CN203967499U - The carbon dioxide laser with novel positive electrode structure - Google Patents
The carbon dioxide laser with novel positive electrode structure Download PDFInfo
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- CN203967499U CN203967499U CN201420436229.5U CN201420436229U CN203967499U CN 203967499 U CN203967499 U CN 203967499U CN 201420436229 U CN201420436229 U CN 201420436229U CN 203967499 U CN203967499 U CN 203967499U
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Abstract
The utility model relates to field of lasers, be particularly related to a kind of carbon dioxide laser with novel positive electrode structure, comprise ecto-entad sheathed cylinder successively, water cooling tube and discharge tube, on described discharge tube, be furnished with positive electrode and negative electrode, on described discharge tube, be also provided with anode chamber, described positive electrode is arranged in described anode chamber, on described positive electrode, described in distance, the nearer one end of negative electrode is discharge end, the discharge end of described positive electrode and the inwall of described anode chamber are spaced apart, the discharge end of described positive electrode is also spaced apart with the end of described water cooling tube.Laser of the present utility model, has weakened the deflection of anode chamber and water cooling tube generation irregular deformation, thereby has weakened the pullling of cylinder, and then has reduced the impact on output eyeglass and reflecting optics alignment accuracy, has guaranteed the output accuracy of laser.
Description
Technical field
The utility model relates to field of lasers, particularly has the carbon dioxide laser of novel positive electrode structure.
Background technology
Because carbon dioxide laser has larger power and higher energy conversion efficiency, spectral line is also abundanter, it has the Laser output of tens spectral lines near 10 microns, so be all widely used at aspects such as industry, military affairs, medical treatment, scientific researches.
Current carbon dioxide laser, the output window and the reflection window that generally include discharge tube, be set in the water cooling tube of discharge tube outside, the cylinder that is set in water cooling tube outside, the negative electrode that is separately positioned on discharge tube two ends and positive electrode and be arranged on cylinder two ends, reflection window includes reflecting optics and reflecting optics cooling device, output window includes output eyeglass and output eyeglass cooling device, fills with carbon dioxide and other assist gas in discharge tube; When adding high voltage on electrode, in discharge tube, produce glow discharge, after reflecting optics and output lens reflecting, form laser beam, from output eyeglass, penetrate and obtain final laser beam.
When laser works, positive electrode constantly electric discharge makes positive electrode place have higher temperature, and in current laser, the structure at its positive electrode place as shown in Figure 1, an end at discharge tube is provided with anode chamber, one end, anode chamber is connected with water cooling tube with discharge tube, the other end is connected with cylinder, positive electrode is arranged in anode chamber, the outer wall of positive electrode and the inwall of anode chamber are fitted closely, realization is fixing to positive electrode, by long-term constantly practice research and development, utility model people finds, the laser of this textbook structure has serious deficiency, specific as follows:
First, physical characteristic from electrode discharge, under strong electric field environment, the electric discharge position of positive electrode is normally at its place, sharp-pointed tip, and place, the tip of positive electrode is exactly its end, so when laser works, the electric discharge of positive electrode is normally in its end, and because outer wall and anode chamber's inwall of positive electrode fits tightly, the inwall of the outer wall Ye Yu anode chamber of its end fits tightly, when positive electrode discharges, position in its electric discharge can produce higher temperature, so that the part contacting with the discharge end parts of positive electrode in anode chamber has higher temperature, make anode chamber that irregular distortion occur, when serious, also may cause anode chamber's local temperature too high and burst, and cylinder can be pullled when deforming by anode chamber, because cylinder two ends are provided with output eyeglass and reflecting optics, so when cylinder is pullled, the alignment accuracy of output eyeglass and reflecting optics declines, and then the output accuracy of reduction laser,
On the other hand, for fixing positive electrode, avoid positive electrode to slide in anode chamber, when assembling, positive electrode is normally against the end of water cooling tube near the end of discharge tube, due to stopping of water cooling tube, make the position of electrode tip electric discharge not uniform and stable, , at the position being fitted tightly by water cooling tube end, do not discharge, and and water cooling tube end between the gapped position of tool always or intermittent electric discharge, also there are once in a while electric discharge phenomena in positive electrode inwall, existence due to this irregular electric discharge phenomena, the laser beam quality that laser is produced is also unstable, so also directly caused the decline of laser product quality.
So, need at present a kind of higher output accuracy that both had badly, there is again the carbon dioxide laser of good output stability.
Utility model content
The purpose of this utility model is: for existing carbon dioxide laser above shortcomings, provide a kind of higher output accuracy that both had, had again the carbon dioxide laser of good output stability.
To achieve these goals, the technical solution adopted in the utility model is:
The carbon dioxide laser with novel positive electrode structure, comprise ecto-entad sheathed cylinder successively, water cooling tube and discharge tube, on described discharge tube, be furnished with positive electrode and negative electrode, on described discharge tube, be also provided with anode chamber, described anode chamber is the tubular of hollow, one end, described anode chamber is connected with described water cooling tube, the other end is connected with cylinder, described positive electrode is arranged in described anode chamber, on described positive electrode, described in distance, the nearer one end of negative electrode is discharge end, the discharge end of described positive electrode and the inwall of described anode chamber are spaced apart, the discharge end of described positive electrode is also spaced apart with the end of described water cooling tube, described discharge end is suspended state in described anode chamber.The end of the inwall of discharge end and anode chamber and water cooling tube is spaced apart, when discharge end discharges, discharge end can be not sharply heating anode chamber and the local location on water cooling tube, avoid the local location of Liao anode chamber and water cooling tube to produce high temperature, weakened the deflection of anode chamber and water cooling tube generation irregular deformation, thereby weakened the pullling of cylinder, and then reduced the impact on output eyeglass and reflecting optics alignment accuracy, guaranteed the output accuracy of laser; And, because the discharge end of positive electrode and the end of water cooling tube separate, so discharge end is not blocked, make the electric discharge on discharge end even, also guarantee the stability of positive electrode electric discharge, and then improved the stability of laser output quality.
As preferably, the cylindrical shell that described positive electricity is very hollow, described positive electrode includes and coordinates section and changeover portion, described cooperation section matches with described anode chamber, a wherein end of described changeover portion is connected smoothly with the described section of cooperation, and the other end of described changeover portion is drawn the discharge end that forms described positive electrode gradually in towards inside.By changeover portion is set, changeover portion seamlessly transits with the section of cooperation, avoids on positive electrode, occurring other wedge angles except end, makes the electric discharge of positive electrode all at discharge end, guarantees the quality of laser Output of laser.
As preferably, on described positive electrode, be provided with along its length groove, described groove connects described cooperation section and changeover portion.Groove is set on positive electrode, makes positive electrode there is certain elasticity, in when assembling, first to the positive electrode application of force, make it that strain occur and diameter is less than the internal diameter of anode chamber, positive electrode is inserted behind anode chamber, unclamp, make positive electrode be pressed in anode chamber's inwall.
As preferably, the described girth that coordinates section outer wall equals the girth of described anode chamber inwall, and while making to coordinate groove in section to close up when coordinating section to deform, the groove of locating of described changeover portion and discharge end is also closed up.After making in positive electrode is installed in anode chamber, the groove on positive electrode is closed up, and then to make the discharge end of positive electrode be evenly not have jaggyly in a circumferential direction, has improved the stability of electric discharge, has improved the stability of laser.
Preferred as another, the girth of the outer wall of described cooperation section is less than the girth of described anode chamber inwall.The girth of the outer wall of cooperation section is less than the girth of anode chamber's inwall, facilitates the installation of positive electrode.
As preferably, on described anode chamber inwall, be provided with the projection that stops described positive electrode, when described projection contacts with the changeover portion of described positive electrode, discharge end does not contact with water cooling tube.By projection is set, guarantee that the end of discharge end and water cooling tube separates.
As preferably, described projection is annular projection, and the height of described projection is less than the distance of the described anode chamber of described discharge end distance inwall.Projection is positioned on changeover portion with the position contacting of positive electrode, and does not cover discharge end, make each position on discharge end can participate in electric discharge, further guaranteed the uniformity of discharging on discharge end, the stability of raising laser.
Preferred as another, described projection is columnar projections.Projection is set to columnar projections, reduces the area that contact with positive electrode of projection, makes protrudingly when playing and stopping positive electrode, exceeds again covering positive electrode 4 and affects the electric discharge of positive electrode itself.
As preferably, the height of described columnar projections is less than the distance of the described anode chamber of described discharge end distance inwall.Avoid columnar projections barrier discharge end and affect the electric discharge of discharge end, guarantee the stability of positive electrode electric discharge, and then guarantee the stability of laser output laser beam quality.
As preferably, described discharge end is provided with chamfering, makes discharge end on circumference, form wedge angle.Physical characteristic according to point discharge, arranges wedge angle at discharge end, further guarantees that the electric discharge of positive electrode is all at discharge end, and avoids in other position electric discharges, and then has guaranteed the stability of laser output laser beam quality.
As preferably, described negative electrode is identical with the structure of described positive electrode.The structure of negative electrode is set to identical with positive electrode, makes negative electrode have equally the beneficial effect that above-mentioned positive electrode has, and has further improved output accuracy and the output quality of laser.
Carbon dioxide laser of the present utility model, because the end of the discharge end of positive electrode and the inwall of anode chamber and water cooling tube is spaced apart, when the discharge end electric discharge of positive electrode, even if discharge end has higher temperature, its temperature is also first to pass to the cooperation section part of positive electrode, be delivered to again in anode chamber, so avoid producing high temperature on the local location of Liao anode chamber and water cooling tube, weakened anode chamber and water cooling tube that irregular distortion occurs and pullled cylinder, so guaranteed to export on cylinder the alignment accuracy of eyeglass and reflecting optics, and then guaranteed the output accuracy of laser, meanwhile, because the discharge end of positive electrode is not blocked, make the electric discharge on discharge end even, also guaranteed the stability of positive electrode electric discharge, and then improved the stability of laser output quality.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, the end of the inwall of discharge end and anode chamber and water cooling tube is spaced apart, when discharge end discharges, discharge end can be not sharply heating anode chamber and the local location on water cooling tube, avoid the local location of Liao anode chamber and water cooling tube to produce high temperature, weakened the deflection of anode chamber and water cooling tube generation irregular deformation, thereby weakened the pullling of cylinder, and then reduced the impact on output eyeglass and reflecting optics alignment accuracy, guaranteed the output accuracy of laser;
2, the discharge end due to positive electrode is not blocked, and makes the electric discharge on discharge end even, has guaranteed the stability of positive electrode electric discharge yet, and then has improved the stability of laser output quality.
Accompanying drawing explanation
Fig. 1 is the structural representation that traditional carbon dioxide laser Anodic chamber coordinates with positive electrode;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation that the utility model Anodic chamber coordinates with positive electrode;
Fig. 4 is the structural representation of positive electrode;
Fig. 5 is the partial enlarged drawing at A place in Fig. 4,
Mark in figure: 1-cylinder, 2-water cooling tube, 3-discharge tube, 4-positive electrode, 5-negative electrode, 6-discharge end, 7-changeover portion, 8-coordinates section, and 9-exports eyeglass, 10-reflecting optics, 11-groove, 12-projection, 13-wedge angle, 14-anode chamber, 15-cathode chamber.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The carbon dioxide laser with novel positive electrode structure as shown in the figure, comprise ecto-entad sheathed cylinder 1 successively, water cooling tube 2 and discharge tube 3, on described discharge tube 3, be furnished with positive electrode 4 and negative electrode 5, on described discharge tube 3, be also provided with anode chamber 14, the tubular that described anode chamber 14 is hollow, 14 one end, described anode chamber are connected with described water cooling tube 2, the other end is connected with cylinder 1, described positive electrode 4 is arranged in described anode chamber 14, on described positive electrode 4, described in distance, the nearer one end of negative electrode 5 is discharge end 6, the discharge end 6 of described positive electrode 4 is spaced apart with the inwall of described anode chamber 14, the discharge end 6 of described positive electrode 4 is also spaced apart with the end of described water cooling tube 2, described discharge end 6 is suspended state in described anode chamber 14.Discharge end 6 and the inwall of anode chamber 14 and the end of water cooling tube 2 are spaced apart, when discharge end 6 electric discharge, discharge end 6 can be not sharply heating anode chamber 14 and the local location on water cooling tube 2, avoid the local location of Liao anode chamber 14 and water cooling tube 2 to produce high temperature, weakened the deflection that irregular deformation occurs for anode chamber 14 and water cooling tube 2, thereby weakened pullling cylinder 1, and then reduced the impact on output eyeglass 9 and reflecting optics 10 alignment accuracy, guaranteed the output accuracy of laser.
As preferably, described positive electrode 4 is hollow cylindrical shell, described positive electrode 4 includes and coordinates section 8 and changeover portion 7, described cooperation section 8 matches with described anode chamber 14, a wherein end of described changeover portion 7 is connected smoothly with the described section of cooperation 8, and the other end of described changeover portion 7 is drawn the discharge end 6 that forms described positive electrode 4 gradually in towards inside.By changeover portion 7 is set, changeover portion 7 seamlessly transits with the section of cooperation 8, avoids on positive electrode 4, occurring other wedge angles except end, makes the electric discharge of positive electrode 4 all at discharge end 6, guarantees the quality of laser Output of laser.
As preferably, on described positive electrode 4, be provided with along its length groove 11, described groove 11 connects described cooperation section 8 and changeover portion 7.Groove 11 is set on positive electrode 4, makes positive electrode 4 there is certain elasticity, when assembling, first to positive electrode 4 application of forces, make it that strain occur and diameter is less than the internal diameter of anode chamber 14, positive electrode 4 is inserted behind anode chambers 14, unclamp, make positive electrode 4 be pressed in anode chamber's 14 inwalls.
As preferably, the described girth that coordinates section 8 outer walls equals the girth of described anode chamber 14 inwalls, and while making to coordinate groove 11 in section 8 to close up when coordinating section 8 to deform, the groove of locating 11 of described changeover portion 7 and discharge end 6 is also closed up.Make when positive electrode 4 be installed in anode chamber 14 interior after, the groove 11 on positive electrode 4 is closed up, and then to make the discharge end 6 of positive electrode 4 be evenly not have jaggyly in a circumferential direction, has improved the stability of electric discharge, has improved the stability of laser.
Preferred as another, the girth of the outer wall of described cooperation section 8 is less than the girth of described anode chamber 14 inwalls.The girth of the outer wall of cooperation section 8 is less than the girth of anode chamber's 14 inwalls, facilitates the installation of positive electrode 4.
As preferably, on described anode chamber 14 inwalls, be provided with the projection 12 that stops described positive electrode 4, described protruding 2 when contact with the changeover portion 7 of described positive electrode 4, and discharge end 6 does not contact with water cooling tube.By projection 12 is set, guarantee that discharge end 6 and the end of water cooling tube 2 separate.
As preferably, described protruding 12 is annular projection 12, and described protruding 12 height is less than the distance of the described discharge end 6 described anode chamber of distance 14 inwalls.Projection 12 is positioned on changeover portion 7 with the position contacting of positive electrode 4, and does not cover discharge end 6, make each position on discharge end 6 can participate in electric discharge, further guaranteed the uniformity of electric discharge on discharge end 6, improve the stability of laser.
Preferred as another, described protruding 12 is columnar projections 12.Projection 12 is set to columnar projections 12, reduces projection 12 areas that contacts with positive electrode 4, make projection 12 when playing and stopping positive electrode 4, exceed again covering positive electrode 4 and affect the electric discharge of positive electrode 4 own.
As preferably, the height of described columnar projections 12 is less than the distance of the described discharge end 6 described anode chamber of distance 14 inwalls.Avoid columnar projections 12 barrier discharge ends 6 and affect the electric discharge of discharge end 6, guarantee the stability of positive electrode 4 electric discharges, and then guarantee the stability of laser output laser beam quality.
As preferably, described discharge end 6 is provided with chamfering, makes discharge end 6 on circumference, form wedge angle 13.According to the physical characteristic of point discharge, at discharge end 6, wedge angle 13 is set, further guarantee that the electric discharge of positive electrode 4 is all at discharge end 6, and avoid in other position electric discharges, and then guaranteed the stability of laser output laser beam quality.
As preferably, described negative electrode 5 is identical with the structure of described positive electrode 4.It is identical with positive electrode 4 that the structure of negative electrode 5 is set to, and makes negative electrode 5 have equally the beneficial effect that above-mentioned positive electrode 4 has, and further improved output accuracy and the output quality of laser.
All any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (9)
1. the carbon dioxide laser with novel positive electrode structure, comprise ecto-entad sheathed cylinder successively, water cooling tube and discharge tube, on described discharge tube, be furnished with positive electrode and negative electrode, on described discharge tube, be also provided with anode chamber, described positive electrode is arranged in described anode chamber, on described positive electrode, described in distance, the nearer one end of negative electrode is discharge end, it is characterized in that, the discharge end of described positive electrode and the inwall of described anode chamber are spaced apart, the discharge end of described positive electrode is also spaced apart with the end of described water cooling tube, described discharge end is suspended state in described anode chamber.
2. carbon dioxide laser according to claim 1, it is characterized in that, the cylindrical shell that described positive electricity is very hollow, described positive electrode includes and coordinates section and changeover portion, described cooperation section matches with described anode chamber, a wherein end of described changeover portion is connected smoothly with the described section of cooperation, and the other end of described changeover portion is drawn the discharge end that forms described positive electrode gradually in towards inside.
3. carbon dioxide laser according to claim 2, is characterized in that, is provided with along its length groove on described positive electrode, and described groove connects described cooperation section and changeover portion.
4. carbon dioxide laser according to claim 3, it is characterized in that, the described girth that coordinates section outer wall equals the girth of described anode chamber inwall, and while making to coordinate groove in section to close up when coordinating section to deform, the groove of locating of described changeover portion and discharge end is also closed up.
5. carbon dioxide laser according to claim 3, is characterized in that, the girth of the outer wall of described cooperation section is less than the girth of described anode chamber inwall.
6. carbon dioxide laser according to claim 5, is characterized in that, on described anode chamber inwall, is provided with the projection that stops described positive electrode, and when described projection contacts with the changeover portion of described positive electrode, discharge end does not contact with water cooling tube.
7. carbon dioxide laser according to claim 6, is characterized in that, described projection is annular projection, and the height of described projection is less than the distance of the described anode chamber of described discharge end distance inwall.
8. carbon dioxide laser according to claim 6, is characterized in that, described projection is columnar projections, and the height of described columnar projections is less than the distance of the described anode chamber of described discharge end distance inwall.
9. according to the carbon dioxide laser described in claim 1 to 8 any one, it is characterized in that, described discharge end is provided with chamfering, makes discharge end on circumference, form wedge angle.
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| CN201420436229.5U CN203967499U (en) | 2014-08-05 | 2014-08-05 | The carbon dioxide laser with novel positive electrode structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124603A (en) * | 2014-08-05 | 2014-10-29 | 成都微深科技有限公司 | Carbon dioxide laser with novel positive electrode structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124603A (en) * | 2014-08-05 | 2014-10-29 | 成都微深科技有限公司 | Carbon dioxide laser with novel positive electrode structure |
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