Appearance detection device for metal mesh

Abstract

The utility model provides a metal mesh appearance detection device, which comprises a machine table, and an object carrying platform, a moving module, a detection module and a machine cover which are arranged on the machine table, the detection module is movably erected above the object carrying platform through the moving module, the object carrying platform is erected above the machine table through a supporting rod, and the machine cover is arranged on the machine table. A detection window is formed in the middle of the object carrying platform, transparent glass is arranged on the detection window and used for bearing a metal mesh to be detected, a light source is arranged below the detection window, and a horizontal adjustment module is arranged below the object carrying platform and used for carrying out horizontal fine adjustment on the object carrying platform. According to the device, the test performance, the practical performance and the mechanical performance break through the limitation of traditional detection equipment through an integrated intelligent clean type measurement system integrating high-pixel machine vision, a precise mu-level detection platform, a high-performance direct-drive linear motor and the like.

Description

Technical Field

[0001] The utility model relates to the field of visual inspection, in particular to a metal grid appearance inspection device. Background Art

[0002] As a versatile material, metal mesh offers broad application prospects. It not only provides electromagnetic interference shielding in fields like electronic warfare, but also offers unique value in optoelectronics, security, and energy. However, due to limitations in processing technology, the resulting metal mesh often exhibits certain deviations from expectations, such as defects in appearance or dimensions. This can easily degrade the performance of the entire application system, necessitating rigorous testing of metal mesh samples.

[0003] Traditional metal mesh inspection mainly relies on manual observation under a microscope, which is time-consuming and labor-intensive, and highly dependent on the experience and energy of the experimenter. The inspection efficiency and accuracy are low. Therefore, visual inspection equipment came into being. However, the inspection equipment currently used still has some shortcomings, such as limited test accuracy, limited mechanical properties, limited adjustability, limited test speed, and low continuous working performance. It can be used in conventional testing environments, but cannot meet the inspection needs of clean and dust-free factories. Utility Model Content

[0004] In view of the above, the utility model provides a metal mesh appearance inspection device, which breaks through the limitations of traditional inspection equipment in terms of testing performance, practical performance and mechanical performance through an integrated intelligent clean measurement system including high-pixel machine vision, a precise inspection platform and a high-performance direct-drive linear motor.

[0005] The utility model adopts the following technical solution: a metal mesh appearance detection device, including a machine platform and a loading platform, a mobile module, a detection module and a machine cover arranged on the machine platform, the detection module is movably mounted above the loading platform through the mobile module, the loading platform is mounted above the machine platform through a support rod, a detection window is opened in the middle of the loading platform, the detection window is provided with transparent glass for carrying the metal mesh to be detected, a light source is arranged below the detection window, and a horizontal adjustment module is arranged below the loading platform for fine-tuning the horizontal level of the loading platform.

[0006] Furthermore, the horizontal adjustment module includes a connecting block, a threaded sleeve, a spherical gasket and a bolt. The connecting block is an L-shaped structure. The vertical section of the connecting block is connected to the loading platform. A fixing hole is opened in the center of the horizontal section of the connecting block. The spherical gasket is arranged on the machine platform. The fixing hole is pressed on the spherical gasket. The threaded sleeve is embedded in the fixing hole and reaches the surface of the spherical gasket. The bolt passes through the through holes in the center of the threaded sleeve and the center of the spherical gasket to fix the connecting block to the machine platform.

[0007] Furthermore, a support frame is connected to the loading platform below the detection window, and the vertical section of the connecting block is connected to the loading platform through the support frame.

[0008] Furthermore, the movable module includes a Y-axis movable module, an X-axis movable module, a column and a beam. The Y-axis movable module is arranged on the machine table, the X-axis movable module is arranged on the beam, the beam is arranged on the Y-axis movable module through the column, and performs Y-axis linear motion under the drive of the Y-axis movable module. The detection module is arranged on the X-axis movable module and performs X-axis linear motion under the drive of the X-axis movable module.

[0009] Furthermore, two Y-axis moving modules are provided, which are arranged in parallel on both sides of the machine platform, and the columns are fixed on the moving slides of the two Y-axis moving modules through moving plates.

[0010] Furthermore, the table top of the machine, the beams and the columns are all made of marble.

[0011] Furthermore, a movable window is provided on the loading platform, and the movable window is arranged on both sides of the detection window.

[0012] Furthermore, the detection module includes a detection camera and a Z-axis lifting module, and the detection camera is set on the X-axis moving module through the Z-axis lifting module.

[0013] Furthermore, a ring light source is provided below the detection camera.

[0014] Furthermore, a fan filter unit is provided on the top of the hood.

[0015] This new metal mesh appearance inspection device utilizes a 000-grade marble platform and gantry as its base frame, along with a test platform leveling mechanism to eliminate cumulative deviations caused by unavoidable factors and improve mechanical accuracy. Equipped with dual Y-axis linear modules as the Y-axis motion source, the device boasts smooth, high-speed movement and an ultra-high load capacity, providing greater acceleration and driving force, enabling continuous measurement under prolonged, high-speed, and frequent motion. Furthermore, the device utilizes a highly compact overall layout, significantly reducing its size. The enclosed clean air supply ensures a clean, spacious, and stable inspection space, meeting the high-precision inspection requirements of small, cleanroom workshops. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the device of the present utility model.

[0017] Figure 2 This is a partial structural diagram of the device of the utility model without the hood and frame.

[0018] Figure 3 This is a schematic diagram of the position and structure of the horizontal adjustment module of the utility model.

[0019] Figure 4 It is a partially enlarged schematic cross-sectional view of the level adjustment module of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "setting", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood based on specific circumstances.

[0022] Reference Figure 1-Figure 3 The metal mesh appearance inspection device of this embodiment includes a machine platform 1, a loading platform mounted on the machine platform, a movable module, an inspection module, and a housing 2. The machine platform 1 consists of a tabletop and a frame below. The inspection module is movably mounted above the loading platform 3 via a movable module. The loading platform 3 is mounted above the machine platform 1. An inspection window 32 is defined in the center of the loading platform 3. This inspection window 32 is constructed of transparent, flat, tempered glass 321, which supports the metal mesh 100 to be inspected, meeting testing conditions requiring backlighting. Tempered glass provides more stable structural properties, with improved hardness, rigidity, and impact resistance. It shatters into small, passive particles upon impact, ensuring safety. A light source 4 is located below the inspection window 32. This flat-panel light source covers the entire inspection window. A leveling module 5 is located below the loading platform 3 for fine-tuning the level of the loading platform 3. The loading platform 3 also has movable windows 33, located on either side of the inspection window 32, serving as passageways for the columns 8.

[0023] Reference Figure 3-Figure 4Specifically, the support frame 31 is connected to the lower side of the detection window 32 of the loading platform 3. The horizontal adjustment module 5 acts on the support frame 31 to perform fine-leveling of the loading platform. There are four horizontal adjustment modules 5, which are respectively arranged at the four end corners of the rectangular support frame 31. Furthermore, the horizontal adjustment module 5 includes a connecting block 51, a threaded sleeve 52, a bolt 53, and a spherical gasket 54. The connecting block 51 is an L-shaped structure, in which the vertical section is fixed to the support frame 31, and a fixing hole is opened in the center of the horizontal section. The spherical gasket 54 is arranged on the machine 1, and the fixing hole is pressed on the spherical gasket 54. The threaded sleeve 52 is embedded in the fixing hole and reaches the surface of the spherical gasket 54. The bolt 53 passes through the through holes in the center of the threaded sleeve 52 and the center of the spherical gasket 54 to fix the connecting block 51 to the machine 1. By loosening the bolt 53, the threaded sleeve 52 can be adjusted to change the position angle of the connecting block 51, thereby adjusting the horizontality of the loading platform 3. The inner ring of the fixing hole of the connecting block 51 is provided with a thread, and the outer ring of the threaded sleeve 52 is provided with an external thread that matches the inner ring thread of the fixing hole. The lower end surface of the threaded sleeve 52 is arc-shaped and contacts the spherical gasket 54.

[0024] Due to the special structure of the horizontal adjustment module 5, when it is found that the levelness of the loading platform 3 deviates, the horizontal adjustment modules 5 at the four corners can be adjusted independently. The rotating threaded sleeve 52 drives the connecting block 51 to change the height of the support frame 31, and the setting of the spherical gasket 54 allows the connecting block 51 to produce a slight rotation of ±1° along the spherical gasket 54. The platform is adjusted to an ideal horizontal state in conjunction with the micrometer measurement. After the adjustment is completed, the bolts 53 are tightened and fixed to the machine 1. The horizontal adjustment mechanism can effectively compensate for the processing errors and assembly cumulative errors in the mechanical structure, and achieve a higher actual flatness level.

[0025] Furthermore, the mobile module includes a Y-axis mobile module 6, an X-axis mobile module 7, a column 8 and a crossbeam 9. The Y-axis mobile module 6 is arranged on the machine table 1, and the X-axis mobile module 7 is arranged on the crossbeam 9. The crossbeam 9 is arranged on the Y-axis mobile module 6 through the column 8, and performs Y-axis linear motion under the drive of the Y-axis mobile module 6. The detection module is arranged on the X-axis mobile module and performs X-axis linear motion under the drive of the X-axis mobile module. In this embodiment, the Y-axis mobile module 6 and the X-axis mobile module 7 use ironless linear motors as power, which can better eliminate the frustration force and provide greater acceleration and driving force, thereby realizing continuous measurement under long-term high-speed and frequent motion. Specifically, there are two Y-axis mobile modules 6, which are arranged in parallel on both sides of the machine table. The column 8 is fixed on the moving slides of the linear motors of the two Y-axis mobile modules through the moving plate 61, and the two Y-axis linear motors work synchronously.

[0026] Preferably, the table top, crossbeam 9 and column 8 of the machine 1 are all made of marble. Marble has the advantages of acid and alkali resistance, corrosion resistance and small thermal expansion coefficient. After years of natural aging, it has no internal stress, stable structure, will not rust, and has outstanding characteristics of no local deformation when subjected to external force, ensuring the permanent stability of the main structure of the test function and is not affected by temperature, humidity and external force. The marble surface used in this embodiment adopts 000-level precision level, and the flatness is controlled below 1.5μ. This level reaches the highest level of precision after marble grinding.

[0027] The detection module includes a detection camera 10 and a Z-axis lifting module 11. The detection camera 10 is arranged on the X-axis moving module 7 through the Z-axis lifting module 11. Specifically, the detection camera 10 is detachably arranged on the Z-axis lifting module 11 through a mounting block. An annular light source 12 is arranged below the detection camera 10. The annular light source 12 is also arranged on the Z-axis lifting module 11 and moves synchronously with the detection camera 10. The detection camera 10 adopts a 2000W pixel array camera with a 3.0 magnification circular lens 101 to meet high-speed and high-definition measurement. The detection camera 10 is arranged on the XYZ three-axis linear module, which is convenient for automatic adjustment to be compatible with different products and different working distances. In addition, the detection camera is quick-detachable, and the test instruments and parts can be quickly replaced according to the test requirements of different test grids without major adjustments on the mechanical structure. The compatibility and interchangeability advantages are outstanding.

[0028] The hood 2 is a fully enclosed open-door structure with opening and closing doors 22 at the inlet and outlet, and a separate maintenance window 23 at the linear motor maintenance area. A fan filter unit 21 is provided on the top of the hood 2 to ensure the cleanliness of the test while accelerating the circulation of air, which is beneficial to the dissipation of the working heat of the linear motors of the Y-axis moving module 6, the X-axis moving module 7, and the Z-axis lifting module 11, ensuring a clean environment and zero interference during long-term testing, and meeting the requirements of dust-free testing of semiconductors, chips, grids and other products. The fan filter unit here uses existing technology and will not be elaborated on here. The frame of the machine is spliced on four sides and can be disassembled separately, facilitating equipment maintenance and debugging to the greatest extent.

[0029] The linear motor, linear guide rail, sensor, etc. of this equipment are covered under the accordion cover 200, and the marble platform and cable drag chain are covered under the painted sheet metal, which facilitates manual loading and unloading of materials and ensures the neatness and uniformity of the overall structure of the machine. The whole machine has a compact structure and high space utilization rate. The targeted design of the appearance of the marble platform has greatly reduced the volume of the entire machine.

[0030] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in this field should understand that technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered by the scope of the claims of the present invention.

Claims

1. A metal grid appearance inspection device, comprising a machine platform, a loading platform, a moving module, an inspection module, and a machine cover, characterized in that: The detection module is movably mounted above the loading platform through the movable module. The loading platform is mounted above the machine. A detection window is opened in the middle of the loading platform. The detection window is provided with transparent glass. A light source is provided below the detection window. A horizontal adjustment module is provided below the loading platform for horizontally adjusting the loading platform.

2. The metal grid appearance inspection device according to claim 1, wherein: The horizontal adjustment module includes a connecting block, a threaded sleeve, a spherical gasket and a bolt. The connecting block is an L-shaped structure. The vertical section of the connecting block is connected to the loading platform. A fixing hole is opened in the center of the horizontal section of the connecting block. The spherical gasket is arranged on the machine platform. The fixing hole is pressed on the spherical gasket. The threaded sleeve is embedded in the fixing hole and reaches the surface of the spherical gasket. The bolt passes through the through holes in the center of the threaded sleeve and the center of the spherical gasket to fix the connecting block to the machine platform.

3. The metal grid appearance inspection device according to claim 2, wherein: A support frame is connected to the loading platform below the detection window, and the vertical section of the connecting block is connected to the loading platform through the support frame.

4. The metal grid appearance inspection device according to claim 2, wherein: The moving module includes a Y-axis moving module, an X-axis moving module, a column and a beam. The Y-axis moving module is set on the machine table, the X-axis moving module is set on the beam, and the beam is set on the Y-axis moving module through the column and performs Y-axis linear motion under the drive of the Y-axis moving module. The detection module is set on the X-axis moving module and performs X-axis linear motion under the drive of the X-axis moving module.

5. The metal grid appearance inspection device according to claim 4, wherein: There are two Y-axis moving modules, which are arranged in parallel on both sides of the machine platform. The columns are fixed on the moving slides of the two Y-axis moving modules through moving plates.

6. The metal grid appearance inspection device according to claim 4, wherein: The table top of the machine, the crossbeams and the columns are all made of marble.

7. The metal grid appearance inspection device according to claim 1, wherein: The loading platform is further provided with movable windows, which are arranged on both sides of the detection window.

8. The metal grid appearance inspection device according to claim 4, wherein: The detection module includes a detection camera and a Z-axis lifting module, and the detection camera is arranged on the X-axis moving module through the Z-axis lifting module.

9. The metal grid appearance inspection device according to claim 8, wherein: An annular light source is provided below the detection camera.

10. The metal grid appearance inspection device according to claim 1, wherein: A fan filter unit is arranged on the top of the hood.

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