Aluminum block surface defect detection device

Abstract

This utility model relates to the field of defect detection technology and discloses a device for detecting surface defects in aluminum blocks. The device includes a conveyor belt, a housing fixedly connected to the top surface of the conveyor belt, an infrared emitter slidably connected to the inner wall of the housing, a rotating shaft fixedly connected to one end of the infrared emitter, a worm gear fixedly connected to the outer wall of the rotating shaft, a sliding rod disposed in the middle of the rotating shaft, a lead screw threadedly connected to the inner wall of the sliding rod, both ends of the lead screw being fixedly connected to the outer wall of the housing via fixing blocks, a worm gear rotatably connected to the outer wall of the sliding rod via an L-shaped block, and the outer wall of the worm gear meshing with the outer wall of the worm gear. An infrared receiver is disposed on the top of the housing. In this utility model, infrared rays are emitted by the infrared emitter, reflected by the surface of the aluminum block to the receiver. If the aluminum block is defect-free, the receiver can receive the signal; otherwise, it cannot. Rotatable position adjustment knobs and angle adjustment knobs control the infrared ray path.

Description

Technical Field

[0001] This utility model relates to the field of defect detection technology, and in particular to a device for detecting defects on the surface of aluminum blocks. Background Technology

[0002] Aluminum is a valuable and common metal that plays an important role in both daily life and industry. It has a bright silvery-white appearance with a metallic luster, is lightweight, and possesses good strength and toughness. Aluminum is chemically reactive, readily reacting with oxygen in the air to form a dense aluminum oxide film on its surface. This film isolates it from air and moisture, giving it excellent corrosion resistance. Aluminum's corrosion resistance, good electrical and thermal conductivity, and ease of processing and shaping make it widely used in various fields.

[0003] Surface defect detection is crucial in the production and application of aluminum blocks. When aluminum blocks are used in aerospace, automotive manufacturing, and architectural decoration, these industries have extremely high quality requirements. Even minor surface defects can affect the performance and aesthetics of the aluminum blocks. Currently, surface defect detection of aluminum blocks mainly relies on direct visual observation of the aluminum block surface and judgment based on experience. This method is simple and easy to implement, but it has significant limitations. It can only detect relatively obvious defects and is difficult to detect tiny scratches and shallow cracks. The results of visual inspection are easily affected by the inspector's eyesight, experience, and fatigue level, making it difficult to guarantee the accuracy and objectivity of the inspection. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an aluminum block surface defect detection device, which aims to improve the existing technology of directly observing the aluminum block surface with the naked eye and judging whether there are defects based on experience. This method is simple and easy to implement, but it has great limitations. It can only detect relatively obvious defects, and it is difficult to detect small scratches and shallow cracks. The results of visual inspection are easily affected by the inspector's eyesight, experience and fatigue, making it difficult to guarantee the accuracy and objectivity of the inspection.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an aluminum block surface defect detection device, comprising a conveyor belt, a housing fixedly connected to the top surface of the conveyor belt, an infrared emitter slidably connected to the inner wall of the housing, a rotating shaft fixedly connected to one end of the infrared emitter, a worm gear fixedly connected to the outer wall of the rotating shaft, a sliding rod provided in the middle of the rotating shaft, a lead screw threadedly connected to the inner wall of the sliding rod, both ends of the lead screw being fixedly connected to the outer wall of the housing through fixing blocks, a worm gear rotatably connected to the outer wall of the sliding rod through an L-shaped block, the outer wall of the worm gear meshing with the outer wall of the worm wheel, an infrared receiver provided at the top of the housing, and a cleaning mechanism provided at the top of the conveyor belt for cleaning.

[0006] As a further description of the above technical solution:

[0007] The cleaning mechanism includes a mounting block, the outer wall of which is fixedly connected to the outer wall of the conveyor belt. A screw is rotatably connected to the inner wall of the mounting block, a sleeve is threadedly connected to the outer wall of the screw, a central shaft is slidably connected to the outer wall of the sleeve, and a rotating rod is rotatably connected to the outer wall of the central shaft. Multiple brushes are arranged between two adjacent rotating rods. A spring is provided on the outer wall of the sleeve, and an adjustment knob is threadedly connected to the upper end of the screw.

[0008] As a further description of the above technical solution:

[0009] The bottom surface of the conveyor belt is fixedly connected to a support leg, and the bottom surface of the support leg is fixedly connected to a caster wheel.

[0010] As a further description of the above technical solution:

[0011] A guide rail is fixedly connected between the two adjacent fixed blocks, and one end of the lead screw passes through the outer wall of the fixed block and is fixedly connected to a position adjustment knob.

[0012] As a further description of the above technical solution:

[0013] An extension rod is fixedly connected to the upper end of the worm gear, and an angle adjustment knob is fixedly connected to the top of the extension rod.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the outer shell is fixedly connected to a protective shell, and the top of the protective shell is provided with a second sliding groove.

[0016] As a further description of the above technical solution:

[0017] A pressure adjustment knob is fixedly connected to the top of the screw, and a sliding groove is provided on the outer wall of the housing.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the sleeve is provided with a limiting groove, and the bottom surface of the sleeve is fixedly connected to a limiting block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, an aluminum block is placed on a conveyor belt for transport. When the aluminum block enters the housing, the infrared rays emitted by the infrared emitter are reflected by the surface of the aluminum block to the infrared receiver. If the surface of the aluminum block is free of defects, the infrared receiver can receive the infrared signal; if there are defects, the infrared signal will not be reflected to the infrared receiver. By rotating the position adjustment knob, the lead screw is driven to rotate, and the slide bar engaged with the outer wall of the lead screw moves, thereby adjusting the position of the infrared emitter. By rotating the angle adjustment knob, the angle adjustment knob drives the worm gear to rotate, and the worm gear drives the worm wheel to rotate, that is, the infrared emitter rotates, thereby adjusting the illumination angle of the infrared emitter. By adjusting the position and illumination angle of the infrared emitter, the path of the infrared rays can be precisely controlled, enabling the detection of aluminum blocks of various thicknesses.

[0022] 2. In this utility model, when the aluminum block starts moving at the beginning of the conveyor belt, it passes through the brush. The rotating rod is tilted so that the aluminum block can enter the lower end of the brush. By rotating the pressure adjustment knob, the screw rotates, and the sleeve connected to the thread on the outer wall of the screw moves up and down to adjust the height of the brush. By rotating the adjustment knob to compress the spring, the downward pressure of the brush can be adjusted, which can adapt to the cleaning of aluminum blocks of various sizes and types. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the aluminum block surface defect detection device proposed in this utility model;

[0024] Figure 2 This is a partial structural diagram of the outer shell of the aluminum block surface defect detection device proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of the lead screw of the aluminum block surface defect detection device proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of the infrared receiver of the aluminum block surface defect detection device proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the brush used in the aluminum block surface defect detection device proposed in this utility model;

[0028] Figure 6 This is a partial structural diagram of the screw of the aluminum block surface defect detection device proposed in this utility model.

[0029] Legend:

[0030] 1. Conveyor belt; 2. Cleaning mechanism; 201. Mounting block; 202. Screw; 203. Sleeve; 204. Central shaft; 205. Spring; 206. Adjustment knob; 207. Rotating rod; 208. Brush; 3. Housing; 4. Infrared transmitter; 5. Rotating shaft; 6. Worm gear; 7. L-shaped block; 8. Worm; 9. Fixing block; 10. Lead screw; 11. Slide rod; 12. Infrared receiver; 13. Extension rod; 14. Angle adjustment knob; 15. Slide groove one; 16. Guide rail; 17. Position adjustment knob; 18. Limit groove; 19. Limit block; 20. Pressure adjustment knob; 21. Support leg; 22. Protective shell; 23. Universal wheel; 24. Slide groove two. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model provides an aluminum block surface defect detection device, including a conveyor belt 1, a housing 3 fixedly connected to the top surface of the conveyor belt 1, an infrared emitter 4 slidably connected to the inner wall of the housing 3, a rotating shaft 5 fixedly connected to one end of the infrared emitter 4, a worm gear 6 fixedly connected to the outer wall of the rotating shaft 5, a sliding rod 11 provided in the middle of the rotating shaft 5, a lead screw 10 threadedly connected to the inner wall of the sliding rod 11, the two ends of the lead screw 10 being fixedly connected to the outer wall of the housing 3 through fixing blocks 9, a worm 8 being rotatably connected to the outer wall of the sliding rod 11 through an L-shaped block 7, the outer wall of the worm 8 being meshed with the outer wall of the worm gear 6, an infrared receiver 12 provided at the top of the housing 3, and a cleaning mechanism 2 provided at the top of the conveyor belt 1 for cleaning.

[0033] Specifically, a housing 3 is fixedly connected to the top surface of the conveyor belt 1. An infrared emitter 4 is slidably connected to the inner wall of the housing 3. One end of the infrared emitter 4 is fixedly connected via a rotating shaft 5. A worm gear 6 is fixedly connected to the outer wall of the rotating shaft 5. A sliding rod 11 is provided in the middle of the rotating shaft 5. A lead screw 10 is connected to the inner wall of the sliding rod 11 by a thread. The two ends of the lead screw 10 are fixedly connected to the outer wall of the housing 3 by fixing blocks 9 to ensure its stability. A worm 8 is rotatably connected to the outer wall of the sliding rod 11 via an L-shaped block 7. The outer wall of the worm 8 meshes with the outer wall of the worm gear 6. An infrared receiver 12 is provided on the top of the housing 3 to receive infrared rays emitted from the infrared emitter 4 and detect whether there are defects on the surface of the aluminum block.

[0034] Please see the appendix Figure 4 - Appendix Figure 6 The cleaning mechanism 2 includes a mounting block 201. The outer wall of the mounting block 201 is fixedly connected to the outer wall of the conveyor belt 1. A screw 202 is rotatably connected to the inner wall of the mounting block 201. A sleeve 203 is threadedly connected to the outer wall of the screw 202. A central shaft 204 is slidably connected to the outer wall of the sleeve 203. A rotating rod 207 is rotatably connected to the outer wall of the central shaft 204. Multiple brushes 208 are arranged between adjacent rotating rods 207. A spring 205 is arranged on the outer wall of the sleeve 203. An adjustment knob 206 is threadedly connected to the upper end of the screw 202.

[0035] Specifically, the outer wall of the mounting block 201 is fixedly connected to the outer wall of the conveyor belt 1 to ensure that the cleaning mechanism 2 can be stably installed on the conveyor belt 1. A screw 202 is rotatably connected to the inner wall of the mounting block 201, allowing the screw 202 to rotate within the mounting block 201. The outer wall of the screw 202 has threads that match the threads on the inner wall of the sleeve 203, allowing the sleeve 203 to be threaded along the outer wall of the screw 202. A central shaft 204 is slidably connected to the outer wall of the sleeve 203, allowing the central shaft 204 to slide freely within the sleeve 203. A rotating rod 207 is rotatably connected to the outer wall of the central shaft 204. The rotating rod 207 can rotate around the central axis 204. Multiple brushes 208 are arranged between adjacent rotating rods 207. When the rotating rod 207 rotates, the brushes 208 can contact the aluminum block to achieve the purpose of cleaning. The outer wall of the sleeve 203 is provided with a spring 205. The function of the spring 205 is to provide a downward pressure to the sleeve 203 to ensure that the brushes 208 can be in close contact with the surface of the aluminum block for cleaning. The upper end of the screw 202 is threadedly connected to an adjustment knob 206. By rotating the adjustment knob 206, the pressure of the spring 205 can be adjusted, thereby adjusting the contact pressure between the brushes 208 and the aluminum block to adapt to different cleaning needs.

[0036] Please see the appendix Figure 1 - Appendix Figure 3 The bottom surface of the conveyor belt 1 is fixedly connected to the support leg 21, the bottom surface of the support leg 21 is fixedly connected to the universal wheel 23, the two adjacent fixed blocks 9 are fixedly connected to the guide rail 16, one end of the lead screw 10 passes through the outer wall of the fixed block 9 and is fixedly connected to the position adjustment knob 17, the upper end of the worm gear 8 is fixedly connected to the extension rod 13, and the top of the extension rod 13 is fixedly connected to the angle adjustment knob 14.

[0037] Specifically, the bottom surface of the conveyor belt 1 is fixedly connected to a support leg 21, and the bottom surface of the support leg 21 is fixedly connected to a caster wheel 23, so that the entire mechanism can move and be positioned. A guide rail 16 is fixedly connected between the two fixed blocks 9. The guide rail 16 is designed to guide and support, ensuring stability and accuracy. One end of the lead screw 10 passes through the outer wall of the fixed block 9, and a position adjustment knob 17 is fixedly connected to this end of the lead screw 10. By rotating the position adjustment knob 17, the position of the lead screw 10 can be easily adjusted, thereby adjusting the position of the infrared emitter 4. An extension rod 13 is fixedly connected to the upper end of the worm gear 8, and an angle adjustment knob 14 is fixedly connected to the top of the extension rod 13. By rotating the angle adjustment knob 14, the angle between the extension rod 13 and the worm gear 8 can be easily adjusted, thereby adjusting the angle of the infrared emitter 4 to adapt to different aluminum blocks.

[0038] Please see the appendix Figure 4 - Appendix Figure 6 The outer wall of the outer shell 3 is fixedly connected to a protective shell 22. The top of the protective shell 22 is provided with a second sliding groove 24. The top of the screw 202 is fixedly connected to a pressure adjustment knob 20. The outer wall of the outer shell 3 is provided with a first sliding groove 15. The outer wall of the sleeve 203 is provided with a limit groove 18. The bottom surface of the sleeve 203 is fixedly connected to a limit block 19.

[0039] Specifically, a protective shell 22 is fixedly connected to the outer wall of the outer shell 3. The top of the protective shell 22 is designed with a second sliding groove 24. A pressure adjustment knob 20 is fixedly connected to the top of the screw 202, which allows for convenient pressure adjustment. A first sliding groove 15 is also provided on the outer wall of the outer shell 3, which provides movement space. A limit groove 18 is provided on the outer wall of the sleeve 203. The limit groove 18 is used to limit the movement range of the sleeve 203 to ensure that it does not rotate. A limit block 19 is fixedly connected to the bottom surface of the sleeve 203, which further ensures the stability and safety of the sleeve 203.

[0040] Working principle: The aluminum block is placed on the conveyor belt 1 for conveying. When the aluminum block enters the housing 3, the infrared rays emitted by the infrared emitter 4 are reflected by the surface of the aluminum block to the infrared receiver 12. If the surface of the aluminum block is free of defects, the infrared receiver 12 can receive the infrared signal. If there are defects, the infrared rays will not be reflected to the infrared receiver 12. By rotating the position adjustment knob 17, the lead screw 10 is rotated. The slide rod 11 engaged with the outer wall of the lead screw 10 moves, which can adjust the position of the infrared emitter 4. By rotating the angle adjustment knob 14, the angle adjustment knob 14 drives the worm gear 8 to rotate. The worm gear 8 drives the worm wheel 6 to rotate, that is, the infrared emitter 4 rotates, thereby adjusting the illumination angle of the infrared emitter 4. By adjusting the position and illumination angle of the infrared emitter 4, the path of the infrared rays can be precisely controlled, so as to detect aluminum blocks of various thicknesses.

[0041] When the aluminum block starts moving at the beginning of the conveyor belt 1, it passes the brush 208. The rotating rod 207 is tilted so that the aluminum block can enter the lower end of the brush 208. By rotating the pressure adjustment knob 20, the screw 202 is rotated. The sleeve 203 connected to the outer wall of the screw 202 moves up and down, which can adjust the height of the brush 208. By rotating the adjustment knob 206 to compress the spring 205, the downward pressure of the brush 208 can be adjusted, which can adapt to the cleaning of aluminum blocks of various sizes and types.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Apparatus for detecting surface defects of aluminium blocks, comprising a conveyor belt (1), characterised in that: The top surface of the conveyor belt (1) is fixedly connected to a housing (3). An infrared transmitter (4) is slidably connected to the inner wall of the housing (3). One end of the infrared transmitter (4) is fixedly connected to a rotating shaft (5). A worm gear (6) is fixedly connected to the outer wall of the rotating shaft (5). A sliding rod (11) is provided in the middle of the rotating shaft (5). A lead screw (10) is threadedly connected to the inner wall of the sliding rod (11). The two ends of the lead screw (10) are fixedly connected to the outer wall of the housing (3) through fixing blocks (9). A worm (8) is rotatably connected to the outer wall of the sliding rod (11) through an L-shaped block (7). The outer wall of the worm (8) meshes with the outer wall of the worm gear (6). An infrared receiver (12) is provided on the top of the housing (3). A cleaning mechanism (2) is provided on the top of the conveyor belt (1). The cleaning mechanism (2) is used for cleaning.

2. The aluminum block surface defect detection apparatus according to claim 1, characterized by: The cleaning mechanism (2) includes a mounting block (201), the outer wall of which is fixedly connected to the outer wall of the conveyor belt (1), a screw (202) is rotatably connected to the inner wall of the mounting block (201), a sleeve (203) is threadedly connected to the outer wall of the screw (202), a central shaft (204) is slidably connected to the outer wall of the sleeve (203), a rotating rod (207) is rotatably connected to the outer wall of the central shaft (204), a plurality of brushes (208) are arranged between adjacent rotating rods (207), a spring (205) is arranged on the outer wall of the sleeve (203), and an adjustment knob (206) is threadedly connected to the upper end of the screw (202).

3. The apparatus for detecting surface defects of an aluminum block according to claim 1, characterized by: The bottom surface of the conveyor belt (1) is fixedly connected to a support leg (21), and the bottom surface of the support leg (21) is fixedly connected to a caster wheel (23).

4. The apparatus for detecting surface defects of an aluminum block according to claim 1, characterized by: A guide rail (16) is fixedly connected between the two adjacent fixed blocks (9), and one end of the lead screw (10) passes through the outer wall of the fixed block (9) and is fixedly connected to a position adjustment knob (17).

5. The apparatus for detecting surface defects of an aluminum block according to claim 1, characterized by: An extension rod (13) is fixedly connected to the upper end of the worm gear (8), and an angle adjustment knob (14) is fixedly connected to the top of the extension rod (13).

6. The apparatus for detecting surface defects of an aluminum block according to claim 1, characterized by: The outer wall of the outer shell (3) is fixedly connected to a protective shell (22), and the top of the protective shell (22) is provided with a sliding groove (24).

7. The apparatus for detecting surface defects of an aluminum block according to claim 2, characterized by: The top of the screw (202) is fixedly connected to a pressure adjustment knob (20), and the outer wall of the housing (3) is provided with a sliding groove (15).

8. The apparatus for detecting surface defects of an aluminum block according to claim 2, characterized by: The outer wall of the sleeve (203) is provided with a limiting groove (18), and the bottom surface of the sleeve (203) is fixedly connected to a limiting block (19).

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