An arc-shaped guide rail and a detection device employing the same

Abstract

The application belongs to the field of lens detection auxiliary component manufacturing, and particularly relates to an arc-shaped guide rail and a detection equipment adopting the arc-shaped guide rail. The arc-shaped guide rail comprises a guide rail body, the central angle of the arc shape of the guide rail body is greater than 0 DEG and less than or equal to 180 DEG, a plurality of meshing teeth are arranged along the arc shape of the guide rail body between two ends of the guide rail body, a radial limiting structure concentric with the arc shape of the guide rail body is further arranged on the guide rail body, a fixing shaft is arranged on the convex side of the guide rail body, and the axis of the fixing shaft is parallel to the plane where the arc shape of the guide rail body is located. The application solves the problem that in the case that the lens is not moved, the position of the lens irradiated is changed and the same detected position on the lens cannot be detected at multiple angles due to the rotation of the light source driven by the mechanical arm.

Description

Technical Field

[0001] This application belongs to the field of manufacturing auxiliary components for lens testing, specifically an arc-shaped guide rail and a testing device using the arc-shaped guide rail. Background Technology

[0002] In the process of inspecting lenses using light, it is necessary to change the angle at which the light shines on the lens to ensure that the light can illuminate the lens from different angles, thus enabling comprehensive inspection. The traditional approach uses a robotic arm to rotate, thereby driving the light source to change the angle of incidence on the lens. However, when the robotic arm rotates the light source, the illuminated position on the lens changes while the lens remains stationary, making it impossible to inspect the same location on the lens from multiple angles. Therefore, an auxiliary component is needed that can adjust the emission angle of the light source without altering the illuminated point on the glass being inspected, in conjunction with the angle adjustment of the light source. Utility Model Content

[0003] The purpose of this application is to address the shortcomings of existing technologies by providing an arc-shaped guide rail and a detection device using the arc-shaped guide rail. The arc-shaped guide rail is equipped with a meshing tooth and a radial limiting structure, which allows the light source holder of the detection glass to move along the arc direction of the guide rail body after being installed on the arc-shaped guide rail, without radially detaching from the guide rail body. Furthermore, it can accurately calculate the angle of rotation of the light emitted by the light source, thus solving the problem that the current method of using a robotic arm to drive the light source to rotate causes the illuminated position on the lens to change when the lens is stationary, making it impossible to perform multi-angle detection on the same detection position on the lens.

[0004] To achieve the above objectives, the technical solution adopted in this application is:

[0005] An arc-shaped guide rail includes a guide rail body, wherein the central angle of the arc of the guide rail body is greater than 0° and less than or equal to 180°. A plurality of teeth are arranged along the arc of the guide rail body between its two ends. The guide rail body also has a radial limiting structure concentric with the arc of the guide rail body. The radial limiting structure is used to radially fix a detection device slidably disposed between the two ends of the guide rail body to the guide rail body. A fixed shaft is provided on the protruding side of the guide rail body, and the axis of the fixed shaft is parallel to the plane containing the arc of the guide rail body.

[0006] Preferably, the concave surface of the guide rail body is provided with a first groove concentric with the arc of the guide rail body, the meshing teeth are provided on the inner bottom wall of the first groove, and the radial limiting structure is provided on the side wall of the first groove.

[0007] Preferably, the line segment connecting the two ends of the fourth groove (7) at least partially overlaps with the area enclosed by the fourth groove (7). The line segment connecting the two ends of the third groove (6) also overlaps with the area enclosed by the third groove (6).

[0008] Preferably, a first outer arc edge is provided on one side wall of the guide rail body on a plane parallel to the arc of the guide rail body. The arc of the first outer arc edge is concentric with the arc of the guide rail body. The teeth are provided on the convex surface of the first outer arc edge, and the concave surface of the guide rail body is a smooth surface.

[0009] Preferably, the radial limiting structure includes a second outer arc edge, and the second outer arc edge is provided on the other side wall of the guide rail body on the plane parallel to the arc of the guide rail body. The arc of the second outer arc edge is concentric with the arc of the guide rail body, and the convex surface of the second outer arc edge is a smooth surface.

[0010] Preferably, the central angle of the arc of the guide rail body is between 90° and 180°.

[0011] Preferably, the central angle of the arc of the guide rail body is 90°, and the fixed shaft is located at one end of the guide rail body.

[0012] Preferably, the central angle of the arc of the guide rail body is 180°, and the fixed shaft is located at the midpoint between the two ends of the guide rail body.

[0013] A detection device includes a detection light source and an arc-shaped guide rail as described above. The detection light source is slidably disposed between the two ends of the guide rail body, and the light emitted by the detection light source is directed toward the center of a virtual circle in which the guide rail body is located.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] This application employs an arc-shaped guide rail with teeth and radial limiting structures. This allows the light source holder of the detection lens to move along the arc of the guide rail body after being mounted on it, without detaching radially from the guide rail body. Furthermore, it enables precise calculation of the angle of rotation of the light emitted by the light source. This solves the problem that current methods using a robotic arm to rotate the light source result in changes to the illuminated position on the lens when the lens remains stationary, making it impossible to perform multi-angle detection on the same detection position on the lens. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the implementation of the guide rail body when the central angle of the guide rail body is 180°.

[0017] Figure 2This is a schematic diagram of an embodiment of the guide rail body in this application, where the central angle of the guide rail body is 90°.

[0018] Figure 3 This is a schematic diagram of the implementation of the first and second arc edges in this application;

[0019] Figure 4 A usage scenario diagram illustrating the implementation of setting the first slot in this application;

[0020] Figure 5 This is a usage scenario diagram showing the first and second arc edges in this application;

[0021] Figure 6 for Figure 5 A schematic diagram of the structure on the back.

[0022] The components are as follows: 1. Guide rail body; 2. Gear; 3. Fixed shaft; 4. First groove; 5. Second groove; 6. Third groove; 7. Fourth groove; 8. First outer arc edge; 9. Second outer arc edge; 10. Detection light source; 12. Mounting base; 13. Gear; 14. Bracket; 15. Second motor; 16. Roller. Detailed Implementation

[0023] like Figures 1-6 As shown, an arc-shaped guide rail includes a guide rail body 1. The arc of the guide rail body 1 is greater than 0 and less than or equal to π. A plurality of teeth 2 are arranged along the arc of the guide rail body 1 between its two ends. The guide rail body 1 is also provided with a radial limiting structure concentric with the arc of the guide rail body 1. The radial limiting structure is used to radially fix a detection device that is slidably disposed between the two ends of the guide rail body 1 to the guide rail body 1. A fixed shaft 3 is provided on the protruding side of the guide rail body 1. The axis of the fixed shaft 3 is parallel to the plane where the arc of the guide rail body 1 is located.

[0024] In this embodiment, during use, the mounting base 11, which is equipped with the detection light source 10, can be slidably connected between the two ends of the guide rail body 1. The mounting base 11 is equipped with a gear 12 that meshes with the meshing gear 2 via a first motor 13. The purpose of the meshing gear 2 is to mesh with the gear 12 on the mounting base 11. The first motor 13 is fixedly mounted on the mounting base 11, and the gear 12 is coaxially fixedly mounted on the output shaft of the first motor 13. The first motor 13 drives the gear 12 to rotate so that the mounting base 11 can move precisely between the two ends of the guide rail body 1. The radial locking structure is set so that the mounting base 11 will not fall radially off the guide rail body 1, but it does not restrict the mounting base 11 from sliding back and forth on the guide rail body 1. The central angle of the guide rail body 1 is between 0° and 180°, so that the angle α of the light emitted by the light source 10 can be adjusted during the movement of the mounting base 11 on the guide rail body 1. The angle α is between 0° and 180°. In use, the fixed shaft 3 is rotated and mounted on the bracket 14, and then the second motor 15 is fixed on the bracket 14. The output shaft of the second motor 15 is connected to the fixed shaft 3. The fixed shaft 3 is set so that the plane where the angle α emitted by the detection light source 10 is located is changed.

[0025] As a preferred embodiment, the concave surface of the guide rail body 1 is provided with a first groove 4 concentric with the arc of the guide rail body 1. The meshing teeth 2 are disposed on the inner bottom wall of the first groove 4, and the radial limiting structure is disposed on the side wall of the first groove 4. With this arrangement, during use, the gear that meshes with the meshing teeth 2 is located within the first groove 4, which reduces space occupation and prevents dust and impurities from drifting onto the meshing teeth 2, thus protecting the meshing teeth 2.

[0026] There are two classic special design methods for setting the meshing teeth 2 on the guide rail body 1. Method one is:

[0027] The radial limiting structure includes a second groove 5, a third groove 6, and a fourth groove 7. The second groove 5 is located on one side wall of the first groove 4, and the third groove 6 and the fourth groove 7 are located on the other side wall of the first groove 4. The arcs of the second groove 5, the third groove 6, and the fourth groove 7 are all concentric. The projections of the second groove 5 and the third groove 6 onto the plane containing the arc of the guide rail body 1 coincide. The radius of the fourth groove 7 is greater than or less than the radius of the third groove 6. The line segments connecting the two ends of the fourth groove 7 to the center of the virtual circle containing the arc of the fourth groove 7 are Q and P, respectively. The line segments connecting the two ends of the third groove 6 to the center of the virtual circle containing the arc of the third groove 6 are M and N, respectively. The second groove 5 and the third groove 6 are provided to install the gear shaft of the gear 12 during use, that is, to prevent the gear 12 from radially disengaging from the guide rail body 1. The fourth groove 7 is provided to limit the radial position of the mounting seat 11 between the guide rail body 1 and the mounting base 1 during use.

[0028] The line segment connecting the two ends of the fourth groove 7 and the area enclosed by the fourth groove 7 at least partially overlaps with the area enclosed by the line segment connecting the two ends of the third groove 6 and the third groove 6. The purpose of this arrangement is to allow the mounting base 11 to move on the guide rail body 1 during use. If A and B do not overlap, the mounting base 11 cannot move on the guide rail body 1 during use.

[0029] As a preferred method, such as Figure 3 As shown, a first outer arc edge 8 is provided on one side wall of the guide rail body 1, parallel to the plane containing the arc of the guide rail body 1. The arc of the first outer arc edge 8 is concentric with the arc of the guide rail body 1. The meshing teeth 2 are provided on the convex surface of the first outer arc edge 8, and the concave surface of the guide rail body 1 is smooth. With this configuration, the meshing teeth 2 are exposed. In use, a gear 12 that engages with the meshing teeth 2 is provided on the mounting base 11. The first motor 13 drives the gear 12 to rotate, and then a radial engagement structure allows the side of the mounting base 11 facing the gear 12 to slide against the concave surface of the guide rail body 1. This allows the mounting base 11 to change the angle of light as it moves on the guide rail body 1. Preferably, scale lines are arranged along the arc of the guide rail body 1 to accurately obtain the angle value of the light change.

[0030] Method 2: For example Figure 3 , Figure 5 , Figure 6 The radial limiting structure includes a second outer arc edge 9. The second outer arc edge 9 is provided on the other side wall of the guide rail body 1, which is parallel to the plane containing the arc of the guide rail body 1. The arc of the second outer arc edge 9 is concentric with the arc of the guide rail body 1, and the convex surface of the second outer arc edge 9 is a smooth surface. In addition to the gear 12 (driven by the first motor 13) that meshes with the meshing gear 2, the mounting base 11 is also provided with a roller 16. The roller 16 and the mounting base 11 clamp the second outer arc edge 9. The side of the mounting base 11 facing the concave surface of the guide rail body 1 is slidably connected to the concave surface of the guide rail body 1.

[0031] As a preferred embodiment, the central angle of the arc of the guide rail body 1 is between 0° and 180°.

[0032] As a preferred method, such as Figure 2 As shown, the central angle of the arc of the guide rail body 1 is 90°. The fixed shaft 3 is located at one end of the guide rail body 1. With this configuration, even if the guide rail body 1 is only a quarter circle, the angle of light can be adjusted between 0° and 180° by driving the guide rail body 1 to rotate 180 degrees through the second servo motor 15.

[0033] As a preferred embodiment, the central angle of the arc of the guide rail body 1 is 180°, and the fixed shaft 3 is located at the midpoint between the two ends of the guide rail body 1. With this configuration, if the concave surface of the guide rail body 1 faces downward, the shaft 3 will not bear radial force, thereby extending the service life of the shaft 3.

[0034] On the other hand, this application proposes a detection device, including a detection light source 10 and the aforementioned arc-shaped guide rail. The detection light source is slidably disposed between the two ends of the guide rail body 1, and the light emitted by the detection light source 10 is directed toward the center of the virtual circle in which the guide rail body 1 is located.

Claims

1. An arc-shaped guide rail, characterized in that, The guide rail body (1) has a central angle of arc greater than 0° and less than or equal to 180°. A plurality of teeth (2) are arranged along the arc of the guide rail body (1) between the two ends of the guide rail body (1). The guide rail body (1) is also provided with a radial limiting structure concentric with the arc of the guide rail body (1). The radial limiting structure is used to radially fix the detection device that is slidably set between the two ends of the guide rail body (1) to the guide rail body (1). A fixed shaft (3) is provided on the protruding side of the guide rail body (1). The axis of the fixed shaft (3) is parallel to the plane where the arc of the guide rail body (1) is located.

2. The arc-shaped guide rail according to claim 1, characterized in that, The concave surface of the guide rail body (1) is provided with a first groove (4) concentric with the arc of the guide rail body (1), the meshing teeth (2) are provided on the inner bottom wall of the first groove (4), and the radial limiting structure is provided on the side wall of the first groove (4).

3. The arc-shaped guide rail according to claim 2, characterized in that, The radial limiting structure includes a second groove (5), a third groove (6), and a fourth groove (7). The second groove (5) is located on one side wall of the first groove (4), and the third groove (6) and the fourth groove (7) are located on the other side wall of the first groove (4). The arcs of the second groove (5), the third groove (6), and the fourth groove (7) are concentric. The projections of the second groove (5) and the third groove (6) on the plane containing the arc of the guide rail body (1) coincide. The radius of the fourth groove (7) is greater than or less than the radius of the third groove (6).

4. The arc-shaped guide rail according to claim 3, characterized in that, The line segment connecting the two ends of the fourth groove (7) and the area enclosed by the fourth groove (7) at least partially overlaps with the area enclosed by the line segment connecting the two ends of the third groove (6) and the area enclosed by the third groove (6).

5. An arc-shaped guide rail according to claim 1, characterized in that, A first outer arc edge (8) is provided on one side wall of the plane parallel to the arc of the guide rail body (1). The arc of the first outer arc edge (8) is concentric with the arc of the guide rail body (1). The tooth (2) is provided on the convex surface of the first outer arc edge (8). The concave surface of the guide rail body (1) is a smooth surface.

6. The arc-shaped guide rail according to claim 5, characterized in that, The radial limiting structure includes a second outer arc edge (9). The second outer arc edge (9) is provided on the other side wall of the guide rail body (1) parallel to the arc of the guide rail body (1). The arc of the second outer arc edge (9) is concentric with the arc of the guide rail body (1). The convex surface of the second outer arc edge (9) is a smooth surface.

7. An arc-shaped guide rail according to claim 1, characterized in that, The central angle of the arc of the guide rail body (1) is between 90° and 180°.

8. An arc-shaped guide rail according to claim 7, characterized in that, The central angle of the arc of the guide rail body (1) is 90°, and the fixed shaft (3) is located at one end of the guide rail body (1).

9. An arc-shaped guide rail according to claim 7, characterized in that, The central angle of the arc of the guide rail body (1) is 180°, and the fixed shaft (3) is located at the midpoint between the two ends of the guide rail body (1).

10. A testing device, characterized in that, Includes a detection light source (10) and an arc-shaped guide rail as described in any one of claims 1-9, wherein the detection light source (10) is slidably disposed between the two ends of the guide rail body (1), and the light emitted by the detection light source (10) is directed toward the center of the virtual circle in which the guide rail body (1) is located.

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