Adjustable carbon dioxide laser metal head

Abstract

The utility model discloses an adjustable carbon dioxide laser metal head, which comprises a gas storage tube, a metal head adhered to the positive electrode end of the gas storage tube, a reflecting mirror adhered to the back surface of the metal head, a positive electrode metal cap mounted on the outer side of the reflecting mirror, an adjustable metal head adhered to the negative electrode end of the reflecting mirror, and four adjusting bolts uniformly distributed on the outer diameter of the adjustable metal head, an output lens is pasted on the back face of the adjustable metal head, the adjusting bolt is used for finely adjusting the angle of the adjustable metal head and changing the position of the output lens so as to change a laser light path and adjust the light spot shape, and a negative electrode metal cap is installed on the outer side of the output lens. The adjustable metal head is installed at the negative electrode end of the laser, and forces in four directions are generated on the adjustable metal head by screwing or unscrewing four adjusting bolts located in the circumferential direction of the outer diameter of the adjustable metal head, so that the adjustable metal head is slightly deformed, the position of an output lens is adjusted, a laser light path is changed, and the shape of a light spot is adjusted. And enabling the carbon dioxide laser to output a base film or a low-order film.

Description

Technical Field

[0001] This utility model relates to an adjustable metal head, and more particularly to an adjustable metal head for a carbon dioxide laser. Background Technology

[0002] A typical sealed-off CO2 glass tube laser consists of a gas storage tube, a water-cooling tube, a discharge tube, a return gas tube, a resonant cavity mirror, and electrodes. Currently manufactured CO2 lasers have one end of the negative electrode metal head bonded to the gas storage tube, and the other end bonded to the output mirror, making the bonding process quite difficult. Vibrations during transportation can easily cause slight misalignment of the metal head, leading to mirror displacement and thus a deviation in the laser beam path. Simultaneously, the laser generates heat during operation, causing deformation of the gas storage tube and resulting in a distortion of the laser beam pattern. All these factors contribute to power attenuation and deterioration of the optical quality of the CO2 glass tube laser. Utility Model Content

[0003] This invention provides an adjustable metal head for a carbon dioxide laser to overcome the defect in the prior art where the metal head at the negative end of a carbon dioxide laser is prone to displacement, leading to deformation of the laser beam mode.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses an adjustable metal head for a carbon dioxide laser, including a gas storage tube. A metal head is bonded to the positive end of the gas storage tube, and a reflector is attached to the back of the metal head. A positive metal cap is installed on the outside of the reflector, and an adjustable metal head is bonded to its negative end. Four adjusting bolts are evenly distributed on the outer diameter of the adjustable metal head. An output lens is attached to the back of the adjustable metal head. The adjusting bolts are used to finely adjust the angle of the adjustable metal head, change the position of the output lens, thereby changing the laser beam path and adjusting the beam shape. A negative metal cap is installed on the outside of the output lens.

[0006] Furthermore, one end of the adjustable metal head is a sealing end, which is bonded to the negative end of the gas storage tube. The end face of the sealing end is provided with a groove, which is connected to the laser channel. An adjustment part is provided on the outside of the laser channel. Four threaded holes are evenly distributed along the circumference on the outer surface of the adjustment part. A ridge structure is machined in the middle of the bottom of the adjustment part. The end of the adjustment part away from the ridge structure is the output lens fixing end. An external thread is provided on the surface of the output lens fixing end, and an output lens is attached to its inner cavity. A negative electrode metal cap is installed on the outside of the output lens.

[0007] Furthermore, both the threaded hole and the adjusting bolt are provided with fine threads.

[0008] Furthermore, both the adjusting bolt and the threaded hole adopt a tapered structure that gradually increases in size from bottom to top.

[0009] Furthermore, the output lens is attached to the output lens groove located on the end face of the fixed end of the output lens.

[0010] Furthermore, the internal thread on the negative electrode metal cap is matched with the external thread.

[0011] Furthermore, the bottom wall thickness of the adjustment part is 0.3-0.4 mm, and the ridge structure is formed by cold pressing.

[0012] The beneficial effects achieved by this utility model are as follows: the adjustable metal head is installed at the negative end of the laser. By tightening or loosening the four adjusting bolts located in the circumferential direction of its outer diameter, forces are generated in four directions on the adjustable metal head, thereby causing a slight deformation of the adjustable metal head, adjusting the position of the output lens, changing the laser beam path, adjusting the beam shape, and enabling the carbon dioxide laser to output the base film or low-order mode. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the adjustable metal head of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the adjustable metal head of this utility model.

[0017] In the diagram: 1. Gas storage pipe; 2. Metal head; 3. Reflector; 4. Positive electrode metal cap; 5. Adjustable metal head; 5-1. Sealing end; 5-2. Groove; 5-3. Laser channel; 5-4. Adjustment part; 5-5. Threaded hole; 5-6. Ridge structure; 5-7. Output lens fixing end; 5-8. External thread; 5-9. Output lens groove; 6. Adjusting bolt; 7. Output lens; 8. Negative electrode metal cap. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example 1

[0020] like Figure 1-3As shown, an adjustable carbon dioxide laser metal head includes a gas storage tube 1, a metal head 2 bonded to the positive end of the gas storage tube 1, a reflector 3 bonded to the back of the metal head 2, a positive metal cap 4 mounted on the outside of the reflector 3, and an adjustable metal head 5 bonded to the negative end of the reflector 3. Four fine-toothed adjusting bolts 6 are evenly distributed on the outer diameter of the adjustable metal head 5, and an output lens 7 is bonded to the back of the adjustable metal head 5. The adjusting bolts 6 are used to finely adjust the angle of the adjustable metal head 5, change the position of the output lens 7, thereby changing the laser beam path and adjusting the beam shape. A negative metal cap 8 is mounted on the outside of the output lens 7.

[0021] One end of the adjustable metal head 5 is a sealing end 5-1, which is bonded to the negative end of the gas storage tube 1. The end face of the sealing end 5-1 is provided with a groove 5-2, which is connected to the laser channel 5-3. The outside of the laser channel 5-3 is an adjustment part 5-4. Four tapered threaded holes 5-5 are evenly arranged along the circumference on the adjustment part 5-4. A ridge structure 5-6 is machined in the middle of the bottom of the adjustment part 5-4. The end of the adjustment part 5-4 away from the ridge structure 5-6 is the output lens fixing end 5-7. The surface of the output lens fixing end 5-7 is provided with an external thread 5-8, and an output lens groove 5-9 is provided on the end face. The output lens 7 is pasted in the output lens groove 5-9. A negative electrode metal cap 8 is installed on the outside of the output lens 7. The internal thread on the negative electrode metal cap 8 is matched with the external thread 5-8.

[0022] Working principle: The adjustable metal head 5 has four adjusting bolts 6 evenly distributed in the circumferential direction of its outer diameter. By tightening or loosening the adjusting bolts 6, forces are generated in four directions on the adjustable metal head 5, which causes the adjustable metal head 5 to undergo a slight deformation. After the slight deformation occurs at the fixed end of the output lens 7, it drives the output lens 7 to deflect axially, changing the laser beam path, adjusting the beam shape, and enabling the carbon dioxide laser to output the base film or low-order mode.

[0023] Both the threaded hole 5-5 and the adjusting bolt 6 have fine threads. Due to their smaller thread pitch, they have better self-locking performance, making them less prone to loosening when the laser is vibrated during transportation, thus ensuring the stability of the laser. At the same time, the adjusting bolt 6 has a small thread helix angle, allowing for precise fine-tuning and positioning by rotating the adjusting bolt 6.

[0024] Both the adjusting bolt 6 and the threaded hole 5-5 adopt a tapered structure that gradually increases in size from bottom to top. As the adjusting bolt 6 is screwed in, the tapering causes the adjusting bolt 6 and the threaded hole 5-5 to gradually come into contact, and the contact area gradually increases, thereby enhancing the strength and reliability of their connection. Due to the tapering, the fitting clearance can be automatically adjusted as needed when the adjusting bolt 6 is screwed in, ensuring the tightness and stability of the connection during fine adjustments. The threaded hole 5-5 can effectively disperse the stress generated by vibration through its tapered structure, thereby improving the laser's vibration resistance.

[0025] The bottom wall thickness of the adjustment section 5-4 is 0.3-0.4mm. A ridge structure 5-6 is formed in the middle through cold pressing. The adjusting bolt 6 is screwed into the threaded hole 5-5, acting on the ridge structure 5-6. This reduces the force-bearing area, making the output lens fixing end 5-7 more prone to deformation, thus facilitating the adjustment of the output lens 7. Cold pressing also improves the tensile strength and elastic modulus of the adjustable metal head 5, making it less prone to cracking and extending the lifespan of the laser.

[0026] It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention. The terminology used in the description of this application is only for describing specific embodiments and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

Claims

1. An adjustable metal head for a carbon dioxide laser, characterized in that, The system includes a gas storage tube, with a metal head attached to the positive end of the gas storage tube. A reflector is attached to the back of the metal head, and a positive metal cap is installed on the outside of the reflector. An adjustable metal head is attached to the negative end of the reflector. Four adjusting bolts are evenly distributed on the outer diameter of the adjustable metal head. An output lens is attached to the back of the adjustable metal head. The adjusting bolts are used to fine-tune the angle of the adjustable metal head, change the position of the output lens, thereby changing the laser beam path and adjusting the beam shape. A negative metal cap is installed on the outside of the output lens.

2. The adjustable carbon dioxide laser metal head according to claim 1, characterized in that, One end of the adjustable metal head is a sealing end, which is bonded to the negative end of the gas storage tube. The end face of the sealing end is provided with a groove, which is connected to the laser channel. An adjustment part is provided on the outside of the laser channel. Four threaded holes are evenly distributed along the circumference on the outer surface of the adjustment part. A ridge structure is machined in the middle of the bottom of the adjustment part. The end of the adjustment part away from the ridge structure is the output lens fixing end. The surface of the output lens fixing end is provided with an external thread, and an output lens is attached to its inner cavity. A negative electrode metal cap is installed on the outside of the output lens.

3. The adjustable carbon dioxide laser metal head according to claim 2, characterized in that, Both the threaded hole and the adjusting bolt are made of fine thread.

4. The adjustable carbon dioxide laser metal head according to claim 2, characterized in that, Both the adjusting bolt and the threaded hole adopt a tapered structure that gradually increases in size from bottom to top.

5. The adjustable carbon dioxide laser metal head according to claim 2, characterized in that, The output lens is attached to the output lens groove located on the end face of the fixed end of the output lens.

6. The adjustable carbon dioxide laser metal head according to claim 2, characterized in that, The internal thread on the negative electrode metal cap mates with the external thread.

7. The adjustable carbon dioxide laser metal head according to claim 2, characterized in that, The bottom wall thickness of the adjustment part is 0.3-0.4 mm, and the ridge structure is formed by cold pressing.

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