Laser collimating lens group

Abstract

The invention discloses a laser collimating lens group. The laser collimating lens group comprises a lens barrel, a light inlet is formed in the top end of the lens barrel, a light outlet is formed in the bottom end, and a plurality of lens cabinets are installed on the side face. The lens box is detachably installed in the lens cabinet. After entering the light inlet, external laser passes through the lens box and is emitted from the light outlet. The beneficial effects of the invention are that the adjustment mode of the existing collimating lens is improved, and when laser beams with different widths are needed, only the lens box needs to be taken out from one lens cabinet and inserted into other lens cabinets. When the collimation distance is not an ideal value, the distance between the lens and the laser emitting head can be further adjusted through the fine adjustment lifting mechanism, the steps of manually disassembling and reinstalling the lens are omitted, the adjustment time is greatly shortened, and the production efficiency and the machining precision of the laser machining equipment are remarkably improved. And meanwhile, the deviation risk caused by careless operation of an operator is also reduced.

Description

Technical Field

[0001] The invention relates to the technical field of collimating lenses, and in particular to a laser collimating lens group. Background Art

[0002] Collimating lens is a key component in laser system, which is widely used in laser processing, laser transmission and laser measurement. Specifically, the function of collimating lens is to collimate the divergent laser beam into a parallel beam and reduce the divergence angle of the beam.

[0003] In actual production, laser processing equipment is often used for a variety of processing tasks, such as cutting, marking, engraving, and so on. To ensure processing accuracy and quality, these tasks have strict requirements on the focusing effect and beam width of the laser beam. At this time, it is necessary to adjust the distance between the lens and the laser source to control the width and beam quality of the laser beam. However, in the current distance adjustment operation, the operator is required to disassemble the entire collimation device first, then adjust the angle or position of the lens, and finally reinstall it to ensure that the lens is fixed. The whole process is cumbersome, time-consuming, and prone to installation errors. At the same time, slight errors in each step may affect the distance or angle between the lens and the laser output head, thereby affecting the collimation and focusing effect of the laser beam and reducing processing accuracy. Summary of the invention

[0004] 1. Problems to be solved

[0005] The technical problem to be solved by the present invention is to provide a laser collimating lens group in view of the current status of the prior art.

[0006] (II) Technical solution

[0007] The present invention is achieved through the following technical solutions:

[0008] A laser collimating lens assembly includes a lens barrel, a light inlet is formed at the top of the lens barrel, a light outlet is formed at the bottom of the lens barrel, and a plurality of lens cabinets are installed on the side. The lens box is detachably installed in the lens cabinet. After the external laser enters the light inlet, it passes through the lens box and is emitted from the light outlet.

[0009] By adopting the above technical solution, when laser beams of different widths are needed, the lens box only needs to be taken out from one lens cabinet and inserted into another lens cabinet. There is no need to manually disassemble the collimating lens device, and the collimating lens is placed at the upper or lower end of the lens barrel, or the lens barrel part is disassembled and installed to control the optical path distance, thereby adjusting the laser beam width and focusing effect. It is easy to use, ingeniously designed, and simple to maintain, which greatly saves the time required to adjust the laser beam and improves production efficiency.

[0010] Furthermore, a collimating lens is installed in the lens cabinet.

[0011] Furthermore, the lens box includes a mounting and adjusting portion and a lens carrier.

[0012] Furthermore, the installation and adjustment part includes a shell clamped with the lens cabinet and a fine-adjustment lifting mechanism connected with the lens carrier and the lens carrier. The fine-adjustment lifting mechanism is used to adjust the lens carrier and the lens carrier.

[0013] Furthermore, the lens cabinet includes a snap-fitting groove and an inner supporting portion.

[0014] Furthermore, the inner support portion is arranged away from the central light receiving position of the lens box.

[0015] Furthermore, the fine-tuning lifting mechanism includes a linkage block and a follower cam abutting against the linkage block. The follower cam is installed in the central turntable, and an adjustment knob is installed on the outer side of the central turntable. When the adjustment knob is turned, the central turntable drives the follower cam to rotate, and the contact point between the follower cam and the linkage block changes, thereby changing the height of the linkage block and the mirror carrier.

[0016] Furthermore, the first lens cabinet, the second lens cabinet and the third lens cabinet are connected with the lens barrel by bolts. When the lens box is installed in lens cabinets of different heights, the laser passes through the collimating lens to obtain straight laser beams of different widths.

[0017] Furthermore, a rotating dial is arranged between the lens cabinet and the installation and adjustment part, and a scale indicating line is arranged on the central rotating dial.

[0018] (III) Beneficial effects

[0019] The present invention improves the existing adjustment method of the collimating lens. When laser beams of different widths are required, the lens box only needs to be taken out of one lens cabinet and inserted into another lens cabinet. When the collimation distance is not an ideal value, the distance between the lens and the laser output head can be further adjusted by fine-tuning the lifting mechanism, eliminating the steps of manually disassembling and reinstalling the lens, greatly shortening the adjustment time, and significantly improving the production efficiency and processing accuracy of the laser processing equipment. At the same time, it also reduces the risk of deviation caused by careless operation of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] Figure 1 is a front view of the laser collimating lens assembly of the present invention;

[0022] Figure 2 is a cross-sectional view of the laser collimating lens assembly of the present invention;

[0023] Figure 3It is a stereoscopic diagram of the installation adjustment part in the laser collimation lens assembly of the present invention;

[0024] The reference numerals are as follows:

[0025] 1. Lens barrel; 2. Light inlet; 3. Light outlet; 4. Lens cabinet; 5. Lens box; 6. Collimating lens; 7. Mounting adjustment unit; 8. Lens carrier; 9. Housing; 10. Fine-tuning lifting mechanism; 11. Engaging groove; 12. Inner support unit; 13. Center light receiving position; 14. Linkage block; 15. Follow-up cam; 16. Center turntable; 17. Adjustment knob; 18. Rotating dial; 19. Scale indicator line; 20. First lens cabinet; 21. Second lens cabinet; 22. Third lens cabinet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] See also Figure 1-Figure 3 The present invention provides a technical solution: a laser collimating lens group, comprising a lens barrel (1), wherein the lens barrel (1) is formed with a light inlet (2) at the top, a light outlet (3) at the bottom, and a plurality of lens cabinets (4) installed on the side. The lens box (5) is detachably installed in the lens cabinet (4). After the external laser enters the light inlet (2), it passes through the lens box (5) and is emitted from the light outlet (3). When laser beams of different widths are required, the lens box (5) only needs to be taken out of one lens cabinet (4) and inserted into another lens cabinet (4). There is no need to manually disassemble the collimating lens device, and the collimating lens (6) is placed at the upper end or lower end of the lens barrel (1), or the lens barrel (1) is partially disassembled and installed to control the optical path distance, thereby adjusting the laser beam width and focusing effect. It is easy to use, ingeniously designed, and simple to maintain, which greatly saves the time required for adjusting the laser beam and improves production efficiency.

[0029] Specifically, a collimating lens (6) is installed in the lens cabinet (4). The collimating lens (6) is used to adjust the laser beam from a divergent state to a parallel beam, and ensure that the laser beam maintains a consistent propagation direction and a smaller divergence angle during the propagation process.

[0030] Specifically, the lens box (5) comprises a mounting and adjusting portion (7) and a lens carrier (8). The lens carrier (8) is used to mount and fix the collimating lens.

[0031] Specifically, the installation adjustment part (7) includes a housing (9) clamped with the lens cabinet (4) and a fine-adjustment lifting mechanism (10) connected to the lens carrier (8). The fine-adjustment lifting mechanism (10) is used to adjust the lens carrier (8). Through this technical solution, when there is a deviation between the incident laser and the preset incident laser form, the fine-adjustment lifting mechanism (10) can be used to lift the lens carrier (8) up and down slightly, thereby obtaining the best collimation effect, thereby improving the beam adjustment capability and applicability.

[0032] Specifically, the lens cabinet (4) comprises a snap-fit ​​groove (11) and an inner support portion (12). The snap-fit ​​groove (11) and the inner support portion (12) are used to fix the lens box (5).

[0033] Specifically, the inner support portion (12) is arranged away from the central light receiving position (13) of the lens box (5).

[0034] Specifically, the fine adjustment lifting mechanism (10) comprises a linkage block (14) and a follower cam (15) abutting against the linkage block (14). The follower cam (15) is installed in a central rotating disk (16), and an adjusting knob (17) is installed outside the central rotating disk (16). When the adjusting knob (17) is turned, the central rotating disk (16) drives the follower cam (15) to rotate, and the contact point between the follower cam (15) and the linkage block (14) changes, thereby changing the height of the linkage block (14) and the mirror carrier (8).

[0035] Specifically, the first lens cabinet (20), the second lens cabinet (21) and the third lens cabinet (22) are bolted to the lens barrel (1). When the lens box (5) is installed in lens cabinets (4) at different heights, the laser passes through the collimating lens (6) to obtain straight laser beams of different widths.

[0036] Specifically, a rotating scale plate (18) is arranged between the lens cabinet (4) and the installation adjustment part (7), and a scale indicator line (19) is arranged on the central rotating disk (16). In this way, it is helpful for the operator to control the adjustment range well, making the micro-adjustment of the lens height simple and convenient.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser collimating lens assembly, characterized in that: The lens barrel (1) comprises a light inlet (2) formed at the top end, a light outlet (3) formed at the bottom end, and a plurality of lens cabinets (4) installed on the side; a lens box (5) is detachably installed in the lens cabinet (4); after external laser enters the light inlet (2), it passes through the lens box (5) and is emitted from the light outlet (3).

2. The laser collimating lens assembly according to claim 1, characterized in that: A collimating lens (6) is installed in the lens cabinet (4).

3. The laser collimating lens assembly according to claim 1, characterized in that: The lens box (5) comprises a mounting and adjusting portion (7) and a lens carrier (8).

4. The laser collimating lens assembly according to claim 3, characterized in that: The installation and adjustment part (7) comprises a shell (9) clamped with the lens cabinet (4) and a fine-adjustment lifting mechanism (10) connected with the lens carrier (8); the fine-adjustment lifting mechanism (10) is used to adjust the lens carrier (8).

5. The laser collimating lens assembly according to claim 4, characterized in that: The lens cabinet (4) comprises a snap-fit ​​groove (11) and an inner supporting portion (12).

6. The laser collimating lens assembly according to claim 5, characterized in that: The inner support portion (12) is arranged away from the central light receiving position (13) of the lens box (5).

7. The laser collimating lens assembly according to claim 4, characterized in that: The fine adjustment lifting mechanism (10) comprises a linkage block (14) and a follower cam (15) abutting against the linkage block (14); the follower cam (15) is installed in a central rotating disk (16), and an adjusting knob (17) is installed outside the central rotating disk (16); when the adjusting knob (17) is turned, the central rotating disk (16) drives the follower cam (15) to rotate, and the contact point between the follower cam (15) and the linkage block (14) changes, thereby changing the height of the linkage block (14) and the mirror carrier (8).

8. The laser collimating lens assembly according to claim 7, characterized in that: The first lens cabinet (20), the second lens cabinet (21) and the third lens cabinet (22) are connected to the lens barrel (1) by bolts; when the lens box (5) is installed in lens cabinets (4) at different heights, the laser passes through the collimating lens (6) to obtain straight laser beams of different widths.

9. The laser collimating lens assembly according to claim 7, characterized in that: A rotating scale plate (18) is arranged between the lens cabinet (4) and the installation and adjustment portion (7), and a scale indicating line (19) is arranged on the central rotating disk (16).

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