CN112736628A

CN112736628A - CO2Laser tube assembling and adjusting locking device and optical equipment

Info

Publication number: CN112736628A
Application number: CN202110050187.6A
Authority: CN
Inventors: 毕进子; 宋勇强
Original assignee: Shanghai Institute of Laser Technology
Current assignee: Shanghai Institute of Laser Technology
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-04-30
Anticipated expiration: 2041-01-14
Also published as: CN112736628B

Abstract

The invention relates to CO₂Locking device is transferred in dress of laser pipe includes: a frame member; an upper stationary ring assembly; a lower stationary ring assembly; for the CO₂The position adjusting mechanism is arranged corresponding to the upper fixing ring assembly and the lower fixing ring assembly and comprises a fixed seat, an adjusting seat and a fine adjustment screw; a spring; and for the regulated CO₂The steel wire locking mechanism for locking and fixing the 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 penetrates through an inner hole of the locking bolt pair, and the set screw penetrates through a threaded hole in the side face of the locking bolt pair to tightly press the steel wire. The invention also relates to an optical device. The adjusting and locking device of the CO2 laser tube and the optical equipment can reliably lock the CO2 laser tube and can realize the precise adjustment of the CO2 laser tube.

Description

CO2Laser tube assembling and adjusting locking device and optical equipment

Technical Field

The invention belongs to the technical field of photoelectricity, and particularly relates to an assembly, adjustment and locking device of a CO2 laser tube and optical equipment.

Background

CO₂The laser device has the characteristics of high efficiency and wide application, and is a typical gas laser. CO2₂The laser is mainly used for cutting, vaporizing, carbonizing, coagulating and irradiating human tissues in medicine, and is widely applied to the operation treatment of otolaryngology department, dermatology department, plastic cosmetology department, gynecology department, neurosurgery department and the like. CO2₂CO pair requirement in laser therapy apparatus₂Laser is adjusted and locked to facilitate CO injection₂Laser beamAnd CO₂The light guide system in the laser therapeutic machine realizes optical coaxial.

Prior art adjusting and locking devices usually use rubber strips to wind CO₂Winding a circle of laser tube outside diameter, and curing the rubber strip in CO by using silica gel₂The laser tube plays a role in protecting the glass tube. Then the CO is converted into the CO through the matching of a locking ring and a three-way symmetrical screw₂The laser tube is arranged in the locking ring and then the CO is adjusted₂The three-way screws at the front end and the rear end of the laser tube realize the purpose of optical assembly and calibration. Finally, the screw is fastened by a locknut, thereby locking the CO₂And (3) a laser tube.

In this way, on the one hand, the locking device, when the screw is tightened by the locknut, slightly rotates the screw, thereby causing CO₂Slight change of the output light path of the laser tube, thereby affecting CO₂The accuracy of the output light path of the laser tube; on the other hand, due to the screws and CO₂The contact area of the laser tube is small, if the screw is in CO pair₂The pressure of the laser tube is smaller, then CO₂The laser tube is easy to loosen, so that the light path is deviated; if the screw is to CO₂The pressure of the laser tube is high, which easily causes CO₂The laser tube breaks. Therefore, the existing adjusting and locking device has a plurality of disadvantages.

To solve the above problems, the patent application No. CN202010105237.1, the title of which is CO, is proposed by Wuhanqizhi laser technology GmbH₂The locking device of the laser tube and the Chinese invention patent of the optical equipment for installing the locking device effectively improve CO in the disclosed embodiment₂The laser tube bears the pressure problem, and the optical path deviation problem is improved to a certain extent through an axial locking method. This approach still has certain disadvantages. For example, the application is only suitable for the case that the adjustment angle range is not large, and for the case that the adjustment angle range is large, the method cannot fundamentally eliminate the problem of the optical path deviation caused by the locking method. And the method has the defects of thicker adjusting precision and complicated adjusting steps as in the prior art.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention provides a CO₂The laser tube is installed and adjusted by the locking device, not only can be used for connecting CO with the laser tube₂The laser tube is reliably locked, and CO can be realized₂The function is more powerful because of the precise adjustment of the laser tube.

In order to achieve the purpose, the technical scheme of the application is as follows:

CO₂locking device is transferred in dress of laser pipe includes:

the frame component comprises a vertical plate and a transverse plate which are vertically connected, and the vertical plate and the transverse plate form a two-dimensional space;

an upper fixing ring assembly located in the two-dimensional space for fastening CO₂A laser tube front end;

the lower fixed ring assembly is positioned in the two-dimensional space and used for fastening the rear end of the CO2 laser tube;

the position adjusting mechanism is used for radially adjusting the CO2 laser tube, corresponds to the upper fixing ring component and the lower fixing ring component, and comprises a fixing seat, an adjusting seat and a fine adjustment screw, wherein the adjusting seat is fixedly connected with the fixing seat, and one end of the fine adjustment screw penetrates through the adjusting seat and abuts against the corresponding upper fixing ring component or the corresponding lower fixing ring component;

the spring is used for applying a certain pretightening force to the upper fixed ring assembly and the lower fixed ring assembly and is matched with the position adjusting mechanism to realize radial adjustment;

and for the regulated CO₂The steel wire locking mechanism for locking and fixing the 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 penetrates through an inner hole of the locking bolt pair, and the set screw penetrates through a threaded hole in the side face of the locking bolt pair to tightly press the steel wire.

The preferable technical scheme is as follows:

CO as described above₂And the lower fixed ring assembly and the upper fixed ring assembly are parallel and coplanar in direction.

CO as described above₂Locking device is transferred in dress of laser pipe, go up fixed ring subassembly with fixed ring subassembly all includes solid fixed ring main part, solid fixed ring annex and rubber strip inside lining down, the rubber strip inside lining combines silicon rubber bonding solidification on CO2 laser pipe external diameter, solid fixed ring main part is pressed from both sides the rubber strip inside lining tightly with solid fixed ring annex down through fastening screw and mechanical mounting flange face down, accomplishes the completion to CO₂And (5) fastening the front end or the rear end of the laser tube.

CO as described above₂The adjusting seat is provided with a lug part, and one end of the fine adjustment screw penetrates through the lug part and abuts against the corresponding upper fixing ring component or the lower fixing ring component.

CO as described above₂The laser tube assembling and adjusting locking device is characterized in that the position adjusting mechanism further comprises a locknut, and the locknut is located on the upper surface of the lug part and sleeved on the fine adjustment screw.

CO as described above₂And the two position adjusting mechanisms are respectively and fixedly arranged on the vertical plate and the transverse plate.

The invention also provides an optical device comprising a CO as described in any of the above₂Locking device of laser tube and CO₂Laser tube of said CO₂The laser pipe is sleeved in the locking device.

Compared with the prior art, the method has the following technical effects:

(1) CO of the invention₂The laser tube installing and adjusting locking device realizes the non-offset locking of the light path after adjustment in a large range;

(2) CO of the invention₂The laser tube installing and adjusting locking device carries out soft and hard combined pre-installation treatment on the CO2 laser tube, thereby solving the problem of the prior artThe design defect caused by soft processing of the CO2 laser tube in the prior art is overcome, and the mechanical requirement required for locking and fixing is realized;

(3) CO of the invention₂The fine-thread fine-adjustment screw is adopted in the fine-thread adjusting and locking device of the laser tube, so that precise optical adjustment is realized, and the loss of optical power is greatly reduced.

Drawings

FIG. 1 is a basic schematic diagram of optical conditioning according to an embodiment of the present invention;

FIG. 2 is a diagram of CO in the example of the present invention₂The structure schematic diagram of the installation and adjustment locking device of the laser tube;

FIG. 3 is a diagram of CO in an example of the present invention₂The upper end of the laser tube installing, adjusting and locking device is structurally schematic;

FIG. 4 shows CO in an example of the present invention₂The lower end of the locking device is arranged and adjusted on the laser tube;

FIG. 5 shows CO in an example of the present invention₂The bottom view of the laser tube adjusting and locking device;

fig. 6 is a cross-sectional view of a wire locking mechanism in an embodiment of the present invention.

In the figure: 100. CO2₂A laser tube; 200. a frame member; 210. a vertical plate; 220. a transverse plate; 300. an upper stationary ring assembly; 400. a lower stationary ring assembly; 500. a position adjustment mechanism; 510. a fixed seat; 520. an adjusting seat; 530. fine adjustment of screws; 540. a locknut; 600. a spring; 700. a steel wire locking mechanism; 710. a steel wire; 720. locking the bolt pair; 730. and (5) tightening the screw.

Detailed Description

The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The following further describes embodiments of the present invention.

Referring to fig. 1-5, wherein fig. 1 is a basic schematic diagram of optical adjustment provided by an embodiment of the present invention, and fig. 2 is a schematic diagram of CO provided by an embodiment of the present invention₂FIG. 3 is a schematic structural diagram of the laser tube adjusting and locking device, and FIG. 3 is a schematic structural diagram of a CO tube adjusting and locking device in an embodiment of the invention₂The upper end of the laser tube adjusting and locking device is schematically shown in the figure, and figure 4 is CO in the embodiment of the invention₂The structure of the lower end of the laser tube adjusting and locking device is schematically shown in FIG. 5, which is CO in the embodiment of the invention₂A bottom view of the laser tube adjustment locking device, and fig. 6 is a sectional view of the steel wire locking mechanism in the embodiment of the invention.

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

The frame member 200 comprises a vertical plate 210 and a horizontal plate 220 which are vertically connected, wherein the vertical plate 210 and the horizontal plate 220 form a two-dimensional space, the vertical plate 210 and the horizontal plate 220 are respectively used as an X axis and a Y axis of the two-dimensional space, and the purpose of establishing the two-dimensional space is to realize two-dimensional linear displacement adjustment of the device along the X axis and the Y axis and meet the requirement of optical near-field adjustment and locking.

The upper fixing ring assembly 300 is located in the two-dimensional space and used for fastening the front end of the CO2 laser tube 100.

The lower fixing ring assembly 400 is located in the two-dimensional space and is used for fastening the rear end of the CO2 laser tube 100.

In this embodiment, the upper fixing ring assembly 300 and the lower fixing ring assembly 400 are both hollow rectangular parallelepiped, wherein the shapes of the upper fixing ring assembly 300 and the lower fixing ring assembly 400 are set according to the principle of eliminating other displacement variables coupled during the adjustment process as much as possible, and the requirements of subsequent fastening assembly are met. The present embodiment is not limited to a specific shape or configuration.

In a preferred embodiment, the lower retaining ring assembly 400 may be specifically configured as follows: the lower retaining ring assembly 400 is parallel to and coplanar with the upper retaining ring assembly 300, and the purpose of this arrangement is to eliminate other displacement variables coupled during adjustment as much as possible, and to achieve unique adjustment for each dimension.

The position adjustment mechanism 500 is used to radially adjust the CO2 laser tube 100, and therefore, it is necessary to set the position adjustment mechanism 500 corresponding to the upper fixing ring assembly 300 and the lower fixing ring assembly 400 at the position of the position adjustment mechanism 500. Wherein, the corresponding setting means: for either the upper or lower

stationary ring assemblies

300, 400, the position adjustment mechanism 500 is disposed adjacent in parallel to the position of the corresponding upper or lower

stationary ring assembly

300, 400, respectively.

In this embodiment, two position adjustment mechanisms 500 are provided corresponding to the upper fixing ring assembly 300 and the lower fixing ring assembly 400, and are respectively and fixedly mounted on the vertical plate 210 and the horizontal plate 220.

Position adjustment mechanism 500 includes fixing base 510, regulation seat 520, fine setting screw 530 and locknut 540, a lug portion has on the regulation seat 520, adjust seat 520 with fixing base 510 fixed connection, fine setting screw 530 one end is passed this lug portion and is supported and hold on the solid subassembly 300 of the last fixed ring that corresponds or solid subassembly 400 of lower fixed ring, locknut 540 is located lug portion upper surface and registrate on fine setting screw 530. In this embodiment, the adjusting seat 520 is mainly used for assembling the fine adjustment screw 530, the fine adjustment screw 530 is used for adjusting the horizontal displacement of the CO2 laser tube 100, and the locknut 540 is used for assisting in locking the state of the CO2 laser tube 100.

The middle of the spring 600 surrounds the periphery of the upper fixed ring assembly 300 or the lower fixed ring assembly 400, two ends of the spring are respectively and fixedly connected to the position adjusting mechanisms 500 on the corresponding upper fixed ring assembly 300 or the corresponding lower fixed ring assembly 400, specifically, two ends of the spring 600 are respectively embedded into the fixing seats 510, the spring is used for applying a certain pre-tightening force to the upper fixed ring assembly and the lower fixed ring assembly, and the radial adjustment is realized by matching with the position adjusting mechanisms.

The wire locking mechanism 700 is used for adjusting the adjusted CO₂The laser tube 100 is locked and fixed and comprises a steel wire 710 and a locking head, wherein the locking head comprises a locking bolt pair 720 and a set screw 730, the steel wire 710 penetrates through an inner hole of the locking bolt pair 720, and the set screw penetrates through a threaded hole in the side surface of the locking bolt pair 720 to press the steel wire 710 tightly.

In specific application, please refer to fig. 5, the upper fixed ring assembly 300, the 2 position adjusting mechanisms 500, the spring 600 and the steel wire locking mechanism 700 form two-dimensional displacement adjustment, that is, two-dimensional linear displacement adjustment along the X axis and the Y axis is realized, and the optical near-field adjustment locking requirement is met. The specific adjustment steps for the two-dimensional linear displacement adjustment along the X-axis and the Y-axis are: the fine tuning screw 530 in the X-axis direction is adjusted to make the laser light approach the red aiming light of the near-field point, and then the fine tuning screw 530 in the Y-axis direction is adjusted to make the laser light coincide with the red aiming light of the near-field point. Finally, the respective locknuts 540 are tightened, respectively.

The two-dimensional angle adjustment is composed of a lower fixing ring component 400, 2 position adjusting mechanisms 500, a spring 600 and a steel wire locking mechanism 700, and the displacement adjusting node on the upper fixing ring component 300 is used as a base point to realize the angle adjustment, namely the two-dimensional angle adjustment (theta) along the X axis and the Y axis is realized_xAnd theta_y) And the requirements of optical far field regulation and locking are met. Two-dimensional angular adjustment (θ) along X-axis and Y-axis_xAnd theta_y) The specific adjusting steps are as follows: first of all, theta_x Fine tuning screw 530 in axial direction to make laser approach to far-field point red aiming light, and then adjusting theta_yAn axially fine tuning screw 530 allows the laser to be coincident with the red aiming light of the far field point. Finally, the respective loose nuts are tightened, respectively.

Prior art adjusting and locking devices usually use rubber strips to wind CO₂The outer diameter of the laser tube 100 is wound by a circle, and then the rubber strip is solidified in CO by using silica gel₂The laser tube 100 serves to protect the glass tube. Then the CO is converted into the CO through the matching of a locking ring and a three-way symmetrical screw₂The laser tube 100 is placed in the locking ring and then CO is adjusted₂The three-way screws at the front and rear ends of the laser tube 100 achieve the purpose of optical alignment. Finally, the screw is fastened by a locknut 540, thereby locking the CO₂ A laser tube 100.

In this prior art approach, on one hand, the locking device slightly rotates the screw when the screw is tightened by the locknut 540, thereby causing CO₂Slight variations in the output path of the laser tube 100, which in turn affects the CO₂Accuracy of the output optical path of the laser tube 100; on the other hand, because the contact area between the screw and the CO2 laser tube 100 is small, if the screw is in contact with the CO, the screw pair₂The pressure of the laser tube 100 is small, CO₂The laser tube 100 is easily loosened, resulting in optical path deviation; if the screw is to CO₂The higher pressure of the laser tube 100 is likely to cause CO₂The laser tube 100 is broken.

In the present application, CO is effectively solved₂The laser tube 100 bears the pressure problem, and the locking mode adopts a steel wire locking mechanism 700, so that CO is generated₂The laser tube 100 does not easily become loose, thereby causing optical path deviation.

The present embodiment also discloses an optical device comprising a CO as described above₂Locking device of laser tube 100 and CO₂Laser tube of said CO₂The laser pipe is sleeved in the locking device. Since the optical device in this embodiment also has the above-described CO₂The advantageous effects of the locking device for the laser tube 100 are not described in detail herein.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the 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 adjustment and locking device of CO ₂ laser tube, is characterized in that, comprises:

a frame member, comprising vertically connected vertical plates and horizontal plates, the vertical plates and the horizontal plates form a two-dimensional space;

The upper fixing ring assembly, located in the two-dimensional space, is used to fasten the front end of the CO ₂ laser tube;

The lower fixing ring assembly, located in the two-dimensional space, 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 is set corresponding to the upper fixing ring assembly and the lower fixing ring assembly, and includes a fixing seat, an adjustment seat and a fine adjustment screw. the fixing base is fixedly connected, and one end of the fine adjustment screw passes through the adjusting base and abuts on the corresponding upper fixing ring assembly or lower fixing ring assembly;

a spring, the middle part 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, the The spring is used to exert a certain pre-tightening force on the upper fixing ring assembly and the lower fixing ring assembly, and cooperate with the position adjustment mechanism to realize radial adjustment;

And a steel wire locking mechanism for locking and fixing the adjusted CO ₂ laser tube, including a steel wire and a locking head, the locking head includes a locking bolt pair and a set screw, and the steel wire passes through the locking The inner hole of the bolt pair, and the staring screw passes through the threaded hole on the side surface of the locking bolt to press the steel wire.

2 . The adjusting and locking device for a CO ₂ laser tube according to claim 1 , wherein the directions of the lower fixing ring assembly and the upper fixing ring assembly are parallel and coplanar. 3 .

3. The CO ₂ laser tube assembling and locking device according to claim 1, wherein the upper fixing ring assembly and the lower fixing ring assembly both comprise a fixing ring main body, a fixing ring accessory and a rubber strip The inner lining of the rubber strip is glued and cured on the outer diameter of the CO ₂ laser tube, and the main body of the fixing ring and the attachment of the fixing ring clamp the inner lining of the rubber strip through the fastening screws and the mechanical installation flange surface, Complete the tightening of the front or rear end of the CO ₂ laser tube.

4 . The adjusting and locking device for CO ₂ laser tube according to claim 1 , wherein the adjusting seat has a lug portion, and one end of the fine adjustment screw passes through the lug portion and abuts on the lug portion. 5 . on the corresponding upper fixing ring assembly or lower fixing ring assembly.

5 . The CO ₂ laser tube assembling and locking device according to claim 4 , wherein the position adjustment mechanism further comprises a locking nut, and the locking nut is located on the upper surface of the lug portion and is sleeved. 6 . on the fine adjustment screw.

6 . The adjusting and locking device for a CO ₂ laser tube according to claim 1 , wherein, corresponding to the upper fixing ring assembly or the lower fixing ring assembly, the position adjustment mechanism is provided with two , and are respectively fixed and installed on the vertical plate and the horizontal plate.

7. An optical device, characterized in that it comprises the CO ₂ laser tube locking device according to any one of claims 1 to 5 and a CO ₂ laser tube, wherein the CO ₂ laser tube is sleeved on the lock inside the device.