Novel connecting elbow structure of folded-cavity CO2 laser

Abstract

The utility model discloses a novel connecting elbow structure of a folded-cavity CO2 laser. The novel connecting elbow structure is characterized by comprising a reference plane, two vertical glass tubes, two total reflective mirrors and a parallel glass tube, two through holes are formed in the reference plane; two vertical glass tubes are respectively sintered on the two through holes; the parallel glass tube is connected with the two vertical glass tubes; and the two total reflective mirrors are respectively assembled at corners where the parallel glass tubes are connected with the vertical glass tube. According to the utility model, the geometric constraint among the components is realized, and the definite and unique spatial configuration among the components is ensured; through the structure, the problem of precision control during manual manufacturing of the adapter elbow is effectively solved, the phenomenon of optical axis concentricity imbalance caused by geometric tolerance of the adapter elbow during assembly of the laser tube main body and the adapter elbow is greatly reduced, the operation mode of the laser is stable, the power loss of the laser is reduced, and the service life of the laser is prolonged.

Description

[Technical Field]

[0001] This utility model relates to the field of sealed CO2 lasers, specifically to a novel connecting elbow structure for a cavity CO2 laser. [Background Technology]

[0002] Sealed-out CO2 lasers are a commonly used type of laser, possessing significant advantages such as simple structure, ease of use, and low cost. Output power is a crucial performance indicator for lasers, and the power of a CO2 laser is directly related to the length of its discharge tube. Due to spatial constraints, CO2 lasers cannot be too long; therefore, cavitation is often used to extend the discharge tube length, thereby increasing the laser's output power. While cavitation effectively increases output power, it also presents significant challenges to structural design and optical path adjustment. Maintaining the laser's optical characteristics while reducing adjustment difficulty is a critical issue currently facing cavitation lasers. The optical path of a commonly used cavitation CO2 laser is as follows: Figure 1 As shown, multiple CO2 laser tubes are connected by an adapter elbow, with two total reflection mirrors installed at the corner. By precisely adjusting the spatial orientation (position and angle) of the total reflection mirrors, the optical axes of the multiple laser tubes are ensured to be strictly aligned. Currently, the manufacturing process of a single laser tube is relatively mature; therefore, the overall performance and lifespan of the folded-cavity CO2 laser mainly depend on the structural precision and assembly quality of the adapter elbow.

[0003] Currently, the manufacturing of transition elbows for folded-cavity CO2 lasers mainly relies on manual glass sintering. This process requires manually positioning each component of the elbow (including the gas inlet, discharge cavity section, and light output end) and then assembling and sintering them one by one. This method is highly dependent on the skill level of the workers, is difficult to process, and has a low yield. How to effectively solve this problem is a serious challenge facing the manufacturing of folded-cavity lasers. [Summary of the Invention]

[0004] The purpose of this invention is to provide a novel folded-cavity CO2 laser adapter elbow structure to solve problems such as poor sealing and difficult installation and positioning of existing adapter elbows.

[0005] To solve the above problems, the technical solution of this utility model is as follows: a novel connecting elbow structure for a folded cavity CO2 laser, comprising: a reference plane, two vertical glass tubes, two total reflection mirrors, and a parallel glass tube; the reference plane has two through holes; two vertical glass tubes are sintered on the two through holes respectively; the parallel glass tube connects the two vertical glass tubes; the two total reflection mirrors are respectively assembled at the corner where the parallel glass tube and the vertical glass tube are connected.

[0006] The reference plane can be rectangular, circular, or elliptical.

[0007] The reference plane is a glass reference plane.

[0008] The vertical glass tube is perpendicular to the reference plane, and the two vertical glass tubes are parallel and both are perpendicular to the reference plane; the parallel glass tube is parallel to the reference plane.

[0009] The two total reflection mirrors are each at a 45-degree angle to the reference plane, and the two total reflection mirrors are at a 90-degree angle to each other, which is used to connect the optical paths of the two laser tubes.

[0010] The two through holes on the reference plane are symmetrical. The position and size of the holes are determined by the position and size of the laser tube outlet, ensuring that they are directly opposite the two laser tube outlets of the folded cavity CO2 laser.

[0011] The two vertical glass tubes and the parallel glass tube are all cylindrical glass tubes.

[0012] The parallel glass tube is equipped with a glass flange interface for later replenishing CO2 gas to the laser.

[0013] The glass flange interface is located at the center of the parallel glass tube.

[0014] The glass flange interface has a central hole for supplying gas to the laser.

[0015] The end of the vertical glass tube furthest from the reference plane is shaped like an inverted "V".

[0016] Both ends of the parallel glass tube are inverted "V" shapes.

[0017] The advantages of this utility model are as follows: 1. This utility model achieves geometric constraints between components, ensuring that the components have a definite and unique spatial configuration. Through the above structure, the precision control problem when manually manufacturing transition elbows is effectively solved, greatly reducing the occurrence of optical axis concentricity misalignment between the laser tube body and the transition elbow due to geometric tolerances of the transition elbow, thus stabilizing the laser's operating mode, reducing laser power loss, and extending the laser's service life. 2. The total reflection mirror is glued to the corner of the transition elbow, and fine adjustments are made during debugging to ensure that the optical axes of multiple laser tubes are aligned. 3. The glass flange interface is a flange plane formed by firing, and the flange plane has a central hole for gas injection into the laser. [Attached Image Description]

[0018] Figure 1 A schematic diagram of the connection of multiple folded-cavity CO2 lasers and an enlarged schematic diagram of the transition elbow structure;

[0019] Figure 2 An overall structural diagram of the novel connecting elbow structure for the cavity CO2 laser provided by this utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the through hole on the glass reference plane of the novel connecting elbow structure of the folded cavity CO2 laser provided by this utility model and the laser tube exiting the building.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Circular glass reference plane; 2. Vertical cylindrical glass tube; 3. Total reflection mirror; 4. Parallel cylindrical glass tube; 5. Glass flange interface; 6. Rectangular glass reference plane; 7. Through hole on the reference plane; 8. Laser tube outlet; 9. Laser.

Detailed Implementation Methods

[0023] An embodiment of the novel connecting elbow structure for a cavity CO2 laser:

[0024] like Figure 2 , Figure 3 As shown, the adapter elbow structure includes a circular glass reference plane 1. Specifically, two identical and symmetrical through holes are made on the circular glass reference plane 1. The size and position of the through holes are determined according to the position and size of the laser tube outlet 8, ensuring that the size of the through holes is the same as the inner diameter of the laser tube outlet 8 and that the position is completely aligned with the center of the laser tube outlet 8. The laser tube outlet 8 is fired onto the two circular holes so that the center of the laser tube outlet 8 and the center of the through holes completely coincide.

[0025] Two vertical cylindrical glass tubes 2 are fired onto the through hole of the circular glass reference plane 1, so that the center of the through hole coincides with the center of the vertical cylindrical glass tube 2, ensuring that the vertical cylindrical glass tube 2 is perpendicular to the circular glass reference plane 1.

[0026] A parallel cylindrical glass tube 4 connects two vertical cylindrical glass tubes 2 to two total reflection mirrors 3. Specifically, the two vertical cylindrical glass tubes 2 have inverted "V" shaped connectors at their ends, and both ends of the parallel cylindrical glass tube 4 have inverted "V" shaped connectors. The vertical cylindrical glass tubes 2 and the parallel cylindrical glass tube 4 are fired together.

[0027] The adapter elbow interface includes two total reflection mirrors 3 located at the bend connection. Specifically, the whole structure is fixed to the circular glass reference surface 1, the vertical cylindrical glass tube 2, and the parallel cylindrical glass tube 4 to form a stable and unique mechanical structure. The total reflection mirrors 3 are glued to the vertical cylindrical glass tube 2 and the parallel cylindrical glass tube 4.

[0028] The parallel cylindrical glass tube 4 has a glass flange interface 5. Specifically, the glass flange interface 5 is a flange plane formed by firing, and the flange plane has a central hole for replenishing gas to the laser.

[0029] The reference plane can also be a rectangular glass reference plane 6, with two symmetrical through holes 7. The position and size of the through holes 7 are determined by the position and size of the laser tube outlets 8, ensuring that they are directly aligned with the two laser tube outlets 8 of the collimated CO2 laser. Figure 3 As shown.

[0030] This invention provides a novel connecting elbow structure for a cavity CO2 laser. Using a glass reference plane as the unified assembly reference, and through geometric constraint design, it ensures that each component has a definite and unique spatial configuration. This structure effectively solves the precision control problem encountered when manually manufacturing transition elbows, significantly reduces the assembly difficulty of the cavity CO2 laser, and achieves high-precision alignment between the laser tube outlet and the transition elbow. This mechanical structure design not only reduces the laser's power loss but also improves the stability of its operating mode, thereby significantly extending the laser's service life.

Claims

1. A novel connecting elbow structure for a cavity CO2 laser, characterized in that... It includes: a reference plane, two vertical glass tubes, two total reflection mirrors, and a parallel glass tube; the reference plane has two through holes; two vertical glass tubes are sintered into the two through holes respectively; the parallel glass tube connects the two vertical glass tubes; the two total reflection mirrors are respectively assembled at the corners where the parallel glass tubes and the vertical glass tubes are connected.

2. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 1, characterized in that... The reference plane can be rectangular, circular, or elliptical.

3. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 1, characterized in that... The reference plane is a glass reference plane.

4. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 1, characterized in that... The vertical glass tube is perpendicular to the reference plane, and the two vertical glass tubes are parallel and both are perpendicular to the reference plane; the parallel glass tube is parallel to the reference plane.

5. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 1, characterized in that... The two total reflection mirrors are each at a 45-degree angle to the reference plane, and the two total reflection mirrors are at a 90-degree angle to each other, which is used to connect the optical paths of the two laser tubes.

6. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 1, characterized in that... The two through holes on the reference plane are symmetrical. The position and size of the holes are determined by the position and size of the laser tube outlet, ensuring that they are directly opposite the two laser tube outlets of the folded cavity CO2 laser.

7. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 1, characterized in that... The two vertical glass tubes and the parallel glass tube are all cylindrical glass tubes.

8. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 1, characterized in that... The parallel glass tube is equipped with a glass flange interface for later replenishing CO2 gas to the laser.

9. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 8, characterized in that... The glass flange interface is located at the center of the parallel glass tube; the center of the glass flange interface has a central hole for supplying gas to the laser.

10. The novel connecting elbow structure for a folded-cavity CO2 laser according to claim 1, characterized in that... The vertical glass tube has an inverted "V" shape at the end furthest from the reference plane; both ends of the parallel glass tube have inverted "V" shapes.

Images