A carbon dioxide laser with adjustable-pitch electrodes

Abstract

This invention belongs to the field of carbon dioxide laser technology, specifically a carbon dioxide laser with adjustable electrode spacing. It includes a gas storage tube with end caps at both ends and two symmetrical support seats at the bottom. By incorporating an annular groove and telescopic tubes, the physical distance between the end caps and the gas storage tube increases when the two telescopic tubes slide out of the annular groove, affecting the discharge characteristics of the gas inside the storage tube and consequently the stability and efficiency of the laser output, thus adapting to different application scenarios. A lead screw is incorporated; when the lead screw rotates, a sliding block moves axially along the lead screw under the action of the thread. The sliding block, limited by the sliding rod, adjusts the end cap spacing. This structural design achieves precise control of the end cap spacing through the synergistic effect of mechanical transmission and the limiting mechanism.

Description

Technical Field

[0001] This invention belongs to the field of carbon dioxide laser technology, specifically a carbon dioxide laser with adjustable electrode spacing. Background Technology

[0002] A carbon dioxide laser is a gas laser that uses carbon dioxide gas as its working medium. It generates stimulated emission by exciting a gas mixture through an electric arc discharge, emitting infrared laser light with a wavelength of approximately 10.6 micrometers. It features high power, high efficiency, and a wide wavelength range, and is widely used in industrial processing (such as cutting and welding), medical surgery, scientific research, and materials processing.

[0003] A search revealed a Chinese patent for a carbon dioxide laser (authorization announcement number CN 103022887 B). This patented technology includes a gas storage tube (5), a water cooling tube (6), and a discharge tube (7). The water cooling tube (6) is fitted outside the discharge tube (7), and the gas storage tube (5) is fitted outside the water cooling tube (6). The anode resonant cavity (2) and the cathode resonant cavity (9) of the discharge tube (7) are respectively provided with an anode electrode (1) and a cathode electrode (10). The water cooling tube (6) is provided with an inlet pipe (8) and an outlet pipe (3) at both ends. The anode resonant cavity (2) is connected to the gas storage tube (5) through a return gas pipe (4) coiled around the outside of the water cooling tube (6). The gas storage tube (5) is provided with a protrusion (11) in the middle, and the inner diameter of the protrusion (11) is larger than the inner diameter of both ends of the gas storage tube (5). The beneficial effects of this invention are: it increases the product's bending strength and stability; the output power is more stable; the working gas storage capacity is increased; and the service life is significantly improved.

[0004] In the existing technology, the positive and negative electrodes of carbon dioxide lasers usually adopt a fixed structure, and the electrode spacing is fixed during the manufacturing process and cannot be adjusted according to actual use requirements. Since the electrode spacing directly affects the uniformity, stability and laser output performance of gas discharge, different application scenarios (such as industrial processing and scientific research experiments) have different requirements for discharge characteristics. Therefore, it is necessary to replace the laser with different specifications to meet the requirements, which is cumbersome and costly. Utility Model Content

[0005] To address the shortcomings of existing technologies and solve the problem that the positive and negative electrodes of carbon dioxide lasers typically employ a fixed structure with a fixed electrode spacing during manufacturing, making it impossible to adjust according to actual usage requirements, and since the electrode spacing directly affects the uniformity, stability, and laser output performance of gas discharge, different application scenarios (such as industrial processing and scientific research experiments) have different requirements for discharge characteristics, thus requiring the replacement of lasers of different specifications to meet the needs, which is cumbersome and costly, this utility model proposes a carbon dioxide laser with adjustable electrode spacing.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a carbon dioxide laser with adjustable spacing electrodes, comprising a gas storage tube, both ends of the gas storage tube are provided with end caps, two support seats are symmetrically arranged at the bottom of the gas storage tube, and a spacing adjustment mechanism is provided at both ends of the gas storage tube.

[0007] The spacing adjustment mechanism includes two annular grooves at both ends of the gas storage pipe, with telescopic tubes slidably connected in each of the two annular grooves. Both telescopic tubes are fixedly connected to the ends. A dual-axis motor is installed directly below the middle of the gas storage pipe. Rotating shafts are fixedly connected to the two output shafts of the dual-axis motor. Fixed frames are fixedly connected to the side of each of the two support seats near the ends. Lead screws are rotatably connected in each of the two fixed frames. Sliding rods are fixedly connected in each of the two fixed frames. Both rotating shafts are coaxially fixedly connected to the lead screws.

[0008] Preferably, each of the two fixed frames has a sliding block slidably connected inside, the top of each of the two sliding blocks is threaded to a lead screw, the bottom of each of the two sliding blocks is slidably connected to a slide rod, and the top of each of the two sliding blocks is fixedly connected to a connecting rod.

[0009] Preferably, each of the two connecting rods is fixedly connected to a connecting seat 1 at its top, and a connecting seat 2 is provided at the top of each of the two connecting seats 1. Two bolts 1 are symmetrically provided at both ends of each of the two connecting seats 2, and the bottom ends of the four bolts 1 are threadedly connected to the connecting seat 2.

[0010] Preferably, the top of the support base is provided with a fixing protection mechanism, which includes two fixing seats fixedly connected to the top of the two support bases. The top of each of the two fixing seats is equidistantly connected with three fixing shafts. The three fixing shafts are grouped together, and the top of each group of fixing shafts is jointly fixedly connected with a connecting seat three. A return spring is sleeved on the outer side of each group of fixing shafts.

[0011] Preferably, a connecting seat four is provided directly above each of the two connecting seats three, and bolts two are threadedly connected to both sides of the two connecting seats four, with the bottom ends of the four bolts two being threadedly connected to the connecting seat three.

[0012] Preferably, the curvature of the inner sides of the connecting seat three and the connecting seat four is the same as that of the gas storage pipe.

[0013] Preferably, it includes a controller, which is electrically connected to the dual-axis motor.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The present invention relates to a carbon dioxide laser with adjustable electrode spacing. By setting an annular groove and telescopic tubes, when the two telescopic tubes slide out of the annular groove, the physical distance between the end and the gas storage tube increases, resulting in an increase in the distance between the positive and negative terminals on the end. This change in distance directly affects the discharge characteristics of the gas in the gas storage tube. Since the stability of gas discharge is closely related to factors such as electrode spacing, gas pressure, gas composition, and external electric field distribution, it affects the stability and efficiency of laser output. By adjusting the electrode spacing, the uniformity of gas discharge can be optimized, thereby improving the output power and stability of the laser to meet the needs of different application scenarios.

[0016] 2. The adjustable-gap carbon dioxide laser of this utility model utilizes a lead screw. When the lead screw rotates, a sliding block moves axially along the lead screw under the action of the thread. The sliding block slides within the groove of the fixed frame through the limiting action of the sliding rod, thereby driving the connecting rod to move horizontally. The connecting rod is connected to connecting seat one and connecting seat two, thus driving the end head to slide horizontally. When the end head slides, its telescopic tube slides out or in from the annular groove, thereby achieving adjustment of the end head spacing. This structural design achieves precise control of the end head spacing through the coordinated action of mechanical transmission and the limiting mechanism.

[0017] 3. The adjustable-spacing electrode carbon dioxide laser of this utility model, through the setting of the reset spring, during the installation of the gas storage tube, when the connecting seat three is subjected to external impact or vibration, its fixed shaft will be subjected to the reverse force from the gas storage tube, thereby sliding along the slide groove under the limiting action of the fixed seat, and simultaneously squeezing the reset spring. After being deformed by force, the reset spring stores elastic potential energy, and then gradually returns to its original shape under the action of elastic force, pushing the output shaft of the dual-axis motor to reset, thereby realizing dynamic buffering and protection of the gas storage tube. When the gas storage tube is subjected to impact or vibration, the energy is absorbed and released through the compression and reset of the reset spring, thereby effectively reducing the direct impact force on the gas storage tube, extending the service life of the equipment, and providing a stable operating state during installation or use. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a cross-sectional schematic diagram of the annular groove structure of this utility model;

[0022] Figure 4 This is a cross-sectional schematic diagram of the fixing frame and its internal structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the top structure of the fixing base of this utility model;

[0024] In the picture:

[0025] 1. Gas storage pipe; 2. End cap; 3. Support base;

[0026] 4. Spacing adjustment mechanism; 41. Annular groove; 42. Telescopic tube; 43. Dual-axis motor; 44. Rotating shaft; 45. Fixing frame; 46. Lead screw; 47. Slide rod; 48. Sliding block; 49. Connecting rod; 410. Connecting seat one; 411. Connecting seat two; 412. Bolt one;

[0027] 5. Fixed protection mechanism; 51. Fixed seat; 52. Fixed shaft; 53. Connecting seat three; 54. Return spring; 55. Connecting seat four; 56. Bolt two. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figures 1 to 5 As shown, this utility model provides a technical solution: a carbon dioxide laser with adjustable spacing electrodes, including a gas storage tube 1. Both ends of the gas storage tube 1 are provided with end caps 2. Two support seats 3 are symmetrically arranged at the bottom of the gas storage tube 1. A spacing adjustment mechanism 4 is provided at both ends of the gas storage tube 1. The spacing adjustment mechanism 4 includes two annular grooves 41 formed at both ends of the gas storage tube 1. Telescopic tubes 42 are slidably connected within each of the two annular grooves 41. Both telescopic tubes 42 are fixedly connected to the end caps 2. A dual-axis motor 43 is provided directly below the middle of the gas storage tube 1. Rotating shafts 44 are fixedly connected to the two output shafts of the dual-axis motor 43. Fixing frames 45 are fixedly connected to the side of each support seat 3 near the end caps 2. Lead screws 46 are rotatably connected within each of the two fixing frames 45. Sliding rods 47 are fixedly connected within each of the two fixing frames 45. Both rotating shafts 44 are coaxially fixedly connected to the lead screws 46.

[0030] With the above technical solution, the two ends 2 are respectively provided with positive and negative terminals. These terminals are connected to an external power source through wires to provide a stable current input. When the two telescopic tubes 42 slide out of the annular groove 41, the physical distance between the ends 2 and the gas storage tube 1 increases, which causes the spacing between the positive and negative terminals on the ends 2 to also increase. This change in spacing will directly affect the discharge characteristics of the gas in the gas storage tube 1, because the stability of gas discharge is closely related to factors such as electrode spacing, gas pressure, gas composition and external electric field distribution, thereby affecting the stability, discharge efficiency and discharge mode of discharge, so as to adapt to the needs of different application scenarios. The discharge performance is optimized by adjusting the electrode spacing.

[0031] Specifically, such as Figures 1 to 4 As shown, each of the two fixed brackets 45 has a sliding block 48 slidably connected inside. The top of each of the two sliding blocks 48 is threadedly connected to the lead screw 46, and the bottom of each of the two sliding blocks 48 is slidably connected to the slide rod 47. The top of each of the two sliding blocks 48 is fixedly connected to the connecting rod 49, and the top of each of the two connecting rods 49 is fixedly connected to the connecting seat 410. The top of each of the two connecting seats 410 is provided with the connecting seat 411. Two bolts 412 are symmetrically arranged at both ends of each of the two connecting seats 411, and the bottom ends of the four bolts 412 are threadedly connected to the connecting seat 411.

[0032] Through the above technical solution, after the two bolts 412 firmly connect the connecting seat 411 and the connecting seat 410, the two connecting seats 410 and 411 are respectively fixed to the two ends 2 by means of threads, ensuring that the ends 2 remain stable during movement. Then, the dual-axis motor 43 starts, and its output shaft drives the two rotating shafts 44 to rotate synchronously through the coupling. The lead screw 46 starts to rotate under the drive of the motor. Since there is a threaded fit between the lead screw 46 and the sliding block 48, when the lead screw 46 rotates, the sliding block 48 moves along the axial direction of the lead screw under the action of the thread. The sliding block 48 slides in the groove of the fixed frame 45 through the limiting action of the sliding rod 47, thereby driving the connecting rod 49 to move horizontally. The connecting rod 49 is connected to the connecting seat 410 and the connecting seat 411, thereby driving the ends 2 to slide horizontally. When the ends 2 slide, the telescopic tube 42 on it will slide out or slide in from the annular groove 41, thereby realizing the adjustment of the distance between the ends 2.

[0033] Specifically, such as Figures 1 to 5As shown, a fixing protection mechanism 5 is provided on the top of the support base 3. The fixing protection mechanism 5 includes two fixing bases 51 fixedly connected to the top of the two support bases 3. Three fixing shafts 52 are equidistantly slidably connected to the top of the two fixing bases 51. The three fixing shafts 52 are grouped together. The top of each group of fixing shafts 52 is fixedly connected to a connecting base 3 53. A return spring 54 is sleeved on the outside of the two groups of fixing shafts 52. A connecting base 4 55 is provided directly above the two connecting bases 3 53. Bolts 2 56 are threadedly connected to both sides of the two connecting bases 4 55. The bottom ends of the four bolts 2 56 are threadedly connected to the connecting bases 3 53. The curvature of the inner side of the connecting bases 3 53 and the connecting bases 4 55 is the same as that of the gas storage pipe 1.

[0034] With the above technical solution, when installing the gas storage pipe 1, the connecting seat 4 55 is not directly connected to the connecting seat 3 53 by bolt 2 56. At this time, both ends of the gas storage pipe 1 can be symmetrically placed in the groove of the connecting seat 3 53. The groove structure design achieves initial positioning. Then, the connecting seat 4 55 is pressed on the top of the gas storage pipe 1, and the connecting seat 4 55 and the connecting seat 3 53 are fixedly connected by bolt 2 56, thereby completing the fixed installation of the gas storage pipe 1. During this process, when the connecting seat 3 53 is subjected to external impact or vibration, its fixing shaft 52 will be subjected to the reverse force from the gas storage pipe 1. The force exerted causes the gas storage pipe 1 to slide along the groove under the limiting action of the fixed seat 51, while simultaneously compressing the return spring 54. After being deformed by the force, the return spring 54 stores elastic potential energy and then gradually returns to its original shape under the action of the elastic force, pushing the output shaft of the dual-axis motor 43 to reset. This achieves dynamic buffering and protection for the gas storage pipe 1. When the gas storage pipe 1 is subjected to impact or vibration, the energy can be absorbed and released through the compression and reset of the return spring, thereby effectively reducing the direct impact force on the gas storage pipe 1, extending the service life of the equipment, and providing a stable operating state during installation or use.

[0035] Specifically, such as Figure 1 As shown, it includes a controller, which is electrically connected to a dual-axis motor 43.

[0036] Through the above technical solution, the controller can control the opening and closing of the dual-axis motor 43.

[0037] In use, the two ends of the gas storage pipe 1 are symmetrically placed in the grooves of the connecting seat 3 53. The groove structure design achieves initial positioning. Then, the connecting seat 4 55 is pressed on the top of the gas storage pipe 1, and the connecting seat 4 55 and the connecting seat 3 53 are fixedly connected by the bolt 2 56, thus completing the fixed installation of the gas storage pipe 1. During this process, when the connecting seat 3 53 is subjected to external impact or vibration, its fixing shaft 52 will be subjected to a reverse force from the gas storage pipe 1. Under the limiting action of the fixing seat 51, it slides along the slide groove direction, while squeezing the return spring 54. After being deformed by force, the return spring 54 stores elastic potential energy and then gradually returns to its original shape under the action of elastic force, pushing the output shaft of the dual-axis motor 43 to reset, realizing dynamic buffering and protection of the gas storage pipe 1. The two bolts 1 412 are then tightened. Connector 2 411 is firmly connected to connector 1 410. Connector 1 410 and connector 2 411 are respectively fixed to the two ends 2 by means of threads to ensure that the ends 2 remain stable during movement. Then, the dual-axis motor 43 is started, and its output shaft drives the two rotating shafts 44 to rotate synchronously through the coupling. The lead screw 46 starts to rotate under the drive of the motor. Since there is a threaded fit between the lead screw 46 and the sliding block 48, when the lead screw 46 rotates, the sliding block 48 moves along the lead screw axis under the action of the thread. The sliding block 48 slides in the groove of the fixed frame 45 through the limiting action of the sliding rod 47, thereby driving the connecting rod 49 to move horizontally. The connecting rod 49 is connected to connector 1 410 and connector 2 411, thereby driving the ends 2 to slide horizontally. When end 2 slides, the telescopic tube 42 on it will slide out or slide in from the annular groove 41, thereby adjusting the distance between end 2. The physical distance between end 2 and gas storage tube 1 increases, which causes the distance between the positive and negative terminals on end 2 to also increase. This change in distance will directly affect the discharge characteristics of the gas in gas storage tube 1.

[0038] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 utility model and simplifying the description, and 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. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide laser with adjustable-pitch electrodes, characterized in that, It includes a gas storage pipe (1), both ends of which are provided with end caps (2), two support seats (3) are symmetrically provided at the bottom of the gas storage pipe (1), and both ends of the gas storage pipe (1) are provided with a spacing adjustment mechanism (4). The spacing adjustment mechanism (4) includes two annular grooves (41) at both ends of the gas storage pipe (1). Telescopic tubes (42) are slidably connected in both annular grooves (41). Both telescopic tubes (42) are fixedly connected to the end (2). A dual-axis motor (43) is provided directly below the middle of the gas storage pipe (1). Rotating shafts (44) are fixedly connected to the two output shafts of the dual-axis motor (43). Fixing frames (45) are fixedly connected to the side of the two support seats (3) near the end (2). Screws (46) are rotatably connected in both fixing frames (45). Sliding rods (47) are fixedly connected in both fixing frames (45). Both rotating shafts (44) are coaxially fixedly connected to the screws (46).

2. A carbon dioxide laser with adjustable-pitch electrodes according to claim 1, characterized in that, Sliding blocks (48) are slidably connected inside both of the fixed frames (45). The top of each of the two sliding blocks (48) is threadedly connected to the lead screw (46), the bottom of each of the two sliding blocks (48) is slidably connected to the slide rod (47), and the top of each of the two sliding blocks (48) is fixedly connected to the connecting rod (49).

3. A carbon dioxide laser with adjustable-pitch electrodes according to claim 2, characterized in that, The top of each of the two connecting rods (49) is fixedly connected to a connecting seat 1 (410), and the top of the two connecting seats 1 (410) is provided with a connecting seat 2 (411). Two bolts 1 (412) are symmetrically arranged at both ends of the two connecting seats 2 (411), and the bottom ends of the four bolts 1 (412) are threadedly connected to the connecting seat 2 (411).

4. A carbon dioxide laser with adjustable-gap electrodes according to claim 1, characterized in that, The top of the support base (3) is provided with a fixing protection mechanism (5). The fixing protection mechanism (5) includes two fixing bases (51) fixedly connected to the top of the two support bases (3). The top of the two fixing bases (51) is equidistantly connected with three fixing shafts (52). The three fixing shafts (52) are grouped together. The top of each group of fixing shafts (52) is fixedly connected with a connecting seat three (53). The outer side of the two groups of fixing shafts (52) is sleeved with a return spring (54).

5. A carbon dioxide laser with adjustable-gap electrodes according to claim 4, characterized in that, A fourth connecting seat (55) is provided directly above each of the two connecting seats three (53), and bolts two (56) are threadedly connected to both sides of the two connecting seats four (55). The bottom ends of the four bolts two (56) are threadedly connected to the connecting seats three (53).

6. A carbon dioxide laser with adjustable-pitch electrodes according to claim 5, characterized in that, The curvature of the inner side of the connecting seat three (53) and the connecting seat four (55) is the same as that of the gas storage pipe (1).

7. A carbon dioxide laser with adjustable-pitch electrodes according to claim 1, characterized in that, Includes a controller, which is electrically connected to a dual-axis motor (43).

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