PCB board is placed on the upper surface of the lower panel, and the identification mechanism determines the position of the PCB board in combination with the correct installation surface image of the component in the component comparison library, and determines whether the PCB board meets the preset route requirements. If the requirements are met, step S32 is entered.

[0012] S32 After all PCB boards are placed, an upper board is placed on the upper surface of the PCB board. The recognition mechanism determines the position of the upper board in combination with the component comparison library, and determines whether the PCB board meets the preset route requirements. If so, the process proceeds to step S33; S33 After all upper panels are correctly placed, the assembly of the components is completed.

[0013] The above settings ensure the reliability of installation by installing the lower board first, then installing the PCB board and finally installing the upper board, and detecting whether the PCB board and the upper board are installed in the front when installing them, and installing them according to the preset component installation route.

[0014] Furthermore, four assembly slots are provided on the carrier, in which components can be placed, and the component installation route is preset to be in a clockwise manner within the plane where the carrier is located.

[0015] With the above arrangement, before assembling the components, the components are installed in the assembly slots according to the preset component installation routes, which facilitates quality control and inspection, and each step of the operation can be monitored and recorded.

[0016] Furthermore, in step S21, the lower plate is placed in the assembly slot, and the recognition mechanism captures the carrier image to ensure that the placed component is the lower plate, and compares the installation surface image of the lower plate with the correct installation surface image of the preset component to determine whether the lower plate is installed in the assembly slot from the front.

[0017] With the above settings, when assembling the lower plate, if in the component comparison library, the position of the first lower plate is the upper left corner, then the first lower plate can only be installed in the upper left corner and can only be a lower plate, and then the second lower plate is installed. If the position of the second lower plate is the upper right corner, then the second lower plate can only be installed in the upper right corner, and the third and fourth lower plates are similarly installed, thereby avoiding the possibility of incorrect placement of other components, and the identification component can identify the installation surface of the lower plate during installation to ensure the reliability of the installation.

[0018] Furthermore, in step S31, a PCB board is placed in the assembly slot, and the recognition mechanism captures an image of the carrier to ensure that the placed component is a PCB board, and compares the installation surface image of the PCB board with the correct installation surface image of the component. If they match, it is determined that the PCB board is installed on the lower plate from the front.

[0019] With the above arrangement, before assembling the PCB board, the identification mechanism will first detect the upper and lower plates of the carrier to ensure that each assembly slot on the carrier is placed with a lower plate, and then assemble the PCB board. If the position of the first PCB board is set at the upper left corner, during the installation process, this PCB board must and can only be placed at the upper left corner, ensuring that only the PCB board will be placed in this specific area, thereby avoiding the possibility of placing other components incorrectly. In addition, the identification mechanism can accurately identify the installation surface of the PCB board, which further ensures the reliability and accuracy of the installation process.

[0020] Furthermore, in step S32, an upper plate is placed in the assembly slot, and an identification mechanism captures an image of the carrier to ensure that the component placed therein is an upper plate, and an installation picture of the mounting surface of the upper plate is compared with an image of the correct mounting surface of the component. If they match, it is determined that the upper plate is front-mounted on the PCB board.

[0021] With the above arrangement, before assembling the upper panel, the recognition mechanism will first detect the PCB board on the carrier to ensure that a PCB board is placed in each assembly slot on the carrier, and then assemble the upper panel. If the position of the first upper panel is set at the upper left corner, during the installation process, this upper panel must and can only be placed at the upper left corner, ensuring that only the upper panel will be placed in this specific area, thereby avoiding the possibility of incorrectly placing other components. In addition, the recognition mechanism can accurately identify the installation surface of the upper panel, which further ensures the reliability and accuracy of the installation process.

[0022] Furthermore, the assembly equipment includes a fastening assembly machine, the identification mechanism includes a third detection module and a third identification module, the fastening assembly machine includes a third frame, a third workbench is arranged on the third frame, a three-dimensional moving module is arranged on the third workbench, an assembly device is arranged on the three-dimensional moving module, a third detection module is arranged on one side of the assembly device, a third upper conveying device and a feeding mechanism are arranged on the third workbench, the third upper conveying device is provided with a third upper conveying mechanism, a third locking jacking mechanism, a third identification module, a third limiting mechanism and a pressing plate mechanism, the third upper conveying The mechanism is used to transport the carrier, the third identification module is used to identify the carrier information, the third locking and lifting mechanism can lift the carrier to the corresponding position of the pressure plate mechanism, and the PCB assembly is placed on the carrier accordingly. The feeding mechanism is used to provide fasteners. The assembly device can move to the feeding mechanism to take the fasteners through the three-dimensional moving module, and the position of screwing the fasteners on the assembly can be determined through the third detection module. There are more than two PCB assemblies placed on the carrier, and the assembly device screws the fasteners on the PCB assembly according to the preset assembly installation route. The third detection module detects the position of the fasteners on the PCB assembly.

[0023] The above setting detects the assembly effect of the assembly device by setting a third detection module, and locks the carrier through the third locking and lifting mechanism at the same time, and then identifies the carrier model through the third identification module to determine the installation path of the preset components on the carrier and the corresponding correct installation pictures of the preset components and other information, and then lifts up through the third locking and lifting mechanism and combines with the pressure plate mechanism to tighten the components to prevent warping during the tightening process.

[0024] Furthermore, in step S4, the carrier is lifted to the corresponding position of the pressure plate mechanism by the third locking lifting mechanism, and the position of the screwed fasteners is identified by the third detection module and the fasteners are assembled according to the preset component installation route. After the installation, the fastener installation status is detected to determine whether it meets the requirements.

[0025] The above arrangement is to tighten the assembly by lifting it up through the third locking lifting mechanism and combining it with the pressure plate mechanism to prevent the assembly from tilting during the tightening process.

[0026] Further, S4 includes: when installing fasteners on a component on an assembly slot, a diagonal form is adopted, that is, firstly fastening the upper left corner mounting hole, and then fastening the lower right corner mounting hole.

[0027] With the above settings, the diagonal locking screws can ensure that the pressure between components is more evenly distributed. When the screws are tightened in a diagonal order, stress concentration caused by local over-tightening can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the work flow chart of the present invention.

[0029] Figure 2 It is the front view of the frame in the present invention.

[0030] Figure 3 This is another viewing angle of the frame in the present invention.

[0031] Figure 4 It is a top view of the carrier in the present invention.

[0032] Figure 5 It is a schematic diagram of the component structure in the present invention.

[0033] Figure 6 It is a schematic diagram of the upper surface structure of the component in the present invention.

[0034] Figure 7 It is a front view of the fastening assembly machine in the present invention.

[0035] Figure 8 It is a front view of the third workbench in the fastening assembly machine of the present invention.

[0036] Fig. 9 for Figure 8 Enlarged view of point A in the middle.

[0037] Fig.10 for Figure 8 Enlarged view of point B in the middle.

[0038] Fig.11 It is a top view of the third workbench in the fastening assembly machine of the present invention.

[0039] Explanation of the accompanying drawings: 2-frame; 21-carrier; 211-assembly slot; 22-identification module; 221-shooting component; 222-display screen; 23-component; 231-lower plate; 232-PCB board; 233-upper plate; 234-mounting hole; 3-third frame; 31-third workbench; 311-three-dimensional moving module; 3111-assembly device; 312-pressing plate mechanism; 3121-connecting frame; 3122-pressing plate; 313-third detection module; 3131-camera; 314-third upper conveying mechanism. DETAILED DESCRIPTION

[0040] Embodiment 1.

[0041] like Figure 1-11 As shown, an assembly method for judging the component installation route based on image recognition is used to assemble and fasten the component through an assembly device. The component 23 includes an upper plate 233, a PCB board 232 and a lower plate 231. The assembly device includes a rack 2. The rack 2 is provided with an identification mechanism 22. The identification mechanism 22 is used for the installation sequence and installation position of the component 23. A carrier 21 is provided directly below the identification mechanism 22. The carrier 21 is provided with more than two assembly slots 211. The assembly slots 211 are used to assemble the component 23. In this embodiment, four assembly slots 211 are provided on the carrier 21. The specific steps include: The S1 identification mechanism 22 is preset with a component 23 comparison library, which includes a picture of the correct installation surface of the component, a picture of the front installation of the fastener, and a preset component installation route; the preset component installation route includes a sequential route for installing more than two components on the carrier. In this embodiment, the preset component installation route is in a clockwise direction according to the plane where the carrier is located; S2: Place component 23 in assembly slot 211, and the recognition mechanism determines the position of component 23 in combination with the component correct installation surface image in the component comparison library. If the position is correct, place the next component 23 and determine the position of component 23 on the carrier. In the process of placing the next component 23, the recognition mechanism 22 determines the position of the next component 23 in combination with the component correct installation surface image in the component comparison library. If the position is correct, determine the component installation route by combining the position of the next component 23 on the carrier with the position of the previous component 23 on the carrier, and match the component installation route with the preset component installation route. If they match, proceed to step S3. S3: first install the lower plate on the carrier 21 according to the preset component installation route according to step S2, then install the PCB board on the lower plate according to the preset component installation route, and finally install the upper plate on the PCB board according to the preset component installation route; after all components are placed, the assembly is completed; S4 moves the assembled component 23 to the fastening process, the identification mechanism 22 identifies the position of the fasteners of the component 23 on the carrier 21, and compares it with the correct installation position of the fasteners in the comparison library of the component 23, and performs the fastening process on the component 23 on the carrier according to the preset component installation route.

[0042] Step S2 includes: S21 places a lower plate 231 in the assembly groove, and the identification mechanism 22 combines the component 23 to compare the correct installation surface image of the component in the library to determine the position of the lower plate 231. If the position is correct, place the next lower plate 231 and determine the position of the lower plate on the carrier. If the position is incorrect, it is necessary to adjust the position of the lower plate 231 until the predetermined route is met.

[0043] S22 During the placement of the next lower plate 231, the identification mechanism 22 determines the position of the next lower plate in combination with the image of the correct installation surface of the component in the component comparison library. If the position is correct, the position of the next lower plate 231 on the carrier and the position of the previous lower plate 231 on the carrier 21 are used to determine the installation route of the lower plate, and determine whether the installation route of the lower plate matches the preset component installation route. If so, proceed to step S3.

[0044] Step S3 includes: S31 After all the lower plates 231 are placed, the PCB board 232 is placed on the upper surface of the lower plate 231, and the identification mechanism 22 combines the component 23 with the component correct installation surface picture in the comparison library to determine the position of the PCB board 232, and determine whether the PCB board meets the preset route requirements. If the requirements are met, enter step S32.

[0045] S32 After all PCB boards 232 are placed, an upper board 233 is placed on the upper surface of the PCB board 232. The identification mechanism 22 determines the position of the upper board 233 by combining with the component 23 comparison library. The identification mechanism 22 compares the photograph of the upper board 233 with the correct installation picture of the preset component to determine whether the upper board 233 is placed from the front and whether the upper board is placed. At the same time, the position of the installation slot on the carrier is determined by obtaining the picture of the installation slot of the upper board on the carrier, and the position is combined with the position of the previous upper board placed in the installation slot on the carrier to form an installation route. For example, if there are four installation slots on the carrier, the clockwise direction of the plane where the carrier is located is the preset component installation route. If the previous upper board is the upper left corner of the carrier, and then the current upper board is the upper right corner, the installation route is formed in the clockwise direction, which is the same setting as the preset component installation route. If the installation slot of the current upper board is the upper left corner, it is determined that the starting point of the previous upper board installation route is not the upper left corner, which is a matching setting; the determination of the installation route of the PCB board and the lower board and the comparison process with the preset installation route are the same as the determination of the upper board installation route and the comparison process with the preset installation route.

[0046] S33 After all upper panels are correctly placed, the assembly of the components is completed.

[0047] First, a component 23 comparison library is preset in the identification mechanism 22, and the component 23 comparison library includes the component 23 installation surface, the component 23 installation route and the component 23 installation position. Then, when the operator manually places the component 23 on the carrier 21, the identification mechanism 22 can be relied on to determine whether the component 23 is in the correct position and on the correct installation surface, thereby ensuring the assembly sequence of the solid-state hard disk and ensuring that the assembly sequence of several solid-state hard disks is consistent, thereby effectively avoiding the occurrence of errors. After the assembly is completed, the component is tightened. During the tightening process, the component installation route is also used to avoid the occurrence of missed screws.

[0048] like Figure 2-3 As shown, the recognition module includes a shooting component 23221 and a display, and the shooting component 23221 and the display are connected. The shooting component 23221 mainly shoots an image of the vehicle 21, compares the shot image with the comparison library of component 23, and outputs the comparison result to the display screen 222.

[0049] The shooting component 23221 is located directly above the vehicle 21, and the display is located on a side of the vehicle 21. The shooting component 23221 is located directly above the vehicle 21, which can better capture the vehicle 21, and the display is located on a side of the vehicle 21. When the shooting component 23221 outputs the comparison result to the display screen 222, personnel can better observe the comparison result.

[0050] like Figure 4-5 As shown, four assembly slots 211 are provided on the carrier 21, and the components 23 can be placed in the assembly slots 211. The preset component installation route is clockwise, that is, the first lower plate is first placed in the upper left assembly slot 211, and then the second lower plate is placed in the upper right assembly slot 211, and then reaches the lower right assembly slot 211, and finally reaches the lower left assembly slot 211. The PCB board and the upper plate repeat the above operations. Before assembling the component 23, the component 23 follows a specific assembly route in the assembly slot 211. Following the specific assembly route is convenient for quality control and inspection, and each step of the operation can be monitored and recorded. Before assembling the component 23, the component 23 follows a specific assembly route in the assembly slot 211. Following the specific assembly route is convenient for quality control and inspection, and each step of the operation can be monitored and recorded.

[0051] In step S2, the lower plate 231 is placed in the assembly groove 211, and the identification mechanism 22 captures the image of the carrier 21 to ensure that the lower plate 231 is placed therein, and that the mounting surface and mounting position of the lower plate 231 are correct. When the lower plate 231 is assembled, if in the comparison library of the component 23, the first lower plate 231 is located at the upper left corner, then the first lower plate 231 can only be installed at the upper left corner, and can only be the lower plate 231. Then the second lower plate 231 is installed. If the second lower plate 231 is located at the upper right corner, then the second lower plate 231 can only be installed at the upper right corner, and the third and fourth lower plates 231 are installed in the same manner, thereby avoiding the possibility of incorrect placement of other components 23, and during installation, the identification component 23 can identify the mounting surface of the lower plate 231 to ensure the reliability of the installation.

[0052] In step S31, a PCB board 232 is placed in the assembly slot 211, and the identification mechanism 22 captures an image of the carrier 21 to ensure that the PCB board 232 is placed therein, and that the mounting surface and mounting position of the PCB board 232 are correct. Before assembling the PCB board 232, the identification mechanism 22 will first detect the upper and lower plates 231 of the carrier 21 to ensure that each assembly slot 211 on the carrier 21 is placed with a lower plate 231, and then assemble the PCB board 232. If the position of the first PCB board 232 is set at the upper left corner, during the installation process, this PCB board 232 must and can only be placed at the upper left corner, ensuring that only the PCB board 232 is placed in this specific area, thereby avoiding the possibility of incorrectly placing other components 23. In addition, the identification mechanism 22 can accurately identify the mounting surface of the PCB board 232, which further ensures the reliability and accuracy of the installation process.

[0053] In step S32, the upper plate 233 is placed in the assembly slot 211, and the identification mechanism 22 captures the image of the carrier 21 to ensure that the upper plate 233 is placed therein and that the mounting surface of the upper plate 233 is installed in the correct position. Before assembling the upper plate 233, the identification mechanism 22 will first detect the PCB board 232 on the carrier 21 to ensure that each assembly slot 211 on the carrier 21 is placed with a PCB board 232, and then assemble the upper plate 233. If the position of the first upper plate 233 is set at the upper left corner, during the installation process, this upper plate 233 must and can only be placed at the upper left corner, ensuring that only the upper plate 233 is placed in this specific area, thereby avoiding the possibility of incorrectly placing other components 23. In addition, the identification mechanism 22 can accurately identify the mounting surface of the upper plate 233, which further ensures the reliability and accuracy of the installation process.

[0054] like Figure 6-11As shown, the fastening assembly machine includes a third frame 3, the identification mechanism includes a third detection module 313 and a third identification module, a third workbench 31 is arranged on the third frame 3, a three-dimensional moving module 311 is arranged on the third workbench 31, an assembly device 3111 is arranged on the three-dimensional moving module 311, a third detection module 313 is arranged on one side of the assembly device 3111, a third upper conveying device and a feeding mechanism are arranged on the third workbench 31, the third upper conveying device is provided with a third upper conveying mechanism 314, a third locking jacking mechanism, a third identification module, a third limiting mechanism and a pressing plate mechanism 312, the third upper conveying mechanism 314 is used to convey the carrier, and the third identification module is used to identify the carrier. The information is provided by the third locking lifting mechanism, the carrier can be lifted to the corresponding position of the pressing plate mechanism 312, the carrier 21 is correspondingly placed with a PCB component, the feeding mechanism is used to provide fasteners, the assembly device 3111 can be moved to the feeding mechanism by the three-dimensional moving module 311 to take the fasteners, and the third detection module 313 can determine the position of the fasteners on the PCB component, and then the assembly device 3111 screws the fasteners on the component 23, and finally the third detection module 313 detects the position of the fasteners on the component 23, and defines the transportation direction of the component as the X-axis direction, the direction on the horizontal plane perpendicular to the X-axis direction as the Y-axis direction, and the direction perpendicular to the plane where the XY axes are located as the Z-axis direction, on the third workbench 3 1 is provided with a three-dimensional moving module 311, and the three-dimensional moving module 311 is provided with an assembly device 3111 and a third detection module 313. The assembly device 3111 and the third detection module 313 can be moved along the XYZ axis by the three-dimensional moving module 311. The third upper conveying mechanism 314 conveys the carrier to a predetermined position. During the conveying process, the third identification module obtains information on the carrier. A component to be screwed into a fastener is placed on the carrier. The third limiting mechanism limits the moving position of the carrier. After the carrier stops at a predetermined area, the third locking lifting mechanism lifts the carrier to the corresponding position of the pressing plate mechanism 312, so that the component 23 abuts against the pressing plate mechanism 312. The feeding mechanism provides fasteners such as screws. The third detection module 313 is used to detect the component 23. The measuring module includes a camera 3131, which first determines the screw locking position of the component, and moves the assembly device 3111 to the feeding mechanism to take the screws. The assembly device 3111 passes through the pressure plate mechanism 312 to screw the component, and adopts a diagonal screw locking method. If the component is provided with four screw locking positions, the upper left corner is screwed first, and then the lower right corner is screwed. After the four screws are locked, the camera 3131 detects the screws in the component, and determines and records good and defective products. In this embodiment, the assembly device 3111 is an electric screwdriver, and the three-dimensional moving module 311 is a mechanism that can move along the XYZ direction of the third workbench 31, which is mainly realized by a driving motor and a moving block, and the fastener is a screw.

[0055] like Fig. 9 and Fig.10As shown, the third upper conveying mechanism 314 is provided with two connecting plates, which are respectively a first connecting plate and a second connecting plate, and the pressing plate mechanism 312 includes two connecting frames 3121 and a pressing plate 3122, the connecting frames 3121 are respectively connected to the first connecting plate and the second connecting plate, and the pressing plate 3122 is fixedly arranged on the two connecting frames 3121, and two connecting plates are provided on the third upper conveying mechanism 314, and the connecting plates provide connecting positions for the connecting frames 3121, and the connecting frames 3121 are respectively connected to the first connecting plate and the second connecting plate, and the two connecting frames 3121 provide connecting positions for the pressing plates 3122.

[0056] In step S4, the component 23 is tightened, that is, the screws are locked on the component 23, and the preset component installation route is followed. For example, if the preset component installation route is clockwise, the component 23 in the upper left corner assembly slot 211 is tightened first, and then the component 23 in the upper right corner assembly slot 211 is tightened, and then the component 23 in the lower right corner assembly slot 211 is tightened, and finally the component 23 in the lower left corner assembly slot 211 is tightened. In the process of locking the screws on the component 23, according to the preset component installation route, it can be ensured that the components 23 are correctly tightened, and the same installation route is used during assembly and tightening, which not only avoids assembly errors but also avoids the situation of missing screws.

[0057] During the screw locking process, when the carrier with the components placed on it is transported to the third workbench 311 through the third upper conveying device, the third recognition module determines the model of the carrier and the corresponding mounting slot position on the carrier and the corresponding preset component installation route and the front installation picture of the fastener by recognizing the identification code at the bottom of the carrier, and then moves the assembly device 3111 to the starting point on the preset component installation route through the three-dimensional movement module 311, and then the third recognition module recognizes the picture after assembling a component 23 on the mounting slot, compares the installed picture with the front installation picture of the fastener to determine whether the installation is appropriate, and if qualified, proceeds to the next step. In an installation slot, the third recognition module identifies the fastener installation picture in the second installation slot and compares it with the corresponding fastener front installation picture to determine whether it is qualified. If it is qualified, the position of the second installation slot on the carrier is obtained through the third recognition module. The four corner positions of the second installation slot can be identified and then the position of the second installation slot can be mapped to the plane where the preset carrier is located. Then, an installation route is formed according to the position of the first installation slot on the carrier and the position of the second installation slot on the carrier. For example, if the installation route is clockwise, it is the same as the preset component installation route. It is determined that it meets the requirements and enters the assembly of the next installation slot. Otherwise, an error prompt is given.

[0058] Mounting holes 234 are arranged around the component 23. When the component 23 is tightened, a diagonal form is adopted, that is, the upper left corner mounting hole 234 is tightened first, and then the lower right corner mounting hole 234 is tightened.

[0059] The diagonal locking screws can ensure that the pressure between the components 23 is more evenly distributed. When the screws are tightened in a diagonal order, stress concentration caused by local over-tightening can be effectively avoided.

[0060] The working principle of the present invention is as follows: an identification mechanism 22 is provided on the frame 2, and a component comparison library is preset in the identification mechanism 22. The component comparison library includes a picture of the correct installation surface of the component, a preset component installation route and a picture of the correct installation of the fastener. When assembling the lower plate 231, if in the comparison library of the component 23, the position of the first lower plate 231 is the upper left corner, then the first lower plate 231 can only be installed in the upper left corner, and can only be the lower plate 231, and then the second lower plate 231 is installed. If the position of the second lower plate 231 is the upper right corner, then the second lower plate 231 can only be installed in the upper right corner, and the third and fourth lower plates 231 are similar. Before assembling the PCB board 232, the identification mechanism 22 will first compare the upper and lower parts of the carrier 21. The board 231 is inspected to ensure that each assembly slot 211 on the carrier 21 is placed with a lower board 231, and then the PCB board 232 is assembled. If the position of the first PCB board 232 is set at the upper left corner, during the installation process, this PCB board 232 must and can only be placed at the upper left corner; before assembling the upper board 233, the identification mechanism 22 will first inspect the PCB board 232 on the carrier 21 to ensure that each assembly slot 211 on the carrier 21 is placed with a PCB board 232, and then the upper board 233 is assembled. If the position of the first upper board 233 is set at the upper left corner, during the installation process, this upper board 233 must and can only be placed at the upper left corner; After the assembly is completed, the component 23 is tightened. During the tightening process, the installation route of the component 23 is also adopted to avoid the occurrence of screw leakage.

Claims

1. An assembly method for judging the assembly route of a component based on image recognition, used for assembling and fastening a component by an assembly device, the component comprising an upper plate, a PCB board and a lower plate, characterized in that: The assembly equipment includes a frame, on which an identification mechanism is provided, and the identification mechanism is used to identify the installation order and installation position of the components. A carrier is provided directly below the identification mechanism, and the carrier is provided with two or more assembly slots, and the assembly slots are used to assemble the components. The specific steps include: The S1 identification mechanism is preset with a component comparison library, which includes a picture of the correct installation surface of the component, a picture of the front installation of the fastener, and a preset component installation route; the preset component installation route includes a sequential route for installing more than two components on a carrier; S2: Place the component in the assembly slot, and the recognition mechanism determines the position of the component in combination with the correct installation surface image of the component in the component comparison library. If the position is correct, place the next component and determine the position of the component on the carrier. During the placement of the next component, the recognition mechanism determines the position of the next component in combination with the correct installation surface image of the component in the component comparison library. If the position is correct, determine the component installation route by combining the position of the next component on the carrier with the position of the previous component on the carrier, and match the component installation route with the preset component installation route. If they match, proceed to step S3. S3: first install the lower plate on the carrier according to the preset component installation route according to step S2, then install the PCB board on the lower plate according to the preset component installation route, and finally install the upper plate on the PCB board according to the preset component installation route; after all components are placed, the assembly is completed; S4 moves the assembled components to the fastening process. The recognition mechanism identifies the position of the component fasteners on the carrier and compares them with the correct installation position of the fasteners in the component comparison library. The components on the carrier are fastened according to the preset component installation route.

2. The assembly method for determining the component installation route based on image recognition according to claim 1, characterized in that: Step S2 includes: S21 placing a lower plate in the assembly slot, and the recognition mechanism judging the position of the lower plate in combination with the correct installation surface image of the component in the component comparison library, if the position is correct, placing the next lower plate and determining the position of the lower plate on the carrier, if the position is incorrect, adjusting the position of the lower plate until the predetermined route is met; S22 During the placement of the next lower plate, the recognition mechanism determines the position of the next lower plate in combination with the image of the correct installation surface of the component in the component comparison library. If the position is correct, the position of the next lower plate on the carrier and the position of the previous lower plate on the carrier are used to determine the installation route of the lower plate, and determine whether the installation route of the lower plate matches the preset component installation route. If so, proceed to step S3.

3. The assembly method for determining the component installation route based on image recognition according to claim 1, characterized in that: Step S3 includes: S31 After all the lower boards are placed, a PCB board is placed on the upper surface of the lower board. The identification mechanism determines the position of the PCB board in combination with the correct installation surface image of the component in the component comparison library, and determines whether the PCB board meets the preset route requirements. If the requirements are met, enter step S32. S32 After all PCB boards are placed, an upper board is placed on the upper surface of the PCB board. The recognition mechanism determines the position of the upper board in combination with the component comparison library, and determines whether the PCB board meets the preset route requirements. If so, the process proceeds to step S33; S33 After all upper panels are correctly placed, the assembly of the components is completed.

4. The assembly method for determining the component installation route based on image recognition according to claim 1, characterized in that: There are four assembly slots on the carrier, in which components can be placed. The preset component installation route is clockwise in the plane where the carrier is located.

5. The assembly method for determining the component installation route based on image recognition according to claim 2, characterized in that: In step S21, the lower plate is placed in the assembly slot, and the recognition mechanism captures the carrier image to ensure that the component placed is the lower plate, and compares the installation surface image of the lower plate with the correct installation surface image of the preset component to determine whether the lower plate is installed in the assembly slot from the front.

6. The assembly method for determining the component installation route based on image recognition according to claim 3, characterized in that: In step S31, a PCB board is placed in the assembly slot, and the recognition mechanism captures the carrier image to ensure that the placed component is a PCB board, and compares the installation surface image of the PCB board with the correct installation surface image of the component. If they match, it is determined that the PCB board is installed on the lower plate from the front.

7. The assembly method for determining the component installation route based on image recognition according to claim 3, characterized in that: In step S32, the upper plate is placed in the assembly slot, and the recognition mechanism captures the carrier image to ensure that the component placed is the upper plate, and compares the installation surface image of the upper plate with the correct installation surface image of the component. If they match, it is determined that the upper plate is installed on the PCB board from the front.

8. The assembly method for determining the component installation route based on image recognition according to claim 1, characterized in that: The assembly equipment includes a fastening assembly machine, which includes a third frame, a third workbench is arranged on the third frame, a three-dimensional mobile module is arranged on the third workbench, an assembly device is arranged on the three-dimensional mobile module, a third detection module is arranged on one side of the assembly device, a third upper conveying device and a feeding mechanism are arranged on the third workbench, the third upper conveying device is provided with a third upper conveying mechanism, a third locking and lifting mechanism, a third identification module, a third limiting mechanism and a pressing plate mechanism, the third upper conveying mechanism is used to convey a carrier, the third identification module is used to identify carrier information, the third locking and lifting mechanism can lift the carrier to a corresponding position of the pressing plate mechanism, a PCB component is placed on the carrier accordingly, the feeding mechanism is used to provide fasteners, the assembly device can be moved to the feeding mechanism to take the fasteners through the three-dimensional mobile module, and the position of screwing the fasteners on the component can be determined through the third detection module, there are more than two PCB components placed on the carrier, the assembly device follows a preset component installation route, the assembly device screws the fasteners on the PCB component, and the third detection module detects the position of the fasteners on the PCB component.

9. The assembly method for determining the component installation route based on image recognition according to claim 8, characterized in that: In step S4, the carrier is lifted to the corresponding position of the pressure plate mechanism by the third locking lifting mechanism, and the position of the screwed fasteners is identified by the third detection module and the fasteners are assembled according to the preset component installation route. After the installation, the fastener installation status is detected to determine whether it meets the requirements.

10. The assembly method for determining the component installation route based on image recognition according to claim 9, characterized in that: S4 includes: When installing fasteners on a component on an assembly slot, use a diagonal pattern, first tighten the upper left corner mounting hole, and then tighten the lower right corner mounting hole.

Images