CN204504506U - A kind of laser cutting head with oscillating function - Google Patents
A kind of laser cutting head with oscillating function Download PDFInfo
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- CN204504506U CN204504506U CN201520169536.6U CN201520169536U CN204504506U CN 204504506 U CN204504506 U CN 204504506U CN 201520169536 U CN201520169536 U CN 201520169536U CN 204504506 U CN204504506 U CN 204504506U
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Abstract
The utility model discloses a kind of laser cutting head with oscillating function, it comprises wobble component and support and provides the fixation kit of driving force to wobble component, and wobble component comprises: the first connector, the deformable curvature mirrors be arranged in the first connector, be fixed on the first connector lower end focus lamp, be arranged at the capacitance sensor of focus lamp lower end and be arranged on the nozzle of capacitance sensor lower end; Fixation kit comprises the second connector, the spring bearing be connected on the second connector, the gear-box be connected with spring bearing and the servomotor that is connected with gear-box, gear-box connects wobble component, and the moment of torsion that servomotor exports by gear-box amplifies the gyration being converted to and driving wobble component to swing.The cutting head that this cutting head can complete in laser cutting process fast and accurately swings drift angle needs, possesses higher transmission accuracy and transmission rigidity simultaneously, makes its moment in action keep track accurate.
Description
Technical field
The utility model belongs to laser cutting field, is specifically related to a kind of laser cutting head with oscillating function.
Background technology
Laser cutting is as a kind of processing technology of comparative maturity, be widely used in the middle of various metal-working industry, the advantage such as high by means of its flexibility degree, working (machining) efficiency is high, integrated cost is low, precision is high, heat affected area is little becomes an indispensable procedure.And along with its processing object is from two dimensional surface to the expansion of even carved punched of uiform section section bar, the key component cutting head of Laser Processing equipment also experiences and starts to be subdivided into several classification of 2D/2.5D/3D.
In present laser cutting field, usually use and swing cutting head, the key point swinging cutting head is how to realize oscillating function, original way is the pivot angle manually adjusting cutting head, conventional Serve Motor Control cutting head at present, Serve Motor Control cutting head mainly contains following form: one is use the repacking of 2D cutting head, and two is use direct-drive motor, and three is use servomotor.
Wherein, use the form of 2D cutting head repacking, it is outer light path design, and due to mechanical movement axis and laser beam axis disalignment, part integrated level is low, volume is large, the scope swung is subject to the restriction of own dimensions, and because its axis of rotation and centroid offset are very large, its speed of moving, precision, response are all poor, belong to the simplest and easy original one and swing cutting head, because its poor-performing is tending towards superseded.
The difference of the second and the third mainly type of drive, current direct-drive motor occupies main flow, direct-drive motor mainly contains without driving-chain, precision is high, action is fast advantage, but its shortcoming also clearly: 1, direct-drive motor dynamic stiffiness is low, accuracy of action is easy to by the change of load or External force interference, and impact cutting; 2, system damping is than low, easily causes resonance; 3, comparatively greatly, power consumption is high in heating, and for the parts that this sealing requirements of laser cutting head is very high, heat radiation intelligence leans on the mode of hot transmission, the easy temperature alarm when high strength heavy duty continuous operation; 4, price is very expensive, and the cost bought and keep in repair is very high; 5, maintenance is not easy to, direct driving motor must make laser bore a hole from its centre bore, encoder as its position feedback elements must select the Circular gratings of diameter hollow formula accordingly, this element is expensive, and it is easily impaired, and this elements into intimate to be embedded in cutting head frame for movement inner, need during replacing thoroughly to disassemble, not easily maintain and replace.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of swing type adjustable laser cutting head scheme, this cutting head can complete cutting head in laser cutting process fast and accurately and swing drift angle and need (stroke can reach ± 120 °), possess higher transmission accuracy and transmission rigidity simultaneously, its moment in action is made to keep track accurate, and possess autozoom function, focal position can be changed in real time, without the need to manual adjustment in perforation and cutting process.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of laser cutting head with oscillating function, it comprises wobble component and support and provides the fixation kit of driving force to described wobble component, described wobble component comprises: the first connector, be arranged on the deformable curvature mirrors in described first connector, be fixed on the focus lamp of described first connector lower end, be arranged at the capacitance sensor of described focus lamp lower end and be arranged on the nozzle of described capacitance sensor lower end, described fixation kit comprises the second connector, be connected to the spring bearing on described second connector, the gear-box be connected with described spring bearing, and the servomotor to be connected with described gear-box, described gear-box connects described wobble component, the moment of torsion that described servomotor exports by described gear-box amplifies the gyration being converted to and driving described wobble component to swing.
In a preferred embodiment of the present utility model, comprise further, described gear-box and described spring bearing outer ring are fixed, described gear-box inside comprises driving gear and driven gear, described driving gear is connected with the output shaft of described servomotor, and the moment of torsion of described servomotor is passed to described driven gear by described driving gear; Described driven gear comprises two plate gears, and gear described in two panels is connected with the inner ring of described spring bearing respectively.
In a preferred embodiment of the present utility model, comprise further, described servomotor is the servomotor of band band-type brake function.
In a preferred embodiment of the present utility model, comprise further, described deformable curvature mirrors regulates input air pressure to control its Curvature varying by barometric control unit.
In a preferred embodiment of the present utility model, comprise further, described first connector is equilateral right angled triangle, and provided the 45 ° of inclination installed surfaces installing deformable curvature mirrors by equilateral right angled triangle, described deformable curvature mirrors is arranged on the hypotenuse side of described first connector.
In a preferred embodiment of the present utility model, comprise further, also comprise plane mirror, described plane mirror is arranged on described second connector.
In a preferred embodiment of the present utility model, comprise further, described second connector is equilateral triangle, and described plane mirror is arranged on the hypotenuse side of the right angled triangle of described second connector.
In a preferred embodiment of the present utility model, comprise further, also comprise interface, described interface is arranged on the end face of a right-angle side of described second connector, and laser cutting head is connected on laser cutting machine body by described interface.
The beneficial effects of the utility model are:
One, this cutting head can complete cutting head in laser cutting process fast and accurately and swing drift angle and need (stroke can reach ± 120 °), possess higher transmission accuracy and transmission rigidity simultaneously, its moment in action is made to keep track accurate, and possess autozoom function, focal position can be changed in real time, without the need to manual adjustment in perforation and cutting process.
Cutting head two, in the utility model can coordinate pipe cutting machine to use, and it can go out conplane section by precise cutting, and its pivot angle accurately can parametrization set; It possesses pneumatic servo focusing function, when cutting the workpiece of unlike material thickness, only needs setting parameter and adjustable focal position, without the need to manual adjustment.
Three, the overall transmission rigidity of cutting head of the present utility model is high, and during as high acceleration cutting movement, it is constant that cutting head self can maintain its angle accurately and reliably.
Four, the transmission accuracy of cutting head of the present utility model is high, owing to introducing clearance elimination gear structure, eliminates the movement clearance of commutation, achieves the pivot angle of degree of precision, and repetitive positioning accuracy can reach ± and more than 0.5 °.
Five, the cost of cutting head of the present utility model is low, because do not have expensive direct driving motor and large-diameter circular grating in whole system, therefore manufacture and maintenance cost comparatively use the scheme of direct driving motor obviously to reduce; And servomotor and encoder are all peripheral in frame for movement, and maintaining is easy, change and only need to disassemble 4 screws.
Six, the energy consumption of cutting head of the present utility model is low and without obviously heating, after cutting head moves to desired location, it keeps its position mainly through frame for movement self damping and servomotor, only needs Exciting Windings for Transverse Differential Protection to maintain very small area analysis, no current in controlled winding.
Seven, cutting head of the present utility model is lightweight, owing to adopting 2 grades of decelerations, total reduction ratio can reach 100:1, therefore very little motor is only needed both can to produce enough torque drive and maintain the pivot angle of cutting head, and traditional direct driving motor is to reach same torque, volume weight all will go out greatly many.
Eight, the security of cutting head of the present utility model is high; when anxious stop or power down; the position of swing cutting head of the present utility model can not rely on external energy because of the mechanical damping of himself and motor internal contracting brake or self-locking is carried out in instruction; the accident of cutting head striking work can not be there is; can start to continue processing at stop position after failture evacuation; and use direct-drive motor or other do not possess the swing cutting head of auto-lock function transmission scheme; cutting head can run out of steam immediately in that case, falls to its center of gravity extreme lower position.
Nine, the moment of torsion of cutting head of the present utility model is large, because total reduction ratio is very large, it can be made to export very high torque, can drive the focus lamp assembly of large scale long-focus.And in prior art, adopt the swing cutting head of scheme of directly driving, the problem of lightweight and counterweigh must be paid special attention to, otherwise its dynamic response characteristic can be had a strong impact on.
Ten, cutting head of the present utility model is without concussion, the swing cutting head that cutting head of the prior art uses direct-drive motor to drive is when keeping inactive state, because himself damping is very low, entirety is in a kind of state of high frequency oscillation by a small margin, is easy to cause resonance.And cutting head of the present utility model is due to self damping and drive characteristic, without obviously shaking.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the end face structure schematic diagram of Fig. 1 middle gear case.
Fig. 3 is the structural representation of embodiment 2 longitudinal section.
Wherein, 1-fixation kit, 11-interface, 12-plane mirror, 13-spring bearing, 14-gear-box, 141-driving gear, 142-driven gear, 15-servomotor, 16-second connector, 2-wobble component, 21-first connector, 22-deformable curvature mirrors, 23-focus lamp, 24-capacitance sensor, 25-nozzle, 3-collimating mirror.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1
As shown in Figure 1-2, a kind of laser cutting head with oscillating function is disclosed in the present embodiment, it comprises wobble component 2 and fixation kit 1, and the effect of above-mentioned fixation kit 1 is provided support power mainly to wobble component 2 and and provides the driving force of swing to above-mentioned wobble component 2.
Above-mentioned wobble component 2 comprises: the first connector 21, the deformable curvature mirrors 22 be arranged in above-mentioned first connector 21, be fixed on above-mentioned first connector 21 lower end focus lamp 23, be arranged at the capacitance sensor 24 of above-mentioned focus lamp 23 lower end and be arranged on the nozzle 25 of above-mentioned capacitance sensor 24 lower end.By said nozzle 25, the gases at high pressure in cutting head cavity are converged injection, around focus, form atmosphere and the pressure of machining needs.
Above-mentioned first connector 21 side is right angled triangle, and above-mentioned deformable curvature mirrors 23 is arranged on the hypotenuse side of the right angled triangle of above-mentioned first connector 21, and above-mentioned deformable curvature mirrors 23 is arranged on the hypotenuse side of above-mentioned first connector 21.
In the present embodiment, above-mentioned deformable curvature mirrors 23 regulates input air pressure to control its Curvature varying, to realize focal position along optical axis movement fast by barometric control unit.
Above-mentioned fixation kit 1 comprises the second connector 16, the spring bearing 13 be connected on above-mentioned second connector 16, the gear-box 14 be connected with above-mentioned spring bearing 13 and the servomotor 15 be connected with said gear case 14, said gear case 14 connects above-mentioned wobble component 2, and the moment of torsion that above-mentioned servomotor 15 exports by said gear case 14 amplifies the gyration being converted to and driving above-mentioned wobble component 2 to swing.
In the present embodiment, above-mentioned servomotor 15 is the servomotor of band band-type brake function.Said gear case 14 and above-mentioned spring bearing 13 outer ring are fixed, said gear case 14 inside comprises driving gear 141 and driven gear 142, above-mentioned driving gear 141 is connected with the output shaft of above-mentioned servomotor 15, and the moment of torsion of above-mentioned servomotor 15 is passed to above-mentioned driven gear 142 by above-mentioned driving gear 141; Above-mentioned driven gear comprises two plate gears, two plate gears are connected with the inner ring of above-mentioned spring bearing respectively, between two plate gears, be embedded with Compress Spring, engage to eliminate with driving gear 141 respectively from positive and negative both direction by Compress Spring and turn round gap, realize pretension function.
Above-mentioned second connector 16 is also right angled triangle, and it is identical with the first connector 21 shape, the end face of the second connector right-angle side is provided with interface 11, is connected on laser cutting machine body by laser cutting head by above-mentioned interface.The effect of above-mentioned plane mirror is by the laser deflection 90 ° of interface 11 place's incidence, reflexes in deformable curvature mirrors 22.
The operation principle with the laser cutting head of oscillating function in the present embodiment: complete docking of cutting head and laser cutting machine complete machine body by interface; Laser deflection 90 ° from interface incidence reflexes in deformable curvature mirrors by plane mirror; Spring bearing completes the required rotary support in cutting head swing process; The outer ring of gear-box and radial journal bearing is fixed, the moment of torsion that servomotor exports is amplified the gyration being converted to and driving cutting head self to swing by its effect, comprise driving gear and driven gear in gear-box, the effect of driving gear is that servomotor moment of torsion is passed to driven gear.Driven gear is divided into two plate gears, is all connected with the inner ring of radial journal bearing, engages respectively to eliminate turn round gap and realize pretension by embedded Compress Spring from positive and negative both direction with driving gear.
The effect of deformable curvature mirrors incident ray is deflected again 90 ° to reflex on focus lamp, and the force value simultaneously by changing the air pressure inputted controls himself curvature, to realize the quick movement of focal position along optical axis; The effect of focus lamp is the focal position laser of incidence being converged in nozzle adapter; The effect of capacitance sensor is in process, and the moment keeps the constant of nozzle location and surface of the work relative distance; The effect of nozzle is that the gases at high pressure in cutting head cavity are converged injection, forms atmosphere and the pressure of machining needs around focus.
In swing process, fixation kit keeps static, wobble component generation oscillating motion, and its effective pendulum angle can reach ± and 120 °.The effect of barometric control unit be input accurately air pressure to control the curvature of deformable curvature mirrors.
Embodiment 2
As shown in Figure 3, a kind of cutting head with oscillating function is provided in the present embodiment, the fixation kit of the cutting head in the present embodiment and the basic structure of wobble component in the same manner as in Example 1, mainly use the laser beam of 1 mum wavelength unlike the cutting head in the present embodiment.
When the laser beam of use 1 mum wavelength, this device can use fiber optic conduction, can remove the interface in embodiment 1 and plane mirror, and add collimating mirror 3 in the apparatus, all the other elements are constant.The effect of collimating mirror is, the laser-beam transformation formed an angle exported by optical fiber is the collimated laser beam with constant diameter.Device in embodiment 2 can realize identical function in embodiment 1.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. one kind has the laser cutting head of oscillating function, it comprises wobble component and support and provides the fixation kit of driving force to described wobble component, described wobble component comprises: the first connector, be arranged on the deformable curvature mirrors in described first connector, be fixed on the focus lamp of described first connector lower end, be arranged at the capacitance sensor of described focus lamp lower end and be arranged on the nozzle of described capacitance sensor lower end, it is characterized in that, described fixation kit comprises the second connector, be connected to the spring bearing on described second connector, the gear-box be connected with described spring bearing, and the servomotor to be connected with described gear-box, described gear-box connects described wobble component, the moment of torsion that described servomotor exports by described gear-box amplifies the gyration being converted to and driving described wobble component to swing.
2. a kind of laser cutting head with oscillating function according to claim 1, it is characterized in that, described gear-box and described spring bearing outer ring are fixed, described gear-box inside comprises driving gear and driven gear, described driving gear is connected with the output shaft of described servomotor, and the moment of torsion of described servomotor is passed to described driven gear by described driving gear; Described driven gear comprises two plate gears, and gear described in two panels is connected with the inner ring of described spring bearing respectively, is embedded with spring described in two panels between gear, to be engaged eliminate gap and realize pretension by described spring with described driving gear.
3. a kind of laser cutting head with oscillating function according to claim 2, is characterized in that, described servomotor is the servomotor of band band-type brake function.
4. a kind of laser cutting head with oscillating function according to claim 1, is characterized in that, described deformable curvature mirrors regulates input air pressure to control its Curvature varying by barometric control unit.
5. a kind of laser cutting head with oscillating function according to claim 1, it is characterized in that, described first connector is equilateral right angled triangle, thered is provided the 45 ° of inclination installed surfaces installing deformable curvature mirrors by equilateral right angled triangle, described deformable curvature mirrors is arranged on the hypotenuse side of described first connector.
6. a kind of laser cutting head with oscillating function according to claim 5, is characterized in that, also comprise plane mirror, and described plane mirror is arranged on described second connector.
7. a kind of laser cutting head with oscillating function according to claim 6, is characterized in that, described second connector is equilateral triangle, and described plane mirror is arranged on the hypotenuse side of the right angled triangle of described second connector.
8. a kind of laser cutting head with oscillating function according to claim 7, it is characterized in that, also comprise interface, described interface is arranged on the end face of a right-angle side of described second connector, and laser cutting head is connected on laser cutting machine body by described interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520169536.6U CN204504506U (en) | 2015-03-24 | 2015-03-24 | A kind of laser cutting head with oscillating function |
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| CN201520169536.6U CN204504506U (en) | 2015-03-24 | 2015-03-24 | A kind of laser cutting head with oscillating function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741783A (en) * | 2015-03-24 | 2015-07-01 | 苏州领创激光科技有限公司 | Laser cutting head with swing function |
| CN107570885A (en) * | 2015-11-09 | 2018-01-12 | 常州科乐为数控科技有限公司 | A kind of laser cutting machine |
| CN109014619A (en) * | 2018-10-16 | 2018-12-18 | 辽宁工程技术大学 | A kind of laser cutting device |
| CN110524124A (en) * | 2019-10-10 | 2019-12-03 | 浙江泰好科技股份有限公司 | A kind of multistation laser cutting device convenient for adjusting angle |
-
2015
- 2015-03-24 CN CN201520169536.6U patent/CN204504506U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741783A (en) * | 2015-03-24 | 2015-07-01 | 苏州领创激光科技有限公司 | Laser cutting head with swing function |
| CN107570885A (en) * | 2015-11-09 | 2018-01-12 | 常州科乐为数控科技有限公司 | A kind of laser cutting machine |
| CN107570885B (en) * | 2015-11-09 | 2019-11-22 | 常州科乐为数控科技有限公司 | A kind of laser cutting machine |
| CN109014619A (en) * | 2018-10-16 | 2018-12-18 | 辽宁工程技术大学 | A kind of laser cutting device |
| CN110524124A (en) * | 2019-10-10 | 2019-12-03 | 浙江泰好科技股份有限公司 | A kind of multistation laser cutting device convenient for adjusting angle |
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