CN219414554U - Combined structured light source and visual detection system - Google Patents

Abstract

The utility model relates to the technical field of light source equipment, in particular to a combined structure light source and a visual detection system, wherein the combined structure light source is sequentially provided with: the optical fiber light source is provided with an optical outlet connector; one end of the optical fiber wire is detachably connected with the light emitting connector; a lens assembly, one end of which is connected with the other end of the optical fiber line; the grid sheet is positioned at the other end of the lens assembly, and a light-transmitting gap is formed in the grid sheet. The combined structured light source and the visual detection system provided by the utility model can effectively solve the problem that the brightness of the existing structured light source is difficult to upgrade and adjust.

Description

Combined structured light source and visual detection system

Technical Field

The utility model relates to the technical field of light source equipment, in particular to a combined structured light source and a visual detection system.

Background

When the surface defects of a workpiece are visually detected, a light source device is often required to polish the workpiece. Structured light sources are a common light source device for visual inspection.

Referring to fig. 1, the existing structured light source includes:

a heat dissipation base 1, wherein a containing groove 101 is arranged in the middle of the heat dissipation base 1;

the lamp panel 2 is arranged in the accommodating groove 101;

a lens assembly 3, wherein one end of the lens assembly 3 is connected with the heat dissipation base 1;

and the grid sheet 4 is positioned at the other end of the lens assembly 3, and a light transmission gap 401 is formed in the grid sheet 4.

When the light needs to be shined, the light emitted by the lamp panel 2 irradiates the grid sheet 4 after passing through the lens assembly 3, and only the light irradiated to the light-transmitting gap 401 can be irradiated to the surface of the workpiece, and other light can be blocked by the grid sheet 4. Therefore, the shape of the detection beam irradiated to the surface of the workpiece can be controlled by controlling the shape of the light-transmitting slit 401.

To increase the brightness of the existing structured light source, the power of the lamp panel 2 is increased. In general, the power of the lamp panel 2 is positively correlated with the size of the lamp panel 2: the higher the power of the lamp panel 2, the larger the size.

However, in the conventional structured light source, the lamp panel 2 is fixedly mounted in the heat dissipation base 1, and thus, the size of the lamp panel 2 is limited by the size of the heat dissipation base 1. For example, if the size of the lamp panel 2 is increased, the size of the heat dissipation base 1 is increased, but after the size of the heat dissipation base 1 is increased, the heat dissipation base 1 cannot be connected to the lens assembly 3.

Therefore, the existing structured light source has the problem that the brightness of the light is difficult to upgrade and adjust.

The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is presently known to those of ordinary skill in the art.

Disclosure of Invention

An object of the present utility model is to provide a combined structured light source and a visual inspection system, which can effectively solve the problem that the brightness of the existing structured light source is difficult to upgrade and adjust.

In order to achieve the above object, in one aspect, the present utility model provides a light source with a combined structure, along a light propagation path, sequentially comprising:

the optical fiber light source is provided with an optical outlet connector;

one end of the optical fiber wire is detachably connected with the light emitting connector;

a lens assembly, one end of which is connected with the other end of the optical fiber line;

the grid sheet is positioned at the other end of the lens assembly, and a light-transmitting gap is formed in the grid sheet.

Optionally, an adapter is disposed between the lens assembly and the optical fiber line.

Optionally, one end of the adapter is fixedly connected with the optical fiber line, and the other end of the adapter is detachably connected with the lens assembly.

Optionally, the other end of the lens assembly is connected with a lens assembly, and the grid sheet is located between the lens assembly and the lens assembly.

Optionally, the lens component is a focusing lens.

Optionally, a grid pressing ring for pressing the grid on the lens assembly is arranged on one side of the grid close to the lens assembly.

Optionally, the lens assembly includes a housing and a plurality of optical lenses positioned within the housing.

Optionally, a diffusion plate is disposed on a side of each optical lens away from the grid sheet.

In another aspect, a visual inspection system is provided, including a camera and any of the combined structured light sources.

The utility model has the beneficial effects that: when a workpiece needs to be polished, light rays emitted by the optical fiber light source sequentially pass through the optical fiber wire and the lens assembly and then irradiate the grating sheet, and the light rays irradiated to the light transmission gap can be irradiated to the surface of the workpiece outwards to form detection light beams;

because the optical fiber line and the light-emitting connector are detachably connected, when detection light beams with different brightness are required to be used for polishing, the upgrade adjustment of the light brightness can be completed only by replacing optical fiber light sources with different powers.

Therefore, the combined structured light source and the visual detection system provided by the utility model can effectively solve the problem that the brightness of the existing structured light source is difficult to upgrade and adjust.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art structured light source provided in the background;

FIG. 2 is a schematic diagram of a visual inspection system according to an embodiment;

FIG. 3 is a schematic diagram of a combined structured light source according to an embodiment;

fig. 4 is a schematic structural diagram of a lens assembly according to an embodiment.

In the figure:

100. a workpiece; 200. a camera;

1. a heat dissipation base; 101. a receiving groove;

2. a lamp panel;

3. a lens assembly; 301. an optical lens; 302. a housing;

4. grid pieces; 401. a light-transmitting slit;

5. an optical fiber light source;

6. an optical fiber wire;

7. an adapter;

8. a lens assembly;

9. grid plate pressing ring;

10. and a diffusion plate.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it will be understood that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Furthermore, the terms "long," "short," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description of the present utility model, and are not intended to indicate or imply that the apparatus or elements referred to must have this particular orientation, operate in a particular orientation configuration, and thus should not be construed as limiting the utility model.

The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.

The utility model provides a combined structured light source and a visual detection system, which are suitable for application scenes of polishing and visual detection on a workpiece, and can effectively solve the problem that the brightness of the existing structured light source is difficult to upgrade and adjust.

Referring to fig. 2, in the present embodiment, the visual inspection system includes a combined structured light source for polishing the workpiece 100 and a camera 200 for visually inspecting the workpiece 100.

Wherein, referring to fig. 3, along the propagation path of the light, the combined structured light source is provided with an optical fiber light source 5, an optical fiber wire 6, a lens assembly 3 and a grid sheet 4 in order. The optical fiber light source 5 is provided with an optical outlet connector; one end of the optical fiber wire 6 is detachably connected with the light-emitting connector; one end of the lens assembly 3 is connected with the other end of the optical fiber line 6; the grid sheet 4 is positioned at the other end of the lens assembly 3, and a light transmission gap 401 is arranged on the grid sheet 4.

When the workpiece 100 needs to be polished, the light emitted by the optical fiber light source 5 irradiates the grid sheet 4 after passing through the optical fiber line 6 and the lens assembly 3 in sequence, and only the light irradiated to the light-transmitting gap 401 can irradiate the surface of the workpiece 100 outwards, and other light can be blocked by the grid sheet 4. Therefore, the shape of the detection beam irradiated to the surface of the workpiece 100 can be controlled by controlling the shape of the light-transmitting slit 401. For example, the light-transmitting slit 401 may be formed in a one-letter shape, a two-letter shape, a three-letter shape, a cross-letter shape, or the like, which is not limited in this embodiment.

Further, since the optical fiber wire 6 is detachably connected with the light emitting connector, when the workpiece 100 needs to be polished by using detection light beams with different brightness, the upgrade adjustment operation of the light emitting brightness can be completed only by replacing the optical fiber light sources 5 with different powers.

Therefore, the combined structure light source provided by the embodiment can effectively solve the problem that the brightness of the light emitting brightness of the existing structure light source is difficult to upgrade and adjust.

In this embodiment, an adapter 7 is disposed between the lens assembly 3 and the optical fiber 6. One end of the adapter 7 is fixedly connected with the optical fiber wire 6, and the other end of the adapter is detachably connected with the lens assembly 3. It will be appreciated that the adapter 7 is detachably connected to the lens assembly 3 for replacing optical fiber lines 6 of different lengths or gauge sizes.

Optionally, the other end of the lens assembly 3 is detachably connected with a lens assembly 8, and the grid sheet 4 is located between the lens assembly 3 and the lens assembly 8. The lens assembly 8 may focus the inspection beam so that the inspection beam may be more focused onto the surface of the workpiece 100.

Further, the lens assembly 8 is a focus lens so as to adjust the focal length of the detection beam.

In this embodiment, referring to fig. 4, the lens assembly 3 includes a housing 302 and a plurality of optical lenses 301 positioned within the housing 302. The side of the grid sheet 4 close to the lens assembly 8 is provided with a grid sheet pressing ring 9 for pressing the grid sheet 4 on the shell 302.

In this embodiment, the optical fiber wire 6 and the light emitting connector may be screwed, clamped or fastened by a fastening device such as a machine screw; the adapter 7 and the lens assembly 3 can be in threaded connection, clamping connection or fastening connection through fasteners such as machine screws; the lens component 3 and the lens component 8 can be in threaded connection, clamping connection or fastening connection through fasteners such as machine screws; the grid pressing ring 9 and the shell 302 may be in threaded connection, clamping connection or fastening connection through a machine screw or other fasteners.

Optionally, a diffusion plate 10 is disposed on a side of each optical lens 301 away from the grid sheet 4, so that the light beam is uniformly irradiated onto the optical lens 301.

In this embodiment, a heat dissipation hole is formed at the bottom of the optical fiber light source 5, and further, a heat dissipation fan is disposed at the heat dissipation hole, so as to optimize the heat dissipation performance of the optical fiber light source 5.

It should be noted that, the optical fiber light source 5 may be a conventional product in the market, and the specific structure thereof is not the key point of the embodiment, so that the description is omitted.

The combined structure light source provided by the embodiment has the following advantages:

(1) the lens component 3 is detachably connected with the optical fiber light source 5 through the optical fiber wire 6, and the upgrading and adjustment of the brightness of the light can be completed only by replacing the optical fiber light sources 5 with different powers;

(2) the lens assembly 3 is connected with a zoom lens so as to adjust the focal length of the detection light beam;

(3) the detachable connection structure is arranged between the lens component 8 and the shell 302 and between the grid sheet pressing ring 9 and the shell 302, so that the grid sheet 4 with the light-transmitting gaps 401 with different shapes can be replaced.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims (9)

1. A combined structured light source, characterized by, along the propagation path of light, in order:

the optical fiber light source (5), the optical fiber light source (5) is provided with an optical outlet connector;

the optical fiber line (6), one end of the optical fiber line (6) is detachably connected with the light-emitting connector;

a lens assembly (3), one end of the lens assembly (3) is connected with the other end of the optical fiber line (6);

the grid piece (4), grid piece (4) are located the other end of lens subassembly (3), just be equipped with printing opacity gap (401) on grid piece (4).

2. A combined structured light source according to claim 1, characterized in that an adapter (7) is arranged between the lens assembly (3) and the optical fiber line (6).

3. A combined structured light source according to claim 2, characterized in that one end of the adapter (7) is fixedly connected with the optical fiber line (6) and the other end is detachably connected with the lens assembly (3).

4. A combined structured light source according to claim 1, characterized in that the other end of the lens assembly (3) is connected to a lens assembly (8), the grating sheet (4) being located between the lens assembly (3) and the lens assembly (8).

5. The combined structured light source according to claim 4, wherein the lens assembly (8) is a focus lens.

6. The combined structured light source according to claim 4, wherein a grid sheet pressing ring (9) for pressing the grid sheet (4) onto the lens assembly (8) is provided on a side of the grid sheet (4) close to the lens assembly (8).

7. A combined structured light source according to claim 1, characterized in that the lens assembly (3) comprises a housing (302) and several optical lenses (301) located within the housing (302).

8. The combined structured light source according to claim 7, wherein a diffusion plate (10) is provided on a side of each of the optical lenses (301) remote from the grid sheet (4).

9. A visual inspection system comprising a camera (200) and a combined structured light source according to any one of claims 1 to 8.