Visual inspection apparatus for heat sinks

Abstract

The utility model relates to radiator processing technical field, especially a kind of visual inspection equipment for radiator, through the cooperative matching of workpiece transfer mechanism and visual inspection mechanism, high-precision, high-efficiency automation visual inspection to radiator workpiece hole position and processing feature is realized;The equipment adopts mutually perpendicular double linear drive structure, wherein the first linear drive assembly and the second linear drive assembly are all high-precision screw drive mechanism, effectively ensure the positioning accuracy and stability of carrying plate and detection lens module in moving process, eliminate the error caused by transmission gap;Visual inspection mechanism is equipped with liftable detection lens module, its inside is integrated with refracting lens and special light supplement component, can effectively inhibit workpiece surface reflection interference, ensure that clear, characteristic bright detection picture is collected under complex light condition.

Description

Technical Field

[0001] This utility model relates to the field of radiator processing technology, and in particular to a visual inspection device for radiators. Background Technology

[0002] After machining processes such as drilling and milling, the accuracy of the holes and the quality of the machining directly affect the assembly performance and heat dissipation efficiency of the product. Currently, manual sampling is mostly used in production. This method is inefficient, highly susceptible to subjective factors, and difficult to guarantee inspection accuracy, becoming a bottleneck restricting production automation and quality stability. Although machine vision technology has been gradually applied to industrial inspection, there is still a lack of efficient and reliable dedicated inspection solutions for complex features like those found in heat sinks. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a visual inspection device for radiators.

[0004] The present invention adopts the following technical solution: A visual inspection device for radiators, comprising: frame; The workpiece transfer mechanism includes a first linear drive assembly fixed to the frame and a support plate driven and connected to the first linear drive assembly; the first linear drive assembly drives the support plate to reciprocate along a first direction; and A visual inspection mechanism includes a gantry fixed to the frame, a second linear drive assembly fixed to the gantry, a lifting assembly connected to the second linear drive assembly, and a detection lens module connected to the lifting assembly; the second linear drive assembly drives the detection lens module to reciprocate along a second direction. Wherein, the first direction and the second direction are perpendicular to each other.

[0005] Preferably, the first linear drive assembly includes a first drive motor and a first transmission screw connected in a drive connection; the bottom of the support plate is fixedly provided with a first transmission nut screwed to the first transmission screw; the first drive motor drives the first transmission screw to rotate, thereby causing the support plate to reciprocate along the axial direction of the first transmission screw.

[0006] Preferably, the first transmission screw has two parallel first slide rails on both sides, and a first slider is slidably connected to the first slide rail, and the first slider is fixedly connected to the support plate.

[0007] Preferably, the second linear drive assembly includes a second drive motor, a second transmission screw driven by the second drive motor, a second transmission nut screwed to the second transmission screw, and a sliding seat fixedly connected to the second transmission nut; the lifting assembly is fixed on the sliding seat.

[0008] Preferably, the gantry frame is provided with a second slide rail arranged horizontally, and a second slider is provided on the second slide rail and slidably connected thereto, and the second slider is fixedly connected to the sliding seat.

[0009] Preferably, the lifting assembly includes a lead screw slide and a support plate connected by a drive, and the lens detection module is fixed on the support plate; a position sensor is fixedly provided on the side of the lead screw slide, and the position sensor is used to sense the lifting height.

[0010] Preferably, the detection lens module includes a housing, an optical detection lens, and an optical control component; the bottom of the housing is provided with a detection port, the optical detection lens is placed vertically with the detection end facing the detection port, and the optical control component is located at the detection port.

[0011] Preferably, the optical control component includes a housing, with an entrance hole and an exit hole respectively at the upper and lower ends of the housing; a refractive lens is provided inside the housing, and the refractive lens is disposed between the entrance hole and the exit hole; a supplementary light component is provided on the side of the refractive lens.

[0012] Preferably, the optical inspection lens includes an automatic zoom module.

[0013] Preferably, the support plate is provided with a plurality of connection holes for structural connection.

[0014] The beneficial effects of this utility model are as follows: The visual inspection equipment for radiators disclosed in this utility model achieves high-precision and high-efficiency automated visual inspection of the hole positions and processing features of radiator workpieces through the coordinated operation of the workpiece transfer mechanism and the visual inspection mechanism. The equipment adopts a mutually perpendicular dual linear drive structure, in which both the first and second linear drive components use high-precision screw transmission mechanisms, effectively ensuring the positioning accuracy and stability of the carrier plate and the inspection lens module during movement, and eliminating errors caused by transmission gaps. The visual inspection mechanism is equipped with a liftable inspection lens module, which integrates a refractive lens and a special supplementary lighting component, effectively suppressing the interference of reflections on the workpiece surface and ensuring clear and distinctive inspection images are captured under complex lighting conditions. Through precise positioning multi-dimensional motion and optical optimization design, this equipment significantly improves inspection efficiency and accuracy, providing reliable technical support for the quality control of radiator products. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the visual inspection equipment for radiators according to this utility model; Figure 2 for Figure 1 A first structural diagram of a radiator after some components have been hidden using a visual inspection device; Figure 3 for Figure 1 A second structural diagram of the radiator after some components have been hidden using a visual inspection device; Figure 4 for Figure 2 A schematic diagram of the structure of the visual inspection mechanism in the diagram; Figure 5 for Figure 4 An exploded view of the structure of a visual inspection mechanism.

[0016] Numbering on the map: 10-Rack; 20-Workpiece transfer mechanism; 21-First linear drive assembly; 211-First drive motor; 212-First transmission screw; 213-First transmission nut; 22-Bearing plate; 221-Connecting hole; 23-First slide rail; 24-First slider; 30 - Visual inspection agencies; 31-Gantry frame; 32-Second linear drive assembly; 321-Second drive motor; 322-Second transmission screw; 323-Second transmission nut; 324-Sliding seat; 325-Second slide rail; 326-Second slider; 33-Lifting assembly; 331-Screw slide; 332-Support plate; 333-Position sensor; 34-Detection lens module; 35-Housing shell; 351-Detection port; 36-Optical detection lens; 361-Automatic zoom module; 37-Optical control component; 371-Housing shell; 372-Ingress port; 373-Outgress port. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figures 1 to 5 As shown, this utility model discloses a visual inspection device for radiators, including a frame 10, a workpiece transfer mechanism 20, and a visual inspection mechanism 30. The processed workpiece is placed in the workpiece transfer mechanism 20, which adjusts the workpiece's position via linear sliding. The visual inspection mechanism 30 precisely aligns with the area to be inspected through multi-degree-of-freedom motion and acquires images of the hole positions and processing features on the workpiece surface, thereby achieving automated visual inspection of the radiator's processing quality.

[0021] Please see Figures 1 to 3 The workpiece transfer mechanism 20 includes a first linear drive assembly 21 fixed to the frame 10 and a support plate 22 driven and connected to the first linear drive assembly 21. The first linear drive assembly 21 drives the support plate 22 to reciprocate along a first direction, thereby achieving precise feeding and positioning of the workpiece to be measured. The first direction is... Figure 2 The X direction in the equation.

[0022] Specifically, the first linear drive assembly 21 includes a first drive motor 211 and a first transmission screw 212 connected by a drive connection. A first transmission nut 213, screwed to the first transmission screw 212, is fixedly provided at the bottom of the support plate 22. The first drive motor 211 drives the first transmission screw 212 to rotate, thereby causing the support plate 22 to reciprocate along the axial direction of the first transmission screw 212, achieving one-dimensional precise transport of the workpiece in the horizontal direction. To further ensure smooth movement and load-bearing rigidity, two first slide rails 23 are provided on both sides of the first transmission screw 212, arranged parallel to it. A first slider 24 is slidably connected to the first slide rail 23, and the first slider 24 is fixedly connected to the support plate 22. Through the constraint of the slider and the slide rail, the support plate 22 is effectively prevented from shifting or jamming during movement, ensuring the accuracy of workpiece displacement and repeatability.

[0023] Specifically, the support plate 22 is provided with multiple connection holes 221 for structural connection, which facilitates the installation of various clamps or positioning pins to adapt to the quick clamping and fixing of radiator workpieces of different specifications, thereby improving the overall flexibility of the equipment.

[0024] Please see Figure 4 and Figure 5 The visual inspection mechanism 30 includes a gantry 31 fixed to the frame 10, a second linear drive assembly 32 fixed to the gantry 31, a lifting assembly 33 connected to the second linear drive assembly 32, and a detection lens module 34 connected to the lifting assembly 33. The second linear drive assembly 32 drives the detection lens module 34 to reciprocate along a second direction, wherein the first direction and the second direction are perpendicular to each other, and the second direction is... Figure 2 The Y-direction in the system together constitutes a planar scanning motion system covering the entire surface of the workpiece.

[0025] Specifically, the second linear drive assembly 32 includes a second drive motor 321, a second transmission screw 322 driven by the second drive motor 321, a second transmission nut 323 screwed to the second transmission screw 322, and a sliding seat 324 fixedly connected to the second transmission nut 323. The lifting assembly 33 is fixed on the sliding seat 324 and driven by the second drive motor 321 through the second transmission screw 322, driving the entire optical system to move precisely along the second direction. To enhance motion stability, the gantry 31 is provided with a horizontally arranged second slide rail 325, and a second slider 326 is slidably connected to the second slide rail 325. The second slider 326 is fixedly connected to the sliding seat 324. This structure effectively suppresses motion vibration and ensures the stability of the lens during image acquisition.

[0026] Specifically, the lifting assembly 33 includes a lead screw slide 331 and a support plate 332 connected by a drive, and the lens detection module is fixed on the support plate 332. A position sensor 333 is fixedly provided on the side of the lead screw slide 331 to sense and provide feedback on the lifting height in real time, so as to realize closed-loop control of the focusing position and ensure that features at different heights can be clearly imaged.

[0027] Specifically, the inspection lens module 34 includes a housing 35, an optical inspection lens 36, and an optical control assembly 37. The bottom of the housing 35 has an inspection port 351. The optical inspection lens 36 is vertically mounted inside the housing 35, with its inspection end facing the inspection port 351, for acquiring image information from the workpiece surface. The optical control assembly 37 is located at the inspection port 351 and is used to optimize the imaging optical path and ambient lighting conditions.

[0028] Furthermore, the optical control component 37 includes a housing 371, with an entrance aperture 372 and an exit aperture 373 at its upper and lower ends, respectively. A refractive lens is housed within the housing 371, positioned between the entrance aperture 372 and the exit aperture 373, for adjusting the light path. A supplementary lighting component is located on the side of the refractive lens, providing uniform and stable illumination as needed for inspection, effectively suppressing reflections from the metal surface. The optical inspection lens 36 includes an automatic zoom module 361, which automatically adjusts the focal length according to changes in the workpiece surface height, ensuring image clarity under different depth-of-field conditions. This design significantly improves the equipment's adaptability to complex three-dimensional feature surfaces, ensuring the accuracy and consistency of the inspection results.

[0029] Compared to existing technologies, the visual inspection equipment for radiators involved in this utility model achieves high-precision and high-efficiency automated visual inspection of the hole positions and processing features of radiator workpieces through the coordinated operation of the workpiece transfer mechanism 20 and the visual inspection mechanism 30. The equipment adopts a mutually perpendicular dual linear drive structure, in which both the first linear drive component 21 and the second linear drive component 32 adopt high-precision screw transmission mechanisms, effectively ensuring the positioning accuracy and stability of the carrier plate 22 and the inspection lens module 34 during the movement process, and eliminating errors caused by transmission gaps. The visual inspection mechanism 30 is equipped with a liftable inspection lens module 34, which integrates a refractive lens 374 and a special supplementary lighting component 375, which can effectively suppress the interference of reflection on the workpiece surface and ensure that clear and distinctive inspection images are captured under complex lighting conditions. Through precise positioning multi-dimensional motion and optical optimization design, this equipment significantly improves inspection efficiency and accuracy, providing reliable technical support for the quality control of radiator products.

[0030] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A visual inspection device for radiators, characterized in that, include: frame; A workpiece transfer mechanism, comprising a first linear drive assembly fixed to the frame and a support plate driven and connected to the first linear drive assembly; the first linear drive assembly drives the support plate to reciprocate along a first direction. and A visual inspection mechanism includes a gantry fixed to the frame, a second linear drive assembly fixed to the gantry, a lifting assembly connected to the second linear drive assembly, and a detection lens module connected to the lifting assembly; the second linear drive assembly drives the detection lens module to reciprocate along a second direction. Wherein, the first direction and the second direction are perpendicular to each other; The second linear drive assembly includes a second drive motor, a second transmission screw driven by the second drive motor, a second transmission nut screwed to the second transmission screw, and a sliding seat fixedly connected to the second transmission nut; the lifting assembly is fixed on the sliding seat. The gantry frame is provided with a second slide rail arranged horizontally, and a second slider is provided on the second slide rail and slidably connected thereto. The second slider is fixedly connected to the sliding seat. The lifting assembly includes a lead screw slide and a support plate connected by a drive, and the lens detection module is fixed on the support plate; a position sensor is fixedly provided on the side of the lead screw slide, and the position sensor is used to sense the lifting height; The detection lens module includes a housing, an optical detection lens, and an optical control component; the bottom of the housing is provided with a detection port, the optical detection lens is placed vertically with the detection end facing the detection port, and the optical control component is located at the detection port; The optical control component includes a housing, with an entrance hole and an exit hole at the upper and lower ends of the housing, respectively; a refractive lens is provided inside the housing, and the refractive lens is located between the entrance hole and the exit hole; a supplementary light component is provided on the side of the refractive lens.

2. The visual inspection device for radiators according to claim 1, characterized in that, The first linear drive assembly includes a first drive motor and a first transmission screw connected in a drive connection; the bottom of the support plate is fixedly provided with a first transmission nut that is screwed to the first transmission screw; the first drive motor drives the first transmission screw to rotate, so as to drive the support plate to reciprocate along the axial direction of the first transmission screw.

3. The visual inspection device for radiators according to claim 2, characterized in that, The first transmission screw has two parallel slide rails on both sides, and a first slider is slidably connected to the first slide rail. The first slider is fixedly connected to the support plate.

4. The visual inspection device for radiators according to claim 1, characterized in that, The optical inspection lens includes an automatic zoom module.

5. The visual inspection device for radiators according to claim 1, characterized in that, The support plate is provided with multiple connection holes for structural connection.

Images