A device for detecting the flatness of the cut surface of a polyhedral prism

Abstract

This utility model discloses a device for detecting the flatness of a polyhedral prism's cut surface, specifically relating to the field of flatness detection technology. It includes a base, a two-dimensional translation stage fixedly connected to the top of the base, a white light interferometer mounted on the front side of the translation stage, and a limiting component and a cleaning mechanism mounted above the base. The limiting component includes a placement stage fixedly connected to the top of the base. Two sliding grooves are formed on the upper surface of the placement stage, and a first electric push rod is installed inside the placement stage. A movable plate is fixedly connected to the output end of the first electric push rod, and the movable plate is slidably connected to the inner sides of the two sliding grooves. By setting the limiting component and the cleaning mechanism, this utility model can maintain the same position for different surfaces during detection, reducing detection data errors caused by clamping deviations. An electrostatic brush is used to adsorb dust on the surface of the polyhedral prism and neutralize static electricity, reducing interference from dust adsorption during flatness detection.

Description

Technical Field

[0001] This utility model relates to the field of flatness detection technology, and more specifically, to a device for detecting the flatness of a polyhedral prism cutting surface. Background Technology

[0002] A polyhedral prism is an optical element made of transparent materials (such as glass, crystal, plastic, etc.). Its core feature is that it has multiple planar reflective or refracting surfaces, and through a precisely designed geometric structure, it can achieve functions such as deflection, dispersion, beam splitting, or imaging of light.

[0003] In practical use, regular hexagonal prisms usually need to be inspected on more than three cut faces. Some inspection devices use opposing moving clamping mechanisms to clamp the prism, but they can only inspect a single face. After inspection, they need to be repeatedly disassembled, resulting in low inspection efficiency. Moreover, re-clamping cannot guarantee that the clamping position is the same each time, which will cause errors in the inspection position. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device for detecting the flatness of the cut surface of a polyhedral prism, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for detecting the flatness of a polyhedral prism cutting surface includes a base, a two-dimensional translation stage fixedly connected to the top of the base, a white light interferometer disposed on the front side of the two-dimensional translation stage, and a limit component and a cleaning mechanism disposed above the base.

[0007] The limiting component includes a placement platform, which is fixedly connected to the top of the base. Two sliding grooves are formed on the upper surface of the placement platform. A first electric push rod is installed inside the placement platform. A movable plate is fixedly connected to the output end of the first electric push rod. The movable plate is slidably connected to the inner side of the two sliding grooves. A second clamping plate is rotatably connected to one side of the movable plate. A servo motor is fixedly connected to one side of the placement platform. A first gear is fixedly connected to the output end of the servo motor. A second gear meshes with the top of the first gear. The second gear is rotatably connected to the interior of the placement platform. A first clamping plate is fixedly connected to one side of the second gear. Both the first and second clamping plates have polygonal grooves on one side, and multiple suction cups are fixedly connected to the inner side of the polygonal grooves.

[0008] By adopting the above technical solution, different faces of a regular hexagonal prism can be continuously flipped while maintaining consistent flipping positions, which helps improve detection accuracy.

[0009] As a further description of the above technical solution: the cleaning mechanism includes a stepper motor, which is fixedly connected to one side of the base. A lead screw is fixedly connected to the output end of the stepper motor. The lead screw is rotatably connected to the inside of the base. A movable frame is threadedly connected to the outside of the lead screw. The movable frame is slidably connected to the inside of the base. A guide rod is slidably connected inside the movable frame. The guide rod is fixedly connected to the inside of the base. A second electric push rod is installed inside the guide rod. A limit ring is fixedly connected to the output end of the second electric push rod. An electrostatic brush is fixedly connected to one side of the limit ring.

[0010] By adopting the above technical solution, the electrostatic brush can neutralize the static electricity on the surface of the regular hexagonal prism and adsorb dust, thereby helping to ensure the accuracy of the test.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. By setting a limiting component, compared with the existing technology, the inner side of the polygonal groove can adapt to regular hexagonal prisms of different shapes, so that the meshing between gears can stably rotate the regular hexagonal prisms and keep different faces in the same position during inspection, reducing the error in inspection data caused by clamping deviation, and reducing repeated clamping operations, which helps to improve inspection efficiency.

[0013] 2. By setting up a cleaning mechanism, compared with the existing technology, the servo motor drives the first gear to rotate while the electrostatic brush adsorbs dust on the surface of the regular hexagonal prism and neutralizes the static electricity. This reduces the interference of dust adsorption with flatness detection and helps to ensure detection accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the rear structure of the base of this utility model.

[0016] Figure 3 This is a cross-sectional view of the base structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the rotating platform structure of this utility model.

[0018] Figure 5 This is a cross-sectional view of the rotating table of this utility model.

[0019] Figure 6 This is a schematic diagram of the movable plate structure of this utility model.

[0020] The attached diagram is labeled as follows: 1. Base; 2. Two-dimensional translation stage; 3. White light interferometer; 5. Placement stage; 6. Slide groove; 7. First electric push rod; 8. Movable plate; 9. Servo motor; 10. First gear; 11. Second gear; 12. First clamping plate; 13. Polygonal groove; 14. Suction cup; 15. Stepper motor; 16. Lead screw; 17. Movable frame; 18. Guide rod; 19. Second electric push rod; 20. Limiting ring; 21. Electrostatic brush; 22. Second clamping plate. Detailed Implementation

[0021] 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.

[0022] The embodiments disclosed in this application are as follows: Figure 1-6 The device for detecting the flatness of the cut surface of a polyhedral prism includes a base 1, a two-dimensional translation stage 2 fixedly connected to the top of the base 1, a white light interferometer 3 arranged in front of the two-dimensional translation stage 2, and a limit component and a cleaning mechanism arranged above the base 1.

[0023] The limiting assembly includes a placement platform 5, which is fixedly connected to the top of the base 1. Two sliding grooves 6 are formed on the upper surface of the placement platform 5. A first electric push rod 7 is installed inside the placement platform 5. A movable plate 8 is fixedly connected to the output end of the first electric push rod 7. The movable plate 8 is slidably connected to the inner side of the two sliding grooves 6. A second clamping plate 22 is rotatably connected to one side of the movable plate 8. A servo motor 9 is fixedly connected to one side of the placement platform 5. A first gear 10 is fixedly connected to the output end of the servo motor 9. A second gear 11 meshes with the top of the first gear 10. The second gear 11 is rotatably connected to the interior of the placement platform 5. A first clamping plate is fixedly connected to one side of the second gear 11. 12. Both the first clamping plate 12 and the second clamping plate 22 have polygonal grooves 13 on one side. Multiple suction cups 14 are fixedly connected to the inner side of the polygonal grooves 13. The cross-section of the inner side of the polygonal grooves 13 can accommodate polyhedral prisms of different shapes, and can limit the two ends of the polyhedral prisms. The first electric push rod 7 pulls the movable plate 8 to move, so that the first clamping plate 12 and the second clamping plate 22 can be clamped. The servo motor 9 drives the first gear 10 to mesh with the second gear 11 to rotate, so as to stably drive the regular hexagonal prism to rotate and keep different faces in the same position during detection, which is beneficial to improving detection accuracy.

[0024] Reference Figure 3As shown, the cleaning mechanism includes a stepper motor 15, which is fixedly connected to one side of the base 1. A lead screw 16 is fixedly connected to the output end of the stepper motor 15. The lead screw 16 is rotatably connected to the inside of the base 1. A movable frame 17 is threadedly connected to the outside of the lead screw 16. The movable frame 17 is slidably connected to the inside of the base 1. A guide rod 18 is slidably connected inside the movable frame 17. The guide rod 18 is fixedly connected to the inside of the base 1. A second electric push rod 19 is installed inside the guide rod 18. A limit ring 20 is fixedly connected to the output end of the second electric push rod 19. An electrostatic brush 21 is fixedly connected to one side of the limit ring 20. The guide rod 18 can be moved by the lead screw 16 through the thread. Under the action of the stepper motor 15, the guide rod 18 can reciprocate. The second electric push rod 19 can push the arc-shaped electrostatic brush 21 to contact the rotating regular hexagonal prism, which can adsorb surface dust and neutralize static electricity, reducing the interference of dust with flatness detection due to electrostatic adsorption.

[0025] Working principle of this utility model: This utility model designs a device for detecting the flatness of the cut surface of a polyhedral prism. The specific structure is shown in the attached instruction manual. Figure 1-6 As shown, in this technical solution, through the cooperation between various structures, when it is necessary to inspect a regular hexagonal prism, the regular hexagonal prism is first inserted into the polygonal groove 13, and the hexagonal corners of the regular hexagonal prism are aligned with the inner side of the polygonal groove 13. Then, the first electric push rod 7 is activated, and the first electric push rod 7+ pulls the movable plate 8 to move. The bottom end of the movable plate 8 is slidably connected to the inner side of the slide groove 6, so that the movable plate 8 can stably drive the second clamping plate 22 to move, so that the other end of the regular hexagonal prism can be inserted into the polygonal groove 13 inside the second clamping plate 22. The first clamping plate 12 and the second clamping plate 22 clamp the prism, so that the multiple suction cups 14 can fit against both ends of the regular hexagonal prism, thereby clamping and limiting the regular hexagonal prism. Then, the servo motor 9 is activated, and the servo motor 9 drives the first gear 10 to rotate, so that the first gear 10 can mesh and drive the second gear 11 to rotate. The first clamping plate 12 is activated so that the second gear 11 can drive the regular hexagonal prism to rotate. Then, the stepper motor 15 and the second electric push rod 19 are activated simultaneously. The second electric push rod 19 pushes the limiting ring 20 to drive the electrostatic brush 21 to adhere to the surface of the regular hexagonal prism. The stepper motor 15 can drive the lead screw 16 to rotate. The lead screw 16 can drive the guide rod 18 to reciprocate through the thread so that the guide rod 18 can drive the electrostatic brush 21 to reciprocate. This can adsorb dust on the surface of the rotating regular hexagonal prism, thereby cleaning the regular hexagonal prism. Then, the two-dimensional translation stage 2 is activated so that the two-dimensional translation stage 2 can drive the white light interferometer 3 to move, so as to complete the flatness detection of the cut surface of the regular hexagonal prism. After one surface is detected, the servo motor 9 is activated again. The first gear 10 and the second gear 11 mesh to complete the flipping of the regular hexagonal prism.

[0026] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0027] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures and will not be described here.

[0028] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for detecting flatness of a cutting surface of a polygonal prism, comprising a base (1), characterized in that: A two-dimensional translation stage (2) is fixedly connected to the top of the base (1), a white light interferometer (3) is provided on the front side of the two-dimensional translation stage (2), and a limit component and a cleaning mechanism are provided above the base (1). The limiting component includes a placement platform (5), which is fixedly connected to the top of the base (1). Two sliding grooves (6) are opened on the upper surface of the placement platform (5). A first electric push rod (7) is installed inside the placement platform (5). A movable plate (8) is fixedly connected to the output end of the first electric push rod (7). The movable plate (8) is slidably connected to the inner side of the two sliding grooves (6).

2. The polyhedral prism cut surface flatness detection device according to claim 1, characterized by: The movable plate (8) is rotatably connected to a second clamping plate (22) on one side, and a servo motor (9) is fixedly connected to one side of the placement platform (5). The output end of the servo motor (9) is fixedly connected to a first gear (10), and a second gear (11) meshes with the top of the first gear (10). The second gear (11) is rotatably connected to the inside of the placement platform (5).

3. The apparatus for detecting flatness of a facet of a polyhedral prism cut according to claim 2, wherein: The second gear (11) is fixedly connected to a first clamping plate (12) on one side. Both the first clamping plate (12) and the second clamping plate (22) have polygonal grooves (13) on one side. Multiple suction cups (14) are fixedly connected to the inside of the polygonal grooves (13).

4. The apparatus for detecting flatness of a facet of a polyhedral prism cut according to claim 1, wherein: The cleaning mechanism includes a stepper motor (15), which is fixedly connected to one side of the base (1).

5. The apparatus for detecting flatness of a facet of a polyhedral prism cut according to claim 4, wherein: The output end of the stepper motor (15) is fixedly connected to a lead screw (16), and the lead screw (16) is rotatably connected to the base (1).

6. The polyhedral prism cut facet flatness detection apparatus according to claim 5, characterized by: The lead screw (16) is threaded to the outside of a movable frame (17), which is slidably connected to the inside of the base (1). A guide rod (18) is slidably connected inside the movable frame (17), and the guide rod (18) is fixedly connected to the inside of the base (1).

7. The device for detecting the flatness of the cut surface of a polyhedral prism according to claim 6, characterized in that: The guide rod (18) is equipped with a second electric push rod (19), and the output end of the second electric push rod (19) is fixedly connected to a limit ring (20). An electrostatic brush (21) is fixedly connected to one side of the limit ring (20).

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