Adjustable parallel point light source

Abstract

The utility model discloses an adjustable parallel point light source which comprises a main body seat, the main body seat is of a hollow cylindrical structure, a first mounting inner cavity and an adjusting inner cavity are formed in the main body seat, a rotatable part is arranged on the first mounting inner cavity, and an adjustable structure capable of extending into the adjusting inner cavity is arranged on the main body seat; the optical lens positioning cylinder group is in clamping linkage with the rotatable part, the upper end of the optical lens positioning cylinder group is arranged in the adjusting inner cavity, and the upper end of the optical lens positioning cylinder group is connected with an adjustable structure; and the LED light source assembly is arranged in the lower end of the optical lens positioning cylinder group. According to the utility model, the direction of the emergent light of the LED circuit board can be adjusted and can be debugged to the required parallelism direction, so that the problem of low image detection accuracy caused by uncontrollable parallelism is solved, and the detection accuracy and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection light sources, and particularly relates to an adjustable parallel point light source. Background Art

[0002] In the appearance detection of a grinding wheel, this parallel point light source is used as the backlight, installed directly below the grinding wheel, and the camera lens is directly above the grinding wheel. This detection has very high requirements for the parallelism between the light source and the camera lens (the cross-section of the camera's photosensitive chip is parallel to the light-emitting port cross-section of the light source), or the axis of the camera lens and the axis of this parallel point light source need to be on the same axis. It is necessary to ensure that the light hits the grinding wheel and the camera's photosensitive chip vertically to ensure the accuracy and precision of the grinding wheel appearance detection.

[0003] Currently, common point light sources or parallel point light sources have light rays emitted in a fixed direction. Due to the problems of machining tolerances and assembly tolerances of parts in the detection equipment, it often leads to cumulative tolerances in the installation planes of the camera lens and the light source, and the flatness of the two is insufficient, affecting the authenticity of imaging and resulting in a low detection accuracy rate. If the parallelism of the installation planes of the light source and the camera is insufficient, it will lead to problems such as eccentricity, inaccuracy, and insufficient clarity of the detection image. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and provide an adjustable parallel point light source, which can adjust the direction of the light rays emitted by the LED circuit board, can be adjusted to the required parallelism direction, solves the problem of low accuracy rate of the detection image caused by uncontrollable parallelism, and improves the detection accuracy and efficiency.

[0005] To achieve the above purpose, the utility model provides an adjustable parallel point light source, including:

[0006] A main body seat, the main body seat is a hollow cylindrical structure, a first installation inner cavity and an adjustment inner cavity are formed in the main body seat, a rotatable member is arranged in the first installation inner cavity, and an adjustable structure that can extend into the adjustment inner cavity is arranged on the main body seat;

[0007] An optical lens positioning cylinder group, the optical lens positioning cylinder group is clamped and linked with the rotatable member, and the upper end of the optical lens positioning cylinder group is placed in the adjustment inner cavity, and the upper end of the optical lens positioning cylinder group is connected with the adjustable structure;

[0008] An LED light source assembly arranged inside the lower end of the optical lens positioning cylinder group.

[0009] Further, the adjustable structure includes an adjusting member and a plurality of groups of adjusting through holes arranged around and evenly on the main body seat. The adjusting through holes are communicated with the adjusting cavity. The adjusting member is detachably passed through the adjusting through holes and tightly abuts against the outer edge of the upper end of the optical lens positioning cylinder group to fix the direction of the optical lens positioning cylinder group. The precise fine adjustment of the angle of the optical lens positioning cylinder group can be achieved through the adjustable structures in multiple different directions around.

[0010] Further, the adjusting member is a setscrew. The setscrew can be twisted to extend or retract, so as to achieve the positioning of the optical lens positioning cylinder group.

[0011] Further, the optical lens positioning cylinder group includes a first optical lens positioning cylinder, a second optical lens positioning cylinder and a positioning cylinder connecting ring. A first inner groove is provided at the lower end of the first optical lens positioning cylinder. A second inner groove is provided at the upper end of the second optical lens positioning cylinder. The positioning cylinder connecting ring is a ring body with an opening on one side, and a closable fixing part is formed at the opening. A fixing bolt is provided on the fixing part. The positioning cylinder connecting ring is sleeved on the first inner groove and the second inner groove, and is fixed through the fixing part to realize the coaxial fixed connection of the first optical lens positioning cylinder and the second optical lens positioning cylinder. The coaxial connection of the first optical lens positioning cylinder and the second optical lens positioning cylinder is realized through the positioning cylinder connecting ring to ensure the parallel emission of internal light.

[0012] Further, the rotatable member includes a spherical plain bearing and a bearing fixing ring. A third inner groove is provided on the bearing fixing ring. The spherical plain bearing includes a bearing seat and a spherical joint movably arranged on the bearing seat. The bearing seat is fixed on the third inner groove. The bearing fixing ring is fixedly connected to the lower end of the main body seat. The spherical plain bearing is detachably and fixedly connected to the main body seat through the bearing fixing ring, making the structure more concise and more convenient and fast to install.

[0013] Further, a fixing nut is also included. A second mounting portion protruding outward is provided on the first optical lens positioning cylinder. After the first optical lens positioning cylinder passes through the spherical joint, the lower end surface of the second mounting portion abuts against the upper end of the spherical joint. The fixing nut is sleeved on the lower end of the first optical lens positioning cylinder and locks the lower end of the spherical joint to realize the linkage between the first optical lens positioning cylinder and the spherical joint. The fixed clamping of the first optical lens positioning cylinder can be achieved through the second mounting portion and the fixing nut, and then the linkage between the two can be realized, and the fine adjustment of the first optical lens positioning cylinder can be achieved.

[0014] Further, a protective glass and a cover plate are provided at the upper end of the main body seat. The protective glass is fixedly connected to the upper end of the main body seat through the cover plate. The cover plate and the protective glass can protect the internal components and prevent impurities from entering the interior and affecting the operation.

[0015] Furthermore, the cover plate is a hollow ring body, and a boss matching the thickness of the cover plate is provided at the upper end of the protective glass. The boss is sleeved on the cover plate. The setting of the boss cooperating with the ring body structure cover plate can adjust the installation stability of the protective glass and prevent it from shaking.

[0016] Furthermore, fourth inner grooves and fifth inner grooves are distributed from the inside to the outside at the upper end of the main body seat. A first sealing ring and a second sealing ring are respectively arranged on the fourth inner groove and the fifth inner groove. The first sealing ring and the second sealing ring are in close contact with the protective glass. By setting the first sealing ring and the second sealing ring, the sealing performance of the main body seat can be improved, and the components inside the main body seat can be protected to operate stably and are not easily affected by other impurities such as dust.

[0017] Furthermore, the LED light source assembly includes a heat dissipation seat detachably arranged at the lower end of the optical lens positioning cylinder group, an LED main board fixed on the heat dissipation seat, and a power line connected to the LED main board. By setting the heat dissipation seat, heat dissipation of the LED main board can be ensured to ensure its normal operation, and the LED main board is arranged inside the lower end of the optical lens positioning cylinder group through the heat dissipation seat, so that the LED main board can be coaxially arranged with the optical lens positioning cylinder group to form direct light, which is more conducive to light conduction.

[0018] Compared with the prior art, in the present utility model, a spherical plain bearing capable of realizing angular rotation is arranged inside the main body seat, and the spherical plain bearing is connected with the optical lens positioning cylinder group. An adjustable structure for positioning the optical lens positioning cylinder group is arranged on the main body seat to cooperate with the positioning after fine adjustment of the spherical plain bearing, so that the outgoing light direction of the LED light source assembly can be adjusted and can be adjusted to the required parallelism direction to achieve precise optical adjustment and functions, solving the problem of low accuracy of the detection image caused by uncontrollable parallelism, and greatly improving the detection accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a schematic structural diagram of an adjustable parallel point light source of the present utility model;

[0021] Figure 2 is Figure 1 the A-A cross-sectional schematic diagram of

[0022] Figure 3 is Figure 1 an explosion schematic diagram of

[0023] Figure 4 a structural schematic diagram of the main body seat of the present utility model;

[0024] Figure 5 a structural schematic diagram of the rotatable member of the present utility model;

[0025] Figure 6 is Figure 4 an explosion schematic diagram of

[0026] Figure 7 a state schematic diagram of the adjusting member locking the first optical lens positioning cylinder.

[0027] In the figure, there are included:

[0028] 1. Main body seat; 11. First installation inner cavity; 12. Adjusting inner cavity; 13. Flange; 14. Adjusting member; 15. Adjusting through hole; 16. Protective glass; 161. Boss; 17. Cover plate; 18. Fourth inner groove; 181. First sealing ring; 19. Fifth inner groove; 191. Second sealing ring; 2. Optical lens positioning cylinder group; 21. First optical lens positioning cylinder; 211. First inner groove; 212. Second installation part; 22. Second optical lens positioning cylinder; 221. Second inner groove; 23. Positioning cylinder connecting ring; 231. Fixing part; 232. Fixing bolt; 3. LED light source assembly; 31. Heat dissipation seat; 32. LED main board; 33. Power cord; 4. Rotatable member; 41. Spherical plain bearing; 411. Bearing seat; 412. Spherical joint; 42. Bearing fixing ring; 421. Third inner groove; 5. Fixing nut. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0033] Please refer to Figures 1 to 7 , an embodiment of the present utility model provides an adjustable parallel point light source, including a main body seat 1, an optical lens positioning cylinder group 2, and an LED light source assembly 3 disposed inside the lower end of the optical lens positioning cylinder group 2;

[0034] As Figures 1 to 3 shown, the main body seat 1 is a hollow cylindrical structure. A first installation inner cavity 11 and an adjustment inner cavity 12 are formed inside the main body seat 1. In this embodiment, the first installation inner cavity 11 and the adjustment inner cavity 12 communicate with each other, so that the inside of the main body seat 1 forms a through hollow cylinder. A flange 13 for installation is provided on the outer periphery of the main body seat 1. A rotatable member 4 is provided on the first installation inner cavity 11. As Figure 5 shown, the rotatable member 4 includes a spherical plain bearing 41 and a bearing fixing ring 42. A third inner groove 421 is provided on the bearing fixing ring 42. The spherical plain bearing 41 includes a bearing seat 411 and a spherical joint 412 movably disposed on the bearing seat 411. The bearing seat 411 is fixed on the third inner groove 421, and the bearing fixing ring 42 is fixedly connected to the lower end of the main body seat 1.

[0035] An adjustable structure that can extend into the adjustment cavity 12 is provided on the main body base 1. The adjustable structure includes an adjustment member 14 and multiple groups of adjustment through holes 15 that are arranged in a surrounding and evenly distributed manner on the main body base 1. The adjustment through holes 15 are communicated with the adjustment cavity 12. The adjustment member 14 can be detachably passed through the adjustment through holes 15 and tightly abutted against the outer edge of the upper end of the optical lens positioning cylinder group 2 to fix the direction of the optical lens positioning cylinder group 2. In this embodiment, the adjustment member 14 is a machine screw, and the optical lens positioning cylinder group 2 can be positioned by twisting the machine screw to extend in or out. It should be noted that the number of the adjustment through holes 15 and the adjustment member 14 can be set according to actual needs. For example, in this embodiment, fourteen groups of surrounding adjustment through holes 15 are provided on the main body base 1, and fourteen adjustment members 14 are adaptively provided. Of course, the adjustment through holes 15 and the adjustment member 14 can be sixteen, eighteen, twenty, etc.;

[0036] In this embodiment, the optical lens positioning cylinder group 2 is clamped and linked with the rotatable member 4, and the upper end of the optical lens positioning cylinder group 2 is placed in the adjustment cavity 12, and the upper end of the optical lens positioning cylinder group 2 abuts against the adjustment member 14. Specifically, it is set as follows: The optical lens positioning cylinder group 2 in this embodiment includes a first optical lens positioning cylinder 21, a second optical lens positioning cylinder 22, and a positioning cylinder connecting ring 23. A first inner groove 211 is provided at the lower end of the first optical lens positioning cylinder 21, and a second inner groove 221 is provided at the upper end of the second optical lens positioning cylinder 22. The positioning cylinder connecting ring 23 is a ring body with an opening on one side, and a closable fixing portion 231 is formed at the opening. A fixing bolt 232 is provided on the fixing portion 231. During assembly, the positioning cylinder connecting ring 23 is respectively sleeved on the first inner groove 211 and the second inner groove 221, and the first optical lens positioning cylinder 21 and the second optical lens positioning cylinder 22 are coaxially and fixedly connected through the fixing of the fixing portion 231; In this embodiment, a fixing nut 5 for clamping the spherical plain bearing 41 and the first optical lens positioning cylinder 21 is also provided. As shown in the figure, a second mounting portion 212 protruding outward is provided on the first optical lens positioning cylinder 21. During installation, the lower end of the first optical lens positioning cylinder 21 first passes through the spherical joint 412, so that the lower end surface of the second mounting portion 212 abuts against the upper end of the spherical joint 412, and then the fixing nut 5 is sleeved on the lower end of the first optical lens positioning cylinder 21 and the fixing nut 5 is tightened to lock the lower end of the spherical joint 412. In this way, the first optical lens positioning cylinder 21 is linked with the spherical joint 412, and the first optical lens positioning cylinder 21 can freely rotate at different angles during use to adjust the light angle, with a high degree of freedom.

[0037] As Figures 1 to 3As shown in the figure, the above-mentioned LED light source assembly 3 includes a heat dissipation base 31 detachably arranged at the lower end of the optical lens positioning cylinder group 2, an LED main board 32 fixedly connected to the heat dissipation base 31, and a power cord 33 connected to the LED main board 32. By providing the heat dissipation base 31, heat dissipation of the LED main board 32 can be ensured to ensure its normal operation, and the LED main board 32 is arranged inside the lower end of the optical lens positioning cylinder group 2 through the heat dissipation base 31, so that the LED main board 32 can be coaxially arranged with the optical lens positioning cylinder group 2 to form direct light, which is more conducive to the conduction of light.

[0038] A protective glass 16 and a cover plate 17 are provided at the upper end of the main body base 1 to increase the dust-proof and waterproof functions of the main body base 1. The specific structure is as Figure 6 shown. The protective glass 16 is fixedly connected to the upper end of the main body base 1 through the cover plate 17. The cover plate 17 is a hollow ring body. A boss 161 matching the thickness of the cover plate 17 is provided at the upper end of the protective glass 16. The boss 161 is sleeved on the cover plate 17. The setting of the boss 161 and the ring body structure cover plate 17 can adjust the installation stability of the protective glass 16 and prevent it from shaking. Further, a fourth inner groove 18 and a fifth inner groove 19 are distributed from the inside to the outside at the upper end of the main body base 1. A first sealing ring 181 and a second sealing ring 191 are respectively provided on the fourth inner groove 18 and the fifth inner groove 19. The first sealing ring 181 and the second sealing ring 191 can be made of silicone gaskets or other sealing parts with the same effect. The first sealing ring 181 and the second sealing ring 191 are in close contact with the protective glass 16. By providing the first sealing ring 181 and the second sealing ring 191, the sealing performance of the main body base 1 can be improved, and the components inside the main body base 1 can be protected to operate stably and are not easily affected by dust and other impurities.

[0039] When the present utility model is in use, it is first installed on the workbench through the flange 13 of the main body base 1. During operation, the adjusting parts 14 in different directions can be loosened, and then the direction of the optical lens positioning cylinder group 2 can be finely adjusted so that the light can be parallel to the camera lens. When the optical lens positioning cylinder group 2 maintains this angle, the adjusting parts 14 at each position are adjusted so that the end of the adjusting part 14 placed in the adjusting cavity 12 is in close contact with the outer edge of the optical lens positioning cylinder group 2, as Figure 7 shown, to achieve 360° directional locking of the optical lens positioning cylinder group 2, that is, the parallelism between the optical lens positioning cylinder group 2 and the camera lens can be made consistent, solving the problem of low accuracy of the detected image caused by uncontrollable parallelism, and greatly improving the detection accuracy and efficiency.

[0040] The above are only the 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 principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An adjustable parallel point light source, characterized in that: include: A main body seat (1), the main body seat (1) being a hollow cylindrical structure, a first installation inner cavity (11) and an adjustment inner cavity (12) being formed in the main body seat (1), a rotatable part (4) being arranged on the first installation inner cavity (11), and an adjustable structure being arranged on the main body seat (1) and being capable of extending into the adjustment inner cavity (12); An optical lens positioning cylinder group (2), the optical lens positioning cylinder group (2) is connected to the rotatable member (4) in a locking manner, and the upper end of the optical lens positioning cylinder group (2) is placed in the adjustment inner cavity (12), and the upper end of the optical lens positioning cylinder group (2) is connected to the adjustable structure; An LED light source assembly (3) is arranged inside the lower end of the optical lens positioning tube assembly (2).

2. The adjustable parallel point light source according to claim 1, characterized in that: The adjustable structure comprises an adjusting member (14) and a plurality of adjusting through holes (15) circumferentially arranged on the main body seat (1); the adjusting through holes (15) are connected to the adjusting inner cavity (12); the adjusting member (14) detachably passes through the adjusting through holes (15) and tightly abuts against the outer edge of the upper end of the optical lens positioning tube group (2) to fix the direction of the optical lens positioning tube group (2).

3. The adjustable parallel point light source according to claim 2, characterized in that: The adjusting member (14) is a machine screw.

4. The adjustable parallel point light source according to claim 1, characterized in that: The optical lens positioning tube group (2) comprises a first optical lens positioning tube (21), a second optical lens positioning tube (22) and a positioning tube connecting ring (23); the lower end of the first optical lens positioning tube (21) is provided with a first inner groove (211); the upper end of the second optical lens positioning tube (22) is provided with a second inner groove (221); the positioning tube connecting ring (23) is a ring body with an opening on one side, a closable fixing portion (231) is formed at the opening, a fixing bolt (232) is provided on the fixing portion (231); the positioning tube connecting ring (23) is sleeved on the first inner groove (211) and the second inner groove (221), and the first optical lens positioning tube (21) and the second optical lens positioning tube (22) are fixedly connected coaxially through the fixing portion (231).

5. The adjustable parallel point light source according to claim 4, characterized in that: The rotatable part (4) comprises a joint bearing (41) and a bearing fixing ring (42), the bearing fixing ring (42) being provided with a third inner groove (421), the joint bearing (41) comprising a bearing seat (411) and a joint ball (412) movably arranged on the bearing seat (411), the bearing seat (411) being fixed on the third inner groove (421), and the bearing fixing ring (42) being fixedly connected to the lower end of the main body seat (1).

6. The adjustable parallel point light source according to claim 5, characterized in that: The invention also comprises a fixing nut (5); the first optical lens positioning tube (21) is provided with a second mounting portion (212) protruding outward; the lower end surface of the second mounting portion (212) abuts against the upper end of the joint ball (412); the fixing nut (5) is sleeved on the lower end of the first optical lens positioning tube (21) and locks the lower end of the joint ball (412), thereby realizing the linkage between the first optical lens positioning tube (21) and the joint ball (412).

7. The adjustable parallel point light source according to claim 1, characterized in that: The upper end of the main body seat (1) is provided with a protective glass (16) and a cover plate (17), and the protective glass (16) is fixed to the upper end of the main body seat (1) through the cover plate (17).

8. The adjustable parallel point light source according to claim 7, characterized in that: The cover plate (17) is a hollow ring body, and the upper end of the protective glass (16) is provided with a boss (161) whose thickness matches that of the cover plate (17), and the boss (161) is sleeved on the cover plate (17).

9. The adjustable parallel point light source according to claim 8, characterized in that: The upper end of the main body seat (1) is also provided with a fourth inner groove (18) and a fifth inner groove (19) distributed from the inside to the outside, and the fourth inner groove (18) and the fifth inner groove (19) are respectively provided with a first sealing ring (181) and a second sealing ring (191), and the first sealing ring (181) and the second sealing ring (191) are in tight contact with the protective glass (16).

10. The adjustable parallel point light source according to any one of claims 1 to 9, characterized in that: The LED light source assembly (3) comprises a heat sink (31) detachably arranged at the lower end of the optical lens positioning tube assembly (2), an LED main board (32) fixedly connected to the heat sink (31), and a power line (33) connected to the LED main board (32).

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