CN110117790B - Laser cladding device - Google Patents
Laser cladding device Download PDFInfo
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- CN110117790B CN110117790B CN201910565379.3A CN201910565379A CN110117790B CN 110117790 B CN110117790 B CN 110117790B CN 201910565379 A CN201910565379 A CN 201910565379A CN 110117790 B CN110117790 B CN 110117790B
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- 238000004372 laser cladding Methods 0.000 title claims abstract description 33
- 238000005253 cladding Methods 0.000 claims abstract description 45
- 230000000007 visual effect Effects 0.000 claims abstract description 17
- 238000012546 transfer Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 9
- 230000005684 electric field Effects 0.000 abstract description 8
- 230000005672 electromagnetic field Effects 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 238000007670 refining Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 15
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention relates to a laser cladding device. Mainly solves the problems of unstable cladding layer quality, narrow application range and unreasonable electromagnetic field setting of the existing laser cladding device. The invention comprises a cladding head (1), an ultrasonic vibration device (2), a steady-state magnetic field generating device (3), a workpiece clamping device (4), a visual sensor (12) and a servo control system (13), wherein a workpiece is electrified with direct current to form a steady-state electric field. The invention adopts the composite action of the steady-state electric field, the steady-state magnetic field and the ultrasonic vibration field to assist laser cladding processing, achieves the purposes of refining grains, reducing residual stress and reducing air holes and cracks, captures the position of a laser cladding area in real time through a visual recognition system, controls an ultrasonic wave transmitting head, a first permanent magnet and a second permanent magnet to move along with the laser cladding area, improves the stability of cladding layer quality, can adjust the position of the ultrasonic wave transmitting head in real time to achieve the optimal distance and direction, has wide application range and is not limited by the size of a workpiece.
Description
Technical Field
The invention relates to a surface modification device, in particular to a laser cladding device.
Background
Surface modification refers to imparting new properties to the surface of a material or article while maintaining its original properties. Surface modification techniques are a type of heat treatment techniques that use chemical and physical means to alter the chemical composition or texture of a material or workpiece surface to enhance the performance of the machine part or material. The laser cladding technology is a new surface modification technology which is developed along with the development of a high-power laser in the 70 th century, and the laser cladding technology refers to a technological method for placing selected coating materials on the surface of a coated substrate in different filling manners, enabling the selected coating materials and a thin layer on the surface of the substrate to be melted simultaneously through laser irradiation, and forming a surface coating which is extremely low in dilution and is metallurgically bonded with the substrate material after rapid solidification, so that the wear resistance, corrosion resistance, heat resistance, oxidation resistance, electrical appliance characteristics and the like of the surface of the substrate material are remarkably improved. The quality of the laser cladding layer is evaluated mainly from two aspects. Macroscopic examination of the shape, surface unevenness, cracks, pores, dilution rate and the like of a cladding channel; and secondly, microscopically, whether a good structure is formed or not, and whether the required performance can be provided or not is examined. The existing laser cladding device has the following technical defects: 1. in the laser cladding process, as the thermal property adjustable parameter window of the base material and the powder material is narrow, the heating and cooling speeds are extremely high, the temperature gradient and the thermal expansion coefficient of the cladding layer and the base material are different, various defects such as coarse grains, easy generation of bubbles, cracks, deformation, surface unevenness and the like of the cladding layer occur, and the quality of the cladding layer is unstable. At present, although some laser cladding devices in China adopt an ultrasonic technology and an electromagnetic field technology, the cladding layer still has flaws due to the structural reasons, and the quality of the cladding layer is unstable and not ideal enough. 2. The ultrasonic wave transmitting head and the cladding head follow-up, the ultrasonic wave transmitting head is fixedly connected with the cladding head, synchronous motion in the cladding process is ensured, ultrasonic waves are directly acted on the cladding layer, so that the purpose of an ultrasonic wave blank-separating action molten pool is achieved, the distance and the direction between the ultrasonic wave transmitting head and the cladding layer cannot be adjusted, the ultrasonic wave transmitting head can only be applied to fixed base materials and powder materials, and the application range is narrow. 3. The electromagnetic field is usually fixed, is unreasonable and cannot synchronously move along with the cladding head, so that the size of a processed workpiece is limited, and if the workpiece is large, the space occupied by an electromagnetic field is huge, the cost is high, and the popularization and the use are not facilitated.
Disclosure of Invention
In order to solve the problems of unstable cladding layer quality, narrow application range and unreasonable electromagnetic field setting of the existing laser cladding device, the invention provides the laser cladding device, which adopts the composite action of a steady electric field, a steady magnetic field and an ultrasonic vibration field to assist laser cladding processing, so as to achieve the purposes of refining grains, reducing residual stress and reducing air holes and cracks, the position of a laser cladding area is captured in real time through a visual recognition system, and a numerical control transfer device and a numerical control sliding deflection device are controlled through a servo control system, so that an ultrasonic wave transmitting head, a first permanent magnet and a second permanent magnet are driven to move along with the laser cladding area, the stability of the cladding layer quality is improved, the position of the ultrasonic wave transmitting head can be adjusted in real time to achieve the optimal distance and direction, the application range is wide, and the size of a workpiece is not limited.
The technical scheme of the invention is as follows: the laser cladding device comprises a cladding head, an ultrasonic vibration device, a steady-state magnetic field generating device and a workpiece clamping device, wherein the ultrasonic vibration device comprises an ultrasonic generator and an ultrasonic transmitting head which are sequentially connected, the cladding head comprises a laser head and a coaxial powder feeding device, the cladding head is sequentially connected with an arm, a connecting arm and a base sliding block in a hinging manner, and the base sliding block is arranged on a base and can slide relative to the base; the ultrasonic wave transmitting head is arranged on a transmitting head sliding block, a visual sensor is further arranged on the transmitting head sliding block, the visual sensor is connected with a servo control system, the visual sensor can capture laser bright spots on a workpiece and transmit the signals to the servo control system, the ultrasonic wave transmitting head sliding block is arranged on a numerical control transfer device, and the servo control system can enable the ultrasonic wave transmitting head sliding block to move longitudinally, transversely and up and down through controlling the numerical control transfer device after receiving the signals of the visual sensor, so that the ultrasonic wave transmitting head can track the laser bright spots and keep a certain distance; the steady-state magnetic field generating device comprises a first permanent magnet and a second permanent magnet which are corresponding to each other, the first permanent magnet and the second permanent magnet are arranged on the numerical control sliding deflection device, the distance between the first permanent magnet and the second permanent magnet and the angle between the connecting line of the first permanent magnet and the second permanent magnet and the horizontal plane can be adjusted, and the numerical control sliding deflection device can enable the first permanent magnet and the second permanent magnet to track laser bright spots and keep on two sides of a workpiece at the laser bright spots through the control of a servo control system; and (5) introducing direct current to the workpiece.
The numerical control transfer device comprises a longitudinal base sliding block and a transverse sliding support, wherein the longitudinal base sliding block is driven by a longitudinal screw rod and a longitudinal servo motor to move longitudinally, the transverse sliding support is installed above the longitudinal base sliding block through a first transverse screw rod, the transverse sliding support is driven by a first transverse servo motor and a first transverse screw rod to move transversely, a second transverse screw rod and a light bar are installed on the transverse sliding support, an ultrasonic wave transmitting head sliding block support is installed on the second transverse screw rod and the light bar and is driven by the second transverse screw rod and the second transverse servo motor to move transversely, a vertical screw rod is installed on the ultrasonic wave transmitting head sliding block support, and the ultrasonic wave transmitting head sliding block is driven by the vertical screw rod and the vertical servo motor to move vertically.
The numerical control sliding deflection device comprises a first permanent magnet sliding block and a second permanent magnet sliding block, wherein the first permanent magnet and the second permanent magnet are respectively fixed on the first permanent magnet sliding block and the second permanent magnet sliding block, the first permanent magnet sliding block and the second permanent magnet sliding block are respectively connected with a first adjusting screw rod and a second adjusting screw rod, the first adjusting screw rod and the second adjusting screw rod are respectively driven by a first adjusting motor and a second adjusting motor, the first adjusting screw rod, the second adjusting screw rod, the first adjusting motor and the second adjusting motor are all arranged on a permanent magnet support, the permanent magnet support is fixed on a support gear disc along the chord tangential direction, gear teeth are arranged on the outer edge of the support gear disc, the support gear disc is arranged on a wheel disc supporting sliding block, a wheel disc deflection motor is arranged on an output shaft of the wheel disc deflection motor, and the pinion is meshed with the support gear disc; the wheel disc supporting slide block is driven by the wheel disc supporting slide block sliding motor and the wheel disc supporting slide block sliding screw rod to linearly move.
Two parallel vertical lug plates are fixed on the wheel disc supporting sliding block, a pin shaft is fixed between the two vertical lug plates, an arc groove is formed in the support gear disc, and the pin shaft is located in the arc groove.
The two pins are arranged up and down, and the two arc grooves are respectively matched with the two pins.
The workpiece clamping device comprises a chuck, a chuck backseat and a center device, insulating heads are arranged on the center device and the chuck, and two poles of direct current are respectively connected to a workpiece from the center device and the chuck.
And the base is provided with a slider driving screw rod and a slider supporting beam, the base slider is arranged on the slider driving screw rod and the slider supporting beam, and the slider driving screw rod is connected with a slider driving servo motor.
The invention has the following beneficial effects: by adopting the technical scheme, the invention adopts the composite action of the steady-state electric field, the steady-state magnetic field and the ultrasonic vibration field to assist laser cladding processing, achieves the purposes of refining grains, reducing residual stress and reducing air holes and cracks, captures the position of a laser cladding area in real time through a visual recognition system, controls a numerical control transfer device and a numerical control sliding deflection device through a servo control system, further drives an ultrasonic wave transmitting head, a first permanent magnet and a second permanent magnet to move along with the laser cladding area, improves the stability of cladding layer quality, and can adjust the position of the ultrasonic wave transmitting head in real time to achieve the optimal distance and direction, has wide application range and is not limited by the size of a workpiece.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic structural view of the digital transfer device 14 according to the present invention.
Fig. 3 is a schematic diagram of the structure of the numerical control slip deflection device 17 in the invention.
Fig. 4 is a schematic view of the installation structure of the first permanent magnet 15 and the second permanent magnet 16 in the invention.
Fig. 5 is a schematic structural view of the work holding apparatus 4 of the invention.
Fig. 6 is a schematic view of the mounting structure of the base slider 9 in the invention.
In the figure, a 1-cladding head, a 2-ultrasonic vibration device, a 3-steady magnetic field generating device, a 4-workpiece clamping device, a 5-ultrasonic generator, a 6-ultrasonic transmitting head, a 7-arm, an 8-connecting arm, a 9-base slider, a 10-base, a 11-transmitting head slider, a 12-visual sensor, a 13-servo control system, a 14-numerical control transfer device, a 15-first permanent magnet, a 16-second permanent magnet, a 17-numerical control sliding deflection device, a 18-longitudinal base slider, a 19-transverse sliding bracket, a 20-longitudinal screw, a 21-longitudinal servo motor, a 22-first transverse screw, a 23-first transverse servo motor, a 24-second transverse screw and a 25-light bar, 26-ultrasonic wave transmitting head sliding block support, 27-second transverse servo motor, 28-vertical lead screw, 29-vertical servo motor, 30-first permanent magnet sliding block, 31-second permanent magnet sliding block, 32-first adjusting lead screw, 33-second adjusting lead screw, 34-first adjusting motor, 35-second adjusting motor, 36-permanent magnet support, 37-bracket gear disc, 38-wheel supporting sliding block, 39-wheel deflecting motor, 40-pinion, 41-vertical lug plate, 42-pin shaft, 43-arc groove, 44-chuck, 45-chuck backseat, 46-center device, 47-insulating head, 48-sliding block driving lead screw, 49-sliding block supporting light bar, 50-sliding block driving servo motor, 51-wheel supporting the sliding block sliding motor and 52-wheel supporting the sliding block sliding screw.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 6, the laser cladding device comprises a cladding head 1, an ultrasonic vibration device 2, a steady-state magnetic field generating device 3 and a workpiece clamping device 4, wherein the ultrasonic vibration device 2 comprises an ultrasonic generator 5 and an ultrasonic transmitting head 6 which are sequentially connected, the cladding head 1 comprises a laser head and a coaxial powder feeding device, the cladding head 1 is sequentially connected with an arm 7, a connecting arm 8 and a base sliding block 9 in a hinging manner, and the base sliding block 9 is arranged on a base 10 and can slide relative to the base 10; the ultrasonic wave transmitting head 6 is arranged on the transmitting head sliding block 11, the transmitting head sliding block 11 is also provided with a visual sensor 12, the visual sensor 12 is connected with a servo control system 13, the visual sensor 12 can capture laser bright spots on a workpiece and transmit the signals to the servo control system 13, the ultrasonic wave transmitting head sliding block 11 is arranged on a numerical control transfer device 14, and the servo control system 13 can enable the ultrasonic wave transmitting head sliding block 11 to move up and down along the longitudinal direction, the transverse direction and the vertical direction by controlling the numerical control transfer device 14 after receiving the signals of the visual sensor 12, so that the ultrasonic wave transmitting head 6 can track the laser bright spots and keep a certain distance; the steady-state magnetic field generating device 3 comprises a first permanent magnet 15 and a second permanent magnet 16 which are corresponding to each other, the first permanent magnet 15 and the second permanent magnet 16 are arranged on a numerical control sliding deflection device 17, the corresponding faces of the first permanent magnet 15 and the second permanent magnet 16 are opposite in polarity, the distance between the first permanent magnet 15 and the second permanent magnet 16 and the angle of the connecting line of the first permanent magnet and the second permanent magnet can be adjusted, and the numerical control sliding deflection device 17 can enable the first permanent magnet 15 and the second permanent magnet 16 to track laser bright spots and keep on two sides of a workpiece at the laser bright spots through the control of a servo control system 13; and (5) introducing direct current to the workpiece. By adopting the technical scheme, the workpiece is electrified during cladding, the cladding area on the workpiece is positioned between the first permanent magnet 15 and the second permanent magnet 16, the laser head on the cladding head 1 emits laser beams to irradiate the surface of the workpiece, meanwhile, the coaxial powder feeding device on the cladding head 1 sprays coating material powder to the laser irradiation position on the surface of the workpiece, a thin layer on the surface of the coating material powder and the workpiece is instantaneously melted at the same time, the laser head on the cladding head 1 emits laser to generate a molten pool on the surface of the workpiece, the coating material powder is attached to the molten pool, and meanwhile, the ultrasonic wave emitting head 6 aims at the cladding area to emit ultrasonic waves with the frequency of 20000Hz, so that grains in the cladding area are crushed, the temperature gradient is reduced, the residual stress is reduced, and the generation of cracks is reduced. The laser bright spot position that the laser head on the cladding head 1 sent is caught through vision sensor 12, this laser bright spot refers to the bright spot that produces on the work piece surface of laser irradiation, cladding district position, servo control system 13 receives the laser bright spot position signal of vision sensor 12, and send out the instruction and make numerical control transfer device 14 action, and then drive ultrasonic emission head 6 track laser bright spot (cladding district position) in real time and keep a certain distance, the work piece is switched on the direct current and is produced steady-state electric field, form steady-state magnetic field between first permanent magnet 15 and the second permanent magnet 16, produce the size and be 2t magnetic field, the molten pool receives lorentz force and is compressed down, the gas in the molten pool is extruded and discharged, reduce the production of bubble, servo control system 13 receives the laser bright spot position signal of vision sensor 12, and send out the instruction and make numerical control slide deflection device 17 action, and then drive first permanent magnet 15 and second permanent magnet 16 track laser bright spot (cladding district position) in real time, make the cladding district on the work piece be located between first permanent magnet 15 and the second permanent magnet 16 all the time. Since the electric current is generated in the workpiece and heat is also generated, grains in the cladding area are gathered and become large, and the ultrasonic waves emitted by the ultrasonic wave emitting head 6 can shake the grains to be broken, so that the effect of the steady electric field and the steady magnetic field is complementary. The invention adopts the composite action of a steady-state electric field, a steady-state magnetic field and an ultrasonic vibration field to assist laser cladding processing, achieves the purposes of refining grains, reducing residual stress and reducing air holes and cracks, captures the position of a laser cladding area in real time through a visual recognition system, controls a numerical control transfer device 14 and a numerical control sliding deflection device 17 through a servo control system 13, further drives an ultrasonic emission head 6, a first permanent magnet 15 and a second permanent magnet 16 to move along with the laser cladding area, improves the stability of cladding layer quality, and ensures that the position of the ultrasonic emission head 6 can be adjusted in real time to achieve the optimal distance and direction, has wide application range and is not limited by the size of a workpiece.
The numerical control transfer device 14 comprises a longitudinal base slide block 18 and a transverse sliding support 19, the longitudinal base slide block 18 is driven by a longitudinal screw rod 20 and a longitudinal servo motor 21 to move longitudinally, the transverse sliding support 19 is installed above the longitudinal base slide block 18 through a first transverse screw rod 22, the transverse sliding support 19 is driven by a first transverse servo motor 23 and a first transverse screw rod 22 to move transversely, a second transverse screw rod 24 and a feed beam 25 are installed on the transverse sliding support 19, an ultrasonic wave transmitting head slide block support 26 is installed on the second transverse screw rod 24 and the feed beam 25, the ultrasonic wave transmitting head slide block support 26 is driven by the second transverse screw rod 24 and the second transverse servo motor 27 to move transversely, a vertical screw rod 28 is installed on the ultrasonic wave transmitting head slide block 26, and the ultrasonic wave transmitting head slide block 11 is driven by the vertical screw rod 28 and the vertical servo motor 29 to move vertically. The above-mentioned "longitudinal direction" refers to the direction consistent with the moving direction of the cladding head 1, the "transverse direction" refers to the direction perpendicular to the moving direction of the cladding head 1, and the second transverse screw 24 is used to precisely control and adjust the feeding distance of the ultrasonic wave emitting head slider support 26, so that the optimal distance between the ultrasonic wave emitting head 6 and the cladding area is achieved, and the optimal distance can be obtained through repeated debugging.
The numerical control sliding deflection device 17 comprises a first permanent magnet sliding block 30 and a second permanent magnet sliding block 31, the first permanent magnet 15 and the second permanent magnet 16 are respectively fixed on the first permanent magnet sliding block 30 and the second permanent magnet sliding block 31, the first permanent magnet sliding block 30 and the second permanent magnet sliding block 31 are respectively connected with a first adjusting screw rod 32 and a second adjusting screw rod 33, the first adjusting screw rod 32 and the second adjusting screw rod 33 are respectively driven by a first adjusting motor 34 and a second adjusting motor 35, the first adjusting screw rod 32, the second adjusting screw rod 33, the first adjusting motor 34 and the second adjusting motor 35 are all arranged on a permanent magnet bracket 36, the permanent magnet bracket 36 is fixed on a bracket gear disc 37 along the chord tangential direction, the outer edge of the bracket gear disc 37 is provided with gear teeth, the bracket gear disc 37 is arranged on a disc supporting sliding block 38, a disc deflection motor 39 is arranged on the disc supporting sliding block 38, a pinion 40 is arranged on an output shaft of the disc deflection motor 39, and the pinion 40 is meshed with the bracket gear disc 37; the wheel supporting slide block 38 is driven to linearly move by a wheel supporting slide block sliding motor 51 and a wheel supporting slide block sliding screw rod 52. For different workpieces, the support gear disc 37 is driven to deflect through the disc deflection motor 39, and the deflection angle of the connecting line between the first permanent magnet 15 and the second permanent magnet 16 is repeatedly adjusted, so that the optimal angle can be obtained.
Two parallel vertical lug plates 41 are fixed on the wheel disc supporting sliding block 38, a pin shaft 42 is fixed between the two vertical lug plates 41, an arc groove 43 is arranged on the support gear disc 37, and the pin shaft 42 is positioned in the arc groove 43. The support gear plate 37 can deflect along the pin shaft 42, and the pin shaft 42 also plays a role in positioning and limiting.
The number of the pin shafts 42 is two, the two arc grooves 43 are arranged up and down, and the arc grooves are respectively matched with the two pin shafts 42. The pin shaft 42 and the circular arc groove 43 are two, so that the wheel disc supporting sliding block 38 is positioned more stably.
The workpiece in this embodiment is a hydraulic prop, the workpiece clamping device 4 includes a chuck 44, a chuck back seat 45 and a center device 46, insulating heads 47 are respectively arranged on the center device 46 and the chuck 44, and two poles of direct current are respectively connected to the workpiece from the center device 46 and the chuck 44. The hydraulic prop is clamped by the chuck 44 and is driven to rotate by the chuck 44, so that the hydraulic prop can be clad in all directions. The insulating head 47 serves as an insulation to ensure the stability of the current in the hydraulic prop, i.e. to obtain a steady-state electric field.
The base 10 is provided with a slider driving screw 48 and a slider supporting feed rod 49, the base slider 9 is arranged on the slider driving screw 48 and the slider supporting feed rod 49, and the slider driving screw 48 is connected with a slider driving servo motor 50. The base slider 9 can be reciprocated linearly along the feed bar by the operation of the slider driving servo motor 50.
Claims (6)
1. The utility model provides a laser cladding device, includes cladding head (1), ultrasonic vibration device (2), steady state magnetic field generating device (3) and work piece clamping device (4), and ultrasonic vibration device (2) are including ultrasonic generator (5) and ultrasonic emission head (6) that connect gradually, its characterized in that: the cladding head (1) comprises a laser head and a coaxial powder feeding device, the cladding head (1) is connected with an arm (7), a connecting arm (8) and a base sliding block (9) in sequence in a hinging mode, and the base sliding block (9) is arranged on a base (10) and can slide relative to the base (10); the ultrasonic wave transmitting head (6) is arranged on the transmitting head sliding block (11), the transmitting head sliding block (11) is also provided with a visual sensor (12), the visual sensor (12) is connected with a servo control system (13), the visual sensor (12) can capture laser bright spots on a workpiece and transmit the signals to the servo control system (13), the ultrasonic wave transmitting head sliding block (11) is arranged on the numerical control transferring device (14), and the servo control system (13) can enable the ultrasonic wave transmitting head sliding block (11) to move up and down along the longitudinal direction, the transverse direction and the distance by controlling the numerical control transferring device (14) after receiving the signals of the visual sensor (12), so that the ultrasonic wave transmitting head (6) can track the laser bright spots and keep a certain distance; the steady-state magnetic field generating device (3) comprises a first permanent magnet (15) and a second permanent magnet (16) which are corresponding to each other, the first permanent magnet (15) and the second permanent magnet (16) are arranged on a numerical control sliding deflection device (17), the distance between the first permanent magnet (15) and the second permanent magnet (16) and the angle between the connecting line of the two permanent magnets and the horizontal plane can be adjusted, and the numerical control sliding deflection device (17) can enable the first permanent magnet (15) and the second permanent magnet (16) to track laser bright spots and keep the first permanent magnet and the second permanent magnet (16) at the two sides of a workpiece at the laser bright spots through the control of a servo control system (13); introducing direct current into the workpiece;
the numerical control sliding deflection device (17) comprises a first permanent magnet sliding block (30) and a second permanent magnet sliding block (31), wherein the first permanent magnet (15) and the second permanent magnet (16) are respectively fixed on the first permanent magnet sliding block (30) and the second permanent magnet sliding block (31), the first permanent magnet sliding block (30) and the second permanent magnet sliding block (31) are respectively connected with a first adjusting screw (32) and a second adjusting screw (33), the first adjusting screw (32) and the second adjusting screw (33) are respectively driven by a first adjusting motor (34) and a second adjusting motor (35), the first adjusting screw (32), the second adjusting screw (33), the first adjusting motor (34) and the second adjusting motor (35) are respectively arranged on a permanent magnet bracket (36), the permanent magnet bracket (36) is fixed on a bracket gear disc (37) along the chord tangent direction, the outer edge of the bracket gear disc (37) is provided with gear teeth, the bracket gear disc (37) is arranged on a disc supporting sliding block (38), a disc deflection motor (39) is arranged on the output shaft gear (39), and a gear (40) is meshed with a bracket (40); the wheel disc supporting slide block (38) is driven by a wheel disc supporting slide block sliding motor (51) and a wheel disc supporting slide block sliding screw rod (52) to linearly move.
2. The laser cladding apparatus according to claim 1, wherein: the numerical control transfer device (14) comprises a longitudinal base sliding block (18) and a transverse sliding support (19), the longitudinal base sliding block (18) is driven by a longitudinal screw rod (20) and a longitudinal servo motor (21) to move longitudinally, the transverse sliding support (19) is installed above the longitudinal base sliding block (18) through a first transverse screw rod (22), the transverse sliding support (19) is driven by a first transverse servo motor (23) and a first transverse screw rod (22) to move transversely, a second transverse screw rod (24) and a light bar (25) are installed on the transverse sliding support (19), an ultrasonic wave transmitting head sliding block support (26) is installed on the second transverse screw rod (24) and the light bar (25), the ultrasonic wave transmitting head sliding block support (26) is driven by a second transverse screw rod (24) and a second transverse servo motor (27) to move transversely, a vertical screw rod (28) is installed on the ultrasonic wave transmitting head sliding block (11) is installed on the vertical screw rod (28), and the ultrasonic wave transmitting head sliding block (11) is driven by the vertical screw rod (28) and the vertical servo motor (29).
3. The laser cladding apparatus according to claim 1, wherein: two parallel vertical lug plates (41) are fixed on the wheel disc supporting sliding block (38), a pin shaft (42) is fixed between the two vertical lug plates (41), an arc groove (43) is formed in the support gear disc (37), and the pin shaft (42) is located in the arc groove (43).
4. A laser cladding apparatus according to claim 3, wherein: the number of the pin shafts (42) is two, the pin shafts are arranged up and down, and the number of the arc grooves (43) is also two and is respectively matched with the two pin shafts (42).
5. The laser cladding apparatus according to any one of claims 1 to 4, wherein: the workpiece clamping device (4) comprises a chuck (44), a chuck back seat (45) and a center device (46), insulating heads (47) are arranged on the center device (46) and the chuck (44), and two poles of direct current are respectively connected to a workpiece from the center device (46) and the chuck (44).
6. The laser cladding apparatus according to any one of claims 1 to 4, wherein: the base (10) is provided with a slider driving screw (48) and a slider supporting feed rod (49), the base slider (9) is arranged on the slider driving screw (48) and the slider supporting feed rod (49), and the slider driving screw (48) is connected with a slider driving servo motor (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565379.3A CN110117790B (en) | 2019-06-27 | 2019-06-27 | Laser cladding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565379.3A CN110117790B (en) | 2019-06-27 | 2019-06-27 | Laser cladding device |
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| CN110117790A CN110117790A (en) | 2019-08-13 |
| CN110117790B true CN110117790B (en) | 2024-01-30 |
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| CN201910565379.3A Active CN110117790B (en) | 2019-06-27 | 2019-06-27 | Laser cladding device |
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|---|---|---|---|---|
| CN110904449A (en) * | 2019-12-03 | 2020-03-24 | 浙江工业大学 | Rotating magnetic field assisted laser cladding head |
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