Titanium roller surface laser detection device

Abstract

The utility model discloses a titanium roller surface laser detection device which comprises a machine frame, and at least two laser emitters are installed on the machine frame. The rotary scanning mechanism comprises a base and a precise sliding table assembly arranged on the upper side of the base, a titanium roller rotary supporting seat used for containing a titanium roller is installed at the position, opposite to the laser transmitter, of the upper side of the precise sliding table assembly, and a titanium roller rotary driving assembly is connected to the titanium roller rotary supporting seat in a matched mode; the image acquisition assembly is arranged near the rotary scanning mechanism and is used for acquiring an image of the laser emitted by the laser emitter irradiated on the titanium roller; the data processing terminal is electrically connected with the image acquisition assembly, the laser emitters and the titanium roller rotation driving assembly, the multiple laser emitters are arranged to scan the titanium roller from different angles, a detection blind area is eliminated, the precision of axial movement and rotation of the titanium roller can be achieved by arranging the precise sliding table assembly and the titanium roller rotation driving assembly, and the detection accuracy of the titanium roller is improved. Detection speed is high and operation is simple.

Description

Technical Field

[0001] This utility model relates to the technical field of metal surface inspection equipment, specifically a laser inspection device for titanium roller surfaces. Background Technology

[0002] Titanium rollers are crucial components in the electrolytic copper foil production industry. After a period of use, they may develop abnormalities such as scratches and dents. Traditional inspection methods, such as contact measurement and optical interferometry, are required, but these methods suffer from slow measurement speed, complex operation, and stringent environmental requirements. Therefore, a non-contact, rapid, and accurate inspection method is needed to monitor the surface flatness and appearance defects of titanium rollers. This method can also be used for real-time monitoring of titanium rollers during production, providing strong support for electrolytic copper foil production. Utility Model Content

[0003] This invention provides a laser detection device for the surface of titanium rollers, which can solve the problems of slow surface detection, complex operation, and high requirements for the measurement environment in existing titanium rollers.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a laser inspection device for the surface of a titanium roller, comprising a frame on which at least two laser emitters are mounted; a rotating scanning mechanism, comprising a base and a precision slide assembly disposed on the upper side of the base, wherein a titanium roller rotation support for placing the titanium roller is mounted on the upper side of the precision slide assembly opposite to the laser emitters, and a titanium roller rotation drive assembly is connected to the titanium roller rotation support assembly; an image acquisition assembly disposed near the rotating scanning mechanism to acquire images of the titanium roller illuminated by the laser emitted from the laser emitters; and a data processing terminal electrically connected to the image acquisition assembly, the laser emitters, and the titanium roller rotation drive assembly. By setting multiple laser emitters to scan the titanium roller from different angles, blind spots in the detection are eliminated. By setting the precision slide assembly and the titanium roller rotation drive assembly, the axial movement and rotation of the titanium roller can be made precise, the detection speed is high, and the operation is simple.

[0005] Preferably, there are two laser emitters, symmetrically installed on both sides of the frame, which can scan the titanium roller from two symmetrical directions without blind spots.

[0006] Preferably, each of the laser emitters is equipped with a laser power regulator, which can adjust the power of the laser emitter as needed.

[0007] Preferably, the surface of the laser emitter is equipped with a heat dissipation fin assembly, which allows the laser emitter to dissipate heat effectively during long-term operation.

[0008] Preferably, the laser emitters are 532nm line lasers and 650nm line lasers, respectively. The two wavelengths of lasers can cover various surface defects without any omissions.

[0009] Preferably, all laser emitters are connected to the frame via rotating supports. The orientation of the laser emitters can be adjusted by rotating the supports to accommodate different titanium rollers.

[0010] Preferably, the titanium roller rotation drive assembly includes a drive motor mounted on the upper side of the precision slide assembly and a bidirectional synchronous belt drive assembly connecting the titanium roller and the drive motor. The bidirectional synchronous belt drive assembly has a relatively small transmission error, ensuring the accuracy of the titanium roller rotation.

[0011] Preferably, the precision slide assembly includes a slide rail mounted on the upper side of the base and a slide table mounted on the slide rail. A transmission screw is horizontally mounted on the upper side of the base. One end of the transmission screw is connected to the slide table motor. The slide table is connected to the transmission screw through a screw nut. The slide table motor drives the transmission screw to rotate, ensuring the accuracy of the horizontal movement of the slide table. This allows the axial movement and rotation of the titanium roller to be precisely coordinated, eliminating blind spots in the inspection.

[0012] Preferably, the image acquisition component includes at least one industrial camera and an anti-reflective filter mounted on the industrial camera. The anti-reflective filter can block light other than the laser emitted by the laser emitter, thereby improving the accuracy of displaying defects in the acquired image.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] With a simple structure and a non-contact detection method, this device avoids damage to the titanium roller. It uses multiple laser emitters to scan the titanium roller from different angles, eliminating blind spots. Through a combination of titanium roller rotation and slide translation, the device can complete full-surface scanning in a short time, improving efficiency by more than 90%. Moreover, by setting up a precision slide assembly and a titanium roller rotation drive assembly, it can achieve high precision in the axial movement and rotation of the titanium roller, resulting in high detection speed and simple operation. Attached Figure Description

[0015] Figure 1 This is the main view structural diagram of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model.

[0017] Figure label:

[0018] 1. Frame; 11. Rotary support; 2. Laser emitter; 3. Rotary scanning mechanism; 31. Titanium roller; 32. Bidirectional synchronous belt drive assembly; 33. Drive motor; 34. Precision slide assembly; 34. Slide table; 35. Base; 36. Slide rail; 37. Drive screw; 38. Slide table motor; 39. Titanium roller rotary support; 4. Image acquisition assembly; 41. Industrial camera; 42. Anti-reflective filter. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This invention addresses the problems of existing titanium roller surface inspection methods, such as low speed, complex operation, and high requirements for the measurement environment. For example... Figure 1-2 As shown, the following technical solution is provided: a laser inspection device for the surface of a titanium roller, comprising a frame 1 on which at least two laser emitters 2 are mounted; a rotating scanning mechanism 3, comprising a base 35 and a precision slide assembly 34 disposed on the upper side of the base 35, wherein a titanium roller rotation support 39 for placing a titanium roller 31 is mounted on the upper side of the precision slide assembly 34 opposite to the laser emitters 2, and a titanium roller rotation drive assembly is connected to the titanium roller rotation support 39; an image acquisition assembly 4 disposed near the rotating scanning mechanism 3 to acquire images of the titanium roller 31 illuminated by the laser emitted from the laser emitters 2; and a data processing terminal electrically connected to the image acquisition assembly 4, the laser emitters 2, and the titanium roller rotation drive assembly. By setting multiple laser emitters 2 to scan the titanium roller from different angles, blind spots in the detection are eliminated. By setting the precision slide assembly 34 and the titanium roller rotation drive assembly, the axial movement and rotation of the titanium roller 31 can be made precise, the detection speed is high, and the operation is simple.

[0021] Specifically, rubber shock-absorbing pads and counterweights can be installed at the bottom of the frame 1 to isolate workshop floor vibrations (such as vibrations from stamping equipment) and prevent laser spot deviation caused by vibration (accuracy impact ≤ ±1μm). Pneumatic grippers can be installed on the titanium roller rotating support 39 to axially limit the end shaft of the titanium roller 31. This is mainly for centering the titanium roller 31 placed on the titanium roller rotating support 39, and is compatible with Φ80-1000mm titanium rollers 31. The clamping time is ≤30 seconds, and no manual centering adjustment is required.

[0022] In this embodiment, two laser emitters 2 are symmetrically mounted on both sides of the frame 1, allowing for scanning of the titanium roller 31 from two symmetrical directions without blind spots. These two laser emitters 2 are a 532nm line laser and a 650nm line laser, respectively. Both wavelengths can cover various surface defects without omission. The 532nm line laser is a green laser; its short wavelength is sensitive to microscopic surface defects (such as 5μm-level scratches and cracks), and can capture nanoscale surface undulations. The 650nm line laser is a red laser; its long wavelength penetrates shallow materials to detect subsurface defects (such as shallow pits and material delamination).

[0023] Both laser emitters 2 form straight light bands on the surface of the titanium roller 31. As the titanium roller 31 moves and rotates axially, the degree of distortion of the straight light band when it encounters a defect directly corresponds to the defect depth (e.g., a 1mm pit will cause the light band to shift by about 0.5mm). The three-dimensional coordinate positioning of the defect (X / Y axis position, Z axis depth) is achieved through pixel calculation by the image acquisition component 4. Each laser emitter 2 is equipped with a laser power regulator, which can adjust the power of the laser emitter 2 as needed. The adjustable power range is 5-100mW.

[0024] In addition, the surface of the laser emitter 2 is equipped with a heat dissipation fin assembly, which can fully dissipate heat when the laser emitter 2 is working for a long time. The heat dissipation fin assembly can be installed on the upper or lower side of the laser emitter 2, so that the surface temperature of the laser emitter 2 is controlled below 40℃ (the optimal operating temperature of the laser crystal is 20-30℃). In conjunction with the temperature control module, the power stability (fluctuation ≤ ±5%) is ensured during long-term continuous operation, avoiding the frequency doubling efficiency reduction caused by overheating of traditional solid-state lasers.

[0025] The data processing terminal may include common detection and processing modules such as PLC control module and image processing module. The PLC control module can control the specific working process of image acquisition component 4, rotary scanning mechanism 3 and laser emitter 2, such as the movement of precision slide assembly 34, rotation of titanium roller 31 and adjustment of laser emitter 2 power. The image processing module can automatically identify the images acquired during the detection of titanium roller 31 and mark the surface defects. The specific structure and principle of the image processing module are existing technologies and will not be elaborated here.

[0026] In this embodiment, all laser emitters 2 are connected to the frame 1 via a rotating support 11. The orientation of the laser emitter 2 can be adjusted by rotating the rotating support 11 to correspond to different titanium rollers 31. The rotation angle of the rotating support 11 can be set to ±15°.

[0027] In this embodiment, the titanium roller rotation drive assembly includes a drive motor 33 mounted on the upper side of the precision slide assembly 34 and a bidirectional synchronous belt drive assembly 32 connecting the titanium roller 31 and the drive motor 33. The transmission error of the bidirectional synchronous belt drive assembly 32 is relatively small, ensuring the accuracy of the rotation of the titanium roller 31. Specifically, the transmission error of the bidirectional synchronous belt drive assembly 32 is ≤0.01mm, which is significantly lower than that of traditional belt drives (error 0.1-0.5mm). This avoids missed detections caused by overlapping or excessively large intervals of scanning lines, ensuring that the spacing between each laser light band is ≤0.2mm. An internal encoder can be installed on the drive motor 33 to record the rotation angle of the titanium roller in real time. Combined with the slide position data, full traceability of the spiral scanning trajectory can be achieved, and any defect can be mapped to the scanning coordinates.

[0028] In this embodiment, the precision slide assembly 34 includes a slide rail 36 mounted on the upper side of the base 35 and a slide 341 mounted on the slide rail 36. A transmission screw 37 is horizontally mounted on the upper side of the base 35. One end of the transmission screw 37 is connected to the slide motor 38. The slide 341 is connected to the transmission screw 37 through a screw nut. The slide motor 38 drives the transmission screw 37 to rotate, ensuring the accuracy of the horizontal movement of the slide 341. This allows the axial movement and rotation of the titanium roller 31 to be precisely coordinated, eliminating blind spots in the detection.

[0029] In this embodiment, the image acquisition component 4 includes at least one industrial camera 41 and an anti-reflective filter 42 mounted on the industrial camera 41. The anti-reflective filter 42 can shield light other than the laser emitted by the laser emitter 2, improving the accuracy of displaying defects in the acquired image. Specifically, two industrial cameras 41 can be set up to capture images of the titanium roller 31 from different angles. The anti-reflective filter 42 can only allow 532nm / 650nm light to pass through, filtering out ambient light (such as workshop lights and equipment heat sources) interference, improving the image signal-to-noise ratio by more than 30%, and avoiding false defect misjudgments caused by stray light.

[0030] Therefore, the device in this embodiment systematically solves the bottlenecks of efficiency, accuracy and compatibility of traditional detection by combining optical innovation, precision mechanical design and intelligent data processing, and is especially suitable for high-end manufacturing scenarios with high requirements for detection speed and non-destructive testing.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, in this utility model, descriptions involving terms such as "primary," "secondary," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "primary" or "secondary" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A laser inspection device for the surface of a titanium roller, characterized in that, include: A rack (1) on which at least two laser emitters (2) are mounted; The rotating scanning mechanism (3) includes a base (35) and a precision slide assembly (34) disposed on the upper side of the base (35). A titanium roller rotating support (39) for placing a titanium roller (31) is installed on the upper side of the precision slide assembly (34) opposite to the laser emitter (2). A titanium roller rotating drive assembly is connected to the titanium roller rotating support (39). The image acquisition component (4) is set near the rotating scanning mechanism (3) to acquire the image of the laser emitted by the laser emitter (2) illuminating the titanium roller (31); The data processing terminal is electrically connected to the image acquisition component (4), the laser emitter (2), and the titanium roller rotation drive component.

2. The laser inspection device for titanium roller surface according to claim 1, characterized in that: The laser emitter (2) consists of two units, which are symmetrically installed on both sides of the frame (1).

3. The laser inspection device for titanium roller surface according to claim 2, characterized in that: Each of the laser emitters (2) is equipped with a laser power regulator.

4. The laser inspection device for titanium roller surface according to claim 3, characterized in that: The surface of the laser emitter (2) is equipped with a heat dissipation fin assembly.

5. The laser inspection device for titanium roller surface according to any one of claims 1-4, characterized in that: The laser emitters (2) mentioned above are a 532nm line laser and a 650nm line laser, respectively.

6. The laser inspection device for titanium roller surface according to claim 5, characterized in that: The laser emitters (2) are all connected to the frame (1) via rotating support members (11).

7. The laser inspection device for titanium roller surface according to claim 1, characterized in that: The titanium roller rotation drive assembly includes a drive motor (33) mounted on the upper side of the precision slide assembly (34) and a bidirectional synchronous belt drive assembly (32) connecting the titanium roller (31) and the drive motor (33).

8. The laser inspection device for titanium roller surface according to claim 1, characterized in that: The precision slide assembly (34) includes a slide rail (36) mounted on the upper side of the base (35) and a slide (341) mounted on the slide rail (36). A transmission screw (37) is horizontally mounted on the upper side of the base (35). One end of the transmission screw (37) is connected to the slide motor (38). The slide (341) is connected to the transmission screw (37) through a screw nut.

9. The laser inspection device for titanium roller surface according to claim 5, characterized in that: The image acquisition component (4) includes at least one industrial camera (41) and an anti-reflective filter (42) mounted on the industrial camera (41).

Images