CN103212908A - Calibration method for dead-center position of laser spray nozzle - Google Patents
Calibration method for dead-center position of laser spray nozzle Download PDFInfo
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- CN103212908A CN103212908A CN2012100168107A CN201210016810A CN103212908A CN 103212908 A CN103212908 A CN 103212908A CN 2012100168107 A CN2012100168107 A CN 2012100168107A CN 201210016810 A CN201210016810 A CN 201210016810A CN 103212908 A CN103212908 A CN 103212908A
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Abstract
The invention relates to the technical field of laser micro machining and discloses a calibration method for a dead-center position of a laser spray nozzle. The calibration method comprises the following steps of S1, enabling a laser spray head to move downwards and stop moving downwards when the lowermost edge of the spray nozzle is not in contact with the surface of a stent tube; S2, respectively connecting two ends of a switch of a circuit with the spray nozzle and the stent tube; S3, continuously enabling the laser spray head to move downwards, connecting the circuit when the lower edge of the spray nozzle is just contacted with the surface of the stent tube and calibrating the initial dead-center position at the same time; and S4, enabling a laser cutting head not to descend any longer and manually or automatically adjusting the cutting head to move upwards until the cutting head reaches the required position delta. According to the method provided by the invention, the cutting head can be just contacted with the stent tube and the spray nozzle has no extrusion to the tube surface, and thus the initial dead-center position can be accurately and quickly calibrated.
Description
Technical field
The present invention relates to the laser micro-machining technology field, especially a kind of laser nozzle dead-center position scaling method.
Background technology
In angiocarpy bracket tubing Laser Micro-Machining process, the laser generator emitted laser incides in the transmission laser system, transmission laser system impinges perpendicularly on the focal beam spot of high-energy-density on the support tubing to be processed, by regulating the components and parts in the transmission laser system, the laser energy that control focuses on support tube surfaces to be processed distributes.In whole cutting process, guarantee focus and support tubing relative position constant be the essential condition that obtains stable cut quality.In the process of adjusting nozzle and support tubing optimum distance, the demarcation of reference position is a step of most critical, because original reference position is demarcated mistake, is based upon and adjusts the optimal spacing that obtains on the wrong reference position, can't reach good cut quality certainly.Optimum distance δ between nozzle and the support tubing generally learns from else's experience and tests δ=0.8mm.General adjustment is, at first the nozzle of laser cutting head adjusted to earlier with support tubing to contact just, begins to adjust as the benchmark dead-center position with this position again to obtain the δ value.How to judge that cutting head contacts just with support tubing, and nozzle can not have any extruding to tubing, be puzzlement operating personnel's a difficult problem always.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention provides a kind of method can demarcate the initial zero position accurately and fast
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of laser nozzle dead-center position scaling method, comprising:
S1: laser printhead moves downward, and when the lower edge of nozzle does not contact with the support tube surfaces, stops to move downward;
S2: the switch ends of circuit connects nozzle and support tubing respectively;
S3: continue to make laser printhead to move downward, when the nozzle lower edge contacts in a flash with the support tube surfaces just, circuit is connected, and demarcates the initial zero position this moment;
S4: laser cutting head no longer descends, and manually or automatically adjusts cutting head and moves upward up to the position of needs δ.
Wherein, the switch ends of circuit is two probes of universal meter among the described step S2, and universal meter was reported to the police when circuit was connected among the step S3.
Wherein, laser printhead moves downward by manually or automatically controlling among the step S1.
(3) beneficial effect
The laser nozzle dead-center position scaling method that technique scheme provided, comprising: S1: laser printhead moves downward, and when the lower edge of nozzle does not contact with the support tube surfaces, stops to move downward; S2: the switch ends of circuit connects nozzle and support tubing respectively; S3: continue to make laser printhead to move downward, when the nozzle lower edge contacts in a flash with the support tube surfaces just, circuit is connected, and demarcates the initial zero position this moment; S4: laser cutting head no longer descends, and manually or automatically adjusts cutting head and moves upward up to the position of needs δ.The method that the present invention proposes can be so that cutting head contacts just with support tubing, thereby and nozzle can not have any extruding to demarcate the initial zero position accurately and fast to tube surfaces.
Description of drawings
Fig. 1 is the structural representation of tubing Laser Micro-Machining equipment in the prior art;
Fig. 2 is the laser nozzle dead-center position scaling method schematic flow sheet that the embodiment of the invention provides;
Wherein, 1: linear axis; 2: rotating shaft; 3: the Z axle of adjusting; 4: cutting head; 5: nozzle.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
In conjunction with Figure 1 and Figure 2, the embodiment of the invention provides a kind of laser nozzle dead-center position scaling method, and comprising: S1: laser printhead moves downward, and when the lower edge of nozzle does not contact with the support tube surfaces, stops to move downward; S2: the switch ends of circuit connects nozzle and support tubing respectively; S3: continue to make laser printhead to move downward, when the nozzle lower edge contacts in a flash with the support tube surfaces just, circuit is connected, and demarcates the initial zero position this moment; S4: laser cutting head 4 no longer descends, and manually or automatically adjusts cutting head 4 and moves upward up to the position of needs δ.The method that the present invention proposes can be so that cutting head 4 contacts just with support tubing, thereby and nozzle can not have any extruding to demarcate the initial zero position accurately and fast to tube surfaces.
Present embodiment is preferred, and the switch ends of circuit is two probes of universal meter among the step S2, and universal meter was reported to the police when circuit was connected among the step S3.Also can select for use as indicating circuit, as have the circuit of indicator lamp, when the switch ends of circuit was connected, indicator lamp such as lighted at mode.All can have the on-off circuit of indicative function all can be suitable for two ends that connect support tubing and nozzle respectively in the embodiment of the invention.
Laser printhead moves downward by manually or automatically controlling among the step S1.
In conjunction with shown in Figure 1, present embodiment also provides the Laser Micro-Machining equipment of using above-mentioned laser nozzle dead-center position scaling method, the below of cutting cephalomotor tool device is provided with tubing to be cut, promptly has adjustable Z axle 3, but tubing is by feeding and provide the jig of rotation to fix, i.e. rotating shaft among the figure 2, described tool device is used to realize the adjusting of cutting head 4 relative tubing positions.Concrete, rotating shaft 2 clamping tubing are around the rotation of θ axle, and rotating shaft 2 is installed on the moving plate of linear axis 1 simultaneously, can do straight-line feed along X-axis and move.Laser cutting head can be along Z axle rectilinear motion, thus can regulate between the lower edge of nozzle 5 and the support tubing to be processed apart from δ.
As can be seen from the above embodiments, the laser nozzle dead-center position scaling method that the embodiment of the invention provides, comprising: S1: laser printhead moves downward, and when the lower edge of nozzle does not contact with the support tube surfaces, stops to move downward; S2: the switch ends of circuit connects nozzle and support tubing respectively; S3: continue to make laser printhead to move downward, when the nozzle lower edge contacts in a flash with the support tube surfaces just, circuit is connected, and demarcates the initial zero position this moment; S4: laser cutting head no longer descends, and manually or automatically adjusts cutting head and moves upward up to the position of needs δ.The method that the present invention proposes can be so that cutting head contacts just with support tubing, thereby and nozzle can not have any extruding to demarcate the initial zero position accurately and fast to tube surfaces.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (3)
1. a laser nozzle dead-center position scaling method is characterized in that, comprising:
S1: laser printhead moves downward, and when the lower edge of nozzle does not contact with the support tube surfaces, stops to move downward;
S2: the switch ends of circuit connects nozzle and support tubing respectively;
S3: continue to make laser printhead to move downward, when the nozzle lower edge contacts in a flash with the support tube surfaces just, circuit is connected, and demarcates the initial zero position this moment;
S4: laser cutting head no longer descends, and manually or automatically adjusts cutting head and moves upward up to the position of needs δ.
2. laser nozzle dead-center position scaling method according to claim 1 is characterized in that, the switch ends of circuit is two probes of universal meter among the described step S2, and universal meter was reported to the police when circuit was connected among the step S3.
3. laser nozzle dead-center position scaling method according to claim 1 is characterized in that, laser printhead moves downward by manually or automatically controlling among the step S1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100168107A CN103212908A (en) | 2012-01-19 | 2012-01-19 | Calibration method for dead-center position of laser spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100168107A CN103212908A (en) | 2012-01-19 | 2012-01-19 | Calibration method for dead-center position of laser spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103212908A true CN103212908A (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100168107A Pending CN103212908A (en) | 2012-01-19 | 2012-01-19 | Calibration method for dead-center position of laser spray nozzle |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008043989A (en) * | 2006-08-21 | 2008-02-28 | Omron Laserfront Inc | Laser beam machining device and laser beam machining method using the same |
| DE102007047298B3 (en) * | 2007-10-02 | 2009-04-09 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Method for determining reference focal position of a focused laser radiation guided through an opening in a nozzle body of a laser processing nozzle relative to a sheet metal, comprises cutting a section of the body by the laser radiation |
| EP2216129A1 (en) * | 2009-02-05 | 2010-08-11 | JENOPTIK Automatisierungstechnik GmbH | Laser processing head with integrated sensor device for focus position monitoring |
| CN201552383U (en) * | 2009-11-19 | 2010-08-18 | 深圳市大族激光科技股份有限公司 | Multi-head laser processing device |
| CN101823181A (en) * | 2009-03-06 | 2010-09-08 | 中国科学院沈阳自动化研究所 | Method and mechanism for quickly calibrating focal position of laser |
| CN101983420A (en) * | 2008-03-28 | 2011-03-02 | 伊雷克托科学工业股份有限公司 | Autofocus method and apparatus for wafer scribing |
| CN102179623A (en) * | 2011-04-28 | 2011-09-14 | 武汉工研光学科学技术有限责任公司 | Z axis elastic distance servo system used for laser processing |
| CN201988843U (en) * | 2011-01-31 | 2011-09-28 | 武汉凯奇特种焊接设备有限责任公司 | Defocusing amount adjusting mechanism for laser welder |
-
2012
- 2012-01-19 CN CN2012100168107A patent/CN103212908A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008043989A (en) * | 2006-08-21 | 2008-02-28 | Omron Laserfront Inc | Laser beam machining device and laser beam machining method using the same |
| DE102007047298B3 (en) * | 2007-10-02 | 2009-04-09 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Method for determining reference focal position of a focused laser radiation guided through an opening in a nozzle body of a laser processing nozzle relative to a sheet metal, comprises cutting a section of the body by the laser radiation |
| CN101983420A (en) * | 2008-03-28 | 2011-03-02 | 伊雷克托科学工业股份有限公司 | Autofocus method and apparatus for wafer scribing |
| EP2216129A1 (en) * | 2009-02-05 | 2010-08-11 | JENOPTIK Automatisierungstechnik GmbH | Laser processing head with integrated sensor device for focus position monitoring |
| CN101823181A (en) * | 2009-03-06 | 2010-09-08 | 中国科学院沈阳自动化研究所 | Method and mechanism for quickly calibrating focal position of laser |
| CN201552383U (en) * | 2009-11-19 | 2010-08-18 | 深圳市大族激光科技股份有限公司 | Multi-head laser processing device |
| CN201988843U (en) * | 2011-01-31 | 2011-09-28 | 武汉凯奇特种焊接设备有限责任公司 | Defocusing amount adjusting mechanism for laser welder |
| CN102179623A (en) * | 2011-04-28 | 2011-09-14 | 武汉工研光学科学技术有限责任公司 | Z axis elastic distance servo system used for laser processing |
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Application publication date: 20130724 |