CO2 laser tube installation, adjustment and locking device and optical equipment

Abstract

The present invention relates to a CO2 laser tube installation and locking device, comprising: a frame member; an upper fixing ring assembly; a lower fixing ring assembly; a position adjustment mechanism for radially adjusting the CO2 laser tube, the position adjustment mechanism being arranged corresponding to the upper fixing ring assembly and the lower fixing ring assembly, comprising a fixing seat, an adjustment seat and a fine-tuning screw; a spring; and a steel wire locking mechanism for locking and fixing the adjusted CO2 laser tube, comprising a steel wire and a locking head, the locking head comprising a locking bolt pair and a set screw, the steel wire passing through the inner hole of the locking bolt pair, and the set screw passing through the threaded hole on the side of the locking bolt pair to press the steel wire. The present invention also relates to an optical device. The CO2 laser tube installation and locking device and the optical device of the present invention can not only reliably lock the CO2 laser tube, but also realize the precise adjustment of the CO2 laser tube.

Description

Technical Field

[0001] The invention belongs to the field of optoelectronic technology, and in particular relates to an installation, adjustment and locking device for a CO2 laser tube and optical equipment. Background Art

[0002] CO2 laser is a typical gas laser with high efficiency and wide application. CO2 laser is mainly used for cutting, vaporizing, carbonizing, coagulating and irradiating human tissue in medicine. It has been widely used in surgical treatments such as otolaryngology, dermatology, plastic surgery, gynecology and neurosurgery. CO2 laser therapy equipment needs to be adjusted and locked to facilitate the optical coaxiality of CO2 laser beam and light guide system in CO2 laser therapy equipment.

[0003] The prior art installation and locking device usually wraps a rubber strip around the outer diameter of the CO2 laser tube, and then uses silicone to solidify the rubber strip on the CO2 laser tube to protect the glass tube. Then, through the cooperation of the locking ring and the three-way symmetrical screws, the CO2 laser tube is placed in the locking ring, and the optical installation and calibration is achieved by adjusting the three-way screws at the front and rear ends of the CO2 laser tube. Finally, the screws are tightened with a lock nut to lock the CO2 laser tube.

[0004] In the prior art, on the one hand, when the locking device tightens the screw through the anti-loosening nut, it will slightly drive the screw to rotate, thereby causing a slight change in the output optical path of the CO2 laser tube, thereby affecting the accuracy of the output optical path of the CO2 laser tube; on the other hand, due to the small contact area between the screw and the CO2 laser tube, if the pressure of the screw on the CO2 laser tube is small, the CO2 laser tube is easy to loosen, resulting in optical path deviation; if the pressure of the screw on the CO2 laser tube is large, it is easy to cause the CO2 laser tube to break. It can be seen that the existing adjustment and locking device has many disadvantages.

[0005] In order to solve the above problems, Wuhan Qizhi Laser Technology Co., Ltd., with application number CN202010105237.1 and patent right, has proposed a Chinese invention patent named a locking device for a CO2 laser tube and an optical equipment for installing the locking device. The disclosed implementation scheme effectively improves the pressure-bearing problem of the CO2 laser tube, and improves the optical path deviation problem to a certain extent through the axial locking method. However, this method still has certain shortcomings. For example, this application is only suitable for situations where the adjustment angle range is not large. For situations where the adjustment angle range is large, this method still cannot fundamentally eliminate the optical path deviation problem caused by the locking method. And this method, like the prior art, has the disadvantages of coarse adjustment accuracy and cumbersome adjustment steps. Summary of the invention

[0006] In view of the defects existing in the above-mentioned background technology, the purpose of the present invention is to provide a CO2 laser tube installation and locking device, which can not only reliably lock the CO2 laser tube, but also realize precise adjustment of the CO2 laser tube, and has more powerful functions.

[0007] To achieve the above purpose, the technical solution of this application is as follows:

[0008] The CO2 laser tube installation, adjustment and locking device includes:

[0009] The frame member comprises a vertical plate and a horizontal plate connected vertically, wherein the vertical plate and the horizontal plate form a two-dimensional space;

[0010] An upper fixing ring assembly is located in the two-dimensional space and is used to fasten the front end of the CO2 laser tube;

[0011] A lower fixing ring assembly is located in the two-dimensional space and is used to fasten the rear end of the CO2 laser tube;

[0012] A position adjustment mechanism for radially adjusting the CO2 laser tube, the position adjustment mechanism being arranged corresponding to the upper fixing ring assembly and the lower fixing ring assembly, comprising a fixing seat, an adjustment seat and a fine-tuning screw, the adjustment seat being fixedly connected to the fixing seat, one end of the fine-tuning screw passing through the adjustment seat and abutting against the corresponding upper fixing ring assembly or the lower fixing ring assembly;

[0013] A spring, wherein the middle portion of the spring surrounds the outer circumference of the upper fixing ring assembly or the lower fixing ring assembly, and the two ends of the spring are respectively fixedly connected to the position adjustment mechanism on the corresponding upper fixing ring assembly or the lower fixing ring assembly, and the spring is used to apply a certain pre-tightening force to the upper fixing ring assembly and the lower fixing ring assembly, and cooperate with the position adjustment mechanism to achieve radial adjustment;

[0014] A steel wire locking mechanism for locking and fixing the adjusted CO2 laser tube comprises a steel wire and a locking head, wherein the locking head comprises a locking bolt pair and a set screw, the steel wire passes through the inner hole of the locking bolt pair, and the set screw passes through the threaded hole on the side of the locking bolt pair to press the steel wire.

[0015] The preferred technical solution is:

[0016] In the CO2 laser tube assembly, adjustment and locking device as described above, the lower fixing ring assembly and the upper fixing ring assembly are parallel and coplanar.

[0017] As described above, the CO2 laser tube installation and locking device, the upper fixing ring assembly and the lower fixing ring assembly both include a fixing ring body, a fixing ring accessory and a rubber strip lining, the rubber strip lining is bonded and cured on the outer diameter of the CO2 laser tube in combination with silicone rubber, the lower fixing ring body and the lower fixing ring accessory clamp the rubber strip lining by means of fastening screws and a mechanical mounting flange surface, thereby completing the fastening of the front end or rear end of the CO2 laser tube.

[0018] In the CO2 laser tube installation, adjustment and locking device as described above, the adjustment seat has a lug portion, and one end of the fine-tuning screw passes through the lug portion and abuts against the corresponding upper fixing ring assembly or lower fixing ring assembly.

[0019] In the CO2 laser tube installation, adjustment and locking device as described above, the position adjustment mechanism further comprises a locking nut, which is located on the upper surface of the lug portion and sleeved on the fine-tuning screw.

[0020] The CO2 laser tube mounting and locking device as described above corresponds to the upper fixing ring assembly or the lower fixing ring assembly, and the position adjustment mechanisms are provided with two and are fixedly mounted on the vertical plate and the horizontal plate respectively.

[0021] The present invention further provides an optical device, comprising the locking device for a CO2 laser tube as described in any one of the above items and a CO2 laser tube, wherein the CO2 laser tube is sleeved in the locking device.

[0022] Compared with the prior art, this application has at least the following technical effects:

[0023] (1) The CO2 laser tube adjustment and locking device of the present invention realizes the locking of the optical path without deviation after adjustment over a large range;

[0024] (2) The CO2 laser tube installation and locking device of the present invention performs a pre-installation process of the CO2 laser tube by combining softness and hardness, thereby solving the design defects caused by only performing softness treatment on the CO2 laser tube in the prior art and achieving the mechanical requirements required for locking and fixing;

[0025] (3) The CO2 laser tube adjustment and locking device of the present invention adopts a fine-threaded fine-tuning screw to achieve precise optical adjustment and greatly reduce the loss of optical power. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a basic principle diagram of optical adjustment according to an embodiment of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the installation, adjustment and locking device of the CO2 laser tube in an embodiment of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the upper end of the installation, adjustment and locking device of the CO2 laser tube in an embodiment of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the lower end of the installation, adjustment and locking device of the CO2 laser tube in an embodiment of the present invention;

[0030] Figure 5 1. It is a bottom view of the installation, adjustment and locking device of the CO2 laser tube in the embodiment of the present invention;

[0031] Figure 6 It is a cross-sectional view of the wire locking mechanism in an embodiment of the present invention.

[0032] In the figure: 100, CO2 laser tube; 200, frame member; 210, vertical plate; 220, horizontal plate; 300, upper fixing ring assembly; 400, lower fixing ring assembly; 500, position adjustment mechanism; 510, fixing seat; 520, adjustment seat; 530, fine-tuning screw; 540, anti-loosening nut; 600, spring; 700, steel wire locking mechanism; 710, steel wire; 720, locking bolt pair; 730, set screw. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] The specific embodiments of the present invention are further described below.

[0037] See also Figures 1 to 5 ,in, Figure 1The basic principle diagram of optical adjustment provided by the embodiment of the present invention is as follows: Figure 2 A schematic diagram of the structure of the CO2 laser tube installation and locking device provided in an embodiment of the present invention, Figure 3 Schematic diagram of the structure of the upper end of the CO2 laser tube installation and locking device in the embodiment of the present invention. Figure 4 Schematic diagram of the structure of the lower end of the CO2 laser tube installation and locking device in the embodiment of the present invention. Figure 5 This is a bottom view of the installation, adjustment and locking device of the CO2 laser tube in the embodiment of the present invention. Figure 6 It is a cross-sectional view of the wire locking mechanism in an embodiment of the present invention.

[0038] The embodiment of the present invention provides a CO2 laser tube 100 mounting, adjusting and locking device, including a frame member 200, an upper fixing ring assembly 300, a lower fixing ring assembly 400, a position adjustment mechanism 500, a spring 600 and a wire locking mechanism 700.

[0039] The frame member 200 includes a vertical plate 210 and a horizontal plate 220 that are vertically connected. The vertical plate 210 and the horizontal plate 220 constitute a two-dimensional space, wherein the two-dimensional space uses the vertical plate 210 and the horizontal plate 220 as the X-axis and Y-axis of the two-dimensional space respectively. The purpose of establishing the two-dimensional space is to achieve two-dimensional linear displacement adjustment of the device along the X-axis and the Y-axis to meet the optical near-field adjustment and locking requirements.

[0040] The upper fixing ring assembly 300 is located in the two-dimensional space and is used to fasten the front end of the CO 2 laser tube 100 .

[0041] The lower fixing ring assembly 400 is located in the two-dimensional space and is used to fasten the rear end of the CO 2 laser tube 100 .

[0042] In this embodiment, the upper fixing ring assembly 300 and the lower fixing ring assembly 400 are both in the shape of a hollow cuboid, wherein the shape of the upper fixing ring assembly 300 and the lower fixing ring assembly 400 is set in accordance with the principle of eliminating other displacement variables coupled during the adjustment process as much as possible, in order to meet the needs of subsequent fastening and assembly. This embodiment does not limit its specific shape and structure.

[0043] In a preferred embodiment, the lower fixing ring assembly 400 can be specifically configured as follows: the lower fixing ring assembly 400 is parallel and coplanar with the upper fixing ring assembly 300. The purpose of such configuration is to eliminate other displacement variables coupled during the adjustment process as much as possible to achieve unique adjustment of each dimension.

[0044] The position adjustment mechanism 500 is used to radially adjust the CO2 laser tube 100, so the position of the position adjustment mechanism 500 needs to be arranged corresponding to the upper fixing ring assembly 300 and the lower fixing ring assembly 400. The corresponding arrangement means that for the upper fixing ring assembly 300 or the lower fixing ring assembly 400, the position adjustment mechanism 500 is arranged parallel to and adjacent to the corresponding upper fixing ring assembly 300 or the lower fixing ring assembly 400.

[0045] In this embodiment, no matter corresponding to the upper fixing ring assembly 300 or the lower fixing ring assembly 400 , two position adjustment mechanisms 500 are provided and are fixedly mounted on the vertical plate 210 and the horizontal plate 220 , respectively.

[0046] The position adjustment mechanism 500 includes a fixing seat 510, an adjustment seat 520, a fine-tuning screw 530 and a locking nut 540. The adjustment seat 520 has a lug portion, and the adjustment seat 520 is fixedly connected to the fixing seat 510. One end of the fine-tuning screw 530 passes through the lug portion and abuts against the corresponding upper fixing ring assembly 300 or lower fixing ring assembly 400. The locking nut 540 is located on the upper surface of the lug portion and is sleeved on the fine-tuning screw 530. In this embodiment, the adjustment seat 520 is mainly used to assemble the fine-tuning screw 530, and the fine-tuning screw 530 is used to adjust the horizontal displacement of the CO2 laser tube 100. The locking nut 540 is used to assist in preventing the CO2 laser tube 100 from loosening after being adjusted and locked.

[0047] The middle part of the spring 600 surrounds the outer circumference of the upper fixing ring assembly 300 or the lower fixing ring assembly 400, and its two ends are respectively fixedly connected to the position adjustment mechanism 500 on the corresponding upper fixing ring assembly 300 or the lower fixing ring assembly 400. Specifically, the two ends of the spring 600 are respectively embedded in the fixing seat 510, and the spring is used to apply a certain pre-tightening force to the upper fixing ring assembly and the lower fixing ring assembly, and cooperate with the position adjustment mechanism to achieve radial adjustment.

[0048] The steel wire locking mechanism 700 is used to lock and fix the adjusted CO2 laser tube 100, and includes a steel wire 710 and a locking head. The locking head includes a locking bolt pair 720 and a set screw 730. The steel wire 710 passes through the inner hole of the locking bolt pair 720, and the set screw passes through the threaded hole on the side of the locking bolt pair 720 to press the steel wire 710.

[0049] For specific applications, please refer to Figure 5, the upper fixing ring assembly 300, two position adjustment mechanisms 500, spring 600 and wire locking mechanism 700 form a two-dimensional displacement adjustment, that is, to achieve two-dimensional linear displacement adjustment along the X-axis and Y-axis, meeting the optical near-field adjustment locking requirements. The specific adjustment steps of the two-dimensional linear displacement adjustment along the X-axis and Y-axis are: first adjust the fine-tuning screw 530 in the X-axis direction to make the laser close to the red light aiming light of the near-field point, and then adjust the fine-tuning screw 530 in the Y-axis direction to make the laser coincide with the red light aiming light of the near-field point. Finally, tighten the respective lock nuts 540.

[0050] The two-dimensional angle adjustment is composed of the lower fixing ring assembly 400, two position adjustment mechanisms 500, a spring 600 and a wire locking mechanism 700. The displacement adjustment point on the upper fixing ring assembly 300 is used as the base point to achieve angle adjustment, that is, to achieve two-dimensional angle adjustment along the X-axis and the Y-axis (θ x and θ y ), meeting the optical far-field adjustment and locking requirements. Two-dimensional angle adjustment along the X-axis and Y-axis (θ x and θ y ) The specific adjustment steps are: first adjust θ x The fine adjustment screw 530 in the axial direction makes the laser close to the red aiming light at the far field point, and then adjust the θ y The fine adjustment screw 530 in the axial direction makes the laser coincide with the red aiming light of the far field point. Finally, tighten the respective loosening nuts.

[0051] The prior art installation and locking device usually first wraps a rubber strip around the outer diameter of the CO2 laser tube 100, and then uses silicone to solidify the rubber strip on the CO2 laser tube 100 to protect the glass tube. Then, through the cooperation of the locking ring and the three-way symmetrical screws, the CO2 laser tube 100 is placed in the locking ring, and then the optical installation and calibration is achieved by adjusting the three-way screws at the front and rear ends of the CO2 laser tube 100. Finally, the screws are tightened with the anti-loosening nut 540 to lock the CO2 laser tube 100.

[0052] In the prior art, on the one hand, when the locking device tightens the screw through the anti-loosening nut 540, it will slightly drive the screw to rotate, thereby causing a slight change in the output light path of the CO2 laser tube 100, thereby affecting the accuracy of the output light path of the CO2 laser tube 100; on the other hand, since the contact area between the screw and the CO2 laser tube 100 is small, if the pressure of the screw on the CO2 laser tube 100 is small, the CO2 laser tube 100 is easy to loosen, resulting in the deviation of the light path; if the pressure of the screw on the CO2 laser tube 100 is large, it is easy to cause the CO2 laser tube 100 to break.

[0053] In the present application, the pressure bearing problem of the CO2 laser tube 100 is effectively solved, and the wire locking mechanism 700 is used in the locking method, so the CO2 laser tube 100 will not be easily loosened, thereby causing the optical path to deviate.

[0054] This embodiment also discloses an optical device, including the locking device of the CO2 laser tube 100 and the CO2 laser tube, wherein the CO2 laser tube is sleeved in the locking device. Since the optical device in this embodiment also has the beneficial effects of the above-mentioned CO2 laser tube 100 installation and locking device, it will not be described in detail here.

[0055] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The CO2 laser tube installation and locking device is characterized by: include: The frame member comprises a vertical plate and a horizontal plate connected vertically, wherein the vertical plate and the horizontal plate form a two-dimensional space; An upper fixing ring assembly is located in the two-dimensional space and is used to fasten the front end of the CO2 laser tube; A lower fixing ring assembly is located in the two-dimensional space and is used to fasten the rear end of the CO2 laser tube; A position adjustment mechanism for radially adjusting the CO2 laser tube, the position adjustment mechanism being arranged corresponding to the upper fixing ring assembly and the lower fixing ring assembly, comprising a fixing seat, an adjustment seat and a fine-tuning screw, the adjustment seat being fixedly connected to the fixing seat, one end of the fine-tuning screw passing through the adjustment seat and abutting against the corresponding upper fixing ring assembly or the lower fixing ring assembly; A spring, wherein the middle portion of the spring surrounds the outer circumference of the upper fixing ring assembly or the lower fixing ring assembly, and the two ends of the spring are respectively fixedly connected to the position adjustment mechanism on the corresponding upper fixing ring assembly or the lower fixing ring assembly, and the spring is used to apply a certain pre-tightening force to the upper fixing ring assembly and the lower fixing ring assembly, and cooperate with the position adjustment mechanism to achieve radial adjustment; A steel wire locking mechanism for locking and fixing the adjusted CO2 laser tube comprises a steel wire and a locking head, wherein the locking head comprises a locking bolt pair and a set screw, the steel wire passes through the inner hole of the locking bolt pair, and the set screw passes through the threaded hole on the side of the locking bolt pair to press the steel wire.

2. The CO2 laser tube installation and locking device according to claim 1, characterized in that: The lower fixing ring assembly is parallel and coplanar with the upper fixing ring assembly.

3. The CO2 laser tube installation and locking device according to claim 1, characterized in that: The upper fixing ring assembly and the lower fixing ring assembly both include a fixing ring body, fixing ring accessories and a rubber strip lining. The rubber strip lining is bonded and cured on the outer diameter of the CO2 laser tube. The fixing ring body and the fixing ring accessories clamp the rubber strip lining through fastening screws and a mechanical mounting flange surface to complete the fastening of the front end or rear end of the CO2 laser tube.

4. The CO2 laser tube installation and locking device according to claim 1, characterized in that: The adjustment seat is provided with a lug portion, and one end of the fine-tuning screw passes through the lug portion and abuts against the corresponding upper fixing ring assembly or the lower fixing ring assembly.

5. The CO2 laser tube installation and locking device according to claim 4, characterized in that: The position adjustment mechanism also includes a locking nut, which is located on the upper surface of the lug portion and is sleeved on the fine-tuning screw.

6. The CO2 laser tube installation and locking device according to claim 1, characterized in that: Corresponding to the upper fixing ring assembly or the lower fixing ring assembly, two position adjustment mechanisms are provided and are fixedly mounted on the vertical plate and the horizontal plate respectively.

7. An optical device, characterized in that: It comprises the CO2 laser tube installation, adjustment and locking device as claimed in any one of claims 1 to 5 and a CO2 laser tube, wherein the CO2 laser tube is sleeved in the installation, adjustment and locking device.

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