Laser adjusting head and laser using same

Abstract

The utility model discloses a laser adjusting head which comprises a first connecting end and a second connecting end, the first connecting end can be connected with an electrode, and the second connecting end can be connected with an output mirror and / or a tail mirror. The laser adjusting head is provided with a channel through which a laser light path can pass; a groove is formed in the circumferential direction of the laser adjusting head, a concave part is arranged in the groove, and a protrusion is arranged in the concave part. The laser adjusting head has the advantages that the protrusions of the laser adjusting head are subjected to spot welding through a spot welding machine, the laser is not prone to air leakage, the sealing performance is improved, transportation is convenient, loosening of the connecting part of an adjusting piece and a groove in the prior art is avoided, the stability of the laser in a light emitting mode is improved, and the service life of the laser is prolonged.

Description

Technical Field

[0001] This application relates to the field of laser technology, and more particularly to a laser adjustment head and a laser using the same. Background Technology

[0002] Lasers are commonly used in fields such as machinery, military, medical, and chemical engineering. Their structure generally includes a gas storage tube, a discharge tube coaxial with the gas storage tube, a cooling tube sleeved on the discharge tube, electrodes at both ends of the gas storage tube, an output mirror on one side of the electrodes, and a tail mirror on the other side. The laser power supply acts on the electrodes, causing the mixed gas in the discharge tube to oscillate to form a laser.

[0003] Ideally, the final focal point of the laser in its output mode should be located at the center of the laser spot pattern, so that the laser power can be infinitely close to the rated power.

[0004] Due to thermal expansion and contraction of the gas storage tube (especially during transportation), deformation and stress release will occur. This change will alter the relative position of the output mirror and the tail mirror, i.e., change the laser optical path, which will affect the accuracy of the laser. Therefore, an adjustment head that can change the laser optical path is needed to adjust the optical path.

[0005] In addition, Chinese patent document CN221226812U discloses a carbon dioxide laser spot adjustment device and a carbon dioxide laser device, including an adjustment housing and adjustment components. The adjustment housing has an internal optical path channel, and an output mirror mounting slot is provided at one end of the optical path channel inside the adjustment housing. The output mirror is installed inside the output mirror mounting slot. The end of the adjustment housing containing the output mirror is connected to the laser tube shell. A ring of adjustment grooves is provided around the circumference of the adjustment housing, and multiple adjustment components are connected to these grooves. The diameter of the adjustment components gradually increases from bottom to top. The other end of the adjustment housing is the light outlet. When spot adjustment is needed, the adjustment component is lowered to the depth of the adjustment groove, and the adjustment groove is squeezed by the adjustment component, causing the angle of the housing end face to change.

[0006] While the solution mentioned in this paper can adjust the light spot, it also has the following problems:

[0007] 1. The squeezing force of the adjusting component is difficult to control. If the force is too great, it can easily penetrate the end face of the housing, causing the laser to leak air.

[0008] 2. The precision of adjustment using adjusting components is low, and there will be a large error during adjustment.

[0009] 3. After prolonged use, the connection between the adjustment component and the groove may loosen, which will reduce the adjustment accuracy and affect the lifespan of the laser. Summary of the Invention

[0010] The purpose of this application is to provide a laser adjustment head and a laser using the same, in order to solve the aforementioned technical problems.

[0011] A laser adjustment head includes a first connecting end and a second connecting end. The first connecting end can be connected to an electrode, and the second connecting end can be connected to an output mirror and / or a tail mirror. The laser adjustment head is provided with a channel that allows the laser beam path to pass through. The laser adjustment head is provided with a groove in the circumference, and a recessed portion is provided in the groove, and a protrusion is provided in the recessed portion.

[0012] Its beneficial effects are: the protrusion of the laser adjustment head is spot welded by a spot welding machine, which makes the laser less prone to air leakage, improves the sealing performance, facilitates transportation, avoids the loosening of the connection between the adjustment part and the groove in the prior art, improves the stability of the laser in the light output mode, and extends the service life of the laser.

[0013] In some embodiments, the protrusion is provided on the plane of the recess, and the protrusion is located at the center of the recess.

[0014] In some implementations, the distance between the protrusion and the sidewall of the groove is equal to the distance between the protrusion and the sidewall of another groove.

[0015] Its beneficial effect is that the equal distance between the protrusion and the sidewall of the groove during machining facilitates the formation of the protrusion.

[0016] In some implementations, the raised surface is arc-shaped.

[0017] In some implementations, a threading hole is provided on the first connecting end.

[0018] In some implementations, the first connecting end may have several through holes in its circumference.

[0019] In some implementations, the angle between each thread hole and its adjacent thread hole is equal.

[0020] In some implementations, the first connection end may be provided with external or internal threads.

[0021] In some implementations, the second connection end may be provided with external or internal threads.

[0022] In some embodiments, a laser is characterized by including a laser adjustment head. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional view of this application.

[0025] Explanation of the reference numerals in the attached diagram:

[0026] 1. Groove; 2. Recess; 21. Protrusion; 3. First connecting end; 4. Second connecting end; 31. Threading hole; 5. Channel; Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] like Figure 1 As shown,

[0031] A laser adjustment head includes a first connecting end 3 and a second connecting end 4. The first connecting end 3 can be connected to an electrode, and the second connecting end 4 can be connected to an output mirror and / or a tail mirror. The laser adjustment head is provided with a channel 5 that allows the laser beam path to pass through. The laser adjustment head is provided with a groove 1 in its circumference, and a recess 2 is provided in the groove 1. A protrusion 21 is provided in the recess 2. The protrusion 21 can be spot-welded using a spot welding machine, causing the thickness of the protrusion 21 to change, thereby altering the laser beam path.

[0032] The laser adjustment head is configured with 4J29 Kovar alloy. The coefficient of thermal expansion of this material is close to that of the glass gas storage tube. Therefore, this material can minimize the impact of thermal expansion and contraction on the accuracy of the laser adjustment head and better match the gas storage tube.

[0033] When processing the protrusion 21, a jig is used to act on the left and right sides of the recess 2 respectively, so that the middle part of the recess 2 rises to form the protrusion 21.

[0034] It should be noted that the thickness (curvature) of the protrusion 21 should not be too large. If the thickness is too large, the spot offset will be small during spot welding, and the spot will not easily move to the center of the spot pattern. At the same time, the thickness (curvature) of the protrusion 21 should not be too small. If the thickness is too small, the spot welding machine will easily puncture the adjustment head, resulting in air leakage. Therefore, preferably, the wall thickness of the recess 2 is 0.40-0.80 mm, preferably 0.55-0.60 mm, and the depth of the groove 1 (i.e., the distance from the upper end face of the groove 11 to the surface of the recess 2) is preferably 3.5 mm ± 0.01 mm.

[0035] Its beneficial effects are: the protrusion 21 of the laser adjustment head is spot welded by a spot welding machine, which makes the laser less prone to air leakage, improves the sealing performance, facilitates transportation, avoids the loosening of the connection between the adjustment part and the groove 1 in the prior art, improves the stability of the laser in the light output mode, and extends the service life of the laser.

[0036] Preferably, the protrusion 21 protrudes from the plane of the recess 2, and the protrusion 21 is located at the center of the recess 2.

[0037] Preferably, the distance between the protrusion 21 and the sidewall of the groove 1 is equal to the distance between the protrusion 21 and the sidewall of the other groove 1.

[0038] Its beneficial effect is that the equal distance between the protrusion 21 and the side wall of the groove 1 during machining facilitates the formation of the protrusion 21.

[0039] Preferably, the surface of the protrusion 21 is arc-shaped.

[0040] Preferably, the first connecting end 3 is provided with a threading hole 31.

[0041] Preferably, the first connecting end 3 may have several thread holes 31 in its circumferential direction.

[0042] Preferably, the angle between each thread hole 31 and its adjacent thread hole 31 is equal.

[0043] In this embodiment, at least four threading holes 31 are provided, which are distributed at equal angles around the first connecting end 3. Therefore, there is one threading hole 31 every 90 degrees in the circumferential direction of the first connecting end 3. When threading the wire, the operator can freely choose the installation position of the laser adjustment head. At any angle, at least one threading hole 31 can be used, which makes it easy for the operator to find the threading hole 31 for threading at any angle.

[0044] Preferably, the first connecting end 3 can be provided with external threads or internal threads.

[0045] The external or internal thread on the first connecting end 3 can be engaged with the internal or external threads on the electrode or other components.

[0046] Preferably, the second connecting end 4 can be provided with external or internal threads.

[0047] The external or internal thread on the second connecting end 4 can mate with the internal or external thread on the output mirror and / or tail mirror.

[0048] Preferably, a laser includes a laser adjustment head.

[0049] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of the appended claims. In this case, all details can be replaced with equivalent elements, and the materials, shapes, and sizes can also be arbitrary.

Claims

1. A laser adjustment head, characterized in that, It includes a first connection end (3) and a second connection end (4), the first connection end (3) can be connected to an electrode, and the second connection end (4) can be connected to an output mirror and / or a tail mirror; the laser adjustment head is provided with a channel (5) that allows the laser beam path to pass through; the laser adjustment head is provided with a groove (1) in the circumference, the groove (1) is provided with a recess (2), and the recess (2) is provided with a protrusion (21).

2. The laser adjustment head according to claim 1, characterized in that, The protrusion (21) protrudes from the plane of the recess (2) and the protrusion (21) is located at the center of the recess (2).

3. A laser adjustment head according to claim 2, characterized in that, The distance between the protrusion (21) and the sidewall of the groove (1) is equal to the distance between the protrusion (21) and the sidewall of the other groove (1).

4. A laser adjustment head according to claim 1, characterized in that, The surface of the protrusion (21) is arc-shaped.

5. A laser adjustment head according to claim 1, characterized in that, The first connecting end (3) is provided with a thread hole (31).

6. A laser adjustment head according to claim 5, characterized in that, The first connecting end (3) can be provided with several wire holes (31) in the circumferential direction.

7. A laser adjustment head according to claim 6, characterized in that, The angle between each of the thread holes (31) and its adjacent thread hole (31) is equal.

8. A laser adjustment head according to claim 1, characterized in that, The first connecting end (3) can be provided with external threads or internal threads.

9. A laser adjustment head according to claim 1, characterized in that, The second connecting end (4) can be provided with external threads or internal threads.

10. A laser, characterized in that, The application includes the laser adjustment head according to any one of claims 1 to 9.

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