CN215966805U - Wire feeding device for electric arc additive manufacturing and welding equipment - Google Patents
Wire feeding device for electric arc additive manufacturing and welding equipment Download PDFInfo
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- CN215966805U CN215966805U CN202122138616.3U CN202122138616U CN215966805U CN 215966805 U CN215966805 U CN 215966805U CN 202122138616 U CN202122138616 U CN 202122138616U CN 215966805 U CN215966805 U CN 215966805U
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Abstract
The utility model relates to the technical field of additive manufacturing, in particular to a wire feeding device and welding wire equipment for electric arc additive manufacturing, wherein the wire feeding device comprises a driving part, a rotating part, a twisting part and a connecting part which are sequentially arranged along a wire feeding direction: the rotating component comprises a cylindrical rotating body arranged along a horizontal axis, three wire reels with welding wires are arranged on the surface of the cylindrical rotating body at equal intervals along the circumferential direction, and the driving component is used for driving the cylindrical rotating body to rotate along the horizontal axis; the twisting component comprises a limiting cylinder, a wire feeding wheel set and an electromagnetic tightening ring. The utility model can perform stranding and conveying of the 1-to-3 type welding wires in real time for additive manufacturing, does not need to entrust a welding wire manufacturer to produce in some processing environments, has higher flexibility, can change the types of new stranded welding wires in real time according to test results particularly in the research and development test stage of novel welding wires, performs tests quickly, and does not easily disclose the combination mode of the welding wires.
Description
Technical Field
The utility model relates to the technical field of additive manufacturing, in particular to a wire feeder and welding equipment for electric arc additive manufacturing.
Background
The electric arc additive manufacturing technology using the electric arc as the heat source has the advantages of simple forming equipment, low equipment cost, higher material utilization rate and deposition efficiency in the forming process, and suitability for rapid forming processing of large-size components. And the electric arc additive forming path is used for depositing molten metal on the base plate according to a preset forming path, and accumulating layer by layer according to a principle and a process similar to surfacing, so that the metal part with a preset shape and a preset structure is finally obtained.
The welding technology is rapidly developed, wherein welding efficiency and cladding speed can be improved by adopting a plurality of stranded welding wires, and the stranded welding wires are formed by spirally stranding a plurality of monofilaments. Due to the change of the physical structure of the stranded welding wire, the stranded welding wire has special arc physical behavior, molten pool flowing behavior and process characteristics in welding, and the stranded welding wire has more structural types.
At present, equipment commonly used for stranding welding wires is a tubular twisting machine, single welding wires with different numbers and different diameters can be twisted through the equipment, and the single welding wires can be manufactured only by enterprises which specially produce the stranded welding wires. The equipment used by the existing method is large in volume; the manufacturing process is long; the existing stranded welding wire on the market is fixed in component, and if special welding wire component matching requirements exist and customization is needed by a manufacturer, the use cost and the time cost can be greatly improved.
Prior art documents:
patent document 1: CN110625225A TIG pinch roller rotation type paraxial wire feeding electric arc 3D printing device
Patent document 2: wire stranding device of CN107717263A welding wire stranding machine and welding wire stranding machine
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel multifunctional electric heating cooker which is simple in structure and convenient and fast to use; the twisted welding wires can be sent out while being twisted, so that the twisting and the wire feeding are synchronously realized; different single welding wire types can be matched according to requirements, and the components of the stranded welding wire can be changed according to the requirements.
The utility model provides a wire feeding device for electric arc additive manufacturing, which comprises a driving part, a rotating part, a twisting part and a connecting part, wherein the driving part, the rotating part, the twisting part and the connecting part are sequentially arranged along a wire feeding direction:
the rotary component comprises a cylindrical rotary body arranged along a horizontal axis, a plurality of welding wire discs with welding wires are arranged on the surface of the cylindrical rotary body at equal intervals along the circumferential direction, and the driving component is used for driving the cylindrical rotary body to rotate along the horizontal axis;
the stranding component comprises a limiting cylinder, a wire feeding wheel set and an electromagnetic tightening ring, the limiting cylinder is provided with a stranding channel for welding wires to be stranded with each other and penetrate through and be limited to a preset diameter profile, the axis of the stranding channel is overlapped with the axis of the cylindrical rotating body, the wire feeding wheel set is used for conveying the welding wires from the limiting cylinder to the electromagnetic tightening ring, and the electromagnetic tightening ring is arranged to tighten or loosen the welding wires;
the connecting part comprises a welding gun connecting port and a wire feeding pipe connecting port, the welding gun connecting port and the wire feeding pipe connecting port are provided with welding wire outlets for three welding wires after stranding to pass through, the axis of the welding wire outlet coincides with the axis of the stranding channel, the welding gun connecting port is used for connecting a welding gun, and the wire feeding pipe connecting port is used for connecting a wire feeding pipe.
Preferably, the limiting cylinder comprises a first limiting cylinder and a second limiting cylinder which can be mutually closed, a first groove is formed in a closed surface of the first limiting cylinder, a second groove is formed in a closed surface of the second limiting cylinder, and when the first limiting cylinder and the second limiting cylinder are closed, a twisted channel is formed by the first groove and the second groove.
Preferably, the twisted channel is provided with a conical surface at the side where the welding wire enters.
Preferably, a speed displacement sensor is arranged between the electromagnetic tightening ring and the welding wire outlet.
Preferably, the wire reel is arranged at the first end of the cylindrical rotating body, the second end of the cylindrical rotating body is provided with a guide wheel set, and the welding wire bypasses the guide wheel set and enters the stranding channel.
Preferably, send a wheelset to include two pairs of wire feeding wheels, send a wheelset to have a wire feeding position and a position of relaxing, when sending a wire position, send every pair of wire feeding wheel in the wire feeding wheelset to can laminate the welding wire and send a wire, when relaxing the position, send every pair of wire feeding wheel in the wire feeding wheelset to and strand the welding wire separation.
Preferably, the device further comprises a controller and connecting accessories, wherein the connecting accessories comprise a cooling water pipe and a protective air pipe.
The utility model provides another technical scheme, and welding equipment comprising the wire feeder for the arc additive manufacturing in the scheme comprises:
the welding gun is provided with a wire guide wheel and is used for sending the twisted welding wire to a contact nozzle of the welding gun;
the welding gun is connected to the welding gun connecting port, the twisted welding wire enters the welding gun from the welding gun connecting port and is connected to a high-voltage power supply through a contact nozzle, and the welding wire is melted by electric arcs generated between the welding wire and the part to be subjected to material increase.
The utility model provides another technical scheme, and welding equipment comprising the wire feeder for the arc additive manufacturing in the scheme comprises:
a wire feeding pipe connected to the wire feeding pipe connection port;
the welding gun is provided with a conductive nozzle, the conductive nozzle is provided with a tungsten electrode, and an arc area is generated between the tungsten electrode and the part to be subjected to material increase;
wherein the wire feeding pipe is used for feeding the stranded welding wire into the arc area.
With the wire feeder for arc additive manufacturing according to the above embodiment, the welding principle and process of the welding device provided by the present invention include:
loading a welding wire: loading a required welding wire model on a plurality of welding wire discs of the cylindrical rotating body;
pre-stranding welding wires: the three welding wires sequentially pass through the guide wheel set, the twisting channel, the wire feeding wheel set and the electromagnetic tightening ring, the wire feeding wheel set is controlled to be in a loosening state, the electromagnetic tightening ring drives the cylindrical rotating body to rotate after clamping the three welding wires, and the three welding wires are twisted until a twisting point reaches the welding wire twisting channel;
leading out a welding wire: controlling the electromagnetic tightening ring to be in a loosening state, controlling the wire feeding wheel set to be in a wire feeding state, setting the rotating speed of the cylindrical rotating body and the wire feeding speed of the welding wire, clamping the welding wire by the wire feeding wheel set to feed the welding wire in the direction of the outlet of the welding wire, and cutting off the part of the welding wire which is not twisted and is twisted to form a difference;
connecting a wire feeding channel for welding: a wire feeding hose is connected to a wire feeding pipe connecting port, a welding gun and accessories are connected to a controller, and the twisted welding wire is transmitted to a welding gun contact nozzle at a preset transmission speed to generate an arc area between the welding gun contact nozzle and a part to be subjected to material increase for welding;
or connecting a welding gun on a welding gun connecting port, connecting the welding gun and the accessories to the controller, and transmitting the twisted welding wire to the welding gun contact tip at a preset transmission speed so that the welding wire is melted by electric arcs generated between the welding wire and the part to be subjected to material increase for welding.
Compared with the prior art, the utility model has the advantages that:
the utility model can perform stranding and conveying of the 1 × N welding wires in real time for additive manufacturing, does not need to entrust a welding wire manufacturer to produce in some processing environments, has higher flexibility, can change the types of new stranded welding wires in real time according to test results particularly in the research and development test stage of novel welding wires, performs tests quickly, and does not easily disclose the combination mode of the welding wires.
The utility model can also realize numerical control, accurately set the rotating speed and the wire feeding speed and process the data collected by the speed displacement sensor. If the problems of wire blockage, arc blowout, twisting faults and the like occur in the electric arc additive test process, fault alarm can be realized through comparison of the speed displacement sensor and the preset wire feeding speed, so that the electric arc additive test is stopped suddenly, the device and welding machine equipment are protected, waste of welding wire materials is reduced, and error in electric arc additive forming size is reduced.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a wire feeding portion according to the present invention;
FIG. 2 is a schematic structural view of a cylindrical rotating body and three wire reels according to the present invention;
3-4 are schematic structural views of the limiting cylinder disclosed by the utility model;
FIG. 5 is a schematic view of a wire feed wheel assembly according to the present invention;
FIG. 6 is a schematic structural view of a wire feed wheel according to the present invention;
FIG. 7 is a schematic view of the welding gun connection port and the wire feed pipe connection port according to the present invention;
fig. 8a-8b are schematic views of the construction of the stranded wire of the present invention.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the utility model. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways with wire feeders, welding apparatuses, and welding methods for arc additive manufacturing, as the disclosed concepts and embodiments are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
Because the twisted welding wire can improve the welding efficiency and the cladding speed, and the twisted welding wire has great influence on the welding quality after the structural type and the composition of the twisted welding wire are changed, especially in the welding wire test stage, the utility model discloses people hope to quickly complete the test to develop a new twisted welding wire from the feedback content of the test result, therefore the utility model aims to provide a twisted welding wire which has simple structure and convenient use, can outwards send out the welding wire and weld when twisted, and meets the requirement of the test period. Different single welding wire types can be matched according to requirements, and the components of the stranded welding wire can be changed according to the requirements.
Wire feeder for electric arc additive manufacturing
The utility model aims to provide a wire feeding device for arc additive manufacturing, which is shown in fig. 1 and comprises a driving component, a rotating component, a twisting component and a connecting component which are arranged in sequence along a wire feeding direction. The driving component is used for driving the rotating component to rotate at a preset rotating speed so as to complete the stranding of the welding wire on the stranded component, and the welding wire is sent to the connecting component and sent to the welding gun for an arc welding test.
Rotating part
As shown in fig. 1 and 2, the rotating component includes a cylindrical rotating body 202 arranged along a horizontal axis, the cylindrical rotating body 202 has a cylindrical outer peripheral surface, a plurality of wire reels 204 with welding wires are provided on the surface of the cylindrical rotating body 202 at equal intervals along the circumferential direction, and a driving component is used for driving the cylindrical rotating body 202 to rotate along the horizontal axis. Three wire reels 204 are illustrated in the illustrated embodiment.
In an alternative embodiment, a rotating shaft is provided at the axis of the cylindrical rotating body 202, and is fixed to a supporting surface, in particular to the bottom plate 502 of the housing 501, through the supporting frame 201, and a gear is fixed on the rotating shaft.
The driving part comprises a driving motor 101 and a gear 102 at the output end of the driving motor, and the gear 102 is in meshing connection with the rotating shaft.
Further, the wire reel 204 is fixed to the surface of the cylindrical rotating body 202 by the wire reel holder 203 so that the wire reel 204 can rotate relative to the cylindrical rotating body 202 with its axis parallel to the tangent plane of the cylindrical rotating body 202 and perpendicular to the axis thereof. A single wire is deposited on wire reel 204.
Therefore, when the welding wires on the three welding wire discs 204 are synchronously pulled outwards and are combined into a constraint channel, the driving part drives the cylindrical rotating body 202 to rotate along the horizontal axis, so that the three welding wires can be twisted to form a twisted welding wire.
Further, the welding wire is straightened in a coiled state by the guide roller set 205 disposed at the cylindrical rotating body 202 near the twisting member. The guide wheel set 205 includes three guide wheels distributed in a delta shape, the guide wheels have functions of straightening and guiding the welding wire, and the welding wire enters the stranded part from the guide wheel set 205. The wire feeding stability is ensured while the wire feeding is ensured to rotate along with the cylindrical rotating body 202, and meanwhile, the pre-deformation of a single welding wire is realized, which is beneficial to improving the stability of the welding wire twisted into a shape.
Twisted member
As shown in fig. 1 and 3-4, the twisting member includes a limiting cylinder 302, a wire feeder wheel set 303, and an electromagnetic tightening ring 305.
Wherein, limiting cylinder 302 is provided with a twisting channel 34 for welding wires to be twisted and passed through and limited to a predetermined diameter profile, the axis of twisting channel 34 is coincident with the axis of cylindrical rotating body 202, and limiting cylinder 302 is supported on bottom plate 502 by support column 301.
In an alternative embodiment, the limiting cylinder includes a first limiting cylinder 31 and a second limiting cylinder 32 that can be folded with each other, a first groove is provided on a folded surface of the first limiting cylinder 31, a second groove is provided on a folded surface of the second limiting cylinder 32, and when the first limiting cylinder 31 and the second limiting cylinder 32 are folded, the first groove and the second groove form a twisted channel 34. The diameter of the twisting channel 34 is the same as that of the twisted welding wire, and the error is controlled within 5%.
Specifically, screw holes are formed in the first limiting cylinder 31 and the second limiting cylinder 32, the first limiting cylinder 31 and the second limiting cylinder 32 can be screwed by bolts 35 penetrating through the screw holes, and the first limiting cylinder 31 and the second limiting cylinder 32 are fixed in an involutive mode.
In a preferred example, the first limiting cylinder 31 and the second limiting cylinder 32 are provided with electromagnetic adsorption components, and when the electromagnetic adsorption components are electrified, strong magnetism is generated, so that the first limiting cylinder 31 and the second limiting cylinder 32 are attracted to each other, pressure is applied to the stranded welding wire, and the final shape and the diameter of the stranded welding wire are controlled, thereby ensuring the motion stability of the stranded welding wire.
Preferably, the twisting channel 34 is provided with a conical surface 33 at the side where the welding wire enters, and the inclination angle of the conical surface 33 is the same as the inclination angle of the welding wire from the guide wheel set 205 to the twisting channel 34.
Therefore, the welding wire can be prevented from rubbing against the sharp part of the end surface of the twisting channel 34, and the welding wire is prevented from being damaged.
Further, the wire feeding wheel set 303 is used for feeding the welding wire from the limiting cylinder 302 to the electromagnetic tightening ring 305, and the electromagnetic tightening ring 305 is configured to tighten or loosen three welding wires.
In an alternative embodiment, shown in connection with FIG. 5, the wire feed wheel set 303 includes two pairs of wire feed wheels, the wire feed wheel set 303 having a wire feed position and a relaxed position; when in the wire feeding position, each pair of wire feeding wheels in the wire feeding wheel set 303 is set to fit with the welding wire for wire feeding; in the relaxed position, each pair of feed wheels in the set of feed wheels 303 is disposed separate from the twisted wire.
Specifically, the wire feeding wheel 36 is connected to the servo motor, and the relative position state between the two wire feeding wheels 36 is controlled by the electromagnetic device, when the electromagnetic device is powered on, the two wire feeding wheels 36 attract each other, so that two of the pair of wire feeding wheels 36 are in a state of being close to each other until reaching the wire feeding position, the wire feeding wheels 36 are attached to the welding wire, when the electromagnetic device is powered off, the wire feeding wheels 36 are bounced off by the spring, so that the two wire feeding wheels 36 are far away from each other, and the wire feeding wheels 36 are separated from the twisted welding wire.
Referring to fig. 6, the groove size of the wire feeding wheel 36 is designed according to the size of the twisted welding wire, and the diameter S of the twisted welding wire formed by twisting different single welding wire diameters S is different, so that the calculation result shows that
The diameters S of the single welding wires are 0.8mm, 1.0mm and 1.2mm, the diameters S of the stranded welding wires are about 1.8mm, 2.2mm and 2.6mm, and the diameters of the grooves of the large wire feeding wheel are 2.0mm, 2.4mm and 2.8 mm. The groove of the wire feeding wheel 36 is provided with an inclined pattern 361, so that friction force can be increased, and transmission of stranded welding wires is facilitated.
In the preferred example, a guidewire tube 304 is provided between the wire feed wheel set 303 and the electromagnetic cinch ring 305.
In an alternative embodiment, the electromagnetic tightening ring 305 includes an upper tightening ring and a lower tightening ring, and when the upper and lower tightening rings are energized, the electromagnet attracts the upper and lower tightening rings to hold the upper and lower tightening rings tightly against each other, thereby clamping the welding wire passing through the electromagnetic tightening ring 305 and restraining the welding wire from moving freely.
Wherein the inner diameter of the electromagnetic tensioner ring 305 is the same as the diameter of the twisted channel 34.
Further, a speed and displacement sensor 306 is arranged between the electromagnetic tightening ring 305 and the welding wire outlet, and can detect the real-time wire feeding speed and displacement of the twisted welding wire, feed back the real-time wire feeding speed and displacement to the controller 503 for data processing, and finally display data feedback and other signals in the twisting process.
Thus, through the speed data collected by the speed displacement sensor 306, it can be known that when the actual wire feeding speed u is much lower than the set wire feeding speed v, the twisted wire at the speed displacement sensor 306 does not move or moves very slowly, which means that the twisted wire is sintered at the contact tip, or is blocked during the wire feeding process, or the wire twisting process fails. In response, the controller 503 causes the drive unit and the wire feeding wheel set 303 to stop working in an emergency, and simultaneously feeds back the fault signal to the welding power supply equipment and the robot, so that the welding operation is stopped.
In addition, the displacement of the stranded welding wire is collected by the speed displacement sensor 306, the length of the stranded welding wire sent out in the working time of the device can be calculated by the controller 503 and the display, the calculated length can be converted into the mass of the stranded welding wire sent out, and a certain basis is made for calculating the metal deposition amount in the arc material adding process.
Connecting part
As shown in fig. 7, the connection member includes a welding gun connection port 401 and a wire feeding pipe connection port 402, the welding gun connection port 401 and the wire feeding pipe connection port 402 are provided with wire outlets through which three twisted wires pass, the axes of the wire outlets coincide with the axis of the twisting passage 34, the welding gun connection port 401 is used for connecting a welding gun, and the wire feeding pipe connection port 402 is used for connecting a wire feeding pipe.
The wire feeding pipe connection port 402 may be sleeved outside the welding gun connection port 401, and may be connected to a wire feeding hose 404, and the wire feeding hose 404 guides the welding wire to the arc of the welding gun.
Further, as shown in fig. 1, the welding torch further includes a controller 503 and a connection accessory 504, where the connection accessory 504 includes a cooling water pipe, a shielding gas pipe, and the like, and is used for providing cooling water and shielding gas for the welding torch.
Selecting a connection mode according to an arc additive method:
1. and performing arc material increase of gas metal arc welding, adopting a welding gun to feed wires, connecting the welding gun at the welding gun connection interface 401, and connecting the welding gun connection accessory 504.
2. And performing wire filling welding arc material increase, adopting a wire feeding pipe to feed wires, connecting a wire feeding pipe connecting port 402 at a welding gun connecting port 401, and feeding stranded welding wires through a wire feeding wire guide pipe 403 and a wire feeding hose 404.
[ welding apparatus ]
The utility model provides another technical scheme, and welding equipment comprising the wire feeder for the arc additive manufacturing in the scheme comprises:
the welding gun is provided with a wire guide wheel and is used for sending the twisted welding wire to a contact nozzle of the welding gun;
the welding gun is connected to the welding gun connecting port 401, the twisted welding wire enters the welding gun from the welding gun connecting port 401 and is connected to a high-voltage power supply through a contact tip, and the welding wire is melted by electric arcs generated between the welding wire and the part to be subjected to material increase.
In an alternative embodiment, three coils of ER5356 aluminum alloy wire are selected, with a diameter of 1.2mm, a 1.2mm guide wheel set 205, a 2.8mm wire feed wheel set 303, a 2.6mm stranding channel 34, and a 2.6mm electromagnetic tension ring 305. The method is adopted to output the 1 × 3-specification stranded welding wire with the diameter of 2.6mm, and a welding gun is connected at the welding gun connecting interface 401 to complete the connection among the welding machine, the welding wire stranding device, the welding gun and other equipment. The pipe diameter specification of a wire feeding pipe in the welding gun is 2.6mm, and the conductive nozzle is 2.6 mm.
After the device is used, the stranded welding wire is sent to the contact tip, the welding machine controller is started, the welding wire stranding device is started, and the electric arc material increase and welding wire stranding processes are carried out synchronously.
The process adopts a 1-by-3 aluminum alloy stranded welding wire to carry out consumable electrode gas shielded arc welding material increase.
The utility model provides another technical scheme, and welding equipment comprising the wire feeder for the arc additive manufacturing in the scheme comprises:
a wire feeding pipe connected to the wire feeding pipe connection port;
the welding gun is provided with a conductive nozzle, the conductive nozzle is provided with a tungsten electrode, and an arc area is generated between the tungsten electrode and the part to be subjected to material increase;
wherein the wire feeding pipe is used for feeding the stranded welding wire into the arc area.
In an alternative embodiment, one coil of each of ER5356, ER5A06, and ER5B06 aluminum alloy welding wire is selected, the diameter of each coil is 1.2mm, and a 1.2mm guide wheel set 205, a 2.8mm wire feed wheel set 303, a 2.6mm stranding channel 34, and a 2.6mm electromagnetic tightening ring 305 are selected. The method is adopted to output the 1 × 3-specification stranded welding wire with the diameter of 2.6mm, a wire feeding pipe connecting port 402 is connected to a welding gun connecting port 401, an outer wire feeding pipe 404 is placed as required, a wire outlet of the outer wire feeding pipe 404 is fixed to the side of a welding gun, the stranded welding wire can smoothly reach the center of an electric arc, and a signal wire needs to be connected between a welding machine and a welding wire stranding device. The pipe diameter specification of a wire feeding pipe in the welding gun is 2.6mm, and the conductive nozzle is 2.6 mm.
After the device is used, the twisted welding wire is sent to the electric arc center position at the bottom of the welding gun, the welding machine controller is started, the welding wire twisting device is controlled to be started through a signal line, the plasma arc welding material adding and the welding wire twisting process are carried out synchronously, and the twisted welding wire is sent to the center of the plasma arc to be heated and melted.
The process adopts a 1-by-3 aluminum alloy stranded welding wire to perform plasma arc welding material increase.
[ welding method ]
With the above embodiments, the welding principle of the welding device proposed by the present invention includes:
step S1, loading of welding wire: loading a required welding wire model on three welding wire discs 204 of the cylindrical rotating body 202;
step S2, pre-twisting the welding wire: three welding wires sequentially pass through the guide wheel set 205, the twisting channel 34, the wire feeding wheel set 303 and the electromagnetic tightening ring 305, the wire feeding wheel set 303 is controlled to be in a loosening state, the electromagnetic tightening ring 305 clamps the three welding wires and then drives the cylindrical rotating body 202 to rotate, and the three welding wires are twisted until a twisting point reaches the welding wire twisting channel 34;
step S3, drawing out the wire: controlling the electromagnetic tightening ring 305 to be in a loosening state, controlling the wire feeding wheel set 303 to be in a wire feeding state, setting the rotating speed of the cylindrical rotating body 202 and the wire feeding speed of the welding wire, clamping the welding wire by the wire feeding wheel set 303 to feed the welding wire towards the outlet direction of the welding wire, and cutting off the part of the welding wire which is not twisted and is twisted to form a difference, so that three strands of welding wire are twisted to form a twisted welding wire shown in figures 8a-8b (wherein R is the diameter of the single welding wire, and R is the diameter of the twisted welding wire formed after twisting);
step S4, connecting a wire feeding channel for welding: a wire feeding hose 404 is connected to the wire feeding pipe connecting port 402, the welding gun and the accessories are connected to the controller 503, and the twisted welding wire is transmitted to a welding gun contact nozzle at a preset transmission speed to generate an arc region between the welding gun contact nozzle and the part to be subjected to material increase for welding;
or connecting a welding gun to the welding gun connecting port 401, connecting the welding gun and accessories to the controller 503, and transmitting the twisted welding wire to the welding gun contact tip at a preset transmission speed so that the welding wire is melted by electric arc generated between the welding wire and the part to be subjected to material increase for welding.
By combining the embodiment, the scheme of the utility model can perform twisting and conveying of the 1 × 3 welding wire in real time for additive manufacturing, does not need to entrust a welding wire manufacturer to produce in some processing environments, has higher flexibility, can change the type of a new twisted welding wire in real time according to a test result particularly in the research and development test stage of a novel welding wire, performs a test quickly, and does not easily disclose the combination mode of the welding wire.
The utility model can also realize numerical control, accurately set the rotating speed and the wire feeding speed and process the data collected by the speed displacement sensor. If the problems of wire blockage, arc blowout, twisting faults and the like occur in the electric arc additive test process, fault alarm can be realized through comparison of the speed displacement sensor and the preset wire feeding speed, so that the electric arc additive test is stopped suddenly, the device and welding machine equipment are protected, waste of welding wire materials is reduced, and error in electric arc additive forming size is reduced.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (9)
1. The utility model provides an electric arc is wire drive feed unit for vibration material disk, its characterized in that includes drive part, rotary part, transposition part and the adapting unit that sets gradually along sending the silk direction:
the rotary component comprises a cylindrical rotary body arranged along a horizontal axis, a plurality of welding wire discs with welding wires are arranged on the surface of the cylindrical rotary body at equal intervals along the circumferential direction, and the driving component is used for driving the cylindrical rotary body to rotate along the horizontal axis;
the stranding component comprises a limiting cylinder, a wire feeding wheel set and an electromagnetic tightening ring, the limiting cylinder is provided with a stranding channel for welding wires to be stranded with each other and penetrate through and be limited to a preset diameter profile, the axis of the stranding channel is overlapped with the axis of the cylindrical rotating body, the wire feeding wheel set is used for conveying the welding wires from the limiting cylinder to the electromagnetic tightening ring, and the electromagnetic tightening ring is arranged to tighten or loosen the welding wires;
the connecting component comprises a welding gun connecting port and a wire feeding pipe connecting port, and the welding gun connecting port and the wire feeding pipe connecting port are respectively provided with a welding wire outlet for the three twisted welding wires to pass through;
wherein the axis of the welding wire outlet is superposed with the axis of the stranding channel;
the welding gun connecting port is used for connecting a welding gun;
the wire feeding pipe connecting port is used for connecting a wire feeding pipe.
2. The wire feeding device for electric arc additive manufacturing according to claim 1, wherein the limiting cylinder comprises a first limiting cylinder and a second limiting cylinder which can be mutually folded, a first groove is formed on a folded surface of the first limiting cylinder, a second groove is formed on a folded surface of the second limiting cylinder, and when the first limiting cylinder and the second limiting cylinder are folded, the first groove and the second groove form a folding channel.
3. The wire feeder for arc additive manufacturing according to claim 2, wherein the twisting channel is provided with a conical surface on a side where the welding wire enters.
4. The wire feeder of claim 1, wherein a speed displacement sensor is disposed between the electromagnetic tensioner ring and the wire exit.
5. The wire feeder for arc additive manufacturing according to claim 1, wherein the wire reel is disposed at a first end of the cylindrical rotating body, and a guide wheel set is disposed at a second end of the cylindrical rotating body, and the welding wire passes through the guide wheel set and enters the twisting channel.
6. The wire feeder of claim 1, wherein the wire feed wheel set comprises two pairs of wire feed wheels, the wire feed wheel set having a wire feed position in which each pair of wire feed wheels is configured to engage the welding wire for feeding the welding wire and a release position in which each pair of wire feed wheels is configured to disengage the twisted welding wire.
7. The wire feeder for arc additive manufacturing according to any one of claims 1 to 6, further comprising a controller and connection accessories, wherein the connection accessories comprise a cooling water pipe and a protective gas pipe.
8. A welding apparatus including the wire feeder for arc additive manufacturing of claim 7, comprising:
the welding gun is provided with a wire guide wheel and is used for sending the twisted welding wire to a contact nozzle of the welding gun;
the welding gun is connected to the welding gun connecting port, the twisted welding wire enters the welding gun from the welding gun connecting port and is connected to a high-voltage power supply through a contact nozzle, and the welding wire is melted by electric arcs generated between the welding wire and the part to be subjected to material increase.
9. A welding apparatus including the wire feeder for arc additive manufacturing of claim 7, comprising:
a wire feeding pipe connected to the wire feeding pipe connection port;
the welding gun is provided with a conductive nozzle, the conductive nozzle is provided with a tungsten electrode, and an arc area is generated between the tungsten electrode and the part to be subjected to material increase;
wherein the wire feeding pipe is used for feeding the stranded welding wire into the arc area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122138616.3U CN215966805U (en) | 2021-09-06 | 2021-09-06 | Wire feeding device for electric arc additive manufacturing and welding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122138616.3U CN215966805U (en) | 2021-09-06 | 2021-09-06 | Wire feeding device for electric arc additive manufacturing and welding equipment |
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| CN215966805U true CN215966805U (en) | 2022-03-08 |
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| CN202122138616.3U Active CN215966805U (en) | 2021-09-06 | 2021-09-06 | Wire feeding device for electric arc additive manufacturing and welding equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106641A (en) * | 2022-06-08 | 2022-09-27 | 南昌航空大学 | Electromagnetic pulse composite stirring friction material increase machining device and machining method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106641A (en) * | 2022-06-08 | 2022-09-27 | 南昌航空大学 | Electromagnetic pulse composite stirring friction material increase machining device and machining method |
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