Optical detection device with light supplementing structure

Abstract

The invention relates to the technical field of optical detection, in particular to an optical detection device with a light supplementing structure. The device comprises a shelving part and a detecting part, the shelving part comprises a shelving body and a driving body, the driving body comprises a motor, a reciprocating lead screw and a limiting plate, the detecting part comprises a movable ring body and a light supplementing scanning body, and the movable ring body comprises a winding and sleeving ring, a movable plate and an angle adjusting structure. When the motor drives the reciprocating lead screw to rotate and further drives the rotating disc to rotate to enable the object to rotate, the reciprocating lead screw synchronously drives the winding sleeve ring to move up and down, the height of the light supplementing scanning body can be synchronously changed when the object rotates, and therefore the light supplementing scanning body can conveniently and repeatedly measure the object at different heights. When the movable ring body moves up and down along the limiting plate, the angle adjusting structure drives the movable plate to move up and down, the light supplementing scanning body is driven to rotate through the up-down movement of the movable plate, the angle of the light supplementing scanning body relative to a measured object is adjusted, measurement errors caused by scattered light interference are reduced, and the optical detection precision of the object is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of optical detection, and more specifically, to an optical detection device with a supplementary light structure. Background Art

[0002] Optical detection is a method of detecting and measuring using an optical system. By irradiating and reflecting a sample through optical elements and converting the optical signal into an electrical signal or a mechanical signal, relevant information of the sample can be obtained. According to different detection targets, optical detection can be divided into three categories: appearance detection, dimension detection, and morphology detection.

[0003] When measuring the dimensions of an object such as length, thickness, or the measurement of an irregular surface or contour, there is a problem of scattered light interference, that is, when light is scattered on the surface of the object, interference will be formed. In order to reduce the measurement error caused by scattered light interference, generally, repeated measurements are carried out, and each time the measurement is made, the angle and position of the optical sensor relative to the object to be measured are changed, and then an image processing algorithm is used to correct and remove the scattered light to improve the accuracy of the measurement result.

[0004] When the object to be measured is an object with a complex shape or an unclear edge, supplementary light can enhance the contrast between the object edge and the background, making the edge clearer and distinguishable, which is very important for accurately measuring the dimensions of the object such as length. For example, CN110595386A involves an annular auxiliary supplementary light device. Although this device can achieve omnidirectional supplementary light for an object with an irregular surface by setting a driving rotation unit, a rotating part, and a supplementary light lamp, this device can only make the supplementary light lamp rotate around the object to be measured in a horizontal plane, and cannot adjust the angles and positions of the optical sensor (camera) and the supplementary light lamp relative to the object to be measured, and cannot reduce the measurement error caused by scattered light interference, resulting in a low optical detection accuracy for the object. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to solve the problem in the prior art that the supplementary light lamp can only rotate around the object to be measured in a horizontal plane, and cannot adjust the angles and positions of the optical sensor and the supplementary light lamp relative to the object to be measured, and cannot reduce the measurement error caused by scattered light interference, resulting in a low optical detection accuracy for the object.

[0006] The purpose of the present invention is to provide an optical detection device with a supplementary light structure, which synchronously adjusts the angles of the optical sensor and the supplementary light lamp relative to the object when driving the object to rotate, so as to ensure the optical detection accuracy of the object.

[0007] To achieve the above object, the present invention provides an optical detection device with a supplementary light structure, including a placement member and a detection member disposed on the placement member. The placement member includes a placement body and a driving body disposed within the placement body. The placement body is used for placing the object to be measured, and the driving body is used to drive the placement body to rotate the object to be measured; The detection member includes a movable ring body and a plurality of supplementary light scanning bodies disposed on the movable ring body. One end of the movable ring body is slidably connected to the placement body in the vertical direction, and the movable ring body is in transmission connection with the driving body. The movable ring body is used to adjust the angle of the supplementary light scanning body facing the object to be measured. When the driving body drives the placement body to rotate and thus drives the object to be measured to rotate, the driving body synchronously drives the movable ring body to lift along the placement body, and at the same time, the driving body adjusts the angle of the supplementary light scanning body facing the object to be measured through the movable ring body.

[0008] As a further improvement of this technical solution, the placement body includes a central plate. One end of the bottom of the central plate is provided with a placement table. A rotating disk is rotatably connected above the placement table. The rotating disk is used to place the object to be measured. A plurality of fixing plates are provided on the surface of the rotating disk. One end of the top of the central plate is provided with a ceiling disk, and a lamp for lighting is provided at the bottom of the ceiling disk.

[0009] As a further improvement of this technical solution, an inner cavity is formed in the central plate. The driving body includes a motor and a reciprocating lead screw located within the inner cavity. The bottom end of the motor is connected to the reciprocating lead screw through a coupling, and the bottom end of the reciprocating lead screw is in transmission connection with the rotating disk through a belt drive.

[0010] As a further improvement of this technical solution, the movable ring body includes a winding ring and a lifting block provided at one end of the winding ring. The lifting block is slidably connected to the inner wall of the inner cavity in the vertical direction. The reciprocating lead screw is threadedly connected to the lifting block. The driving body further includes a limiting plate disposed on the outer side within the inner cavity. The limiting plate is in plug-in fit with the lifting block.

[0011] As a further improvement of this technical solution, a movable plate and an angle adjustment structure slidably connected to one end of the movable plate are further provided within the movable ring body. The end of the angle adjustment structure away from the movable plate is slidably connected to the limiting plate. The winding ring is a ring-shaped structure with a "C"-shaped cross-section. The movable plate moves up and down within the groove of the winding ring, and drives the supplementary light scanning body to rotate through the up and down movement of the movable plate.

[0012] As a further improvement of this technical solution, a first connecting plate is provided on the inner wall surface of the winding ring. The number of the first connecting plates is the same as the number of the supplementary light scanning bodies. A second connecting plate is rotatably connected within the first connecting plate. One end of the second connecting plate is installed with a supplementary light scanning body. The other end of the second connecting plate passes through the inner wall surface of the winding ring and is located within the groove of the winding ring. A connecting shaft is correspondingly provided on the movable plate, and the connecting shaft is slidably connected to the second connecting plate.

[0013] As a further improvement of the technical solution, the angle adjustment structure includes a third connecting plate located inside the lifting block. The third connecting plate is rotatably connected to the inner wall of the lifting block through a set plate shaft. Both ends of the third connecting plate are slidably connected to the movable plate and the limiting plate respectively.

[0014] As a further improvement of the technical solution, a connecting groove is opened at one end of the movable plate close to the third connecting plate. One end of the third connecting plate is slidably connected to the connecting groove. A limiting groove is opened on the surface of the limiting plate. The limiting groove is an arc-shaped groove. A roller is arranged at the other end of the third connecting plate. The roller is located in the limiting groove. The other end of the third connecting plate is slidably connected to the limiting groove through the arranged roller.

[0015] As a further improvement of the technical solution, the supplementary light scanning body includes an optical sensor installed at one end of the second connecting plate away from the movable plate. A plurality of supplementary light lamps are fixedly installed on the surface of the optical sensor. A reflecting arc plate for gathering the reflecting optical fibers on the object is also arranged at one end of the second connecting plate surface close to the optical sensor.

[0016] In the present invention, after the object to be measured is placed on the placing body, the driving body drives the placing body to rotate, so that the object to be measured rotates, facilitating the supplementary light scanning body to perform a comprehensive dimensional measurement on the object. Among them, when the driving body drives the placing body to rotate and then drives the object to be measured to rotate, the driving body synchronously drives the movable ring body to move up and down along the placing body, and at the same time, the driving body adjusts the angle of the supplementary light scanning body facing the object to be measured through the movable ring body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the optical detection device with a supplementary light structure, when the motor drives the reciprocating lead screw to rotate, and then drives the rotating disc to rotate to make the object rotate, the reciprocating lead screw synchronously drives the sleeve ring to move up and down, which can synchronously change the height of the supplementary light scanning body when the object rotates, thus facilitating the supplementary light scanning body to perform repeated measurements on the object at different heights. And when the movable ring body moves up and down along the limiting plate, the angle adjustment structure will drive the movable plate to move up and down, and then drive the supplementary light scanning body to rotate through the up and down movement of the movable plate, so as to adjust the angle of the supplementary light scanning body relative to the object to be measured, which can reduce the measurement error caused by the interference of scattered light and ensure the optical detection accuracy of the object.

[0018] 2. In the optical detection device with a supplementary light structure, by arranging the supplementary light lamps on the optical sensor and the reflecting arc plate on the second connecting plate, when the second connecting plate drives the optical sensor to rotate to adjust the angle of the optical sensor relative to the object, the supplementary light lamps and the reflecting arc plate can rotate synchronously. The supplementary light lamps illuminate the object to enhance the contrast between the object edge and the background, and then the reflecting arc plate focuses the reflected light on the object, enabling the optical sensor to obtain a bright and clear image, which is beneficial to the optical detection of the object. Brief Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall structure of the shelving member of the present invention; Figure 3 is a partial sectional structure diagram of the shelving member of the present invention; Figure 4 is a schematic diagram of the structure of the detection member of the present invention; Figure 5 is a schematic diagram showing the structural cooperation between the movable ring body and the shelving member of the present invention Figure 1 ; Figure 6 is a schematic diagram showing the structural cooperation between the movable ring body and the shelving member of the present invention Figure 2 ; Figure 7 is Figure 6 an enlarged schematic diagram of the structure at A in Figure 8 is a schematic diagram showing the structural cooperation between the movable ring body and the light supplement scanning body of the present invention; Figure 9 is a schematic diagram of the angle adjustment state of the present invention; Figure 10 is a schematic diagram of the principle of angle adjustment of the light supplement scanning body of the present invention.

[0020] The meanings of the various reference numerals in the figures are as follows: 1, shelving member; 11, placing body; 111, central plate; 1111, inner cavity; 112, placing table; 1121, rotating disk; 1122, fixing plate; 113, ceiling disk; 12, driving body; 121, reciprocating lead screw; 122, limiting plate; 1221, limiting groove; 2, detection member; 21, movable ring body; 211, winding ring; 2111, first connecting plate; 2112, second connecting plate; 212, lifting block; 2121, third connecting plate; 2122, roller; 213, movable plate; 2131, connecting shaft; 2132, connecting groove; 22, light supplement scanning body; 221, optical sensor; 222, light supplement lamp; 223, reflection arc plate. Detailed Description of the Invention

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0024] In order to be able to adjust the angles and positions of the optical sensor and the fill light with respect to the object to be measured, so as to reduce the measurement error caused by scattered light interference, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown in, the purpose of this embodiment is to provide an optical detection device with a fill light structure, including a placing member 1 and a detection member 2 arranged on the placing member 1; The placing member 1 includes a placing body 11 and a driving body 12 arranged in the placing body 11. The placing body 11 is used to place the object to be measured, and the driving body 12 is used to drive the placing body 11 to rotate the object to be measured; The detection member 2 includes a movable ring body 21 and a plurality of fill light scanning bodies 22 arranged on the movable ring body 21. One end of the movable ring body 21 is slidably connected to the placing body 11 up and down, and the movable ring body 21 is in transmission connection with the driving body 12. The movable ring body 21 is used to adjust the angle of the fill light scanning body 22 facing the object to be measured. After placing the object to be measured on the placing body 11, the driving body 12 drives the placing body 11 to rotate, so that the object to be measured rotates to facilitate the fill light scanning body 22 to perform a comprehensive dimensional measurement of the object. Among them, when the driving body 12 drives the placing body 11 to rotate and then drives the object to be measured to rotate, the driving body 12 synchronously drives the movable ring body 21 to lift along the placing body 11, and the driving body 12 simultaneously adjusts the angle of the fill light scanning body 22 facing the object to be measured through the movable ring body 21.

[0025] The above structure is disclosed as follows: First, after placing the object on the rotating disk 1121, in order to be able to obtain the complete surface information of the object for dimensional measurement of the object, such asFigure 3 As shown in the figure, the placement body 11 includes a central plate 111. At one end of the bottom of the central plate 111, there is a placement table 112. Above the placement table 112, a rotating disk 1121 is rotatably connected. The rotating disk 1121 is used to place the object to be measured. On the surface of the rotating disk 1121, there are a plurality of fixing plates 1122. By passing a rope through the holes of the fixing plates 1122 to bind the object or using a bracket to fix the object on the fixing plates 1122, the shaking of the object during rotation can be avoided, and measurement errors can be avoided. At one end of the top of the central plate 111, there is a ceiling disk 113. At the bottom of the ceiling disk 113, there is a lamp for lighting. An inner cavity 1111 is opened in the central plate 111. The driving body 12 includes a motor and a reciprocating lead screw 121 located in the inner cavity 1111. The bottom end of the motor is connected to the reciprocating lead screw 121 through a coupling. The bottom end of the reciprocating lead screw 121 is connected to the rotating shaft at the bottom end of the rotating disk 1121 through a belt drive. After placing the object to be measured on the rotating disk 1121 and fixing it, the motor drives the reciprocating lead screw 121 to rotate in the inner cavity 1111. The bottom end of the reciprocating lead screw 121 then drives the rotating disk 1121 to rotate through the belt drive connection, so that the object located on the rotating disk 1121 is driven to rotate. The supplementary light scanning body 22 scans the rotating object to obtain the complete surface information of the object.

[0026] Since the object has a certain height, when the supplementary light scanning body 22 detects the size of the object, in order to ensure the measurement accuracy of the object size, during measurement, the supplementary light scanning body 22 needs to repeatedly measure the object at different heights, such as Figure 5 As shown in the figure, the movable ring body 21 includes a winding ring 211 and a lifting block 212 provided at one end of the winding ring 211. The lifting block 212 is located in the inner cavity 1111 and is slidably connected to the inner wall of the inner cavity 1111 up and down. The bottom end of the reciprocating lead screw 121 passes through the lifting block 212 and is threadedly connected to the lifting block 212. The driving body 12 further includes a limiting plate 122 provided on the outer side in the inner cavity 1111. The bottom end of the limiting plate 122 passes through the lifting block 212 and is inserted and matched with the lifting block 212. When the motor drives the reciprocating lead screw 121 to rotate and then drives the rotating disk 1121 to rotate, so that the object rotates, the reciprocating lead screw 121 synchronously drives the winding ring 211 to move up and down along the limiting plate 122 through the lifting block 212, so that the height of the supplementary light scanning body 22 can be synchronously changed when the object rotates, thus facilitating the supplementary light scanning body 22 to repeatedly measure the object at different heights.

[0027] Furthermore, in order to be able to adjust the angle of the supplementary light scanning body 22 relative to the object to be measured to reduce the measurement error caused by the interference of scattered light, such as Figure 6 、 Figure 7As shown, an active plate 213 and an angle adjustment structure slidably connected to one end of the active plate 213 are further provided inside the movable ring body 21. The angle adjustment structure is located inside the lifting block 212 and rotatably connected to the lifting block 212. The end of the angle adjustment structure away from the active plate 213 is slidably connected to the limiting plate 122. The winding sleeve ring 211 is a ring-shaped structure with a "C"-shaped cross-section. The active plate 213 moves up and down in the groove of the winding sleeve ring 211. By the up and down movement of the active plate 213, the light supplement scanning body 22 is driven to rotate. When the movable ring body 21 moves up and down along the limiting plate 122, the angle adjustment structure slidably connected to the limiting plate 122 will drive the active plate 213 to move up and down in the groove of the winding sleeve ring 211, and then drive the light supplement scanning body 22 to rotate through the up and down movement of the active plate 213, so as to adjust the angle of the light supplement scanning body 22 relative to the object to be measured.

[0028] The following specifically discloses the active plate 213 and the angle adjustment structure: In order to drive the up and down movement of the active plate 213, the angle adjustment structure includes a third connecting plate 2121 located inside the lifting block 212. Plate shafts are provided on both sides of the middle of the third connecting plate 2121. The plate shafts are inserted into the inner wall of the lifting block 212. The third connecting plate 2121 is rotatably connected to the inner wall of the lifting block 212 through the provided plate shafts. The two ends of the third connecting plate 2121 are respectively slidably connected to the active plate 213 and the limiting plate 122. Specifically, a connecting groove 2132 is opened at one end of the active plate 213 close to the third connecting plate 2121. One end of the third connecting plate 2121 is slidably connected to the connecting groove 2132. A limiting groove 1221 is opened on the surface of the limiting plate 122. The limiting groove 1221 is an arc-shaped groove. A roller 2122 is provided at the other end of the third connecting plate 2121. The roller 2122 is located in the limiting groove 1221. The other end of the third connecting plate 2121 is slidably connected to the limiting groove 1221 through the provided roller 2122. When the movable ring body 21 moves up and down along the limiting plate 122, the roller 2122 slides in the limiting groove 1221. Since the limiting groove 1221 is an arc-shaped groove structure, when sliding, the roller 2122 will drive the third connecting plate 2121 to rotate inside the lifting block 212, driving the active plate 213 slidably connected to one end of the third connecting plate 2121 to move up and down along the groove of the winding sleeve ring 211.

[0029] Then, when the movable plate 213 moves up and down, in order to drive the rotation of the supplementary light scanning body 22, a first connecting plate 2111 is provided on the inner wall surface of the sleeve ring 211. The number of the first connecting plates 2111 is the same as that of the supplementary light scanning bodies 22. A second connecting plate 2112 is rotatably connected inside the first connecting plate 2111. One end of the second connecting plate 2112 is provided with a supplementary light scanning body 22, and the other end of the second connecting plate 2112 passes through the inner wall surface of the sleeve ring 211 and is located in the groove of the sleeve ring 211. The movable plate 213 is correspondingly provided with a connecting shaft 2131. The connecting shaft 2131 passes through the other end of the second connecting plate 2112 and is slidably connected with the second connecting plate 2112. When the angle adjustment structure drives the movable plate 213 to move up and down in the groove of the sleeve ring 211, the connecting shaft 2131 of the movable plate 213 will slide along the other end of the second connecting plate 2112, thereby driving the second connecting plate 2112 to rotate inside the first connecting plate 2111, changing the relative angle between the supplementary light scanning body 22 installed at one end of the second connecting plate 2112 and the object to be measured, so as to reduce the measurement error caused by the interference of scattered light.

[0030] When detecting an object, supplementary light is required to enhance the contrast between the object edge and the background, making the edge clearer and more distinguishable. As Figure 8 shown, the supplementary light scanning body 22 includes an optical sensor 221 installed at one end of the second connecting plate 2112 away from the movable plate 213. A plurality of supplementary light lamps 222 are fixedly installed on the surface of the optical sensor 221. A reflection arc plate 223 for concentrating the reflection optical fibers on the object is also provided at one end of the surface of the second connecting plate 2112 close to the optical sensor 221. By providing the supplementary light lamps 222 on the optical sensor 221 and the reflection arc plate 223 on the second connecting plate 2112, when the second connecting plate 2112 drives the optical sensor 221 to rotate to adjust the angle of the optical sensor 221 relative to the object, the supplementary light lamps 222 and the reflection arc plate 223 can rotate synchronously, and the supplementary light lamps 222 illuminate the object to enhance the contrast between the object edge and the background, and then the reflection arc plate 223 focuses the reflected light on the object, so that the optical sensor 221 can obtain a bright and clear image, which is beneficial to the optical detection of the object.

[0031] In summary, when the motor drives the reciprocating lead screw 121 to rotate, and then drives the rotating disk 1121 to rotate through the reciprocating lead screw 121 to make the object rotate, the reciprocating lead screw 121 synchronously drives the sleeve ring 211 to do reciprocating up and down motion to change the height of the supplementary light scanning body 22, and when the sleeve ring 211 moves up and down, it will also drive the supplementary light scanning body 22 to rotate, so that the angle of the supplementary light scanning body 22 relative to the object changes. The angle adjustment of the supplementary light scanning body 22 is as Figure 9 shown.

[0032] Specifically, the angle adjustment principle of the supplementary light scanning body 22 is asFigure 10 As shown, when the reciprocating lead screw 121 drives the rotating disk 1121 to rotate in the direction shown by the arrow a, the lifting block 212 threadedly connected to the reciprocating lead screw 121 synchronously drives the sleeve ring 211 to move up and down along the limiting plate 122. As shown by the arrow b, when the sleeve ring 211 moves up and down along the limiting plate 122, the lifting block 212 synchronously drives the third connecting plate 2121 to move. Since the roller 2122 at one end of the third connecting plate 2121 slides along the limiting groove 1221 formed on the limiting plate 122, and the limiting groove 1221 is an arc-shaped groove, when the sleeve ring 211 moves up and down along the limiting plate 122, the third connecting plate 2121 will rotate within the lifting block 212, as shown by the arrow c, thereby driving the movable plate 213 to move up and down within the groove of the movable plate 213, and further driving the second connecting plate 2112 to rotate within the first connecting plate 2111 through the up and down movement of the movable plate 213, so as to change the angle of the optical sensor 221 installed at one end of the second connecting plate 2112 towards the object to be measured.

[0033] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.​

Claims

1. An optical detection device with a fill light structure, comprising a shelf (1) and a detection element (2) arranged on the shelf (1), characterized in that: The shelf (1) comprises a placement body (11) and a driving body (12) arranged in the placement body (11); the placement body (11) is used to place an object to be measured, and the driving body (12) is used to drive the placement body (11) to rotate the object to be measured; The detection member (2) comprises a movable ring body (21) and a plurality of fill-light scanning bodies (22) arranged on the movable ring body (21); one end of the movable ring body (21) is connected to the placement body (11) in an up-and-down sliding manner, and the movable ring body (21) is connected to the driving body (12) in a transmission manner; the movable ring body (21) is used to adjust the angle of the fill-light scanning body (22) toward the object to be measured; when the driving body (12) drives the placement body (11) to rotate and then drives the object to be measured to rotate, the driving body (12) synchronously drives the movable ring body (21) to rise and fall along the placement body (11), and the driving body (12) simultaneously adjusts the angle of the fill-light scanning body (22) toward the object to be measured through the movable ring body (21).

2. The optical detection device with a fill light structure according to claim 1, characterized in that: The placement body (11) comprises a central plate (111), a placement platform (112) is arranged at one end of the bottom of the central plate (111), a rotating disk (1121) is rotatably connected above the placement platform (112), the rotating disk (1121) is used to place an object to be measured, a plurality of fixing plates (1122) are arranged on the surface of the rotating disk (1121), a ceiling plate (113) is arranged at one end of the top of the central plate (111), and a lamp for lighting is arranged at the bottom of the ceiling plate (113).

3. The optical detection device with a fill light structure according to claim 2, characterized in that: An inner cavity (1111) is provided in the central plate (111), and the driving body (12) comprises a motor and a reciprocating screw (121) located in the inner cavity (1111); the bottom end of the motor is connected to the reciprocating screw (121) via a coupling, and the bottom end of the reciprocating screw (121) is connected to the rotating disk (1121) via a belt drive.

4. The optical detection device with a fill light structure according to claim 3, characterized in that: The movable ring body (21) comprises a winding ring (211) and a lifting block (212) arranged at one end of the winding ring (211); the lifting block (212) is slidably connected to the inner wall of the inner cavity (1111) in an up-and-down manner; the reciprocating screw (121) is threadedly connected to the lifting block (212); the driving body (12) further comprises a limit plate (122) arranged on the outer side of the inner cavity (1111); the limit plate (122) is plug-fitted to the lifting block (212).

5. The optical detection device with a fill light structure according to claim 4, characterized in that: A movable plate (213) and an angle adjustment structure slidably connected to one end of the movable plate (213) are also provided in the movable ring body (21); the angle adjustment structure is slidably connected to the limit plate (122) at one end away from the movable plate (213); the winding ring (211) is a ring structure with a "C"-shaped cross section; the movable plate (213) is located in a groove of the winding ring (211) and moves up and down; the fill light scanning body (22) is driven to rotate by the up and down movement of the movable plate (213).

6. The optical detection device with a fill light structure according to claim 5, characterized in that: A first connecting plate (2111) is arranged on the inner wall surface of the winding ring (211), and the number of the first connecting plates (2111) is the same as the number of the supplementary light scanning bodies (22). A second connecting plate (2112) is rotatably connected inside the first connecting plate (2111), and the supplementary light scanning body (22) is mounted on one end of the second connecting plate (2112). The other end of the second connecting plate (2112) passes through the inner wall surface of the winding ring (211) and is located in a groove of the winding ring (211). The movable plate (213) is correspondingly provided with a connecting shaft (2131), and the connecting shaft (2131) is slidably connected to the second connecting plate (2112).

7. The optical detection device with a fill light structure according to claim 6, characterized in that: The angle adjustment structure comprises a third connecting plate (2121) located inside the lifting block (212); the third connecting plate (2121) is rotatably connected to the inner wall of the lifting block (212) via a provided plate shaft; and two ends of the third connecting plate (2121) are respectively slidably connected to the movable plate (213) and the limit plate (122).

8. The optical detection device with a fill light structure according to claim 7, characterized in that: A connecting groove (2132) is provided at one end of the movable plate (213) close to the third connecting plate (2121); one end of the third connecting plate (2121) is slidably connected to the connecting groove (2132); a limiting groove (1221) is provided on the surface of the limiting plate (122); the limiting groove (1221) is an arc-shaped groove; a roller (2122) is provided at the other end of the third connecting plate (2121); the roller (2122) is located in the limiting groove (1221); and the other end of the third connecting plate (2121) is slidably connected to the limiting groove (1221) via the provided roller (2122).

9. The optical detection device with a fill light structure according to claim 6, characterized in that: The fill light scanning body (22) comprises an optical sensor (221) mounted on an end of the second connecting plate (2112) away from the movable plate (213); a plurality of fill light lamps (222) are fixedly mounted on the surface of the optical sensor (221); and a reflection arc plate (223) for focusing the reflection optical fiber onto an object is also provided on the surface of the second connecting plate (2112) at an end close to the optical sensor (221).

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