A testing device for finished optical filters
The positioning system driven by a motor and lead screw solves the problem of unstable limit positioning in the finished filter inspection equipment, realizing stable limit positioning and accurate detection of filters, and improving the reliability and efficiency of inspection data.
Patent Information
- Application Number
- CN202522560508.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-02
AI Technical Summary
Existing filter product testing equipment lacks a limiting and fixing mechanism, which makes the filter prone to displacement due to external interference or equipment vibration during the testing process, affecting the reliability of the test data.
The positioning system, driven by a motor and lead screw, uses an electric cylinder and an auxiliary rod to achieve stable positioning of the filter. The motor drives the lead screw to rotate, precisely moving the filter below the detection head and ensuring that the detection head is accurately aligned with the filter.
This effectively prevents the filter from shifting during the testing process, ensuring the accuracy and reliability of the test data, and significantly shortening the test preparation time.
Smart Images

Figure CN224945896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter testing technology, specifically a testing device for finished filter products. Background Technology
[0002] The testing equipment for finished optical filters is a mechanical device that integrates optical sensing components, positioning and clamping mechanisms, and data processing modules to accurately detect key indicators such as transmittance, spectral characteristics, and surface defects of finished optical filters. It can realize automated screening and judgment of the quality of finished optical filters.
[0003] Currently, most existing filter product testing equipment does not have a dedicated limiting and fixing mechanism. During the testing process, the filter is prone to displacement and shaking due to external interference or equipment vibration, which leads to deviations in the test data collected by the optical sensing components, thus affecting the reliability of the test results. In view of this, we propose a testing equipment for finished filter products. Utility Model Content
[0004] The main objective of this invention is to provide a testing device for finished optical filters that can solve the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model proposes a testing device for finished filters, comprising a workbench, a fixed frame fixedly connected above the workbench, a connecting seat fixedly connected to the side wall of the fixed frame, a positioning rod fixedly connected to the inner wall of the connecting seat, a lead screw rotatably connected to the inner wall of the connecting seat, a motor fixedly connected to the outer wall of the connecting seat, the output end of the motor fixedly connected to the lead screw, a movable block threadedly connected to the lead screw, the movable block slidably connected to the positioning rod, a connecting plate fixedly connected to the side wall of the movable block, a sliding groove provided on the side wall of the connecting plate, a sliding seat slidably connected to the sliding groove, and an adjustment mechanism provided on the sliding seat, the adjustment mechanism comprising a fixed plate fixedly connected to the side wall of the sliding seat.
[0006] Preferably, a detection head is provided below one side of the fixing plate, and auxiliary rods are fixedly connected to both side walls of the fixing plate.
[0007] Preferably, a connecting seat two is fixedly connected above the workbench, a positioning rod two is fixedly connected inside the connecting seat two, a lead screw two is rotatably connected to the inner wall of the connecting seat two, and a motor one is fixedly connected to the outer wall of the connecting seat two, with the output end of the motor one being fixedly connected to the lead screw two.
[0008] Preferably, the lead screw is threadedly connected to a movable plate, and the movable plate is slidably connected to the positioning rod.
[0009] Preferably, the movable plate is provided with a placement slot.
[0010] Preferably, a second fixed plate and a long plate are fixedly connected to the movable plate, a round rod is fixedly connected to the second fixed plate, an auxiliary block is rotatably connected to the round rod, a second sliding groove is provided on the side wall of the long plate, an L-shaped plate is slidably connected to the second sliding groove, an auxiliary plate is fixedly connected to the side wall of the long plate, the auxiliary plate and the L-shaped plate are connected by a spring, the lower part of the L-shaped plate is hinged to the auxiliary block, a limit block is hinged to the lower end of the auxiliary block, and a first sliding groove is provided on the movable plate, which is slidably connected to the limit block.
[0011] Preferably, an electric cylinder is installed above the connecting plate, and the electric cylinder is fixedly connected to the sliding seat through its output end. When the sliding seat is driven to move downward by the electric cylinder, the auxiliary rod will move downward simultaneously. The auxiliary rod touches the L-shaped plate and moves downward, thereby driving the auxiliary block to rotate. With the cooperation of the sliding groove, the limiting block is pushed to move towards the edge of the placement groove, thereby stabilizing and limiting the filter, effectively preventing the filter from shifting during the detection process, and ensuring accurate and reliable detection data. By starting the motor, the lead screw rotates, and with the cooperation of the positioning rod, the movable plate moves laterally, thereby accurately transferring the filter in the placement groove to below the detection head. Then, the motor drives the lead screw to rotate, and with the cooperation of the positioning rod, the connecting plate moves laterally, thereby allowing the detection head to accurately align with the filter, eliminating the need for repeated manual adjustments and significantly shortening the detection preparation time.
[0012] This invention provides a testing device for finished optical filters. It has the following advantages: (1) When the testing equipment for finished filters moves downward by driving the sliding seat with an electric cylinder, it will simultaneously drive the auxiliary rod to move downward. The auxiliary rod touches the L-shaped plate and moves downward, thereby driving the auxiliary block to rotate. With the cooperation of the slide groove, the limiting block is pushed to move towards the edge of the placement groove, thereby stabilizing and limiting the filter, effectively preventing the filter from shifting during the testing process, and ensuring that the test data is accurate and reliable.
[0013] (2) The testing equipment for finished filters drives the first motor to rotate the second lead screw, which in turn drives the movable plate to move laterally with the help of the second positioning rod, thereby accurately transferring the filter in the placement slot to the bottom of the testing head; then the second motor drives the first lead screw to rotate, which in turn moves the connecting plate laterally with the first positioning rod, thereby allowing the testing head to be accurately aligned with the filter, eliminating the need for repeated manual adjustments and greatly shortening the testing preparation time. Attached Figure Description
[0014] 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 the structures shown in these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ; Figure 2 This utility model Figure 1 Schematic diagram of the structure of region A in the middle; Figure 3 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ; Figure 4 This utility model Figure 3 Schematic diagram of the structure of region B in the middle.
[0016] Explanation of icon numbers: 1. Workbench; 2. Fixed frame; 3. Connecting seat one; 4. Positioning rod one; 5. Lead screw one; 6. Movable block; 7. Connecting plate; 8. Sliding seat; 9. Electric cylinder; 10. Adjustment mechanism; 101. Fixed plate one; 102. Detection head; 103. Auxiliary rod; 104. Connecting seat two; 105. Lead screw two; 106. Positioning rod two; 107. Motor one; 108. Movable plate; 109. Placement slot; 1010. Fixed plate two; 1011. Round rod; 1012. Auxiliary block; 1013. Slide groove one; 1014. Limiting block; 1015. L-shaped plate; 1016. Long plate; 1017. Slide groove two; 1018. Spring; 11. Motor two.
[0017] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0018] 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.
[0019] Please see Figures 1-4This utility model proposes a testing device for finished filters, including a workbench 1, a fixed frame 2 fixedly connected above the workbench 1, a connecting seat 3 fixedly connected to the side wall of the fixed frame 2, a positioning rod 4 fixedly connected to the inner wall of the connecting seat 3, a lead screw 5 rotatably connected to the inner wall of the connecting seat 3, a motor 11 fixedly connected to the outer wall of the connecting seat 3, the output end of the motor 11 fixedly connected to the lead screw 5, a movable block 6 threadedly connected to the lead screw 5, the movable block 6 slidably connected to the positioning rod 4, a connecting plate 7 fixedly connected to the side wall of the movable block 6, a sliding groove provided on the side wall of the connecting plate 7, a sliding seat 8 slidably connected to the sliding groove, an adjustment mechanism 10 provided on the sliding seat 8, the adjustment mechanism 10 including a fixed plate 101 fixedly connected to the side wall of the sliding seat 8.
[0020] In this embodiment of the utility model, in order to enable the testing equipment for finished filters to operate better, specifically, a testing head 102 is provided below the fixed plate 101, auxiliary rods 103 are fixedly connected to both side walls of the fixed plate 101, a connecting seat 104 is fixedly connected above the worktable 1, a positioning rod 106 is fixedly connected inside the connecting seat 104, a lead screw 105 is rotatably connected to the inner wall of the connecting seat 104, a motor 107 is fixedly connected to the outer wall of the connecting seat 104, the output end of the motor 107 is fixedly connected to the lead screw 105, a movable plate 108 is threadedly connected to the lead screw 105, the movable plate 108 is slidably connected to the positioning rod 106, and a mounting plate 108 is provided on the movable plate 108. A second fixed plate 1010 and a long plate 1016 are fixedly connected to the slot 109 and the movable plate 108, respectively. A round rod 1011 is fixedly connected to the second fixed plate 1010. An auxiliary block 1012 is rotatably connected to the round rod 1011. A second sliding groove 1017 is provided on the side wall of the long plate 1016. An L-shaped plate 1015 is slidably connected to the sliding groove 1017. An auxiliary plate is fixedly connected to the side wall of the long plate 1016. The auxiliary plate and the L-shaped plate 1015 are connected by a spring 1018. The lower part of the L-shaped plate 1015 is hinged to the auxiliary block 1012. A limit block 1014 is hinged to the lower end of the auxiliary block 1012. A first sliding groove 1013 is provided on the movable plate 108. The first sliding groove 1013 is slidably connected to the limit block 1014.
[0021] Furthermore, an electric cylinder 9 is installed above the connecting plate 7. The electric cylinder 9 is fixedly connected to the sliding seat 8 through its output end. When the sliding seat 8 is driven to move downward by the electric cylinder 9, the auxiliary rod 103 will move downward simultaneously. The auxiliary rod 103 touches the L-shaped plate 1015 and moves downward, thereby driving the auxiliary block 1012 to rotate. With the cooperation of the sliding groove 1013, the limiting block 1014 is pushed to move towards the edge of the placement groove 109, thereby stabilizing and limiting the filter, effectively preventing the filter from shifting during the detection process, and ensuring accurate and reliable detection data. By starting the motor 107, the lead screw 105 is driven to rotate. With the cooperation of the positioning rod 106, the movable plate 108 is driven to move laterally, thereby accurately transferring the filter in the placement groove 109 to below the detection head 102. Then, the lead screw 5 is driven to rotate by the motor 11, which, with the cooperation of the positioning rod 4, moves the connecting plate 7 laterally, thereby allowing the detection head 102 to be accurately aligned with the filter. There is no need for repeated manual adjustment of the position, which greatly shortens the detection preparation time.
[0022] In this invention, during use, the filter to be tested is first placed into the placement slot 109 on the movable plate 108. Then, motor 107 is started, and the output of motor 107 drives lead screw 105 to rotate. With the cooperation of positioning rod 106, the movable plate 108 moves laterally, thereby moving the movable plate 108 and the filter below the detection head 102. Next, motor 11 is started, and the output of motor 11 drives lead screw 5 to rotate. With the cooperation of positioning rod 4, the movable block 6 moves laterally, thereby moving the connecting plate 7 laterally. When the connecting plate 7 moves above the filter, the circuit is closed. Motor 11 starts the electric cylinder 9, and the output end of the electric cylinder 9 moves the sliding seat 8 downward through the sliding groove, so that the detection head 102 approaches the filter and performs detection. At the same time, when the sliding seat 8 moves downward, it will drive the auxiliary rod 103 fixedly connected to it to move downward as well. At this time, the auxiliary rod 103 will touch the L-shaped plate 1015, causing the L-shaped plate 1015 to move downward, thereby causing the auxiliary block 1012 to rotate. With the cooperation of the sliding groove 1013, it will drive the limiting block 1014 to move towards the edge of the placement groove 109, thereby limiting and fixing the filter, effectively ensuring the stability of the filter detection process.
[0023] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. An apparatus for detecting finished optical filters, comprising a worktable (1), characterized in that: A fixed frame (2) is fixedly connected above the workbench (1). A connecting seat (3) is fixedly connected to the side wall of the fixed frame (2). A positioning rod (4) is fixedly connected to the inner wall of the connecting seat (3). A lead screw (5) is rotatably connected to the inner wall of the connecting seat (3). A motor (11) is fixedly connected to the outer wall of the connecting seat (3). The output end of the motor (11) is fixedly connected to the lead screw (5). A movable block (6) is threadedly connected to the lead screw (5). The movable block (6) is slidably connected to the positioning rod (4). A connecting plate (7) is fixedly connected to the side wall of the movable block (6). A sliding groove is provided on the side wall of the connecting plate (7). A sliding seat (8) is slidably connected to the sliding groove. An adjustment mechanism (10) is provided on the sliding seat (8). The adjustment mechanism (10) includes a fixed plate (101). The fixed plate (101) is fixedly connected to the side wall of the sliding seat (8).
2. An apparatus for detecting a finished optical filter according to claim 1, characterized in that: A detection head (102) is provided below the fixing plate (101), and auxiliary rods (103) are fixedly connected to both sides of the fixing plate (101).
3. The apparatus for detecting a filter product according to claim 1, wherein: A connecting seat two (104) is fixedly connected above the workbench (1). A positioning rod two (106) is fixedly connected inside the connecting seat two (104). A lead screw two (105) is rotatably connected to the inner wall of the connecting seat two (104). A motor one (107) is fixedly connected to the outer wall of the connecting seat two (104). The output end of the motor one (107) is fixedly connected to the lead screw two (105).
4. An apparatus for detecting a finished optical filter according to claim 3, characterized in that: The second lead screw (105) is threadedly connected to a movable plate (108), and the movable plate (108) is slidably connected to the second positioning rod (106).
5. An apparatus for detecting a finished optical filter as claimed in claim 4, characterized in that: The movable plate (108) is provided with a placement slot (109).
6. An apparatus for detecting a finished optical filter as defined in claim 4, wherein: Fixed plate two (1010) and long plate (1016) are fixedly connected to the movable plate (108). Fixed plate two (1010) is fixedly connected to a round rod (1011). The round rod (1011) is rotatably connected to an auxiliary block (1012). The side wall of the long plate (1016) is provided with a sliding groove two (1017). The sliding groove two (1017) is slidably connected to an L-shaped plate (1015). The side wall of the long plate (1016) is fixedly connected to an auxiliary plate. The auxiliary plate and the L-shaped plate (1015) are connected by a spring (1018). The lower part of the L-shaped plate (1015) is hinged to the auxiliary block (1012). The lower end of the auxiliary block (1012) is hinged to a limit block (1014). The movable plate (108) is provided with a sliding groove one (1013). The sliding groove one (1013) is slidably connected to the limit block (1014).
7. The apparatus for detecting a filter product according to claim 1, wherein: An electric cylinder (9) is installed above the connecting plate (7), and the electric cylinder (9) is fixedly connected to the sliding seat (8) through its output end.
