CN111590189A - Welding material increase welding-following ultrasonic impact device and operation method - Google Patents
Welding material increase welding-following ultrasonic impact device and operation method Download PDFInfo
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- CN111590189A CN111590189A CN202010523184.5A CN202010523184A CN111590189A CN 111590189 A CN111590189 A CN 111590189A CN 202010523184 A CN202010523184 A CN 202010523184A CN 111590189 A CN111590189 A CN 111590189A
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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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 the technical field of 3D printing, in particular to a welding additive welding-following ultrasonic impact device and an operation method thereof. The invention can convert the damage energy of earthquake waves to the building, and block the influence of the earthquake waves on the building foundation, thereby avoiding the vibration to the overground part of the building. The ultrasonic impact real-time impact is carried out on the welding layer or the welding seam, so that the requirement of modern welding additive manufacturing can be met; can meet the requirements of different impact pressures and uneven weldment; the ultrasonic impact position and the position distance of the welding gun can be adjusted according to requirements, and the adjustment along with the lag time of welding time is adapted; the ultrasonic transmission efficiency is high, and the ultrasonic impact treatment effect is good.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a welding additive welding-following ultrasonic impact device and an operation method.
Background
With the development of science and technology, the additive manufacturing technology has wind-induced cloud surge, compared with other additive manufacturing, the welding additive manufacturing has low cost and high efficiency, and particularly, the additive manufacturing advantages of some large-scale components are more obvious, so that the welding additive manufacturing grows more rapidly. In addition, the welding technology is also widely applied to national defense war industry and national civilian life, and has wide application range in the aspects of ships, vehicles, pressure vessels and the like. However, welding is a local heating melting and then cooling to form a welding seam or a welding layer, which is a local metallurgical process in nature, inevitably generates many welding defects such as oxidation, pores, coarse metallographic structure grains, stress, strain, cracks and the like, and influences the material, geometric accuracy and service performance of the product.
In order to improve the welding quality, many methods for reducing or eliminating the welding defects have been explored, and among them, the impact vibration of the welding seam is one of the effective methods. In recent years, a newer and very promising Ultrasonic Impact Treatment (UIT) technology developed by the former Soviet Union shipbuilding has attracted attention for improving the welding quality.
And the ultrasonic impact treatment along with welding is realized by real-time ultrasonic impact in the generation process of the welded additive product, so that the effect is better: on one hand, the crystal grains can be refined, the structure is improved, and the defects are reduced; on the other hand, the ultrasonic welding impact treatment is carried out due to the centralized working procedures, so that the production efficiency is higher.
The principle of ultrasonic welding-following impact treatment is as follows: the mechanical vibration energy of ultrasonic frequency is instantly transmitted to the welding line under certain pressure, so that a plastic deformation layer with certain depth is generated on the surface of the welding joint in a certain area taking the welding line and a parent metal transition area as the center, thereby effectively improving the appearance shape of the welding toe, enabling the welding toe to be in smooth transition, reducing the stress concentration degree of the welding joint, even generating compressive stress on the surface, refining grains and compact tissues at the same time, and improving the tissues of the joint surface layer, thereby improving the fatigue strength and the fatigue life of the welding joint after ultrasonic impact treatment.
At present, the technical research of improving the welding quality and reducing the welding defects by ultrasonic impact treatment is started in China, but the quantity is small.
Such as: "Effect of organic power on location micro structure, mechanical property of the organic alloy by organic assisted Laser-MIG hybrid well" was published by Jia Liu et al, Changchun science and Technology university, in 2019, Jia Liu et al, 2019; in 2019, a surface ultrasonic impact device (belonging to post-welding impact) suitable for various appearance structures is designed by China's special steel science and technology company Xie Yutian and the like; the patent of 'reducing or eliminating welding deformation and residual stress along with welding ultrasonic impact' is disclosed in 2015 by Hewenxiong, et al, Harbin university of industry.
The existing welding-following ultrasonic impact treatment stays in theoretical research, few technical schemes and specific structures exist, the welding-following ultrasonic impact technology is not applied to welding additive manufacturing at present, corresponding technical schemes do not exist, and further development and improvement are needed:
1 does not take into account the ultrasonic impact pressure adjustment. However, the actual layer thickness varies within a certain range and therefore varies when the sonotrode is loaded. So that the ultrasound transducer is liable to deviate from resonance.
2 the existing welding-following ultrasonic impact mode is as follows: the welding gun is welded above the weldment, and the ultrasonic impact head impacts behind the weldment and only adapts to a single-layer weld. Therefore, it cannot be applied to welding additive manufacturing.
3, the interval adjustment of the welding point position and the welding impact following point position is not considered: relevant research in the industry proves that the welding impact point is located in the welding high-temperature plastic area, the effect is the best, obviously, the welding process is different, the weldment is different, the optimal distance from the welding high-temperature plastic area to the welding gun is different, but the adjustment of the interval between the welding point and the welding impact point is not considered in the prior art. That is, the lag time adjustment of the impact along with welding is not considered, and the impact point along with welding is difficult to be ensured to be positioned in a welding high-temperature plastic area.
4, the mode of transmitting the ultrasonic vibration to the weldment is not determined, but the contact mode is directly related to the ultrasonic transmission efficiency, and on the other hand, along with welding ultrasonic impact, the ultrasonic vibrator moves along with a welding gun on a welding layer or a welding seam and must move flexibly. The existing welding-following ultrasonic impact head is in contact with the plane of a welding seam, although ultrasonic transmission is good, the movement is difficult, and an ultrasonic vibrator is easy to deflect.
And 5, welding material increase manufacturing is carried out along with welding ultrasonic impact, a welding gun and an ultrasonic vibrator move synchronously in a three-dimensional coordinate, and the moving load of the welding material increase equipment in the height direction is increased due to the self weight of the ultrasonic vibrator.
6 in the process of welding ultrasonic impact material increase manufacturing, a welding gun and an ultrasonic vibrator move synchronously and need to be connected into a component, but need to be separated by a certain distance (the distance between the welding gun and the vibrator is adjusted to obtain the best processing effect), so the welding gun and the vibrator are two different points in space. Therefore, in order to move the welding torch and the ultrasonic transducer in synchronization with each other, it is necessary to specify the welding torch movement locus.
Therefore, the ultrasonic impact treatment is used for welding additive manufacturing, no matter the concept and the method have many blind areas and difficulties, and a technological breakthrough is urgently needed.
The invention provides a welding additive manufacturing welding-following ultrasonic impact device and an operation method, which can carry out ultrasonic impact real-time impact on a welding layer or a welding seam and can meet the requirement of modern welding additive manufacturing; can meet the requirements of different impact pressures and uneven weldment; the deflection of the ultrasonic vibrator is reduced, and the ultrasonic vibrator stably moves along with a welding gun; the ultrasonic impact position and the position distance of the welding gun can be adjusted according to requirements, and the adjustment along with the lag time of welding time is adapted; the ultrasonic transmission efficiency is high, and the ultrasonic impact treatment effect is good; the system is simple, the use is convenient, the technology is advanced, the method is novel, and the method is practical and reliable.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an ultrasonic impact device for welding additive material while welding and an operation method thereof, which can perform ultrasonic impact real-time impact on a welding layer or a welding seam and can meet the requirement of modern welding additive material manufacturing; can meet the requirements of different impact pressures and uneven weldment; the deflection of the ultrasonic vibrator is reduced, and the ultrasonic vibrator stably moves along with the welding gun. The ultrasonic impact position and the position distance of the welding gun can be adjusted according to requirements, and the adjustment along with the lag time of welding time is adapted; the ultrasonic transmission efficiency is high, and the ultrasonic impact treatment effect is good; the system is simple, the use is convenient, the technology is advanced, the method is novel, and the method is practical and reliable.
In order to realize the purpose of the invention, the invention adopts the technical scheme that:
the invention discloses a welding additive welding-following ultrasonic impact device which comprises a welding gun, a connecting sleeve assembly and an ultrasonic vibrator, wherein the welding gun is connected with the connecting sleeve assembly through the welding gun connecting assembly, the ultrasonic vibrator is sleeved in the connecting sleeve assembly, a steel ball at the bottom end of the ultrasonic vibrator penetrates through the connecting sleeve assembly and then is in contact with a welding layer, and the welding layer is subjected to welding-following ultrasonic impact treatment.
The welding gun connecting assembly comprises a welding gun, a welding gun fastening screw, a welding gun connecting butt strap screw, a welding gun connecting plate fastening screw and a welding gun connecting butt strap, wherein a welding gun hole for inserting the welding gun is formed in the welding gun connecting butt strap, and a welding gun fastening screw hole which is used for inserting the welding gun fastening screw and is communicated with the welding gun hole is formed in the outer wall of the welding gun connecting butt strap; be equipped with on the welder connecting plate and be used for adapter sleeve subassembly male connecting trepanning, be equipped with welder connecting plate holding screw on the lateral wall of welder connecting plate, the welder connecting plate with be equipped with a plurality of regulation holes that are used for welder to connect the strap fix with screw on the inner of welder connection strap, fix with different regulation holes through welder connection strap screw, realize the distance between welder and the ultrasonic vibrator and adjust.
The welding gun adopts a unidirectional linear motion track for welding additive, so that the track of the ultrasonic vibrator is consistent with that of the welding gun; the plurality of unidirectional linear tracks approach the cross section layer of the product, and the multilayer cross section approaches the product.
The ultrasonic vibrator comprises a steel ball, an amplitude transformer connecting screw, an energy converter, an electric fan and a vibrator sleeve, wherein the amplitude transformer is of a conical structure, the steel ball is arranged at the bottom of the amplitude transformer, and the top of the steel ball is connected with the bottom of the vibrator sleeve through the amplitude transformer connecting screw; the transducer is arranged in the vibrator sleeve, the electric fan is arranged at the top of the vibrator sleeve, and a heat dissipation window is arranged on the side wall of the vibrator sleeve;
the connecting sleeve component comprises a pre-tightening locking ring, a connecting sleeve set screw, a steel ball retaining sleeve, a retaining sleeve gasket, a retaining sleeve locking ring, a rotation stopping pin, a pull rope support, a connecting sleeve, an elastic ring and a pre-tightening ring, wherein the inner cavity of the connecting sleeve is matched with the external shape of the ultrasonic vibrator, the pre-tightening ring is arranged on the top of the inner wall of the connecting sleeve, the pre-tightening locking ring used for locking the pre-tightening ring is arranged on the outer portion of the pre-tightening ring, the elastic ring is arranged between the pre-tightening ring and the top of the ultrasonic vibrator, the steel ball retaining sleeve is arranged at the bottom of the connecting sleeve, and the steel ball retaining sleeve is connected with the connecting sleeve.
And a rotation stopping pin for preventing the oscillator sleeve and the ultrasonic oscillator from rotating on the inner circumference of the connecting sleeve is arranged below the side wall of the connecting sleeve, and through holes for inserting the rotation stopping pin are formed in the oscillator sleeve and the ultrasonic oscillator.
One side of the connecting sleeve is connected with a 3D moving upright post of the gantry welding machine through a connecting sleeve set screw, the top of the 3D moving upright post of the gantry welding machine is fixed on a transverse pulley of the gantry welding machine, and the transverse pulley of the gantry welding machine is matched with a transverse sliding rail of the gantry welding machine to slide; the outer wall of the transverse sliding rail of the gantry welding machine is connected with a fixed pulley support, a fixed pulley on the fixed pulley support is sleeved with a pull rope, one end of the pull rope is connected with a pull rope support below the side wall of the connecting sleeve, and the other end of the pull rope is connected with a balancing weight.
An operation method of a welding additive welding-following ultrasonic impact device comprises the following steps:
step one, according to the requirements of the welding-following ultrasonic impact treatment process, rotating a pre-tightening ring, adjusting the pre-pressure of an ultrasonic vibrator and locking the pre-tightening ring through a pre-tightening locking ring;
firstly, adjusting the length of a welding gun and an ultrasonic vibrator link assembly and locking the welding gun to connect with a butt strap screw according to the requirements of the welding-following ultrasonic impact treatment process;
loosening a welding gun fastening screw, and adjusting a welding gun to enable the height of the welding gun to be suitable for welding additive;
starting the ultrasonic power supply, determining whether to turn on an ultrasonic vibrator transducer electric fan according to cooling requirements, and positioning a welding gun at a safe height;
moving the 3D moving upright post of the gantry welding machine to enable the welding gun to be positioned at the welding material adding or welding seam starting position, and starting the welding gun to work;
step six, the 3D moving upright of the gantry welding machine moves linearly, the welding gun welds material increase in front, the ultrasonic vibrator carries out ultrasonic impact treatment along the welding gun until the linear movement is finished, the welding gun is closed, then the 3D moving upright continues to move beyond a stroke which is larger than the distance between the welding gun and the ultrasonic vibrator along the linear path, and the 3D moving upright rises to a safe height;
and seventhly, continuously moving the 3D moving stand column, positioning the welding gun at the next linear welding additive initial position in the welding layer according to the one-way linear welding additive track approximation rule, and starting the next linear welding additive and welding-following ultrasonic treatment. A plurality of parallel welding linear tracks approach the cross section layer of the component, and a plurality of layers of cross sections approach the 3D shape of the product, so that the welding additive manufacturing and the welding-following ultrasonic treatment of the product are completed;
and step eight, closing the welding gun and the ultrasonic power supply, moving the 3D moving upright post to the height of the safety plane, and finishing welding material increase and ultrasonic impact.
The invention has the beneficial effects that:
1) the invention applies the welding-following ultrasonic impact to welding additive layered manufacturing, realizes the real-time ultrasonic impact treatment of welding additives, has good treatment effect, and greatly improves the welding additive quality and the production efficiency.
2) The ultrasonic vibrator can conveniently adjust the ultrasonic impact pressure and the ultrasonic impact lag time along with welding, adapt to the thickness change of a welding layer or a welding seam, and maintain the resonance of the ultrasonic vibrator. The ultrasonic vibrator can reduce the moving friction and deflection of the ultrasonic vibrator along with welding, stabilize the ultrasonic impact treatment process, meet the technological requirements of ultrasonic impact treatment along with welding, and have high ultrasonic transmission efficiency.
3) The system is simple, convenient to construct, practical, reliable, easy to operate and intelligent to control.
Drawings
FIG. 1 is a schematic illustration of a weld-on ultrasonic impact treatment protocol of the present invention;
FIG. 2 is a schematic view of a unidirectional parallel straight welding track of a welding gun according to the present invention;
FIG. 3 is a cross-sectional view of a welding-following ultrasonic impacting device of the present invention;
FIG. 4 is a cross-sectional view of a weld gun and connection assembly of the present invention;
FIG. 5 is a cross-sectional view of the connecting sleeve assembly of the present invention;
FIG. 6 is a cross-sectional view of an ultrasonic transducer according to the present invention;
FIG. 7 is a cross-sectional view of the counterweight and gantry welder of the present invention.
In the figure 100-welding gun connection assembly, 101-welding gun, 102-welding gun set screw, 103-welding gun connection strap screw, 104-welding gun connection plate, 105-welding gun connection plate set screw, 106-welding gun connection strap, 200-connection sleeve assembly, 201-pretension lock ring, 202-connection sleeve set screw, 203-steel ball retaining sleeve, 204-retaining sleeve gasket, 205-retaining sleeve lock ring, 206-rotation stop pin, 207-pull rope support, 208-connection sleeve, 209-elastic ring, 210-pretension ring, 300-ultrasonic vibrator, 301-steel ball, 302-amplitude transformer, 303-amplitude transformer connection screw, 304-transducer, 305-electric fan, 306-oscillator sleeve, 400-weight block and gantry welding machine, 401-weight block, 402-pulling rope, 403-fixed pulley, 404-transverse sliding rail of gantry welding machine, 405-transverse pulley of gantry welding machine and 406-3D moving upright post of gantry welding machine.
Detailed Description
The invention is further illustrated below:
referring to figures 1-7 of the drawings,
the invention discloses a welding additive welding-following ultrasonic impact device, which is described as follows: the connecting sleeve 208 is connected with a 3D moving upright post 406 of the gantry welding machine, the ultrasonic vibrator 300 is arranged on the connecting sleeve assembly 200 in a floating mode, the front end of an amplitude transformer 302 of the ultrasonic vibrator is subjected to ultrasonic impact treatment on a welding layer through a steel ball 301, the moving friction of the ultrasonic vibrator along with welding is reduced, and the ultrasonic vibrator is prevented from deflecting; the upper part of the connecting sleeve is provided with a pre-tightening ring 210 and an elastic ring 209 which are used for adjusting the pre-pressure of ultrasonic impact; the thickness change of a welding layer or a welding seam is adapted, the ultrasonic vibrator load is stabilized, and the resonant frequency is stabilized. The lower part of the connecting sleeve is provided with a steel ball retaining sleeve 203 which ensures that the steel ball can move along with the ultrasonic vibrator and prevents the ultrasonic vibrator from falling; the ball retainer is in turn connected to a welding gun 101 by a length adjustable connection assembly 100. The welding gun welds the additive in front, and the ultrasonic vibrator impacts along with welding, so that the welding layer or welding seam is subjected to ultrasonic impact treatment along with welding.
The concrete structure is as follows:
1 ultrasonic vibrator
After the A amplitude transformer 302 and the transducer 304 are combined, the A amplitude transformer is positioned in the vibrator sleeve 306 through a mounting flange arranged at a node, and ultrasonic is prevented from being transmitted to the vibrator sleeve; and then the amplitude transformer is connected with the oscillator sleeve by using an amplitude transformer connecting screw 303. The upper end of the vibrator sleeve is provided with an electric fan 305 and an air cooling transducer, the middle part of the vibrator sleeve is provided with a heat dissipation hole for heat dissipation, and the vibrator sleeve is conveniently connected with an ultrasonic power supply.
The front end of the B amplitude transformer performs ultrasonic impact treatment on the welding layer or the welding seam through the steel ball 301, and meanwhile, the friction of the ultrasonic vibrator moving along with welding is reduced, and the deflection of the ultrasonic vibrator is reduced.
2, connecting sleeve component:
the a connection sleeve 208 is connected with the gantry welder 3D moving column 406 through the connection sleeve set screw 202.
The B ultrasonic vibrator 300 is connected with a vibrator sleeve 306 and then is arranged on a connecting sleeve 208 in a floating mode, a pre-tightening ring 210 and an elastic ring 209 are arranged on the upper portion of the connecting sleeve 208 and used for adjusting the pre-pressure of ultrasonic impact, and the pre-tightening ring is locked through a pre-tightening locking ring 201; the thickness change of a welding layer or a welding seam is adapted, the ultrasonic vibrator load is stabilized, and the resonant frequency is stabilized. The lower part of the connecting sleeve is provided with a steel ball retaining sleeve 203, and the steel ball retaining sleeve 203 is locked by a retaining sleeve locking ring 205, so that the steel ball 301 can move along with the ultrasonic vibrator 300 and the ultrasonic vibrator is prevented from falling; a retaining sleeve gasket 204 is arranged at the joint of the steel ball retaining sleeve 203 and the connecting sleeve 208.
The side of the C connecting sleeve is provided with a rotation stopping pin 206 which prevents the oscillator sleeve and the ultrasonic oscillator from rotating on the inner circumference of the connecting sleeve.
3, welding gun connecting assembly:
the welding gun 101 is fixed on the welding gun connection butt strap 106 through the welding gun set screw 102, and the height of the welding gun can be independently adjusted by loosening the welding gun set screw. And then the welding gun connection butt strap is connected with a welding gun connection plate 104 through a welding gun connection butt strap screw 103, and then the welding gun connection plate 104 is fixed on the side part of the steel ball retaining sleeve 203 through a welding gun connection plate fastening screw 105. The welding gun connection butt strap is provided with a kidney-shaped hole groove for adjusting the distance between the welding gun and the ultrasonic vibrator to adjust the ultrasonic impact lag time along with welding.
4, balancing weight and gantry welding machine:
one side of the connecting sleeve 208 is connected with a 3D moving upright post 406 of the gantry welding machine through a connecting sleeve set screw 202, the top of the 3D moving upright post 406 of the gantry welding machine is fixed on a transverse pulley 405 of the gantry welding machine, and the transverse pulley 405 of the gantry welding machine is matched with a transverse sliding rail 404 of the gantry welding machine to slide; the transverse pulley 405 of the gantry welding machine is provided with a fixed pulley bracket and a fixed pulley 403, the fixed pulley is sleeved with a pull rope 402, one end of the pull rope 402 is connected with the pull rope support 207 below the side wall of the connecting sleeve 208, the other end of the pull rope 402 is connected with a balancing weight 401, the balancing weight 401 balances the weight of the connecting sleeve assembly 200 through the pull rope 402, and the load of the gantry welding machine 3D moving upright 406 moving up and down is reduced.
The operation method comprises the following steps:
step one, according to the requirements of the welding-following ultrasonic impact treatment process, rotating a pre-tightening ring 210, adjusting the pre-pressure of an ultrasonic vibrator and locking the pre-tightening ring through a pre-tightening locking ring 201;
secondly, adjusting the length L of the welding gun and the ultrasonic vibrator link assembly and locking the welding gun to connect with the strap screw 103 according to the requirements of the welding-following ultrasonic impact treatment process;
step three, loosening a welding gun set screw 102, and adjusting a welding gun 101 to enable the height of the welding gun to be suitable for welding additive;
step four, starting an ultrasonic power supply (simultaneously determining whether to turn on an ultrasonic vibrator transducer fan 305 according to cooling requirements), and positioning a welding gun at a safe height;
moving the 3D moving upright post 406 of the gantry welding machine to enable the welding gun to be positioned at the welding material adding or welding seam starting position, and starting the welding gun to work;
step six, the 3D moving upright of the gantry welding machine moves linearly, a welding gun welds material increase in front of the gantry welding machine, the ultrasonic vibrator carries out ultrasonic impact treatment along the welding gun until the linear movement is finished, the welding gun is closed, and then the 3D moving upright continues to overrun for a distance (which is larger than the distance L between the welding gun and the ultrasonic vibrator) along the straight line; the 3D moving upright column rises to a safe height;
and seventhly, continuously moving the 3D moving upright column, positioning a welding gun at the next linear welding additive initial position in the welding layer according to a one-way linear welding additive track approximation rule (figure 2), and starting next linear welding additive and welding-following ultrasonic treatment. The multiple parallel welding linear tracks approach the cross section of the component, and the multilayer cross section approaches the 3D shape of the product. Completing the welding additive manufacturing and welding-following ultrasonic treatment of the product;
and step eight, closing the welding gun and the ultrasonic power supply, moving the 3D moving upright post to the height of the safety plane, and finishing welding material increase and ultrasonic impact.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the drawings or directly or indirectly applied to the related technical fields are included in the scope of the present invention.
Claims (7)
1. The utility model provides a welding vibration material disk is along with welding ultrasonic impact device which characterized in that: the welding gun is connected with the connecting sleeve assembly through the welding gun connecting assembly, the ultrasonic vibrator is sleeved in the connecting sleeve assembly, a steel ball at the bottom end of the ultrasonic vibrator penetrates through the connecting sleeve assembly and then contacts with a welding layer, and the welding layer is subjected to welding-following ultrasonic impact treatment.
2. The welding additive welding ultrasonic impacting device of claim 1, wherein: the welding gun connecting assembly comprises a welding gun, a welding gun fastening screw, a welding gun connecting butt strap screw, a welding gun connecting plate fastening screw and a welding gun connecting butt strap, wherein a welding gun hole for inserting the welding gun is formed in the welding gun connecting butt strap, and a welding gun fastening screw hole which is used for inserting the welding gun fastening screw and is communicated with the welding gun hole is formed in the outer wall of the welding gun connecting butt strap; the welding gun connecting plate is provided with a connecting sleeve hole for inserting the connecting sleeve component, the outer side wall of the welding gun connecting plate is provided with a welding gun connecting plate fastening screw, and the inner end of the welding gun connecting plate and the welding gun connecting butt strap is provided with a plurality of adjusting holes for fixing the welding gun connecting butt strap screws.
3. The welding additive welding ultrasonic impacting device of claim 2, wherein: the welding gun adopts a unidirectional linear motion track for welding additive, so that the track of the ultrasonic vibrator is consistent with that of the welding gun; the plurality of unidirectional linear tracks approach the cross section layer of the product, and the multilayer cross section approaches the product.
4. The welding additive welding ultrasonic impacting device of claim 1, wherein: the ultrasonic vibrator comprises a steel ball, an amplitude transformer connecting screw, an energy converter, an electric fan and a vibrator sleeve, wherein the amplitude transformer is of a conical structure, the steel ball is arranged at the bottom of the amplitude transformer, and the top of the steel ball is connected with the bottom of the vibrator sleeve through the amplitude transformer connecting screw; the transducer is arranged in the vibrator sleeve, the electric fan is arranged at the top of the vibrator sleeve, and a heat dissipation window is arranged on the side wall of the vibrator sleeve;
the connecting sleeve component comprises a pre-tightening locking ring, a connecting sleeve set screw, a steel ball retaining sleeve, a retaining sleeve gasket, a retaining sleeve locking ring, a rotation stopping pin, a pull rope support, a connecting sleeve, an elastic ring and a pre-tightening ring, wherein the inner cavity of the connecting sleeve is matched with the external shape of the ultrasonic vibrator, the pre-tightening ring is arranged on the top of the inner wall of the connecting sleeve, the pre-tightening locking ring used for locking the pre-tightening ring is arranged on the outer portion of the pre-tightening ring, the elastic ring is arranged between the pre-tightening ring and the top of the ultrasonic vibrator, the steel ball retaining sleeve is arranged at the bottom of the connecting sleeve, and the steel ball retaining sleeve is connected with the connecting sleeve.
5. The welding additive welding ultrasonic impacting device of claim 4, wherein: and a rotation stopping pin for preventing the oscillator sleeve and the ultrasonic oscillator from rotating on the inner circumference of the connecting sleeve is arranged below the side wall of the connecting sleeve, and through holes for inserting the rotation stopping pin are formed in the oscillator sleeve and the ultrasonic oscillator.
6. The welding additive welding ultrasonic impacting device of claim 5, wherein: one side of the connecting sleeve is connected with a 3D moving upright post of the gantry welding machine through a connecting sleeve set screw, the top of the 3D moving upright post of the gantry welding machine is fixed on a transverse pulley of the gantry welding machine, and the transverse pulley of the gantry welding machine is matched with a transverse sliding rail of the gantry welding machine to slide; the outer wall of the transverse sliding rail of the gantry welding machine is connected with a fixed pulley support, a fixed pulley on the fixed pulley support is sleeved with a pull rope, one end of the pull rope is connected with a pull rope support below the side wall of the connecting sleeve, and the other end of the pull rope is connected with a balancing weight.
7. An operation method of a welding material increase welding-following ultrasonic impact device is characterized by comprising the following steps:
step one, according to the requirements of the welding-following ultrasonic impact treatment process, rotating a pre-tightening ring, adjusting the pre-pressure of an ultrasonic vibrator and locking the pre-tightening ring through a pre-tightening locking ring;
firstly, adjusting the length of a welding gun and an ultrasonic vibrator link assembly and locking the welding gun to connect with a butt strap screw according to the requirements of the welding-following ultrasonic impact treatment process;
loosening a welding gun fastening screw, and adjusting a welding gun to enable the height of the welding gun to be suitable for welding additive;
starting the ultrasonic power supply, determining whether to turn on an ultrasonic vibrator transducer electric fan according to cooling requirements, and positioning a welding gun at a safe height;
moving the 3D moving upright post of the gantry welding machine to enable the welding gun to be positioned at the welding material adding or welding seam starting position, and starting the welding gun to work;
step six, the 3D moving upright of the gantry welding machine moves linearly, the welding gun welds material increase in front, the ultrasonic vibrator carries out ultrasonic impact treatment along the welding gun until the linear movement is finished, the welding gun is closed, then the 3D moving upright continues to move beyond a stroke which is larger than the distance between the welding gun and the ultrasonic vibrator along the linear path, and the 3D moving upright rises to a safe height;
step seven, the 3D moving upright post continues to move, the welding gun is positioned at the initial position of the next linear welding additive in the welding layer according to the approximation rule of the unidirectional linear welding additive track, the next linear welding additive and the welding-following ultrasonic treatment are started, the multiple parallel welding linear tracks approximate the cross section layers of the component, the multilayer cross sections approximate the 3D body of the product, and the welding additive manufacturing and the welding-following ultrasonic treatment of the product are completed;
and step eight, closing the welding gun and the ultrasonic power supply, moving the 3D moving upright post to the height of the safety plane, and finishing welding material increase and ultrasonic impact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523184.5A CN111590189B (en) | 2020-06-10 | 2020-06-10 | Welding additive welding ultrasonic impact device and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523184.5A CN111590189B (en) | 2020-06-10 | 2020-06-10 | Welding additive welding ultrasonic impact device and operation method |
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| Publication Number | Publication Date |
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| CN111590189A true CN111590189A (en) | 2020-08-28 |
| CN111590189B CN111590189B (en) | 2023-07-28 |
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| CN202010523184.5A Active CN111590189B (en) | 2020-06-10 | 2020-06-10 | Welding additive welding ultrasonic impact device and operation method |
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| CN113102862A (en) * | 2021-05-13 | 2021-07-13 | 重庆大学 | Ultrasonic-assisted electric arc additive manufacturing method |
| CN114318331A (en) * | 2021-12-29 | 2022-04-12 | 浙江工业大学 | Ultrasonic semi-solid roll forging composite laser cladding forming method and device |
| CN114643403A (en) * | 2022-04-18 | 2022-06-21 | 天津工业大学 | Terminal welding device of ultrasonic continuous welding manipulator |
| CN117548807A (en) * | 2024-01-12 | 2024-02-13 | 山东方大杭萧钢构科技有限公司 | Ultrasonic impact equipment with welding |
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