CN115533350A - Laser welding equipment and welding method thereof - Google Patents
Laser welding equipment and welding method thereof Download PDFInfo
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- CN115533350A CN115533350A CN202211245691.2A CN202211245691A CN115533350A CN 115533350 A CN115533350 A CN 115533350A CN 202211245691 A CN202211245691 A CN 202211245691A CN 115533350 A CN115533350 A CN 115533350A
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- 238000003466 welding Methods 0.000 title claims abstract description 275
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 229910000679 solder Inorganic materials 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- 230000004907 flux Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000007723 transport mechanism Effects 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 13
- 238000005476 soldering Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- Optics & Photonics (AREA)
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Abstract
The application belongs to the technical field of laser welding, and discloses laser welding equipment and a welding method thereof, wherein the laser welding equipment comprises an installation table and a laser welding mechanism, the installation table is provided with an installation frame and a welding table, the installation frame is installed on the installation table, and a channel is arranged between the installation frame and the installation table; the welding table is positioned below the mounting frame and is mounted on the mounting table; laser welding mechanism includes welding mount pad and the soldered connection that is used for sending laser, and the soldered connection is no less than three, and soldered connection fixed mounting is in welding mount pad, and welding mount pad installs on the mounting bracket and aligns in vertical direction with the welding bench. This application has the PCB board with the camera through laser welding's mode and welds on automobile body part, and a plurality of laser points act on simultaneously and weld simultaneously the PCB board of camera and a plurality of positions of automobile body part, have reduced the skew of camera PCB board in welding process, have improved welding quality, have strengthened the installation stability of camera, have reduced the emergence of the accident that the camera drops and causes.
Description
Technical Field
The application belongs to the technical field of laser welding and relates to laser welding equipment and a welding method thereof.
Background
Semi-automatic driving assistance and automatic driving are trends in development of the current automobile industry, and video images provided by the rearview cameras and the 360-degree all-round-looking cameras can enable drivers to better know the environmental conditions around the automobile and can be used as input information in a highly-automatic-driving automobile. Therefore, the camera is gradually becoming one of indispensable parts of the automobile. The small-size and high cost performance high definition camera will help the automobile beautifully and adapt to the constantly changing requirements of the automobile factory, and assist the development of semi-automatic assistant driving and automatic driving automobile.
Among the relevant technical means, on-vehicle camera bonds in the car through glue, along with the infiltration of rainwater and the reason such as shining of sunshine for the practical life of glue shortens, drops easily at the in-process that uses, has increased the unexpected risk of semi-automatic supplementary driving and autopilot's car in the in-process of traveling.
Aiming at the related technical means, the traditional vehicle-mounted camera is bonded on the vehicle body through glue, and the defect of easy falling exists in the using process.
Disclosure of Invention
In order to improve the defect that the traditional vehicle-mounted camera is bonded on a vehicle body through glue and easily falls off in the using process, the application provides laser welding equipment and a welding method thereof.
In a first aspect, the present application provides a laser welding apparatus, which adopts the following technical solution:
a laser welding apparatus, comprising a laser welding device,
a mounting table; the mounting table is provided with a mounting frame and a welding table for welding, the mounting frame is mounted on the mounting table, and a channel is formed between the mounting frame and the mounting table; the welding table is positioned below the mounting frame and is mounted on the mounting table;
the laser welding mechanism comprises a welding head and a welding installation seat, wherein the welding head and the welding installation seat are used for emitting laser, the number of the welding head is not less than three, the welding head is fixedly installed on the welding installation seat, and the welding installation seat is installed on the installation frame and is aligned with the welding table in the vertical direction.
Through adopting above-mentioned technical scheme, place the automobile body part in the welding bench, the PCB board of camera is placed in the automobile body part and is treated the welding department, and the welding mount pad aligns the cooperation with the welding bench for a plurality of soldered connections produce a plurality of laser points simultaneously, and a plurality of laser points simultaneous action can carry out the while welding to the PCB board of camera and a plurality of positions of automobile body part, has reduced the skew of camera PCB board in welding process, has improved welding quality. Compared with the prior art, the camera has the advantages that the PCB of the camera is welded on the vehicle body component in a laser welding mode, so that the installation stability of the camera is enhanced, and the occurrence of accidents caused by falling of the camera is reduced.
Optionally, the laser welding device further comprises a horizontal movement mechanism for controlling the horizontal movement of the laser welding mechanism, the horizontal movement mechanism comprises a sliding plate, a second lead screw and a second driving piece for driving the second lead screw to move, the sliding plate is provided with a second lead screw nut, the second lead screw nut is in threaded connection with the second lead screw, the second driving piece is mounted on the mounting frame, and the sliding plate is connected with the mounting frame in a sliding manner; the welding installation seat is installed on the sliding plate.
Through adopting above-mentioned technical scheme, the second driving piece drive second lead screw rotates, and the second lead screw drives the direction motion of slide along the mounting bracket to drive welding mount pad and soldered connection along the direction motion of mounting bracket, make the soldered connection wait welded position for automobile body and camera adjustment, thereby improve welded precision.
Optionally, the horizontal movement mechanism further includes a sensor for detecting the position of the welding mounting seat and a controller for controlling the welding mounting seat to move or stop, the sensor is electrically connected to an input end of the controller and outputs an electrical signal of the position of the welding mounting seat, the sensor is mounted on the welding table, and the controller is mounted on the mounting table.
By adopting the technical scheme, in the moving process of the welding installation seat, the sensor outputs the position electric signal of the welding installation seat on the installation frame to the controller, the controller processes the position signal and compares the position signal with the position information of the welding table, so that the output electric signal controls the welding installation seat to move or stop to adjust the position of the welding installation seat, the welding head is positioned right above the welding installation seat, and the welding precision is further improved.
Optionally, laser welding mechanism still includes flexible subassembly, flexible unit mount in the slide, flexible subassembly includes the mounting panel, is used for the drive the mounting panel orientation the direction of mount table is close to or the first driving piece of keeping away from, first driving piece fixed mounting in the slide, the mounting panel is located the output of first driving piece, the welding mount pad with mounting panel fixed connection.
Through adopting above-mentioned technical scheme, first driving piece drive mounting panel is close to or keeps away from towards the direction of mount table, and the mounting panel drives the direction of welding mount pad towards the mount table and is close to or keeps away from to the distance between adjustment control soldered connection and camera PCB board and the automobile body part promotes welding quality, has enlarged this equipment simultaneously and has treated the suitability of welded object to the difference.
Optionally, still include transport mechanism, transport mechanism includes the conveyer belt subassembly that is used for conveying PBC board or automobile body part and is used for pressing from both sides to get the material on the conveyer belt subassembly to the manipulator of welding bench, the conveyer belt subassembly is provided with two sets ofly and is located welding bench both sides, the manipulator install in the mount table.
Through adopting above-mentioned technical scheme, PCB board and automobile body part convey through conveyer belt subassembly respectively, and the manipulator is placed automobile body part and camera PCB board on the conveyer belt subassembly in proper order on the welding bench, and automatic feeding is realized in the cooperation of conveyer belt subassembly and manipulator, improves the speed of material loading to improve welded efficiency.
Optionally, the mounting bracket dustcoat is equipped with the protection casing, the protection casing is provided with and is used for dodging transport mechanism dodges the groove, the protection casing with mounting bracket fixed connection.
Through adopting above-mentioned technical scheme, the protection casing cover is located outside the mounting bracket, can get up the relative isolation of welded operation, avoids the high temperature material that produces to cause the injury to the worker among the welding process, ensures worker's safety.
In a second aspect, the present application provides a welding method for a laser welding device, which adopts the following technical scheme:
a welding method of a laser welding apparatus, comprising the steps of:
preparing a material; the method comprises the following steps of taking and placing a vehicle body part on a welding table, and enabling a point to be welded of the vehicle body part to be located at the center point of the welding table; coating solder on the to-be-welded points of the camera PCB, and placing the to-be-welded points of the camera PCB to form welding points on the to-be-welded points of the vehicle body parts;
aligning the welding table with the welding mounting seat; aligning and welding the fixed seat on the welding table, aligning a welding head with a to-be-welded point of a camera PCB (printed circuit board) on the welding table and a vehicle body part, and adjusting the distance between the welding head and the welding point;
welding a camera PCB and a vehicle body component; the laser is irradiated to the camera PCB and the to-be-welded points of the vehicle body parts through a plurality of welding heads to be heated; the back metal of the welding point position leads the welding flux to be changed into a molten liquid state when reaching the melting point of the welding flux in a heat conduction mode; the liquid solder is physically reflected with the camera PCB and the vehicle body component, and an alloy layer is formed at the welding point.
By adopting the technical scheme, the camera PCB is welded on the vehicle body component in a multipoint laser welding mode, the welding process belongs to a heat conduction type, the heat on the surface of the camera PCB is guided to the welding flux through heat conduction, the welding flux is melted to form a specific molten pool to adhere the camera PCB and the vehicle body component through controlling parameters such as the width, the energy, the peak power, the repetition frequency and the like of laser pulse, the welding flux forms an alloy layer at the welding point after cooling, the installation stability of the camera is enhanced, and the occurrence of accidents caused by falling of the camera is reduced.
Optionally, the step of preparing the material comprises: and coating the solder on the to-be-welded points of the camera PCB, wherein the number of the to-be-welded points is not less than three, and the positions of the welding points correspond to the positions of the welding heads one by one.
By adopting the technical scheme, the plurality of welding heads simultaneously generate the plurality of laser points, the plurality of laser points simultaneously act on the PCB of the camera and a plurality of positions of the vehicle body component to be simultaneously welded, the deviation of the camera PCB in the welding process is reduced, and the welding accuracy and the welding quality between the camera PCB and the vehicle body component are improved.
Optionally, in the step of aligning the soldering station with the soldering mount, the step includes: the second driving piece drives the screw rod to rotate, and the screw rod rotates to drive the sliding plate to move to the position right above the welding table along the direction of the mounting frame; the first driving piece drives the mounting plate to be close to or far away from the mounting table in the direction towards the mounting table, so that the distance between the welding head and the welding points of the camera PCB and the vehicle body part is adjusted.
Through adopting above-mentioned technical scheme, the adjustment soldered connection is located the welded seat directly over for the laser effect that the soldered connection produced and the welding point department of camera PCB board and automobile body part, secondly the distance between adjustment soldered connection and the welding point, make the position and the height of laser effect more suitable, thereby improve welded precision and welding quality between camera PCB board and the automobile body part.
Optionally, the solder is solder paste.
By adopting the technical scheme, the soldering paste has unique high oxidation resistance, less welding scum than common solder, and has the characteristics of less loss, good fluidity, strong weldability, uniform and bright welding spots and the like.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the vehicle body component is placed on the welding table, the PCB of the camera is placed at the position where the vehicle body component is to be welded, the welding mounting seat is aligned and matched with the welding table, a plurality of welding heads simultaneously generate a plurality of laser points, the plurality of laser points simultaneously act on the PCB of the camera and a plurality of positions of the vehicle body component to be welded simultaneously, the deviation of the camera PCB in the welding process is reduced, and the welding quality is improved. Compared with the prior art, the camera has the advantages that the PCB of the camera is welded on the vehicle body component in a laser welding mode, so that the installation stability of the camera is enhanced, and the occurrence of accidents caused by falling of the camera is reduced.
2. The second driving piece drives the second screw rod to rotate, and the second screw rod drives the slide to move along the direction of mounting bracket, thereby driving the welding mounting seat and the welding head to move along the direction of mounting bracket, and the welding head is adjusted for automobile body and camera to wait welded position, thereby improving the welding precision.
3. First driving piece drive mounting panel is close to or keeps away from towards the direction of mount table, and the mounting panel drives the direction of welding mount pad towards the mount table and is close to or keeps away from to the distance between adjustment control soldered connection and camera PCB board and the automobile body part promotes welding quality, has enlarged this equipment simultaneously and has treated the suitability of welded object to the difference.
Drawings
Fig. 1 is a schematic view of the overall structure of a laser welding apparatus according to the present application.
Fig. 2 is a schematic view of an additional protective cover of a laser welding apparatus of the present application.
Fig. 3 is a schematic structural diagram of a highlighted laser welding mechanism of the laser welding equipment.
Fig. 4 is a schematic structural diagram of a highlighted horizontal movement mechanism of a laser welding device of the present application.
Description of reference numerals:
1. an installation table; 11. a mounting frame; 12. a welding table; 13. a channel; 14. a first lead screw; 15. a drive motor; 17. a protective cover; 171. an avoidance groove; 18. accommodating grooves; 19. a second limiting plate; 2. a laser welding mechanism; 21. welding a head; 22. welding the mounting seat; 23. a telescopic assembly; 231. mounting a plate; 232. a first driving member; 233. a slider; 3. a horizontal movement mechanism; 31. a slide plate; 312. a slide rail; 32. a second screw rod; 33. a second driving member; 4. a transport mechanism; 41. a conveyor belt assembly.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses laser welding equipment.
Referring to fig. 1, a laser welding apparatus includes a mounting table 1, a laser welding mechanism 2, a horizontal movement mechanism 3, and a transfer mechanism 4, the horizontal movement mechanism 3 is mounted on the mounting table 1 and used for driving the laser welding mechanism 2 to move in a horizontal direction so as to adjust a position relative to the mounting table 1, and the transfer mechanism 4 is used for transferring and transferring a PBC plate and a vehicle body part.
The mount 1 is provided in a rectangular parallelepiped shape, the mount 1 has a pair of long sides parallel to each other and a pair of short sides parallel to each other, the longitudinal direction of the mount 1 is parallel to the X axis, and the width direction of the mount 1 is parallel to the Y axis. The mounting table 1 is provided with a mounting frame 11 and a welding table 12 for welding, the length direction of the mounting frame 11 is consistent with the length direction of the mounting table 1, the mounting frame 11 stretches across the mounting table 1 and is mounted on the mounting table 1, and a material conveying channel 13 is arranged between the mounting frame 11 and the mounting table 1. The welding table 12 is located below the mounting frame 11 and is fixedly connected with the mounting table 1. In the present embodiment, the soldering stage 12 is located on the central axis of the mounting stage 1 in the longitudinal direction.
The mounting table 1 is provided with a first lead screw 14 for driving the mounting frame 11 to move along the Y-axis direction, a driving motor 15 for driving the first lead screw 14 to rotate and a first limiting plate, the driving motor 15 is fixedly installed on the mounting table 1, the first limiting plate is located at one end, away from the driving motor 15, of the mounting table 1, one end of the first lead screw 14 is fixedly connected with the output end of the driving motor 15, and the other end of the first lead screw 14 penetrates through the first limiting plate and is in running fit with the first limiting plate. The end surface of the mounting bracket 11 facing the mounting platform 1 is provided with a first lead screw nut (not shown in the figure), the first lead screw 14 penetrates through the first lead screw nut to be in running fit with the mounting bracket 11, and the first limiting plate is used for limiting the mounting bracket 11 to move along the direction of the first lead screw 14 and separate from the first lead screw 14. In this embodiment, two sets of the first lead screws 14 and the driving motors 15 are provided, and the first lead screws 14 and the driving motors 15 are provided in a one-to-one correspondence manner and are respectively located at two ends of the width of the installation table 1.
Referring to fig. 2, a protective cover 17 is covered on the mounting frame 11, and the protective cover 17 is fixedly connected with the mounting frame 11. The protection casing 17 can be with the relative isolation of welded operation, avoids the high temperature material that produces to cause the injury to the worker in the welding process, ensures worker's safety. The shield 17 is provided with an evacuation slot 171 for evacuating the conveying assembly.
Referring to fig. 1 and 3, the laser welding mechanism 2 includes a welding head 21 for emitting laser, a welding mount 22 for mounting the welding head 21, and a telescopic assembly 23 for controlling a distance between the welding mount 22 and the welding stage 12, the number of the welding heads 21 is not less than three, the welding head 21 is fixedly mounted on the welding mount 22, the telescopic assembly 23 is located at one end of the welding mount 22, and the welding head 21 is located at the other end of the welding mount 22. In the present embodiment, three welding heads 21 are provided, and the three welding heads 21 are uniformly distributed on the welding mounting seat 22 at intervals in a circumferential shape.
The telescopic assembly 23 includes a mounting plate 231 and a first driving member 232 for driving the mounting plate 231 to approach or leave towards the mounting table 1, the mounting plate 231 is located at an output end of the first driving member 232, the welding mounting seat 22 is located at an end surface of the mounting plate 231 facing the mounting table 1 and is fixedly connected with the mounting plate 231, and the first driving member 232 is mounted on the mounting frame 11. In the present embodiment, the output end of the first driving member 232 faces the mounting table 1, and the first driving member 232 is a motor. The solder mount 22 is secured in vertical alignment with the solder station 12 during the soldering operation. First driving piece 232 drives mounting panel 231 and is close to or keeps away from towards the direction of mount table 1, and mounting panel 231 drives welding mount 22 and is close to or keeps away from towards the direction of mount table 1 to the distance between adjustment control soldered connection 21 and camera PCB board and the automobile body part promotes welding quality, has enlarged this equipment simultaneously and has treated the suitability of welded object to the difference.
In order to improve the movement stability of the welding mount 22. The end surface of the mounting plate 231 facing the sliding plate 31 is provided with a slider 233, the end surface of the sliding plate 31 facing the mounting plate 231 is provided with a slide rail 312, the length direction of the slide rail 312 is perpendicular to the length direction of the second screw rod 32, and the slide rail 312 is in sliding fit with the slider 233. The first driving element 232 drives the mounting plate 231 to move towards the direction of the mounting table 1, the slider 233 of the mounting plate 231 is in sliding fit with the slide rail 312, the slide rail 312 guides the movement path of the mounting plate 231, and meanwhile, the two sets of slide rails 312 support the mounting plate 231, so that the movement stability of the welding head 21 is improved.
Referring to fig. 4, the horizontal movement mechanism 3 includes a sliding plate 31, a second screw rod 32 driving the sliding plate 31 to move, and a second driving member 33 driving the second screw rod 32 to move, the second driving member 33 is fixedly connected to the mounting bracket 11, one end of the second screw rod 32 is installed at an output end of the second driving member 33, and the other end of the second screw rod 32 is rotatably matched with the mounting bracket 11.
The slide plate 31 is substantially flat and rectangular, and the slide plate 31 is mounted on the mounting frame 11 and slidably connected to the mounting frame 11. One end of the slide plate 31 close to the mounting frame 11 is provided with a second lead screw nut (not shown in the figure), and the second lead screw nut is in threaded connection with a second lead screw 32. In this embodiment, the first driving element 232 is preferably installed on an end surface of the sliding plate 31 facing away from the mounting frame 11, the first driving element 232 is fixedly connected to the sliding plate 31, a length direction of the second screw rod 32 is identical to a length direction of the mounting frame 11, and the second driving element 33 is a motor. The second driving member 33 drives the second screw rod 32 to rotate, and the second screw rod 32 drives the sliding plate 31 to move along the length direction of the mounting frame 11, so as to drive the welding mounting seat 22 and the welding head 21 to move along the direction of the mounting frame 11, so that the welding head 21 adjusts the position to be welded relative to the vehicle body and the camera, and thus the welding precision is improved.
Further, the horizontal movement mechanism 3 further includes a sensor for detecting the position of the welding installation seat 22 and a controller for controlling the movement or stop of the welding installation seat 22, the sensor is electrically connected to the input end of the controller and outputs an electric signal of the position of the welding installation seat 22, the sensor is installed on the welding table 12, and the controller is installed on the installation table 1. In the moving process of the welding installation seat 22, the sensor outputs a position electric signal of the welding installation seat 22 on the installation frame 11 to be transmitted to the controller, the controller processes the position signal, and the position signal is compared according to the position information of the welding table 12, so that the output electric signal controls the welding installation seat 22 to move or stop to adjust the position of the welding installation seat 22, the welding head 21 is located right above the welding installation seat 22, and the welding precision is further improved.
The mounting table 1 is provided with the holding tank 18 towards the terminal surface of horizontal movement mechanism 3, and second driving piece 33 and second lead screw 32 are located the holding tank 18, and second driving piece 33 and the 18 tank bottoms fixed connection of holding tank have shortened the clearance between slide 31 and the mounting bracket 11. Further, in order to limit the movement range of the sliding plate 31 and prevent the sliding plate 31 from sliding out of the mounting frame 11, a second limiting plate 19 is disposed at an end of the groove bottom of the receiving groove 18 away from the second driving member 33. When the second lead screw 32 rotates, the second lead screw nut of the sliding plate 31 is driven to move to the first limiting plate, and one end of the second lead screw nut contacts and abuts against one end of the first limiting plate, which is close to the second lead screw nut, so that the movement range of the sliding plate 31 is limited.
Referring to fig. 1, the conveying mechanism 4 includes a conveyor belt assembly 41 for conveying the PBC board or the vehicle body part and two sets of manipulators (not shown in the figure) for clamping the material on the conveyor belt assembly 41 to the welding station 12, the conveyor belt assemblies 41 being disposed on both sides of the welding station 12, and the manipulators being mounted to the mounting station 1. In this embodiment, the robot is located at the middle of the two sets of conveyor belt assemblies 41. The PCB and the automobile body part are respectively conveyed through the conveying belt assembly 41, the conveying belt assembly 41 is used for feeding and conveying, the manipulator sequentially places the automobile body part and the camera PCB on the conveying belt assembly 41 on the welding table 12, the conveying belt assembly 41 is matched with the manipulator to achieve automatic feeding, and the feeding speed is improved.
The application discloses a welding method of laser welding equipment, which is suitable for the laser welding equipment and comprises the following steps:
s1, preparing materials.
S1-1, placing the vehicle body part on a welding table 12 by using a manipulator, and enabling a welding point of the vehicle body part to be located at the center point of the welding table 12. In the present embodiment of the present invention,
s1-2, coating solder on to-be-welded points of the camera PCB, wherein the to-be-welded points of the camera PCB are not less than three, and the positions of the welding points correspond to the positions of the welding heads 21 one by one. In this embodiment, the to-be-welded points of the camera PCB are three. The solder is solder paste, the solder paste has unique high oxidation resistance, less welding scum than common solder, less loss, good flowability, high weldability, homogeneous welding spot, brightness and other features.
S1-3, placing the to-be-welded points of the camera PCB at the to-be-welded points of the vehicle body parts by using a manipulator, and enabling the to-be-welded points of the camera PCB to be overlapped with the to-be-welded points of the vehicle body parts to form welding points.
S2, aligning the welding table 12 with the welding installation seat 22.
S2-1, the driving motor 15 drives the first screw rod 14 to rotate, and the first screw rod 14 drives the mounting frame 11 to move along the Y-axis direction, so that the central axis of the welding mounting seat 22 and the central axis of the welding table 12 are located on the same plane.
S2-2, the second driving piece 33 drives the screw rod to rotate, the screw rod rotates to drive the sliding plate 31 to move to the position right above the welding table 12 along the direction of the mounting frame 11, the central axis of the welding mounting seat 22 is overlapped with the central axis of the welding table 12, and therefore the laser effect generated by the welding head 21 and the welding points of the camera PCB and the vehicle body parts are achieved.
S2-3, the first driving piece 232 drives the mounting plate 231 to be close to or far away from the mounting table 1, so that the distance between the welding head 21 and the welding points of the camera PCB and the vehicle body component is adjusted, the position and the height of the laser action are more appropriate, and the welding precision and the welding quality between the camera PCB and the vehicle body component are improved.
And S3, welding the camera PCB and the vehicle body component. The three welding heads 21 irradiate laser to the welding points of the camera PCB and the vehicle body component for heating, metal on the back of the welding points makes the welding flux reach the melting point of the welding flux and become molten liquid in a heat conduction mode, the liquid welding flux is physically reflected with the camera PCB and the vehicle body component, and an alloy layer is formed at the welding points, so that the camera PCB and the vehicle body component are fixedly connected.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the present application in any way, wherein like reference numerals refer to like parts throughout, it being understood that the words "front", "back", "left", "right", "upper" and "lower" used in the description above refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of the particular part. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A laser welding apparatus, comprising,
a mounting table (1); the mounting table (1) is provided with a mounting frame (11) and a welding table (12) for welding, the mounting frame (11) is mounted on the mounting table (1), and a channel (13) is formed between the mounting frame (11) and the mounting table (1); the welding table (12) is positioned below the mounting frame (11) and is mounted on the mounting table (1);
the laser welding mechanism (2) comprises a welding head (21) and a welding installation seat (22), the welding head (21) is used for emitting laser, the number of the welding head (21) is not less than three, the welding head (21) is fixedly installed on the welding installation seat (22), and the welding installation seat (22) is installed on the installation frame (11) and is aligned with the welding table (12) in the vertical direction.
2. The laser welding device according to claim 1, further comprising a horizontal movement mechanism (3) for controlling the laser welding mechanism (2) to move horizontally, wherein the horizontal movement mechanism (3) comprises a sliding plate (31), a second lead screw (32) and a second driving member (33) for driving the second lead screw (32) to move, the sliding plate (31) is provided with a second lead screw nut, the second lead screw nut is in threaded connection with the second lead screw (32), the second driving member (33) is mounted on the mounting frame (11), and the sliding plate (31) is in sliding connection with the mounting frame (11); the welding installation seat (22) is installed on the sliding plate (31).
3. A laser welding apparatus according to claim 2, wherein the horizontal movement mechanism (3) further comprises a sensor for detecting a position of the welding mount (22) and a controller for controlling the movement or stop of the welding mount (22), the sensor being electrically connected to an input of the controller and outputting an electric signal of the position of the welding mount (22), the sensor being mounted on the welding stage (12), and the controller being mounted on the mounting stage (1).
4. A laser welding apparatus according to claim 2, characterized in that the laser welding mechanism (2) further comprises a telescopic assembly (23), the telescopic assembly (23) is mounted on the sliding plate (31), the telescopic assembly (23) comprises a mounting plate (231), a first driving member (232) for driving the mounting plate (231) to approach or depart from the mounting table (1), the first driving member (232) is fixedly mounted on the sliding plate (31), the mounting plate (231) is located at an output end of the first driving member (232), and the welding mounting seat (22) is fixedly connected with the mounting plate (231).
5. A laser welding apparatus according to claim 1, characterized by further comprising a transfer mechanism (4), said transfer mechanism (4) comprising a conveyor belt assembly (41) for transferring PBC panels or body parts and a robot for gripping material on said conveyor belt assembly (41) to said welding station (12), said conveyor belt assembly (41) being provided in two sets and located on both sides of said welding station (12), said robot being mounted to said mounting station (1).
6. A laser welding apparatus as claimed in claim 5, characterized in that the mounting frame (11) is provided with a protective cover (17) in its outer cover, the protective cover (17) being provided with an evacuation groove (171) for evacuating the transport mechanism (4), the protective cover (17) being fixedly connected to the mounting frame (11).
7. A welding method of a laser welding apparatus using the laser welding apparatus according to any one of claims 1 to 6, characterized by comprising the steps of:
preparing a material; the method comprises the following steps of taking and placing the vehicle body part on a welding table (12), and enabling a point to be welded of the vehicle body part to be located at the center point of the welding table (12); coating solder on the to-be-welded points of the camera PCB, and placing the to-be-welded points of the camera PCB at the to-be-welded points of the vehicle body parts to form welding points;
aligning the welding table (12) with the welding mount (22); the welding fixing seat is aligned to the welding table (12), so that the welding head (21) is aligned to the to-be-welded points of the camera PCB on the welding table (12) and the vehicle body part, and the distance between the welding head (21) and the welding points is adjusted;
welding a camera PCB and a vehicle body component; laser is irradiated to the to-be-welded points of the camera PCB and the vehicle body component through a plurality of welding heads (21) to be heated; the back metal of the welding point position leads the welding flux to reach the melting point of the welding flux and become molten liquid through a heat conduction mode; the liquid solder is physically reflected with the camera PCB and the vehicle body component, and an alloy layer is formed at the welding point.
8. The welding method of a laser welding apparatus according to claim 7, wherein the material preparation step includes: and coating the solder on the to-be-welded points of the camera PCB, wherein the number of the to-be-welded points is not less than three, and the positions of the welding points correspond to the positions of the welding heads (21) one by one.
9. The welding method of a laser welding apparatus according to claim 7, wherein in the step of aligning the welding stage (12) with the welding mount (22), comprising: the second driving piece (33) drives the screw rod to rotate, and the screw rod rotates to drive the sliding plate (31) to move to the position right above the welding table (12) along the direction of the mounting frame (11); the first driving piece (232) drives the mounting plate (231) to move close to or away from the mounting table (1), so that the distance between the welding head (21) and the welding points of the camera PCB and the vehicle body part is adjusted.
10. The welding method of a laser welding apparatus according to claim 7, wherein the solder is solder paste.
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| CN202211245691.2A CN115533350A (en) | 2022-10-12 | 2022-10-12 | Laser welding equipment and welding method thereof |
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| CN202211245691.2A CN115533350A (en) | 2022-10-12 | 2022-10-12 | Laser welding equipment and welding method thereof |
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Cited By (1)
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| CN117961284A (en) * | 2024-03-29 | 2024-05-03 | 泰州市强达不锈钢丝绳有限公司 | Connection welding equipment for steel wire rope rigging |
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