An apparatus for detecting surface defects of an aluminum alloy profile

Abstract

The present application relates to the technical field of aluminum alloy detection, and particularly relates to an aluminum alloy profile surface defect detection device, a camera for detecting the surface defects of the aluminum alloy profile is arranged on a rack, a motorized telescopic rod a and a displacement assembly for driving the camera to displace are arranged on the rack, a housing a is fixedly connected to the output end of the motorized telescopic rod a, a corner position defect adjusting mechanism for detection of the aluminum alloy profile is arranged on the housing b, a defect positioning device is installed on the housing a, and a replacement mechanism for changing the end face of the aluminum alloy profile is further installed on the rack, through the defect positioning device, the specific position, shape and size of each defect and other information can be accurately recorded by marking the defect position, which is very useful for subsequent data analysis, tracking and statistics, and can provide a basis for quality control and production process optimization, and these advantages help to improve the accuracy and efficiency of defect detection and the convenience of subsequent processing and improvement.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy testing technology, specifically to a device for detecting surface defects in aluminum alloy profiles. Background Technology

[0002] Aluminum alloy profiles are widely used in aviation, aerospace, automotive, machinery manufacturing, shipbuilding, construction, decoration, and chemical industries. With the rapid development of science and technology and the industrial economy in recent years, the demand for aluminum alloy welded structural components has been increasing. When using aluminum alloy profiles, it is necessary to detect surface defects such as bending or pitting. Existing methods for detecting surface defects in aluminum alloy profiles have the following problems: manual inspection is inefficient and inaccurate, failing to meet the requirements of high efficiency and high quality; after the machine detects the defect location, it marks it on the display panel, causing confusion for subsequent workers and making it difficult to quickly locate the defect; or it directly issues an alarm to remind workers to mark the defect, which requires stopping the machine for manual marking, resulting in a decrease in speed. Furthermore, the use of paint for marking can obscure the defect location, leading to inaccurate subsequent operations; paint marking is irreversible, requiring additional operations to remove or change it; paint marking may cause splattering and contamination, increasing cleaning and maintenance work. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a surface defect detection device for aluminum alloy profiles. It has the advantage of being able to directly mark the defect location by attaching a tear-off label, making the defect location more conspicuous and easier to identify. It also solves the problem that using paint for marking also has its drawbacks: the marking may obscure the defect location, leading to inaccurate subsequent operations.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an aluminum alloy profile surface defect detection device, comprising a frame as the carrier of the entire device, a camera for detecting surface defects of aluminum alloy profiles on the frame, an electric telescopic rod a and a shifting component for moving the camera on the frame, a housing a fixedly connected to the output end of the electric telescopic rod a, a housing b fixedly connected to the bottom of the housing a, an aluminum alloy profile corner position defect adjustment mechanism for detection on the housing b, a defect positioning device installed on the housing a, and an adjustment mechanism for changing the end face of the aluminum alloy profile installed on the frame.

[0005] Preferably, the defect positioning device includes a label strip disposed inside the housing a, an electric telescopic rod b for labeling rotatably mounted on the housing b, a shifting strip on the electric telescopic rod b, a transmission block hinged to the shifting strip, a limiting plate fixed inside the housing a to adhere to the label strip, an electric suction cup for adsorbing the label mounted on the transmission block, and a driving component on the electric telescopic rod b for labeling in different positions.

[0006] Preferably, the driving component includes a limiting frame fixed to the free end of the electric telescopic rod b, the end of the shifting bar inserted into the limiting frame and slidably connected thereto, a load-bearing plate fixed inside the limiting frame, a spring a fixed between the load-bearing plate and the shifting bar, a top rod fixed to the bottom of the spring a and slidably connected to the load-bearing plate, and a stop labeling touch switch installed on the bottom wall of the limiting frame.

[0007] Preferably, a drive wheel a and a drive wheel b are rotatably installed inside the housing a, the label strip is driven between the drive wheel a and the drive wheel b, and a motor that pulls the label strip is fixed inside the housing a.

[0008] Preferably, a motor b for labeling at different positions is fixedly mounted on the housing b, a connecting plate is fixedly connected to the output end of the motor b, and an electric telescopic rod b is fixedly mounted on the motor b.

[0009] Preferably, the adjustment mechanism includes a drive shaft rotatably mounted on both sides of the housing b, a connecting strip fixedly connected to the drive shaft, a camera fixedly mounted on the connecting strip, and a transmission component for adjusting the camera angle on the housing b.

[0010] Preferably, the transmission assembly includes a lead screw rotatably mounted inside the housing b, a double-sided rack threaded onto the lead screw, a slider fixedly connected to the double-sided rack, the end of the slider being slidably connected to the housing b via a groove, a gear a meshing with the double-sided rack being mounted on a transmission shaft, a worm gear fixedly connected to the top of the lead screw, a connecting shaft rotatably mounted on the housing b, a worm meshing with the worm gear being mounted on the connecting shaft, a gear b fixedly connected to the end of the connecting shaft, and a toothed plate corresponding to gear b fixedly connected to the frame.

[0011] Preferably, the switching mechanism includes springs b fixed to both sides inside the frame, the ends of multiple springs b are fixed to a base, the aluminum alloy profile is located on the base, support sleeves are rotatably installed on both sides of the frame, electric push rods are fixed on the support sleeves, the free end of the electric push rods is fixed to a chuck for fixing the aluminum alloy profile, and the frame is provided with a rotating component for driving the aluminum alloy profile to rotate.

[0012] Preferably, the rotating assembly includes a motor c fixed on the frame, a rotating shaft rotatably mounted on the frame, pulleys fitted on both the rotating shaft and the support sleeve, and a belt connecting two adjacent pulleys.

[0013] Preferably, the displacement assembly includes a frame fixed on the frame, a motor a fixed on the frame, a screw fixed to the output end of the motor a, a transmission bar threaded onto the screw, and the end of the transmission bar extending through a groove to the outside of the frame and fixed to the electric telescopic rod a.

[0014] By employing the above technical solution, the present invention provides a surface defect detection device for aluminum alloy profiles, which has at least the following beneficial effects:

[0015] 1. This aluminum alloy profile surface defect detection device, by setting up a defect positioning device and marking the defect location, can accurately record the specific location, shape, and size of each defect. This is very useful for subsequent data analysis, tracking, and statistics, and can provide a basis for quality control and production process optimization. These advantages help improve the accuracy and efficiency of defect detection, as well as the convenience of subsequent processing and improvement.

[0016] 2. This aluminum alloy profile surface defect detection device, through induction labeling and automatic reset, ensures that the label is accurately attached to the target position on the aluminum alloy profile. This helps ensure that the defect location is correctly marked, improving the visibility and recognition of defects. Automatic reset reduces the need for manual intervention and significantly improves the speed and efficiency of labeling. After completing a labeling task, the labeling suction cup can immediately return to its initial position, ready for the next labeling operation. This saves time and labor costs and improves the overall efficiency of the production line. Due to the different distances between the electric suction cup and the aluminum alloy profile, automatic sensing prevents the electric suction cup from failing to reset quickly after labeling, preventing jamming.

[0017] 3. This aluminum alloy profile surface defect detection device, by setting an adjustment mechanism and adjusting the camera angle, can obtain images from different angles and perspectives. This allows for a more comprehensive capture of image information of the gaps on the surface of the aluminum alloy profile. Observing the gap area from multiple angles helps to discover more subtle defects or undesirable conditions. For the detection of gap locations in aluminum alloy profiles, adjusting the perspective can reduce the possibility of missed detections and false detections. Different angles and perspectives can provide different information, helping to more comprehensively and accurately assess the quality and defect conditions of the gap area.

[0018] 4. The aluminum alloy profile surface defect detection device uses a double-sided rack and pinion a to drive the transmission shaft to rotate. The transmission shaft drives the camera to adjust its angle through a connecting strip. Then, the free end of the camera continues to extend, so that the camera and the gap position of the aluminum alloy profile are on the same plane. Then, the shifting component drives the camera to move horizontally, which can then detect the corner position of the aluminum alloy profile, further improving the comprehensiveness of defect detection and reducing the power source, thus reducing the manufacturing cost of the equipment.

[0019] 5. This aluminum alloy profile surface defect detection device, by setting up an exchange mechanism, can exchange the end face of the aluminum alloy profile, which facilitates the machine to perform comprehensive inspection of the aluminum alloy profile. Moreover, the automated inspection helps to improve the efficiency of the workers and reduce their workload. Attached Figure Description

[0020] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front.

[0022] Figure 2 This is a schematic diagram of the external connection structure of the camera of the present invention;

[0023] Figure 3 This is a schematic diagram of the defect location device of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of point A;

[0025] Figure 5 This is a schematic diagram of the adjustment mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the switching mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the shifting component of the present invention.

[0028] Figure label:

[0029] 100. Frame; 101. Electric telescopic rod a; 102. Camera; 103. Shifting assembly; 1031. Motor a; 1032. Frame; 1033. Screw; 1034. Transmission bar; 104. Housing a; 105. Housing b;

[0030] 200. Adjusting mechanism; 201. Lead screw; 202. Double-sided rack; 203. Drive shaft; 204. Gear a; 205. Connecting bar; 206. Worm gear; 207. Connecting shaft; 208. Worm; 209. Gear b; 210. Gear plate;

[0031] 300. Defect location device; 301. Transmission wheel a; 302. Transmission wheel b; 303. Motor; 304. Label strip; 305. Electric suction cup; 306. Transmission block; 307. Limiting plate; 308. Displacement strip; 309. Driving component; 3091. Spring a; 3092. Top rod; 3093. Touch switch; 3094. Limiting frame; 310. Motor b; 311. Electric telescopic rod b;

[0032] 400. Changing mechanism; 401. Motor c; 402. Support sleeve; 403. Electric push rod; 404. Chuck; 405. Rotating shaft; 406. Rotating assembly; 407. Spring b; 408. Base. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] The following describes, with reference to the accompanying drawings, some embodiments of an aluminum alloy profile surface defect detection device provided by the present invention.

[0035] Example 1:

[0036] Combination Figures 1-4 As shown, the present invention provides an aluminum alloy profile surface defect detection device, including a frame 100 serving as the carrier of the entire device. A camera 102 for detecting surface defects of the aluminum alloy profile is mounted on the frame 100. An electric telescopic rod a101 and a shifting assembly 103 for moving the camera 102 are also mounted on the frame 100. A housing a104 is fixedly connected to the output end of the electric telescopic rod a101. A housing b105 is fixedly connected to the bottom of the housing a104. A corner defect adjustment mechanism 200 for detecting defects in the aluminum alloy profile is mounted on the housing b105. The adjustment mechanism 200 allows for the acquisition of images from different angles and perspectives by adjusting the angle of the camera 102. This enables more comprehensive capture of image information of the gaps on the surface of the aluminum alloy profile, allowing observation of the gap area from multiple angles, which helps to discover more subtle defects or undesirable conditions. For the detection of gap locations in aluminum alloy profiles, the adjustment of the viewing angle is crucial. This reduces the possibility of missed and false detections. Different angles and perspectives can provide different information, helping to more comprehensively and accurately assess the quality and defects in the gap area. A defect location device 300 is installed on the housing a104. The defect location device 300 can accurately record the specific location, shape, and size of each defect by marking the defect location. This is very useful for subsequent data analysis, tracking, and statistics, and can provide a basis for quality control and production process optimization. These advantages help improve the accuracy and efficiency of defect detection, as well as the convenience of subsequent processing and improvement. The frame 100 is also equipped with a changing mechanism 400 for changing the end face of the aluminum alloy profile. The changing mechanism 400 can change the end face of the aluminum alloy profile, which facilitates the machine to perform comprehensive inspection of the aluminum alloy profile and the automated inspection, which is beneficial to improving the efficiency of workers and reducing their workload.

[0037] Specifically, the defect positioning device 300 includes a label strip 304 disposed within a housing a104, an electric telescopic rod b311 for labeling rotatably mounted on a housing b105, a shifting strip 308 on the electric telescopic rod b311, a transmission block 306 hinged to the shifting strip 308, a limiting plate 307 fixedly connected within the housing a104 to adhere to the label strip 304, an electric suction cup 305 for adsorbing the label mounted on the transmission block 306, and a driving component 309 on the electric telescopic rod b311 for adapting to different labeling positions. When the free end of the electric telescopic rod b311 extends, it pushes the shifting strip 308 upwards, and the electric suction cup 305 on the transmission block 306 moves with the shifting strip 308, then the electric suction cup... The disc 305 is activated to attract the label on the label strip 304. After the camera 102 detects the defect location, the free end of the electric telescopic rod b311 descends, removing the label. Then, the electric telescopic rod b311 rotates, moving the electric suction cup 305 to the defect location. The electric telescopic rod b311 pushes the electric suction cup 305, causing the label to adhere to the defect location. The electric suction cup 305 then stops adsorbing and is reset. Applying a tear-off label allows for direct marking of the defect location, making it more conspicuous and easily identifiable. This facilitates visual inspection and analysis by inspection personnel and other relevant personnel. Furthermore, applying a tear-off label has less impact on the surface and performance of the aluminum alloy profile. The label is typically made of lightweight, thin material and will not cause color changes or affect the mechanical properties of the material.

[0038] Furthermore, the driving component 309 includes a limiting frame 3094 fixed to the free end of the electric telescopic rod b311. The end of the shifting bar 308 is inserted into the limiting frame 3094 and slidably connected thereto. A load-bearing plate is fixed inside the limiting frame 3094. A spring a3091 is fixed between the load-bearing plate and the shifting bar 308. A top rod 3092, which is slidably connected to the load-bearing plate, is fixed to the bottom of the spring a3091. A stop labeling trigger switch 3093 is installed on the inner bottom wall of the limiting frame 3094. When the electric telescopic rod b311 pushes the electric suction cup 305 to apply the label, the electric suction cup 305 contacts the end face of the aluminum alloy profile. Subsequently, the electric telescopic rod... The free end of b311 continues to extend, and then the displacement bar 308 compresses the spring a3091, causing the top rod 3092 to contact the touch switch 3093. This allows the electric suction cup 305 to automatically and quickly reset after labeling. Automatic reset after labeling ensures that the label is accurately attached to the target position on the aluminum alloy profile. This helps ensure that defect locations are correctly marked, improving defect visibility and recognition. Automatic reset reduces the need for manual intervention and significantly improves labeling speed and efficiency. After completing a labeling task, the labeling suction cup can immediately return to its initial position, ready for the next labeling operation. This saves time and labor costs and improves the overall efficiency of the production line. Due to the different distances between the electric suction cup 305 and the aluminum alloy profile, automatic sensing prevents the electric suction cup 305 from failing to reset quickly after labeling, preventing jamming.

[0039] Inside the housing a104, drive wheels a301 and b302 are rotatably mounted. Label strip 304 is driven between drive wheels a301 and b302. Inside the housing a104, a motor 303 is fixed to pull the label strip 304. The label strip 304 is fitted onto drive wheel b302, and one end of the label strip 304 is mounted on drive wheel a301. Then, the motor 303 rotates and pulls the label strip 304 to move, thereby continuously conveying labels.

[0040] A motor b310 for labeling at different positions is fixedly mounted on the housing b105. A connecting plate is fixedly connected to the output end of the motor b310. An electric telescopic rod b311 is fixedly mounted on the motor b310. The motor b310 drives the electric suction cup 305 to rotate, thereby adjusting the electric suction cup 305 to the defect position.

[0041] As illustrated in the examples, automated systems and machine vision technology can achieve automatic and precise location and marking of defects in aluminum alloy profiles. Compared to manual marking, the automated labeling process is faster and more accurate, improving inspection efficiency and production line operating efficiency. The machine vision system can accurately detect and identify the location of defects on the surface of the aluminum alloy profiles and precisely affix labels to the locations of the defects. This facilitates subsequent data analysis, troubleshooting, and quality control.

[0042] Example 2:

[0043] Combination Figure 1 , Figure 2 and Figure 5 As shown, based on Embodiment 1, the adjustment mechanism 200 includes a drive shaft 203 rotatably mounted on both sides of the housing b105. A connecting strip 205 is fixedly connected to the drive shaft 203, and the camera 102 is fixedly mounted on the connecting strip 205. The housing b105 is provided with a transmission component for adjusting the angle of the camera 102. After the inspection of the aluminum alloy profile is completed, the transmission component adjusts the angle of the camera 102, causing the camera 102 to tilt upwards and to the side. The camera 102 then descends to be located at the seam position of the aluminum alloy profile, thereby enabling the inspection of the seam corner position of the aluminum alloy profile. Adjusting the angle of the camera 102 can change the angle and direction of light incidence, allowing for more accurate detection of defects in the seam area of ​​the aluminum alloy profile. By adjusting the angle, cracks, dents, protrusions, or other uneven phenomena can be better highlighted, helping inspectors to identify defects more easily and accurately.

[0044] Specifically, the transmission assembly includes a lead screw 201 rotatably mounted inside the housing b105, a double-sided rack 202 threadedly connected to the lead screw 201, a slider fixedly connected to the double-sided rack 202, the end of the slider being slidably connected to the housing b105 via a groove, a gear a204 meshing with the double-sided rack 202 mounted on the transmission shaft 203, a worm gear 206 fixedly connected to the top of the lead screw 201, a connecting shaft 207 rotatably mounted on the housing b105, a worm 208 meshing with the worm gear 206 mounted on the connecting shaft 207, a gear b209 fixedly connected to the end of the connecting shaft 207, and a gear plate 210 corresponding to the gear b209 fixedly connected to the frame 100. The free end of the camera 102 first extends to drive the housing a104 and housing b105. As the gear descends, gear b209 first contacts the gear plate 210, causing the connecting shaft 207 to rotate. The worm 208 rotates with the connecting shaft 207, and the worm 208 drives the lead screw 201 to rotate through the worm wheel 206. The double-sided rack 202 contacts gear a204, driving the transmission shaft 203 to rotate. The transmission shaft 203 drives the camera 102 to adjust its angle through the connecting bar 205. Subsequently, the free end of the camera 102 continues to extend, so that the camera 102 and the gap position of the aluminum alloy profile are on the same plane. Then, the shifting component 103 drives the camera 102 to move horizontally, which can then be used to detect the corner position of the aluminum alloy profile, further improving the comprehensiveness of defect detection and reducing the power source, thus reducing the manufacturing cost of the equipment.

[0045] As can be seen from the embodiments, by adjusting the angle of camera 102, a clearer and more intuitive image of the gap can be obtained. This helps inspection personnel to better observe and analyze the characteristics of the gap, and to effectively record and document them. Good recording and visualization information can provide a more reliable basis for quality control and subsequent analysis.

[0046] Example 3:

[0047] Combination Figure 1 and Figure 6As shown, based on Embodiment 1, the switching mechanism 400 includes springs b407 fixed to both sides inside the frame 100. The ends of multiple springs b407 are jointly fixed to a base 408. The aluminum alloy profile is located on the base 408. Support sleeves 402 are rotatably mounted on both sides of the frame 100. Electric push rods 403 are fixed on the support sleeves 402. The free end of the electric push rods 403 is fixed to a chuck 404 for fixing the aluminum alloy profile. The frame 100 is provided with a mechanism for driving the aluminum alloy profile to rotate. The rotating component 406 and the base 408 can support the aluminum alloy profile. After one side of the aluminum alloy profile is inspected, the electric push rods 403 on both sides push the chuck 404 to fix the aluminum alloy profile. Then, the rotating component 406 drives the support sleeve 402 to rotate, turning the end face of the profile on the chuck 404. Due to the setting of the spring b407, the base 408 will not obstruct the profile when it rotates because of the elasticity of the spring b407.

[0048] Specifically, the rotating assembly 406 includes a motor c401 fixed on the frame 100, a rotating shaft 405 rotatably mounted on the frame 100, pulleys fitted on both the rotating shaft 405 and the support sleeve 402, and a belt connecting two adjacent pulleys. The motor c401 drives the rotating shaft 405 to rotate, and the rotating shaft 405 drives the support sleeve 402 to rotate through the rotating assembly 406, thereby automatically changing the end face of the profile.

[0049] Example 4:

[0050] Combination Figure 1 and Figure 7 As shown, based on Embodiment 1, the shifting component 103 includes a frame 1032 fixedly mounted on the frame 100. A motor a1031 is fixedly mounted on the frame 1032. A screw 1033 is fixedly connected to the output end of the motor a1031. A transmission bar 1034 is threadedly connected to the screw 1033. The end of the transmission bar 1034 extends through a groove to the outside of the frame 1032 and is fixedly connected to the electric telescopic rod a101. When the motor a1031 is started, it drives the screw 1033 to rotate. The rotation of the screw 1033 drives the transmission bar 1034 to move, which in turn can automatically move the camera 102.

[0051] As can be seen from the above embodiments: First, the worker places the aluminum alloy profile on the base 408. Then, the motor a1031 starts and drives the screw 1033 to rotate. The rotation of the screw 1033 drives the transmission bar 1034 to move, which in turn automatically moves the camera 102 to detect defects on the upper surface of the aluminum alloy. The image of the aluminum alloy profile illuminated by the camera 102 is transmitted to the surface defect detection system. After the surface defect detection system identifies the defect, the motor b310 drives the electric suction cup 305 to rotate, which can then adjust the electric suction cup 305 to the defect position. When the electric telescopic rod b311 pushes the electric suction cup 305 to apply the label, the electric suction cup 305 contacts the end face of the aluminum alloy profile. Then, the free end of the electric telescopic rod b311 continues to extend, and then the displacement bar 308 compresses the spring a3091, causing the top rod 3092 to contact the touch switch 3093. Thus, after labeling, the electric suction cup is automatically moved. After the 305 quick reset and the inspection of the aluminum alloy profile is completed, the free end of the camera 102 first extends, causing the housings a104 and b105 to descend. The gear b209 first contacts the gear plate 210, causing the connecting shaft 207 to rotate. The worm 208 rotates with the connecting shaft 207. The worm 208 drives the lead screw 201 to rotate through the worm wheel 206. The double-sided rack 202 contacts the gear a204, causing the transmission shaft 203 to rotate. The transmission shaft 203 drives the camera 102 to adjust its angle through the connecting bar 205. Then, the free end of the camera 102 continues to extend, so that the camera 102 and the gap position of the aluminum alloy profile are on the same plane. Then, the shifting component 103 drives the camera 102 to move horizontally, and then the corner position of the aluminum alloy profile can be inspected. After the inspection is completed, the end face of the aluminum alloy profile is changed, and then the other end face is inspected. The above steps are repeated to continuously perform the inspection.

[0052] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy profile surface defect detection device, comprising a rack (100) as a carrier of the whole device, a camera (102) for detecting surface defects of the aluminum alloy profile is arranged on the rack (100), characterized in that: The rack (100) is provided with an electric telescopic rod a (101) for driving the camera (102) to shift and a shifting assembly (103), the output end of the electric telescopic rod a (101) is fixedly connected with a shell a (104), the bottom of the shell a (104) is fixedly connected with a shell b (105), the shell b (105) is provided with an aluminum alloy profile corner position defect adjusting mechanism (200) for detection, the shell a (104) is provided with a defect positioning device (300), and the rack (100) is further provided with an exchange mechanism (400) for changing the end face of the aluminum alloy profile. The defect positioning device (300) comprises a label strip (304) arranged in the shell a (104), the shell b (105) is rotatably provided with an electric telescopic rod b (311) for labeling, the electric telescopic rod b (311) is provided with a shifting strip (308), the shifting strip (308) is hingedly provided with a transmission block (306), the shell a (104) is fixedly connected with a limiting plate (307) combined with the label strip (304), the transmission block (306) is provided with an electric suction cup (305) for adsorbing the label, and the electric telescopic rod b (311) is provided with a driving piece (309) for adapting to labeling at different positions.

2. The apparatus for detecting surface defects of an aluminum alloy profile according to claim 1, characterized by: The driving piece (309) comprises a limiting frame (3094) fixedly connected to the free end of the electric telescopic rod b (311), the end portion of the shifting strip (308) is inserted into the limiting frame (3094) and is in sliding connection with the limiting frame (3094), the limiting frame (3094) is fixedly connected with a bearing plate, the bearing plate and the shifting strip (308) are fixedly connected with a spring a (3091), the bottom of the spring a (3091) is fixedly connected with a top rod (3092) in sliding connection with the bearing plate, and the bottom wall of the limiting frame (3094) is provided with a touch switch (3093) for stopping labeling.

3. The apparatus for detecting surface defects of an aluminum alloy profile according to claim 1, characterized by: The transmission wheel a (301) and the transmission wheel b (302) are rotatably arranged in the shell a (104) respectively, the label strip (304) is transmissionally arranged between the transmission wheel a (301) and the transmission wheel b (302), and the shell a (104) is fixedly provided with a motor (303) for pulling the label strip (304) to move.

4. The apparatus for detecting surface defects of an aluminum alloy profile according to claim 1, characterized by: The shell b (105) is fixedly provided with a motor b (310) for labeling at different positions, the output end of the motor b (310) is fixedly connected with a connecting disc, and the electric telescopic rod b (311) is fixedly connected to the motor b (310).

5. The apparatus for detecting surface defects of an aluminum alloy profile according to claim 1, characterized by: The adjusting mechanism (200) comprises transmission shafts (203) rotatably arranged on both sides of the shell b (105), the transmission shafts (203) are fixedly connected with connecting strips (205), the camera (102) is fixedly connected to the connecting strips (205), and the shell b (105) is provided with a transmission assembly for adjusting the angle of the camera (102).

6. The apparatus for detecting surface defects of an aluminum alloy profile according to claim 5, characterized by: The transmission assembly includes a screw rod (201) rotatably installed in the shell b (105), a double-sided rack (202) is threadedly connected on the screw rod (201), the double-sided rack (202) is fixedly connected with a sliding block, the end of the sliding block is slidably connected with the shell b (105) through a sliding groove, a gear a (204) engaged with the double-sided rack (202) is sleeved on a transmission shaft (203), a worm wheel (206) is fixedly connected on the top end of the screw rod (201), a connecting shaft (207) is rotatably installed on the shell b (105), a worm (208) engaged with the worm wheel (206) is sleeved on the connecting shaft (207), a gear b (209) is fixedly connected on the end of the connecting shaft (207), and a toothed plate (210) corresponding to the gear b (209) is fixedly connected on the rack (100).

7. The apparatus for detecting surface defects of an aluminum alloy profile according to claim 1, characterized by: The exchange mechanism (400) includes spring b (407) fixedly connected on both sides of the rack (100), the ends of the plurality of spring b (407) are fixedly connected with a base (408), the aluminum alloy profile is located on the base (408), the support sleeve (402) is rotatably installed on both sides of the rack (100), the electric push rod (403) is fixedly connected on the support sleeve (402), the chuck (404) for fixing the aluminum alloy profile is fixedly connected on the free end of the electric push rod (403), and the rotating assembly (406) for driving the aluminum alloy profile to rotate is arranged on the rack (100).

8. The apparatus for detecting surface defects of an aluminum alloy profile according to claim 7, characterized by: The rotating assembly (406) includes the motor c (401) fixedly connected on the rack (100), the rotating shaft (405) is rotatably installed on the rack (100), the belt pulley is sleeved on the rotating shaft (405) and the support sleeve (402), and the belt is transmissionally installed between two adjacent belt pulleys.

9. The apparatus for detecting surface defects of an aluminum alloy profile according to claim 1, characterized by: The displacement assembly (103) includes the frame (1032) fixedly connected on the rack (100), the motor a (1031) is fixedly connected on the frame (1032), the output end of the motor a (1031) is fixedly connected with the screw rod (1033), the transmission bar (1034) is threadedly connected on the screw rod (1033), and the end of the transmission bar (1034) extends to the outside of the frame (1032) through the sliding groove and is fixedly connected with the electric telescopic rod a (101).

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