CN108330485A - A kind of laser melting coating effective gravity synchronous powder feeder - Google Patents
A kind of laser melting coating effective gravity synchronous powder feeder Download PDFInfo
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- CN108330485A CN108330485A CN201810380463.3A CN201810380463A CN108330485A CN 108330485 A CN108330485 A CN 108330485A CN 201810380463 A CN201810380463 A CN 201810380463A CN 108330485 A CN108330485 A CN 108330485A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention provides a kind of laser melting coating effective gravity synchronous powder feeder, including powder-storage bin (1), stepper motor (2), stir disk (3), powder feeding pipe (4), control system, powder-storage bin (1) upper end is equipped with powder inlet, the meal outlet of powder-storage bin (1) lower end is connected with disk (3) is stirred, stepper motor (2) output shaft is connected with disk (3) level is stirred, powder feeding pipe (4), which is connected on, stirs disk (3) lower end, control system is connected with stepper motor (2) signal, the rotating speed that disk (3) is stirred using the rotating speed and then control of control system control stepper motor (2) realizes accurately controlling for powder sending quantity.The present invention realizes effective control to powder sending quantity and powder feed rate, can be directed to different shape base material, meet the actual needs in laser melting coating industrialized production.A kind of feasible scheme of powder feeding is provided for field of laser cladding.
Description
Technical field
The invention belongs to laser machine and material surface modifying equipment metal field more particularly to a kind of laser melting coating have
Imitate gravity synchronous powder feeder.
Background technology
Invention one of of the laser as mankind's greatness, just constantly affects social progress from birth.Laser melting coating
It is a kind of novel processing method being derived on the basis of laser, laser melting coating (also known as laser overlaying welding) refers to difference
Adding method the coating material of selection is placed on the matrix by cladding, through high-energy-density laser beam irradiated heat, be allowed to and
Matrix surface melts, and quickly solidifies, to form the technical process with it for the face coat of metallurgical binding in substrate surface.
The laser beam energy density of laser melting coating is high, and the influence under snap action to base material is smaller, noiseless, the change of workpiece
Shape is small；The direction of laser, energy-controllable can keep the excellent properties of base material while can obtain the cladding coating of function admirable；Base
It is firmly combined between material and laser cladding layer, cladding material dilution rate is low.These advantages make laser melting coating exist nearly ten years
It is highly valued in terms of material surface modifying, in automobile making, nuclear power, engineering machinery, aerospace, new material etc. field
Influence increasingly increase.
The technique of laser melting coating can be divided into two kinds：One is added material, i.e. powder prefabrication are supplied before laser treatment；
Another kind is synchronous supply added material in laser treatment process；That is synchronous powder feeding system method.Due to the cladding efficiency of the preset method of powder
It is low, powder is wasted seriously, and multilayer can not be carried out, gradient distribution cladding, it is different for heterogeneity powder performance accuracy, it is preset
Effect be extremely difficult to ideal state, of high cost, efficiency is low, and most research uses such automatic powder feeding system；
The powder amount of synchronous powder feeding system method is controllable, and synchronous powder feeder can carry out continuous work, improve cladding efficiency
Cost is also reduced simultaneously, therefore synchronous powder feeding system mode is applied generally in actual production.
In laser melting coating system, powder feeder is important one of component part, and the quality of powder feeder performance can direct shadow
The efficiency and quality of cladding are rung, therefore it is extremely important for laser melting coating processing to develop high performance powder feeder.
Patent CN103014696A discloses a kind of synchronous powder feeding system device for laser melting coating processing, solves powder sending quantity
Powder feeding interrupted phenomenon when larger, but single channel automatic powder feeding system is used, powder using efficiency is low；Patent CN105862030A discloses one
Kind laser coating and powder feeding device can avoid the agglomeration occurred when grain diameter is too small, but can not be accurate using single channel powder feeding
Powder mass flow is controlled, the efficiency of cladding is influenced；Patent CN102560474A discloses a kind of laser cladding multi-path synchronous powder feeder,
Single automatic powder feeding system in laser melting and coating process is changed, can realize that powder continuous uniform conveys, which causes powder serious
Waste, powder using efficiency is not high, and more mill diagrams easily cause reunion and the sticking phenomenon of powder；
Patent CN204198854U discloses a kind of direct-connected slot type laser coating and powder feeding device, the device be powder vertically to
Lower conveying can effectively avoid powder accumulation, improve powder pushing precision, but Powder Recovery is difficult and is unable to control powder mass flow and speed,
Powder using efficiency is not high；Patent CN106947969A discloses a kind of recoverable multipath conversion auxiliary drying laser coating and powder feeding
Device can meet synchronous powder feeding system laser melting coating and prepare the domain requirements such as multilayer or Thermal Barrier Coatings, but the apparatus structure
Complexity, the cost is relatively high, is not easy to realize integrated and scale.The above is used for the powder feeder of laser melting coating；Exist
It cannot achieve and accurately control powder sending quantity and powder feed rate or cannot achieve multi-angle regulation, irregular shape base material can not be adapted to
The defects of, it is had some limitations in field of laser cladding.
In addition, laser cladding powder sending device at this stage is complicated with high costs, it is necessary to which development structure is simple, at low cost
It is honest and clean, the high dust feeder of performance.
Invention content
It is an object of the invention to solve the problems of the above-mentioned prior art, a kind of simple in structure, dependable performance is provided
And low-cost laser melting coating effective gravity synchronous powder feeder, realize effective control to powder sending quantity and powder feed rate, it can
For different shape base material, meet the actual needs in laser melting coating industrialized production, providing one kind for field of laser cladding can
Row dust feeder.
The present invention adopts the following technical scheme that：
A kind of laser melting coating effective gravity synchronous powder feeder, including powder-storage bin 1, stepper motor 2, stir disk 3, powder feeding pipe 4, control
System processed, 1 upper end of powder-storage bin are equipped with powder inlet, and the meal outlet of 1 lower end of powder-storage bin is connected with disk 3 is stirred, 2 output shaft of stepper motor and
It is horizontal connected to stir disk 3, powder feeding pipe 4, which is connected on, stirs 3 lower end of disk, and control system is connected with 2 signal of stepper motor, utilizes control system control
The rotating speed realization that the rotating speed of stepper motor 2 processed and then control stirs disk 3 accurately controls powder sending quantity, 4 outlet ends of powder feeding pipe and powder feeding
Mouth 19 is connected, and powder-feeding mouth 19 is mounted on three-dimensional trim holder, and three-dimensional trim holder includes vertical adjustment frame 5 and horizontal adjustment frame 6, can
Trip 9, card slot 10, the sliding slot 11 of spin locking；
Vertical adjustment frame 5 is made of a lead screw guide rails and the leading screw on guide rail, is equipped on leading screw one end perpendicular
Straight adjustment frame knob 7, vertical adjustment frame 5 is used to control the vertical position of powder-feeding mouth 19；
Horizontal adjustment frame 6 is made of three lead screw guide rails and the leading screw in lead screw guide rails, and leading screw is installed on one end
There are horizontal adjustment frame knob 8, horizontal adjustment frame 6 to be used to control the horizontal position of powder-feeding mouth 19；
The trip 9 of rotatable locking is mounted on 5 bottom of vertical adjustment frame, the angle of inclination for adjusting powder-feeding mouth 19, card
Slot 10 is mounted on the lower end of vertical adjustment frame 5, and cooperation sliding slot 11 is used to adjust the stroke of powder-feeding mouth 19.
Wherein preferred technical solution be further include two-dimension adjustment frame 14, dovetail groove 13, two-dimension adjustment frame 14 is for adjusting
The horizontal and vertical position of dovetail groove 13；
Dovetail groove 13 is mounted on the bottom of two-dimension adjustment frame 14, and dovetail groove 13 is made of copper coin, is provided with diaphragm 17 thereon,
For preventing the sputtering object in molten bath and all directions scattering light.
Further preferred technical solution is an air blowing stria 12 to be installed on the dovetail groove 13, for dispelling
Smog in cladding process avoids pollution laser outgoing mirror.
Further optimal technical scheme is in addition, include quick plug 15, snorkel 16, flow pipe 18, quick plug 15
On air blowing stria 12, for connecting snorkel 16 and air blowing stria 12, snorkel 16 is connected on quick plug 15, is convenient for
Compressed air enters air blowing stria 12, and flow pipe 18 is installed on powder-feeding mouth 19.
Further optimal technical scheme is in addition, the powder-storage bin 1 is made of transparent organic material.
Further optimal technical scheme is in addition, the powder-feeding mouth 19 is four-way powder feeding structure.
The beneficial effects of the invention are as follows：
1. three-dimensional trim holder is arranged so that laser can be adapted for the base material of various irregular shapes.
2. stepper motor is arranged and sets powder-feeding mouth to multi-groove structure, powder sending quantity and powder feed rate can be accurately controlled.
3. the diaphragm on dovetail groove and air blowing stria structure, can extend the working life of laser.
4. the present invention have good practicability and operability, it is compact-sized it is small and exquisite, be suitable for duplication of production and assembling
The advantages that, aerospace, automobile industry are can be widely applied to, the fields such as new material have good application prospect and business valence
Value.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of dovetail groove；
Fig. 3 is the structural schematic diagram of three-dimensional trim holder.
In figure：1- powder feedings storehouse, 2- stepper motors, 3- stir disk, 4- powder feeding pipes, the vertical adjustment frames of 5-, 6- horizontal adjustments frame, 7-
Vertical adjustment frame knob, 8- horizontal adjustment framves knob, the trip of the rotatable lockings of 9-, 10- card slots, 11- sliding slots, 12- blow thin
Slot, 13- dovetail grooves, 14- two-dimension adjustments frame, 15- quick plugs, 16- snorkels, 17- diaphragms, 18- flow pipes, 19- powder-feeding mouths.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the technical solution below in the present invention carries out clear
Chu is fully described by, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
It is the laser melting coating effective gravity synchronous powder feeder with three-dimensional trim holder and two-dimension adjustment frame that embodiment 1, which implements 1,
As shown in Figs. 1-3, a kind of laser melting coating effective gravity synchronous powder feeder of the invention, including powder-storage bin 1, stepping electricity
Machine 2 stirs disk 3, powder feeding pipe 4, three-dimensional trim holder, powder-feeding mouth 19, two-dimension adjustment frame 14, dovetail groove 13, control system, powder-storage bin 1
Upper end is equipped with powder inlet, and the meal outlet of 1 lower end of powder-storage bin is connected with disk 3 is stirred, and 2 output shaft of stepper motor is connected with 3 level of disk is stirred,
Powder feeding pipe 4, which is connected on, stirs 3 lower end of disk, and control system is connected with 2 signal of stepper motor, and the powder particle in powder-storage bin 1 relies on gravity
It falls, the rotating speed of control system control stepper motor 2 controls powder particle and enter powder feeding to control the rotating speed for stirring disk 3
The amount of pipe 4 realizes that powder feeding is accurately controlled.
Powder-feeding mouth 19 is mounted on three-dimensional trim holder, and three-dimensional trim holder is used to adjust the vertically and horizontally position of powder-feeding mouth 19
It sets, three-dimensional trim holder includes vertical adjustment frame 5, horizontal adjustment frame 6, the trip 9 of rotatable locking, card slot 10, sliding slot 11.
Vertical adjustment frame 5 is made of a lead screw guide rails and the leading screw on guide rail, is equipped on leading screw one end perpendicular
Straight adjustment frame knob 7, rotates vertical adjustment frame knob 7, leading screw is made to move in the vertical direction, so as to adjust powder-feeding mouth 19 perpendicular
The upward position of histogram.
Horizontal adjustment frame 6 is made of three lead screw guide rails and the leading screw on guide rail, and leading screw one end is equipped with level
Adjustment frame knob 8, rotation horizontal adjustment frame knob 8, makes leading screw move in the horizontal direction, so as to adjust powder-feeding mouth 19 in level
Position on direction.
The trip 9 of rotatable locking, which is arranged, to be connect on the bottom of vertical adjustment frame 5, card slot 10 there are one rectangle sliding slot 11,
The purpose is to be used to be connected with 19 side of powder-feeding mouth, fixed powder-feeding mouth 19.
When the trip 9 of rotatable locking rotates, rotation card slot 10 is used for adjusting the angle of inclination of powder-feeding mouth 19.
Rectangle sliding slot 11 on the card slot 10 of 5 lower part of vertical adjustment frame is locked in the trip 9 of rotatable locking
In the case of, by adjusting the stroke with the position-adjustable powder-feeding mouth 19 of the fixed screw in 19 side of powder-feeding mouth on sliding slot 11.
Further include the two-dimension adjustment frame 14 being oppositely arranged, dovetail groove 13, two-dimension adjustment frame 14 and laser protective shell following table
Face is connected, and upper part is a two-dimentional sliding slot, and two-dimension adjustment frame 14 is fixed on protective shell lower surface by four screws, wherein two
A screw fixes the horizontal position of two-dimension adjustment frame 14, other two fixes two-dimension adjustment frame 14 in the screw of diagonal line distribution
Vertical position；The adjusting of the planar position of dovetail groove 13 is realized in position by changing screw, and two-dimension adjustment frame 14 is for adjusting
Save the horizontal and vertical position of dovetail groove 13；
Dovetail groove 13 is mounted on the bottom of two-dimension adjustment frame 14, and dovetail groove 13 is made of copper coin, is provided with thereon and laser
Device is emitted the similar square hole of mirror size as diaphragm 17, for preventing the sputtering object in molten bath and all directions scattering light.
Further preferred technical solution is an air blowing stria 12 to be installed on the dovetail groove 13, for dispelling
Smog in cladding process avoids pollution laser outgoing mirror.
Further optimal technical scheme is in addition, further include quick plug 15, snorkel 16, flow pipe 18, quick plug
15 are mounted on air blowing stria 12, and for connecting snorkel 16 and air blowing stria 12, snorkel 16 is connected on quick plug 15, just
Enter air blowing stria 12 in compressed air, flow pipe 18 is installed on powder-feeding mouth 19.
Further optimal technical scheme is in addition, the powder-storage bin 1 is made of transparent organic material, conducive to powder and sight is added
Survey remaining powder amount.
Further optimal technical scheme restrains automatic powder feeding system in addition, the powder-feeding mouth 19 is multiple-grooved, using four-way
Powder feeding simultaneously, can control powder sending quantity and cladding effect is more preferable than single channel powder-feeding mouth, while 19 both sides of powder-feeding mouth have been connected and followed
Ring water route is cooled down, and ensures that powder-feeding mouth 19 is hardly damaged under cladding process high temperature, extends the service life of powder-feeding mouth 19.
2 embodiment 2 of embodiment is the laser melting coating effective gravity synchronous powder feeder with three-dimensional trim holder
A kind of laser melting coating effective gravity synchronous powder feeder, including powder-storage bin 1, stepper motor 2, stir disk 3, powder feeding pipe 4, control
System processed, 1 upper end of powder-storage bin are equipped with powder inlet, and the meal outlet of 1 lower end of powder-storage bin is connected with disk 3 is stirred, 2 output shaft of stepper motor and
It is horizontal connected to stir disk 3, powder feeding pipe 4, which is connected on, stirs 3 lower end of disk, and control system is connected with 2 signal of stepper motor, utilizes control system control
The rotating speed realization that the rotating speed of stepper motor 2 processed and then control stirs disk 3 accurately controls powder sending quantity, 4 outlet ends of powder feeding pipe and powder feeding
Mouth 19 is connected, and powder-feeding mouth 19 is mounted on three-dimensional trim holder, and three-dimensional trim holder includes vertical adjustment frame 5 and horizontal adjustment frame 6, can
Trip 9, card slot 10, the sliding slot 11 of spin locking；
Vertical adjustment frame 5 is made of a lead screw guide rails and the leading screw on guide rail, is equipped on leading screw one end perpendicular
Straight adjustment frame knob 7, vertical adjustment frame 5 is used to control the vertical position of powder-feeding mouth 19；
Horizontal adjustment frame 6 is made of three lead screw guide rails and the leading screw in lead screw guide rails, and leading screw is installed on one end
There are horizontal adjustment frame knob 8, horizontal adjustment frame 6 to be used to control the horizontal position of powder-feeding mouth 19；
The trip 9 of rotatable locking is mounted on 5 bottom of vertical adjustment frame, and cooperation card slot 10 is for adjusting inclining for powder-feeding mouth 19
Rake angle, card slot 10 are mounted on the lower end of vertical adjustment frame 5, and cooperation sliding slot 11 is used to adjust the stroke of powder-feeding mouth 19.
Further optimal technical scheme is in addition, further include quick plug 15, snorkel 16, flow pipe 18, quick plug
15 are mounted on air blowing stria 12, and for connecting snorkel 16 and air blowing stria 12, snorkel 16 is connected on quick plug 15, just
Enter air blowing stria 12 in compressed air, flow pipe 18 is installed on powder-feeding mouth 19.
Further optimal technical scheme is in addition, the powder-storage bin 1 is made of transparent organic material, conducive to powder and sight is added
Survey remaining powder amount.
Further optimal technical scheme restrains automatic powder feeding system in addition, the powder-feeding mouth 19 is multiple-grooved, using four-way
Powder feeding simultaneously, can control powder sending quantity and cladding effect is more preferable than single channel powder-feeding mouth, while cycle has been connected in powder-feeding mouth both sides
Water route is cooled down, and ensures that powder-feeding mouth is hardly damaged under cladding process high temperature, extends the service life of powder-feeding mouth.
The laser melting coating effective gravity synchronous powder feeder of the present invention, it is simple and reliable, it is easy to maintain, it is easy to operate, it is at low cost,
Performance is high, can play an important role in field of laser cladding.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. a kind of laser melting coating effective gravity synchronous powder feeder, including powder-storage bin (1), stepper motor (2), stir disk (3), powder feeding pipe
(4), control system, powder-storage bin (1) upper end are equipped with powder inlet, and the meal outlet of powder-storage bin (1) lower end is connected with disk (3) is stirred, stepping
Motor (2) output shaft is connected with disk (3) level is stirred, and powder feeding pipe (4), which is connected on, stirs disk (3) lower end, control system and stepper motor (2)
Signal is connected, and the rotating speed that disk (3) is stirred using the rotating speed and then control of control system control stepper motor (2) realizes that powder sending quantity is accurate
Control, which is characterized in that powder feeding pipe (4) outlet ends are connected with powder-feeding mouth (19), and powder-feeding mouth (19) is mounted on three-dimensional trim holder
On, three-dimensional trim holder includes vertical adjustment frame (5), horizontal adjustment frame (6), the trip (9) of rotatable locking, card slot (10), slides
Slot (11)；
Vertical adjustment frame (5) is made of a lead screw guide rails and the leading screw on guide rail, and it is vertical to be equipped on leading screw one end
Adjustment frame knob (7), vertical adjustment frame (5) are used to control the vertical position of powder-feeding mouth (19)；
Horizontal adjustment frame (6) is made of three lead screw guide rails and the leading screw in lead screw guide rails, and leading screw is equipped on one end
Horizontal adjustment frame knob (8), horizontal adjustment frame (6) are used to control the horizontal position of powder-feeding mouth (19)；
The trip (9) of rotatable locking is mounted on vertical adjustment frame (5) bottom, the angle of inclination for adjusting powder-feeding mouth (19),
Card slot (10) is mounted on the lower end of vertical adjustment frame (5), connects that there are one rectangle sliding slots (11) on card slot (10), and card slot (10) is in cunning
Stroke under slot (11) cooperation for adjusting powder-feeding mouth (19).
2. a kind of laser melting coating effective gravity synchronous powder feeder according to claim 1, which is characterized in that further include two dimension
Adjustment frame (14), dovetail groove (13), two-dimension adjustment frame (14) are connected with laser protective shell lower surface, and upper part is a two dimension
Sliding slot, two-dimension adjustment frame (14) are fixed on protective shell lower surface by four screws, and two of which screw fixes two-dimension adjustment frame
(14) horizontal position, other two fixes the vertical position of two-dimension adjustment frame (14) in the screw of diagonal line distribution；By changing
Realize the adjusting of dovetail groove (13) planar position in the position for becoming screw；
Dovetail groove (13) is mounted on the bottom of two-dimension adjustment frame (14), and dovetail groove (13) is made of copper coin, is provided with diaphragm thereon
(17), for preventing sputtering object in molten bath and all directions from scattering light.
3. a kind of laser melting coating effective gravity synchronous powder feeder according to claim 2, which is characterized in that the dovetail
An air blowing stria (12) is installed on slot (13), for dispelling the smog in cladding process.
4. a kind of laser melting coating effective gravity synchronous powder feeder according to claim 3, which is characterized in that further include quick
Plug (15), snorkel (16), flow pipe (18), quick plug (15) are mounted on air blowing stria (12), are supplied gas for connecting
(16) and air blowing stria (12) are managed, snorkel (16) is connected on quick plug (15), enters air blowing stria convenient for compressed air
(12), flow pipe (18) is installed on powder-feeding mouth (19).
5. a kind of laser melting coating effective gravity synchronous powder feeder according to claim 1, which is characterized in that the storage powder
Storehouse (1) is made of transparent organic material.
6. a kind of laser melting coating effective gravity synchronous powder feeder according to claim 1, which is characterized in that the powder feeding
Mouth (19) is four-way powder feeding structure.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680273A (en) * | 2018-12-27 | 2019-04-26 | 西安必盛激光科技有限公司 | A kind of adjustable laser melting coating system of laser angle |
| CN110340363A (en) * | 2019-05-16 | 2019-10-18 | 西北工业大学 | A kind of detection device and method of synchronous powder feeding system laser gain material manufacture light powder interaction |
| CN112226765A (en) * | 2020-11-09 | 2021-01-15 | 宁波中物力拓超微材料有限公司 | Control method for laser cladding powder feeding |
| CN113828925A (en) * | 2021-11-26 | 2021-12-24 | 北京煜鼎增材制造研究院有限公司 | Gravity powder feeding method and device |
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