Infrared movement core optical axis detection equipment and infrared product production system

Abstract

The utility model belongs to optical axis detection technical field, concretely relates to infrared movement optical axis detection equipment and infrared product production system, including placing platform, target test mechanism and product clamping mechanism, product clamping mechanism sets up on placing platform, product clamping mechanism includes the product moulding fixture for placing infrared movement and the clamping assembly for fixing infrared movement in product moulding fixture, the position of placing platform corresponds infrared movement and is provided with through -hole, target test mechanism sets up below placing platform and is directly opposite through -hole. The utility model can detect whether the optical axis of infrared movement is qualified before the installation of infrared movement, thereby solving the problem before the assembly of whole machine, not only can reduce use and maintenance cost, but also can improve the bad product leak detection rate of product better, thereby improving product delivery yield.

Description

Technical Field

[0001] This utility model belongs to the field of optical axis detection technology, specifically relating to an infrared core optical axis detection device and an infrared product production system. Background Technology

[0002] Due to dimensional and assembly tolerances, different infrared module components will exhibit varying optical axis deviations after assembly, leading to optical axis misalignment. Currently, manual assembly is required to align the finished product with a target image to determine if the infrared module component is within the visible offset range, thus judging product quality; alternatively, the image must be compared with that of the customer's infrared lens to observe consistency. If defects are found, disassembly and repair are necessary. Since post-assembly inspection and rework are costly, it is necessary to design an infrared module optical axis inspection device to inspect and determine product quality before assembly, thereby resolving potential problems before final assembly and reducing usage and maintenance costs. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an infrared core optical axis detection device and an infrared product production system, which can quickly detect whether the optical axis of the product is qualified before the infrared core is installed, thereby reducing the cost of use and maintenance.

[0004] To achieve the above objectives, the technical solution of this utility model is an infrared core optical axis detection device, including a placement platform, a target testing mechanism, and a product clamping mechanism. The product clamping mechanism is disposed on the placement platform and includes a product fixture for placing the infrared core and a clamping component for fixing the infrared core in the product fixture. A through hole is provided on the placement platform at the position corresponding to the infrared core, and the target testing mechanism is disposed below the placement platform and directly opposite the through hole.

[0005] As one embodiment, the clamping assembly includes a chuck for clamping the infrared movement, a side pusher for moving the chuck toward the infrared movement, and a pressing member for moving the chuck downward. The chuck is disposed on the pressing member, the pressing member is disposed on the side pusher, and the side pusher is disposed on the placement platform.

[0006] As one embodiment, the product clamping mechanism further includes a Z-axis adjustment component for adjusting the distance between the infrared core and the target testing mechanism, the product fixture is disposed on the Z-axis adjustment component, and the Z-axis adjustment component is disposed on the placement platform.

[0007] As one embodiment, the Z-axis adjustment assembly includes a product platform, an adjustment platform, and an adjustment component for moving the product platform along the Z-axis direction. The product fixture is fixed on the product platform, the adjustment component is disposed on the adjustment platform, and the adjustment platform is fixed on the placement platform.

[0008] As one embodiment, the product fixture is provided with mounting holes, and the infrared sensor is installed in the mounting holes; through holes are provided on the product platform and the adjustment platform at positions corresponding to the infrared sensor.

[0009] As one embodiment, the adjustment assembly includes a plurality of Z-axis adjustment screws, which are arranged at intervals along the through holes on the product platform, and one end of each Z-axis adjustment screw is connected to the product platform, and the other end is threadedly connected to the adjustment platform.

[0010] As one embodiment, the target testing mechanism includes a heated target assembly and a movable assembly for adjusting the position of the heated target assembly; the heated target assembly is disposed on the movable assembly.

[0011] As one embodiment, the heated target assembly includes a target plate, a fixed platform, and a target heating platform. The target heating platform is fixed to the bottom surface of the target plate. The target plate and the target heating platform are mounted on the fixed platform via target support columns. The fixed platform is mounted on the movable component.

[0012] As one implementation method, a protective cover is provided on the placement platform, and the product clamping mechanism is disposed inside the protective cover.

[0013] This utility model also provides an infrared product manufacturing system, including an MTF testing station, an optical axis detection station, and a finished product assembly station. The MTF testing station is equipped with an infrared core MTF testing device, the optical axis detection station is equipped with an infrared core optical axis detection device as described above, and the finished product assembly station is equipped with a finished product assembly device for assembling the infrared core and infrared lens into a finished product.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) This utility model can quickly detect whether the optical axis is qualified before the infrared core is installed, thus solving the problem before the whole machine is assembled. It can not only reduce the cost of use and maintenance, but also improve the defect rate of the product, thereby improving the product delivery yield.

[0016] (2) The device of this utility model is simple to operate, highly practical, and has a wide range of applications, and can meet the optical axis offset detection of most infrared cores;

[0017] (3) The equipment of this utility model has low manufacturing cost and can be applied to the optical axis detection of various products. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A perspective view of the infrared optical axis detection device for the present invention;

[0020] Figure 2 A side view of the infrared optical axis detection device provided in an embodiment of this utility model;

[0021] Figure 3 A schematic diagram of the detection principle of the infrared optical axis detection device provided in this embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the product clamping mechanism provided in this embodiment of the utility model;

[0023] Figure 5 An exploded view of the product clamping mechanism provided in an embodiment of this utility model;

[0024] Figure 6 A schematic diagram of the target testing mechanism provided in this embodiment of the utility model;

[0025] Figure 7 An exploded view of the target testing mechanism provided in this embodiment of the utility model;

[0026] In the diagram: 1. Chassis; 11. Sheet metal protective cover; 12. Temperature controller display screen; 13. Human-machine interface; 14. Acrylic protective cover; 15. Operating switch; 16. Acrylic sheet metal door; 17. Electrical control box; 2. Placement platform; 3. Product clamping mechanism; 31. Product jig; 311. Mounting hole; 32. Clamping assembly; 321. Chuck; 322. Pressing component; 323. Fixing plate; 324. Side push component; 33. Z 331. Axis adjustment assembly; 332. Product stage; 333. Adjustment platform; 334. Z-axis adjustment screw; 335. Through hole; 336. Base plate; 37. First base; 4. Infrared sensor; 5. Target testing mechanism; 51. Target plate; 52. Fixing platform; 53. Target heating platform; 54. Target support column; 55. XY adjustable cross slide; 56. Second base; 6. Server; 7. Host computer; 8. Industrial control computer. Detailed Implementation

[0027] 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 scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] like Figures 1-2 As shown, this embodiment provides an infrared core optical axis detection device, including a placement platform 2, a target testing mechanism 5, and a product clamping mechanism 3. The product clamping mechanism 3 is disposed on the placement platform 2 and includes a product fixture 31 for placing the infrared core 4 and a clamping component 32 for fixing the infrared core 4 in the product fixture 31. A through hole 334 is provided on the placement platform 2 at the position corresponding to the infrared core 4. The target testing mechanism 5 is disposed below the placement platform 2 and directly opposite the through hole 334. This embodiment can quickly detect whether the optical axis of the infrared core 4 is qualified before it is installed in the machine, thereby solving the problem before assembling the whole machine. This not only reduces the cost of use and maintenance but also improves the product defect rate, thereby increasing the product yield. By fixing the infrared core 4 in the product fixture 31 through the clamping component 32, it is possible to prevent the infrared core 4 from shaking in the product fixture 31 during the test, thereby accurately simulating the locking action of the product in the finished product assembly and improving the accuracy and reliability of subsequent tests.

[0031] In some embodiments, the clamping assembly 32 includes a chuck 321 for clamping the infrared movement 4, a side pusher 324 for moving the chuck 321 toward the infrared movement 4, and a pressing member 322 for moving the chuck 321 downward. The chuck 321 is disposed on the pressing member 322, the pressing member 322 is disposed on the side pusher 324, and the side pusher 324 is disposed on the placement platform 2. The side pusher 324 can drive the chuck 321 to clamp the infrared movement 4 from the side, and the pressing member 322 can drive the chuck 321 downward to press the infrared movement 4 into the product fixture 31, ensuring that the infrared movement 4 is securely fixed in the product fixture 31.

[0032] Specifically, the side pusher 324 can be a side pusher cylinder to allow the chuck 321 to move in the X-axis direction; the pressing member 322 can be a pressing cylinder to allow the chuck 321 to press in the Z-axis direction; and the chuck 321 is connected to the drive end of the pressing cylinder, the fixed end of the pressing cylinder is fixed on the fixed plate 323, the drive end of the side pusher cylinder is connected to the fixed plate 323, and the fixed end of the side pusher cylinder is fixed on the placement platform 2.

[0033] In some embodiments, the product clamping mechanism 3 further includes a Z-axis adjustment component 33 for adjusting the distance between the infrared sensor 4 and the target testing mechanism 5. The product fixture 31 is mounted on the Z-axis adjustment component 33, which is mounted on the placement platform 2. The distance between the infrared sensor 4 fixture and the target testing mechanism 5 can be adjusted via the Z-axis adjustment component 33, allowing the standard prototype to clearly see the target image.

[0034] In some embodiments, the Z-axis adjustment assembly 33 includes a product stage 331, an adjustment platform 332, and an adjustment component for moving the product stage 331 along the Z-axis direction. The product fixture 31 is fixed on the product stage 331, the adjustment component is disposed on the adjustment platform 332, and the adjustment platform 332 is fixed on the placement platform 2. By moving the product stage 331 along the Z-axis direction with the adjustment component, the distance between the product stage 331 and the adjustment platform 332 can be adjusted, thereby adjusting the distance between the infrared sensor 4 and the target testing mechanism 5.

[0035] like Figure 4 and Figure 5As shown, the product fixture 31 is provided with mounting holes 311, and the infrared sensor 4 is installed in the mounting holes 311; through holes 334 are provided on the product stage 331 and the adjustment platform 332 at positions corresponding to the infrared sensor 4. In this embodiment, the mounting holes 311 on the product fixture 31 correspond vertically to the through holes 334 on the product stage 331, the adjustment platform 332, and the placement platform 2, ensuring that the infrared sensor 4 can observe target imaging.

[0036] Furthermore, the adjustment assembly includes a plurality of Z-axis adjusting screws 333, which are spaced apart along the through holes 334 on the product platform 331. One end of each Z-axis adjusting screw 333 is connected to the product platform 331, and the other end is threadedly connected to the adjustment platform 332. The distance between the product platform 331 and the adjustment platform 332 can be adjusted by rotating the Z-axis adjusting screws 333. In one embodiment, the adjustment assembly includes four Z-axis adjusting screws 333, which are spaced apart at the four corners along the through holes 334 on the product platform 331. One end of each Z-axis adjusting screw 333 is fixedly connected to the product platform 331, and the other end is threadedly connected to the adjustment platform 332.

[0037] Furthermore, the product clamping mechanism 3 also includes a first base 34, the adjustment platform 332 is disposed on the substrate 335, the side pusher 324 and the substrate 335 are both disposed on the first base 34, and the first base 34 is disposed on the placement platform 2. Even further, through holes 334 are also provided on the first base 34 and the substrate 335 at positions corresponding to the infrared movement 4.

[0038] In some embodiments, the target testing mechanism 5 includes a heated target assembly and a moving component for adjusting the position of the heated target assembly; the heated target assembly is disposed on the moving component. The moving component allows for fine-tuning of the position of the heated target assembly in the X-axis and Y-axis directions, ensuring that the target is coaxial with the central axis of the standard prototype's optical axis, providing a highly accurate reference for subsequent testing. Further, the moving component is an XY adjustable cross slide 55, which is fixed to a second base 56, which is fixed to the base plate of the chassis 1.

[0039] like Figure 6 and Figure 7As shown, the heated target assembly includes a target plate 51, a fixed platform 52, and a target heating platform 53. The target heating platform 53 is fixed to the bottom surface of the target plate 51. The target plate 51 and the target heating platform 53 are mounted on the fixed platform 52 via a target support column 54. The fixed platform 52 is mounted on the moving component. In this embodiment, the target plate 51 and the target heating platform 53 are supported on the fixed platform 52 via the target support column 54. The target heating platform 53 controls the target temperature through a temperature controller to provide an infrared heat source to the target plate 51. After being heated, the target plate 51 emits infrared rays, which serve as a reference infrared image. The moving component moves the fixed platform 52 and the target plate 51 and the target heating platform 53 above it, making the reference infrared image coaxial with the optical axis center axis of the standard prototype.

[0040] In this embodiment, a protective cover is provided on the placement platform 2, and the product clamping mechanism 3 is disposed inside the protective cover. Specifically, the protective cover includes a sheet metal protective cover 11 and an acrylic protective cover 14. The bottom of the sheet metal protective cover 11 is fixed to the placement platform 2, and the top of the acrylic protective cover 14 is hinged to the top of the sheet metal protective cover 11. The bottom of the acrylic protective cover 14 can rotate and rest on the placement platform 2. A temperature controller display screen 12 and a human-machine interface 13 are provided inside the sheet metal protective cover 11. The temperature controller display screen 12 can adjust the target temperature according to the set value, and the human-machine interface 13 can control the product optical axis test through the host computer 7. The acrylic protective cover 14 serves as a safety protection during testing. The product clamping mechanism 3 is disposed inside the acrylic protective cover 14 and is used to fix the infrared movement mechanism 4. An operation switch 15 is provided on the placement platform 2 outside the protective cover, which can control the cylinder movement and the optical axis test of the movement mechanism.

[0041] In some embodiments, the device further includes a chassis 1, the placement platform 2 is fixed to the top surface of the chassis 1, and the target testing mechanism 5 is disposed inside the chassis 1. Figure 1 As shown, the chassis 1 includes a frame, a base plate at the bottom of the frame, side plates and acrylic sheet metal doors 16 on the sides of the frame, and a placement platform 2 on the top of the frame; the target testing mechanism 5 is mounted on the base plate inside the chassis 1. Furthermore, an electrical control box 17 is fixed to the side plate inside the chassis 1, serving as a testing control area; casters and feet are provided at the four corners of the base plate outside the chassis 1.

[0042] The process of checking whether the optical axis of the product is qualified before the infrared sensor 4 is installed using the equipment of this embodiment is as follows:

[0043] First, place the standard prototype of the infrared sensor 4 in the product fixture 31. Adjust the distance between the standard prototype and the target plate 51 using the Z-axis adjustment component 33 so that the standard prototype can clearly see the target image. Fix the standard prototype of the infrared sensor 4 using the clamping component 32. Then, adjust the position of the target plate 51 on the X-axis using the moving component, and then adjust the position of the target plate 51 on the Y-axis to ensure that the target and the optical axis center axis of the standard prototype are coaxial.

[0044] Then, the standard sample is removed, the infrared core 4 to be tested is placed in the product fixture 31 and fixed by the clamping component 32, and the product optical axis is tested using the blackbody target plate 51 as the infrared light source. The optical axis of the infrared product is calculated based on the imaging feature point trajectory calibrated by the host computer 7 to determine whether the optical axis of the infrared product is deviated. The product optical axis is judged to be qualified by the imaging range of the optical axis.

[0045] When the optical axis is not deviated, the mechanical axis of the infrared lens under test coincides with its optical axis, and the imaging feature trajectory in the infrared image obtained by the above detection method is a coincident body. However, in reality, due to the influence of factors such as processing precision and assembly fit, the mechanical axis and optical axis of the lens under test are not coincident and there will be a certain displacement deviation. Therefore, the above detection method can be used to determine whether the single optical axis offset is within the acceptable range of optical axis offset, thereby determining whether the product is qualified.

[0046] This embodiment also provides an infrared product manufacturing system, including an MTF testing station, an optical axis detection station, and a finished product assembly station. The MTF testing station is equipped with an infrared core MTF testing device, the optical axis detection station is equipped with any of the aforementioned infrared core optical axis detection devices, and the finished product assembly station is equipped with finished product assembly equipment for assembling the infrared core and infrared lens into a finished product. The MTF testing station, optical axis detection station, and finished product assembly station are arranged sequentially according to the production order of the infrared product.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An infrared optical axis detection device, characterized in that: The device includes a placement platform, a target testing mechanism, and a product clamping mechanism. The product clamping mechanism is disposed on the placement platform and includes a product fixture for placing the infrared sensor and a clamping component for fixing the infrared sensor in the product fixture. A through hole is provided on the placement platform at the position corresponding to the infrared sensor, and the target testing mechanism is disposed below the placement platform and directly opposite the through hole.

2. The infrared optical axis detection device as described in claim 1, characterized in that: The clamping assembly includes a chuck for clamping the infrared movement, a side pusher for moving the chuck toward the infrared movement, and a pressing member for moving the chuck downward. The chuck is disposed on the pressing member, the pressing member is disposed on the side pusher, and the side pusher is disposed on the placement platform.

3. The infrared optical axis detection device as described in claim 1, characterized in that: The product clamping mechanism also includes a Z-axis adjustment component for adjusting the distance between the infrared core and the target testing mechanism. The product fixture is mounted on the Z-axis adjustment component, which is mounted on the placement platform.

4. The infrared optical axis detection device for a camera mechanism as described in claim 3, characterized in that: The Z-axis adjustment assembly includes a product platform, an adjustment platform, and an adjustment component for moving the product platform along the Z-axis direction. The product fixture is fixed on the product platform, the adjustment component is disposed on the adjustment platform, and the adjustment platform is fixed on the placement platform.

5. The infrared optical axis detection device as described in claim 4, characterized in that: The product fixture is provided with mounting holes, and the infrared sensor is installed in the mounting holes; the product platform and the adjustment platform are provided with through holes at the positions corresponding to the infrared sensor.

6. The infrared optical axis detection device as described in claim 5, characterized in that: The adjustment assembly includes multiple Z-axis adjustment screws, which are arranged at intervals along the through holes on the product platform. One end of each Z-axis adjustment screw is connected to the product platform, and the other end is threadedly connected to the adjustment platform.

7. The infrared optical axis detection device as described in claim 1, characterized in that: The target testing mechanism includes a heated target assembly and a movable assembly for adjusting the position of the heated target assembly; the heated target assembly is disposed on the movable assembly.

8. The infrared optical axis detection device as described in claim 7, characterized in that: The heated target assembly includes a target plate, a fixed platform, and a target heating platform. The target heating platform is fixed to the bottom surface of the target plate. The target plate and the target heating platform are mounted on the fixed platform via target support columns. The fixed platform is mounted on the movable component.

9. The infrared optical axis detection device as described in claim 1, characterized in that: The placement platform is equipped with a protective cover, and the product clamping mechanism is located inside the protective cover.

10. An infrared product manufacturing system, characterized in that: It includes an MTF testing station, an optical axis detection station, and a finished product assembly station. The MTF testing station is equipped with an infrared core MTF testing device. The optical axis detection station is equipped with an infrared core optical axis detection device as described in any one of claims 1-9. The finished product assembly station is equipped with a finished product assembly device for assembling the infrared core and the infrared lens into a finished product.

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