Polarization detection light source positioning device

Abstract

The embodiment of the utility model provides a polarized light detection light source positioning device, and relates to the technical field of light source positioning. The polarized light detection light source positioning device comprises a mounting block, a mounting shaft, a rotating seat, a light source and a friction assembly, the mounting shaft is fixedly connected with the mounting block, a friction part is arranged on the mounting shaft, the rotating seat is rotatably connected with the friction part, the friction assembly is connected with the rotating seat, one end, far away from the rotating seat, of the friction assembly is in contact with the friction part, and the light source is connected with the rotating seat. According to the utility model, accurate control and stable positioning of the light source on angles and two-dimensional plane positions are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to light source positioning technical field, concretely points to a polarized light detection light source positioning device. BACKGROUND

[0002] With the rapid development of display technology, liquid crystal display (LCD) and organic light emitting diode display (OLED) have been widely used in consumer electronics, industrial equipment and medical devices, etc. The display effect depends largely on the performance of the polarizing sheet and the optical quality of the liquid crystal module. In the production and manufacturing process of the display, polarized light detection as a key process is used to evaluate the attachment quality of the polarizing sheet, the liquid crystal alignment state and whether there are defects such as light leakage and color deviation, which directly affects the final performance and yield of the product. At present, polarized light detection is usually realized by illuminating the liquid crystal module with a light source and observing the characteristics of the light after transmission with optical instruments. In the prior art, the polarized light detection device usually includes a light source and a support structure. The angle and position of the light source are adjusted manually or mechanically to meet different detection requirements. For example, some detection equipment uses a fixed light source, and the detection area is changed by moving the module to be detected. This method simplifies the light source design to some extent, but its adjustment range is limited and it is difficult to adapt to diversified detection requirements.

[0003] Other detection equipment in the prior art adjusts the angle of the light source through a simple rotating mechanism to cover different detection angles. However, these devices generally have the problem of insufficient positioning stability. The light source is easily shifted due to external force or gravity after adjustment, resulting in poor repeatability and consistency of the detection results. UTILITARY MODEL CONTENT

[0004] According to the embodiments of the utility model, a polarized light detection light source positioning device is provided to solve the problems raised in the background technology.

[0005] In the first aspect of the utility model, a polarized light detection light source positioning device is provided.

[0006] The polarized light detection light source positioning device includes a mounting block, a mounting shaft, a rotating seat, a light source and a friction assembly. The mounting shaft is fixedly connected with the mounting block, and the mounting shaft is provided with a friction part. The rotating seat is rotatably connected with the friction part, and the friction assembly is connected with the rotating seat. One end of the friction assembly away from the rotating seat is in contact with the friction part, and the light source is connected with the rotating seat.

[0007] Preferably, the rotating seat comprises a mounting disc, a rotating body and a lever, the rotating body is fixedly connected with the mounting disc, one end of the rotating body away from the mounting disc is rotatably connected with the friction part, the rotating body is connected with the lever, the friction assembly is fixedly connected with the mounting disc, and the light source is mounted on the mounting disc.

[0008] Preferably, a notch is formed in the lever for the rotating body to pass through, a strip-shaped protrusion is arranged on the rotating body, a clamping groove matched with the strip-shaped protrusion is formed in the notch, and the strip-shaped protrusion extends into the clamping groove.

[0009] Preferably, the friction assembly comprises a connecting arm, an elastic part and a friction sheet, the connecting arm is fixedly connected with the mounting disc, one end of the connecting arm away from the mounting disc is in contact with the elastic part, the elastic part is inclined towards the friction part, and one end of the elastic part away from the connecting arm is rotatably connected with the friction sheet.

[0010] Preferably, the friction sheet is arc-shaped.

[0011] Preferably, the first transmission mechanism comprises a first mounting seat, two first guide shafts, a lead screw and a first motor, the two first guide shafts are fixedly connected with the first mounting seat, the two first guide shafts pass through the mounting block, the mounting block is slidably connected with the first guide shafts, the lead screw is rotatably connected with the first mounting seat, the output end of the first motor is connected with the lead screw for driving the lead screw to rotate, and the lead screw passes through the mounting block and is threadedly connected with the mounting block.

[0012] Preferably, the second transmission mechanism comprises two second mounting seats, two third mounting seats, two sliding blocks, a second motor, a driving shaft, two first pulleys, two second pulleys, two transmission belts and four second guide shafts, the two second mounting seats and the two third mounting seats are arranged in a rectangular shape, the second guide shafts are installed between the second mounting seats and the third mounting seats, the axis of the second guide shafts is perpendicular to the first guide shafts, the sliding blocks are slidably connected with the second guide shafts, the driving shaft is rotatably installed between the two second mounting seats, the second motor is rotatably connected with the driving shaft, the two first pulleys are fixedly connected with the driving shaft, the two second pulleys are rotatably connected with the two third mounting seats respectively, the transmission belts are wound around the first pulleys and the second pulleys, the sliding blocks are fixedly connected with the transmission belts, and the first mounting seat is fixedly connected with the two sliding blocks.

[0013] The one or more technical solutions provided in the application have at least the following technical effects or advantages:

[0014] The utility model provides a kind of polarized light detection light source positioning device, through the collaborative design of installation block, mounting shaft, rotating seat, light source and friction component, in combination with the auxiliary adjustment function of the first transmission mechanism and the second transmission mechanism, the accurate control and stable positioning of light source on angle and two-dimensional plane position are realized, with the following beneficial effects.The rotating seat is designed by the structure of the mounting disc, rotating body and lever, and the inlay transmission of the strip-shaped protrusion and the clamping groove is matched, so that the user can easily realize the rotation adjustment of light source by pulling lever, easy to operate and reliable transmission, and the friction effect between the connecting arm, elastic part and friction sheet in the friction component and the friction part, ensure that the rotating seat can be stably hovered after rotating to target angle, avoid the problem that light source position is easy to drift in traditional device, so as to improve the accuracy and consistency of light source irradiation angle in polarized light detection process.

[0015] It should be understood that the content described in the utility model part is not intended to limit the key or important features of the embodiments of the utility model, nor to limit the scope of the utility model. Other features of the utility model will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other features, advantages and aspects of the embodiments of the present application will become more apparent upon reading of the following detailed description in conjunction with the accompanying drawings, in which like references refer to like elements. In the drawings:

[0017] Figure 1 A perspective structural schematic view of the polarized light detection light source positioning device according to the embodiment of the utility model is shown;

[0018] Figure 2 A perspective structural view of the sliding block of the polarized light detection light source positioning device according to the embodiment of the utility model is shown;

[0019] Figure 3 A perspective structural schematic view of the light source of the polarized light detection light source positioning device according to the embodiment of the utility model is shown;

[0020] Figure 4 An exploded structural schematic view of the rotating seat of the polarized light detection light source positioning device according to the embodiment of the utility model is shown;

[0021] Figure 5 A perspective structural schematic view of the friction part of the polarized light detection light source positioning device according to the embodiment of the utility model is shown.

[0022] Label name

[0023] 1-mounting block, 2-mounting shaft, 21-friction part, 3-rotary seat, 31-mounting disc, 32-rotary body, 321-protrusion, 33-pole lever, 4-light source, 5-friction assembly, 51-connecting arm, 52-elastic part, 53-friction plate, 6-first transmission mechanism, 61-first mounting seat, 62-first guide shaft, 63-screw, 64-first motor, 7-second transmission mechanism, 71-second mounting seat, 72-third mounting seat, 73-sliding block, 74-second motor, 75-driving shaft, 76-first pulley, 77-second pulley, 78-transmission belt, 79-second guide shaft. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will be a clear and complete description of the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0025] In addition, the term "and / or" in this paper is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0026] As shown in Figures 1 to 5 The light source positioning device for display polarized light detection aims to realize accurate adjustment and stable positioning of the light source angle, so as to improve the efficiency and accuracy of polarized light detection. The device includes a mounting block 1, a mounting shaft 2, a rotary seat 3, a light source 4, and a friction assembly 5. The mounting block 1 serves as the fixed base of the device and is used to mount the entire light source positioning device on a detection equipment or a workbench. One end of the mounting shaft 2 is fixedly connected with the mounting block 1, and the two can be firmly combined through bolts, welding, or one-piece forming. The mounting shaft 2 extends along its axial direction and is provided with a friction part 21 on the outer surface. The friction part 21 is a cylindrical or annular structure formed along the outer surface of the mounting shaft 2, and its surface can have a specific roughness or friction texture to enhance the friction effect. The rotary seat 3 is sleeved on the friction part 21 of the mounting shaft 2 and is rotationally connected with the friction part 21. Preferably, there is a gap between the inner wall of the rotary seat 3 and the outer surface of the friction part 21, so that the rotary seat 3 can freely rotate around the axis of the mounting shaft 2. The outer side of the rotary seat 3 is used to carry the light source 4 and the friction assembly 5.

[0027] The light source 4 is fixedly connected with the rotating seat 3 and can be installed on the rotating seat 3 by screwing, buckling or bonding, etc., and is used for emitting detection light to perform polarization detection on the liquid crystal module. Specifically, the light source 4 comprises a light emitting element, an optical lens and a shell, wherein the light emitting element is preferably an LED lamp bead or a laser diode, can emit light of a specific wavelength and intensity to meet the optical requirements of polarization detection, the optical lens is arranged in front of the light emitting element and is used for focusing or diffusing the light to form a uniform detection light field, and the shell surrounds the light emitting element and the optical lens and is connected with the rotating seat 3 through threads or a clamping groove. The shell not only provides structural support, but also can prevent external dust or impurities from interfering with the light emitting effect of the light source 4. One end of the friction assembly 5 is connected with the rotating seat 3, and the other end extends towards the friction part 21 and is in contact with the outer surface of the friction part 21. The friction assembly 5 can be made of elastic material or contain elastic elements (such as springs) to ensure that a stable friction force is generated between the friction assembly 5 and the friction part 21.

[0028] In use, a liquid crystal module to be detected is placed below the device, and the liquid crystal module comprises a glass substrate, a liquid crystal layer, an upper polarizing sheet, a lower polarizing sheet and a backlight unit. The glass substrate comprises an upper substrate and a lower substrate and is respectively arranged on two sides of the liquid crystal layer to encapsulate liquid crystal molecules. The liquid crystal layer is composed of liquid crystal molecules and controls the polarization direction of light through an electric field. The upper polarizing sheet and the lower polarizing sheet are respectively attached to the upper surface and the lower surface of the glass substrate and are used for selectively transmitting light of a specific polarization direction. The backlight unit is arranged below the lower polarizing sheet and provides a uniform background light source to assist detection. The rotating seat 3 is actuated by an external force to rotate on the friction part 21 around the mounting shaft 2. In the rotating process, the rotating seat 3 drives the light source 4 and the friction assembly 5 to rotate synchronously. The friction assembly 5 slides relative to the surface of the friction part 21 and generates a friction force. When the rotating seat 3 rotates to a target position, the rotating seat 3 can overcome the weight and external force interference to achieve a hovering effect by means of the friction force between the friction assembly 5 and the friction part 21. At this time, the light source 4 is in a stable state and is kept at a required angle. The light emitting element of the light source 4 emits detection light, which is adjusted by the optical lens and irradiates the surface of the upper polarizing sheet of the liquid crystal module. By observing the optical characteristics of the light after passing through the upper polarizing sheet, the liquid crystal layer and the lower polarizing sheet, the attachment quality of the polarizing sheet, whether the liquid crystal alignment is normal and whether there are problems such as light leakage or color deviation can be detected. The utility model realizes flexible adjustment and reliable positioning of the angle of the light source by the cooperation of the friction part 21 and the friction assembly 5 in combination with the specific structure of the light source 4 and the liquid crystal module, avoids the problem of unstable position of the light source in the traditional device, and improves the accuracy and consistency of polarization detection.

[0029] In the embodiment, the rotating seat 3 comprises a mounting disc 31, a rotating body 32 and a lever 33. The rotating body 32 is a hollow cylindrical member, one end of which is fixedly connected with the mounting disc 31, and the two can be firmly combined by screwing, welding or one-piece forming. The mounting disc 31 is a circular or polygonal plate structure. The end of the rotating body 32 away from the mounting disc 31 is sleeved on the friction part 21 and rotationally connected with the friction part 21. Preferably, there is a small gap between the inner wall of the rotating body 32 and the outer surface of the friction part 21 to ensure the smoothness and stability of rotation. The lever 33 is a rod-shaped member and is connected with the rotating body 32. The friction assembly 5 is fixedly connected to the edge area of the mounting disc 31 by bolting, bonding or buckling. The light source 4 is installed on the surface of the mounting disc 31 and can be fixed by threads or clamping grooves to ensure that it moves synchronously with the mounting disc 31. To achieve effective transmission between the lever 33 and the rotating body 32, a notch is provided on the lever 33 for the rotating body 32 to pass through. The notch is a through hole or a slot that penetrates the lever 33. A strip-shaped protrusion 321 is provided on the outer wall of the rotating body 32. The strip-shaped protrusion 321 extends along the axial direction or the circumferential direction of the rotating body 32 and has a predetermined length and height. A clamping groove is provided on the inner wall of the notch and matches the shape and size of the strip-shaped protrusion 321. The clamping groove is a strip-shaped groove recessed in the inner wall of the notch. The strip-shaped protrusion 321 extends into the clamping groove and forms an embedded connection with the clamping groove, so that a stable linkage relationship is formed between the lever 33 and the rotating body 32. In use, the lever 33 is actuated by external force. Under the embedded cooperation of the strip-shaped protrusion 321 and the clamping groove, the lever 33 drives the rotating body 32 to rotate around the friction part 21. The rotating body 32 in turn drives the mounting disc 31 fixedly connected thereto to rotate synchronously. The mounting disc 31 drives the light source 4 and the friction assembly 5 installed thereon to rotate together during rotation, thereby achieving precise adjustment of the angle of the light source 4.

[0030] In the embodiment, the friction assembly 5 comprises a connecting arm 51, an elastic part 52 and a friction sheet 53. The connecting arm 51 is a rigid member, one end of which is fixedly connected with the mounting disc 31, and the two can be firmly combined by means of bolts, riveting or welding. The connecting arm 51 extends away from the mounting disc 31, and the end thereof away from the mounting disc 31 is in contact with the elastic part 52. The elastic part 52 is a member with elasticity, which is preferably made of a spring sheet, a rubber strip or a compression spring. The extension direction of the elastic part 52 is obliquely arranged towards the surface close to the friction part 21 to form a certain pre-tightening angle. The end of the elastic part 52 away from the connecting arm 51 is connected with the friction sheet 53 by means of rotary connection, for example, through a hinge or a pin shaft to realize rotary fit, so as to allow the friction sheet 53 to adaptively adjust the angle within a certain range. The friction sheet 53 is in an arc-shaped structure, and the inner concave surface thereof faces the friction part 21. The arc-shaped curvature of the friction sheet 53 matches the curvature of the outer surface of the friction part 21. Preferably, the friction sheet 53 is made of a material with wear resistance and high friction coefficient, such as rubber, polytetrafluoroethylene or a metal sheet with friction texture on the surface, so as to enhance the friction effect between the friction sheet 53 and the friction part 21. The elastic part 52 provides elastic force for the friction sheet 53 to adhere to the friction part 21 through elastic deformation thereof, so that the inner concave surface of the friction sheet 53 can be closely attached to the outer surface of the friction part 21. In the rotating process of the rotating seat 3, the friction sheet 53 is in sliding contact with the friction part 21 and generates stable friction force. When rotating to the target position, the elastic force of the elastic part 52 ensures that the friction sheet 53 and the friction part 21 maintain sufficient friction resistance, so that the rotating seat 3 overcomes external force interference to realize hovering positioning, thereby guaranteeing the stability and detection accuracy of the light source 4. Through the synergistic effect of the connecting arm 51, the elastic part 52 and the friction sheet 53, the design realizes controllable adjustment and reliable transmission of friction force, and improves the operation flexibility and service life of the device.

[0031] In the embodiment, a first transmission mechanism 6 is further included, the first transmission mechanism 6 comprises a first mounting seat 61, two first guide shafts 62, a lead screw 63 and a first motor 64, the first mounting seat 61 is a fixed support structure, preferably a plate-shaped or frame-shaped member, used for mounting on a workbench of a detection device, the two first guide shafts 62 are cylindrical rods, the two ends of each are fixedly connected with the first mounting seat 61, and the two ends can be firmly combined by screwing, welding or interference fit, the two first guide shafts 62 are arranged in parallel and extend in a first direction, the first guide shafts 62 pass through the mounting block 1, two through holes corresponding to the first guide shafts 62 are formed in the mounting block 1, and the inner wall of the through hole and the outer surface of the first guide shaft 62 form a sliding fit, so that the mounting block 1 can stably slide in the axial direction of the first guide shaft 62, the lead screw 63 is a rod-shaped member with external threads, the two ends of the lead screw 63 are rotatably connected with the first mounting seat 61 through bearings, so as to ensure that the lead screw 63 can freely rotate on the first mounting seat 61, the first motor 64 is fixedly installed on the first mounting seat 61, the output end of the first motor 64 is connected with one end of the lead screw 63 through a shaft coupling or a gear, used for driving the lead screw 63 to rotate around its own axis, the lead screw 63 passes through the mounting block 1 in a direction parallel to the first guide shaft 62, an internally threaded hole corresponding to the external threads of the lead screw 63 is formed in the mounting block 1, and the lead screw 63 and the mounting block 1 are in transmission fit through threaded connection. In use, the first motor 64 is started, the output end of the first motor 64 drives the lead screw 63 to rotate, the lead screw 63 converts the rotary motion into linear motion by engaging the external threads with the internal threads of the mounting block 1, thereby driving the mounting block 1 to move linearly in the axial direction of the first guide shaft 62, the two first guide shafts 62 guide and support the movement of the mounting block 1 through the sliding fit, ensuring the stability and direction accuracy of the movement process, and the linear movement of the mounting block 1 further drives the mounting shaft 2, the rotary seat 3 and the light source 4 mounted on the rotary seat 3 to move synchronously in the first direction, thereby realizing the position adjustment of the light source 4 in the detection plane to adapt to liquid crystal modules of different sizes or detection areas. Through the arrangement of the first transmission mechanism 6, the light source 4 can not only adjust the angle in the rotation direction, but also realize accurate linear displacement in the first direction, further improving the flexibility and application range of the polarization detection.

[0032] In the embodiment, a second transmission mechanism 7 is further included. The second transmission mechanism 7 includes two second mounting seats 71, two third mounting seats 72, two sliders 73, a second motor 74, a driving shaft 75, two first pulleys 76, two second pulleys 77, two transmission belts 78, and four second guide shafts 79. The two second mounting seats 71 and the two third mounting seats 72 are fixed support members, preferably block-shaped structures made of metal or high-strength plastic. The four mounting seats are arranged in a rectangular shape and fixed to the workbench of the detection equipment. The second guide shafts 79 are cylindrical rods. Each pair of the second guide shafts 79 is installed between one second mounting seat 71 and one third mounting seat 72 in parallel. The axis of the second guide shaft 79 extends in a second direction and is perpendicular to the axis of the first guide shaft 62. The slider 73 is a block-shaped member with a through hole matched with the outer diameter of the second guide shaft 79. Each pair of the sliders 73 is sleeved on each pair of the second guide shafts 79 and forms a sliding fit with the second guide shafts 79. The driving shaft 75 is a long strip-shaped shaft member. Its two ends are rotatably installed between the two second mounting seats 71 through bearings. The second motor 74 is fixed to one of the second mounting seats 71. Its output end is rotatably connected to one end of the driving shaft 75 through a shaft coupling or a gear. The two first pulleys 76 are fixedly installed at positions close to the ends of the driving shaft 75. They can be connected by keys or fixed by bolts to ensure synchronous rotation. The two second pulleys 77 are rotatably connected to the two third mounting seats 72 through shafts. The transmission belt 78 is a closed-loop belt member, preferably a synchronous belt or a belt. Each transmission belt 78 surrounds one first pulley 76 and one second pulley 77 and is in meshing transmission with them. The slider 73 is fixedly connected to the transmission belt 78 through bolts or clamping structures. The bottom surface of the first mounting seat 61 is fixedly connected to the upper surfaces of the two sliders 73. They can be firmly combined by screwing or welding.

[0033] In use, the second motor 74 is started, the output end of the second motor 74 drives the driving shaft 75 to rotate around its own axis, the driving shaft 75 drives the two first pulleys 76 to rotate synchronously, the two first pulleys 76 drive the two transmission belts 78 to move along the surrounding path through meshing, the two second pulleys 77 rotate following the transmission belts 78, the transmission belts 78 pull the sliding blocks 73 fixedly connected thereto during movement, so that the two sliding blocks 73 slide along the second guide shaft 79 in the axial direction synchronously, the second guide shaft 79 guides and supports the movement of the sliding blocks 73, ensures the stability and direction accuracy of movement, the sliding of the sliding blocks 73 drives the first mounting seat 61 fixedly connected thereto to move in the second direction, the first mounting seat 61 indirectly drives the mounting block 1, the mounting shaft 2, the rotating seat 3 and the light source 4 mounted on the rotating seat 3 to move synchronously through the first transmission mechanism 6, so as to realize the position adjustment of the light source 4 in the second direction perpendicular to the first direction. The belt transmission and guide structure of the second transmission mechanism 7 cooperates with the first transmission mechanism 6, so that the light source 4 can realize flexible position adjustment in a two-dimensional plane, further meets the requirements of different detection areas or complex detection requirements, and improves the applicability and accuracy of the polarized light detection device.

[0034] The above specific embodiments do not constitute a limitation on the protection scope of the utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A polarized detection light source positioning device, characterized by, The utility model relates to a kind of light source rotating device, including: Mounting block (1), mounting shaft (2), rotating seat (3), light source (4) and friction component (5);The mounting shaft (2) is fixedly connected with the mounting block (1), the mounting shaft (2) is provided with friction part (21), the rotating seat (3) is rotatably connected with the friction part (21), the friction component (5) is connected with the rotating seat (3), the end of the friction component (5) away from the rotating seat (3) is in contact with the friction part (21), and the light source (4) is connected with the rotating seat (3).

2. The polar detection light source positioning device of claim 1, wherein, The rotating seat (3) includes mounting disc (31), rotating body (32) and lever (33), the rotating body (32) is fixedly connected with the mounting disc (31), the end of the rotating body (32) away from the mounting disc (31) is rotatably connected with the friction part (21), the rotating body (32) is connected with the lever (33), the friction component (5) is fixedly connected with the mounting disc (31), and the light source (4) is mounted on the mounting disc (31).

3. The polar detection light source positioning device of claim 2, wherein, The lever (33) is provided with a notch for the rotating body (32) to pass through, and the rotating body (32) is provided with a strip-shaped protrusion (321), and a clamping groove matched with the strip-shaped protrusion (321) is formed in the notch, and the strip-shaped protrusion (321) extends into the clamping groove.

4. The polar detection light source positioning device of claim 2, wherein, The friction component (5) includes connecting arm (51), elastic part (52) and friction plate (53);The connecting arm (51) is fixedly connected with the mounting disc (31), and the end of the connecting arm (51) away from the mounting disc (31) is in contact with the elastic part (52), the elastic part (52) is inclined towards the friction part (21), and the end of the elastic part (52) away from the connecting arm (51) is rotatably connected with the friction plate (53).

5. The polar detection light source positioning device of claim 4, wherein, The friction plate (53) is arc-shaped.

6. The polar detection light source positioning device of claim 1, wherein, It also includes a first transmission mechanism (6), the first transmission mechanism (6) includes first mounting seat (61), two first guide shafts (62), lead screw (63) and first motor (64);Two first guide shafts (62) are fixedly connected with the first mounting seat (61), two first guide shafts (62) pass through the mounting block (1), the mounting block (1) is slidably connected with the first guide shaft (62), the lead screw (63) is rotatably connected with the first mounting seat (61), the output end of the first motor (64) is connected with the lead screw (63), for driving the lead screw (63) to rotate, the lead screw (63) passes through the mounting block (1) and is threadedly connected with the mounting block (1).

7. The polar detection light source positioning device of claim 6, wherein, Also include the second transmission mechanism (7), the second transmission mechanism (7) includes two second mounting seat (71), two third mounting seat (72), two sliders (73), second motor (74), drive shaft (75), two first pulley (76), two second pulley (77), two transmission belt (78) and four second guide shaft (79); Two second mounting seat (71) and two third mounting seat (72) are rectangularly arranged, the second guide shaft (79) is installed between the second mounting seat (71) and the third mounting seat (72), the axis of the second guide shaft (79) is perpendicular to the first guide shaft (62), the slider (73) is slidably connected with the second guide shaft (79), the drive shaft (75) is rotatably installed between two second mounting seat (71), the second motor (74) is rotatably connected with the drive shaft (75), two first pulley (76) is fixedly connected with the drive shaft (75), two second pulley (77) is rotatably connected with two third mounting seat (72) respectively, the transmission belt (78) is around the first pulley (76) and the second pulley (77), the slider (73) is fixedly connected with the transmission belt (78), the first mounting seat (61) is fixedly connected with two sliders (73).

Images