Microscopic infrared objective lens converter for nuclear power plant circuit board detection

Abstract

The utility model provides a microscopic infrared objective lens converter for nuclear power plant circuit board detection, comprising a converter main body, a converter upper cover, a driving member and a transmission member, the converter main body is rotatably connected on the converter upper cover, the converter main body is a spherical body structure, and a plurality of objective lenses are uniformly distributed on the converter main body; a mounting bulge is arranged at one end, far away from the converter main body, of the converter upper cover; a fixing hole for connecting and fixing the microscopic infrared camera is formed in the mounting bulge; the output end of the driving part is connected with a transmission part which is in transmission connection with the converter body, and the driving part drives the transmission part to move so as to drive the converter body to rotate. Through an automatic and mechanical switching mode, the switching efficiency of the objective lens is remarkably improved, and the time cost and the error risk caused by manual operation are reduced. The multiple objective lenses are uniformly distributed and rapidly switched, so that the imaging system can flexibly adjust the visual field and the magnification according to different observation requirements, and the flexibility and diversity of imaging are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power plants, and more specifically to a microscopic infrared objective lens converter for detecting circuit boards in nuclear power plants. Background Art

[0002] In the field of infrared imaging technology, microscopic infrared imaging technology is widely used in the monitoring of nuclear power plant equipment because it can detect the temperature distribution and thermal conductivity characteristics of the surface and interior of materials in a non-contact and non-destructive manner. In particular, infrared microscopic inspection of samples such as circuit boards requires different lenses to achieve different magnifications. However, traditional microscopic infrared imaging systems are often limited by the field of view and magnification of a single objective lens, making it difficult to flexibly switch between complex samples under different observation requirements. This is especially inconvenient in scenarios where it is necessary to quickly switch between different objective lenses to obtain different resolutions or observation angles.

[0003] To overcome this technical bottleneck, microscopic infrared imaging systems with interchangeable objective lenses have gradually emerged on the market. However, most of these systems rely on manual objective lens replacement, which is not only cumbersome and inefficient, but frequent lens replacement can also introduce errors and affect image quality. Furthermore, manual objective lens replacement can compromise the system's sealing, increasing the risk of dust and moisture entering the system, further impacting imaging stability and reliability. Utility Model Content

[0004] The technical problem to be solved by the present invention is that, in response to the above-mentioned defects of the prior art, a microscopic infrared objective lens converter for nuclear power plant circuit board inspection is provided, which realizes rapid and accurate switching of the objective lens in an automated and mechanized manner to meet the imaging requirements under different observation needs.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A microscopic infrared objective lens converter for nuclear power plant circuit board detection, comprising a converter body, a converter cover, a driving part and a transmission part;

[0007] The converter body is rotatably connected to the converter upper cover, the converter body is a spherical structure, and a plurality of objective lenses are evenly distributed on the converter body;

[0008] A mounting protrusion is provided on one end of the converter upper cover away from the converter body, and a fixing hole for connecting and fixing the microscopic infrared camera is provided in the mounting protrusion;

[0009] The output end of the driving member is connected to the transmission member, and the transmission member is in transmission connection with the converter body. The driving member drives the transmission member to move and thereby drives the converter body to rotate.

[0010] The converter further includes a radially magnetized magnet for feeding back the rotation angle of the converter body, a magnetic angle sensor for detecting the magnetic angle of the radially magnetized magnet, and a control module. The radially magnetized magnet is mounted on the converter body and is arranged corresponding to the objective lens.

[0011] The magnetic angle sensor is relatively fixed to the converter cover;

[0012] Furthermore, it is preferred that the control module is respectively communicated with the radial magnetized magnet, the magnetic angle sensor, and the driving member, and the control module stores the positioning magnetic angle of each objective lens when it is in the correct working position. The control module obtains the magnetic angle of the radial magnetized magnet transmitted by the magnetic angle sensor, and compares the obtained magnetic angle with the positioning magnetic angle of the target objective lens in real time, and controls the driving member to stop working when the two are equal.

[0013] Furthermore, it is preferred that the converter further comprises a plurality of first magnets and a second magnet disposed on the upper cover of the converter, wherein the plurality of first magnets are disposed on the converter body corresponding to each of the objective lenses.

[0014] Furthermore, it is preferred that an objective lens mounting hole is provided on the converter body, a lens converter is installed on the objective lens mounting hole, an objective lens fixing hole for installing the objective lens is provided on the lens converter, and at least three first fixing positions are evenly arranged outside the edge of the objective lens converter.

[0015] Furthermore, preferably, a gear is provided on the outer periphery of the converter body, the transmission member is a gear structure, and the converter body is meshedly connected with the transmission member.

[0016] Furthermore, it is preferred that it also includes a bracket mounting plate, a bracket accessory fixing plate and a mounting bracket side plate, the bracket accessory fixing plate is installed on the converter body, the two bracket side plates are vertically arranged on both sides of the bracket accessory fixing plate, the bracket mounting plate connects the two bracket side plates, and the bracket mounting plate is used to fix the objective lens converter body to the frame of the infrared camera.

[0017] Furthermore, it is preferred that a mounting bracket connecting plate is further included, and the mounting bracket connecting plate is arranged between the bracket accessory fixing plate and the converter body.

[0018] Furthermore, preferably, a transmission member mounting plate is further provided between the two bracket side plates, and the transmission member passes through a reserved hole of the transmission member mounting plate to be transmission-connected to the converter body.

[0019] Furthermore, it is preferred that the objective lens converter further includes a rotating shaft, which is sleeved on a bearing and is used to connect the converter body and the converter upper cover.

[0020] Furthermore, it is preferred that the mounting protrusion cover is provided with a camera fixing plate.

[0021] The microscopic infrared objective lens converter for nuclear power plant circuit board inspection of the utility model has at least the following effects:

[0022] 1. Improve switching efficiency: Through automated and mechanized switching methods, the utility model significantly improves the switching efficiency of the objective lens and reduces the time cost and error risk caused by manual operation.

[0023] 2. Enhanced imaging flexibility: The even distribution and fast switching function of multiple objective lenses enable the imaging system to flexibly adjust the field of view and magnification according to different observation requirements, improving the flexibility and diversity of imaging.

[0024] 3. Improved imaging quality: The precise objective lens positioning system and stable connection structure effectively reduce the errors and vibrations that may be introduced during the switching process, and improve the stability and quality of imaging.

[0025] 4. Enhanced system reliability: By reducing manual operation links and enhancing the system sealing design, the utility model effectively reduces the risk of dust and moisture entering the system, and improves the reliability and service life of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a bottom view of the three-dimensional structure of the micro-infrared objective lens converter for nuclear power plant circuit board inspection of the utility model;

[0027] Figure 2 yes Figure 1 A top view of

[0028] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure explosion;

[0029] Figure 4 It is a structural diagram of one direction of the converter body;

[0030] Figure 5 yes Figure 4 Structural diagram of the other direction;

[0031] Figure 6 It is a structural diagram of the converter cover;

[0032] Figure 7 yes Figure 6 Structural diagram of the other direction;

[0033] Figure 8 It is a structural diagram of the lens conversion unit. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0039] like Figures 1-8 As shown, the present invention provides a microscopic infrared objective lens converter for nuclear power plant circuit board detection, which includes a converter body 10, a converter cover 20, a driving member 30 and a transmission member 40.

[0040] The converter body 10 adopts a spherical structure design, with multiple objective lenses evenly distributed thereon, ensuring a smooth transition to the working position of each objective lens during rotation. Furthermore, the objective lens converter preferably also includes a rotating shaft 23, which is sleeved on a bearing and is used to connect the converter body 10 and the converter cover 20. The converter body 10 is connected to the converter cover 20 via the rotating shaft 23 to achieve rotational motion.

[0041] A mounting protrusion 21 is provided on the end of the converter cover 20 away from the converter body 10, and a fixing hole 22 for connecting and fixing the microscopic infrared camera is provided in the mounting protrusion 21. This design enables the converter to be easily installed on the camera and maintain a stable connection state.

[0042] In a specific embodiment, the mounting protrusion 21 of the converter upper cover 20 is a mounting protrusion 21 with an inclination angle of 76°, which is used to connect and fix the infrared camera so that the infrared camera is coaxial with the target objective lens on the spherical surface.

[0043] In a specific embodiment, the converter body has a diameter of 125 mm, a total height of 24.8 mm, and five M40*0.75 threaded holes are evenly distributed. A circle of gears is evenly distributed on the outer diameter of the spherical body, with a gear module of m1.5 and a pressure angle of 20.

[0044] The output end of the driver 30 is connected to the transmission member 40, which is in transmission connection with the converter body 10. The driver 30 drives the transmission member 40 to move, thereby driving the converter body 10 to rotate, thereby switching the objective lens. This mechanized switching method greatly improves switching speed and accuracy.

[0045] In a specific embodiment, the driving member 30 is a motor, the transmission member 40 is a pinion, and a gear is provided on the periphery of the converter body 10. The converter body 10 is meshed with the transmission member 40. The output end of the motor is connected to the pinion, and the pinion is meshed with the periphery of the converter body 10. Through the driving action of the motor, the transmission pinion rotates, thereby driving the converter body 10 to rotate, thereby realizing the switching of different objective lenses.

[0046] In a specific embodiment, the converter further includes a radially magnetized magnet for feedback of the rotation angle of the converter body 10, a magnetic angle sensor for detecting the magnetic angle of the radially magnetized magnet, and a control module. The radially magnetized magnet is mounted on the converter body 10 and is arranged corresponding to the objective lens. The magnetic angle sensor is relatively fixed to the converter cover 20. The control module is respectively in communication with the radially magnetized magnet, the magnetic angle sensor, and the driver 30. The control module stores the positioning magnetic angle of each objective lens when it is in the correct working position. The control module obtains the magnetic angle of the radially magnetized magnet transmitted by the magnetic angle sensor and compares the obtained magnetic angle with the positioning magnetic angle of the target objective lens in real time. When the two are equal, the driver 30 is controlled to stop working. The control module controls the driver 30 to stop working by comparing the magnetic angle transmitted by the magnetic angle sensor with the positioning magnetic angle of the target objective lens in real time, thereby achieving precise positioning of the objective lens.

[0047] In a specific embodiment, the converter further includes a plurality of first magnets and a second magnet disposed on the converter cover. The plurality of first magnets are disposed on the converter body 10 corresponding to each objective lens. When the converter body 10 rotates, the converter body 10 stops rotating until a first magnet and a second magnet are attracted together, indicating that the converter has reached a suitable position for the target objective lens.

[0048] In a specific embodiment, the converter body 10 defines an objective lens mounting hole 11, a lens converter 50 is mounted in the objective lens mounting hole 11, and the lens converter 50 defines an objective lens fixing hole 51 for mounting the objective lens. At least three first fixing positions 52 are evenly distributed around the periphery of the objective lens converter. The lens converter 50 defines an objective lens fixing hole 51 for mounting the objective lens, and at least three first fixing positions 52 are evenly distributed around the periphery to ensure stable mounting of the objective lens. When the lens converter 50 is installed, the mounting angle and orientation of the infrared lens can be adjusted by adjusting the mounting orientation of the lens converter 50.

[0049] In a specific embodiment, the microscopic infrared objective lens converter for nuclear power plant circuit board detection also includes a bracket mounting plate 60, a bracket accessory fixing plate 70 and a mounting bracket side plate 80, wherein the bracket accessory fixing plate 70 is installed on the converter body 10, and the two mounting bracket side plates 80 are vertically arranged on both sides of the bracket accessory fixing plate 70, and the bracket mounting plate 60 connects the two bracket side plates, and the bracket mounting plate 60 is used to fix the objective lens converter body 10 to the rack of the infrared camera.

[0050] In a specific embodiment, the microscopic infrared objective lens converter for nuclear power plant circuit board detection also includes an installation bracket connecting plate 90, which is used to connect the bracket accessory fixing plate 70 to the converter body 10, and the installation bracket connecting plate 90 is arranged between the bracket accessory fixing plate 70 and the converter body 10.

[0051] In a specific embodiment, a transmission member mounting plate 100 is further provided between the two mounting bracket side plates 80, and the transmission member 40 is connected to the converter body 10 through the reserved hole of the transmission member mounting plate 100 for fixing the micro motor so that the converter can convert the lens.

[0052] In a specific embodiment, five lenses are respectively installed on the converter body 10, and the five lenses are evenly distributed on the same high-precision machined spherical converter body 10; the mounting protrusion 21 is provided with a camera fixing plate 200, and the infrared camera is installed on the converter body 10 through the camera fixing plate 200. The converter body 10 and the converter cover 20 are connected by a ball bearing, and the converter body 10 rotates around the rotating shaft 23 of the converter cover 20, thereby realizing the rotation of the five lens holes.

[0053] The microscopic infrared objective lens converter for nuclear power plant circuit board inspection of the utility model has at least the following effects:

[0054] 1. Improve switching efficiency: Through automated and mechanized switching methods, the utility model significantly improves the switching efficiency of the objective lens and reduces the time cost and error risk caused by manual operation.

[0055] 2. Enhanced imaging flexibility: The even distribution and fast switching function of multiple objective lenses enable the imaging system to flexibly adjust the field of view and magnification according to different observation requirements, improving the flexibility and diversity of imaging.

[0056] 3. Improved imaging quality: The precise objective lens positioning system and stable connection structure effectively reduce the errors and vibrations that may be introduced during the switching process, and improve the stability and quality of imaging.

[0057] 4. Enhanced system reliability: By reducing manual operation links and enhancing the system sealing design, the utility model effectively reduces the risk of dust and moisture entering the system, and improves the reliability and service life of the system.

Claims

1. A microscopic infrared nosepiece for detecting circuit boards in nuclear power plants, characterized in that: It includes a converter body, a converter cover, a driving part and a transmission part; The converter body is rotatably connected to the converter upper cover, the converter body is a spherical structure, and a plurality of objective lenses are evenly distributed on the converter body; A mounting protrusion is provided on one end of the converter upper cover away from the converter body, and a fixing hole for connecting and fixing the microscopic infrared camera is provided in the mounting protrusion; The output end of the driving member is connected to the transmission member, and the transmission member is in transmission connection with the converter body. The driving member drives the transmission member to move and thereby drives the converter body to rotate.

2. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 1, characterized in that: The converter further includes a radially magnetized magnet for feeding back the rotation angle of the converter body, a magnetic angle sensor for detecting the magnetic angle of the radially magnetized magnet, and a control module. The radially magnetized magnet is mounted on the converter body and is arranged corresponding to the objective lens. The magnetic angle sensor is relatively fixed to the converter cover; The control module is respectively connected to the radial magnetized magnet, the magnetic angle sensor, and the driving member for communication. The control module stores the positioning magnetic angle of each objective lens when it is in the correct working position. The control module obtains the magnetic angle of the radial magnetized magnet transmitted by the magnetic angle sensor, and compares the obtained magnetic angle with the positioning magnetic angle of the target objective lens in real time. When the two are equal, the driving member is controlled to stop working.

3. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 1, characterized in that: The converter further comprises a plurality of first magnets and a second magnet arranged on the upper cover of the converter. The plurality of first magnets are respectively arranged on the converter body corresponding to each of the objective lenses.

4. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 1, characterized in that: The converter body is provided with an objective lens mounting hole, a lens converter is installed on the objective lens mounting hole, the lens converter is provided with an objective lens fixing hole for installing the objective lens, and at least three first fixing positions are evenly arranged outside the edge of the objective lens converter.

5. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 1, characterized in that: A gear is provided on the outer periphery of the converter body, the transmission member is a gear structure, and the converter body is meshedly connected with the transmission member.

6. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 1, characterized in that: It also includes a bracket mounting plate, a bracket accessory fixing plate and a mounting bracket side plate. The bracket accessory fixing plate is installed on the converter body. The two mounting bracket side plates are vertically arranged on both sides of the bracket accessory fixing plate. The bracket mounting plate connects the two mounting bracket side plates. The bracket mounting plate is used to fix the objective lens converter body to the rack of the infrared camera.

7. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 6, characterized in that: It also includes a mounting bracket connecting plate, which is arranged between the bracket accessory fixing plate and the converter body.

8. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 6, characterized in that: A transmission member mounting plate is further provided between the two mounting bracket side plates, and the transmission member passes through a reserved hole of the transmission member mounting plate and is transmission-connected to the converter body.

9. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 1, characterized in that: The objective lens converter further includes a rotating shaft, which is sleeved on a bearing and is used to connect the converter body and the converter upper cover.

10. The microscopic infrared nosepiece for detecting circuit boards in nuclear power plants according to claim 1, characterized in that: The mounting protrusion outer shell is provided with a camera fixing plate.

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