CN113333910B - Intelligent material increase device and method based on rotating multi-wire electric arc - Google Patents
Intelligent material increase device and method based on rotating multi-wire electric arc Download PDFInfo
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- CN113333910B CN113333910B CN202110503042.7A CN202110503042A CN113333910B CN 113333910 B CN113333910 B CN 113333910B CN 202110503042 A CN202110503042 A CN 202110503042A CN 113333910 B CN113333910 B CN 113333910B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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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
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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to rotary multi-wire arc additive manufacturing equipment and a rotary multi-wire arc additive manufacturing method. Comprises a water-cooling TIG welding gun and a rotary multi-strand welding wire feeding device fixed on the welding gun. The rotary multi-strand wire feeding device comprises: the welding gun comprises a water-cooled welding gun body, a rotary multi-wire feeding device fixed on the welding gun body, a wire feeding nozzle and the like. Wherein the rotary multi-filament feeding device comprises: a stepping motor for adjusting the rotating speed, a height and horizontal position adjusting piece and a wire feeding angle adjusting piece. The invention has the following effects: the motion through the rotatory multifilament feeding device of step motor control realizes the evenly distributed of vibration material disk process deposit metal, adjusts the feed rate of different silk materials, adjusts the tissue homogeneity of rotatory speed control liquid drop to the stirring effect control sedimentary deposit of molten bath, realizes the accurate regulation and control of the tissue of sedimentary deposit, through the silk material of changing different materials, can realize the component control of sedimentary deposit, realizes the vibration material disk of gradient material. The equipment can realize accurate control of the components and the structure of the electric arc additive on the premise of not changing an additive system.
Description
The technical field is as follows:
the invention relates to an intelligent device and method for material increase based on a rotary multi-wire electric arc, in particular to a device for material increase manufacturing of a plurality of welding wires in a rotary mode, and belongs to the technical field of electric arc material increase manufacturing equipment and technology.
Background art:
the additive manufacturing integrates a computer-aided technology, a numerical control technology and an intelligent layering algorithm, and manufactures a model, a mould and a part by adopting a point-by-point or layer-by-layer forming method based on a discrete-accumulation principle. The complex three-dimensional product is processed and manufactured to be converted into a series of two-dimensional manufacturing superposition, so that parts with almost any complex shapes can be obtained under the condition of not using a die and a complex auxiliary tool, the manufacturing freedom is high, the production period from product design to finished products can be greatly shortened, and the cost of raw materials, operation cost and the like is reduced. The additive manufacturing can realize free design and is suitable for producing parts with complex shapes. Additive manufacturing is known as a representative technology expected to generate 'the third industrial revolution', and is a leading technology for developing a large-batch manufacturing mode to a personalized manufacturing mode. Because of the characteristics of low forming efficiency, high requirements on environment and equipment and the like of powder additive manufacturing by using laser and electron beams as heat sources, the electric arc additive manufacturing has the advantages of high manufacturing efficiency, few metallurgical defects and the like and is widely applied.
The electric arc additive manufacturing can be divided into electric arc additive manufacturing of a consumable electrode and electric arc additive manufacturing of a non-consumable electrode, and compared with the electric arc additive manufacturing of the consumable electrode, a molten pool of the electric arc additive manufacturing of the non-consumable electrode is more stable, the material utilization rate is higher, and the forming effect is higher. However, only one welding wire is generally used in the traditional non-consumable electrode electric arc additive manufacturing, and the cladding efficiency is low. At present, two welding wires proposed in some devices are used for arc additive manufacturing, but the two welding wires either do not enter a molten pool at the same time or are fixed at a certain position, so that the composition segregation in the actual additive manufacturing process is serious, and the regulation and control of the structure and the composition of a deposition layer cannot be realized.
In summary, the existing single-wire arc additive manufacturing technology is not efficient, and the applicability of multi-wire arc additive manufacturing is poor. The invention innovatively provides electric arc additive manufacturing equipment and method based on the rotary multi-wire, which can improve the efficiency of the electric arc additive manufacturing process, can realize the regulation and control of the structure and components of a deposition layer through the multi-wire feeding design, and can improve the stability of the structure and the uniformity of the components of the deposition layer through the rotary wire feeding design.
The invention content is as follows:
the invention provides an intelligent device and method for material increase based on a rotary multi-wire arc, aiming at the defects that the existing arc material increase manufacturing method is low in efficiency, cannot perform accurate component control and the like.
The technology of the invention is realized by the following technical scheme:
the device comprises a water-cooling TIG welding gun (1) and a rotary multi-wire feeding device fixed on the TIG welding gun (1) through a fixing piece, wherein the rotary multi-wire feeding device comprises a stepping motor (2), a transmission device (3) and a wire feeding device which are fixed on the TIG welding gun (1). The wire feeding device includes: horizontal direction adjusting device (6), vertical direction adjusting device (4), send a silk angle adjusting device (8) and send a mouth (7), wherein:
the horizontal direction adjustment and the vertical direction adjustment are fixed through a fastening device (5), and one device can realize the adjustment in two directions;
the number of the horizontal direction adjusting devices (6), the number of the vertical direction adjusting devices (4), the number of the wire feeding angle adjusting devices (8) and the number of the wire feeding nozzles (7) are not less than 3 in total, and the wire feeding angle adjusting devices and the wire feeding nozzles form a certain angle and can be adjusted as required;
the welding gun is a water-cooling TIG welding gun, heat generated in the additive manufacturing process is taken away through circulating water, the temperature of the welding gun is reduced, and the stability of the additive manufacturing process is improved;
the wire feeding devices in the multi-wire feeding device are mutually independent and form a certain angle, the relative positions are not changed after the angle is fixed, but the whole multi-wire mechanism rotates around the TIG welding gun (1) in a reciprocating manner under the action of the stepping motor (2);
the stepping motors (2) are connected with the multi-wire feeding device through the transmission device (3), and the stepping motors are controlled through the controller, so that the rotating speed of the multi-wire feeding device can be adjusted in real time; the single wire feeding device is mutually independent and provided with independent wire feeding discs, a plurality of wire feeding disc control systems are controlled by a unified controller, and the single wire feeding device can be independently controlled or the multi-wire feeding device can be synchronously controlled;
the wire feeding angle of a wire feeding nozzle in the multi-wire material feeding device is 10-80 degrees, the wire feeding height can be adjusted according to requirements, and the number of the multi-wire feeding devices can be set to be 3 or more.
The invention has the beneficial effects that:
1. the rotary multi-wire additive manufacturing device can enable wires to enter a molten pool at different positions on the molten pool at a certain initial speed, can realize the stirring effect on the molten pool, and obtains more uniform and finer tissues;
2. according to the rotary multi-wire additive manufacturing device, different wire feeding devices are mutually independent, welding wires with different diameters and different materials can be used, and component control in the electric arc additive manufacturing process can be realized by controlling the feeding speed and the wire feeding position of different wires, so that electric arc additive of a gradient functional material is realized;
3. the mutual angle between the multi-wire feeding devices can be adjusted, the number of the wire feeding devices can be increased to 5, meanwhile, the whole device can adapt to welding guns with different sizes, has higher flexibility, and can realize multi-wire electric arc material increase on various devices.
Description of the drawings:
FIG. 1 is a manufacturing device based on a rotary multi-wire electric arc material increase intelligent device, which comprises a 1-water-cooling TIG welding gun, a 2-stepping motor, a 3-transmission device, a 4-vertical direction adjusting device, a 5-fixing screw, a 6-horizontal direction adjusting device, a 7-wire feeding nozzle and an 8-wire feeding angle adjusting device.
The specific implementation mode is as follows:
the invention relates to an intelligent device and an intelligent method for electric arc additive based on rotating multiple wires, which are described in detail with reference to the attached drawings and reference examples in order to make the purposes, effects and technical schemes of the invention more obvious. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention is described in detail below by way of specific examples in conjunction with the accompanying drawings.
FIG. 1 is an embodiment of the present invention. Shown in the figure is a rotating multi-filament arc additive manufacturing device. The device comprises a welding gun body 1, a rotating device and a wire feeding device. Wherein, what the welder body chooseed for use is machine water-cooling TIG welder, and rotary device used is that double-phase direct current 42mm step motor 2, fixes on the welder body through the fastening area, drives a plurality of silk material feeding devices through transmission 3 simultaneously and carries out reciprocating motion, realizes that silk material feeding device has welder body center as the centre of a circle and carries out periodic rotation, wherein:
the control of the stepping motor in the implemented case can adjust the rotating speed of the wire feeding device, and meanwhile, a limiting screw is arranged between the horizontal adjusting device and the stepping motor, so that the feeding device is prevented from colliding with the stepping motor when rotating, and the stability of the system is ensured;
the wire feeding devices in the embodiment have 3 wire feeding devices which are mutually inclined at an angle of 60 degrees. The single wire feeding device comprises: a horizontal direction adjusting device 6, a vertical direction adjusting device 4, a wire feeding angle adjusting device 8 and a wire feeding nozzle 7, wherein the horizontal direction adjusting of the horizontal direction adjusting device 6 is the horizontal direction adjusting by adjusting the position of the vertical direction adjusting device in the wire feeding nozzle 6. The horizontal direction adjusting device 6 is provided with scales, the vertical direction adjusting device is also provided with scales, and when the horizontal direction adjusting device and the vertical direction adjusting device are positioned, the horizontal direction adjusting device and the vertical direction adjusting device are fixed by using the fixing screws 5;
in the embodiment, the diameter of the welding wire which can be fed by the wire feeding nozzle is replaced by 0.8-1.6, the wire feeding angle can be adjusted by the wire feeding angle adjusting device 8, and the adjusting angle is 10-80 degrees;
in the implementation case, when three kinds of wire drive feed units sent the same kind of welding wire, can effectively improve the efficiency of electric arc vibration material disk, be more than twice of ordinary monofilament electric arc vibration material disk efficiency, send the wire to be different kind of welding wire when sending, can realize the component gradient transition between the different sedimentary layers through the feed rate of adjusting different kind of welding wires, and rotatory wire drive feed unit can guarantee same sedimentary layer composition homogeneous distribution, simultaneously because rotatory send a liquid drop that leads to can take place the stirring when getting into the molten bath, the metallurgical reaction of each element in the molten bath has been promoted, reduce the production of defect.
The use method of the additive manufacturing device based on the rotating multi-wire arc in the embodiment is as follows:
an electric arc is generated between the water-cooling TIG welding gun 1 and the base material or the deposition layer, and a stable molten pool is formed on the surface of the deposition layer. The three wire feeding devices are preset with the mutual angles and the rotation speeds, and perform reciprocating rotation under the action of the stepping motor. The height of wire feeding and the angle of the wire entering the molten pool are adjusted by a wire feeding angle adjusting device, and the spatial positions of a wire feeding nozzle and a welding gun are controlled by a horizontal and vertical adjusting device. The three wire feeding devices are respectively connected with the wire feeder, and the wire feeding speeds of the three wire feeding devices are respectively set through a unified controller. The three wire feeding mouths are at a distance of 1-2mm, and the welding wire enters a molten pool from one side of the electric arc in a night drop transition mode to form continuous drop transition, so that the stability of the electric arc is ensured, and a deposition layer with stable quality is obtained.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (6)
1. The rotary multi-wire electric arc additive equipment is characterized by comprising a water-cooling TIG welding gun (1) and a rotary multi-wire feeding device fixed on the TIG welding gun (1) through a fixing piece, wherein the rotary multi-wire feeding device comprises a stepping motor (2) fixed on the TIG welding gun (1), a transmission device (3) and a wire feeding device;
the wire feeding device includes: horizontal direction adjusting device (6), vertical direction adjusting device (4), fastener (5), send a silk angle adjusting device (8) and send a mouth (7), wherein:
the horizontal direction adjusting device and the vertical direction adjusting device are fixed through a fastening device (5), and one device can realize the adjustment and fixation in two directions;
the number of the horizontal direction adjusting devices (6), the number of the vertical direction adjusting devices (4), the number of the wire feeding angle adjusting devices (8) and the number of the wire feeding nozzles (7) are not less than 3 in total, and the wire feeding angle adjusting devices and the wire feeding nozzles form a certain angle and can be adjusted as required;
each silk material feeding device mutual independence among the multifilament feeding device, and be certain angle each other, after the angle is fixed, relative position does not change, but multifilament feeding device is whole to carry out reciprocating rotation around TIG welder (1) under the effect of step motor (2), the fixed sedimentary deposit element that leads to of silk material feeding position is inhomogeneous in the rotatory mode of feeding, rotatory sending silk can be so that the molten drop has a tangential initial velocity in the twinkling of an eye that gets into the molten bath, certain rotation can take place behind the entering molten bath, make molten bath element distribute more evenly.
2. The rotating multi-wire arc additive equipment according to claim 1, wherein the number of the wire feeding devices is 3 or more, wherein 3 different wires are made of different materials, so that fuse deposition of wires with different compositions can be realized, and the cladding efficiency can be improved by more than 2 times by selecting the same 3 wires.
3. The rotary multi-wire arc additive equipment according to claim 1, wherein a stepping motor (2) is connected with the wire feeding device through a transmission device (3), and the stepping motor is controlled through a controller, so that the rotating speed of the wire feeding device can be adjusted in real time according to requirements.
4. The rotary multi-wire arc additive manufacturing equipment according to claim 1, wherein the single wire feeding devices are independent of each other and have independent wire feeding disks, and a plurality of wire feeding disk control systems are controlled by a unified controller, so that independent control of the single wire feeding devices can be realized, and synchronous control of the plurality of wire feeding devices can also be realized.
5. The rotary multi-wire arc additive manufacturing apparatus according to claim 1, wherein a wire feeding angle of a wire feeding nozzle in the plurality of wire feeding devices is 10-80 degrees, and a height of a wire feeding is adjusted as required.
6. Use of a rotating multifilar arc additive plant according to any of claims 1-5, comprising the steps of:
s1, generating an electric arc between a water-cooling TIG welding gun (1) and a base material or a deposition layer to form a stable molten pool on the surface of the deposition layer;
s2, presetting the mutual angles and the rotation speeds of the three wire feeding devices, and performing reciprocating rotation under the action of a stepping motor;
s3, adjusting the wire feeding height and the angle of the wire entering the molten pool through a wire feeding angle adjusting device, and controlling the spatial positions of a wire feeding nozzle and a welding gun through a horizontal and vertical adjusting device;
s4, respectively connecting three wire feeding devices with a wire feeder, and respectively setting wire feeding speeds of the three devices through a unified controller;
and S5, enabling the three wire feeding nozzles to have a distance of 1-2mm, enabling the welding wire to enter a molten pool from one side of the electric arc in a droplet transition mode to form continuous droplet transition, and ensuring the stability of the electric arc so as to obtain a deposition layer with stable quality.
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| CN202110503042.7A CN113333910B (en) | 2021-05-08 | 2021-05-08 | Intelligent material increase device and method based on rotating multi-wire electric arc |
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| CN202110503042.7A CN113333910B (en) | 2021-05-08 | 2021-05-08 | Intelligent material increase device and method based on rotating multi-wire electric arc |
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| CN113909744B (en) * | 2021-10-12 | 2024-04-30 | 湖北童河通讯器材科技有限公司 | Solder conveying device for cold welding machine |
| CN114535749A (en) * | 2022-02-24 | 2022-05-27 | 南京工业大学 | Multi-angle self-adjustment wire feeding device based on double-wire GTAW electric arc additive manufacturing |
| CN115194182A (en) * | 2022-06-30 | 2022-10-18 | 中船重工信息科技有限公司 | Arc additive manufacturing conformal scanning nozzle height measurement and control device and method |
| FR3142109A1 (en) * | 2022-11-23 | 2024-05-24 | Institut De Recherche Technologique Jules Verne | Additive manufacturing of a metal part |
| CN116372324B (en) * | 2023-05-22 | 2024-03-22 | 北京航空航天大学宁波创新研究院 | Arc additive multi-wire feeding device and using method thereof |
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| CN207593019U (en) * | 2017-09-11 | 2018-07-10 | 江苏阿斯美特精工科技有限公司 | A kind of adjustable more wire feeders in position |
| CN110421231B (en) * | 2019-09-06 | 2023-09-15 | 广东省焊接技术研究所（广东省中乌研究院） | Paraxial wire feeder and additive manufacturing system |
| CN111014885B (en) * | 2019-12-27 | 2021-02-19 | 北京理工大学 | Multi-filament efficient forming additive manufacturing device |
| CN111347132A (en) * | 2020-01-22 | 2020-06-30 | 天津大学 | Multi-wire TIG electric arc additive manufacturing device |
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