CN116713549A - Laser welding device and laser welding method - Google Patents
Laser welding device and laser welding method Download PDFInfo
- Publication number
- CN116713549A CN116713549A CN202310989198.XA CN202310989198A CN116713549A CN 116713549 A CN116713549 A CN 116713549A CN 202310989198 A CN202310989198 A CN 202310989198A CN 116713549 A CN116713549 A CN 116713549A
- Authority
- CN
- China
- Prior art keywords
- wire
- tin
- welding
- wire feeding
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 24
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 155
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000012546 transfer Methods 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims 2
- 238000004891 communication Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/005—Soldering by means of radiant energy
- B23K1/0056—Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/063—Solder feeding devices for wire feeding
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser welding device and a laser welding method, wherein the laser welding device comprises a base, a laser, a wire feeding component and an air feeding component, wherein the base is provided with an optical axis, a welding head is arranged on the base, the laser is arranged on the optical axis, the wire feeding component is used for transferring tin wires into the welding head, the air feeding component is communicated with the welding head and is used for supplying air to the welding head, when the wire feeding component transfers the tin wires to the corresponding position of the welding head, the laser emits laser to irradiate the tin wires so as to melt the tin wires into tin liquid, and meanwhile, the air feeding component is ventilated to the welding head so as to enable the tin liquid to flow onto a welded piece for welding, and the wire feeding component is arranged so as to move the tin wires with preset length to the welding head, so that when the amount of the welded tin wires is changed, the preset length of the tin wires can be adjusted synchronously, the wire feeding amount of the wire feeding component is matched with the welding requirement, and the problem that the existing tin ball is high in laser welding cost and operation is complicated is solved.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to a laser welding device and a laser welding method.
Background
At present, in tin ball laser welding, because the tin ball is generally smaller, the manufacturing cost is higher, and meanwhile, tin balls with different specifications are required for different welding parts, so that the tin balls are required to be replaced frequently, and the operation is complicated.
Disclosure of Invention
The invention mainly aims to provide a laser welding device and a laser welding method, and aims to solve the problems of high cost and complex operation of the conventional tin ball laser welding.
To achieve the above object, the present invention provides a laser welding apparatus comprising:
the machine seat is provided with an optical axis and is provided with a welding head;
the laser is arranged on the base and is positioned on the optical axis;
the wire feeding assembly is used for conveying tin wires into the welding head;
the air supply assembly is communicated with the welding head and used for supplying air to the welding head;
when the wire feeding assembly moves the tin wire to the corresponding position of the welding head, the laser emits laser to irradiate the tin wire so as to melt the tin wire into tin liquid, and meanwhile, the air feeding assembly ventilates the welding head so that the tin liquid flows to a welded piece to be welded.
Optionally, the welding head is provided with a through hole;
the wire feeding assembly includes:
a mounting base;
the charging tray is arranged on the mounting seat and used for mounting tin wire coil materials;
the wire feeding pipe penetrates through the through hole; the method comprises the steps of,
the wire feeding driving device is arranged on the mounting seat and used for driving the tin wire to move.
Optionally, the middle part of the wire feeding tube is arranged in the through hole; and/or the number of the groups of groups,
the wire feeding pipe obliquely penetrates through the through hole.
Optionally, the wire feeding tube comprises a tube body and a sealing sleeve sleeved at an outlet of the tube body.
Optionally, the wire feeding assembly further comprises an encoder arranged on the mounting seat and used for measuring the moving length of the tin wire.
Optionally, the laser welding device further comprises an infrared temperature measuring device arranged on the base, and the infrared temperature measuring device and the laser are coaxially arranged; and/or the number of the groups of groups,
the laser welding device further comprises a camera device arranged on the base, and the camera device and the laser are coaxially arranged.
In addition, the invention also provides a laser welding method based on the laser welding device, which comprises the following steps:
controlling the wire feeding assembly to transfer the end part of the tin wire to a preset position;
controlling a laser to emit laser, and irradiating the tin wire at the preset position to melt the tin wire until the tin wire transferred by the wire feeding assembly reaches the preset wire feeding length;
and controlling ventilation of the air supply assembly so as to enable molten tin to flow out of an outlet of the welding head.
Optionally, before the controlling the wire feeding assembly moves the end of the tin wire to the preset position, the method further includes:
acquiring a preformed weld image at a welding position;
determining a target welding tin amount according to the preformed welding seam image;
and determining the preset wire feeding length of the tin wire according to the target welding tin amount.
Optionally, the controlling laser emits laser light, irradiates the tin wire at the preset position to melt the tin wire, until the tin wire transferred by the wire transferring assembly reaches the preset wire transferring length, and further includes:
acquiring an actual formed weld image at a welding position;
when an unshaped welding seam area exists on the actual forming welding seam image, determining the compensation welding tin amount according to the unshaped welding seam area;
determining the compensation wire feeding length of the compensation tin wire according to the compensation welding tin amount;
and controlling the wire feeding assembly to continue wire feeding according to the length of the compensating wire feeding.
Optionally, the controlling the laser to emit laser light irradiates the tin wire at the preset position to melt the tin wire until the tin wire transferred by the wire transferring assembly reaches a preset wire transferring length, including:
acquiring the actual wire feeding length of the wire feeding assembly;
when the actual wire feeding length is smaller than K, the wire feeding assembly is controlled to convey the tin wire at a first preset speed;
when the actual wire feeding length is greater than or equal to K, the wire feeding assembly is controlled to convey the tin wire at a second preset speed, wherein the second preset speed is smaller than the first preset speed.
According to the technical scheme, during welding, the wire feeding assembly is controlled to convey the tin wire with the preset length into the welding head, then the laser emits laser to irradiate the tin wire so as to melt the tin wire, and meanwhile the air feeding assembly ventilates the welding head so that molten tin liquid flows onto a welded part through an outlet of the welding head to be welded, so that the air feeding assembly is arranged so that the tin liquid can flow out of the outlet of the welding head, separation of the tin liquid is accelerated, backflow of the tin liquid is avoided, and meanwhile, the wire feeding assembly is arranged so as to move the tin wire with the preset length into the welding head, so that when the amount of the welded tin wire is changed, the preset length of the tin wire can be synchronously adjusted so as to meet the requirement, the wire feeding amount of the wire feeding assembly is matched with the welding requirement, and the problem that the existing tin ball laser is high in welding cost and complex in operation is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a laser welding apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic elevational view of the laser welding apparatus of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic diagram of a controller of a hardware operating environment involved in the embodiment of FIG. 1;
fig. 5 is a schematic flow chart of a first embodiment of a laser welding method according to the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the case where a directional instruction is involved in the embodiment of the present invention, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
At present, in tin ball laser welding, as the tin ball is usually smaller, the manufacturing cost is higher, and meanwhile, tin balls with different specifications are required for different welding seams, so that the tin ball needs to be replaced frequently, and the operation is complicated.
In view of the above, the invention provides a laser welding device, which aims to solve the problems of high cost and complex operation of the existing solder ball laser welding. Fig. 1 to 5 are schematic diagrams of an embodiment of a laser welding apparatus and a laser welding method according to the present invention.
Referring to fig. 1 to 3, the laser welding apparatus 100 includes a base 1, a laser 2, a wire feeding assembly 3, and an air feeding assembly 4, wherein the base 1 forms an optical axis, a welding head 11 is disposed on the base 1, the laser 2 is disposed on the base 1 and is located on the optical axis, the wire feeding assembly 3 is used for transferring a tin wire 200 into the welding head 11, the air feeding assembly 4 is communicated with the welding head 11 and is used for supplying air to the welding head 11, and the laser 2 emits laser to irradiate the tin wire 200 when the wire feeding assembly 3 transfers the tin wire 200 to a corresponding position of the welding head 11, so as to melt the tin wire 200 into tin liquid, and the air feeding assembly 4 ventilates the welding head 11, so that the tin liquid flows onto a welded part to be welded.
In the technical scheme of the invention, during welding, the wire feeding assembly 3 is controlled to transfer the tin wire 200 with the preset length into the welding head 11, then the laser 2 emits laser to irradiate the tin wire 200 so as to melt the tin wire 200, and meanwhile, the air feeding assembly 4 is ventilated to the welding head 11 so that molten tin liquid flows onto a welded part through an outlet of the welding head 11 to weld, thus, the air feeding assembly 4 is arranged so that the tin liquid can flow out from the outlet of the welding head 11, separation of the tin liquid is accelerated, backflow of the tin liquid is avoided, and meanwhile, the wire feeding assembly 3 is arranged so as to move the tin wire 200 with the preset length to the welding head 11, so that when the amount of the welded tin wire 200 is changed, the preset length of the tin wire 200 can be synchronously adjusted to meet the requirement, and the wire feeding amount of the wire feeding assembly 3 is matched with the welding requirement without frequent replacement of tin balls, thereby solving the problems of high welding cost and complicated operation of the conventional tin ball laser.
It will be appreciated that, during the laser irradiation, the wire feeding assembly 3 may be in a wire feeding stop state or a wire feeding state, which is not limited by the present invention, and the laser spot emitted by the laser 2 may have various shapes, such as a circular shape or a square shape, and the size of the laser spot may be adjusted as required, which is not limited by the present invention.
It should be appreciated that, in order to control the laser 2, wire feed assembly 3, and wire feed assembly 32, the laser welding apparatus 100 further includes a controller, referring to fig. 4, which may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
In order to transfer the tin wire 200 into the soldering head 11, in this embodiment, referring to fig. 3, the soldering head 11 is provided with a through hole, the wire feeding assembly 3 includes a mounting seat tray 31, a wire feeding tube 32 and a wire feeding driving device 33, the tray 31 is disposed on the mounting seat for mounting the tin wire 200 coil, the wire feeding tube 32 is disposed through the through hole, the wire feeding driving device 33 is disposed on the mounting seat for driving the tin wire 200 to move, so that the wire feeding driving device 33 is disposed to transfer the tin wire 200, and the wire feeding tube 32 is disposed to support the tin wire 200 so as to guide the tin wire 200 to the corresponding position of the soldering head 11 for laser irradiation.
The wire feeding pipe 32 may be disposed in the welding head 11 in various manners, and the wire feeding pipe 32 may be disposed outside the welding head 11 or disposed inside the welding head 11, which is not limited in the present invention, specifically, in an embodiment, a middle portion of the wire feeding pipe 32 is disposed in the through hole, so that a portion of the wire feeding pipe 32 is disposed outside the welding head 11, and another portion is disposed in the welding head 11, so that it is convenient to guide the tin wire 200 to the through hole, and also can support the tin wire 200, so as to prevent the tin wire 200 from bending in the welding head 11, and influence the laser 2 to irradiate the tin wire 200.
In another embodiment, the wire feeding pipe 32 is obliquely arranged through the through hole, so that the wire feeding pipe 32 is matched with the shape of the welding head 11, and the tin wire 200 can approach to the outlet of the welding head 11, so that molten tin can flow out of the welding head 11.
It should be noted that the two related technical features are as follows: the middle part of the wire feeding pipe 32 is arranged in the through hole, and the wire feeding pipe 32 obliquely penetrates through the through hole, so that the wire feeding pipe 32 can be alternatively arranged or simultaneously arranged, and obviously, the arrangement effect is better.
In order to avoid the air flowing out of the welding head 11 through the wire feeding pipe 32, in this embodiment, the wire feeding pipe 32 includes a pipe body and a sealing sleeve sleeved at an outlet of the pipe body, so that the sealing sleeve seals a gap between the tin wire 200 and the pipe body, thereby preventing the air flowing out of the wire feeding pipe 32. Further, the sealing sleeve is made of flexible materials, so that a gap between the tube body and the tin wire 200 can be sealed, the movement of the tin wire 200 is not affected, and meanwhile, the tin wire 200 can be fixed to the tube body, so that the tin wire 200 is prevented from shaking in the wire feeding process.
Theoretically, when the length of the wire feeding assembly 3 for transferring the tin wire 200 is equal to the preset wire feeding length, the wire feeding assembly 3 may stop wire feeding, but if a sliding wire or other conditions occur in the wire feeding process, the actual wire feeding length may be smaller than the preset wire feeding length, resulting in insufficient amount of the tin wire 200, so in this embodiment, the wire feeding assembly 3 further includes an encoder provided on the mounting seat for measuring the moving length of the tin wire 200, so that by setting the encoder, the actual wire feeding length of the wire feeding assembly 3 is detected, so as to form a closed loop control, so as to avoid the problem of insufficient wire feeding, and ensure that the actual wire feeding length is equal to the preset wire feeding length.
In order to enable the air flow to flow out from the outlet of the welding head 11, in this embodiment, the outlet of the welding head 11 is tapered, so that the air flow in the welding head 11 converges toward the outlet of the welding head 11, and a stagnation area is avoided being formed in the welding head 11 due to the backflow of the air flow.
In order to facilitate the measurement of the temperature of the laser spot, in this embodiment, the laser welding apparatus 100 further includes an infrared temperature measuring device 5 disposed on the base 1, where the infrared temperature measuring device 5 is coaxially disposed with the laser 2, and thus, the temperature of the laser spot is detected by coaxially disposing the infrared temperature measuring device 5, so as to accurately control the temperature of the laser spot. It may be understood that the infrared temperature measuring device 5 is coaxially disposed with the laser 2, which means that the infrared beam of the infrared temperature measuring device 5 and the laser beam of the laser 2 are transmitted through the same optical path.
In order to facilitate observation of the welding condition, in this embodiment, the laser welding device 100 further includes an image pickup device 6 disposed on the stand 1, and the image pickup device 6 is coaxially disposed with the laser 2, so that a welder can observe the welding condition by disposing the image pickup device 6, thereby helping to improve the welding quality. It is to be understood that the image pickup device 6 is coaxially disposed with the laser 2, which means that the visible light beam of the image pickup device 6 and the laser beam of the laser 2 are transmitted through the same optical path.
It should be noted that the two related technical features are as follows: the laser welding device 100 further comprises an infrared temperature measuring device 5 arranged on the base 1, the laser welding device 100 further comprises an image pickup device 6 arranged on the base 1, and the laser welding device can be alternatively arranged or simultaneously arranged, and obviously, the simultaneous arrangement effect is better.
Based on the above hardware structure, the present invention proposes a laser welding method, which controls the wire feeding assembly 3 so as to adjust the wire feeding length of the wire feeding assembly 3 according to the need, so that the wire feeding amount of the wire feeding assembly 3 is adapted to the welding requirement, without frequent replacement of tin balls.
Referring to fig. 5, fig. 5 is a flow chart of an embodiment of the laser welding method according to the present invention.
The laser welding method comprises the following steps:
s10: controlling the wire feeding assembly 3 to move the end of the tin wire 200 to a preset position;
s20: controlling the laser 2 to emit laser light, and irradiating the tin wire 200 at the preset position to melt the tin wire 200 until the tin wire 200 transferred by the wire feeding assembly 3 reaches the preset wire feeding length;
s30: the air supply assembly 4 is controlled to be ventilated so that molten tin flows out of the outlet of the welding head 11.
In this embodiment, by setting the air supply assembly 4, so that the tin liquid can flow out from the outlet of the welding head 11, separation of the tin liquid is quickened, and backflow of the tin liquid is avoided, and meanwhile, by setting the wire supply assembly 3, the preset length of the tin wire 200 is moved to the welding head 11, so that when the amount of the welded tin wire 200 is changed, the preset length of the tin wire 200 can be synchronously adjusted to meet the requirement, and the wire supply amount of the wire supply assembly 3 is adapted to the welding requirement, so that the tin ball does not need to be replaced frequently, and the problems of high cost and complex operation of the existing tin ball laser welding are solved.
The step S30 may be performed before the step S20, after the step S20, or in synchronization with the step S20, which is not limited in the present invention.
Further, before step S10, the method further includes:
s01: acquiring a preformed weld image at a welding position;
s02: determining a target welding tin amount according to the preformed welding seam image;
s03: and determining the preset wire feeding length of the tin wire 200 according to the target welding tin amount.
In this embodiment, the preset wire feeding length may be manually adjusted, but the manual adjustment is complicated, so in this embodiment, the target welding tin amount required for welding is determined by obtaining the preformed welding pattern, and then the preset wire feeding length is determined according to the target welding tin amount, so that the laser welding device 100 may automatically adjust the preset wire feeding length according to the welding seam, thereby helping to promote the automation degree of the laser welding device 100.
Further, after step S20, the method further includes:
s40: acquiring an actual formed weld image at a welding position;
s50: when an unshaped welding seam area exists on the actual forming welding seam image, determining the compensation welding tin amount according to the unshaped welding seam area;
s60: determining the compensation wire feeding length of the compensation tin wire 200 according to the compensation welding tin amount;
s70: and controlling the wire feeding assembly 3 to continue wire feeding according to the compensation wire feeding length.
In this embodiment, since the tin consumption of welding will change during the welding process, so that the wire feeding amount of the preset wire feeding length cannot meet the tin consumption of welding, in this embodiment, the unshaped weld region is determined by acquiring the actual formed weld image, and the compensated welding tin amount is determined according to the unshaped weld region, so as to determine the compensated wire feeding length, and then the wire is fed according to the compensated wire feeding length, so that the compensated wire feeding length is adjusted in real time according to the unshaped weld region, so that the wire feeding amount of the wire feeding assembly 3 can meet the welding requirement.
It will be appreciated that in a specific implementation, the preset wire feeding length is 10mm, and the corresponding weld area is 10mm 2 For the sake of example, when the wire feeding length of the wire feeding assembly 3 is 5mm, theoretically the unformed weld area is 10mm 2 The saidThe remaining wire feed length of the wire feed assembly 3 should be 5mm, but in this case the unshaped weld area is determined to be 4mm from the actual weld image 2 And when the compensation wire feeding length is determined to be 6mm, namely the residual wire feeding length of the wire feeding assembly 3 is adjusted to be 6mm, so that the compensation wire feeding length is adjusted in real time according to the unshaped weld joint area, and the wire feeding amount of the wire feeding assembly 3 can meet the welding requirement.
In order to control the wire feeding speed of the wire feeding assembly 3, in this embodiment, step S20 further includes:
s21: acquiring the actual wire feeding length of the wire feeding assembly 3;
s22: when the actual wire feeding length is smaller than k×preset wire feeding length, controlling the wire feeding assembly 3 to transfer the tin wire 200 at a first preset speed;
it will be appreciated that the range of K should be: k is more than 0 and less than 1.
S23: when the actual wire feeding length is greater than or equal to k×a preset wire feeding length, the wire feeding assembly 3 is controlled to transfer the tin wire 200 at a second preset speed, where the second preset speed is less than the first preset speed.
In this embodiment, by obtaining the actual wire feeding length, and controlling the wire feeding assembly 3 to transfer the tin wire 200 at a first preset speed when the actual wire feeding length is less than k×preset wire feeding length, and controlling the wire feeding assembly 3 to transfer the tin wire 200 at a second preset speed when the actual wire feeding length is greater than or equal to k×preset wire feeding length, when the wire feeding margin of the wire feeding assembly 3 is greater, the wire feeding assembly 3 feeds the wire at a greater speed, when the wire feeding margin of the wire feeding assembly 3 is smaller, the wire feeding speed of the wire feeding assembly 3 is reduced, so as to avoid excessive wire feeding of the wire feeding assembly 3, resulting in build up welding, thereby not only improving the wire feeding speed of the wire feeding assembly 3, but also ensuring the wire feeding precision of the wire feeding assembly 3.
In specific reality, taking k=0.5, the preset wire feeding length is 10mm, the first preset speed is 0.5mm/s, the second preset speed is 0.2mm/s as an example, when the actual wire feeding length is 4mm, the wire feeding assembly 3 feeds wires with 0.5mm/s, and when the actual wire feeding length is 7 mm, the wire feeding assembly 3 feeds wires with 0.2 mm/s.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the specification and drawings of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (8)
1. A laser welding apparatus, comprising:
the machine seat is provided with an optical axis and is provided with a welding head;
the laser is arranged on the base and is positioned on the optical axis;
the wire feeding assembly is used for conveying tin wires into the welding head;
the air supply assembly is communicated with the welding head and used for supplying air to the welding head;
when the wire feeding assembly moves the tin wire to the corresponding position of the welding head, the laser emits laser to irradiate the tin wire so as to melt the tin wire into tin liquid, and meanwhile, the air feeding assembly ventilates the welding head so as to enable the tin liquid to flow onto a welded piece for welding;
the welding head is provided with a through hole;
the wire feeding assembly includes:
a mounting base;
the charging tray is arranged on the mounting seat and used for mounting tin wire coil materials;
the wire feeding pipe penetrates through the through hole; the method comprises the steps of,
the wire feeding driving device is arranged on the mounting seat and used for driving the tin wire to move;
the middle part of the wire feeding pipe is arranged in the through hole; and/or the number of the groups of groups,
the wire feeding pipe obliquely penetrates through the through hole.
2. The laser welding apparatus of claim 1, wherein the wire feed pipe comprises a pipe body and a sealing sleeve sleeved at an outlet of the pipe body.
3. The laser welding apparatus of claim 1, wherein the wire feed assembly further comprises an encoder disposed on the mount for measuring a length of movement of the tin wire.
4. The laser welding device of claim 1, further comprising an infrared temperature measurement device disposed on the base, the infrared temperature measurement device being coaxially disposed with the laser; and/or the number of the groups of groups,
the laser welding device further comprises a camera device arranged on the base, and the camera device and the laser are coaxially arranged.
5. A laser welding method based on the laser welding apparatus according to any one of claims 1 to 4, characterized in that the laser welding method comprises the steps of:
controlling the wire feeding assembly to transfer the end part of the tin wire to a preset position;
controlling a laser to emit laser, and irradiating the tin wire at the preset position to melt the tin wire until the tin wire transferred by the wire feeding assembly reaches the preset wire feeding length;
and controlling ventilation of the air supply assembly so as to enable molten tin to flow out of an outlet of the welding head.
6. The laser welding method of claim 5, wherein the step of controlling the wire feed assembly to move the end of the tin wire to a predetermined position is preceded by the step of:
acquiring a preformed weld image at a welding position;
determining a target welding tin amount according to the preformed welding seam image;
and determining the preset wire feeding length of the tin wire according to the target welding tin amount.
7. The laser welding method according to claim 5, wherein the step of controlling the laser to emit laser light to irradiate the tin wire at the predetermined position to melt the tin wire until the tin wire transferred by the wire transfer assembly reaches a predetermined wire transfer length, further comprises:
acquiring an actual formed weld image at a welding position;
when an unshaped welding seam area exists on the actual forming welding seam image, determining the compensation welding tin amount according to the unshaped welding seam area;
determining the compensation wire feeding length of the compensation tin wire according to the compensation welding tin amount;
and controlling the wire feeding assembly to continue wire feeding according to the length of the compensating wire feeding.
8. The laser welding method as claimed in claim 5, wherein the step of controlling the laser to emit laser light to irradiate the tin wire at the predetermined position to melt the tin wire until the tin wire transferred by the wire transfer assembly reaches a predetermined wire transfer length comprises:
acquiring the actual wire feeding length of the wire feeding assembly;
when the actual wire feeding length is smaller than K, the wire feeding assembly is controlled to convey the tin wire at a first preset speed;
when the actual wire feeding length is greater than or equal to K, the wire feeding assembly is controlled to convey the tin wire at a second preset speed, wherein the second preset speed is smaller than the first preset speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310989198.XA CN116713549B (en) | 2023-08-08 | 2023-08-08 | Laser welding device and laser welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310989198.XA CN116713549B (en) | 2023-08-08 | 2023-08-08 | Laser welding device and laser welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116713549A true CN116713549A (en) | 2023-09-08 |
| CN116713549B CN116713549B (en) | 2023-11-10 |
Family
ID=87875540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310989198.XA Active CN116713549B (en) | 2023-08-08 | 2023-08-08 | Laser welding device and laser welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116713549B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578227A (en) * | 1996-11-22 | 1996-11-26 | Rabinovich; Joshua E. | Rapid prototyping system |
| DE102009017900A1 (en) * | 2009-04-17 | 2010-10-28 | Precitec Kg | Laser processing head for hard soldering or welding by laser beam, comprises a housing in which a focusing optic for working laser beam is arranged, a wire routing head of a wire routing device holding in the housing, and a camera |
| CN104400168A (en) * | 2014-10-17 | 2015-03-11 | 武汉凌云光电科技有限责任公司 | Automatic tin feeding laser welding method |
| CN111299738A (en) * | 2019-12-05 | 2020-06-19 | 武汉欣尔特科技有限公司 | Tin wire quantitatively cutting and clamping laser soldering system and soldering method thereof |
| CN114700589A (en) * | 2022-04-21 | 2022-07-05 | 南京理工大学 | Aluminum alloy sheet butt weld reinforcement control device and method for compensating weld gap |
| CN217316465U (en) * | 2022-01-07 | 2022-08-30 | 武汉宝悍焊接设备有限公司 | Closed-loop compensation wire feeding adjusting device of welding wire feeder of laser welding machine |
| WO2022214346A2 (en) * | 2021-04-07 | 2022-10-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Laser machining head having a housing and a welding nozzle |
| CN218612103U (en) * | 2022-11-02 | 2023-03-14 | 武汉雷英激光科技有限公司 | Full-automatic tin wire feeding device for laser tin soldering |
| CN115846787A (en) * | 2023-03-02 | 2023-03-28 | 武汉松盛光电科技有限公司 | Control method of ring forming device, control device, ring forming device and storage medium |
-
2023
- 2023-08-08 CN CN202310989198.XA patent/CN116713549B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578227A (en) * | 1996-11-22 | 1996-11-26 | Rabinovich; Joshua E. | Rapid prototyping system |
| DE102009017900A1 (en) * | 2009-04-17 | 2010-10-28 | Precitec Kg | Laser processing head for hard soldering or welding by laser beam, comprises a housing in which a focusing optic for working laser beam is arranged, a wire routing head of a wire routing device holding in the housing, and a camera |
| CN104400168A (en) * | 2014-10-17 | 2015-03-11 | 武汉凌云光电科技有限责任公司 | Automatic tin feeding laser welding method |
| CN111299738A (en) * | 2019-12-05 | 2020-06-19 | 武汉欣尔特科技有限公司 | Tin wire quantitatively cutting and clamping laser soldering system and soldering method thereof |
| WO2022214346A2 (en) * | 2021-04-07 | 2022-10-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Laser machining head having a housing and a welding nozzle |
| CN217316465U (en) * | 2022-01-07 | 2022-08-30 | 武汉宝悍焊接设备有限公司 | Closed-loop compensation wire feeding adjusting device of welding wire feeder of laser welding machine |
| CN114700589A (en) * | 2022-04-21 | 2022-07-05 | 南京理工大学 | Aluminum alloy sheet butt weld reinforcement control device and method for compensating weld gap |
| CN218612103U (en) * | 2022-11-02 | 2023-03-14 | 武汉雷英激光科技有限公司 | Full-automatic tin wire feeding device for laser tin soldering |
| CN115846787A (en) * | 2023-03-02 | 2023-03-28 | 武汉松盛光电科技有限公司 | Control method of ring forming device, control device, ring forming device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116713549B (en) | 2023-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5043764B2 (en) | Laser type soldering method and apparatus | |
| CN109789512A (en) | For by the method and laser machine of the first and second workpiece section laser weldings | |
| JP2002001521A (en) | Method and device for laser beam soldering | |
| EP4013196A1 (en) | Laser soldering method and device | |
| US20170001268A1 (en) | Welding system | |
| KR102438105B1 (en) | friction stir welding device | |
| JP6227992B2 (en) | Soldering apparatus and method | |
| CN116713549B (en) | Laser welding device and laser welding method | |
| CN111203605B (en) | Laser welding method and soldering machine | |
| JP2022118112A (en) | Laser processing apparatus, method of manufacturing bearing, method of manufacturing machine, method of manufacturing vehicle, bearing, machine, and vehicle | |
| CN105562901B (en) | Tig torch | |
| US20180126556A1 (en) | Remotely operated manual welding method and welding robot implementing such a method | |
| CN112008177B (en) | Welding device for welding by laser and robot device provided with welding device | |
| CN210648953U (en) | Welding system | |
| JP2022018992A (en) | Production apparatus for brazing structure, production method therefor, controller, control method and program | |
| KR100641813B1 (en) | Apparatus for brazing multi point of articles | |
| CN214518045U (en) | Spot welding machine | |
| JP3456112B2 (en) | Soldering iron temperature measuring method and soldering device | |
| JP3562217B2 (en) | Automatic soldering equipment | |
| CN114122863A (en) | Automatic tin equipment that wards off of connector | |
| US9919423B2 (en) | Positioning device | |
| KR20180016433A (en) | Machines for laser machining of profiles and methods for performing incline cutting operations on profiles by this machine | |
| JP6406687B2 (en) | Soldering device | |
| CN112276308A (en) | Be used for robot tube sheet welded multi-functional welder | |
| JPS60124467A (en) | Brazing robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |