CN203265884U - Laser beam rotating device based on hollow electric spindle - Google Patents
Laser beam rotating device based on hollow electric spindle Download PDFInfo
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- CN203265884U CN203265884U CN 201320160821 CN201320160821U CN203265884U CN 203265884 U CN203265884 U CN 203265884U CN 201320160821 CN201320160821 CN 201320160821 CN 201320160821 U CN201320160821 U CN 201320160821U CN 203265884 U CN203265884 U CN 203265884U
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Abstract
The utility model relates to a laser beam rotating device based on a hollow electric spindle. The laser beam rotating device comprises a transmittance optical module and a hollow electric spindle motor, wherein a rotor of the hollow electric spindle motor comprises the axial hollow electric spindle and an electromagnetic induction coil surrounded on the hollow electric spindle; a coil which performs an electromagnetic induction function with the electromagnetic induction coil on the hollow electric spindle is arranged in a stator of the hollow electric spindle motor; the transmittance optical module is arranged in the axial direction of the hollow electric spindle; the hollow electric spindle is fixedly connected with the transmittance optical module; and the transmittance optical module is used for rotating and modulating light beams emitted on the transmittance optical module. The high-speed or ultra-high-speed hollow electric spindle motor, particularly an air floatation hollow electric spindle motor or a magnetic suspension hollow electric spindle motor, is adopted, so that laser beams which are high in accuracy and rotate at a high or ultra high speed can be obtained.
Description
Technical field
The utility model relates to beam motion control technology field, relates in particular to the laser beam whirligig that a kind of control light beam based on hollow electric main shaft carries out High Rotation Speed.
Background technology
In the prior art, the drive unit of laser beam whirligig, the general mode that all adopts the motor belt transmission.Be subject to impact and the restriction of belt movement maximum linear velocity and belt bending fatigue limit due to belt transmission, thereby belt transmission is not suitable for the field of small-bend radius, high-speed drive or long-term work.
Those skilled in the art are arranged on the laser beam whirligig on bearing block usually, but on the one hand, because there is rolling friction in rolling bearing in the continuous operation process, friction generates heat, makes the part temperature raise, the impact of expanding with heat and contract with cold that brings thus, on the other hand, due to the special construction design of bearing own, can be accompanied by when running up and produce vibrations and noise, the precision of these vibrations and reducing noise rotation.From the above, common rolling bearing can not meet turn round for a long time instructions for use in field of high-speed, high precision.
The utility model content
Technical problem to be solved in the utility model is to provide a kind ofly can control the laser beam whirligig that laser beam carries out at a high speed and high-precision rotary moves.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of laser beam whirligig based on hollow electric main shaft, comprise transmission optics module, hollow electric spindle motor, the rotor of described hollow electric spindle motor comprises axially hollow hollow electric main shaft and is centered around electromagnetic induction coil on described hollow electric main shaft, be provided with in described hollow electric spindle motor stator with described hollow electric main shaft on the electromagnetic induction coil coil that carries out the electromagnetic induction effect; The axial direction of described hollow electric main shaft is provided with the transmission optics module, described hollow electric main shaft is fixedly connected with described transmission optics module, the transmission optics module is rotated with hollow electric main shaft, described transmission optics module is used for the light beam that is transmitted on this transmission optics module is rotated modulation, and described hollow electric spindle motor is the hollow electric spindle motor of air supporting or the hollow electric spindle motor of hydraulic pressure or the floating hollow electric spindle motor of magnetic or the hollow electric spindle motor of ceramic bearing.
When the hollow electric main shaft of described hollow electric spindle motor is arranged on air-bearing, this hollow electric spindle motor is also referred to as the hollow electric spindle motor of air supporting.Described air-bearing refers to realize by import pressure air in bearing bore the bearing that hollow electric main shaft suspends in air.In described air-bearing bearing bore, the gap of pressure release is minimum, the high accuracy suspension that has guaranteed hollow electric main shaft is rotated, and can stably rotate accurately, possess high rotating speed, pinpoint accuracy, zerofriction force, without wearing and tearing, do not need lubricating oil, remarkable speed control performance, compact conformation arranged, the advantage such as lightweight, vibration is little, noise is low, the little response of inertia is fast.
When the hollow electric main shaft of described hollow electric spindle motor is arranged on Hydrodynamic and-static Bearing, this hollow electric spindle motor is also referred to as the hollow electric spindle motor of hydraulic pressure.Described Hydrodynamic and-static Bearing refers to a kind of outer supply constant pressure oil, sets up the bearing that makes electric main shaft oil film of suspension high voltage static pressure carrying all the time from start to stopping in bearing.Described Hydrodynamic and-static Bearing has and there is no wearing and tearing, long service life, starting power are little, also applicable characteristics under the speed of extremely low (being even zero).In addition, this bearing also has that running accuracy is high, oil film rigidity is large, can suppress the advantage such as film shocks.The hollow electric spindle motor of described hydraulic pressure owing to having adopted Hydrodynamic and-static Bearing, therefore possesses very high rigidity and damping, possesses higher rotation speed and service life.
When the hollow electric main shaft of described hollow electric spindle motor is arranged on electromagnetic suspension bearing, this hollow electric spindle motor is also referred to as the floating hollow electric spindle motor of magnetic.Described electromagnetic suspension bearing is that a kind of electromagnetic force of utilizing is suspended in electric main shaft the bearing that contactless supporting is realized in the space, have without friction, need not to lubricate, without oil pollution, the advantage such as energy consumption is low, noise is little, the life-span is long, be specially adapted in the particular surroundings such as vacuum, super dead room, high speed.Described magnetic floats hollow electric spindle motor, owing to adopting electromagnetic suspension bearing, therefore possesses high speed performance good, and precision is high, easily realizes the advantages such as diagnosis and on-line monitoring.
When the hollow electric main shaft of described hollow electric spindle motor is arranged on ceramic bearing, this hollow electric spindle motor is also referred to as the hollow electric spindle motor of ceramic bearing.Described ceramic bearing refers to that the rolling element of bearing uses Ceramic Balls, and bearing ring is still the bearing of steel ring, and the ceramic bearing standardization level is high, is satisfying under the condition of certain rotating speed, possesses the low advantage simple in structure of cost.The hollow electric main shaft of the hollow electric spindle motor of described ceramic bearing is arranged on ceramic bearing, and the rotating speed of this ceramic bearing turns above per minute 10,000.
Further, described transmission optics module is one or more series connection transmission planar optics element; Perhaps, described transmission optics module is one or more series connection optical prism optical element; Perhaps, described transmission optics module is one or more series connection diffracting object grating optical element; Perhaps, described transmission optics module is one or more series connection wedge optical element; Perhaps, described transmission optics module is one or more series connection slide optical element; Perhaps, the described transmission optics module combination that is the optical element of above-mentioned various ways.
Further, described hollow electric spindle motor is connected with motor control module, described motor control module is used for controlling described hollow electric spindle motor running, and according to hollow electric spindle motor operating condition, to this hollow electric spindle motor operating condition information of external equipment output.
Further, described motor control module comprises timing control signal unit and/or guiding exhaust unit and/or spindle dynamic balance on-line monitoring unit, described timing control signal unit is used for gathering described hollow electric Spindle rotation angle degree positional information, and the hollow electric Spindle rotation angle degree location information signal of collect is transferred to external equipment; Described guiding exhaust unit is positioned at the two ends of hollow electric spindle motor, is used for discharging the optical pollution thing that described hollow electric spindle motor discharges, and described optical pollution thing comprises optics liquid pollutant and optical gas pollutant; Described spindle dynamic balance on-line monitoring unit is used for the described hollow electric spindle dynamic balance state of on line real-time monitoring.
The purpose of this utility model is: using at a high speed even, the hollow electric spindle motor of ultrahigh speed drives the even ultrahigh speed rotation (the air-floating main shaft motor speed can reach 160,000 revolutions per seconds at present) at a high speed of transmission optical component do; Laser beam passes described hollow electric main shaft and sees through the transmission optics module that is arranged on described hollow electric main shaft along described hollow electric main shaft axial rotary; By the even ultrahigh speed rotation of described hollow electric main shaft high-precision high-speed, make transmission optics module emitting laser Shu Jinhang high-precision high-speed or even ultrahigh speed rotation from described rotation.Hollow electric main shaft or transmission optics module rotary speed are at a high speed at 10,000 rev/mins to 50,000 rev/mins, are being ultrahigh speed more than 50,000 rev/mins.
Operation principle of the present utility model is as follows: the hollow electric main shaft of hollow electric spindle motor has very high running accuracy, rotating speed, the transmission optics module be fixedly mounted on hollow electric main shaft axially on, transmission optics module and hollow electric spindle synchronous rotatablely move, and described transmission optics module is one or more series connection transmission planar optics element; Perhaps, described transmission optics module is one or more series connection optical prism optical element; Perhaps, described transmission optics module is one or more series connection diffracting object grating optical element; Perhaps, described transmission optics module is one or more series connection wedge optical element; Perhaps, described transmission optics module is one or more series connection slide optical element; Perhaps, the described transmission optics module combination that is the optical element of above-mentioned various ways.Laser beam passes described hollow electric main shaft and is transmitted on the transmission optics module that is fixedly connected with described hollow electric main shaft along described hollow electric main shaft axial rotary, light refraction by the transmission optics module and or optical birefringence and or the optical diffraction effect after, forming irradiating light beam launches from the transmission optics module, this outgoing beam rotates with respect to described incident beam along with the rotation of transmission optics module, and described rotatablely moving comprises that laser beam space relative rotary motion and light polarization rotatablely move.Due in actual applications, when hollow electric main shaft high speed or ultrahigh speed running, the variation of the motion states such as the Origin And Destination that hollow electric main shaft often turns around or other angle positions need to the switch light of laser instrument and or galvanometer scanning system and or the outside miscellaneous equipment such as platform movement system carry out SECO, therefore hollow electric spindle motor need to configure the timing control signal unit at this moment.Hollow electric main shaft is in the process that runs up, can give off the optical pollution things such as waste oil waste gas, these optical pollution things can pollute the transmission optics module, in case and optical pollution thing flow perturbation the air in the Laser Transmission route, also can have a negative impact to the aerial transmission of laser beam, guide exhaust unit by configuration and discharge the optical pollution things such as waste oil waste gas that described hollow electric spindle motor discharges, avoid the waste oil exhaust emission pollute the transmission optics module and Laser beam propagation is caused adverse effect.Particularly the present cost of the hollow electric main shaft of ultrahigh speed is also higher at a high speed, prevent unexpected generation, also is necessary very much configuration height air pressure alarm module and stoppage protection module.The high speed of hollow electric main shaft and ultrahigh speed running accuracy are related to the running accuracy of laser beam and the quality of following process quality, by configuration dynamic balancing online detection unit, and can on-line monitoring electricity spindle dynamic balance state.
Described timing control signal unit can be the variable frequency drives that drives hollow electric spindle motor or photodetection unit.
when the timing control signal unit is variable frequency drives, when it sends pulse signal to electric spindle motor, setting some group pulses is one-period, within this signal period, frequency converter output initial signal and termination signal or other angle position signal are issued laser instrument, simultaneously, frequency converter output initial signal and termination signal or other angle position signal are to vibration mirror scanning module or platform movement module, make laser instrument switch light and vibration mirror scanning module or platform movement module cooperate aspect sequential, realize like this laser instrument switch light, hollow electric main shaft rotation, sequential coordination question between vibration mirror scanning module or platform movement module.for example, when adopting rotary light beam to carry out laser drill, when described hollow electric main shaft rotates from the off, the synchronous bright dipping of timing control signal unit notice laser instrument, timing control signal unit notice vibration mirror scanning module (comprises scanning galvanometer and flat field focus lamp, described scanning galvanometer is responsible for the switching of Laser Processing hole interdigit, the flat field that described flat field focus lamp is responsible for the scanning galvanometer outgoing laser beam focuses on) synchronously laser spot is positioned position, a hole to be processed starting point, when hollow electric main shaft rotates to terminal point from the off, laser spot also rotates to terminal point from starting point, material surface to be processed is just completed the ring cutting processing of a circle, timing control signal unit notice laser instrument synchronously closes light, timing control signal unit notice vibration mirror scanning module is carried out station to be processed position and is switched and be positioned position, next hole to be processed, this moment when described hollow electric main shaft residing angle position be new starting point, the synchronous bright dipping of timing control signal unit notice laser instrument, laser spot continues new orifice ring and cuts processing.When above-mentioned vibration mirror scanning module replacing was the platform movement module, operation principle was constant.
When the timing control signal module is the photodetection unit, can do a mark at hollow electric main shaft in advance, described mark and hollow electric main shaft carry out synchronous rotary.adopt the way of photodetection, the photodetection signal of photodetection unit this mark of Dynamic Extraction, the photodetection signal of the mark that obtains is issued laser instrument as initial signal and termination signal, laser beam can be completed the specific number of turns of rotation within a signal period, simultaneously, the photodetection signal of the mark that obtains is issued vibration mirror scanning module or platform movement module as initial signal and termination signal, make laser instrument switch light and vibration mirror scanning module or platform movement module cooperate on sequential, complete like this laser instrument switch light, hollow electric main shaft rotation, sequential coordination question between vibration mirror scanning module or platform movement module, its sequential control procedure and employing variable frequency drives are basic identical as the SECO process of timing control signal unit.
Described guiding exhaust unit comprises guiding block and the negative pressure exhaust pipeline that is connected with guiding block, this guiding block can be the similar structures such as sucker or suction nozzle, guiding block is used for extracting the optical pollution thing, the optical pollution thing is discharged through the negative pressure exhaust pipeline again, prevent that the transmission optics module is contaminated, particularly reduce or eliminate air agitation that the lasting exhaust of the hollow electric spindle motor of air supporting causes to the impact of laser beam space transmission quality.
Described height air pressure alarm unit and stoppage protection unit possess air inlet barometric-pressure low-pressure warning function, air inlet air pressure alarm for high voltage function, electric spindle motor stoppage protection function, and main purpose is that the hollow electric spindle motor of protection is not subjected to accidental damage.
Described dynamic balancing online detection unit; dynamically balanced on-line monitoring when being used for hollow electric main shaft high speed and ultrahigh speed rotation; in case exceeding setting range, dynamic balancing just sends warning; can shut down and carry out corresponding inspection this moment; in order to avoid cause the Beam rotation precision to produce not waste product or other unexpected problems of Laser Processing, even damage described hollow electric spindle motor.
The beneficial effects of the utility model are: the utility model adopts at a high speed and the hollow electric spindle motor of ultrahigh speed, can obtain the laser beam of high-precision high-speed and ultrahigh speed rotation; Owing to having adopted the timing control signal unit, Beam rotation and laser switch (vibration mirror scanning or platform movement) sequential and can cooperate, and further ensure Laser Focusing focus scanning positional precision; Owing to having adopted the guiding exhaust unit, effective guarantee the quality of the not contaminated and laser beam space transmission of transmission optics module; Owing to having adopted height air pressure alarm unit and stoppage protection unit, effective guarantee hollow electric main shaft avoid infringement; Owing to having adopted the dynamic balancing online detection unit, effective guarantee the long-term high-precision high-speed of laser beam and ultrahigh speed rotation, reduce the generation of Laser Processing waste product and substandard products.
Description of drawings
Fig. 1 is the utility model embodiment 1 hollow electric spindle motor structural representation of air supporting;
Fig. 2 is the laser beam rotary device structure schematic diagram of the utility model embodiment 1 hollow electric main shaft of air supporting;
Fig. 3 is the utility model embodiment 2 hollow electric spindle motor structural representations of ceramic bearing;
Fig. 4 is the laser beam rotary device structure schematic diagram of the utility model embodiment 2 hollow electric main shafts of ceramic bearing.
In accompanying drawing, the list of parts of each label representative is as follows:
1, incident beam, 2, light emitting diode, 3, through hole, 4, photodetector, 5, the first guiding block, 6, the hollow electric main shaft of air supporting, 7, air-flotation electric spindle motor stator block, 8, thrust button, 9, the air-flotation electric spindle motor stator, 10, electromagnetic induction coil, 11, the transmission optics module, 12, the second guiding block, 13, the dynamic balancing online detection unit, 14, outgoing beam, 15, the hollow electric main shaft of ceramic bearing, 16, the Ceramic Bearing Electric Spindle motor stator, 17, the first block, 18, the second block, 19, ceramic bearing, 20, the air-flotation electric spindle motor, 21, the Ceramic Bearing Electric Spindle motor.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
Embodiment 1:
Fig. 1 is the hollow electric spindle motor structural representation of air supporting, as shown in Figure 1, the hollow electric spindle motor 20 of described air supporting comprises the rotor of air-flotation electric spindle motor stator 9 and the hollow electric spindle motor of described air supporting, and the air-bearing between the rotor of air-flotation electric spindle motor stator 9 and the hollow electric spindle motor of described air supporting (Fig. 1 does not indicate).
The rotor of the hollow electric spindle motor of described air supporting comprises the hollow electric main shaft 6 of axially hollow air supporting and is centered around electromagnetic induction coil 10 on the hollow electric main shaft 6 of described air supporting, and electromagnetic induction coil 10 is positioned on the hollow electric main shaft of described air supporting 6 outer wall centre positions.The hollow electric main shaft 6 of described air supporting is positioned at air-flotation electric spindle motor stator 9, described hollow electric main shaft is arranged on air-bearing, described air-bearing refers to be filled with compressed air between the hollow electric main shaft 6 of described air supporting and described air-flotation electric spindle motor stator 9 spaces, realize that the hollow electric main shaft 6 of air supporting suspends in air, perhaps, the compressed air that will soon form in annular seal space between the hollow electric main shaft 6 of air supporting and described air-flotation electric spindle motor stator 9 is called air-bearing.The axial concentric cylindrical diameter of bore of the hollow electric main shaft 6 of described air supporting is 10 millimeters, and the vertical direction of the hollow electric main shaft 6 of described air supporting is provided with through hole 3, and these through hole 3 diameters are 1 millimeter, and the axis of this through hole 3 is perpendicular to hollow electric main shaft 6 axis of described air supporting.The hollow electric main shaft 6 of described air supporting is provided with the thrust button 8 for hollow electric main shaft 6 axial location of described air supporting.The electromagnetic induction coil 10 that is wound with on the hollow electric main shaft of described air supporting 6 outer wall centre positions, with described air-flotation electric spindle motor stator 9 inside prefabricated coil (not indicating in figure) interact.
Fig. 2 is the laser beam rotary device structure schematic diagram of the hollow electric main shaft of air supporting, and as shown in Figure 2: the laser beam whirligig of the hollow electric main shaft of air supporting comprises: the hollow electric spindle motor 20 of air supporting, transmission optics module 11 and motor control module.
On the hollow electric main shaft 6 of described air supporting, transmission optics module 11 is installed, transmission optics module 11 is rotated along with hollow electric main shaft 6 rotations of air supporting.Described transmission optics module 11 is one or more series connection transmission planar optics element; Perhaps, described transmission optics module is one or more series connection optical prism optical element; Perhaps, described transmission optics module is one or more series connection diffracting object grating optical element; Perhaps, described transmission optics module is one or more series connection wedge optical element; Perhaps, described transmission optics module is one or more series connection slide optical element; Perhaps, the described transmission optics module combination that is the optical element of above-mentioned various ways.The hollow electric speed of mainshaft speed of the hollow electric spindle motor of air supporting can reach 160,000 revolutions per seconds.
Light path flow process in whole apparatus structure is as follows: incident beam 1 passes the hollow electric main shaft 6 of air supporting and incides described transmission optics module 11, through light refraction or optical diffraction, its outgoing beam 15 with respect to incoming laser beam 1 can occur spatial translation and or deflection and or beam splitting and or polarization state deflection, when described transmission optics module 11 was rotated along with hollow electric main shaft 6 high speeds of air supporting or ultrahigh speed, its outgoing laser beam 15 was with respect to and then high speed or ultrahigh speed rotation of incoming laser beam 1.
Described incident beam 1 is the incident beam-expanding collimation light beam of 7 millimeters for diameter.
Motor control module is used for controlling described hollow electric spindle motor running, and according to hollow electric spindle motor operating condition, to this hollow electric spindle motor operating condition signal of external equipment output.Motor control module comprises timing control signal unit and guiding exhaust unit and spindle dynamic balance on-line monitoring unit.
Described air-flotation electric spindle motor stator 9 swashs light incident side and is provided with air-flotation electric spindle motor stator block 7.Described air-flotation electric spindle motor stator 9 swashs light incident side, refers to that incident beam 1 enters an end of described air-flotation electric spindle motor stator 9.
described timing control signal unit is the photodetection unit, described photodetection unit comprises light emitting diode 2 and photodetector 4, every rotation 1 circle of the hollow electric main shaft 6 of air supporting, the light that light emitting diode 2 sends just has two-time chance to pass described through hole 3, described photodetector 4 receives the optical signal that sends from light emitting diode 2, and the optical signal that receives is converted to electric impulse signal sends, it is laser instrument and follow-up vibration mirror scanning module or mobile platform module that this electric impulse signal sends to LASER Light Source by described timing control signal module, be used for laser instrument, sequential between laser beam whirligig and vibration mirror scanning module or mobile platform module coordinates.
Described guiding exhaust unit, the negative pressure exhaust pipe that comprises the first guiding block 5, the second guiding block 12 and be connected with each guiding block (not indicating in figure), be equipped with circular hole in the middle of described the first guiding block 5 and the second guiding block 12, the first guiding block 5 is arranged on an end relative with air-flotation electric spindle motor stator 9 on air-flotation electric spindle motor stator block 7, from Fig. 1, the first guiding block 5 is positioned at the left end of air-flotation electric spindle motor stator block 7, and air-flotation electric spindle motor stator 9 is positioned at the end again of air-flotation electric spindle motor stator block 7; The second guiding block 12 is arranged on the described air-flotation electric spindle motor stator 9 laser emitting ends of air-flotation electric spindle motor stator 9.Described air-flotation electric spindle motor stator 9 laser emitting ends, after referring to that incident beam 1 enters described air-flotation electric spindle motor stator 9 inside, then from an end of the interior ejaculation outgoing beam 14 of air-flotation electric spindle motor stator 9.The optical pollution thing that the hollow electric spindle motor of described air supporting discharges is discharged by described the first guiding block 5 and the second guiding block 12; the negative pressure exhaust pipe is used for admitting the optical pollution thing of guiding block discharge; and further with outside optical pollution thing discharger; not contaminated with the protection transmission optical component, and ensure the stability of Laser Transmission space air.
During described electric main shaft High Rotation Speed, small amount of unbalance can produce huge vibration, therefore, each part must be through very accurate processing, assembling, correction, the dynamic balance accuracy of high-speed motorized spindles requires very strict, and it is inadequate only before assembling, each part of main shaft being carried out respectively dynamic balancing, must carry out the accurate dynamic balancing of integral body after assembling, even design special automatic-balancing system and realize electric main shaft balance on-line, to guarantee the high-speed smooth operation of electric main shaft.Described dynamic balancing online detection unit 13 is used for hollow electric main shaft 6 dynamic equilibrium states of on line real-time monitoring air supporting.
The hollow electric spindle motor 20 of air supporting in this device can be substituted by the hollow electric spindle motor of hydraulic pressure or the floating hollow electric spindle motor of magnetic, and namely the air-bearing of hollow electric spindle motor 20 can substitute with Hydrodynamic and-static Bearing or electromagnetic suspension bearing.Concrete, fill the liquid that is used for the floatation electric motor rotor in the hollow electric spindle motor stator of hydraulic pressure, exist in the floating hollow electric spindle motor stator of magnetic to be used for the high-intensity magnetic field that rotor suspends.
Embodiment 2:
Fig. 3 is the hollow electric spindle motor structural representation of ceramic bearing, as shown in Figure 3, the hollow electric spindle motor 21 of described ceramic bearing comprises the rotor of air-flotation electric spindle motor stator 16 and the hollow electric spindle motor of described ceramic bearing, and the ceramic bearing 19 between the rotor of described the Ceramic Bearing Electric Spindle motor stator 16 and the hollow electric spindle motor of described ceramic bearing.The rotor of the hollow electric spindle motor of described ceramic bearing comprises the hollow electric main shaft 15 of axially hollow ceramic bearing and the electromagnetic induction coil 10 that is centered around on the hollow electric main shaft 15 of described ceramic bearing, electromagnetic induction coil 10 is positioned on the hollow electric main shaft of described ceramic bearing 15 outer wall centre positions, the hollow electric main shaft 15 of described ceramic bearing is installed in described the Ceramic Bearing Electric Spindle motor stator 16 by described ceramic bearing 19, and the two ends of the hollow electric spindle motor stator 16 of ceramic bearing are respectively equipped with first identical block the 17 and second block 18 of structure.
Fig. 4 is the laser beam rotary device structure schematic diagram of the hollow electric main shaft of ceramic bearing, and as shown in Figure 4: the laser beam whirligig of the hollow electric main shaft of ceramic bearing comprises: the hollow electric spindle motor 21 of ceramic bearing, transmission optics module 11 and motor control module.
The axial concentric cylindrical diameter of bore of the hollow electric main shaft 15 of described ceramic bearing is 10 millimeters.On the hollow electric main shaft 15 of described ceramic bearing, transmission optics module 11 is installed, transmission optics module 11 is rotated along with hollow electric main shaft 15 rotations of ceramic bearing.Described transmission optics module 11 is one or more series connection transmission planar optics element; Perhaps, described transmission optics module is one or more series connection optical prism optical element; Perhaps, described transmission optics module is one or more series connection diffracting object grating optical element; Perhaps, described transmission optics module is one or more series connection wedge optical element; Perhaps, described transmission optics module is one or more series connection slide optical element; Perhaps, the described transmission optics module combination that is the optical element of above-mentioned various ways.The hollow electric main shaft 15 of described ceramic bearing is supported by two high speed ceramic bearings 19, and two ceramic bearings 19 are set on respectively the two ends of the hollow electric main shaft 15 of described ceramic bearing, and ceramic bearing 19 is arranged in the hollow electric spindle motor stator 16 of ceramic bearing.The electromagnetic induction coil 10 that is wound with on the hollow electric main shaft of described ceramic bearing 15 outer wall centre positions and described the Ceramic Bearing Electric Spindle motor stator 16 inside prefabricated coil (not indicating in figure) interact.The hollow electric spindle motor of ceramic bearing turns scooter 10,000 and forwards more than 10 ten thousand rev/mins to.
Described motor control module is used for controlling described hollow electric spindle motor running, and according to hollow electric spindle motor operating condition, to this hollow electric spindle motor operating condition signal of external equipment output.Motor control module comprises timing control signal unit and guiding exhaust unit and spindle dynamic balance on-line monitoring unit.
Light path flow process in this apparatus structure is as follows: incident beam 1 passes the hollow electric main shaft 15 of ceramic bearing and incides described transmission optics module 11, through light refraction or optical diffraction, its outgoing beam 14 with respect to incoming laser beam 1 can occur spatial translation and or deflection and or beam splitting and or polarization state deflection, described transmission optics module 11 is during along with hollow electric main shaft 15 high-speed rotation of ceramic bearing, and its outgoing laser beam 14 is with respect to and then High Rotation Speed of incoming laser beam 1.
Described incident beam 1 is incident beam-expanding collimation light beam, 7 millimeters of the diameters of light beam.
Described timing control signal unit is for driving the variable frequency drives of the hollow electric spindle motor of ceramic bearing, and the sequential that is used between LASER Light Source, laser beam whirligig and vibration mirror scanning module or mobile platform module coordinates.
Described guiding exhaust unit comprises the first guiding block 5, the second guiding block 12 that two structures are identical and the negative pressure exhaust pipe that is connected with each guiding block (not indicating in figure).Be equipped with circular hole in the middle of the first guiding block 5 and the second guiding block 12, make the first guiding block 5 can be arranged on the first block 17 and can be arranged on the second block 18 with the second guiding block 12.The optical pollution thing that the hollow electric spindle motor of described ceramic bearing discharges is discharged by described the first guiding block 5 and the second guiding block 12; the negative pressure exhaust pipe is used for admitting the optical pollution thing of guiding block discharge; and further with outside optical pollution thing discharger; not contaminated with the protection transmission optical component, and ensure the stability of Laser Transmission space air.
In high-speed main spindle, small amount of unbalance can produce huge vibration, and particularly having adopted in the electric spindle motor system of ball bearing needs on-line monitoring.Described dynamic balancing online detection unit 13 is used for hollow electric main shaft 15 dynamic balancing of on line real-time monitoring ceramic bearing.
Above-described embodiment 1 is two typical application of the present utility model with embodiment 2, and in fact its application of principle is not limited to top described situation.
In a word, the utility model proposes a kind of laser beam whirligig based on hollow electric main shaft, comprise transmission optics module, hollow electric spindle motor, the rotor of described hollow electric spindle motor comprises axially hollow hollow electric main shaft and is centered around electromagnetic induction coil on described hollow electric main shaft, be provided with in described hollow electric spindle motor stator with described hollow electric main shaft on the electromagnetic induction coil coil that carries out the electromagnetic induction effect; The axial direction of described hollow electric main shaft is provided with the transmission optics module, and described hollow electric main shaft is fixedly connected with described transmission optics module, and described transmission optics module is used for being transmitted into the modulation that is rotated of light beam on this transmission optics module.Employing has at a high speed or the ultrahigh speed rotation hollow electric spindle motor of hollow electric spindle motor, particularly air supporting or the floating hollow electric spindle motor of magnetic, can obtain the laser beam of high-precision high-speed and ultrahigh speed rotation.Owing to having adopted the timing control signal unit, Beam rotation and laser spot are switched (vibration mirror scanning or platform movement) sequential and can be cooperated, and further ensure Laser Focusing focus scanning positional precision; Owing to having adopted the guiding exhaust unit, effective guarantee the quality of the not contaminated and laser beam space transmission of optical element; Owing to having adopted height air pressure alarm unit and stoppage protection unit, effective guarantee hollow electric main shaft avoid infringement; Owing to having adopted the dynamic balancing online detection unit, effective guarantee the long-term high-precision high-speed of laser beam and ultrahigh speed rotation, reduce the generation of processing waste product and substandard products.
The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. laser beam whirligig based on hollow electric main shaft, it is characterized in that: comprise transmission optics module, hollow electric spindle motor, the rotor of described hollow electric spindle motor comprises axially hollow hollow electric main shaft and is centered around electromagnetic induction coil on described hollow electric main shaft, be provided with in described hollow electric spindle motor stator with described hollow electric main shaft on the electromagnetic induction coil coil that carries out the electromagnetic induction effect; The axial direction of described hollow electric main shaft is provided with the transmission optics module, described hollow electric main shaft is fixedly connected with described transmission optics module, described transmission optics module is used for the light beam that is transmitted on this transmission optics module is rotated modulation, and described hollow electric spindle motor is the hollow electric spindle motor of air supporting or the hollow electric spindle motor of ceramic bearing or the hollow electric spindle motor of hydraulic pressure or the floating hollow electric spindle motor of magnetic.
2. a kind of laser beam whirligig based on hollow electric main shaft according to claim 1 is characterized in that: described transmission optics module is one or more series connection transmission planar optics element; Perhaps, described transmission optics module is one or more series connection optical prism optical element; Perhaps, described transmission optics module is one or more series connection diffracting object grating optical element; Perhaps, described transmission optics module is one or more series connection wedge optical element; Perhaps, described transmission optics module is one or more series connection slide optical element; Perhaps, the described transmission optics module combination that is the optical element of above-mentioned various ways.
3. a kind of laser beam whirligig based on hollow electric main shaft according to claim 1 and 2, it is characterized in that: described hollow electric spindle motor is connected with motor control module, described motor control module is used for controlling described hollow electric spindle motor running, and according to hollow electric spindle motor operating condition, to this hollow electric spindle motor operating condition information of external equipment output.
4. a kind of laser beam whirligig based on hollow electric main shaft according to claim 3 is characterized in that: described motor control module comprises timing control signal unit and/or guiding exhaust unit and/or spindle dynamic balance on-line monitoring unit,
Described timing control signal unit is used for gathering described hollow electric Spindle rotation angle degree positional information, and the hollow electric Spindle rotation angle degree location information signal of collect is transferred to external equipment;
Described guiding exhaust unit is positioned at the two ends of hollow electric spindle motor, is used for discharging the optical pollution thing that described hollow electric spindle motor discharges, and described optical pollution thing comprises optics liquid pollutant and optical gas pollutant;
Described spindle dynamic balance on-line monitoring unit is used for the described hollow electric spindle dynamic balance state of on line real-time monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160821 CN203265884U (en) | 2013-04-02 | 2013-04-02 | Laser beam rotating device based on hollow electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160821 CN203265884U (en) | 2013-04-02 | 2013-04-02 | Laser beam rotating device based on hollow electric spindle |
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| CN203265884U true CN203265884U (en) | 2013-11-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212795A (en) * | 2013-02-04 | 2013-07-24 | 张立国 | Laser beam rotating device based on hollow electric spindle |
| CN105842882A (en) * | 2016-05-30 | 2016-08-10 | 宁波尼兰德磁业股份有限公司 | Magnetic concentrator |
| CN110355996A (en) * | 2018-04-10 | 2019-10-22 | 东台精机股份有限公司 | Laser aid and its operating method for lamination manufacture |
-
2013
- 2013-04-02 CN CN 201320160821 patent/CN203265884U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212795A (en) * | 2013-02-04 | 2013-07-24 | 张立国 | Laser beam rotating device based on hollow electric spindle |
| CN103212795B (en) * | 2013-02-04 | 2015-08-19 | 张立国 | A kind of laser beam whirligig based on hollow electric spindle |
| CN105842882A (en) * | 2016-05-30 | 2016-08-10 | 宁波尼兰德磁业股份有限公司 | Magnetic concentrator |
| CN105842882B (en) * | 2016-05-30 | 2018-04-10 | 宁波尼兰德磁业股份有限公司 | A kind of field shaper |
| CN110355996A (en) * | 2018-04-10 | 2019-10-22 | 东台精机股份有限公司 | Laser aid and its operating method for lamination manufacture |
| CN110355996B (en) * | 2018-04-10 | 2021-11-16 | 东台精机股份有限公司 | Laser device for additive manufacturing and operation method thereof |
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