CN216882199U - Ultrasonic-assisted arc spot welding device - Google Patents
Ultrasonic-assisted arc spot welding device Download PDFInfo
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- CN216882199U CN216882199U CN202220422993.1U CN202220422993U CN216882199U CN 216882199 U CN216882199 U CN 216882199U CN 202220422993 U CN202220422993 U CN 202220422993U CN 216882199 U CN216882199 U CN 216882199U
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- 238000003466 welding Methods 0.000 title claims abstract description 113
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 24
- 229910052721 tungsten Inorganic materials 0.000 claims description 24
- 239000010937 tungsten Substances 0.000 claims description 24
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- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 4
- 238000000265 homogenisation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 230000004927 fusion Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses an ultrasonic-assisted arc spot welding device which comprises a main mounting frame, a clamp, a reversing valve, a sliding table cylinder mounting frame, an ultrasonic output device, a to-be-welded thin plate, a working platform, an electric ball screw linear guide rail sliding table, a single-shaft motion controller, an ultrasonic generator, an auxiliary mounting frame, a manual ball screw linear guide rail sliding table, a welding gun, an electric ball screw linear guide rail sliding table mounting base plate, a bottom plate, a welding machine, an air compressor and an air bottle. The utility model further improves the ultrasonic power, has better ultrasonic effect in the molten pool, refines the grains of the spot welding seam, promotes the homogenization of components, reduces the defect of welding pores and improves the quality of spot welding joints.
Description
Technical Field
The utility model belongs to the technical field of welding metallurgy, and particularly relates to an ultrasonic-assisted arc spot welding device.
Background
The spot weld for arc spot welding is made by passing one metal over the lap joint and into the other. The welding gun and the weldment are not moved. For the sheet, the upper sheet does not need to be perforated first, and the weld points are fusion welded. The welding gun adopts a non-melting tungsten electrode as an electrode and carries out welding under the protection of inert gas. Tungsten arc spot welding has the advantages that: can accurately control welding heat input, and has low equipment cost and simple operation. But also has some defects, such as poor metallurgical performance of spot welding seams, which is mainly reflected in the defects of thick welding seam structures, easy generation of welding pores, cracks and the like. These deficiencies affect spot weld joint quality. It is therefore worth intensive research as to how the quality of spot welded joints can be improved.
The ultrasonic wave is used as a clean energy source, can generate acoustic cavitation and acoustic flow effect when being transmitted in the metal melt, can influence the melt solidification process under the action of the acoustic effect, and achieves the purpose of refining the structure by means of crushing dendritic crystals, promoting heterogeneous nucleation and the like. Therefore, the related scholars apply the ultrasound to the field of fusion welding and obtain more ideal experimental results. Therefore, it is inspired by the relevant scholars to apply ultrasound to the field of arc spot welding.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems of relatively large welding spot grains, welding pores and crack defects in the existing arc spot welding technology.
In order to solve the technical problems, the utility model provides the following technical scheme:
an ultrasonic-assisted arc spot welding device comprises a main mounting frame, a clamp, a reversing valve, a sliding table cylinder mounting frame, an ultrasonic output device, a to-be-welded thin plate, a working platform, an electric ball screw linear guide rail sliding table, a single-shaft motion controller, an ultrasonic generator, an auxiliary mounting frame, a manual ball screw linear guide rail sliding table, a welding gun, an electric ball screw linear guide rail sliding table mounting base plate, a bottom plate, a welding machine, an air compressor and an air bottle; the main mounting frame is fixed on the bottom plate, the sliding table cylinder mounting frame is connected on the main mounting frame, the sliding table cylinder is fixed on the sliding table cylinder mounting frame, the sliding table cylinder is connected with the ultrasonic output device mounting frame, the ultrasonic output device is fixed on the ultrasonic output device mounting frame, the adjustment of the position of the ultrasonic output device in the vertical direction is realized through the sliding table cylinder, the clamp is fixedly connected with the working platform, the clamping of a sheet to be welded on the working platform is realized through the clamp, the working platform is fixedly connected with the electric ball screw linear guide rail sliding table, the adjustment of the position of the working platform in the one-dimensional direction is realized through the electric ball screw linear guide rail sliding table, the electric ball screw linear guide rail sliding table is fixedly connected with the electric ball screw linear guide rail sliding table mounting base plate, the auxiliary mounting frame is fixedly connected with the bottom plate, and the manual ball screw linear guide rail sliding table is fixedly connected with the auxiliary mounting frame, welder links to each other with manual ball linear guide slip table, realizes the regulation of welder position in the vertical direction through manual ball linear guide slip table, welder passes through the wire and is connected with the welding machine, ultrasonic output device passes through the wire and is connected with supersonic generator, the slip table cylinder passes through the trachea and links to each other with the switching-over valve, realizes the switching-over work of slip table cylinder through the switching-over valve, the switching-over valve passes through the trachea and links to each other with the gas cylinder, the gas cylinder passes through the trachea and is connected with air compressor.
Preferably, the ultrasonic output device further comprises an ultrasonic transducer, an ultrasonic horn, an ultrasonic tool head and a flange, the ultrasonic transducer is connected with the ultrasonic horn through the flange, the ultrasonic horn is connected with the ultrasonic tool head, the flange is connected with the ultrasonic output device mounting frame, and the ultrasonic transducer is connected with an ultrasonic generator through a lead.
Preferably, the ultrasonic transducer is provided with a heat dissipation device.
Preferably, the welding gun comprises a tungsten needle clamp, a tungsten electrode, a flow guide piece and a ceramic nozzle, wherein the tungsten electrode is connected with the ceramic nozzle through the tungsten needle clamp and the flow guide piece.
Preferably, the ultrasonic output device is positioned coaxially opposite the welding gun.
Preferably, the work platform is provided with an air permeable grid allowing a welding gun to apply a spot welding arc through the air permeable grid.
Preferably, the electric ball screw linear guide rail sliding table placing base plate is provided with a through hole, and a welding gun is allowed to perform spot welding work through the through hole.
Preferably, the displacement accuracy of the electric ball screw linear guide rail sliding table and the manual ball screw linear guide rail sliding table is +/-0.01 mm. The speed adjusting range of the electric ball screw linear guide rail sliding table is 0-1000mm/s, and the adjusting precision is 0.01 mm/s.
Preferably, the sliding table cylinder is provided with a limiting block, the effective stroke is 75mm, and the bearing capacity of the working platform is not less than 100 kg.
Preferably, the welding machine comprises a direct current mode and an alternating current mode, the electric signal output by the ultrasonic generator is 20kHz-100kHz, the ultrasonic output power adjusting range is 1W-5000W, the ultrasonic generator comprises a continuous power output mode and a pulse power output mode, the pulse power frequency range of the pulse power output mode is 0.01Hz-2000Hz, the peak value and base value adjusting range is 1W-5000W, and the duty ratio is 0-100%.
The working principle is as follows: removing an oxide film on the surface of the to-be-welded thin plate, fixing the to-be-welded thin plate on a working platform through a clamp, opening a single-shaft motion controller, adjusting the positions of the to-be-welded thin plate and a tungsten electrode through the working platform, and taking the position of the tungsten electrode, which is 50mm away from the edge of the to-be-welded thin plate, as an initial position; determining the height of a tungsten electrode, namely the distance between the tip of the tungsten electrode and the surface of a thin plate to be welded is 3mm by adjusting a sliding table of a linear guide rail of a manual ball screw, wherein the adjustment precision is +/-0.01 mm; opening an air compressor and an air bottle, and controlling a reversing valve to enable a sliding table air cylinder to drive an ultrasonic tool head in an ultrasonic output device to be pressed onto the surface of the thin plate to be welded; opening a welding machine, determining a welding current mode and the welding current, and introducing protective gas; turning on an ultrasonic generator, determining ultrasonic parameters, performing arc spot welding and arc striking, wherein in the process of arc spot welding, after spot welding seams are melted, ultrasonic waves are transmitted into a spot welding molten pool through an ultrasonic tool head to generate an acoustic cavitation effect and an acoustic flow effect, and the solidification process of the molten pool is improved; after one-time arc spot welding work is finished, the reversing valve is controlled to enable the sliding table cylinder to drive the ultrasonic tool head in the ultrasonic output device to leave the sheet to be welded, the single-shaft motion controller drives the sheet to be welded on the working platform to move to the next spot welding position, then the reversing valve is controlled to enable the sliding table cylinder to drive the ultrasonic tool head in the ultrasonic output device to press the surface of the sheet to be welded, and then arc striking work is carried out; if a plurality of positions need spot welding, repeating the operation of the step six; when the welding is finished, the reversing valve is controlled to enable the sliding table cylinder to drive the ultrasonic tool head in the ultrasonic output device to leave the to-be-welded thin plate, the welding machine and the ultrasonic generator are closed, the air compressor and the air bottle are closed, the single-shaft motion controller is closed, and the welding operation is finished.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides an ultrasonic-assisted arc spot welding concept, namely, an ultrasonic generator is pressed at a position of a to-be-welded thin plate to be spot-welded, a welding gun and the ultrasonic generator are coaxially and oppositely arranged, the ultrasonic is started before arc spot welding is started, and the acoustic cavitation effect and the acoustic current effect of the ultrasonic act on a spot welding molten pool in the arc spot welding arc starting process, so that the solidification process of the molten pool is improved. Because engineering practice often needs a plurality of spot welding to connect large-size lap-jointed sheets together, the electric ball screw linear guide rail sliding table is adopted to drive the sheets to be welded to realize the adjustment of the position in the one-dimensional direction. The sliding table cylinder is provided with the limiting block, so that the stroke of the sliding table cylinder is effectively controlled, the pressure of the ultrasonic generating device acting on the to-be-welded thin plate is constant and moderate, and the deformation of the to-be-welded thin plate cannot be caused. The utility model further improves the ultrasonic power, has better ultrasonic effect in the molten pool, refines the grains of the spot welding seam, promotes the homogenization of components, reduces the defects of welding pores and improves the quality of spot welding joints.
Drawings
FIG. 1 is a schematic structural diagram of an ultrasonic-assisted arc spot welding apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an ultrasonic output device according to an embodiment of the present invention;
FIG. 3 is a schematic view of a torch according to an embodiment of the utility model;
FIG. 4 is a schematic view of a coaxial and opposite arrangement structure of the ultrasonic output device and the welding gun according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a working platform according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a mounting substrate of an electric ball screw linear guide rail sliding table according to an embodiment of the present invention.
The reference numbers illustrate:
1. a main mounting frame; 2. a clamp; 3. a diverter valve; 4. a sliding table cylinder; 5. a sliding table cylinder mounting rack; 6. an ultrasonic output device mounting rack; 7. an ultrasonic output device; 7-1, an ultrasonic transducer; 7-2, ultrasonic amplitude transformer; 7-3, an ultrasonic tool head; 7-4, a flange; 8. welding a thin plate to be welded; 9. a working platform; 10. an electric ball screw linear guide rail sliding table; 11. a single axis motion controller; 12. an ultrasonic generator; 13. a secondary mounting bracket; 14. a manual ball screw linear guide rail sliding table; 15. a welding gun; 15-1, a tungsten needle clamp; 15-2, tungsten electrode; 15-3, a flow guide piece; 15-4, a ceramic nozzle; 16. a base plate is arranged on the electric ball screw linear guide rail sliding table; 17. a base plate; 18. a welding machine; 19. an air compressor; 20. a gas cylinder.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
The embodiment is described with reference to fig. 1 to 6, and an ultrasonic-assisted arc spot welding device comprises a main mounting bracket 1, a clamp 2, a reversing valve 3, a slipway cylinder 4, a slipway cylinder mounting bracket 5, an ultrasonic output device mounting bracket 6, an ultrasonic output device 7, a thin plate 8 to be welded, a working platform 9, an electric ball screw linear guide rail slipway 10, a single-shaft motion controller 11, an ultrasonic generator 12, an auxiliary mounting bracket 13, a manual ball screw linear guide rail slipway 14, a welding gun 15, an electric ball screw linear guide rail placing slipway base plate 16, a bottom plate 17, a welding machine 18, an air compressor 19 and an air bottle 20, wherein the main mounting bracket 1 is fixedly connected with the bottom plate 17, the main mounting bracket 1 is fixedly connected with the slipway cylinder mounting bracket 5, the slipway cylinder 5 is fixedly connected with the slipway cylinder 4, the slipway cylinder 4 is connected with the ultrasonic output device mounting bracket 6, the position of the ultrasonic output device 7 in the vertical direction is adjusted through the sliding table air cylinder 4, the ultrasonic output device mounting frame 6 is fixedly connected with the ultrasonic output device 7, the clamp 2 is fixedly connected with the working platform 9, the clamp 2 is used for clamping a thin plate 8 to be welded on the working platform 9, the working platform 9 is fixedly connected with the electric ball screw linear guide sliding table 10, the position of the working platform 9 in the one-dimensional direction is adjusted through the electric ball screw linear guide sliding table 10, the electric ball screw linear guide sliding table 10 is fixedly connected with the electric ball screw linear guide sliding table mounting base plate 16, the auxiliary mounting frame 13 is fixedly connected with the base plate 17, the manual ball screw linear guide sliding table 14 is fixedly connected with the auxiliary mounting frame 13, the welding gun 15 is connected with the manual ball screw linear guide sliding table 14, and the position of the welding gun 15 in the vertical direction is adjusted through the manual ball screw linear guide sliding table 14, the welding gun 15 is connected with the welding machine 18 through a lead, the ultrasonic output device 7 is connected with the ultrasonic generator 12 through a lead, the sliding table cylinder 4 is connected with the reversing valve 3 through an air pipe, the reversing work of the sliding table cylinder 4 is realized through the reversing valve 3, the reversing valve 3 is connected with the air bottle 20 through an air pipe, and the air bottle 20 is connected with the air compressor 19 through an air pipe.
The ultrasonic output device 7 of this embodiment includes an ultrasonic transducer 7-1, an ultrasonic horn 7-2 and an ultrasonic tool head 7-3, the ultrasonic transducer 7-1 is connected to the ultrasonic horn 7-2 through a flange 7-4, the ultrasonic horn 7-2 is connected to the ultrasonic tool head 7-3, the flange 7-4 is connected to an ultrasonic output device mounting frame 6, the ultrasonic transducer 7-1 is connected to an ultrasonic generator 12 through a wire, and the ultrasonic transducer 7-1 has a heat dissipation device. The welding gun 15 comprises a tungsten needle clamp 15-1, a tungsten electrode 15-2, a flow guide part 15-3 and a ceramic nozzle 15-4, wherein the tungsten electrode 15-2 is connected with the ceramic nozzle 15-4 through the tungsten needle clamp 15-1 and the flow guide part 15-3. Ultrasonic output device 7 and 15 coaxial heart are placed relatively, work platform 9 is provided with ventilative square, allows welder 15 to apply spot welding electric arc through ventilative square, electronic ball linear guide rail slip table is laid base plate 16 and is opened a through-hole, allows welder 15 to carry out spot welding work through the through-hole. The displacement accuracy of the electric ball screw linear guide rail sliding table 10 and the manual ball screw linear guide rail sliding table 14 is +/-0.01 mm. The speed adjusting range of the electric ball screw linear guide rail sliding table 10 is 0-1000mm/s, and the adjusting precision is 0.01 mm/s. The sliding table cylinder 4 is provided with a limiting block, the effective stroke is 75mm, and the bearing capacity of the working platform 9 is not less than 100 kg. The welding machine 18 comprises a direct current mode and an alternating current mode, an electric signal output by the ultrasonic generator 12 is 20kHz-100kHz, the ultrasonic output power adjusting range is 1W-5000W, the ultrasonic generator 12 comprises a continuous power output mode and a pulse power output mode, the pulse power frequency range of the pulse power output mode is 0.01Hz-2000Hz, the peak value and base value adjusting range is 1W-5000W, and the duty ratio is 0-100%.
The working principle is as follows: the utility model provides an ultrasonic-assisted arc spot welding device, which is used for removing an oxide film on the surface of a to-be-welded thin plate 8, fixing the to-be-welded thin plate 8 on a working platform 9 through a clamp 2, opening a single-shaft motion controller 11, adjusting the positions of the to-be-welded thin plate 8 and a tungsten electrode 15-2 through the working platform 9, and taking the position of the tungsten electrode 15-2, which is 50mm away from the edge of the to-be-welded thin plate 8, as an initial position; determining the height of a tungsten electrode 15-2, namely the distance between the tip of the tungsten electrode 15-2 and the surface of a to-be-welded thin plate 8 is 3mm by adjusting a manual ball screw linear guide rail sliding table 14, wherein the adjustment precision is +/-0.01 mm; the air compressor 19 and the air bottle 20 are opened, and the slide table air cylinder 4 drives the ultrasonic tool head 7-3 in the ultrasonic output device 7 to press the surface of the thin plate 8 to be welded by controlling the reversing valve 3; opening the welding machine 18, determining a welding current mode and welding current, and introducing protective gas; turning on an ultrasonic generator 12, determining ultrasonic parameters, performing arc spot welding and arc striking, wherein in the process of arc spot welding, after spot welding seams are melted, ultrasonic waves are transmitted into a spot welding molten pool through an ultrasonic tool head 7-3 to generate an acoustic cavitation effect and an acoustic flow effect, and the solidification process of the molten pool is improved; after one-time electric arc spot welding work is finished, the reversing valve 3 is controlled to enable the sliding table cylinder 4 to drive the ultrasonic tool head 7-3 in the ultrasonic output device 7 to leave the to-be-welded thin plate 8, the single-shaft motion controller 11 drives the to-be-welded thin plate 8 on the working platform 9 to move to the next spot welding position, then the reversing valve 3 is controlled to enable the sliding table cylinder 4 to drive the ultrasonic tool head 7-3 in the ultrasonic output device 7 to be pressed onto the surface of the to-be-welded thin plate 8, and then electric arc spot welding arc striking work is carried out; if a plurality of positions need spot welding, repeating the operation of the step six; when the welding is finished, the reversing valve 3 is controlled to enable the sliding table cylinder 4 to drive the ultrasonic tool head 7-3 in the ultrasonic output device 7 to leave the thin plate 8 to be welded, the welding machine 18 and the ultrasonic generator 12 are closed, the air compressor 19 and the air bottle 20 are closed, the single-shaft motion controller 11 is closed, and the welding operation is finished.
Example two
The difference between this embodiment and the first embodiment is: in the case of welding aluminum and aluminum alloys, magnesium and magnesium alloys, the welder 18 is in an ac mode, while other metals are typically in a dc mode. The ultrasonic generator 12 can realize a continuous power output mode and a pulse power output mode, an electric signal provided by the ultrasonic generator 12 is converted by the ultrasonic transducer 7-1 to form ultrasonic vibration, and the ultrasonic amplitude transformer 7-2 amplifies the vibration signal and sends the amplified vibration signal out by the ultrasonic tool head 7-3.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above-mentioned embodiments only represent the embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the concept of the present invention, and these embodiments are all within the protection scope of the present invention.
Claims (10)
1. An ultrasonic-assisted arc spot welding device is characterized in that: the welding machine comprises a main mounting frame (1), a clamp (2), a reversing valve (3), a sliding table cylinder (4), a sliding table cylinder mounting frame (5), an ultrasonic output device mounting frame (6), an ultrasonic output device (7), a to-be-welded thin plate (8), a working platform (9), an electric ball screw linear guide rail sliding table (10), a single-shaft motion controller (11), an ultrasonic generator (12), an auxiliary mounting frame (13), a manual ball screw linear guide rail sliding table (14), a welding gun (15), an electric ball screw linear guide rail sliding table mounting base plate (16), a bottom plate (17), a welding machine (18), an air compressor (19) and an air bottle (20); the main mounting frame (1) is fixed on the bottom plate (17), the sliding table cylinder mounting frame (5) is connected on the main mounting frame (1), the sliding table cylinder (4) is fixed on the sliding table cylinder mounting frame (5), the sliding table cylinder (4) is connected with the ultrasonic output device mounting frame (6), the ultrasonic output device (7) is fixed on the ultrasonic output device mounting frame (6), the adjustment of the position of the ultrasonic output device (7) in the vertical direction is realized through the sliding table cylinder (4), the clamp (2) is fixedly connected with the working platform (9), the clamping of the to-be-welded thin plate (8) on the working platform (9) is realized through the clamp (2), the working platform (9) is fixedly connected with the electric ball screw linear guide rail sliding table (10), and the adjustment of the position of the working platform (9) in the one-dimensional direction is realized through the electric ball screw linear guide rail sliding table (10), the electric ball screw linear guide rail sliding table (10) is fixedly connected with an electric ball screw linear guide rail sliding table placing base plate (16), an auxiliary mounting frame (13) is fixedly connected with a bottom plate (17), a manual ball screw linear guide rail sliding table (14) is fixedly connected with the auxiliary mounting frame (13), a welding gun (15) is connected with the manual ball screw linear guide rail sliding table (14), the position of the welding gun (15) in the vertical direction is adjusted through the manual ball screw linear guide rail sliding table (14), the welding gun (15) is connected with a welding machine (18) through a lead, an ultrasonic output device (7) is connected with an ultrasonic generator (12) through a lead, a sliding table cylinder (4) is connected with a reversing valve (3) through a gas pipe, the reversing work of the sliding table cylinder (4) is realized through the reversing valve (3), and the reversing valve (3) is connected with a gas bottle (20) through a gas pipe, the gas bottle (20) is connected with an air compressor (19) through a gas pipe.
2. An ultrasonic-assisted arc spot welding device according to claim 1, characterized in that: the ultrasonic output device (7) comprises an ultrasonic transducer (7-1), an ultrasonic amplitude transformer (7-2), an ultrasonic tool head (7-3) and a flange (7-4), the ultrasonic transducer (7-1) is connected with the ultrasonic amplitude transformer (7-2) through the flange (7-4), the ultrasonic amplitude transformer (7-2) is connected with the ultrasonic tool head (7-3), the flange (7-4) is connected with an ultrasonic output device mounting frame (6), and the ultrasonic transducer (7-1) is connected with an ultrasonic generator (12) through a wire.
3. An ultrasonic-assisted arc spot welding device according to claim 2, characterized in that: the ultrasonic transducer (7-1) is provided with a heat dissipation device.
4. An ultrasonic-assisted arc spot welding device according to claim 1, characterized in that: the welding gun (15) comprises a tungsten needle clamp (15-1), a tungsten electrode (15-2), a flow guide piece (15-3) and a ceramic nozzle (15-4), wherein the tungsten electrode (15-2) is connected with the ceramic nozzle (15-4) through the tungsten needle clamp (15-1) and the flow guide piece (15-3).
5. An ultrasonic-assisted arc spot welding device according to claim 1, characterized in that: the ultrasonic output device (7) and the welding gun (15) are coaxially and oppositely arranged.
6. An ultrasonic-assisted arc spot welding device according to claim 1, characterized in that: the work platform (9) is provided with gas permeable squares allowing a welding gun (15) to apply a spot welding arc through the gas permeable squares.
7. An ultrasonic-assisted arc spot welding device according to claim 1, characterized in that: a through hole is formed in the electric ball screw linear guide rail sliding table placing base plate (16), and a welding gun (15) is allowed to perform spot welding work through the through hole.
8. An ultrasonic-assisted arc spot welding device according to claim 1, characterized in that: the displacement accuracy of the electric ball screw linear guide rail sliding table (10) and the displacement accuracy of the manual ball screw linear guide rail sliding table (14) are both +/-0.01 mm; the speed adjusting range of the electric ball screw linear guide rail sliding table (10) is 0-1000mm/s, and the adjusting precision is 0.01 mm/s.
9. An ultrasonic-assisted arc spot welding device according to claim 1, characterized in that: the sliding table cylinder (4) is provided with a limiting block, the effective stroke is 75mm, and the bearing capacity of the working platform (9) is not less than 100 kg.
10. An ultrasonic-assisted arc spot welding device according to claim 1, characterized in that: the welding machine (18) comprises a direct current mode and an alternating current mode, an electric signal output by the ultrasonic generator (12) is 20kHz-100kHz, the ultrasonic output power adjusting range is 1W-5000W, the ultrasonic generator (12) comprises a continuous power output mode and a pulse power output mode, the pulse power frequency range of the pulse power output mode is 0.01Hz-2000Hz, the peak value and base value adjusting range is 1W-5000W, and the duty ratio is 0-100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220422993.1U CN216882199U (en) | 2022-02-28 | 2022-02-28 | Ultrasonic-assisted arc spot welding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220422993.1U CN216882199U (en) | 2022-02-28 | 2022-02-28 | Ultrasonic-assisted arc spot welding device |
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| CN216882199U true CN216882199U (en) | 2022-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871608A (en) * | 2022-06-20 | 2022-08-09 | 东北林业大学 | Ultrasonic-assisted arc spot welding device and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871608A (en) * | 2022-06-20 | 2022-08-09 | 东北林业大学 | Ultrasonic-assisted arc spot welding device and using method |
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