An 8 mirror detection auto-adjusting system

Abstract

The application provides an 8-surface mirror detection automatic adjusting system, which comprises a stand, a detection group and a controller, the detection group comprises a camera, a power group and a support for carrying the camera and the power group, a rotating wheel is sleeved on the outer circle of the lens of the camera, a plurality of positioning columns are arranged in a circular array with the center of the rotating wheel as the center on the rotating wheel, a rotating strip is further arranged on the support, a torsional spring and a sensor are arranged between the rotating strip and the support, and one end of the rotating strip is located between the two positioning columns; the controller comprises a detection library, the detection library comprises initial information and focusing information; the controller further comprises an acquisition module for acquiring touch information and a record analysis module for calculating an actual focal length value; the application has the advantages that the lens of the camera can be automatically focused, and the focal length can be accurately recorded and adjusted.

Description

Technical Field

[0001] The present invention relates to the field of detection equipment, and more particularly to an 8-mirror detection automatic adjustment system. Background Art

[0002] Camera detection is currently the main detection method for various automated equipment. General automated production equipment will have multiple detection mechanisms, all of which are completed by taking corresponding images by camera. The present invention is aimed at the detection of ring parts, such as rubber rings. The existing detection camera is fixed and always takes images at the same focal length and distance. It cannot be adjusted. If adjustment is required, manual focusing is required, which is inconvenient and has low accuracy. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an 8-mirror detection automatic adjustment system, which can automatically focus the camera lens and accurately record and adjust the focal length.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An 8-mirror detection and automatic adjustment system includes a stand, a detection group and a controller sequentially arranged on the stand from top to bottom, the detection group including a camera, a power group, and a bracket for carrying the camera and the power group, a rotating wheel is mounted on the outer ring of the camera lens, the power group is used to drive the rotating wheel to rotate so as to rotate and focus the camera lens, the rotating wheel is provided with a plurality of positioning posts arranged in a circular array with the rotating wheel center as the center, the bracket is also provided with a rotating bar, a torsion spring and a sensor are provided between the rotating bar and the bracket, and one end of the rotating bar is located between two positioning posts;

[0006] The controller includes a detection library, which includes initial information and focus information, the initial information reflects the initial focus value of the camera, and the focus information reflects the adjusted focus value corresponding to each signal point;

[0007] The controller also includes an acquisition module and a record analysis module;

[0008] The acquisition module acquires the signal points generated by the touch between the rotating bar and the positioning column detected by the sensor as touch information;

[0009] The recording and analysis module obtains the initial information and focusing information from the detection library, obtains the touch information from the acquisition module, and calculates the actual focal length value through a superposition formula based on the initial information, focusing information and touch information.

[0010] Furthermore, there is an equal height difference between two adjacent positioning columns, and each positioning column is arranged from low to high. The sensor is a torque sensor, and the focusing information includes a preset torque value and a preset focal length value. The preset torque value corresponds one-to-one to the preset focal length value. The acquisition module obtains the torque of the rotating bar under the action of the torsion spring detected by the torque sensor as actual torque information. The recording and analysis module obtains the actual torque information in the acquisition module, and indexes the corresponding preset focal length value in the detection library according to the actual torque information as the actual focal length information.

[0011] Furthermore, the length of each positioning column is the same, and the detection library also includes a total focal length value. The superposition formula is configured as:

[0012] z=x±ny

[0013] Among them, z--actual focal length value, x--initial information, n--touch information, y--focus information;

[0014] The actual focal length value is less than or equal to the total focal length value.

[0015] Furthermore, a displacement sensor is provided on the rotating bar, and the focusing information further includes preset displacement information, which reflects the displacement amount of the rotating bar when each positioning column toggles the rotating bar to rotate, and the preset displacement information corresponds to the preset focal length value. The controller further includes a feedback module, wherein the acquisition module obtains the displacement amount of any point on the rotating bar detected by the displacement sensor as actual displacement information, and the feedback module obtains the actual displacement information in the acquisition module, and indexes the corresponding preset focal length value in the detection library according to the actual displacement information as feedback focal length information;

[0016] The feedback module obtains the actual focal length information from the recording and analysis module, compares the feedback focal length information with the actual focal length information, and issues a focal length confirmation command if the two match; if the two do not match, issues a reconfirmation command to rotate the wheel back to the front positioning column and toggle the bar once.

[0017] Furthermore, the bracket is provided with a hinged sleeve, a sliding groove is provided at the bottom of the hinged sleeve, a sliding cavity is provided inside the hinged sleeve, both ends of the sliding cavity are communicated with the sliding groove, the bearing in the sliding cavity is connected to a limiting piece, slots are provided at the opposite ends of the limiting piece, and magnetic parts that cooperate with the slots are provided on the opposite sides of the hinged sleeve, one end of the turning bar passes through the slot and is connected to the center point of the hinged sleeve by rotation of a torsion spring, and push rods are also provided on the opposite sides of the turning bar. When the positioning column pushes the turning bar, the push rod extends into the sliding cavity to push the limiting piece to slide, so that the magnetic piece is locked into the slot.

[0018] Furthermore, a reflection group and a light source group are provided on the lower stand of the detection group. The light source group is located above the workpiece to be tested. The reflection group includes a support seat and an 8-faceted conical mirror. A support member is provided at the bottom of the support seat. The 8-faceted conical mirror is located on the support member, and the bottom surface of the support seat is provided with several through surfaces for reflecting the image of the workpiece to be tested. The light source group is used to provide a detection light source.

[0019] Furthermore, the support member includes a fixing ring and a plurality of connecting rods, one end of the plurality of connecting rods is distributed on the outer ring of the fixing ring, and the other end is connected to the inner side surface of the support seat.

[0020] Furthermore, the inner side surface of the support seat is formed with an inner groove, and the support seat is also provided with a scraping mechanism, which includes a telescopic scraping rod, a scraping blade, a slider, a first drive group and a second drive group. The scraping blade is located at one end of the telescopic scraping rod, and the other end of the telescopic scraping rod is slidably connected to the slider. The first drive group drives the telescopic scraping rod to move in the vertical direction so that the scraping blade scrapes off the mirror dust of the 8-faceted conical mirror from top to bottom. The slider is slidably connected to the inner groove, and the second drive group drives the slider to move so that the scraping blade is aligned with or switches the mirror surface to be scraped.

[0021] Furthermore, the controller also includes a judgment module, which obtains the image captured by the camera as actual image information, analyzes and judges the cleanliness of the mirror based on the actual image information, and sends a cleaning command to the controller if there is dust on any mirror surface; if there is no dust on all mirror surfaces, a normal command is sent to the controller.

[0022] Furthermore, the light source group includes an annular light seat, the inner side surface of the annular light seat is a light-emitting surface, and the inner circle diameter of the annular light seat is larger than the outer circle diameter of the support seat.

[0023] Beneficial effects of the present invention:

[0024] 1. The power unit drives the camera lens to rotate, achieving the purpose of automatic focus and quickly and efficiently adjusting the lens focal length. A circle of positioning posts is set on the rotating wheel. When the wheel rotates, each positioning post will touch the rotating bar during movement, causing the rotating bar to rotate through the torsion spring. The torque sensor can detect the torque of the rotating bar and record it. It can also determine the rotation amount of the camera lens to prevent the lens from continuing to rotate after reaching the upper limit of rotation and causing damage to the lens.

[0025] 2. By setting up a corresponding adjustment system, the actual angle of rotation of the camera lens driven by the power source can be effectively monitored and detected, so that the actual focal length can be accurately adjusted to the focal length value that needs to be adjusted, avoiding excessive rotation of the camera lens by the power source and deviation in the camera lens focus adjustment.

[0026] 3. By setting up 8 conical mirrors and annular light sources, the image of the inner side of the rubber ring below can be reflected on the 8 surfaces of the 8 conical mirrors. Then, the camera above is used to shoot downward to obtain images on the 8 surfaces, which can clearly detect and judge the quality of the rubber ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a diagram of the relationship between modules in the controller of the present invention;

[0028] Figure 2 It is a three-dimensional structural diagram of the present invention;

[0029] Figure 3 It is a structural diagram of the detection group in the present invention;

[0030] Figure 4 This is a diagram of the connection structure between the transfer bar and the bracket in the present invention;

[0031] Figure 5 is a bottom perspective view of the reflective group of the present invention;

[0032] Figure 6 It is a connection diagram between the scraping surface structure and the support seat in the present invention.

[0033] Figure numerals: 1, stand; 2, detection group; 201, camera; 202, bracket; 203, rotating wheel; 204, motor; 205, pulley; 206, belt; 3, reflection group; 31, support seat; 32, 8-faceted conical mirror; 4, light source group; 41, annular light seat; 5, support member; 51, fixing ring; 52, connecting rod; 6, positioning column; 7, rotating bar; 8, torsion spring; 9, hinge sleeve; 10, slide groove; 11, slide cavity; 12, limit member; 13, slot; 14, magnetic member; 15, push rod; 16, inner groove; 17, telescopic scraper rod; 18, scraper; 19, slider; 20, slide plate; 21, first power source; 22, second power source; 23, third power source; 101, acquisition module; 102, recording and analysis module; 103, feedback module; 104, judgment module. DETAILED DESCRIPTION

[0034] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0035] The existing detection camera 201 is fixed and always takes images at the same focal length and distance. It cannot be adjusted. If adjustment is required, it needs to be manually focused. The focusing process is inconvenient and has low accuracy. Therefore, the present invention designs this 8-mirror detection automatic adjustment system. The specific structure is as follows: Figure 2-3 As shown, it includes a stand 1 and a detection group 2 and a controller arranged on the stand 1 in sequence from top to bottom. The detection group 2 includes a camera 201, a power group and a bracket 202 for carrying the camera 201 and the power group. A rotating wheel 203 is provided on the outer ring of the lens of the camera 201. The power group is used to drive the rotating wheel 203 to rotate so that the lens of the camera 201 rotates and focuses. Compared with the existing manual focusing method of the fixed camera 201, the automatic focusing mechanism of the present invention can achieve fast, accurate and convenient focusing. A detection member for detecting the rotation angle of the rotating wheel 203 is also provided on the bracket 202. The detection member here can be a fixed visual detector or a switch triggered by the rotation of the rotating wheel 203 to send information to determine whether the camera 201 is in focus. The lens rotation angle, that is, the focusing situation, is judged in the detection method adopted in the present invention. A plurality of positioning posts 6 in a circular array with the center of the wheel 203 as the center are provided on the rotating wheel 203, and a rotating bar 7 is further provided on the bracket 202. A torsion spring 8 and a sensor are provided between the rotating bar 7 and the bracket 202 (when the rotating bar 7 is in a vertical state, the torsion spring 8 is in a compressed state, and when the rotating bar 7 rotates and returns, the torsion spring 8 can prevent the rotating bar 7 from rotating back). One end of the rotating bar 7 is located between the two positioning posts 6. When the rotating wheel 203 rotates, each positioning post 6 will move the rotating bar 7 during the movement, so that the rotating bar 7 rotates through the torsion spring 8. The sensor can detect the torque of the rotating bar 7 to record it, and can also judge the rotation amount of the lens of the camera 201, so as to avoid the lens from continuing to rotate after reaching the upper limit of rotation and causing damage to the lens.

[0036] like Figure 2 As shown, the power group includes a motor 204, and a belt 206 pulley 205 is provided on the output end of the motor 204. The belt 206 pulley 205 is connected to the rotating wheel 203 through a belt 206, wherein the outer ring of the belt 206 pulley 205 is provided with teeth, and the outer side surface of the rotating wheel 203 is also provided with teeth. Correspondingly, the belt 206 and the belt 206 pulley 205 and the rotating wheel 203 are all toothed belt transmissions, which can avoid slipping. Since some cameras 201 have lenses with two layers of focusing, namely, upper lens and lower lens, the rotating wheel 203 can be set to be separated and connected, and the belt 206 pulley 205 and the output end of the motor 204 can also be separated and connected.

[0037] Control part, such as Figure 1 As shown,

[0038] The controller includes a detection library, which includes initial information and focus information. The initial information reflects the initial focus value of the camera 201, and the focus information reflects the adjusted focus value corresponding to each signal point.

[0039] The controller also includes a collection module 101 and a record analysis module 102;

[0040] The acquisition module 101 acquires the signal points generated by the contact between the rotating bar 7 and the positioning column 6 detected by the sensor as touch information;

[0041] The recording and analysis module 102 obtains the initial information and focusing information from the detection library, obtains the touch information from the acquisition module 101, and calculates the actual focal length value through a superposition formula based on the initial information, focusing information and touch information. When the actual focal length value is calculated, the recording and analysis module 102 will send the actual focal length value to the detection library for storage, replacing the original initial focal length value, and use it as the new initial focal length value for subsequent focusing.

[0042] The first way is that in order to facilitate the analysis and judgment of information, there is an equal height difference between two adjacent positioning columns 6, and each positioning column 6 is arranged from low to high. The sensor is a torque sensor, and the focusing information includes a preset torque value and a preset focal length value. The preset torque value corresponds to the preset focal length value one by one. The acquisition module 101 The torque sensor detects the torque of the turn bar 7 under the action of the torsion spring 8 as the actual torque information, and the recording and analysis module 102 obtains the actual torque information in the acquisition module 101, and indexes the corresponding preset focal length value in the detection library according to the actual torque information as the actual focal length information, and matches the preset focal length value according to the actual torque value. For example: when focusing is required, the wheel 203 rotates in the forward direction, that is, after the wheel 203 rotates, the higher positioning column 6 first touches the turn bar 7. Assuming that the rotation angle of the turn bar 7 is 5°, the torque detected by the torque sensor is A. The lower positioning column 6 touches the turn bar 7, and the rotation angle of the turn bar 7 is less than 5°. The torque detected by the torque sensor is different from A, so it is possible to quickly identify the rotation status of the lens of the camera 201 at this time.

[0043] In the second method, the length of each positioning column 6 is the same, and the detection library also includes the total focal length value. The superposition formula is configured as:

[0044] z=x±ny

[0045] Among them, z--actual focal length value, x--initial information, n--touch information, y--focus information;

[0046] The actual focal length value is less than or equal to the total focal length value; wherein, the focusing information reflects the adjusted focal length value corresponding to a point, that is, the positioning column 6 moves the rotating bar 7 once, which means that the adjusted focal length increases by A or decreases by A. For example: this time the rotating wheel 203 rotates clockwise until a total of 4 positioning columns 6 touch the rotating bar 7. Each touch indicates that the adjusted focal length value is A, and the initial focal length value is B. The focal length value increases when rotating clockwise, and the actual focal length value is equal to B plus 4A.

[0047] The rotating bar 7 is also provided with a displacement sensor. The focusing information also includes preset displacement information. The preset displacement information reflects the displacement amount of the rotating bar 7 when each positioning column 6 rotates the rotating bar 7. The preset displacement information corresponds to the preset focal length value. The controller also includes a feedback module 103. The acquisition module 101 obtains the displacement amount of any point on the rotating bar 7 detected by the displacement sensor as actual displacement information. The feedback module 103 obtains the actual displacement information in the acquisition module 101 and indexes the corresponding preset focal length value in the detection library according to the actual displacement information as feedback focal length information.

[0048] The feedback module 103 obtains the actual focal length information in the record analysis module 102, and compares the feedback focal length information with the actual focal length information. If the two are consistent, a focal length confirmation command is issued. If the two are inconsistent, a reconfirmation command is issued to rotate the wheel 203 back to the front positioning column 6 to turn the rotating bar 7 once. When the two are inconsistent, the wheel 203 initially rotates clockwise, then the wheel 203 will rotate counterclockwise to make the positioning column 6 that has just turned the rotating bar 7 rotate in the opposite direction to turn the rotating bar 7 once, and calculate the displacement.

[0049] like Figure 4As shown, when the positioning column 6 moves the turning bar 7, the torsion spring 8 will be compressed. When the positioning column 6 is separated from the turning bar 7, the turning bar 7 will reset. Under the action of the torsion spring 8, the turning bar 7 is prone to rocking back and forth, affecting the movement of the next positioning column 6. Therefore, a hinged sleeve 9 is provided on the bracket 202, and a slide groove 10 is provided at the bottom of the hinged sleeve 9. A slide cavity 11 is provided inside the hinged sleeve 9. Both ends of the slide cavity 11 are connected to the slide groove 10. The bearing in the slide cavity 11 is connected to a limit member 12 (arc strip). Slots 13 are provided at opposite ends of the limit member 12. Magnetic elements 14 that cooperate with the slots 13 are provided on opposite sides of the hinged sleeve 9. One end of the turning bar 7 passes through the slot 13 and It is connected to the center point of the hinge sleeve 9 through the torsion spring 8, and push rods 15 (arc-shaped rods) are provided on the opposite sides of the turning bar 7. When the positioning column 6 pushes the turning bar 7, the push rod 15 extends into the sliding cavity 11 to push the limit member 12 to slide, so that the magnetic member 14 is locked into the slot 13. Its working principle is as follows: when the rotating wheel 203 rotates clockwise, the first positioning column 6 drives the turning bar 7 to rotate, and the push rod 15 on the rotation extends into the sliding cavity 11 to push the limit member 12. The sliding groove 10 on the limit member 12 is aligned with the magnetic buckle in the magnetic member 14, and the magnetic buckle pops out into the sliding groove 10, which limits the limit member 12. At this time, one end of the limit member 12 slides to the sliding cavity 11 When the rotating wheel 203 rotates counterclockwise, the motor 204 driving the rotating wheel 203 will be controlled by the controller. At this time, the magnetic buckle stuck in the limit member 12 will be disengaged from the slot 13. When the positioning column 6 moves the rotating bar 7, the rotating bar 7 touches one end of the limit member 12 outside the sliding cavity 11. The limit member 12 will slide so that the other end is drawn out of the sliding cavity 11. At this time, the magnetic attraction member 14 on this side drives the magnetic buckle to extend into the corresponding slot 13.

[0050] Since the existing detection method is to directly take the image of the rubber ring from the top down, and the background analyzes and judges through the image, the defect of this detection method is that the inner side of the rubber ring cannot be clearly detected, which is prone to omissions. Therefore, a reflection group 3 and a light source group 4 are also provided on the stand 1 below the detection group 2. As shown in Figure 2, the light source group 4 is located above the piece to be tested (specifically, a first power source 21, a second power source 22 and a third power source 23 are provided on one side of the stand 1, and a slide rail A is provided on the other side of the stand 1. A slide plate 20 is slidably connected to the slide rail A. The slide plate 20 is provided with a vertical slide rail, and the bracket 202 is slidably connected to the slide rail B. The first power source 21 is used to drive the slide plate 20 to move in a certain direction. The second power source 22 is used to drive the bracket 202 to slide on the slide rail A, and the third power source 23 is used to drive the light group to slide on the slide rail C). The reflection group 3 includes a support seat 31 and an 8-faceted conical mirror 32. The bottom of the support seat 31 is provided with a support member 5. The 8-faceted conical mirror 32 is located on the support member 5, and the bottom surface of the support seat 31 is provided with a plurality of through surfaces for reflecting the image of the test piece. The light source group 4 is used to provide a detection light source. By setting the conical mirror and the annular light source, the image of the inner side of the rubber ring below can be reflected on the 8 surfaces of the conical mirror. Then, the camera 201 above is used to shoot downward to obtain images on the 8 surfaces, which can clearly detect and judge the quality of the rubber ring.

[0051] like Figure 5 As shown, the support seat 31 is through-through (cylindrical) from top to bottom, and the support member 5 includes a fixing ring 51 and a plurality of connecting rods 52. One ends of the plurality of connecting rods 52 are evenly distributed on the outer ring of the fixing ring 51, and the other ends are all connected to the inner side surface of the support seat 31. There are 4 connecting rods 52 in the present invention, and the angle between each connecting rod 52 is 90°. There is an area between two adjacent connecting rods 52 that can penetrate light, which facilitates the light source to pass through and the image of the test piece to be reflected on the 8-faceted conical mirror 32.

[0052] like Figure 6As shown, the inner side surface of the support base 31 is surrounded by an inner groove 16, and the support base 31 is also provided with a scraping mechanism, which includes a telescopic scraping rod 17, a scraping blade 18, a slider 19, a first drive group and a second drive group. The scraping blade 18 is located at one end of the telescopic scraping rod 17, and the other end of the telescopic scraping rod 17 is slidably connected to the slider 19. Since each surface of the 8-faceted conical mirror 32 is inclined, the scraping rod is retractable. The first drive group drives the telescopic scraping rod 17 to move in the vertical direction so that the scraping blade 18 moves from top to bottom. To scrape away dust from the mirror surface of the 8-faceted conical mirror 32, a gear A with the same diameter as the inner groove 16 is provided at the inner groove 16, and a slider 19 is slidably connected to the inner groove 16. The second drive group drives the slider 19 to move so that the scraper 18 is aligned with or switches the mirror surface to be scraped. The second drive group includes a motor 204 and a gear B. Gear B is engaged with the outer teeth of gear A. The slider 19 is located on the inner side of gear A. When gear B rotates to drive gear A to rotate, the slider 19 located on the inner side of gear A can slide along the trajectory of the inner groove 16.

[0053] The controller also includes a judgment module 104, which obtains the image captured by the camera 201 as actual image information, and analyzes and judges the cleanliness of the mirror surface based on the actual image information. If there is dust on any mirror surface, a cleaning command is issued to the controller, that is, it is first determined which mirror surface has dust. After the judgment is completed, the control motor 204 drives the gear A to rotate until the scraper 18 on the slider 19 is aligned with the mirror surface, and the scraper 18 scrapes the dust from top to bottom. If there is no dust on all mirror surfaces, a normal command is issued to the controller.

[0054] like Figure 2 As shown, the light source group 4 includes an annular light seat 41, the inner side of the annular light seat 41 is a light-emitting surface, and the inner ring diameter of the annular light seat 41 is larger than the outer ring diameter of the support seat 31. When detection is required, the first power source 21 will drive the slide 20 to move so that the support seat 31 moves into the annular light seat 41, which is beneficial to the reflection detection of the part to be tested.

[0055] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention are within the scope of protection of the present invention.

Claims

1. An 8-mirror detection automatic adjustment system, characterized by: The invention comprises a stand (1), a detection group (2) and a controller which are sequentially arranged on the stand (1) from top to bottom, wherein the detection group (2) comprises a camera (201), a power group and a bracket (202) for carrying the camera (201) and the power group, a rotating wheel (203) is provided on the outer ring of the lens of the camera (201), the power group is used to drive the rotating wheel (203) to rotate so that the lens of the camera (201) rotates and focuses, the rotating wheel (203) is provided with a plurality of positioning posts (6) in a circular array with the center of the rotating wheel (203) as the center, the bracket (202) is further provided with a rotating bar (7), a torsion spring (8) and a sensor are provided between the rotating bar (7) and the bracket (202), and one end of the rotating bar (7) is located between the two positioning posts (6); The controller includes a detection library, the detection library includes initial information and focus information, the initial information reflects the initial focus value of the camera (201), and the focus information reflects the adjusted focus value corresponding to each signal point; The controller also includes a collection module (101) and a record analysis module (102); The acquisition module (101) acquires the signal points generated by the touch between the rotating bar (7) and the positioning column (6) detected by the sensor as touch information; The recording and analysis module (102) obtains the initial information and focusing information in the detection library, obtains the touch information in the acquisition module (101), and calculates the actual focal length value through a superposition formula based on the initial information, focusing information and touch information.

2. The 8-mirror detection and automatic adjustment system according to claim 1, characterized in that: The height of each positioning column (6) is the same, and the detection library also includes a total focal length value. The superposition formula is configured as follows: z=x±ny ， Among them, z--actual focal length value, x--initial information, n--touch information, y--focus information; The actual focal length value is less than or equal to the total focal length value.

3. The 8-mirror detection and automatic adjustment system according to claim 1, characterized in that: The bracket (202) is provided with an articulated sleeve (9), a sliding groove (10) is provided at the bottom of the articulated sleeve (9), a sliding cavity (11) is provided inside the articulated sleeve (9), both ends of the sliding cavity (11) are communicated with the sliding groove (10), a bearing in the sliding cavity (11) is connected to a limiting member (12), and slots (13) are provided at opposite ends of the limiting member (12), and magnetic members (14) that cooperate with the slots (13) are provided on opposite sides of the articulated sleeve (9), one end of the turning bar (7) passes through the sliding groove (10) and is rotatably connected to the center point of the articulated sleeve (9) through a torsion spring (8), and push rods (15) are also provided on opposite sides of the turning bar (7), and when the positioning column (6) pushes the turning bar (7), the push rod (15) extends into the sliding cavity (11) to push the limiting member (12) to slide, so that the magnetic member (14) is locked into the slot (13).

4. The 8-mirror detection and automatic adjustment system according to claim 1, characterized in that: A reflection group (3) and a light source group (4) are further provided on the stand (1) below the detection group (2); the light source group (4) is located below the test piece; the reflection group (3) comprises a support base (31) and an 8-faceted conical mirror (32); a support member (5) is provided at the bottom of the support base (31); the 8-faceted conical mirror (32) is located on the support member (5); and a plurality of through surfaces are provided on the bottom surface of the support base (31); and the light source group (4) is used to provide a detection light source.

5. The 8-mirror detection and automatic adjustment system according to claim 4, characterized in that: The support member (5) comprises a fixing ring (51) and a plurality of connecting rods (52), one end of each of the connecting rods (52) is distributed on the outer ring of the fixing ring (51), and the other end is connected to the inner side surface of the support seat (31).

6. The 8-mirror detection and automatic adjustment system according to claim 5, characterized in that: An inner groove (16) is provided on the inner side surface of the support seat (31), and a scraping mechanism is also provided on the support seat (31), the scraping mechanism comprising a telescopic scraping rod (17), a scraping blade (18), a slider (19), a first driving group and a second driving group, the scraping blade (18) is located at one end of the telescopic scraping rod (17), and the other end of the telescopic scraping rod (17) is slidably connected to the slider (19), the first driving group drives the telescopic scraping rod (17) to move in a vertical direction so that the scraping blade (18) scrapes off the dust on the mirror surface of the 8-faceted conical mirror (32) from top to bottom, the slider (19) is slidably connected to the inner groove (16), and the second driving group drives the slider (19) to move so that the scraping blade (18) aligns with or switches the mirror surface to be scraped.

7. The 8-mirror detection and automatic adjustment system according to claim 6, characterized in that: The controller also includes a judgment module (104), which obtains an image captured by the camera (201) as actual image information, analyzes and judges the cleanliness of the mirror surface based on the actual image information, and sends a cleaning command to the controller if dust exists on any mirror surface; if there is no dust on all mirror surfaces, sends a normal command to the controller.

8. The 8-mirror detection and automatic adjustment system according to claim 4, characterized in that: The light source group (4) comprises an annular light seat (41), the inner side surface of the annular light seat (41) is a light-emitting surface, and the inner ring diameter of the annular light seat (41) is larger than the outer ring diameter of the support seat (31).

9. An 8-mirror detection automatic adjustment system, characterized by: The invention comprises a stand (1) and a detection group (2) and a controller which are sequentially arranged on the stand (1) from top to bottom. The detection group (2) comprises a camera (201), a power group and a bracket (202) for carrying the camera (201) and the power group. A rotating wheel (203) is provided on the outer ring of the lens of the camera (201). The power group is used to drive the rotating wheel (203) to rotate so that the lens of the camera (201) rotates and focuses. The rotating wheel (203) is provided with a plurality of positioning posts (6) in a circular array with the center of the rotating wheel (203) as the center. The bracket (202) is also provided with a rotating bar (7). A torsion spring (8) and a sensor are provided between the rotating bar (7) and the bracket (202). One end of the rotating bar (7) is located between two positioning posts (6). There is an equal height difference between two adjacent positioning posts (6), and each positioning post (6) is arranged from low to high. The sensor is a torque sensor. The controller includes a detection library, the detection library includes initial information and focus information, the initial information reflects the initial focal length value of the camera (201), the focus information includes a preset torque value and a preset focal length value, and the preset torque value corresponds to the preset focal length value one by one. The controller also includes a collection module (101) and a record analysis module (102); The acquisition module (101) acquires the torque of the rotating bar (7) under the action of the torsion spring (8) detected by the torque sensor as actual torque information; The recording and analysis module (102) obtains the actual torque information in the acquisition module (101), and indexes the corresponding preset focal length value in the detection library as the actual focal length information according to the actual torque information.

10. The 8-mirror detection and automatic adjustment system according to claim 9, characterized in that: The rotating bar (7) is also provided with a displacement sensor, and the focusing information also includes preset displacement information, the preset displacement information reflects the displacement amount of the rotating bar (7) when each positioning column (6) turns the rotating bar (7) to rotate, and the preset displacement information corresponds to the preset focal length value. The controller also includes a feedback module (103), the acquisition module (101) acquires the displacement amount of any point on the rotating bar (7) detected by the displacement sensor as actual displacement information, and the feedback module (103) acquires the actual displacement information in the acquisition module (101), and indexes the corresponding preset focal length value in the detection library according to the actual displacement information as feedback focal length information; The feedback module (103) obtains the actual focal length information in the recording and analysis module (102), compares the feedback focal length information with the actual focal length information, and issues a focal length confirmation command if the two are consistent, and issues a reconfirmation command if the two are inconsistent, so as to cause the rotating wheel (203) to rotate back to the front positioning column (6) and toggle the rotating bar (7) once.

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