Combined light source for machine vision

Abstract

The utility model discloses a combination light source for machine vision relates to in detection light source technical field. The combination light source for machine vision includes first light emitting component, second light emitting component and shell, the reflection layer is set up on the top wall surface of accommodating cavity, the first light emitting component is towards the top wall of accommodating cavity and sets up, and the second light emitting piece can be along the first horizontal direction and is set up on the inside wall of accommodating cavity and can revolve around the second horizontal axis, the first light shield can revolve around the second horizontal axis and set up on the side end upper portion of the light emitting face of second light emitting piece, and the second light shield is connected with the one end of first light shield and is away from second light emitting piece. The position of first light shield and second light shield is adjusted by rotating, and the position of second light shield is adjusted, and the degree of second light shield blocking dome light is increased or reduced, and the influence that first light emitting component causes to second light emitting piece is increased or reduced, and the adjustable degree is higher, can satisfy the complex illumination demand.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to a combined light source for machine vision. Background Technology

[0002] Most existing combined light sources consist of dome lights and strip side lights. When illuminating the object to be inspected, the dome lights and strip side lights are usually triggered sequentially at intervals. The camera detection module needs to perform two detections, which results in low detection efficiency. To improve detection efficiency, the dome lights and strip side lights can be triggered simultaneously, requiring only one detection by the camera detection module. However, because the dome lights have a large illumination range and high brightness, they can easily affect the optical path of the strip side lights and may accidentally illuminate them directly, affecting the illumination effect. But if the brightness of the dome lights is reduced, the overall structure illumination effect of the object to be inspected cannot be guaranteed. Furthermore, since the position of the strip side lights inside the combined light source is usually fixed, the angle and position of the emitted light rays are fixed, making it difficult to meet complex illumination requirements when dealing with different objects to be inspected. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a combined light source for machine vision, which can increase or decrease the influence of the first light-emitting component on the second light-emitting component, can realize active control of the light field, has a high degree of adjustability, and can meet complex lighting needs.

[0004] To achieve the above objectives, this utility model provides a combined light source for machine vision. The combined light source for machine vision includes a housing, a first light-emitting component, and a second light-emitting component. The housing includes a shell and a reflective layer. The shell has a receiving cavity and an opening. The opening is located at the bottom end of the shell and communicates with the receiving cavity. The top wall of the receiving cavity is an upwardly concave curved surface, and the reflective layer is disposed on the top wall of the receiving cavity. The first light-emitting component is disposed within the receiving cavity and faces the top wall of the receiving cavity. The second light-emitting component is disposed within the receiving cavity and is located below the first light-emitting component. The second light-emitting component includes a first light-blocking plate, a second light-blocking plate, and a second light-emitting element; the second light-emitting element is movable along a first horizontal direction and rotatable around a second horizontal axis and is disposed on the inner side wall of the receiving cavity; a light-emitting surface is provided at the middle of one side end of the second light-emitting element, and the first light-blocking plate is rotatable around the second horizontal axis and is disposed on the upper part of the side end of the second light-emitting element where the light-emitting surface is provided; the second light-blocking plate is telescopically connected to the end of the first light-blocking plate away from the second light-emitting element; wherein, the axial direction of the second horizontal axis is the second horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other.

[0005] Furthermore, the second light-emitting component also includes a hinge; the hinge is connected to the upper side of the first light-blocking plate and the second light-emitting component, respectively.

[0006] Furthermore, a slot is provided at the end of the first light-blocking plate away from the second light-emitting element, the second light-blocking plate is slidably inserted into the slot, and the second light-blocking plate is at least partially located outside the slot.

[0007] Furthermore, the second light-emitting component also includes a first connector; a groove is provided on the inner sidewall of the receiving cavity along the second horizontal direction, and the groove extends along the first horizontal direction; the side end of the second light-emitting component is slidably disposed in the groove; the first connector detachably connects the second light-emitting component and the housing.

[0008] Furthermore, the second light-emitting component also includes a slider; the second light-emitting element includes a rotating shaft, a second connecting member, and a second base; the slider is slidably disposed within the groove; the side of the slider is provided with a first connecting hole, a second connecting hole, and an arc-shaped groove; the inner sidewall of the groove is provided with a mounting groove extending along the first horizontal direction, the mounting groove extending through to the outer sidewall of the housing in the second horizontal direction; the first connecting member is detachably disposed through the first connecting hole and the mounting groove to detachably connect the slider and the housing; the second base is provided with a rotating hole and a third connecting hole; the rotating shaft is rotatably disposed through the rotating hole and the second connecting hole; the second connecting member is detachably disposed through the arc-shaped groove and the third connecting hole to detachably connect the slider and the second base.

[0009] Furthermore, there are two of each of the first and second light-emitting components; the two first light-emitting components are located on both sides of the cavity along the first horizontal direction and are symmetrically arranged; the two second light-emitting components are located below the two first light-emitting components.

[0010] Furthermore, the housing also includes a support plate and a third connector; the support plate is disposed within the receiving cavity, the first light-emitting component is disposed at the top of the support plate, and the third connector detachably connects the support plate and the housing.

[0011] Furthermore, the outer wall of the housing is provided with a plurality of first through holes arranged sequentially at intervals in the vertical direction, and the first through holes are connected to the receiving cavity; the side end of the support plate is provided with a fourth connecting hole, and the third connector passes through the fourth connecting hole and one of the first through holes to detachably connect the support plate and the housing.

[0012] Furthermore, it also includes a third light-emitting component; the third light-emitting component is ring-shaped, and an annular light-emitting surface is provided on the inner side of the third light-emitting component. The third light-emitting component is disposed in the receiving cavity and is located below the second light-emitting component.

[0013] Furthermore, the housing also includes a fourth connector; the outer side wall of the housing is provided with a plurality of second through holes arranged in sequence along the vertical direction, the second through holes communicating with the receiving cavity; the side end of the third light-emitting component is provided with a fifth connecting hole, and the fourth connector passes through the fifth connecting hole and one of the second through holes to detachably connect the third light-emitting component and the housing.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The workpiece to be tested can be placed at the opening of the housing, and the first light-emitting component is set facing the top wall of the receiving cavity, so that the first light-emitting component can shoot light towards the top wall of the receiving cavity and illuminate the reflective layer set on the top wall of the receiving cavity. The reflective layer then reflects the light to the opening, so as to realize the dome light illumination of the workpiece to be tested and provide uniform illumination for the workpiece to be tested; the second light-emitting component is inside the receiving cavity, and the second light-emitting component can move along the first horizontal direction and rotate around the second horizontal axis, so as to adjust the position of the second light-emitting component in the receiving cavity and adjust the angle of the light emitted from the light-emitting surface of the second light-emitting component, thereby meeting complex lighting needs.

[0015] 2. A first light-blocking plate is provided on the upper part of the side end of the second light-emitting element where the light-emitting surface is provided. The first light-blocking plate can block part of the dome light reflected from the reflective layer, thereby reducing the influence of the light emitted by the first light-emitting component on the light-emitting surface of the second light-emitting element. It can also block part of the light path of the dome light illuminating the workpiece to be inspected, reducing the influence on the light path emitted by the second light-emitting element. The first light-blocking plate can rotate relative to the second light-emitting element around the second horizontal axis. A second light-blocking plate is provided at the end of the first light-blocking plate away from the second light-emitting element. The second light-blocking plate is telescopically connected to the first light-blocking plate, so that the position of the second light-blocking plate can be adjusted to increase or decrease the degree to which the second light-blocking plate blocks the dome light. Furthermore, by rotating the first light-blocking plate, the positions of the first and second light-blocking plates can be adjusted according to specific inspection requirements, increasing or decreasing the influence of the first light-emitting component on the second light-emitting element. The degree of adjustability is high, and active control of the light field can be achieved to meet complex lighting needs. Attached Figure Description

[0016] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the combined light source for machine vision according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the combined light source for machine vision according to this utility model;

[0019] Figure 3 This is a schematic diagram of the housing of the combined light source for machine vision according to this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the second light-emitting component of the combined light source for machine vision according to the present invention.

[0021] Figure 5 This is a schematic diagram of the slider of the combined light source for machine vision according to this utility model.

[0022] Reference numerals: First light-emitting component 100; Second light-emitting component 200; First light-blocking plate 210; Slot 211; Second light-blocking plate 220; Second light-emitting element 230; Second base 231; Rotating hole 232; Third connecting hole 233; Diffusing plate 234; Light outlet 235; Receiving groove 236; Slider 240; First connecting hole 241; Second connecting hole 242; Arc groove 243; Outer shell 300; Housing 310; Receiving cavity 311; Opening 312; Slide 313; First through hole 314; Second through hole 315; Mounting groove 316; Detection port 317; Support plate 320; Fourth connecting hole 321; Reflective layer 330; Third light-emitting component 400; Fifth connecting hole 401. Detailed Implementation

[0023] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] 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.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions 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.

[0026] Please see Figures 1 to 5 This utility model provides a combined light source for machine vision, comprising a first light-emitting component 100, a second light-emitting component 200, and a housing 300. The housing 300 includes a shell 310 and a reflective layer 330. The shell 310 has a receiving cavity 311 and an opening 312. The opening 312 is located at the bottom end of the shell 310 and communicates with the receiving cavity 311. The top wall of the receiving cavity 311 is an upwardly concave curved surface, and the reflective layer 330 is located on the top wall of the receiving cavity 311. The first light-emitting component 100 is disposed within the receiving cavity 311 and faces the top wall of the receiving cavity 311. The second light-emitting component 200 is disposed within the receiving cavity 311 and is located... Below the first light-emitting component 100; the second light-emitting component 200 includes a first light-blocking plate 210, a second light-blocking plate 220, and a second light-emitting element 230; the second light-emitting element 230 is movable along a first horizontal direction and rotatable around a second horizontal axis and is disposed on the inner side wall of the receiving cavity 311; a light-emitting surface is provided at the middle of one side end of the second light-emitting element 230, and the first light-blocking plate 210 is rotatable around the second horizontal axis and is disposed on the upper part of the side end of the second light-emitting element 230 where the light-emitting surface is provided; the second light-blocking plate 220 is telescopically connected to the end of the first light-blocking plate 210 away from the second light-emitting element 230; wherein, the axial direction of the second horizontal axis is the second horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other.

[0027] 1. The workpiece to be inspected can be placed at the opening 312 of the housing 310. The first light-emitting component 100 is positioned facing the top wall of the receiving cavity 311, so that the first light-emitting component 100 can shoot light towards the top wall of the receiving cavity 311 and illuminate the reflective layer 330 disposed on the top wall of the receiving cavity 311. The reflective layer 330 then reflects the light back to the opening 312, thereby illuminating the workpiece to be inspected with dome light and providing uniform illumination for the workpiece to be inspected. The second light-emitting component 200 is located inside the receiving cavity 311. The second light-emitting component 230 can move along the first horizontal direction and can rotate around the second horizontal axis, so that the position of the second light-emitting component 230 inside the receiving cavity 311 can be adjusted, and the angle of the light emitted from the light-emitting surface of the second light-emitting component 230 can be adjusted, thereby meeting complex lighting needs.

[0028] 2. A first light-blocking plate 210 is provided on the upper part of the side end where the light-emitting surface is provided on the second light-emitting element 230. The first light-blocking plate 210 can block part of the dome light reflected from the reflective layer 330, thereby reducing the influence of the light emitted from the first light-emitting component 100 on the light-emitting surface of the second light-emitting element 230. It can also block part of the light path of the dome light illuminating the workpiece to be inspected, reducing the influence on the light path of the light emitted from the second light-emitting element 230. The first light-blocking plate 210 can rotate relative to the second light-emitting element 230 around the second horizontal axis, and the first light-blocking plate 210 moves away from the second light-emitting element 230. A second light-blocking plate 220 is provided at one end of the light element 230. The second light-blocking plate 220 is telescopically connected to the first light-blocking plate 210 so that the position of the second light-blocking plate 220 can be adjusted to increase or decrease the degree to which the second light-blocking plate 220 blocks the dome light. Furthermore, by rotating the first light-blocking plate 210, the positions of the first light-blocking plate 210 and the second light-blocking plate 220 can be adjusted according to specific detection requirements to increase or decrease the impact of the first light-emitting component 100 on the second light-emitting component 230. The degree of adjustability is high, and the light field can be actively controlled to meet complex lighting needs.

[0029] Specifically, through the cooperation of the first light-emitting component 100 and the reflective layer 330, the dome light can be irradiated onto the workpiece to be inspected, so as to uniformly illuminate the overall structure of the workpiece to be inspected; by rotating the second light-emitting component 200, side light can be emitted to accurately highlight three-dimensional features such as side wall scratches, surface textures, and welding contours.

[0030] Specifically, the first light-emitting component 100 can be a lamp panel structure.

[0031] Specifically, one end of the second light-emitting element 230 is disposed on the inner sidewall of the receiving cavity 311 along the second horizontal direction.

[0032] Specifically, the first horizontal direction is aligned with the width direction of the housing 310 and the width direction of the second light-emitting element 230, and the second horizontal direction is aligned with the length direction of the housing 310 and the length direction of the second light-emitting element 230.

[0033] Specifically, the second light-emitting element can rotate from 0° to 90°.

[0034] Reference Figure 1 and Figure 2 In some embodiments of this utility model, there are two first light-emitting components 100 and two second light-emitting components 200; the two first light-emitting components 100 are located on both sides inside the receiving cavity 311 along the first horizontal direction and are symmetrically arranged; the two second light-emitting components 200 are located below the two first light-emitting components 100.

[0035] Both first light-emitting components 100 are inclined and emit light towards the top wall of the receiving cavity 311 in an upward inclined direction. The light emitted by the first light-emitting components 100 is then reflected by the reflective layer 330 to achieve the emission of dome light. The two first light-emitting components 100 are symmetrically arranged with respect to the second horizontal direction, and the top wall of the receiving cavity 311 is symmetrically arranged with respect to the second horizontal direction to emit uniform dome light.

[0036] The two second light-emitting components 200 are respectively disposed in the receiving cavity 311 along the first horizontal direction and are respectively located below the two first light-emitting components 100. The two second light-emitting components 200 are symmetrically arranged with respect to the second horizontal direction so that the workpiece to be inspected can be inspected from both sides.

[0037] Specifically, the position of a second light-emitting component 200 within the receiving cavity 311 can be adjusted independently, with a high degree of adjustability to meet complex lighting needs.

[0038] Specifically, the second light-emitting component 200 is located below the first light-emitting component 100 in the horizontal direction. The second light-emitting component 200 can be moved to a position directly below the first light-emitting component 100, and has a high degree of adjustability.

[0039] Reference Figure 2 and Figure 3 In some embodiments of this utility model, the second light-emitting component 200 further includes a first connector; a groove 313 is provided on the inner sidewall of the receiving cavity 311 along the second horizontal direction, and the groove 313 extends along the first horizontal direction; the side end of the second light-emitting component 230 is slidably disposed in the groove 313; the first connector detachably connects the second light-emitting component 230 and the housing 310.

[0040] By setting the slide groove 313, the sliding direction of the second light-emitting element 230 can be limited, thereby improving the stability of the movement of the second light-emitting element 230. After the movement is completed, the housing 310 and the second light-emitting element 230 can be fixedly connected by the first connector to ensure the lighting effect of the second light-emitting element 230.

[0041] Specifically, grooves 313 are provided on the two opposite inner sidewalls of the receiving cavity 311 along the second horizontal direction, and the two ends of the second light-emitting element 230 along the second horizontal direction are respectively disposed in the two grooves 313, thereby improving the sliding stability of the second light-emitting element 230.

[0042] Specifically, one side of each of the two second light-emitting elements 230 is slidably disposed in a groove 313.

[0043] Reference Figure 1 , Figures 3 to 5 In some embodiments of this utility model, the second light-emitting component 200 further includes a slider 240; the second light-emitting element 230 includes a rotating shaft, a second connecting member, and a second base 231; the slider 240 is slidably disposed in the slide groove 313; the side of the slider 240 is provided with a first connecting hole 241, a second connecting hole 242, and an arc-shaped groove 243; the inner sidewall of the slide groove 313 is provided with a mounting groove 316 extending along a first horizontal direction, and the mounting groove 316 extends through to the housing 31. 0 On the outer side wall in the second horizontal direction; the first connector is detachably inserted through the first connecting hole 241 and the mounting groove 316 to detachably connect the slider 240 and the housing 310; the second seat 231 is provided with a rotating hole 232 and a third connecting hole 233; the rotating shaft is rotatably inserted through the rotating hole 232 and the second connecting hole 242; the second connector is detachably inserted through the arc groove 243 and the third connecting hole 233 to detachably connect the slider 240 and the second seat 231.

[0044] The second seat 231 is connected to the slider 240 by a rotating shaft. The length direction of the rotating shaft is the second horizontal direction, which allows the second seat 231 to rotate relative to the slider 240 around the second horizontal axis. After rotating to a predetermined position, the second seat 231 and the slider 240 are fixedly connected by a second connection. The degree of rotation of the second seat 231 relative to the slider 240 can be limited by setting an arc groove 243. The slider 240 can slide in the slide groove 313 to drive the second seat 231 to move. After the slider 240 moves to the predetermined position, the slider 240 and the housing 310 are fixedly connected by a first connector to limit the position of the second seat 231.

[0045] Specifically, it also includes a second light-emitting structure. A diffuser plate 234, a light-emitting port 235, and a receiving groove 236 are provided on the second base 231. The second light-emitting structure is disposed in the receiving cavity 311, and the diffuser plate 234 is disposed at the light-emitting port 235. The second light-emitting structure can emit light, and the light can pass through the diffuser plate 234 and be emitted outward. The end face of the diffuser plate 234 away from the second light-emitting structure is the light-emitting surface of the second light-emitting element 230.

[0046] In some embodiments of this utility model, the second light-emitting component 200 further includes a hinge; the hinge is connected to the upper side of the first light-blocking plate 210 and the second light-emitting component 230 respectively.

[0047] The first light-blocking plate 210 and the second light-emitting element 230 can rotate relative to the second horizontal axis by setting a hinge.

[0048] The hinge can be a damping structure to fix the relative positions of the first light-blocking plate 210 and the second light-emitting element 230, and to prevent the first light-blocking plate 210 and the second light-emitting element 230 from moving unexpectedly.

[0049] Specifically, the hinge is installed on the second seat 231 and connected to the first light-blocking plate 210.

[0050] Reference Figure 2 In some embodiments of this utility model, a slot 211 is provided at one end of the first light-blocking plate 210 away from the second light-emitting element 230, and the second light-blocking plate 220 is slidably inserted into the slot 211, and the second light-blocking plate 220 is at least partially located outside the slot 211.

[0051] By setting the slot 211, the direction of movement of the second light-blocking plate 220 relative to the first light-blocking plate 210 can be limited. By controlling the length of the extension of the second light-blocking plate 220, the light-blocking effect of the second light-blocking plate 220 can be adjusted, and the degree of adjustment is good.

[0052] Specifically, the length directions of the first light-blocking plate 210 and the second light-blocking plate 220 are aligned with the length direction of the second light-emitting element 230 to ensure the effect of the first light-blocking plate 210 and the second light-blocking plate 220 in blocking the dome light.

[0053] Reference Figure 1 and Figure 2 In some embodiments of this utility model, the outer shell 300 further includes a support plate 320 and a third connector; the support plate 320 is disposed in the receiving cavity 311, the first light-emitting component 100 is disposed at the top of the support plate 320, and the third connector is detachably connected to the support plate 320 and the shell 310.

[0054] The position of the first light-emitting component 100 can be defined by setting the support plate 320.

[0055] Specifically, an inclined surface is provided on the support plate 320, and the first light-emitting component 100 is disposed on the inclined surface.

[0056] Specifically, the support plate 320 is annular, and a detection port 317 is provided on the top wall of the receiving cavity 311, which is vertically through. The support plate 320 is vertically aligned with the detection port 317.

[0057] Reference Figures 1 to 3 In some embodiments of this utility model, a plurality of first through holes 314 are provided on the outer side wall of the housing 310, which are arranged sequentially and spaced apart in the vertical direction. The first through holes 314 are connected to the receiving cavity 311. A fourth connecting hole 321 is provided on the side end of the support plate 320. A third connector passes through the fourth connecting hole 321 and one of the first through holes 314 to detachably connect the support plate 320 and the housing 310.

[0058] The first light-emitting component 100 is installed on the top of the support plate 320. The support plate 320 can be moved up and down. The third connector can be selected to pass through any of the first through holes 314 and the fourth connecting hole 321 among the multiple first through holes 314, so that the position of the support plate 320 can be controlled in the vertical direction, thereby adjusting the position of the first light-emitting component 100 in the vertical direction and improving adaptability.

[0059] Reference Figure 1 and Figure 2 In some embodiments of this utility model, a third light-emitting component 400 is also included; the third light-emitting component 400 is annular, and an annular light-emitting surface is provided on the inner side of the third light-emitting component 400. The third light-emitting component 400 is disposed in the receiving cavity 311 and is located below the second light-emitting component 200.

[0060] The third light-emitting component 400 can illuminate the workpiece under inspection with low-angle light to detect defects such as edge chipping, pin coplanarity, and component tombstoning.

[0061] Reference Figures 1 to 3 In some embodiments of this utility model, the outer shell 300 further includes a fourth connector; a plurality of second through holes 315 arranged in sequence along the vertical direction are provided on the outer side wall of the shell 310, and the second through holes 315 are connected to the receiving cavity 311; a fifth connecting hole 401 is provided on the side end of the third light-emitting component 400, and the fourth connector passes through the fifth connecting hole 401 and one of the second through holes 315 to detachably connect the third light-emitting component 400 and the shell 310.

[0062] The third light-emitting component 400 can be moved up and down to allow the fourth connector to pass through any of the multiple second through holes 315 and the fourth connecting hole 321, thereby enabling the vertical control of the position of the third light-emitting component 400 and thus adjusting the position of the third light-emitting component 400 in the vertical direction, improving adaptability.

[0063] Specifically, the third light-emitting component 400 consists of a mounting base and four lamp panels; the mounting base is ring-shaped, and an annular groove is provided on the inner side of the mounting base. The four lamp panels are connected end to end in sequence and arranged opposite each other in pairs, and are placed in the annular groove to provide annular light.

[0064] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A combined light source for machine vision, characterized in that, include: The outer casing includes a housing and a reflective layer; the housing is provided with a receiving cavity and an opening; the opening is located at the bottom end of the housing and communicates with the receiving cavity; the top wall surface of the receiving cavity is an upwardly concave curved surface, and the reflective layer is located on the top wall surface of the receiving cavity; A first light-emitting component is disposed within the receiving cavity and faces the top wall of the receiving cavity; A second light-emitting component is disposed within the receiving cavity and located below the first light-emitting component. The second light-emitting component includes a first light-blocking plate, a second light-blocking plate, and a second light-emitting element. The second light-emitting element is movable along a first horizontal direction and rotatable around a second horizontal axis, and is disposed on the inner wall of the receiving cavity. A light-emitting surface is provided at the middle of one side end of the second light-emitting element, and the first light-blocking plate is rotatable around the second horizontal axis and is disposed on the upper part of the side end of the second light-emitting element where the light-emitting surface is provided. The second light-blocking plate is telescopically connected to the end of the first light-blocking plate away from the second light-emitting element. Wherein, the axial direction of the second horizontal axis is the second horizontal direction, and the first horizontal direction and the second horizontal direction are set perpendicular to each other.

2. The combined light source for machine vision according to claim 1, characterized in that, The second light-emitting component also includes a hinge; the hinge is connected to the upper side of the first light-blocking plate and the second light-emitting component respectively.

3. The combined light source for machine vision according to claim 1, characterized in that, The first light-blocking plate has a slot at one end away from the second light-emitting element, the second light-blocking plate is slidably inserted into the slot, and the second light-blocking plate is at least partially located outside the slot.

4. The combined light source for machine vision according to claim 1, characterized in that, The second light-emitting component further includes a first connector; a groove is provided on the inner sidewall of the receiving cavity along the second horizontal direction, and the groove extends along the first horizontal direction; the side end of the second light-emitting component is slidably disposed in the groove; the first connector detachably connects the second light-emitting component and the housing.

5. The combined light source for machine vision according to claim 4, characterized in that, The second light-emitting component further includes a slider; the second light-emitting element includes a rotating shaft, a second connecting member, and a second base; the slider is slidably disposed within the groove; the side of the slider is provided with a first connecting hole, a second connecting hole, and an arc-shaped groove; the inner sidewall of the groove is provided with a mounting groove extending along the first horizontal direction, the mounting groove extending through to the outer sidewall of the housing in the second horizontal direction; the first connecting member is detachably disposed through the first connecting hole and the mounting groove to detachably connect the slider and the housing; the second base is provided with a rotating hole and a third connecting hole; the rotating shaft is rotatably disposed through the rotating hole and the second connecting hole; the second connecting member is detachably disposed through the arc-shaped groove and the third connecting hole to detachably connect the slider and the second base.

6. The combined light source for machine vision according to claim 1, characterized in that, There are two of each of the first and second light-emitting components; the two first light-emitting components are located on both sides of the cavity along the first horizontal direction and are symmetrically arranged; the two second light-emitting components are located below the two first light-emitting components.

7. The combined light source for machine vision according to claim 1, characterized in that, The housing also includes a support plate and a third connector; the support plate is disposed within the receiving cavity, the first light-emitting component is disposed at the top of the support plate, and the third connector detachably connects the support plate and the housing.

8. The combined light source for machine vision according to claim 7, characterized in that, The outer wall of the housing is provided with a plurality of first through holes arranged in a vertical direction at intervals, and the first through holes are connected to the receiving cavity; the side end of the support plate is provided with a fourth connecting hole, and the third connector passes through the fourth connecting hole and one of the first through holes to detachably connect the support plate and the housing.

9. The combined light source for machine vision according to claim 1, characterized in that, It also includes a third light-emitting component; the third light-emitting component is ring-shaped, and an annular light-emitting surface is provided on the inner side of the third light-emitting component. The third light-emitting component is disposed in the receiving cavity and is located below the second light-emitting component.

10. The combined light source for machine vision according to claim 9, characterized in that, The housing also includes a fourth connector; a plurality of second through holes are arranged in sequence along the vertical direction on the outer side wall of the housing, and the second through holes are connected to the receiving cavity; a fifth connecting hole is provided on the side end of the third light-emitting component, and the fourth connector passes through the fifth connecting hole and one of the second through holes to detachably connect the third light-emitting component and the housing.

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