Anti-short-circuit filter assembly tool

Abstract

The invention provides an anti-short-circuit filter assembly tool, which relates to the technical field of filter assembly tools, and comprises an assembly clamp, an anti-short-circuit hollow partition column, an image acquisition module, a visual assembly guide module, an in-place assembly checking module, an in-place assembly checking module and an assembly manipulator. Stable clamping of the filter is achieved through the assembling clamp, basic guarantee is provided for assembling, the short circuit problem caused by contact of different materials is effectively avoided through the short circuit prevention hollow partition columns, the product safety is improved, automation and precision of the assembling process are achieved through cooperation of image acquisition and the visual guidance module, and the assembling efficiency is improved. Manual operation errors are reduced, the assembly in-place checking module can timely find out the situation that parts are not assembled in place, the assembly quality is guaranteed, the overall structure works cooperatively, and the efficiency and reliability of filter assembly are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of filter assembly tooling, and particularly relates to a short-circuit-preventing filter assembly tooling. BACKGROUND

[0002] With the rapid development of 5G communication technology, radio frequency devices such as cavity filters and duplexers are increasingly widely used in communication systems, and their structures are developing towards high-density integration and miniaturization, which puts forward higher requirements for assembly precision and reliability. In the assembly process of a cavity filter, various metal materials such as a resonant rod, a tuning screw and a flying rod sheet are contained inside. The spacing design between these materials directly affects the electrical performance of the filter. If the spacing is too small or contact occurs, a short circuit phenomenon is easily caused, resulting in product failure. At present, traditional filter assembly relies on manual operation or simple tooling assistance, which has many technical pain points. Firstly, manual assembly cannot guarantee the safe spacing (such as the >1mm spacing required in the design specification of a radio frequency filter) between different materials. In particular, in a high-density integrated cavity structure, the risk of contact between the resonant rod and other components is significantly increased, and the short circuit failure rate is high. Secondly, there is a lack of precise positioning and guidance mechanism, and the assembly position of the material is prone to deviation, which not only affects the performance consistency of the filter, but also requires additional investment of a large amount of time for detection and adjustment, thereby prolonging the production cycle. Thirdly, improper force control during clamping may cause deformation of the filter shell and other components due to overload, affecting the subsequent assembly precision. Fourthly, dust, debris and other dirt may be left inside the cavity after assembly, which may cause a decrease in insulation performance or a short circuit hazard if not cleaned in time. Fifthly, the existing assembly process lacks a full-cycle quality monitoring and feedback mechanism, making it difficult to discover assembly abnormalities in real time, resulting in unqualified products flowing into subsequent processes, increasing the cost of rework and the difficulty of failure analysis. SUMMARY

[0003] The application provides a short-circuit-preventing filter assembly tooling to solve at least one of the above technical problems.

[0004] To solve the above technical problems, the application discloses a short-circuit-preventing filter assembly tooling, which comprises: An assembly clamp is used to clamp the filter and assist in filter assembly. A short-circuit-preventing hollow partition column is used to be placed between different materials in the filter cavity to ensure the spacing between different materials and prevent short circuit caused by contact. An image acquisition module is used to acquire filter assembly images in real time. A visual assembly guidance module is used to analyze real-time filter assembly images, generate assembly path instructions based on the analysis results, and control an assembly robot to perform filter assembly. An assembly-in-place checking module is configured to acquire an assembly image of the filter collected by the image acquisition module after the filter is completely assembled inside the filter cavity, and analyze the assembly image of the filter collected by the image acquisition module after the filter is completely assembled inside the filter cavity, to check whether each component inside the filter cavity is assembled in place. An assembly robot is configured to perform filter assembly based on the assembly path instructions.

[0005] Preferably, the assembly fixture comprises: A placement plate is configured to place a filter shell of a filter to be assembled. An electric clamping lead screw is rotationally connected in a guide sliding groove of the placement plate, and a clamping nut is threadedly connected to the electric clamping lead screw. A clamping block is detachably connected to the clamping nut, and the clamping block is configured to clamp the filter shell. The assembly robot is slidingly connected to a robot mounting table on both sides of the placement plate, and is configured to assemble the filter shell, the filter cover, the resonant rod and the short-circuit prevention hollow partition column into a complete filter based on the assembly path instructions.

[0006] Preferably, the assembly fixture further comprises a clamping force control module configured to control the clamping force of the clamping block, and the clamping force control module comprises: A pressure sensing unit is embedded in the inner side of the clamping block, and is configured to detect the clamping force of the clamping block on the filter shell in real time. A control unit is configured to dynamically adjust the rotation speed of the electric clamping lead screw based on a target clamping force. An overload protection unit is electrically connected with the pressure sensing unit and the electric clamping lead screw, and is configured to cut off the power supply of the electric clamping lead screw when the clamping force of the clamping block on the filter shell is greater than a preset threshold, to prevent the filter shell from being deformed due to overload.

[0007] Preferably, the short-circuit prevention hollow partition column comprises: A hollow cylindrical body is configured to be placed between different materials inside the filter cavity. A multilayer insulation coating is coated on the outer surface of the hollow cylindrical body, and is configured to enhance the insulation performance thereof. A guide protrusion is provided at one end of the hollow cylindrical body, and is configured to cooperate with the inner wall of the filter shell or the filter cover for positioning.

[0008] Preferably, the visual assembly guide module comprises: An image preprocessing submodule is configured to perform noise reduction processing on a real-time filter assembly original image acquired by the image acquisition module. An edge extraction submodule is configured to locate the contour coordinates of the materials, including the filter shell, the resonant rod and the short-circuit prevention hollow partition column, from the noise-reduced filter assembly original image. a path planning submodule configured to generate an optimal motion path of the assembly robot based on the contour coordinates of the material; The output end of the image preprocessing submodule is electrically connected with the input end of the edge extraction submodule, the output end of the edge extraction submodule is electrically connected with the input end of the path planning submodule, and the output end of the path planning submodule is electrically connected with the control end of the assembly robot to output a control signal.

[0009] Preferably, the path planning submodule further outputs a pose matrix T of the assembly robot, which is used to accurately control the spatial pose of the robot, and the pose matrix is: ; wherein, is the rotation angle of the end of the assembly robot around the z-axis, which is used to adjust the assembly direction of the material, , and respectively represent the displacement of the assembly robot in the x, y and z axis directions, which is used to accurately place the material to the assembly position.

[0010] Preferably, the visual assembly guidance module further comprises a collision avoidance detection submodule, which is used to detect the minimum distance between the assembly robot and the non-assembly material in the filter in real time. When the minimum distance between the assembly robot and the non-assembly material in the filter is less than the preset minimum distance, the collision avoidance detection submodule sends an interrupt signal to the path planning submodule to control the robot to immediately retreat, avoiding mechanical collision.

[0011] Preferably, the assembly-in-place checking module comprises: a three-dimensional reconstruction submodule configured to generate a three-dimensional point cloud of the assembled filter based on the principle of binocular vision , wherein = ( ), respectively represent the x-axis, y-axis and z-axis coordinates of the kth filter coordinate point, respectively represent the 1st, 2nd and kth filter coordinate points; a deviation analysis submodule configured to calculate the assembly deviation between the three-dimensional point cloud of the assembled filter and the preset standard template point cloud. If the assembly deviation is greater than the preset assembly deviation, it is determined that there is an assembly deviation; a short-circuit risk assessment submodule configured to detect the minimum distance between the resonant rod and the short-circuit prevention hollow partition column. If the minimum distance between the resonant rod and the short-circuit prevention hollow partition column is less than the preset minimum distance between the resonant rod and the short-circuit prevention hollow partition column, a short-circuit risk warning prompt is triggered.

[0012] Preferably, it further comprises an automatic cleaning module, which is used to clean the surface of each material inside the filter cavity after each assembly inside the filter cavity is completed. The automatic cleaning module comprises: A dirtiness evaluation unit is configured to quantitatively evaluate the dirtiness of the surface of each material by using image recognition technology, and obtain dirtiness level data of each material; A cleaning parameter setting unit is configured to automatically generate corresponding dust suction intensity, dust suction time and dust suction path based on the dirtiness level data of each material output by the dirtiness evaluation unit; A dust suction execution mechanism is configured to perform dust suction operation on the surface of the material according to the instruction of the cleaning parameter setting unit; A multi-angle dust suction nozzle group is configured to adjust the angle and direction of the dust suction nozzle according to the shape and position of the surface of different materials; A cleaning effect verification unit is configured to perform secondary detection on the surface of the material after the dust suction is completed, and determine whether the preset cleaning standard is reached; A cleaning record storage unit is configured to record the dirtiness level, dust suction parameter and cleaning result in each cleaning process.

[0013] Preferably, an assembly quality feedback module is further included, which is configured to monitor and evaluate the quality of the entire filter assembly process in real time, and the assembly quality feedback module includes: A multi-sensor data fusion unit is configured to integrate the data of the image acquisition module, pressure sensing unit, pose matrix information and cleaning record storage unit of the anti-short-circuit filter assembly tooling, and construct a multi-dimensional data set of the assembly process; An assembly quality evaluation sub-module is configured to comprehensively evaluate the positioning accuracy, clamping stability, cleanliness and assembly path rationality of each component in the filter assembly process based on the data provided by the multi-sensor data fusion unit, and generate an assembly quality score; An abnormality early warning sub-module is configured to issue an alarm to the operator and automatically pause the assembly process when the assembly quality score is lower than a preset threshold, so as to prevent unqualified products from entering subsequent processes.

[0014] Compared with the prior art, the present application has the following beneficial effects: The present application realizes stable clamping of the filter through the assembly clamp, provides a basic guarantee for assembly, effectively avoids the short circuit problem caused by contact of different materials, improves the product safety, realizes automation and precision of the assembly process through cooperation of the image acquisition and visual guidance module, reduces the manual operation error, the assembly in-place checking module can timely find the situation that the components are not assembled in place, ensures the assembly quality, and the overall structure works cooperatively, improves the efficiency and reliability of the filter assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application together with the embodiments thereof, and explain the present application, and do not constitute a limitation of the present application. In the drawings: Fig. 1 Figure is a schematic diagram of the short-circuit prevention hollow partition column structure of the present application; Fig. 2 Figure is a schematic diagram of the assembly fixture structure of the present application; Fig. 3 Figure is a schematic diagram of the placement plate structure of the present application.

[0016] In the figure: 1, short-circuit prevention hollow partition column; 2, placement plate; 3, filter shell; 4, electric clamping lead screw; 5, guide chute; 6, clamping nut; 7, clamping block; 8, filter cover; 9, resonant rod; 10, assembly robot. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0018] In addition, the description such as “first”, “second” and the like in the present application is only for the purpose of description, and does not mean to particularly indicate the order or sequence, nor to limit the present application, which is merely to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first”, “second” can explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features of various embodiments can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.

[0019] The present application provides the following embodiments Embodiment 1 The embodiment of the present application provides a short-circuit prevention filter assembly tool, as shown in the figure, comprising: Figs. 1-3 An assembly fixture, the assembly fixture is used for clamping the filter, and assists in assembling the filter; A short-circuit prevention hollow partition column 1, which is used for being placed between different materials in the filter cavity, ensures the distance between different materials, and prevents short circuit due to contact; An image acquisition module, which is used for acquiring real-time filter assembly images; A visual assembly guidance module, which is used for analyzing the real-time filter assembly images, generating an assembly path instruction based on the analysis result, and controlling the assembly robot 10 to assemble the filter; ​An assembly-to-position checking module is configured to acquire the filter assembly image collected by the image collection module after the filter cavity is fully assembled, and analyze the filter assembly image collected by the image collection module after the filter cavity is fully assembled to check whether each component is assembled to position. An assembly robot 10 is configured to perform filter assembly based on the assembly path instruction.

[0020] The working principle and beneficial effects of the above technical solution are as follows: during the working of the short-circuit prevention filter assembly tooling, the assembly clamp clamps the filter to assist assembly, the short-circuit prevention hollow spacer column 1 is placed between different materials in the filter cavity to ensure spacing and prevent short circuit, the image collection module collects filter assembly images in real time, the visual assembly guidance module analyzes the real-time images and generates an assembly path instruction, the control assembly robot 10 performs filter assembly, and the assembly-to-position checking module acquires the image after assembly and analyzes whether each component is assembled to position. The assembly clamp of the present application realizes stable clamping of the filter, provides basic guarantee for assembly, the short-circuit prevention hollow spacer column 1 effectively avoids the short circuit problem caused by contact between different materials, improves product safety, the cooperation of the image collection module and the visual guidance module realizes automation and precision of the assembly process, reduces manual operation error, the assembly-to-position checking module can timely find the case that the components are not assembled to position, ensures assembly quality, the overall structure works cooperatively, and improves the efficiency and reliability of filter assembly.

[0021] Embodiment 2 On the basis of embodiment 1, the assembly clamp comprises: A placement plate 2 is configured to place the filter shell 3 of the filter to be assembled. An electric clamping lead screw 4 is rotationally connected in a guide sliding groove 5 of the placement plate 2, and a clamping nut 6 is threadedly connected to the electric clamping lead screw 4. A clamping block 7 is detachably connected to the clamping nut 6, and the clamping block 7 is configured to clamp the filter shell 3. The assembly robot 10 is slidingly connected to the robot mounting table on both sides of the placement plate 2, and is configured to assemble the filter shell 3, the filter cover 8, the resonant rod 9 and the short-circuit prevention hollow spacer column 1 into a complete filter based on the assembly path instruction.

[0022] The working principle and beneficial effects of the above technical solution are as follows: the placement plate 2 of the assembly fixture is used to place the filter shell 3 to be assembled, the electric clamping lead screw 4 is rotationally connected in the guide sliding groove 5 of the placement plate 2, the rotation drives the threaded clamping nut 6 to move, and then the detachably connected clamping block 7 on the clamping nut 6 clamps the filter shell 3, and the assembly robot 10 is slidably connected on the robot mounting table on both sides of the placement plate 2. The filter shell 3, filter cover 8, resonant rod 9 and short-circuit prevention hollow partition column 1 are assembled into a complete filter based on the assembly path instruction. The placement plate 2 provides a stable placement platform for the filter shell 3, the cooperation of the electric clamping lead screw 4 and the guide sliding groove 5 makes the movement of the clamping block 7 more stable and accurate, the detachable clamping block 7 facilitates replacement according to different specifications of the filter shell 3, and the universality of the tooling is enhanced. The sliding design of the assembly robot 10 on the two mounting tables expands the assembly range, enabling flexible assembly of the shell, cover, resonant rod 9 and short-circuit prevention hollow partition column 1, further improving the flexibility and adaptability of assembly, and ensuring the smoothness of the assembly process of different components.

[0023] Embodiment 3 Based on embodiment 2, a clamping force control module is further included, which is used to control the clamping force of the clamping block 7. The clamping force control module includes: A pressure sensing unit embedded in the inner side of the clamping block 7 is used to detect the clamping force of the clamping block 7 on the filter shell 3 in real time; A control unit is used to dynamically adjust the rotation speed of the electric clamping lead screw 4 based on the target clamping force; An overload protection unit is electrically connected with the pressure sensing unit and the electric clamping lead screw 4, and is used to cut off the power supply of the electric clamping lead screw 4 when the clamping force of the clamping block 7 on the filter shell 3 is greater than a preset threshold, to prevent the filter shell 3 from being deformed due to overload.

[0024] The working principle and beneficial effects of the above technical solution are as follows: the clamping force control module participates in work, its pressure sensing unit is embedded in the inner side of the clamping block 7, and the clamping force of the clamping block 7 on the filter shell 3 is detected in real time. The control unit dynamically adjusts the rotation speed of the electric clamping lead screw 4 based on the target clamping force, and the overload protection unit is electrically connected with the pressure sensing unit and the electric clamping lead screw 4. When the clamping force is greater than a preset threshold, the power supply of the electric clamping lead screw 4 is cut off to prevent the filter shell 3 from being deformed due to overload; The pressure sensing unit can monitor the clamping force in real time, providing data support for precise control of the clamping force. The control unit adjusts the speed of the electric clamping lead screw 4 dynamically to achieve adaptive adjustment of the clamping force, ensuring that the clamping force meets the assembly requirements, and both stable clamping of the shell and displacement caused by insufficient force are avoided. The overload protection unit cuts off the power supply when the clamping force is too large, effectively preventing deformation of the filter shell 3 due to overload, protecting the integrity of the workpiece, and improving the safety and reliability of the assembly process.

[0025] Embodiment 4 Based on embodiment 1, the anti-short-circuit hollow partition column 1 comprises: a hollow cylindrical body for placing between different materials in the filter cavity; a multilayer insulation coating coated on the outer surface of the hollow cylindrical body for enhancing its insulation performance; a guide protrusion arranged at one end of the hollow cylindrical body for positioning with the inner wall of the filter shell 3 or the filter cover 8.

[0026] The working principle and beneficial effects of the above technical solution are as follows: the hollow cylindrical body of the anti-short-circuit hollow partition column 1 is placed between different materials in the filter cavity, the multilayer insulation coating coated on its outer surface enhances its insulation performance, and the guide protrusion arranged at one end of the hollow cylindrical body is positioned with the inner wall of the filter shell 3 or the filter cover 8. The hollow cylindrical body can effectively separate different materials in the filter cavity, ensuring the necessary spacing, the multilayer insulation coating further enhances the insulation performance of the anti-short-circuit hollow partition column 1, reducing the risk of short circuit, and the positioning of the guide protrusion with the inner wall of the filter shell 3 or the filter cover 8 improves the assembly precision of the anti-short-circuit hollow partition column 1 itself, ensuring that it can accurately play a separating role, and the overall structure makes the anti-short-circuit effect more stable, while the hollow design of the partition column reduces its own weight and the impact on the overall weight of the filter.

[0027] Embodiment 5 Based on embodiment 1, the visual assembly guidance module comprises: an image preprocessing submodule for performing noise reduction processing on the real-time filter assembly original image obtained by the image acquisition module; an edge extraction submodule for locating the contour coordinates of the materials from the noise-reduced filter assembly original image, wherein the materials include the filter shell 3, the resonant rod 9, and the anti-short-circuit hollow partition column 1; a path planning submodule for generating the optimal motion path of the assembly robot 10 based on the contour coordinates of the materials; The output end of the image preprocessing submodule is electrically connected with the input end of the edge extraction submodule, the output end of the edge extraction submodule is electrically connected with the input end of the path planning submodule, and the output end of the path planning submodule is electrically connected with the control end of the assembly robot 10, so as to output a control signal. The path planning submodule also outputs a pose matrix T of the assembly robot 10, which is used for accurately controlling the spatial posture of the robot, and the pose matrix is: ; wherein, is the rotation angle of the end of the assembly robot 10 around the z-axis, which is used for adjusting the assembly direction of the material, , and respectively represent the displacement of the assembly robot 10 in the x, y and z axis directions, which is used for accurately placing the material to the assembly position.

[0028] The working principle and beneficial effects of the above technical solution are as follows: the noise reduction processing of the image preprocessing submodule improves the clarity of the original image, providing a more reliable basis for subsequent edge extraction; the edge extraction submodule can accurately locate the contour coordinates of the filter shell 3, the resonant rod 9 and the short-circuit prevention hollow partition column 1, ensuring accurate identification of the material position; the optimal motion path generated by the path planning submodule reduces the invalid motion of the assembly robot 10, improving the assembly efficiency; the logic of the output pose matrix T is to adjust the assembly direction of the material through the rotation angle θ, and to accurately place the material to the assembly position through the x, y and z axis displacements , and , achieving accurate control of the spatial posture of the assembly robot 10 and greatly improving the assembly precision.

[0029] Embodiment 6 On the basis of embodiment 5, the visual assembly guide module further comprises a collision avoidance detection submodule, which is used for detecting the minimum distance between the assembly robot 10 and the non-assembly material in the filter in real time. When the detected minimum distance between the assembly robot 10 and the non-assembly material in the filter is less than the preset minimum distance, the collision avoidance detection submodule sends an interrupt signal to the path planning submodule to control the robot to immediately retreat, avoiding mechanical collision.

[0030] The working principle and beneficial effects of the above technical solution are as follows: the collision avoidance detection submodule of the visual assembly guide module detects the minimum distance between the assembly robot 10 and the non-assembly material in the filter in real time. When the detected minimum distance is less than the preset minimum distance, the collision avoidance detection submodule sends an interrupt signal to the path planning submodule to control the assembly robot 10 to immediately retreat, avoiding mechanical collision; The anti-collision detection sub-module can monitor the distance between the assembly robot 10 and non-assembly materials in real time, and send an interrupt signal to control the robot to retreat in time when the distance is too small, effectively avoiding the collision between the assembly robot 10 and other materials in the filter, protecting the integrity of the assembly robot 10 and the filter components, reducing the risk of equipment damage and workpiece rejection, and further improving the safety and stability of the assembly process.

[0031] Embodiment 7 On the basis of embodiment 1, the assembly-in-place checking module comprises: A three-dimensional reconstruction sub-module generates a three-dimensional point cloud of the assembled filter based on the principle of binocular vision , wherein = , respectively represent the coordinates of the x-axis, y-axis and z-axis of the kth filter coordinate point, respectively represent the 1st, 2nd and kth filter coordinate points; A deviation analysis sub-module is configured to calculate the assembly deviation between the three-dimensional point cloud of the assembled filter and the preset standard template point cloud, and if the assembly deviation is greater than the preset assembly deviation, it is determined that there is an assembly deviation; A short-circuit risk assessment sub-module is configured to detect the minimum distance between the resonant rod 9 and the short-circuit prevention hollow partition column 1, and if the minimum distance between the resonant rod 9 and the short-circuit prevention hollow partition column 1 is less than the preset minimum distance between the resonant rod 9 and the short-circuit prevention hollow partition column 1, a short-circuit risk warning is triggered.

[0032] The working principle and beneficial effects of the above technical solution are as follows: The three-dimensional point cloud generated by the three-dimensional reconstruction sub-module can comprehensively reflect the actual structure of the assembled filter, and each point coordinate accurately describes the spatial form of the filter, providing detailed three-dimensional data support for the evaluation of assembly quality. The deviation analysis sub-module can accurately identify assembly deviation by comparing the three-dimensional point cloud with the standard template, ensuring that each component is assembled in place. The short-circuit risk assessment sub-module detects the minimum distance between the resonant rod 9 and the short-circuit prevention hollow partition column 1, which can timely discover potential short-circuit hazards and alarm, avoiding the production of unqualified products. The overall module checks from two aspects of three-dimensional structure and safe distance, greatly improving the reliability of assembly quality and the safety of products.

[0033] Embodiment 8 On the basis of embodiment 1, an automatic cleaning module is further included, which is configured to clean the surface of each material inside the filter cavity after each assembly is completed. The automatic cleaning module comprises: A dirt assessment unit is configured to quantitatively assess the dirt level of the material surface through image recognition technology, and obtain the dirt level data of each material. A cleaning parameter setting unit is configured to automatically generate corresponding dust suction intensity, dust suction time and dust suction path based on the dirt level data of each material output by the dirt assessment unit; A dust suction execution mechanism is configured to perform dust suction operation on the material surface according to the instruction of the cleaning parameter setting unit; A multi-angle dust suction nozzle group is configured to adjust the angle and direction of the dust suction nozzle according to the shape and position of different material surfaces; A cleaning effect verification unit is configured to perform secondary detection on the material surface after the dust suction is completed to determine whether the preset cleaning standard is met; A cleaning record storage unit is configured to record the dirt level, dust suction parameter and cleaning result of each cleaning process.

[0034] The working principle and beneficial effects of the above technical solution are as follows: the automatic cleaning module works after each filter cavity is assembled, the dirt assessment unit quantitatively assesses the dirt level of the material surface through image recognition technology to obtain the dirt level data of each material, the cleaning parameter setting unit automatically generates corresponding dust suction intensity, dust suction time and dust suction path based on the dirt level data, the dust suction execution mechanism performs dust suction operation on the material surface according to the instruction, the multi-angle dust suction nozzle group adjusts the nozzle angle and direction according to the shape and position of different material surfaces, the cleaning effect verification unit performs secondary detection after the dust suction is completed to determine whether the standard is met, and the cleaning record storage unit records the dirt level, dust suction parameter and result of each cleaning; The dirt assessment unit realizes quantitative assessment of the dirt level of the material surface through image recognition, providing a targeted basis for cleaning, the cleaning parameter setting unit generates adaptive dust suction parameters based on the dirt level, avoiding the problems of insufficient cleaning or overcleaning, the dust suction execution mechanism can accurately perform dust suction operation, the multi-angle dust suction nozzle group can adapt to the shape and position of different materials to ensure that there is no dead angle in cleaning, the cleaning effect verification unit ensures that the cleaning quality meets the preset standard, and the cleaning record storage unit facilitates tracing of each cleaning process, improving the cleanliness after filter assembly, reducing performance failures caused by dirt, and improving the reliability and service life of the product.

[0035] Embodiment 9 On the basis of embodiment 1, an assembly quality feedback module is further included for real-time monitoring and quality assessment of the entire filter assembly process, and the assembly quality feedback module includes: A multi-sensor data fusion unit is configured to integrate the data of the image acquisition module, pressure sensing unit, pose matrix information and cleaning record storage unit of the short-circuit prevention filter assembly tooling to construct a multi-dimensional data set of the assembly process; The assembly quality evaluation submodule is configured to evaluate the positioning accuracy, clamping stability, cleanliness and assembly path rationality of each component in the filter assembly process based on the data provided by the multi-sensor data fusion unit, and generate an assembly quality score. The abnormality early warning submodule is configured to issue an alarm to the operator and automatically pause the assembly process when the assembly quality score is lower than a preset threshold, so as to prevent unqualified products from entering subsequent processes.

[0036] The working principle and beneficial effects of the above technical solution are as follows: the assembly quality feedback module monitors and evaluates the entire filter assembly process, the multi-sensor data fusion unit integrates the data of the image acquisition module, the pressure sensing unit, the pose matrix information and the cleaning record storage unit, constructs a multi-dimensional data set of the assembly process, the assembly quality evaluation submodule comprehensively evaluates the positioning accuracy, clamping stability, cleanliness and assembly path rationality of each component based on the data set, generates an assembly quality score, and the abnormality early warning submodule issues an alarm to the operator and automatically pauses the assembly process when the score is lower than a preset threshold, so as to prevent unqualified products from entering subsequent processes. The multi-sensor data fusion unit integrates various key data in the assembly process, and the constructed multi-dimensional data set comprehensively reflects the assembly state and provides a comprehensive basis for quality evaluation. The assembly quality evaluation submodule comprehensively evaluates the positioning accuracy, clamping stability, cleanliness and assembly path rationality, objectively reflects the assembly quality and generates a score, visualizes the quality status, and the abnormality early warning submodule timely alarms and pauses the process when the score is substandard, effectively prevents unqualified products from flowing, reduces subsequent rework costs, and improves the controllability of the overall assembly quality and the qualification rate of products.

[0037] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A short-circuit protection filter assembly fixture, characterized in that: include: Assembly fixtures are used to hold filters and assist in filter assembly. Short-circuit-proof hollow spacer (1) is used to place between different materials in the filter cavity to ensure the spacing between different materials and prevent short circuit due to contact; The image acquisition module is used to acquire images of the filter assembly in real time. The vision assembly guidance module is used to analyze the real-time filter assembly image, generate assembly path instructions based on the analysis results, and control the assembly robot (10) to assemble the filter. The assembly verification module is used to acquire the filter assembly image captured by the image acquisition module after the filter cavity is fully assembled, and to analyze the filter assembly image captured by the image acquisition module after the filter cavity is fully assembled to verify whether each component inside the filter cavity is assembled in place. An assembly robot (10) is used to perform filter assembly based on assembly path instructions.

2. The short-circuit protection filter assembly fixture according to claim 1, characterized in that: Assembly fixtures include: Placement plate (2), placement plate (2) is used to place the filter housing (3) of the filter to be assembled; Electric clamping screw (4) is rotatably connected in the guide groove (5) of the placement plate (2), and a clamping nut (6) is threaded on the electric clamping screw (4). Clamping block (7), which is detachably connected to clamping nut (6), is used to clamp the filter housing (3); Among them, the assembly robot (10) is slidably connected to the robot mounting platform on both sides of the placement plate (2) and is used to assemble the filter housing (3), filter cover (8), resonant rod (9) and anti-short circuit hollow partition (1) into a complete filter based on the assembly path instructions.

3. The short-circuit protection filter assembly fixture according to claim 2, characterized in that: It also includes a clamping force control module, which is used to control the clamping force of the clamping block (7). The clamping force control module includes: The pressure sensing unit is embedded inside the clamping block (7) and is used to detect the clamping force of the clamping block (7) on the filter housing (3) in real time. Control unit for dynamically adjusting the rotational speed of the electric clamping screw (4) based on the target clamping force; The overload protection unit is electrically connected to the pressure sensing unit and the electric clamping screw (4). It is used to cut off the power supply of the electric clamping screw (4) when the clamping force of the clamping block (7) on the filter housing (3) is greater than the preset threshold, so as to prevent the filter housing (3) from deforming due to overload.

4. The short-circuit protection filter assembly fixture according to claim 1, characterized in that: The short-circuit protection hollow diaphragm (1) includes: The hollow cylindrical body is used to be placed between different materials inside the filter cavity; A multi-layer insulating coating is applied to the outer surface of the hollow cylindrical body to enhance its insulation performance; A guide protrusion is set at one end of the hollow cylindrical body and is used to cooperate with the inner wall of the filter housing (3) or the filter cover (8) for positioning.

5. The short-circuit protection filter assembly fixture according to claim 1, characterized in that: The visual assembly guidance module includes: The image preprocessing submodule is used to perform noise reduction processing on the original image with real-time filter assembly acquired by the image acquisition module; An edge extraction submodule is used to locate the contour coordinates of materials from the original image of the denoised filter assembly, wherein the materials include the filter housing (3), the resonant rod (9), and the short-circuit-proof hollow spacer (1). The path planning submodule is used to generate the optimal motion path of the assembly robot (10) based on the contour coordinates of the material; The output of the image preprocessing submodule is electrically connected to the input of the edge extraction submodule, the output of the edge extraction submodule is electrically connected to the input of the path planning submodule, and the output of the path planning submodule is electrically connected to the control end of the assembly robot (10) to output control signals.

6. The short-circuit protection filter assembly fixture according to claim 5, characterized in that: The path planning submodule also outputs the pose matrix T of the assembly robot (10) for precise control of the robot's spatial posture. The pose matrix is ​​as follows: ;in, The rotation angle of the end effector (10) around the z-axis is used to adjust the material assembly direction. , and These represent the displacements of the assembly robot (10) in the x, y, and z axes, respectively, used to precisely place materials into the assembly position.

7. The short-circuit protection filter assembly fixture according to claim 5, characterized in that: The vision assembly guidance module also includes an anti-collision detection submodule. The anti-collision detection submodule is used to detect the minimum distance between the assembly robot (10) and the non-assembly material in the filter in real time. When the minimum distance between the assembly robot (10) and the non-assembly material in the filter is less than the preset minimum distance, the anti-collision detection submodule sends an interrupt signal to the path planning submodule to control the robot to immediately retract and avoid mechanical collision.

8. The short-circuit protection filter assembly fixture according to claim 1, characterized in that: The assembly verification module includes: The 3D reconstruction submodule generates a 3D point cloud of the assembled filter based on the principle of binocular vision. ,in =( ), Let x, y, and z represent the coordinates of the k-th filter point, respectively. These represent the coordinates of the 1st, 2nd, and kth filter points, respectively. The deviation analysis submodule is used to calculate the assembly deviation between the 3D point cloud of the assembled filter and the preset standard template point cloud. If the assembly deviation is greater than the preset assembly deviation, it is determined to be an assembly offset. The short-circuit risk assessment submodule is used to detect the minimum distance between the resonant rod (9) and the anti-short-circuit hollow spacer (1). If the minimum distance between the resonant rod (9) and the anti-short-circuit hollow spacer (1) is less than the preset minimum distance between the resonant rod (9) and the anti-short-circuit hollow spacer (1), a short-circuit risk alarm will be triggered.

9. The short-circuit protection filter assembly fixture according to claim 1, characterized in that: It also includes an automatic cleaning module, used to clean the surface of each material inside the filter cavity after each assembly. The automatic cleaning module includes: The dirt assessment unit is used to quantitatively assess the degree of dirt on the surface of materials through image recognition technology, and obtain dirt level data for each material. The cleaning parameter setting unit is used to automatically generate the corresponding suction intensity, suction time and suction path based on the dirt level data of each material output by the dirt assessment unit; The vacuuming actuator is used to perform vacuuming operations on the material surface according to the instructions of the cleaning parameter setting unit; Multi-angle suction nozzle assembly is used to adjust the angle and direction of the suction nozzle according to the shape and position of different material surfaces; The cleaning effect verification unit is used to perform a secondary inspection on the surface of the material after vacuuming to determine whether the preset cleaning standard has been met. The cleaning record storage unit is used to record the level of dirt, vacuuming parameters, and cleaning results for each cleaning process.

10. The short-circuit protection filter assembly fixture according to claim 1, characterized in that: It also includes an assembly quality feedback module, used for real-time monitoring and quality assessment of the entire filter assembly process. The assembly quality feedback module includes: The multi-sensor data fusion unit is used to integrate data from the image acquisition module, pressure sensing unit, pose matrix information and cleaning record storage unit of the short-circuit protection filter assembly fixture to construct a multidimensional dataset of the assembly process. The assembly quality assessment submodule is used to comprehensively evaluate the positioning accuracy, clamping stability, cleanliness, and assembly path rationality of each component during the filter assembly process based on the data provided by the multi-sensor data fusion unit, and generate an assembly quality score. The anomaly warning submodule is used to issue an alarm to the operator and automatically suspend the assembly process when the assembly quality score is lower than a preset threshold, so as to prevent unqualified products from entering the subsequent process.

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