CN201385185Y - External optical path aplanatism system of laser cutting machine - Google Patents

External optical path aplanatism system of laser cutting machine Download PDF

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Publication number
CN201385185Y
CN201385185Y CN 200920023770 CN200920023770U CN201385185Y CN 201385185 Y CN201385185 Y CN 201385185Y CN 200920023770 CN200920023770 CN 200920023770 CN 200920023770 U CN200920023770 U CN 200920023770U CN 201385185 Y CN201385185 Y CN 201385185Y
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CN
China
Prior art keywords
axis
speculum
laser
cutting
slide plate
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Expired - Fee Related
Application number
CN 200920023770
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Chinese (zh)
Inventor
赵剑
黄兴义
夏小川
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QINGDAO CREATION LASER EQUIPMENT CO Ltd
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QINGDAO CREATION LASER EQUIPMENT CO Ltd
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Priority to CN 200920023770 priority Critical patent/CN201385185Y/en
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Publication of CN201385185Y publication Critical patent/CN201385185Y/en
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Abstract

The utility model relates to an external optical path aplanatism system of a laser cutting machine. The external optical path aplanatism system comprises a laser generator, a reflecting mirror, an optical compensation mechanism, a moving beam, a linear ball bearing guide rail, a sliding block, an X-axis servo motor, an X-axis ball bearing screw rod, a Y-axis servo motor, a Y-axis ball bearing screw rod, a Y-axis sliding plate, a focusing mirror, a cutting head and a numerical control system and is characterized in that an external optical path part between the laser generator and the cutting head is provided with the optical compensation mechanism; the moving beam and the Y-axis sliding plate can respectively do linear compensation motion long the X axis and the Y axis under the control of the numerical control system; and the optical compensation mechanism can do synchronous motion with along the X-axis direction under the motion of the numerical control system along with the moving beam and the Y-axis sliding plate. The external optical path aplanatism system is the optical path with the numerical control compensation function; when in cutting, the optical length at any position in the cutting area is constant; when in cutting, the cutting spot diameter is constant; therefore, the laser beam quality is stable, the cutting speed is fast, and the cutting efficiency of a laser processor is improved.

Description

The outer light path aplanatism system of laser cutting machine
Technical field
The present invention relates to laser cutting machine, particularly the outside optical system of laser cutting machine.
Background technology
The application of Laser Processing cutting technique starts from early 1970s, laser cutting machine be laser that laser instrument is produced as a kind of cutter by outer light path light-conducting system, cause plate surface, sheet material is cut and welds.Because its cutting end face quality is good, speed is fast, precision is high, the efficient advantages of higher, has obtained extensive use in multiple industry.
The form of the outside optical system of existing laser cutting machine, mainly be divided into fixed light path, mixed optical path and simple flight light path, the laser cutting machine working forms of fixed light path is that cutting head is motionless, workpiece is placed on the vertical double-deck slide unit, X along with slide unit, the interpolation of Y diaxon realizes the cutting of the arbitrary shape of workpiece; The laser cutting machine working forms of mixed optical path is that cutting head is removable, and workpiece is placed on the slide unit of X-axis motion, along with motion slide unit and cutting head, realizes the interpolation of diaxon, thereby realizes the cutting of the arbitrary shape of workpiece.But owing to the cutting machine of these two kinds of light channel structure forms adopts workpiece along with the motion of workbench is moved, the inertia of load is big, so can not high-speed cutting, inefficiency.And simple flight light path can realize that workpiece is motionless, and cutting head moves, and satisfies the cutting of workpiece arbitrary shape, but because the light path in the cutting area optional position all changes, spot diameter changes all the time, so the beam quality instability.
Summary of the invention
The outer light path aplanatism system that the purpose of this invention is to provide a kind of laser cutting machine, this outer light path aplanatism system is the outer light path of band light path numerical control compensate function, light path in the cutting area optional position during cutting all is constant, the cutting spot diameter is constant all the time during cutting, therefore laser beam quality is stable, cutting speed is fast, improves the cutting efficiency of laser machine.
The objective of the invention is to be achieved through the following technical solutions: the outer light path aplanatism system of laser cutting machine, comprise laser generator, speculum, optical compensation mechanism, moving beam, straight ball-guide, slide block, the X-axis servomotor, the X-axis ball screw, the Y-axis servomotor, the Y-axis ball screw, the Y-axis slide plate, focus lamp, cutting head and digital control system, it is characterized in that the outer light path part between laser generator and cutting head, optical compensation mechanism is set, moving beam and Y-axis slide plate carry out straight line respectively on digital control system control lower edge X-axis and Y-axis, moving interpolation, optical compensation mechanism does being synchronized with the movement along X-direction in digital control system control with the motion of moving beam and Y-axis slide plate.
Said speculum in the technique scheme, comprise five speculums that laser generator is provided with on the outer light path between the cutting head, wherein first speculum is fixed on the Liang Tishang with the laser generator parallel position, second speculum and the 3rd speculum are fixed in the optical compensation mechanism that moves in the X-axis direction, the 4th speculum is installed on the moving beam that moves along X-axis, the 5th speculum is fixed on the Y-axis slide plate that moves along Y direction with cutting head, and laser beam is reflexed to focus lamp on the cutting head.
Said optical compensation mechanism in the technique scheme, comprise slide plate, second speculum, the 3rd speculum, servomotor, ball screw, guide rail and slide block, second speculum and the 3rd speculum are fixed on the slide plate, and the driven by servomotor ball screw drives slide plate and moves in the X-axis direction on guide rail by slide block under the control of digital control system.
Said moving beam in the technique scheme is fixed on the slide block, and by the control of digital control system, X-direction is moved on straight ball-guide in the driving lower edge of X-axis servomotor.
Said Y-axis slide plate in the technique scheme, be fixed on the slide block, by the control of digital control system, Y direction is moved on straight ball-guide in the driving lower edge of Y-axis servomotor, cutting head is installed on the Y-axis slide plate, can move up and down again along the Y-axis slide plate simultaneously.
The basic ideas of technique scheme are: digital control system control X-axis servomotor and Y-axis driven by servomotor moving beam and Y-axis slide plate are done corresponding motion on straight ball-guide, simultaneously digital control system is again according to the Position Control optical compensation mechanism of X-axis and the Y-axis continuous forward-reverse of motion with moving beam and Y-axis slide plate, the total optical path that the laser beam that the interior arbitrary position of cutting zone is sent from laser generator reflexes to focus lamp arrival cutting head is constant, and the beam diameter of any point all is consistent.
Advantage of the present invention is: one, compensation precision height, and response is fast; Two, cutting parameter is stable, and cut quality is stable; Three, improve its cutting power, give full play to the performance of laser instrument; Four, the operator to adjust cutting technique simple.
Description of drawings
Fig. 1 is the structural representation of the light channel structure of laser cutting machine of the present invention.
Fig. 2 is the fundamental diagram (light path of any point of near point) of the light channel structure of laser cutting machine of the present invention.
Fig. 3 is the fundamental diagram (light path of any point of far point) of the light channel structure of laser cutting machine of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
The outer light path aplanatism system of this laser cutting machine comprises laser generator (1), first speculum (2), optical compensation mechanism (3), moving beam (4), the 4th speculum (5), the 5th speculum (6), focus lamp (7), cutting head (8), straight ball-guide (9), slide block (10), X-axis servomotor (11), X-axis ball screw (12), Y-axis servomotor (13), Y-axis ball screw (14), Y-axis slide plate (15) and digital control system (16) as shown in Figure 1.The optical compensation mechanism (3) of this system comprises slide plate (17), second speculum (18), the 3rd speculum (19), servomotor (20), ball screw (21), guide rail (22) and slide block (23).
The outer light path aplanatism system specific embodiment of this laser cutting machine is, laser generator (1) is installed on the laser cutting machine lathe or fixes on the ground, first speculum (2) is fixed on and the parallel position of laser generator (1), when cutting, digital control system (16) control X-axis servomotor (11) drives X-axis ball screw (12) motion makes moving beam (4) upward locate in X-direction at straight ball-guide (9), Y-axis servomotor (13) drives Y-axis ball screw (14) motion makes Y-axis slide plate (15) locate in Y direction, digital control system (16) according to moving beam (4) and Y-axis slide plate (15) at X, the position of Y diaxon, operational order is sent to optical compensation mechanism (3), the slide plate (17) that second speculum (18) of optical compensation mechanism (3) and the 3rd speculum (19) are fixed drives under ball screw (21) driving at servomotor (20) and upward locatees in X-direction at guide rail (22), laser generator (1) gives off laser beam and shines on first speculum (2), laser beam reflexes to second speculum (18) and reflexes to the 3rd speculum (19) again from first speculum (2) along X-direction, the 3rd speculum (19) reflexes to the 4th speculum (5) with laser beam along X-direction, the 4th speculum (5) is fixed on the termination of moving beam (4), the 4th speculum (5) reflexes to laser beam along the 5th speculum (6) on the mobile Y-axis slide plate (15) of moving beam (4) along Y direction, laser beam reflexes on the focus lamp (7) on the cutting head (8) by the 5th speculum (6), realizes cutting processing by focusing on.The total optical path length of whole optical path is A+B+C, and this value is steady state value.
Fig. 2 is the fundamental diagram of light channel structure of the present invention, and when the work of any point of cutting head (8) near point, at this moment the laser beam that sends of laser generator (1) shines on second speculum (18) by first speculum (2), apart from being X 1, second speculum (18) reflexes to the 3rd speculum (19) with laser beam, and distance is H, and the 3rd speculum (19) reflexes to the 4th speculum (5) with laser beam, and distance is X 2, the 4th speculum (5) reflexes to the 5th speculum (6) with laser beam, and distance is Y 1, because H is a fixed value, the optical path length of this moment is X 1+ X 2+ Y 1Sum.
Fig. 3 is the fundamental diagram of light channel structure of the present invention, and when any point work of cutting head (8) far point, the laser beam that laser generator (1) sends shines on second speculum (18) by first speculum (2), and distance is X 3, second speculum (18) reflexes to the 3rd speculum (19) with laser beam, and distance is H, and the 3rd speculum (19) reflexes to the 4th speculum (5) with laser beam, and distance is X 4, the 4th speculum (5) reflexes to the 5th speculum (6) with laser beam, and distance is Y 2, the optical path length of this moment is X 3+ X 4+ Y 2Sum.
The optical path length of whole optical path is A+B+C, and this value is steady state value, so X 1+ X 2+ Y 1=X 3+ X 4+ Y 2So no matter how moving beam (4) and Y-axis slide plate (15) move, optical compensation mechanism (3) can be in the X-direction location under digital control system (16) control, and from the laser beam that laser generator (1) sends, the beam diameter of any point all is consistent in cutting zone.

Claims (5)

1, the outer light path aplanatism system of laser cutting machine, comprise laser generator, speculum, optical compensation mechanism, moving beam, straight ball-guide, slide block, the X-axis servomotor, the X-axis ball screw, the Y-axis servomotor, the Y-axis ball screw, the Y-axis slide plate, focus lamp, cutting head and digital control system, it is characterized in that the outer light path part between laser generator and cutting head, optical compensation mechanism is set, moving beam and Y-axis slide plate carry out straight line respectively on digital control system control lower edge X-axis and Y-axis, moving interpolation, optical compensation mechanism does being synchronized with the movement along X-direction in digital control system control with the motion of moving beam and Y-axis slide plate.
2, the outer light path aplanatism system of laser cutting machine according to claim 1, it is characterized in that speculum comprises five speculums that laser generator is provided with on the outer light path between the cutting head, wherein first speculum is fixed on the Liang Tishang with the laser generator parallel position, second speculum and the 3rd speculum are fixed in the optical compensation mechanism that moves in the X-axis direction, the 4th speculum is installed on the moving beam that moves along X-axis, and the 5th speculum is fixed on the Y-axis slide plate that moves along Y direction with cutting head.
3, the outer light path aplanatism system of laser cutting machine according to claim 1, it is characterized in that optical compensation mechanism comprises slide plate, second speculum, the 3rd speculum, servomotor, ball screw, guide rail and slide block, second speculum and the 3rd speculum are fixed on the slide plate, and the driven by servomotor ball screw drives slide plate and moves in the X-axis direction on guide rail by slide block under the control of digital control system.
4, the outer light path aplanatism system of laser cutting machine according to claim 1 is characterized in that moving beam is fixed on the slide block, and by the control of digital control system, X-direction is moved on straight ball-guide in the driving lower edge of X-axis servomotor.
5, the outer light path aplanatism system of laser cutting machine according to claim 1, it is characterized in that the Y-axis slide plate, be fixed on the slide block, control by digital control system, Y direction is moved on straight ball-guide in the driving lower edge of Y-axis servomotor, cutting head is installed on the Y-axis slide plate, can move up and down again along the Y-axis slide plate simultaneously.
CN 200920023770 2009-03-15 2009-03-15 External optical path aplanatism system of laser cutting machine Expired - Fee Related CN201385185Y (en)

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Application Number Priority Date Filing Date Title
CN 200920023770 CN201385185Y (en) 2009-03-15 2009-03-15 External optical path aplanatism system of laser cutting machine

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Application Number Priority Date Filing Date Title
CN 200920023770 CN201385185Y (en) 2009-03-15 2009-03-15 External optical path aplanatism system of laser cutting machine

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101927403A (en) * 2010-08-02 2010-12-29 东阳市双燕设备有限公司 Constant flying-optics laser cutting machine
CN102554464A (en) * 2010-12-21 2012-07-11 上海团结普瑞玛激光设备有限公司 Full-stroke laser path compensating device of laser cutting machine
CN103212835A (en) * 2012-01-19 2013-07-24 昆山思拓机器有限公司 Method for laser wet cutting and detecting of SMT (Surface Mounting Technology) template
CN106112259A (en) * 2016-08-26 2016-11-16 江苏亚威机床股份有限公司 A kind of cross beam of laser cutting machine Z axis ultralong-stroke structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101927403A (en) * 2010-08-02 2010-12-29 东阳市双燕设备有限公司 Constant flying-optics laser cutting machine
CN102554464A (en) * 2010-12-21 2012-07-11 上海团结普瑞玛激光设备有限公司 Full-stroke laser path compensating device of laser cutting machine
CN103212835A (en) * 2012-01-19 2013-07-24 昆山思拓机器有限公司 Method for laser wet cutting and detecting of SMT (Surface Mounting Technology) template
CN103212835B (en) * 2012-01-19 2016-07-06 昆山思拓机器有限公司 SMT template laser wet cutting and detection method
CN106112259A (en) * 2016-08-26 2016-11-16 江苏亚威机床股份有限公司 A kind of cross beam of laser cutting machine Z axis ultralong-stroke structure

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20100120

Termination date: 20170315