Flight path structure of carbon dioxide laser device

Abstract

The utility model provides a flying light path structure of carbon dioxide laser equipment, which comprises a base, a rotatable third reflecting mirror assembly, a detachable dimming positioning sheet and a movable lens assembly, and the dimming positioning sheet is provided with a reflecting surface and is concentrically arranged with a lens of the lens assembly. Through the synergistic effect of the third reflector assembly, the lens assembly and the dimming positioning sheet, the path of the light path can be conveniently adjusted. During adjustment, if the included angle between the incident light and the third reflector is not 45 degrees, the reflected light does not vertically irradiate on the dimming positioning sheet, and two light spots are formed on the reflecting surface of the dimming positioning sheet, which indicates that the light is not vertical to the lens. At the moment, by rotating the third reflector assembly, the two light spots gradually coincide, that is, the reflected light is perpendicular to the lens. And finally, finely adjusting the position of the lens assembly to ensure that the reflected light accurately passes through the center of the lens. The dimming process is simple and convenient, the requirement for the technical level of an operator is lowered, the machining precision is improved, spot laser is not needed in the whole process, and the safety of the operator is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide lasers, in particular to a flying optical path structure of carbon dioxide laser equipment. Background Art

[0002] Existing 10600nm wavelength CO2 laser engraving machines generally use a three-mirror, one-transmission optical path structure. This means that the laser beam is reflected three times by the third mirror and transmitted once by the lens during transmission, ultimately focusing on the work surface. This structure requires the laser to be perpendicular to the lens at the light output and emitted from the center of the lens to ensure a vertical edge on the cut material.

[0003] The applicant has discovered that the prior art has at least the following technical problems:

[0004] 1. The traditional flying optical path structure is difficult to adjust. The adjustment process requires precise control of the angle and position of the three third reflectors. The operation is cumbersome and requires a high level of professional skills from the operator. Especially for the third reflector, any slight deviation will cause the laser beam to be unable to accurately enter the center of the lens, thereby affecting the processing accuracy.

[0005] 2. During the dimming process, it is dangerous to conduct point-to-point laser shooting and observe the direction of the light. If the laser beam accidentally shines on the human body, it may cause a serious safety accident.

[0006] In view of this, the present utility model is proposed. Utility Model Content

[0007] This utility model aims to provide a flying optical path structure for CO2 laser equipment to address the technical issues of conventional flying optical path structures, such as the difficulty in dimming, particularly the cumbersome operation of adjusting the angle and position of the third reflector, which requires high operator expertise. Even slight deviations can prevent the laser beam from accurately entering the center of the lens, thereby affecting machining accuracy. The various technical advantages of the preferred technical solution among the various technical solutions provided by this utility model are detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] The utility model provides a flying optical path structure of a carbon dioxide laser device, comprising a base, a third reflector assembly, a dimming positioning plate and a lens assembly. The third reflector assembly is rotatably arranged on the base, the lens assembly is movably arranged on the base, the dimming positioning plate is detachably arranged on the lens assembly, has a reflecting surface, and is concentrically arranged with the lens of the lens assembly.

[0010] Preferably, the reflective surface is a mirror surface for reflecting light, and an indicator mark is provided at the center thereof.

[0011] Preferably, the base includes a Z-axis bracket and a third reflector mounting bracket, the Z-axis bracket is connected to the slide module of the flying optical path structure for installing the lens assembly; the third reflector mounting bracket is slidably matched with the Z-axis bracket for installing the third reflector assembly.

[0012] Preferably, at least one first mounting hole is provided on the third reflector mounting bracket, the third reflector assembly includes a third reflector adjustment frame and a third reflector, and a connecting hole is provided on the third reflector adjustment frame. The connecting holes are arranged in a one-to-one correspondence with the first mounting holes and are connected by bolts, and one of the connecting holes is a waist-shaped hole.

[0013] Preferably, a second mounting hole is provided on the lens fixing plate of the Z-axis bracket, and the lens assembly also includes a hollow lens frame, a lens frame fixing nut and a lens fixing nut, the connecting portion of the lens frame passes through the second mounting hole and is threadedly engaged with the lens frame fixing nut; the lens frame fixing nut is threadedly engaged with the connecting portion, and the lens is clamped between the connecting portion and the lens fixing nut; a first mounting groove is provided on the upper end of the lens fixing nut for installing the dimming positioning plate.

[0014] Preferably, the lens fixing nut is provided with a first external thread section, the lens frame fixing nut is provided with a first internal thread section, and the outer wall surface and inner wall surface of the connecting part are respectively provided with a second external thread section and a second internal thread section, the second external thread section is threadedly matched with the first internal thread section, and the first external thread section is threadedly matched with the second internal thread section.

[0015] Preferably, a first clamping ring is provided on the lens holder fixing nut, and a second clamping ring is provided on the lens holder, and a clamping space is formed between the first clamping ring and the second clamping ring for clamping the lens fixing plate.

[0016] Preferably, an adjustment groove is provided on the lens holder, and the adjustment groove is located between the connecting portion and the second clamping ring and is movable in the second mounting hole.

[0017] Preferably, a second mounting groove is provided on the connecting portion for mounting the lens.

[0018] The preferred technical solution of the utility model can also produce at least the following technical effects:

[0019] The present invention effectively avoids the technical problems of conventional flying optical path structures in the prior art, such as the difficulty in dimming, particularly the cumbersome operation of adjusting the angle and position of the third reflector, which requires a high level of professional expertise from the operator. Even slight deviations can cause the laser beam to be unable to accurately focus on the center of the lens, thereby affecting processing accuracy. The present invention provides a flying optical path structure for a carbon dioxide laser device, comprising a base, a third reflector assembly, a dimming positioning plate, and a lens assembly. The third reflector assembly is rotatably mounted on the base, the lens assembly is movably mounted on the base, and the dimming positioning plate is detachably mounted on the lens assembly, has a reflective surface, and is concentrically mounted with the lens of the lens assembly. The coordinated action of the third reflector assembly, the lens assembly, and the dimming positioning plate facilitates adjustment of the optical path. Because the third reflector assembly is rotatably mounted on the base, the angle of the third reflector of the third reflector assembly can be adjusted. The dimming positioning plate is used to assist in determining whether the optical path is perpendicular to the lens during adjustment.

[0020] When the angle between the incident light and the third reflector is not 45°, the light cannot be reflected perpendicularly on the reflective surface of the dimming positioning plate after being reflected by the third reflector, but forms an angle with the normal. Therefore, there is light reflection. At this time, two light spots will appear on the third reflector, one for the incident light spot and the other for the reflected light spot, indicating that the reflected light is not perpendicular to the lens and needs to be adjusted. At this time, by rotating the third reflector assembly and adjusting the angle of the third reflector, the two light spots on the dimming positioning plate gradually overlap. When the two light spots completely overlap, it indicates that the reflected light has been adjusted to be perpendicular to the lens. Further fine-tune the position of the lens assembly to ensure that the reflected light passes through the center of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of the flight optical path structure of a carbon dioxide laser device provided by the utility model;

[0023] Figure 2 This is a structural schematic diagram of a flight optical path structure of a carbon dioxide laser device provided by the present invention from another perspective;

[0024] Figure 3The utility model is a structural schematic diagram of a flight optical path structure of a carbon dioxide laser device in a decomposed state.

[0025] In the picture:

[0026] 1. Third reflector mounting bracket; 101. Dovetail groove; 102. Limiting groove; 103. First mounting hole; 2. Third reflector adjustment bracket; 201. Waist-shaped hole; 3. Third reflector; 4. Z-axis bracket; 401. Lens fixing plate; 4011. Second mounting hole; 402. Dovetail groove seat; 5. Lens fixing nut; 501. First external thread section; 502. First mounting groove; 6. Lens holder fixing nut; 601. First clamping ring; 602. First internal thread section; 7. Lens holder; 701. Second clamping ring; 702. Adjusting groove; 703. Second external thread section; 704. Second internal thread section; 705. Second mounting groove; 8. Lens; 9. Dimming positioning piece. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1-Figure 3 As shown, the utility model provides a flight optical path structure of a carbon dioxide laser device, including a base, a third reflector assembly, a dimming positioning piece 9 and a lens assembly. The third reflector assembly is rotatably arranged on the base, the lens assembly is movably arranged on the base, the dimming positioning piece 9 is detachably arranged on the lens assembly, has a reflecting surface, and is concentrically arranged with the lens 8 of the lens assembly.

[0029] The coordinated action of the third reflector assembly, lens assembly, and dimming positioning plate 9 facilitates adjustment of the optical path. Because the third reflector assembly is rotatably mounted on the base, the angle of the third reflector 3 of the third reflector assembly can be adjusted. The dimming positioning plate 9 assists in determining whether the optical path is perpendicular to the lens 8 during adjustment.

[0030] During the dimming process, the utility model does not need to shoot laser, but uses conventional red light to simulate the light path.

[0031] When the angle between the incident light and the third reflector 3 is not 45°, after being reflected by the third reflector 3, it cannot be projected vertically onto the reflective surface of the dimming positioning plate 9, but forms an angle with the normal. Therefore, there is light reflection. At this time, two light spots will appear on the dimming positioning plate 9, one of which is the incident light spot and the other is the reflected light spot, indicating that the reflected light is not perpendicular to the lens 8 and needs to be adjusted. At this time, by rotating the third reflector assembly and adjusting the angle of the third reflector 3, the two light spots on the dimming positioning plate 9 gradually overlap. When the two light spots completely overlap, it indicates that the reflected light has been adjusted to be perpendicular to the lens 8. Further fine-tune the position of the lens assembly to ensure that the reflected light passes through the center of the lens 8, so as to improve processing accuracy, greatly reduce operational risks, and ensure good safety.

[0032] As an optional embodiment, Figure 1 、 Figure 3 As shown, the reflective surface of the dimming positioning plate 9 is a mirror surface for reflecting light, and an indicator mark is provided at its center.

[0033] The reflective surface adopts a mirror design, which can clearly reflect light and form a light spot on it, providing operators with an intuitive observation of the light path.

[0034] The function of the indicator mark is to provide a precise reference point to assist in adjusting the position of the lens 8 so that the light can pass through the center of the lens 8 accurately.

[0035] As an optional embodiment, Figure 1 、 Figure 2 、 Figure 3 As shown, the base includes a third reflector mounting bracket 1 and a Z-axis bracket 4. The Z-axis bracket 4 is connected to the slide module of the flying optical path structure for installing the lens assembly; the third reflector mounting bracket 1 is slidably matched with the Z-axis bracket 4 for installing the third reflector assembly.

[0036] Furthermore, the Z-axis bracket 4 is provided with a dovetail groove seat 402, and the third reflector mounting bracket 1 is provided with a dovetail groove 101 that matches the dovetail groove seat 402. The third reflector mounting bracket 1 is provided with a limit groove 102, which extends in the vertical direction to limit the travel range of the third reflector mounting bracket 1. The Z-axis bracket 4 is connected to the slider of the slide module through the limit groove 102, and the dovetail groove 101 slides with the dovetail groove seat 402, so that the Z-axis bracket 4 can adjust the vertical position of the lens assembly. After adjustment is completed, the third reflector mounting bracket 1 is locked to the Z-axis bracket 4 with bolts.

[0037] As an optional embodiment, Figure 3As shown, at least one first mounting hole 103 is provided on the third reflector mounting bracket 1, and the third reflector assembly includes a third reflector adjustment frame 2 and a third reflector 3. The third reflector adjustment frame 2 is provided with connecting holes, which are arranged in a one-to-one correspondence with the first mounting holes 103 and are connected by bolts, and one of the connecting holes is a waist-shaped hole 201.

[0038] Furthermore, the third reflector mounting bracket 1 is provided with two first mounting holes 103, with the connecting holes corresponding one to the first mounting holes 103. The first mounting holes 103 and one connecting hole are circular holes, while the other connecting hole is a waist-shaped hole 201, with the center of the arc of each connecting hole coinciding with the center of the corresponding first mounting hole 103. This allows the reflector adjustment bracket to drive the third reflector 3 to rotate about the first mounting hole 103 to adjust the angle of the third reflector 3 and further optimize the light path.

[0039] When the angle of the third reflector 3 needs to be adjusted, the bolts connected to the waist-shaped hole 201 can be loosened. Then, the angle of the third reflector 3 can be adjusted by rotating the reflector adjustment frame. After the adjustment is completed, the third reflector adjustment frame 2 is locked to the third reflector mounting bracket 1 by tightening the bolts.

[0040] As an optional embodiment, Figure 3 As shown, a second mounting hole 4011 is provided on the lens fixing plate 401 of the Z-axis bracket 4, and the lens assembly also includes a hollow lens frame 7, a lens frame fixing nut 6 and a lens fixing nut 5. The connecting portion of the lens frame 7 passes through the second mounting hole 4011 and is threadedly engaged with the lens frame fixing nut 6; the lens frame fixing nut 6 is threadedly engaged with the connecting portion, and the lens 8 is clamped between the connecting portion and the lens fixing nut 5; a first mounting groove 502 is provided on the upper end of the lens fixing nut 5 for installing the dimming positioning plate 9.

[0041] As an optional embodiment, Figure 3 As shown, the lens fixing nut 5 is provided with a first external thread segment 501, the lens frame fixing nut 6 is provided with a first internal thread segment 602, and the outer wall surface and the inner wall surface of the connecting portion are respectively provided with a second external thread segment 703 and a second internal thread segment 704, the second external thread segment 703 is threadedly matched with the first internal thread segment 602, and the first external thread segment 501 is threadedly matched with the second internal thread segment 704.

[0042] After the connecting portion of the lens frame 7 passes through the second mounting hole 4011, the first internal thread section 602 of the lens frame fixing nut 6 is threadedly engaged with the second external thread section 703 of the connecting portion to achieve preliminary fixation of the lens frame 7. Then, the lens 8 is placed in the connecting portion of the lens frame 7, and the first external thread section 501 of the lens fixing nut 5 is threadedly engaged with the second internal thread section 704 of the connecting portion. As the lens fixing nut 5 is tightened, the lens 8 is firmly clamped between the connecting portion and the lens fixing nut 5. Finally, the dimming positioning plate 9 is installed in the first mounting groove 502 to assist in adjusting the angle of the third reflector 3 and the position of the lens 8 to ensure that the light can accurately pass through the center of the lens 8. After the adjustment is completed, tighten the lens frame fixing nut 6 to stabilize the position of the lens assembly on the Z-axis bracket 4.

[0043] As an optional embodiment, Figure 1 、 Figure 2 、 Figure 3 As shown, a first clamping ring 601 is provided on the lens frame fixing nut 6, and a second clamping ring 701 is provided on the lens frame 7. A clamping space is formed between the first clamping ring 601 and the second clamping ring 701 for clamping the lens fixing plate 401, thereby ensuring the stability and reliability of the connection between the lens assembly and the Z-axis bracket 4.

[0044] As an optional embodiment, Figure 3 As shown, an adjustment groove 702 is provided on the lens holder 7 . The adjustment groove 702 is located between the connecting portion and the second clamping ring 701 and is movable in the second mounting hole 4011 .

[0045] Furthermore, the outer diameter of the adjustment groove 702 is smaller than the inner diameter of the second mounting hole 4011, so that the lens holder 7 can drive the lens 8 to move freely in the second mounting hole 4011, and perform fine adjustment so that the light can accurately pass through the center of the lens 8.

[0046] The outer diameters of the first clamping ring 601 and the second clamping ring 701 are both larger than the inner diameter of the second mounting hole 4011. This arrangement allows the lens frame 7 to be fine-tuned in the second mounting hole 4011. At the same time, the first clamping ring 601 and the second clamping ring 701 can firmly clamp the lens fixing plate 401 of the Z-axis bracket 4, ensuring the stability and reliability of the connection between the lens assembly and the Z-axis bracket 4.

[0047] As an optional embodiment, Figure 3 As shown, a second mounting groove 705 is provided on the connecting portion, and the second mounting groove 705 is used for mounting the lens 8.

[0048] Furthermore, the second mounting groove 705 is located below the second internal thread section 704 to support and accommodate the lens 8 .

[0049] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0050] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model depending on the specific circumstances.

[0052] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "an example" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0053] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A flight optical path structure of a carbon dioxide laser device, characterized in that: It includes a base, a third reflector assembly, a dimming positioning plate and a lens assembly. The third reflector assembly is rotatably arranged on the base, the lens assembly is movably arranged on the base, the dimming positioning plate is detachably arranged on the lens assembly, has a reflecting surface, and is concentrically arranged with the lens of the lens assembly.

2. The flying optical path structure of a carbon dioxide laser device according to claim 1, characterized in that: The reflecting surface is a mirror surface for reflecting light, and an indicator mark is provided at the center thereof.

3. The flying optical path structure of a carbon dioxide laser device according to claim 1, characterized in that: The base includes a Z-axis bracket and a third reflector mounting bracket. The Z-axis bracket is connected to the slide module of the flying optical path structure and is used to install the lens assembly; the third reflector mounting bracket is slidably matched with the Z-axis bracket and is used to install the third reflector assembly.

4. The flying optical path structure of a carbon dioxide laser device according to claim 3, characterized in that: At least one first mounting hole is provided on the third reflector mounting bracket, the third reflector assembly includes a third reflector adjustment frame and a third reflector, and a connecting hole is provided on the third reflector adjustment frame. The connecting holes are arranged in a one-to-one correspondence with the first mounting holes and are connected by bolts, and one of the connecting holes is a waist-shaped hole.

5. The flying optical path structure of a carbon dioxide laser device according to claim 3, characterized in that: A second mounting hole is provided on the lens fixing plate of the Z-axis bracket, and the lens assembly also includes a hollow lens frame, a lens frame fixing nut and a lens fixing nut. The connecting portion of the lens frame passes through the second mounting hole and is threadedly engaged with the lens frame fixing nut; the lens frame fixing nut is threadedly engaged with the connecting portion, and the lens is clamped between the connecting portion and the lens fixing nut; a first mounting groove is provided on the upper end of the lens fixing nut for installing the dimming positioning plate.

6. The flying optical path structure of a carbon dioxide laser device according to claim 5, characterized in that: The lens fixing nut is provided with a first external thread section, the lens frame fixing nut is provided with a first internal thread section, the outer wall surface and the inner wall surface of the connecting portion are respectively provided with a second external thread section and a second internal thread section, the second external thread section is threadedly matched with the first internal thread section, and the first external thread section is threadedly matched with the second internal thread section.

7. The flying optical path structure of a carbon dioxide laser device according to claim 6, characterized in that: A first clamping ring is provided on the lens holder fixing nut, and a second clamping ring is provided on the lens holder. A clamping space is formed between the first clamping ring and the second clamping ring for clamping the lens fixing plate.

8. The flying optical path structure of a carbon dioxide laser device according to claim 7, characterized in that: The lens holder is provided with an adjusting groove, which is located between the connecting portion and the second clamping ring and can move in the second mounting hole.

9. The flying optical path structure of a carbon dioxide laser device according to claim 5, characterized in that: The connecting portion is provided with a second mounting groove for mounting the lens.

Images