An angle adjustable optical detection device

Abstract

The application relates to the field of optical detection, and discloses an angle-adjustable optical detection device which comprises two top plates arranged in horizontal parallel distribution, an installation gap is reserved between the two top plates, a transmission belt assembly is arranged between the two top plates, the transmission direction of the transmission belt assembly is consistent with the length direction of the top plates, two T-shaped openings are symmetrically arranged on the top surfaces of the two top plates, two workpiece positioning assemblies are symmetrically arranged in the two T-shaped openings and used for clamping and positioning long strip workpieces in the transmission process, concave supports are arranged on the bottom surfaces of the two top plates, and a driving assembly is arranged on the concave supports. The application solves the problem of unstable workpiece positioning of the existing device, realizes transverse clamping and positioning of the long strip workpieces in the transmission process through the two symmetric positioning assemblies and the roller structure, effectively prevents workpiece deviation or rotation, improves detection accuracy, and reduces the missed detection and misjudgment rate.

Description

Technical Field

[0001] This application relates to the field of optical inspection, and in particular to an angle-adjustable optical inspection device. Background Technology

[0002] In the field of automated production, especially when inspecting long strip-shaped workpieces made of materials such as metal and plastic, it is often necessary to obtain defect information (such as scratches, dents, color differences, cracks, etc.) on the surface of the workpiece through optical inspection equipment. In the industrial inspection of long strip-shaped workpieces, the mode of simultaneous horizontal conveying and surface inspection is the key to improving efficiency. However, existing technologies have many specific shortcomings: the length of long strip-shaped workpieces is much greater than the width of the inspection area. Traditional equipment can only inspect a local area at a time, requiring multiple starts and stops of conveying or manual dragging of the workpiece, resulting in inspection breakpoints and easy omission of defects in the middle section. Moreover, repeated inspection of the area increases the time consumption. Furthermore, during the conveying process, long strip-shaped workpieces are prone to sagging due to their own weight or uneven spacing between conveying rollers, resulting in surface tilting or positional displacement. The existing angle adjustment mechanism has a lag in response and cannot dynamically correct the inspection angle in real time, resulting in blurred images in tilted areas and greatly increasing the defect misjudgment rate. Utility Model Content

[0003] To address the above problems, this application provides an angle-adjustable optical inspection device.

[0004] The angle-adjustable optical inspection device provided in this application adopts the following technical solution:

[0005] An angle-adjustable optical inspection device includes: two top plates arranged horizontally and parallel to each other, with a pre-installed installation gap between them; a conveyor belt assembly disposed between the two top plates, the conveying direction of the conveyor belt assembly being consistent with the length direction of the top plates; two T-shaped openings symmetrically formed on the top surfaces of the two top plates; two sets of workpiece positioning assemblies symmetrically installed in the two T-shaped openings for clamping and positioning long workpieces during the conveying process; a concave bracket disposed on the bottom surface of the two top plates, with its opening facing upwards; and a drive assembly disposed on the concave bracket.

[0006] Preferably, the workpiece positioning assembly includes two T-shaped plates, which are respectively vertically arranged in the two T-shaped openings;

[0007] There are two connecting plates, which are respectively disposed on the top surface of the two T-shaped plates, and their length direction is consistent with the length direction of the top plate;

[0008] There are two connecting frames, symmetrically distributed between the two connecting plates;

[0009] Both ends of the side of the connecting frame opposite the connecting plate are connected by fixing rods.

[0010] Preferably, it also includes rectangular frames, two of which are respectively disposed on the bottom surface of the two connecting frames;

[0011] Several rollers are provided and are evenly arranged inside the rectangular frame along the length of the rectangular frame via shafts.

[0012] Preferably, the drive assembly includes a slide rail disposed on the inner bottom surface of the concave bracket along the length direction of the concave bracket;

[0013] The bottoms of the two T-shaped plates are slidably connected along the horizontal direction of the slide rail.

[0014] Preferably, it also includes a support plate, which is horizontally installed on one outer wall of the concave bracket;

[0015] The second cylinder is located on the top surface of the support plate, and its output direction is consistent with the width direction of the slide rail.

[0016] The first fixed seat is installed at the output end of the second cylinder;

[0017] There are two second fixing seats, which are respectively located on the side of the two T-shaped plates opposite to the support plates;

[0018] The connecting plate is mounted on both ends between the first fixed seat and the second fixed seat via shafts.

[0019] Preferably, it also includes a concave base disposed on the bottom surface of the two top plates, the height of which is higher than the concave support.

[0020] Preferably, it also includes an inverted L-shaped bracket disposed on the concave base, the horizontal section of the inverted L-shaped bracket extending directly above the conveyor belt assembly;

[0021] The first cylinder is located on the top surface of the inverted L-shaped bracket, and the output end of the first cylinder passes vertically downward through the horizontal section of the inverted L-shaped bracket.

[0022] The detection head assembly is located at the output end of the first cylinder.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] 1. It solves the problem of unstable workpiece positioning in existing equipment. Through two sets of symmetrical positioning components and roller structure, it realizes lateral clamping and positioning of long workpieces during the transmission process, effectively preventing workpiece offset or rotation, improving detection accuracy, and reducing the rate of missed detection and false detection.

[0025] 2. Improved equipment adaptability and practicality. By adjusting the spacing between the positioning components through the drive components, it can adapt to long workpieces of different widths, reduce the frequency of component replacement, shorten equipment adjustment time, and meet the continuous production needs of automated production lines. Attached Figure Description

[0026] Figure 1 This is a structural front view of an embodiment of the application;

[0027] Figure 2 This is a rear view of the structure of an embodiment of the application;

[0028] Figure 3 This is a schematic diagram of the structure of the conveyor belt assembly according to an embodiment of the application;

[0029] Figure 4 This is a schematic diagram of the workpiece positioning component according to an embodiment of the application;

[0030] Figure 5 This is a schematic diagram of the T-shaped opening in the embodiment of the application;

[0031] Figure 6 This is a schematic diagram of the structure of the driver component in the embodiment of the application.

[0032] Explanation of reference numerals in the attached drawings: 1. Concave base; 2. Concave bracket; 3. Top plate; 4. Conveyor belt assembly; 5. Inverted L-shaped bracket; 6. First cylinder; 7. Detection head assembly; 8. T-shaped opening; 9. Support plate; 10. Second cylinder; 11. T-shaped plate; 12. Connecting plate; 13. Fixing rod; 14. Connecting frame; 15. Slide rail; 16. First fixed seat; 18. Connecting plate; 19. Second fixed seat; 20. Rectangular frame; 21. Roller. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0034] This application discloses an angle-adjustable optical detection device, referring to... Figure 1 The concave base 1 serves as the overall support base for the equipment. It is placed horizontally with its top opening facing upwards. It is used to install the concave bracket 2 and the inverted L-shaped bracket 5. The height of the concave base 1 is higher than that of the concave bracket 2, ensuring that sufficient installation and operation space is reserved between the concave bracket 2 and the conveyor belt assembly 4.

[0035] Reference Figures 1-2It also includes top plates 3, of which there are two, arranged horizontally and parallelly. The bottom of both top plates 3 is fixedly connected to the top of the concave base 1, and an installation gap extending along the length direction is reserved between the two top plates 3. This gap is used to accommodate the conveyor belt assembly 4 and the long strip workpiece to be inspected. The concave bracket 2 is fixedly installed on the bottom surface of the two top plates 3 and is perpendicular to the installation gap between the two top plates 3. The opening of the concave bracket 2 faces upward, and its length direction is consistent with the width direction of the top plate 3. It is used to install the slide rail 15 and the support plate 9 of the drive assembly.

[0036] Reference Figure 3 The conveyor belt assembly 4 is set in the installation gap between the two top plates 3. Its transmission direction is consistent with the length direction of the top plate 3. The conveyor belt assembly 4 adopts a synchronous belt structure driven by a motor to drive the long strip workpiece to be transmitted at a constant speed along the length direction of the top plate 3, providing stable transmission power for subsequent positioning and inspection.

[0037] Reference Figure 1 , Figure 4 , Figure 5 , Figure 6 It also includes a workpiece positioning component, which consists of two sets, symmetrically installed on two top plates 3, for laterally clamping and positioning long workpieces during the transmission process to prevent workpiece offset or rotation.

[0038] Specifically, two T-shaped openings 8 are provided, symmetrically and through the top surfaces of the two top plates 3. The length direction of the T-shaped openings 8 is consistent with the length direction of the top plates 3, providing a guide channel for the sliding of the T-shaped plates 11. Two T-shaped plates 11 are provided, vertically embedded in the two T-shaped openings 8. The top of the T-shaped plate 11 extends into the T-shaped opening 8, and the bottom passes through the T-shaped opening 8 and extends below the top plate 3. The T-shaped plates 11 can slide along the width direction of the T-shaped openings 8 (i.e., the width direction of the top plate 3). Two connecting plates 12 are provided, fixedly installed on the top surfaces of the two T-shaped plates 11. The length direction of the connecting plates 12 is consistent with the length direction of the top plates 3, used to connect the T-shaped plates 11 and the connecting brackets 14. Two connecting brackets 14 are provided, symmetrically distributed between the two connecting plates 12. The connecting brackets 14 and the connecting plates Both ends of the opposite side of 12 are fixedly connected by fixing rods 13. The fixing rods 13 are connected to the connecting plate 12 and the connecting frame 14 by bolts or welding to ensure the structural stability between the connecting frame 14 and the connecting plate 12. A rectangular frame 20 is fixedly installed on the bottom surface of each connecting frame 14. The length direction of the rectangular frame 20 is consistent with the length direction of the connecting frame 14. Several rollers 21 are evenly installed inside the rectangular frame 20 along its length direction through shafts. The rollers 21 can rotate freely around the shafts. When the workpiece is transported on the conveyor belt assembly 4, the rollers 21 of the two sets of workpiece positioning assemblies contact the two sides of the workpiece respectively. The rotation of the rollers 21 reduces the friction between the workpiece and the positioning assembly, so as to achieve lateral clamping and positioning of the workpiece without affecting the normal transport of the workpiece.

[0039] Reference Figures 5-6 It also includes a drive assembly, which is mounted on the concave bracket 2 and is used to drive the two sets of workpiece positioning assemblies to move in opposite directions or in the opposite direction along the width direction of the T-shaped opening 8 (i.e. the width direction of the top plate 3) to adapt to long workpieces of different widths.

[0040] Specifically, the slide rail 15 is fixedly installed on the inner bottom surface of the concave bracket 2 along the length direction of the concave bracket 2. The cross-section of the slide rail 15 is I-shaped. The bottoms of the two T-shaped plates 11 are slidably connected to the slide rail 15. The slide rail 15 provides guidance for the sliding of the T-shaped plates 11, ensuring the synchronicity and stability of the movement of the two sets of workpiece positioning components. The support plate 9 is horizontally fixedly installed on one side of the outer wall of the concave bracket 2. The second cylinder 10 is fixedly installed on the top surface of the support plate 9. The second cylinder 10 is a double-acting cylinder, which can realize the extension and retraction of the piston rod through pneumatic control. The first fixed seat 16 and the second fixed seat 19 are fixedly installed at the output end of the second cylinder 10. Two fixed seats 19 are provided, which are respectively fixedly installed on the side of the two T-shaped plates 11 opposite to the support plate 9. The two second fixed seats 19 are symmetrically distributed about the axis of the first fixed seat 16. Two connecting plates 18 are provided. One end of each connecting plate 18 is rotatably connected to the first fixed seat 16 through a shaft, and the other end is rotatably connected to the corresponding second fixed seat 19 through a shaft. When the piston rod of the second cylinder 10 extends or retracts, the connecting plate 18 can drive the two second fixed seats 19 to move closer or further away in the lateral direction, thereby driving the two T-shaped plates 11 to slide along the slide rail 15, realizing the adjustment of the distance between the two sets of workpiece positioning components to adapt to long workpieces of different widths.

[0041] Reference Figures 1-2 It also includes an inverted L-shaped bracket 5, which is fixedly installed on the top of the concave base 1 and located on one side of the conveyor belt assembly 4. The vertical section of the inverted L-shaped bracket 5 is fixedly connected to the concave base 1, and the horizontal section extends along the horizontal direction perpendicular to the transmission direction of the conveyor belt assembly 4 to the top of the conveyor belt assembly 4, providing installation support for the detection head assembly 7.

[0042] The first cylinder 6 is fixedly installed on the top surface of the horizontal section of the inverted L-shaped bracket 5. Its output end passes vertically downward through the horizontal section of the inverted L-shaped bracket 5 and is fixedly connected to the detection head assembly 7. The first cylinder 6 is a servo cylinder or a precision pneumatic cylinder. The piston rod can be precisely extended and retracted through pneumatic control or electric control, thereby driving the detection head assembly 7 to rise and fall in the vertical direction and adjusting the distance between the detection head assembly 7 and the workpiece surface.

[0043] The inspection head assembly 7 includes an optical lens and a light source module. The optical lens is used to acquire image information of the workpiece surface and transmit the information to an external control system (such as a computer) for defect analysis. The light source module adopts a ring light source or a strip light source to provide uniform and stable illumination for the inspection area and improve the image acquisition quality.

[0044] The implementation principle of an angle-adjustable optical inspection device according to an embodiment of this application is as follows: the long strip workpiece to be inspected is placed on the top surface of the conveyor belt assembly 4, the conveyor belt assembly 4 is started, and the workpiece is moved at a constant speed along the length direction of the top plate 3 to the inspection area.

[0045] Based on the width of the workpiece, activate the second cylinder 10:

[0046] If the distance between the two sets of positioning components needs to be increased, the piston rod of the second cylinder 10 extends and drives the two T-shaped plates 11 to slide along the slide rail 15 away from the workpiece through the connecting plate 18 until the roller 21 separates from the side of the workpiece. If the distance between the two sets of positioning components needs to be decreased, the piston rod of the second cylinder 10 retracts and drives the two T-shaped plates 11 to slide along the slide rail 15 towards the workpiece through the connecting plate 18 until the rollers 21 of the two sets of positioning components contact the two sides of the workpiece respectively, thereby achieving lateral clamping and positioning of the workpiece and preventing the workpiece from shifting during transmission.

[0047] Then, the first cylinder 6 is activated to control the piston rod to extend and retract, driving the detection head assembly 7 to rise and fall vertically, so that the distance between the optical lens and the workpiece detection area reaches the optimal imaging distance. The light source module is activated to provide illumination for the detection area. The optical lens collects image information from the top surface of the workpiece and transmits the information to the external control system. The system analyzes the image, determines whether there are defects in the workpiece, and records the detection results.

[0048] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0049] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0050] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An angle-adjustable optical inspection device, characterized in that, include: There are two top plates (3) arranged horizontally and parallel to each other, with an installation gap reserved between the two top plates (3); A conveyor belt assembly (4) is disposed between the two top plates (3), and the conveying direction of the conveyor belt assembly (4) is consistent with the length direction of the top plate (3); Two T-shaped openings (8) are provided, which are symmetrically opened through the top surfaces of the two top plates (3); The workpiece positioning assembly is provided in two sets, which are symmetrically installed in the two T-shaped openings (8) respectively, for clamping and positioning the long workpiece during the transmission process. A concave bracket (2) is provided on the bottom surface of the two top plates (3), with its opening facing upward; The drive assembly is mounted on the concave bracket (2).

2. The angle-adjustable optical detection device according to claim 1, characterized in that: The workpiece positioning assembly includes two T-shaped plates (11), which are respectively vertically arranged in the two T-shaped openings (8); There are two connecting plates (12), which are respectively set on the top surface of the two T-shaped plates (11) and their length direction is consistent with the length direction of the top plate (3); There are two connecting frames (14), which are symmetrically distributed between the two connecting plates (12); Both ends of the side of the connecting frame (14) opposite to the connecting plate (12) are connected by fixing rods (13).

3. The angle-adjustable optical detection device according to claim 2, characterized in that: It also includes rectangular frames (20), of which two are provided, respectively disposed on the bottom surface of the two connecting frames (14); Several rollers (21) are provided and are evenly arranged inside the rectangular frame (20) along the length direction of the rectangular frame (20) via shafts.

4. The angle-adjustable optical detection device according to claim 2, characterized in that: The drive assembly includes a slide rail (15) which is disposed on the inner bottom surface of the concave bracket (2) along the length direction of the concave bracket (2); The bottoms of the two T-shaped plates (11) are slidably connected along the horizontal direction of the slide rail (15).

5. The angle-adjustable optical detection device according to claim 4, characterized in that: It also includes a support plate (9), which is horizontally installed on one side of the outer wall of the concave bracket (2); The second cylinder (10) is located on the top surface of the support plate (9), and its output direction is consistent with the width direction of the slide rail (15). The first fixed seat (16) is installed at the output end of the second cylinder (10); There are two second fixing seats (19), which are respectively located on the side of the two T-shaped plates (11) opposite to the support plate (9); The connecting plate (18) is set at both ends between the first fixed seat (16) and the second fixed seat (19) via shafts.

6. The angle-adjustable optical detection device according to claim 1, characterized in that: It also includes a concave base (1) disposed on the bottom surface of the two top plates (3), the height of which is higher than the concave support (2).

7. The angle-adjustable optical detection device according to claim 6, characterized in that: It also includes an inverted L-shaped bracket (5) disposed on the concave base (1), the horizontal section of which extends directly above the conveyor belt assembly (4); The first cylinder (6) is located on the top surface of the inverted L-shaped bracket (5), and the output end of the first cylinder (6) passes vertically downward through the horizontal section of the inverted L-shaped bracket (5). The detection head assembly (7) is located at the output end of the first cylinder (6).

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