CN101176947B - Laser cutting machine tool and cutting head for laser cutting machine tool - Google Patents
Laser cutting machine tool and cutting head for laser cutting machine tool Download PDFInfo
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- CN101176947B CN101176947B CN 200610063566 CN200610063566A CN101176947B CN 101176947 B CN101176947 B CN 101176947B CN 200610063566 CN200610063566 CN 200610063566 CN 200610063566 A CN200610063566 A CN 200610063566A CN 101176947 B CN101176947 B CN 101176947B
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- cutting head
- mirror chamber
- chamber box
- box
- cutting
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Abstract
The invention relates to a laser cutting machine and a cutting head for the laser cutting machine; wherein, the cutting head comprises a binding mechanism for servo transmission mechanism used to connect the laser cutting machine, a mirror cavity box connected with the binding mechanism used to accommodate the focusing lens, and a cutting mouth connected with the mirror cavity box; the cutting head also comprises a capacitance sensor inducted the capacitance value between the cutting head and cutting workpiece. With the structure, the invention has the advantages of utilizing the capacitance value of the plate capacitor composed of a capacitance sensor induction cutting mouth and a cut workpiece, and controling the servo transmission mechanism of the cutting machine based on the capacitance value, thus the follow-up of the cutting mouth (lens focal point) with respect to the cut workpiece is achieved.
Description
[technical field]
The present invention relates to a kind of laser cutting machine, more specifically relate to a kind of cutting head that is used for laser cutting machine.
[background technology]
In recent years, laser cutting machine is widely used in the cutting process of various materials, but the structure of the existing employed cutting head of laser cutting machine is simple relatively.In cutting process, can't detect condenser lens focus and the relative distance that is cut between the workpiece, cause when being cut material web than big or surface undulation, cut surface is of poor quality, and cutting speed is low, even can't cut at all.In addition, in existing cutting head cooling device is not set, condenser lens is easily because overheated and burn.
[summary of the invention]
Laser cutting machine can't and be cut the technical problem that the relative distance between the workpiece detects to the condenser lens focus in the prior art in order to solve.The invention provides and a kind ofly determine condenser lens focus and the laser cutting machine that is cut the cutting head of the relative distance between the workpiece and uses this cutting head by the capacitive sensing mode.In addition, the present invention has further solved cooling device, the technical problem that condenser lens burns easily has not been set in the existing cutting head.
The present invention solves laser cutting machine in the prior art can't be to the condenser lens focus and be cut the technical scheme that technical problem adopted that the relative distance between the workpiece detects and be: a kind of laser cutting machine tool cutting head is provided, and this cutting head comprises: the bindiny mechanism that is used to connect the servo-operated mechanism of laser cutting machine; The mirror chamber box that is used to hold condenser lens that is connected with bindiny mechanism; And the cutting head that is connected with mirror chamber box, wherein cutting head further comprises the capacitance sensor of responding to cutting head and being cut capacitance between the workpiece.
According to one preferred embodiment of the present invention, the sidewall of mirror chamber box is provided with opening, and condenser lens is arranged on and can be inserted in the extraction-type mirror chamber in the box of mirror chamber by opening.
According to one preferred embodiment of the present invention, the sidewall in the mirror chamber adjustment screw that is provided with mirror chamber handle and is used to regulate the concentricity between the optical axis of condenser lens and cutting head.
According to one preferred embodiment of the present invention, the sidewall of mirror chamber box is provided with and is communicated to the cutting assist gas passage of mirror chamber near cutting head one side.
According to one preferred embodiment of the present invention, the sidewall of mirror chamber box is provided with and is communicated to the cooled gas path of mirror chamber near bindiny mechanism's one side.
According to one preferred embodiment of the present invention, cutting head further comprises the adjustable diameter and screw adjusting mechanism that is used to the focus and the relative distance between the cutting head that connect mirror chamber box and cutting head and regulate condenser lens.
According to one preferred embodiment of the present invention, adjustable diameter and screw adjusting mechanism comprises: with the locking nut of the outer surface thread of mirror chamber box engagement; With the focusing nut of the outer surface thread of locking nut engagement, the focusing sliding sleeve of fixedlying connected and in the box of mirror chamber, extending vertically with the focusing nut; Be arranged on a pair of taper swelling cover between the inner surface of focusing outer surface of sliding sleeve and mirror chamber box; And be arranged on guide pad on the inner surface of mirror chamber box, when the relative mirror of locking nut chamber box rotated, guide pad effect taper swelling cover was to relative motion vertically and locking focusing sliding sleeve and mirror chamber box thus.
According to one preferred embodiment of the present invention, capacitance sensor is arranged between adjustable diameter and screw adjusting mechanism and the cutting head.
According to one preferred embodiment of the present invention, being cut workpiece is metal works.
The present invention solves laser cutting machine in the prior art and can't and be cut another technical scheme that technical problem adopted that the relative distance between the workpiece detects to the condenser lens focus and be: a kind of laser cutting machine is provided, and this laser cutting machine comprises: the laser generator that is used to generate the predetermined wavelength laser beam; The cutting head that is used for focussed laser beam; Be used for being cut relatively the servo-operated mechanism of workpiece transmission cutting head; And the control module that is used to control servo-operated mechanism; This cutting head comprises the bindiny mechanism that is used to connect servo-operated mechanism; The mirror chamber box that is used to hold condenser lens that is connected with bindiny mechanism; And the cutting head that is connected with mirror chamber box, wherein cutting head further comprises the capacitance sensor of responding to cutting head and being cut capacitance between the workpiece, control module serves as a basis control servo-operated mechanism with this capacitance.
By adopting said structure, utilize capacitance sensor induction cutting head and be cut the capacitance of the board-like electric capacity that workpiece forms, and be the servo-operated mechanism of basis control laser cutting machine with the capacitance, realize that cutting head (lens focus) is cut the servo-actuated of surface of the work relatively.
[description of drawings]
Fig. 1 is the cut-away section schematic diagram of laser cutting machine tool cutting head of the present invention;
Fig. 2 is the vertical view of the mirror chamber box of laser cutting machine tool cutting head of the present invention;
Fig. 3 is used to show the mirror chamber box of cooled gas path and the generalized section of sealing ring.
[specific embodiment]
The present invention is described in detail below in conjunction with drawings and Examples.
As shown in Figure 1-Figure 3, laser cutting machine tool cutting head of the present invention 1 is a hollow cylindrical structure substantially, it comprise the servo-operated mechanism (not shown) that is used to be connected to laser cutting machine bindiny mechanism 11, be connected with bindiny mechanism 11 be used to hold the mirror chamber box 13 of condenser lens 12 and the cutting head 14 that is connected with mirror chamber box 13.In the present embodiment, cutting head 1 further is provided with and is used to the capacitance sensor 15 responding to cutting head 14 and be cut capacitance between the workpiece (not shown).
In the present embodiment, bindiny mechanism 11 is an adpting flange, and it is connected on the Z axle pallet of laser cutting machine.Be provided with sealing ring 20 between mirror chamber box 13 and the connecting elements 11, guarantee the air-tightness of device.The sidewall of mirror chamber box 13 also further is provided with opening 131.Condenser lens 12 is arranged in the extraction-type mirror chamber 16, by eyeglass pressure ring and sealing ring or suitably fixed mechanism locking.The sidewall in mirror chamber 16 is provided with mirror chamber handle 161, and the user can radially be inserted into mirror chamber 16 in the mirror chamber box 13 or taking-up mirror chamber 16 from mirror chamber box 13 by mirror chamber handle 161.In addition, also further be provided with adjustment screw 162 on the sidewall in mirror chamber 16, so that the concentricity between the optical axis of adjusting condenser lens 12 and cutting head 1.Thereby after laser instrument was opened, laser beam was focused the below that lens 12 focus to cutting head 14.
In addition, cutting head 1 is in the adjustable diameter and screw adjusting mechanism 17 that further is provided with the relative distance between the focus that is used to regulate cutting head 14 and condenser lens 12 between mirror chamber box 13 and the cutting head 14.In the adjustable diameter and screw adjusting mechanism 17 of present embodiment, locking nut 171 meshes with the outer surface thread of mirror chamber box 13, and focusing nut 172 meshes with the outer surface thread of locking nut 171.The focusing sliding sleeve of being made up of first sliding sleeve 173 and second sliding sleeve 174 is fixedlyed connected with focusing nut 172 and is extended vertically in box 13 inside, mirror chamber.Between the inner surface of the outer surface of first sliding sleeve 173 and second sliding sleeve 174 and mirror chamber box 13, be provided with a pair of taper swelling cover 175,176.And the inner surface of mirror chamber box 13 is provided with the guide pad 178 that is used to act on 175,176 relative motions vertically of taper swelling cover.In use, focus nut 172 and fixing with it focusing sliding sleeve are rotated to the appropriate location of locking nut 171, relative then mirror chamber box 13 rotational lock nuts 171, guide pad 178 effect taper swelling covers 175,176 are moved axially relatively, taper swelling cover 175,176 radial compression, first sliding sleeve 173 and the outer surface of second sliding sleeve 174 and the inner surface of mirror chamber box 13 are realized the locking of focusing nut 172 thus.When needs are regulated the relative distance of cutting head 14 and lens focus, unclamp locking nut 171, then guide pad 178 at effect swelling cover 175,176, do not regulate by focusing nut 172 locking nut 171 relatively.Adjusting finishes, and screws locking nut 171, and focusing nut 172 is locked.
In the present embodiment, connect first sliding sleeve 173 on the capacitance sensor 15, connect cutting head 14 down.The effect of capacitance sensor 15 is induction cutting head 14 and the capacitance that is cut metal works or board-like electric capacity that other suitable workpiece constitute.This capacitance is input to control module (not shown), and control module realizes thus that according to the variation control servo-operated mechanism of capacitance cutting head 14 (focus of condenser lens 12) is with respect to the servo-actuated that is cut the metal works surface.
Be provided with the cooled gas path 132 that is communicated to mirror chamber 16 close bindiny mechanisms 11 1 sides at mirror chamber box 13 sidewalls.In the present embodiment, refrigerating gas is input to 16 tops, mirror chamber through cooled gas path 132 and the gas passage that is arranged on the sealing ring 20, and the optical module (condenser lens 12) in the cutting head 1 is cooled off.
Be provided with the cutting assist gas passage 133 that is communicated to mirror chamber 16 relative cutting head 14 1 sides at mirror chamber box 13 sidewalls.The cutting assist gas is in cutting assist gas passage 133 is input to the chamber of cutting head 1 and through cutting head 14 outputs.The cutting assist gas can comprise oxygen, purge gas that is used to quicken the cut workpiece oxidation and the inert gas that shields.
In addition, the present invention further provides a kind of laser cutting machine that adopts cutting head as described above.This laser cutting machine may further include: the laser generator that is used to generate the predetermined wavelength laser beam; Be used for being cut relatively the servo-operated mechanism of workpiece transmission cutting head; And the control module that is used to control servo-operated mechanism, the cutting head that this control module is responded to according to the capacitance sensor on the cutting head and be cut capacitance control servo-operated mechanism between the workpiece realizes that thus cutting head (lens focus) is cut the servo-actuated of surface of the work relatively.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art can design various embodiments according to different actual needs under the situation of the scope and spirit that do not break away from the present invention and protected.
Claims (8)
1. laser cutting machine tool cutting head, described cutting head comprises:
Be used to connect the bindiny mechanism of the servo-operated mechanism of laser cutting machine;
The mirror chamber box that is used to hold condenser lens that is connected with described bindiny mechanism; And
The cutting head that is connected with described mirror chamber box,
It is characterized in that: described cutting head further comprises the described cutting head of induction and is cut the capacitance sensor of capacitance between the workpiece; Described cutting head further comprises the adjustable diameter and screw adjusting mechanism that is used to the focus and the relative distance between the described cutting head that connect described mirror chamber box and described cutting head and regulate described condenser lens, and described adjustable diameter and screw adjusting mechanism comprises: with the locking nut of the outer surface thread engagement of described mirror chamber box; With the focusing nut of the outer surface thread of described locking nut engagement, the focusing sliding sleeve of fixedlying connected and in the box of described mirror chamber, extending vertically with described focusing nut; Be arranged on a pair of taper swelling cover between the inner surface of the outer surface of described focusing sliding sleeve and described mirror chamber box; And be arranged on guide pad on the inner surface of described mirror chamber box, when the described relatively mirror of described locking nut chamber box rotated, the described taper swelling of described guide pad effect cover was to relative motion vertically and lock described focusing sliding sleeve and described mirror chamber box thus.
2. cutting head according to claim 1 is characterized in that: the sidewall of described mirror chamber box is provided with opening, and described condenser lens is arranged on and can be inserted in the extraction-type mirror chamber in the box of described mirror chamber by described opening.
3. cutting head according to claim 2 is characterized in that: the adjustment screw that the sidewall in described mirror chamber is provided with mirror chamber handle and is used to regulate the concentricity between the optical axis of described condenser lens and described cutting head.
4. cutting head according to claim 3 is characterized in that: the sidewall of described mirror chamber box is provided with and is communicated to the cutting assist gas passage of described mirror chamber near described cutting head one side.
5. according to claim 2,3 or 4 described cutting heads, it is characterized in that: the sidewall of described mirror chamber box is provided with and is communicated to the cooled gas path of described mirror chamber near described bindiny mechanism one side.
6. cutting head according to claim 1 is characterized in that: described capacitance sensor is arranged between described adjustable diameter and screw adjusting mechanism and the described cutting head.
7. cutting head according to claim 1 is characterized in that: the described workpiece that is cut is a metal works.
8. laser cutting machine, described laser cutting machine comprises:
Be used to generate the laser generator of predetermined wavelength laser beam;
Be used to focus on the cutting head of described laser beam;
Be used for being cut relatively the servo-operated mechanism of the described cutting head of workpiece transmission; And
Be used to control the control module of described servo-operated mechanism; Wherein said cutting head comprises the bindiny mechanism that is used to connect described servo-operated mechanism; The mirror chamber box that is used to hold condenser lens that is connected with described bindiny mechanism; And the cutting head that is connected with described mirror chamber box,
It is characterized in that: described cutting head further comprises described cutting head of induction and the described capacitance sensor that is cut capacitance between the workpiece, and described control module serves as the described servo-operated mechanism of basis control with described capacitance; Described cutting head further comprises the adjustable diameter and screw adjusting mechanism that is used to the focus and the relative distance between the described cutting head that connect described mirror chamber box and described cutting head and regulate described condenser lens, and described adjustable diameter and screw adjusting mechanism comprises: with the locking nut of the outer surface thread engagement of described mirror chamber box; With the focusing nut of the outer surface thread of described locking nut engagement, the focusing sliding sleeve of fixedlying connected and in the box of described mirror chamber, extending vertically with described focusing nut; Be arranged on a pair of taper swelling cover between the inner surface of the outer surface of described focusing sliding sleeve and described mirror chamber box; And be arranged on guide pad on the inner surface of described mirror chamber box, when the described relatively mirror of described locking nut chamber box rotated, the described taper swelling of described guide pad effect cover was to relative motion vertically and lock described focusing sliding sleeve and described mirror chamber box thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610063566 CN101176947B (en) | 2006-11-09 | 2006-11-09 | Laser cutting machine tool and cutting head for laser cutting machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610063566 CN101176947B (en) | 2006-11-09 | 2006-11-09 | Laser cutting machine tool and cutting head for laser cutting machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101176947A CN101176947A (en) | 2008-05-14 |
| CN101176947B true CN101176947B (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610063566 Expired - Fee Related CN101176947B (en) | 2006-11-09 | 2006-11-09 | Laser cutting machine tool and cutting head for laser cutting machine tool |
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| CN (1) | CN101176947B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357737A (en) * | 2011-11-21 | 2012-02-22 | 句容市大华激光科技开发有限公司 | Cutting laser head |
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| CN101804519B (en) * | 2010-03-18 | 2013-05-29 | 张文武 | Laser processing head |
| CN102205466B (en) * | 2010-03-31 | 2014-11-26 | 杨贺来 | Method and device for processing combined slotted screen tube |
| CN102430863B (en) * | 2011-10-19 | 2015-04-01 | 哈尔滨工业大学 | Laser cutting head displacement sensor with multi-point measurement function |
| CN103084738B (en) * | 2011-11-01 | 2015-01-14 | 机械科学研究院哈尔滨焊接研究所 | Underwater laser cutter adaptable to water 50 meters deep |
| CN102500920B (en) * | 2011-11-17 | 2014-08-27 | 奇瑞汽车股份有限公司 | Cutting head |
| CN102513703B (en) * | 2011-11-22 | 2014-11-26 | 无锡庆源激光科技有限公司 | Laser cutting air blowing spray head |
| CN103212789A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Contact-type cutting head with stable focus position |
| CN105290399B (en) * | 2014-07-08 | 2017-12-29 | 大族激光科技产业集团股份有限公司 | Powder feeding mechanism |
| CN104722929B (en) * | 2015-03-31 | 2016-08-24 | 纽敦光电科技（上海）有限公司 | A kind of laser cutting head |
| CN106735940A (en) * | 2017-02-24 | 2017-05-31 | 广东正业科技股份有限公司 | Laser cutting machine |
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| CN2097057U (en) * | 1991-06-24 | 1992-02-26 | 华中理工大学 | Laser head with integrated jet and capacitor sensor |
| CN2108601U (en) * | 1991-12-25 | 1992-07-01 | 华中理工大学 | Auxiliary air cooling apparatus of lens laser working machine |
| CN2436708Y (en) * | 2000-05-31 | 2001-06-27 | 赵祥连 | Axle hole gap locking structure |
| CN2701571Y (en) * | 2004-06-11 | 2005-05-25 | 上海团结百超数控激光设备有限公司 | Buffering laser cutting head |
| CN2767043Y (en) * | 2004-12-16 | 2006-03-29 | 武汉楚天激光（集团）股份有限公司 | Laser cutting machine |
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2006
- 2006-11-09 CN CN 200610063566 patent/CN101176947B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097057U (en) * | 1991-06-24 | 1992-02-26 | 华中理工大学 | Laser head with integrated jet and capacitor sensor |
| CN2108601U (en) * | 1991-12-25 | 1992-07-01 | 华中理工大学 | Auxiliary air cooling apparatus of lens laser working machine |
| CN2436708Y (en) * | 2000-05-31 | 2001-06-27 | 赵祥连 | Axle hole gap locking structure |
| CN2701571Y (en) * | 2004-06-11 | 2005-05-25 | 上海团结百超数控激光设备有限公司 | Buffering laser cutting head |
| CN2767043Y (en) * | 2004-12-16 | 2006-03-29 | 武汉楚天激光（集团）股份有限公司 | Laser cutting machine |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357737A (en) * | 2011-11-21 | 2012-02-22 | 句容市大华激光科技开发有限公司 | Cutting laser head |
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| CN101176947A (en) | 2008-05-14 |
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