A light guide device for a laser processing machine

Abstract

This utility model relates to the field of laser processing machine technology and discloses a light guiding device for a laser processing machine, including a base plate, a light guiding mechanism on the top of the base plate, a connecting component below the light guiding mechanism, a dustproof component on the front side of the light guiding mechanism, and a field lens below the connecting component. The connecting component includes a mounting cavity inside the light guiding mechanism, a light guide tube fixedly connected inside the mounting cavity, a telescopic spring sleeved on the surface of the light guide tube, a limit plate fixedly connected to one end of the telescopic spring, a mounting sleeve abutting against the side wall of the limit plate, and an annular groove formed on the side wall of the mounting sleeve. In this utility model, the structural design of the connecting component solves the problem in the prior art where the field lens relies on a bolt flange mounting structure for connection with the light guiding mechanism, requiring the removal and installation of numerous bolts, which is time-consuming and labor-intensive, hindering efficient field lens installation and removal, and affecting work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of laser processing machine technology, and in particular to a light guiding device for a laser processing machine. Background Technology

[0002] With the deepening application of laser processing technology in precision manufacturing, micro-nano processing, and flexible material processing, stringent requirements have been placed on the stability, controllability, and adaptability of laser beam transmission. In order to meet the needs of precise guidance and flexible adjustment of laser energy in complex processing scenarios, and to ensure that the laser beam maintains energy density and beam quality to the maximum extent during transmission, the light guiding device of laser processing machine has emerged.

[0003] The existing laser processing machine's light guiding device is based on the principle of geometric optics. Through a precisely designed combination of reflector group, beam expander and lens, a precise optical path transmission system is constructed. The high-energy beam generated by the laser is optimized for divergence angle by the beam expander, and then multi-dimensional spatial control is achieved by the reflector. With the help of the field lens, the beam is focused on a specified position on the workpiece surface.

[0004] However, the field lens in the existing laser processing machine's light guide device relies on a bolt flange mounting structure for connection with the light guide mechanism. This requires disassembling and assembling a large number of bolts, which is time-consuming and labor-intensive, hindering efficient disassembly and assembly of the field lens and affecting work efficiency. Therefore, a new light guide device for laser processing machines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a light guiding device for a laser processing machine, aiming to improve the existing technology where the field mirror relies on a bolt flange mounting structure for connection with the light guiding mechanism. This structure requires the removal and installation of a large number of bolts, which is time-consuming and labor-intensive, hindering efficient field mirror assembly and disassembly and affecting work efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a light guiding device for a laser processing machine, comprising a base plate, a light guiding mechanism disposed on the top of the base plate, a connecting component disposed below the light guiding mechanism, a dustproof component disposed on the front side of the light guiding mechanism, a field lens disposed below the connecting component, the connecting component comprising an installation cavity disposed inside the light guiding mechanism, a light guide tube fixedly connected inside the installation cavity, a telescopic spring sleeved on the surface of the light guide tube, a limiting plate fixedly connected to one end of the telescopic spring, an installation sleeve abutting against the side wall of the limiting plate, an annular groove formed on the side wall of the installation sleeve, a slot formed on the opposite side wall of the installation sleeve, a connecting ring abutting against the bottom of the installation cavity, and two locking blocks fixedly connected to the top of the connecting ring;

[0007] As a further description of the above technical solution:

[0008] The dustproof component includes an installation cylinder located below the light guide mechanism. A rotating rod is rotatably connected between the installation cylinder and its inner wall. A spring is fixedly connected to the side wall of the rotating rod. A dustproof cloth is fixedly connected to the surface of the rotating rod. A connecting strip is fixedly connected to one end of the dustproof cloth. A cloth outlet groove is opened at the bottom of the installation cylinder. A limit strip is provided at the bottom of the light guide mechanism.

[0009] As a further description of the above technical solution:

[0010] The limiting plate is slidably connected to the side wall of the light guide tube, and the mounting sleeve is fixedly connected to the side wall of the light guide tube;

[0011] As a further description of the above technical solution:

[0012] The field lens abuts against one end of the light guide tube, and the field lens is fixedly connected inside the connecting ring;

[0013] As a further description of the above technical solution:

[0014] The card block has an L-shaped structure, and the card slot and the annular groove are interconnected.

[0015] As a further description of the above technical solution:

[0016] The locking block is slidably connected to the surface of the mounting sleeve, and the locking block abuts against the bottom side wall of the limiting plate;

[0017] As a further description of the above technical solution:

[0018] One end of the spring is fixedly connected to the inner wall of the mounting cylinder, the connecting strip abuts against the inside of the fabric outlet groove, and the dustproof cloth is slidably connected to the inside of the fabric outlet groove.

[0019] As a further description of the above technical solution:

[0020] The connecting strip and the limiting strip are interlocked and magnetically attracted to each other.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the structural design of the connecting components, during installation, the L-shaped locking block and the annular groove and locking slot are adapted to slide, combined with the elastic limit of the telescopic spring, to quickly and accurately connect the field lens and the light guide mechanism. During operation, the mechanical interlocking of the locking block, the limiting plate and the mounting sleeve, together with the positioning support of the light guide tube, ensures that the field lens is stable in the optical path transmission, effectively guaranteeing the coaxiality and stability of the laser light guide. This simplifies the field lens disassembly and assembly process, improves maintenance efficiency, and enhances the overall reliability of the light guide system. It solves the problem in the existing technology where the field lens relies on a bolt flange installation structure to connect with the light guide mechanism, requiring the removal and installation of a large number of bolts, which is time-consuming and labor-intensive, hindering efficient disassembly and assembly of the field lens and affecting work efficiency.

[0023] 2. In this utility model, through the structural design of the dustproof component, the spring provides the power for the dustproof cloth to be extended and retracted. When the equipment is not in use, the connecting strip and the limiting strip magnetically engage, pulling the dustproof cloth out of the cloth outlet groove to quickly cover the field lens area and block dust and debris. When the equipment is in use, the magnetic attraction is disengaged, the spring drives the rotating rod to rotate, and automatically retracts the dustproof cloth to the mounting cylinder. This simplifies manual protection operations and ensures smooth extension and retraction of the dustproof cloth through mechanical linkage, effectively improving the field lens cleaning and protection function and enhancing the practicality of the light guide device of the laser processing machine. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a light guide device for a laser processing machine according to the present invention.

[0025] Figure 2 This is a schematic diagram of the connection assembly of a light guide device for a laser processing machine according to the present invention.

[0026] Figure 3 This is a schematic diagram of the dustproof component of the light guide device for a laser processing machine proposed in this utility model.

[0027] Legend:

[0028] 1. Base plate; 2. Light guide mechanism; 3. Connecting assembly; 4. Dustproof assembly; 5. Field lens; 31. Mounting cavity; 32. Light guide tube; 33. Telescopic spring; 34. Limiting plate; 35. Mounting sleeve; 36. Annular groove; 37. Slot; 38. Connecting ring; 39. Locking block; 41. Mounting cylinder; 42. Rotating rod; 43. Spring spring; 44. Dustproof cloth; 45. Connecting strip; 46. Cloth outlet groove; 47. Limiting strip. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-2 This utility model provides an embodiment of a light guiding device for a laser processing machine, including a base plate 1, a light guiding mechanism 2 disposed on the top of the base plate 1, a connecting component 3 disposed below the light guiding mechanism 2, the connecting component 3 facilitating the assembly and disassembly of a field lens 5 from the light guiding mechanism 2, a dustproof component 4 disposed on the front side of the light guiding mechanism 2, the dustproof component 4 providing dust protection for the field lens 5 when not in use, the field lens 5 disposed below the connecting component 3, focusing the incident laser beam onto the surface of the sample to form a light spot that meets the processing requirements, and the connecting component 3 including a mounting cavity 31 disposed inside the light guiding mechanism 2. A light guide tube 32 is fixedly connected inside the cavity 31, providing guidance for pipeline transmission. A telescopic spring 33 is sleeved on the surface of the light guide tube 32, and a limit plate 34 is fixedly connected to one end of the telescopic spring 33. The telescopic spring 33 provides elastic support for the limit plate 34, and can drive the limit plate 34 to reset after it moves. An installation sleeve 35 abuts against the side wall of the limit plate 34. The limit plate 34 and the installation sleeve 35 can limit the locking block 39. An annular groove 36 is opened on the side wall of the installation sleeve 35, and a locking groove 37 is opened on the opposite side wall of the installation sleeve 35. The annular groove 36 and the locking groove 37 are connected. Seven pairs of locking blocks 39 provide connection and movement space. A connecting ring 38 abuts against the bottom of the mounting cavity 31. Two locking blocks 39 are fixedly connected to the top of the connecting ring 38. The connecting ring 38 can drive the locking blocks 39 to connect and disassemble synchronously. A limiting plate 34 is slidably connected to the side wall of the light guide tube 32. The locking blocks 39 press against the limiting plate 34, causing the limiting plate 34 to slide on the surface of the light guide tube 32, providing a guide for the movement of the limiting plate 34. A mounting sleeve 35 is fixedly connected to the side wall of the light guide tube 32. The mounting sleeve 35 provides stable support for the connection between the mounting sleeve 35 and the locking blocks 39. The field lens 5 abuts against the light guide tube 32. At one end, the field lens 5 and the light guide tube 32 abut to complete the connection of the field lens 5. The field lens 5 is fixedly connected inside the connecting ring 38. The field lens 5 is installed through the connection between the connecting ring 38 and the mounting cavity 31. The locking block 39 has an L-shaped structure. The locking groove 37 and the annular groove 36 are interconnected to adapt to the L-shape of the locking block 39. The locking block 39 is slidably connected to the surface of the mounting sleeve 35. The locking block 39 abuts against the bottom side wall of the limiting plate 34. The telescopic spring 33 uses its own elasticity to drive the limiting plate 34 to abut against the locking block 39, and cooperates with the mounting sleeve 35 to limit and fix the locking block 39.

[0031] Reference Figures 1-3 The dustproof component 4 includes a mounting cylinder 41 located below the light guide mechanism 2. A rotating rod 42 is rotatably connected between the mounting cylinder 41 and its inner wall, providing stable rotational support for the rotating rod 42. A spring-loaded spring 43 is fixedly connected to the side wall of the rotating rod 42, storing elastic potential energy to drive the rotating rod 42 to rotate. A dustproof cloth 44 is fixedly connected to the surface of the rotating rod 42, providing dust protection for the field lens 5. A connecting strip 45 is fixedly connected to one end of the dustproof cloth 44. A cloth outlet groove 46 is provided at the bottom of the mounting cylinder 41, providing guidance and space for the dustproof cloth 44 to exit. A limit strip 47 is provided at the bottom of the light guide mechanism 2. The limiting strip 47 provides dust protection for the connecting strip 45. One end of the spring 43 is fixedly connected to the inner wall of the mounting cylinder 41. The spring 43 connects the rotating rod 42 to the mounting cylinder 41, so that the rotating rod 42 can automatically return to its original position after rotation. The connecting strip 45 abuts against the inside of the fabric outlet groove 46, making it convenient to pull the connecting strip 45 to drive the dustproof cloth 44 to exit. The dustproof cloth 44 is slidably connected inside the fabric outlet groove 46. The connecting strip 45 and the limiting strip 47 are magnetically attracted to each other. Through the snapping of the connecting strip 45 and the limiting strip 47, the elasticity of the spring 43 is overcome, so that the dustproof cloth 44 stably protects the field mirror 5 from dust.

[0032] Working principle: In use, align the connecting ring 38 with the mounting cavity 31 inside the light guide mechanism 2. The L-shaped locking block 39 on the top of the connecting ring 38 slides along the surface of the mounting sleeve 35 and is guided into the annular groove 36 along the locking groove 37. At this time, the locking block 39 contacts the limiting plate 34 and pushes the limiting plate 34 into the mounting cavity 31, compressing the telescopic spring 33. Rotate the connecting ring 38 to make the locking block 39 disengage from the annular groove 36 and enter the annular groove 36. The telescopic spring 33 uses its own elasticity to drive the limiting plate 34 to abut against the locking block 39, which, together with the mounting sleeve 35, limits and fixes the locking block 39. The field lens 5 is then assembled with the light guide tube 32 through the connecting ring 38. When it is necessary to disassemble the field lens 5 for maintenance or replacement, rotate the connecting ring 38 to make the locking block 39 move from the annular groove 36 into the annular groove 36. The slot 36 is inserted into the slot 37, causing the card block 39 to disengage from the limiting plate 34 and the limiting plate 34. The connecting ring 38 and the field lens 5 can then be removed, completing the disassembly. When dust prevention is required, the connecting strip 45 is manually pulled. The connecting strip 45 drives the dustproof cloth 44 to be pulled out from the cloth outlet slot 46. The dustproof cloth 44 pulls the rotating rod 42 to rotate, and the spring spring 43 is stretched and stored energy. The connecting strip 45 and the limiting strip 47 at the bottom of the light guide mechanism 2 are magnetically attached, and the dustproof cloth 44 unfolds to cover the area of ​​the field lens 5, blocking dust. When the equipment is ready to run and the dustproof cloth 44 needs to be removed, the magnetic attraction between the connecting strip 45 and the limiting strip 47 is released, the spring spring 43 releases its stored energy, drives the rotating rod 42 to rotate, and rewinds the dustproof cloth 44 back to the surface of the rotating rod 42. The field lens 5 is exposed, and the optical path transmission function is restored.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A light guide for a laser machining machine comprising a base plate (1) characterised in that: A light guide mechanism (2) is provided on the top of the base plate (1), a connecting component (3) is provided below the light guide mechanism (2), a dustproof component (4) is provided on the front side of the light guide mechanism (2), and a field lens (5) is provided below the connecting component (3); The connecting assembly (3) includes an installation cavity (31) disposed inside the light guide mechanism (2). A light guide tube (32) is fixedly connected inside the installation cavity (31). A telescopic spring (33) is sleeved on the surface of the light guide tube (32). A limiting plate (34) is fixedly connected to one end of the telescopic spring (33). An installation sleeve (35) abuts against the side wall of the limiting plate (34). An annular groove (36) is opened on the side wall of the installation sleeve (35). A slot (37) is opened on the opposite side wall of the installation sleeve (35). A connecting ring (38) abuts against the bottom of the installation cavity (31). Two locking blocks (39) are fixedly connected to the top of the connecting ring (38).

2. A light guide for a laser machining apparatus as claimed in claim 1, wherein: The dustproof component (4) includes an installation cylinder (41) located below the light guide mechanism (2). A rotating rod (42) is rotatably connected between the installation cylinder (41) and its inner wall. A spring spring (43) is fixedly connected to the side wall of the rotating rod (42). A dustproof cloth (44) is fixedly connected to the surface of the rotating rod (42). A connecting strip (45) is fixedly connected to one end of the dustproof cloth (44). A cloth outlet groove (46) is opened at the bottom of the installation cylinder (41). A limit strip (47) is provided at the bottom of the light guide mechanism (2).

3. The light guide of a laser processing machine according to claim 1, wherein: The limiting plate (34) is slidably connected to the side wall of the light guide tube (32), and the mounting sleeve (35) is fixedly connected to the side wall of the light guide tube (32).

4. The light guide of a laser processing machine according to claim 1, wherein: The field lens (5) abuts against one end of the light guide tube (32), and the field lens (5) is fixedly connected inside the connecting ring (38).

5. The light guide of a laser processing machine according to claim 1, wherein: The card block (39) has an L-shaped structure, and the card slot (37) is connected to the annular groove (36).

6. The light guiding device for a laser processing machine according to claim 1, characterized in that: The locking block (39) is slidably connected to the surface of the mounting sleeve (35), and the locking block (39) abuts against the bottom side wall of the limiting plate (34).

7. The light guide of a laser processing machine according to claim 2, wherein: One end of the spring (43) is fixedly connected to the inner wall of the mounting cylinder (41), the connecting strip (45) abuts against the inside of the fabric outlet groove (46), and the dustproof cloth (44) is slidably connected to the inside of the fabric outlet groove (46).

8. The light guide of a laser processing machine according to claim 2, wherein: The connecting strip (45) and the limiting strip (47) are engaged with each other, and the connecting strip (45) and the limiting strip (47) are magnetically attracted to each other.

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