Large-aperture cylinder 360-degree outer wall detection lens system

Abstract

The utility model discloses a large-aperture cylinder outer wall detection lens system, which comprises a first concave spherical reflector, a second convex spherical reflector, a third single negative spherical lens, a fourth single positive spherical lens, a fifth single positive spherical lens, a sixth diaphragm unit, a seventh single negative spherical lens and an eighth single positive spherical lens from the object space. And light rays of the ninth single positive spherical lens, the tenth imaging surface and the outer wall of the cylinder are reflected by the first concave spherical reflecting lens and then reflected by the second convex spherical reflecting lens to enter a rear imaging system for imaging. Compared with a traditional method that at least six sets of plane systems are needed to comprehensively detect the 360-degree outer wall of the large-diameter cylinder, detection can be completed only through one system, and the equipment cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical detection equipment technical field, especially relates to a large aperture cylinder 360 degree outer wall detection lens system. BACKGROUND

[0002] In the industrial production and quality detection process, the outer wall detection of large aperture cylinder is very important. The traditional large aperture cylinder 360 degree outer wall detection method has many defects. When adopting at least 6 sets of plane systems for traditional optical detection, not only the equipment cost is high, but also the system structure is complex, the operation difficulty is big, and professional personnel are needed for debugging and maintenance. The calibration and synchronization problems between multiple systems also increase the detection error and uncertainty, and it is difficult to guarantee the accuracy and consistency of the detection results.

[0003] Some existing detection technologies cannot realize 360 degree omnidirectional efficient detection when facing large aperture cylinders. Some detection methods need to adjust the position and angle of the detection equipment multiple times, resulting in low detection efficiency, which cannot meet the requirements of modern industrial production on detection speed. Moreover, the traditional detection equipment is difficult to adapt to the detection of large aperture cylinders with different diameter ranges, and the detection range is limited and the flexibility is insufficient.

[0004] With the rapid development of industrial automation, the accuracy, efficiency and low cost requirements of large aperture cylinder outer wall detection are higher and higher. Therefore, it has important practical significance to develop a large aperture cylinder 360 degree outer wall detection lens system which is simple in structure, convenient to operate, wide in detection range and low in cost. UTILITY MODEL CONTENT

[0005] In order to make up for the shortcomings of the prior art, the application provides a large aperture cylinder 360 degree outer wall detection lens system to solve the problems in the prior art.

[0006] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0007] A large aperture cylinder 360 degree outer wall detection lens system, comprising a first concave spherical mirror, a second convex spherical mirror, a third single negative spherical mirror, a fourth single positive spherical mirror, a fifth single positive spherical mirror, a sixth diaphragm unit, a seventh single negative spherical mirror, an eighth single positive spherical mirror, a ninth single positive spherical mirror and a tenth imaging surface, wherein the cylinder 360 degree outer wall light is reflected by the first concave spherical mirror, then reflected by the second convex spherical mirror and enters the rear imaging system for imaging.

[0008] As a further technical scheme of the utility model: the concave spherical mirror, the concave reflection direction is towards the object plane, and the parameters are: the curvature radius is -90.55, and the thickness is -46.2402.

[0009] As a further technical scheme of the utility model: the convex spherical mirror piece, convex reflection direction is to the image surface, curvature radius -42.55, thickness 96.

[0010] As a further technical scheme of the utility model: the single negative spherical lens is the negative lens of convex-concave shape, and the opening direction is to the image surface.

[0011] As a further technical scheme of the utility model: the single positive spherical lens is the positive lens of concave-convex shape, and the opening direction is to the object surface.

[0012] As a further technical scheme of the utility model: the single positive spherical lens is the positive lens of double convex shape.

[0013] As a further technical scheme of the utility model: the seventh single negative spherical lens is the negative lens of double concave shape.

[0014] As a further technical scheme of the utility model: the eighth single positive spherical lens is the positive lens of double convex shape.

[0015] As a further technical scheme of the utility model: the ninth single positive spherical lens is the positive lens of double convex shape.

[0016] One or more technical schemes provided in the embodiment of the application have at least the following technical effects or advantages:

[0017] Cost reduction: compared with the method that at least 6 sets of plane systems are needed to comprehensively detect the 360° outer wall of a large-diameter cylinder, the application can complete the detection by only one system, greatly reducing the equipment cost.

[0018] Simple structure: the unique two-piece mirror system combined with the lens imaging system design makes the entire optical system compact and simple, reduces the complex mechanical adjustment components, and reduces the complexity of the equipment.

[0019] Convenient operation: due to the simple structure, the operation process is more convenient, professional personnel are not needed for complex debugging, the operation threshold is reduced, and the detection efficiency is improved.

[0020] Wide detection range: the detection cylinder diameter range can reach 10mm to 120mm, can adapt to detection of various large-diameter cylinders of different sizes, has high flexibility and universality.

[0021] Widely used: with its unique optical system, it can be widely used in glass cylinder 360° outer wall appearance detection, bottle cap 360° outer wall detection, cylindrical medicine detection, cylindrical workpiece detection and other fields, and has great market potential. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the utility model.

[0023] In the drawing: 1 - first concave spherical mirror piece, 2 - second convex spherical mirror piece, 3 - third single negative spherical mirror piece, 4 - fourth single positive spherical mirror piece, 5 - fifth single positive spherical mirror piece, 6 - sixth diaphragm unit, 7 - seventh single negative spherical mirror piece, 8 - eighth single positive spherical mirror piece, 9 - ninth single positive spherical mirror piece. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0025] As Figure 1 shown, a large-diameter cylinder 360 ° is composed of a two-piece mirror piece system and a mirror imaging system, the whole optical system includes from the object side first concave spherical mirror piece 1, second convex spherical mirror piece 2, third single negative spherical mirror piece 3, fourth single positive spherical mirror piece 4, fifth single positive spherical mirror piece 5, sixth diaphragm unit 6, seventh single negative spherical mirror piece 7, eighth single positive spherical mirror piece 8, ninth single positive spherical mirror piece 9, tenth imaging image 10. The light of the outer wall of the cylinder 360 ° is reflected by the first concave spherical mirror piece 1, then is reflected by the second convex spherical mirror piece 2 and enters the rear imaging system for imaging.

[0026] The working principle is as follows:

[0027] The concave spherical mirror piece is concave reflection direction to the object plane, and its parameters are: curvature radius -90.55, thickness -46.2402. The convex spherical mirror piece is convex reflection direction to the image plane, and its curvature radius is -42.55, and the thickness is 96. The single negative spherical mirror piece is a convex-concave negative lens, and the opening direction is to the image plane. The single positive spherical mirror piece is a concave-convex positive lens, and the opening direction is to the object plane. The single positive spherical mirror piece is a double-convex positive lens. The seventh single negative spherical mirror piece is a double-concave negative lens. The eighth single positive spherical mirror piece is a double-convex positive lens. The ninth single positive spherical mirror piece is a double-convex positive lens.

[0028] The design can detect the diameter of the cylinder in the range of 10mm to 120mm, and only one system is needed to comprehensively detect, so that the large-diameter cylindrical 360° outer wall detection lens can reduce the cost when detecting the 360° outer wall of the cylinder, and has the advantages of simple structure and easy operation. The large-diameter cylindrical 360° outer wall detection lens has a great market in the application of glass cylinder 360° outer wall appearance detection, bottle cap 360° outer wall detection, cylindrical medicine detection, cylindrical workpiece detection and the like in the field with its unique optical system.

[0029] The structure values of the lens group are shown in the following table:

[0030] Table 1: Structure value table of the lens group

[0031]

[0032] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be realized in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application.

[0033] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment have been appropriately combined to form other embodiments easily understood by those skilled in the art.

Claims

1. A large aperture cylindrical 360° outer wall inspection lens system, characterized in that: It includes the first concave spherical mirror piece (1), the second convex spherical mirror piece (2), the third single negative spherical lens (3), the fourth single positive spherical lens (4), the fifth single positive spherical lens (5), the sixth diaphragm unit (6), the seventh single negative spherical lens (7), the eighth single positive spherical lens (8), the ninth single positive spherical lens (9), the tenth imaging image (10), and the column 360° outer wall light is reflected by the first concave spherical mirror piece (1), then reflected by the second convex spherical mirror piece (2) into the imaging system behind the imaging.

2. The 360° outer wall inspection lens system for large-diameter cylinders according to claim 1, characterized in that, The concave spherical mirror piece (1) is concave to the object side, and its parameters are: the curvature radius is -90.55, and the thickness is -46.2402.

3. The 360° outer wall inspection lens system for large-diameter cylinders according to claim 1, characterized in that, The convex spherical mirror piece (2) is convex to the image side, the curvature radius is -42.55, and the thickness is 96.

4. The 360° outer wall inspection lens system for large-diameter cylinders of claim 1, wherein, The single negative spherical lens (3) is a convex-concave negative lens, and the opening direction is towards the image side.

5. The 360° outer wall inspection lens system for large-diameter cylinders according to claim 1, characterized in that, The single positive spherical lens (4) is a concave-convex positive lens, and the opening direction is towards the object side.

6. The 360° outer wall inspection lens system for large-diameter cylinders according to claim 1, characterized in that, The single positive spherical lens (5) is a double-convex positive lens.

7. The 360° outer wall inspection lens system for large-diameter cylinders according to claim 1, characterized in that, The seventh single negative spherical lens (7) is a double-concave negative lens.

8. The 360° outer wall inspection lens system for large-diameter cylinders according to claim 1, characterized in that, The eighth single positive spherical lens (8) is a double-convex positive lens.

9. The 360° outer wall inspection lens system for large-diameter cylinders of claim 1, wherein, The ninth single positive spherical lens (9) is a double-convex positive lens.

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