Infrared thermal imaging metal precision part surface defect detection device
By combining the designed workbench and inspection device, the automatic rotation and dust removal of precision metal parts are achieved, solving the problems of existing devices being unable to inspect from multiple angles and the influence of dust, thus improving inspection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG GUANGDING ELECTRONICS
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-05
AI Technical Summary
Existing infrared thermal imaging surface defect detection devices for precision metal parts cannot achieve multi-angle and multi-position detection, and dust on the metal surface affects the accuracy of detection.
The system employs a combination design of a worktable, a fixed plate, a first motor, a two-way lead screw, a limit plate, a second motor, a rotating disk, a fixture, a blower, and air ducts and nozzles to achieve automatic rotation of metal parts and dust removal, thereby improving testing efficiency and accuracy.
It enables multi-angle detection and dust removal without manual flipping, improving detection efficiency and accuracy.
Smart Images

Figure CN224203105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface defect detection technology for precision metal parts, and in particular to an infrared thermal imaging device for surface defect detection of precision metal parts. Background Technology
[0002] After the machining of precision metal parts is completed, surface defects need to be inspected to ensure the proper functioning of the parts. A common method is to use infrared thermal imaging technology to photograph the surface of the precision metal parts, which is then displayed on a terminal to ensure effective defect detection. This type of device, employing infrared imaging technology for defect detection, is called an infrared thermal imaging surface defect detection device for precision metal parts. However, current infrared thermal imaging surface defect detection devices cannot inspect products from different angles or at multiple locations, requiring workers to manually rotate the precision metal parts.
[0003] The Chinese Patent Network discloses an infrared thermal imaging surface defect detection device for precision metal components, designated "CN221007358U". This device utilizes a detection base plate with a display terminal on the left side of its top surface and a detection box fixedly connected to the right side. Multiple top grooves are formed inside the detection box on the right side of the top surface of the base plate. Electric telescopic rods are fixedly connected to the inner walls of each top groove, and ball joints are fixedly connected to the output ends of each electric telescopic rod. A product fixing plate is rotatably connected to the surfaces of the ball joints. This device allows for multi-directional detection of precision metal components. However, dust on the metal surface can affect the detection results during inspection, leading to inaccurate detection. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an infrared thermal imaging surface defect detection device for precision metal parts. Through the cooperation of a worktable, a fixed plate, a first motor, a bidirectional lead screw, a limit plate, a second motor, a rotating disk, a clamp, a blower, an air duct and an air nozzle, the device can clamp the metal parts and drive them to rotate, thereby performing multi-faceted inspection of the precision metal parts without the need for manual flipping by workers, thus improving inspection efficiency. It can also blow away dust on the surface of the precision metal parts to prevent dust from affecting the inspection results and improve the accuracy of the inspection.
[0005] This utility model also provides an infrared thermal imaging surface defect detection device for precision metal components, comprising: a worktable, a fixed plate fixedly connected to the upper surface of the worktable, a first motor fixedly connected to the outer surface of the fixed plate, a bidirectional lead screw fixedly connected to the output end of the first motor, two limiting plates rotatably connected to the outer surface of the bidirectional lead screw, a second motor fixedly connected to the outer surface of the left limiting plate, a rotating disk fixedly connected to the output end of the second motor, and a clamp fixedly connected to the outer surface of the rotating disk; a blower fixedly connected to the lower surface of the worktable, a duct fixedly connected to the output end of the blower, a nozzle fixedly connected to the end of the duct away from the output end of the blower; a bracket fixedly connected to the upper surface of the worktable, an electric push rod fixedly connected to the upper surface of the bracket, a detection plate fixedly connected to the lower surface of the electric push rod, a third motor fixedly connected to the outer surface of the detection plate, a first lead screw fixedly connected to the output end of the third motor, and an infrared thermal imaging detector rotatably connected to the outer surface of the first lead screw. The above components can clamp and rotate metal parts, enabling multi-faceted inspection of precision metal components without the need for manual flipping, thus improving inspection efficiency. They can also blow away dust from the surface of precision metal components, preventing dust from affecting the inspection results and improving the accuracy of the inspection.
[0006] According to the present invention, an infrared thermal imaging surface defect detection device for precision metal components includes a support plate fixedly connected to the lower surface of the worktable, and the lower surface of the support plate is provided with anti-slip texture. These components facilitate stable support for the entire device.
[0007] According to the present invention, an infrared thermal imaging surface defect detection device for precision metal components includes a placement plate fixedly connected to the upper surface of the worktable, and a display screen mounted on the upper surface of the placement plate. These components facilitate the understanding of detection information.
[0008] According to the present invention, an infrared thermal imaging surface defect detection device for precision metal components includes a fixed plate with an opening, an air nozzle located within the opening, and a bidirectional lead screw located within the opening. These components reduce space requirements and facilitate dust removal operations.
[0009] According to the infrared thermal imaging surface defect detection device for precision metal components described in this utility model, a rotating disk is rotatably connected to the inner surface of the limiting plate on the right side, and a clamp is provided on the inner surface of the rotating disk. These components facilitate the synchronous rotation of the two rotating disks.
[0010] According to the infrared thermal imaging surface defect detection device for precision metal components described in this utility model, a rubber pad is provided on the inner surface of the fixture. These components facilitate the protection of the precision metal components.
[0011] According to the present invention, an infrared thermal imaging surface defect detection device for precision metal components includes a telescopic rod fixedly connected to the lower surface of the support, and a detection plate fixedly connected to the lower surface of the telescopic rod. These components facilitate the stable movement of the detection plate.
[0012] According to the infrared thermal imaging surface defect detection device for precision metal components of this utility model, a limiting bearing is rotatably connected to the outer surface of the first lead screw, and a detection plate is fixedly connected to the upper surface of the limiting bearing. These components facilitate the limiting of the infrared thermal imaging detector.
[0013] Beneficial effects
[0014] 1. Compared with existing technologies, this infrared thermal imaging surface defect detection device for precision metal parts can clamp metal parts and drive them to rotate through the cooperation of a worktable, a fixed plate, a first motor, a bidirectional lead screw, a limit plate, a second motor, a rotating disk, and a fixture. This allows for multi-faceted detection of precision metal parts without the need for manual flipping by workers, thus improving detection efficiency.
[0015] 2. Compared with existing technologies, this infrared thermal imaging surface defect detection device for precision metal parts can blow away dust from the surface of precision metal parts through the cooperation of a blower, air duct and air nozzle, preventing dust from affecting the detection results and improving the accuracy of the detection. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is an overall structural diagram of the infrared thermal imaging surface defect detection device for precision metal components of this utility model;
[0018] Figure 2 This utility model relates to an infrared thermal imaging surface defect detection device for precision metal components. Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3 This is a bottom view of the connection structure of the infrared thermal imaging surface defect detection device for precision metal parts of this utility model;
[0020] Figure 4 This is a partial connection structure diagram of the infrared thermal imaging surface defect detection device for precision metal components according to this utility model.
[0021] Legend:
[0022] 1. Workbench; 2. Fixing plate; 3. First motor; 4. Two-way lead screw; 5. Limiting plate; 6. Second motor; 7. Rotary disc; 8. Fixture; 9. Blower; 10. Air duct; 11. Air nozzle; 12. Bracket; 13. Electric push rod; 14. Detection plate; 15. Third motor; 16. First lead screw; 17. Infrared thermal imaging detector; 18. Support plate; 19. Placement plate; 20. Display screen; 21. Opening; 22. Rubber pad; 23. Telescopic rod; 24. Limiting bearing. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model discloses an infrared thermal imaging surface defect detection device for precision metal components, comprising: a worktable 1, a fixed plate 2 fixedly connected to the upper surface of the worktable 1, a first motor 3 fixedly connected to the outer surface of the fixed plate 2, a bidirectional lead screw 4 fixedly connected to the output end of the first motor 3, two limiting plates 5 rotatably connected to the outer surface of the bidirectional lead screw 4, a second motor 6 fixedly connected to the outer surface of the left limiting plate 5, a rotating disk 7 fixedly connected to the output end of the second motor 6, a clamp 8 fixedly connected to the outer surface of the rotating disk 7, the rotating disk 7 rotatably connected to the inner surface of the right limiting plate 5, a clamp 8 provided on the inner surface of the rotating disk 7, a rubber pad 22 provided on the inner surface of the clamp 8, and a support plate 18 fixedly connected to the lower surface of the worktable 1, the lower surface of the support plate 18 being provided with anti-slip texture.
[0025] Specifically, the first motor 3 starts, driving the double lead screw 4 to rotate. The rotation of the double lead screw 4 causes the two limit plates 5 to adjust the distance, clamping the metal part through the fixture 8. During inspection, the second motor 6 starts, driving the rotating disk 7 to rotate. The rotating disk 7 drives the fixture 8 to rotate, thereby rotating the metal part and performing defect inspection on multiple sides of the metal part. To prevent the fixture 8 from damaging the metal part, a rubber pad 22 is provided on the inner surface of the fixture 8. The left rotating disk 7 drives the right rotating disk 7 to rotate synchronously.
[0026] Reference Figure 1 , Figure 3 and Figure 4A blower 9 is fixedly connected to the lower surface of the workbench 1. A duct 10 is fixedly connected to the output end of the blower 9. A nozzle 11 is fixedly connected to the end of the duct 10 away from the output end of the blower 9. An opening 21 is provided on the fixed plate 2. The nozzle 11 is located in the opening 21. A two-way lead screw 4 is located in the opening 21. A bracket 12 is fixedly connected to the upper surface of the workbench 1. An electric push rod 13 is fixedly connected to the upper surface of the bracket 12. A detection plate 14 is fixedly connected to the lower surface of the electric push rod 13. A detection plate 14 is fixedly connected to the lower surface of the bracket 12. There is a telescopic rod 23, and a detection plate 14 is fixedly connected to the lower surface of the telescopic rod 23. A third motor 15 is fixedly connected to the outer surface of the detection plate 14. A first lead screw 16 is fixedly connected to the output end of the third motor 15. A limit bearing 24 is rotatably connected to the outer surface of the first lead screw 16. The detection plate 14 is fixedly connected to the upper surface of the limit bearing 24. An infrared thermal imaging detector 17 is rotatably connected to the outer surface of the first lead screw 16. A placement plate 19 is fixedly connected to the upper surface of the workbench 1. A display screen 20 is set on the upper surface of the placement plate 19.
[0027] Specifically, before the test, the blower 9 is started, and it blows dust off the metal parts through the nozzle 11 to clean the dust off the metal parts. After cleaning, the electric push rod 13 pushes the detection plate 14 down to the appropriate position, and the third motor 15 is started, which drives the first lead screw 16 to rotate. The rotation of the first lead screw 16 drives the infrared thermal imaging detector 17 to move on the first lead screw 16, thereby detecting the metal parts. The detection information is viewed on the display screen 20.
[0028] Working principle: When using this device, the first motor 3 starts, which drives the double lead screw 4 to rotate. The rotation of the double lead screw 4 drives the two limit plates 5 to adjust the distance, clamping the metal part through the fixture 8. During inspection, the second motor 6 starts, which drives the rotating disk 7 to rotate. The rotating disk 7 drives the fixture 8 to rotate, thereby rotating the metal part and performing defect inspection on multiple sides of the metal part. To prevent the fixture 8 from damaging the metal part, a rubber pad 22 is provided on the inner surface of the fixture 8. The left rotating disk 7 drives the right rotating disk 7 to rotate synchronously.
[0029] Before testing, blower 9 is started, which blows dust off the metal parts through nozzle 11. After cleaning, electric push rod 13 pushes the detection plate 14 down to the appropriate position, and third motor 15 is started, which drives the first lead screw 16 to rotate. The rotation of the first lead screw 16 drives the infrared thermal imaging detector 17 to move on the first lead screw 16, thereby detecting the metal parts. The detection information is displayed on display screen 20.
[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An infrared thermal imaging device for detecting surface defects in precision metal components, characterized in that, include: A workbench (1) is fixedly connected to a fixed plate (2) on its upper surface. A first motor (3) is fixedly connected to the outer surface of the fixed plate (2). A bidirectional lead screw (4) is fixedly connected to the output end of the first motor (3). Two limiting plates (5) are rotatably connected to the outer surface of the bidirectional lead screw (4). A second motor (6) is fixedly connected to the outer surface of the left limiting plate (5). A rotating disk (7) is fixedly connected to the output end of the second motor (6). A clamp (8) is fixedly connected to the outer surface of the rotating disk (7). A blower (9) is fixedly connected to the lower surface of the workbench (1). A duct (10) is fixedly connected to the output end of the blower (9). A nozzle (11) is fixedly connected to the end of the duct (10) away from the output end of the blower (9). A bracket (12) is fixedly connected to the upper surface of the workbench (1). An electric push rod (13) is fixedly connected to the upper surface of the bracket (12). A detection plate (14) is fixedly connected to the lower surface of the electric push rod (13). A third motor (15) is fixedly connected to the outer surface of the detection plate (14). A first lead screw (16) is fixedly connected to the output end of the third motor (15). An infrared thermal imaging detector (17) is rotatably connected to the outer surface of the first lead screw (16).
2. The infrared thermal imaging surface defect detection device for precision metal components according to claim 1, characterized in that, A support plate (18) is fixedly connected to the lower surface of the workbench (1), and the lower surface of the support plate (18) is provided with anti-slip texture.
3. The infrared thermal imaging surface defect detection device for precision metal components according to claim 1, characterized in that, The workbench (1) has a placement plate (19) fixedly connected to its upper surface, and the placement plate (19) has a display screen (20) on its upper surface.
4. The infrared thermal imaging surface defect detection device for precision metal components according to claim 1, characterized in that, The fixing plate (2) is provided with an opening (21), the air nozzle (11) is located in the opening (21), and the bidirectional lead screw (4) is located in the opening (21).
5. The infrared thermal imaging surface defect detection device for precision metal components according to claim 1, characterized in that, The inner surface of the limiting plate (5) on the right is rotatably connected to the rotating disk (7), and the inner surface of the rotating disk (7) is provided with a clamp (8).
6. The infrared thermal imaging surface defect detection device for precision metal components according to claim 1, characterized in that, A rubber pad (22) is provided on the inner surface of the clamp (8).
7. The infrared thermal imaging surface defect detection device for precision metal components according to claim 1, characterized in that, A telescopic rod (23) is fixedly connected to the lower surface of the bracket (12), and a detection plate (14) is fixedly connected to the lower surface of the telescopic rod (23).
8. The infrared thermal imaging surface defect detection device for precision metal components according to claim 1, characterized in that, The outer surface of the first lead screw (16) is rotatably connected to a limit bearing (24), and the upper surface of the limit bearing (24) is fixedly connected to a detection plate (14).
Citation Information
Patent Citations
An infrared thermal imaging surface defect detection device for metal precision parts
CN221007358U