CN219767094U - Laser welding platform shared by flat plate and cylinder - Google Patents

Abstract

The utility model belongs to the technical field of material manufacturing and welding devices, and relates to a laser welding platform shared by a flat plate and a cylinder; a conveying device is arranged in the frame, a flat welding magnetic attraction platform is arranged at the head part of the conveying device, a cylindrical welding magnetic attraction platform is arranged at the tail part of the conveying device, and the flat and cylindrical welding magnetic attraction platform is used for adsorbing the flat; a cylinder welding lifting table is arranged below the cylinder welding magnetic attraction platform and is used for splicing the welded flat plates end to end into a cylinder; the laser head moving device is arranged on the top of the frame in a sliding manner, the focal length focusing lifting device is arranged on one side of the laser head moving device in a sliding manner, and the laser head is arranged on one side of the focal length focusing lifting device; the laser head, the laser display and the laser are electrically connected; the utility model realizes the integrated welding from the flat plate to the cylinder; the welding platform is not required to be replaced from the flat plate to the cylinder, so that the damage caused by carrying the flat plate and manually rolling is avoided, and the efficiency is improved; the cylinder welding lifting table is designed to realize the tight splicing of the ends of the cylinders, so that the problem of large welding seams in the prior art is solved.

Description

Laser welding platform shared by flat plate and cylinder

Technical Field

The utility model belongs to the technical field of material manufacturing welding devices, and particularly relates to a laser welding platform shared by a flat plate and a cylinder.

Background

In the field of petrochemical industry, aerospace and other mechanical manufacturing, welded flat plate materials are required to be rolled and spliced, and a cylindrical structure is formed through head-to-tail welding for subsequent use. In the traditional welding process, the welding between the flat plates and the flat plate rolling welding are separated, manual splicing is needed for traditional flat plate material rolling splicing, the surface of the reflective film has strict requirements, and the surface of the reflective film is damaged due to manual splicing. Pollution and the like, resulting in low working efficiency. In addition, in order to ensure the welding strength, two schemes exist in the conventional welding of the flat plate and the cylinder: 1. front and back laser welding; 2. laser welding after wire filling; the two welding methods have the defects that the welding joint is too large, the heat affected zone is large, the brightness loss of the spliced part is caused after the reflective film is manufactured, and the reflective performance is greatly influenced by the reflective dark zone.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a laser welding platform shared by a flat plate and a cylinder; solves the problems of damage and pollution of the surface of the reflective film caused by the rolling of the flat plate in the prior art; solves the problem of large welded joint after the welding of the prior flat plate and the cylinder, and improves the working efficiency.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a laser welding platform that dull and stereotyped and drum share, includes frame, laser instrument, laser display, magnetism inhale switch control box, be equipped with conveyer in the frame, conveyer's head is equipped with dull and stereotyped welding magnetism and inhale the platform, and conveyer's afterbody is equipped with drum welding magnetism and inhale the platform, conveyer is used for transmitting the dull and stereotyped; the flat welding magnetic attraction platforms and the cylindrical welding magnetic attraction platforms are all used for adsorbing the flat; the magnetic switch control box is arranged on the frame and used for controlling the opening and closing of the flat welding magnetic suction platform and the cylinder welding magnetic suction platform and the size of the adsorption force; a cylinder welding lifting table is arranged below the cylinder welding magnetic attraction platform and is used for splicing the welded flat plates end to form a cylinder; the laser head moving device is arranged on the top of the frame in a sliding manner and is perpendicular to the conveying direction of the flat plate, and a focal length focusing lifting device is arranged on one side of the laser head moving device in a sliding manner and drives the laser head to move up and down; the laser head, the laser display and the laser are electrically connected.

The frame is divided into two parts, one part realizes the work of welding each flat plate, and the other part realizes the work of welding the whole flat plate after welding in a rolling way; the flat plate is welded with the magnetic suction platform, and the flat plate can be adsorbed when opened, so that the flat plate cannot move and has a leveling effect; the cylinder magnetic attraction welding platform is opened to be adsorbed and leveled, the welded cylinder can be taken out after being closed, and the cylinder welding magnetic attraction welding platform is designed in a suspending mode, so that the welded cylinder can be conveniently taken out. The focal position can be accurately determined and the size of the light spot can be accurately checked through the laser display, and whether the welding position is deviated or not can be checked in the welding process.

Preferably, the cylinder welding lifting table comprises N supporting devices and a lifting table control box, wherein N is more than or equal to 3; the cylinder welding lifting platform is electrically connected with a lifting platform control box, and the lifting platform control box is used for controlling the cylinder welding lifting platform to ascend or descend; the supporting device comprises supporting rods on two sides and a cylinder positioned between the supporting rods on two sides; the N supporting devices are sequentially arranged in an arc shape. The whole welded flat plate is enabled to be in a cylindrical shape by the cylinder welding lifting table, upward pressure can be achieved by the cylinder welding lifting table, edges between the head flat plate and the tail flat plate are enabled to be tightly attached, the problem that manual rolling is needed in existing cylinder welding is solved, working efficiency is low, the conditions of damage and pollution to the surface of the flat plate are avoided, and meanwhile the problem that head-tail splicing welding seams are large in an existing welding process is solved.

Further, the cylinder welding lifting table comprises N lifting devices and a lifting table control box, wherein N is more than or equal to 9; the N lifting devices are electrically connected with a lifting platform control box, and the lifting platform control box is used for controlling the lifting devices to ascend or descend; the lifting device comprises lifting rods at two sides and a cylinder positioned between the lifting rods at two sides; the N lifting devices are sequentially arranged in an arc shape; the lifting platform control box can independently control the lifting device, and can control the lifting device to ascend or descend according to the splicing process and the welding process, so that the head-to-tail splicing close fitting of the integral platform is better realized, the welding seam is as small as possible, and the problem that the welding seam is too large in the existing welding process is solved.

Preferably, a laser head moving guide rail is arranged at the top of the frame, and the bottom of the laser head moving device is in sliding connection with the frame through the laser head moving guide rail; and a laser head moving guide rail speed control box is arranged in the frame and used for controlling the travelling speed of the laser head moving device. The laser head moving device drives the laser head to move between the flat welding platform and the cylinder welding platform, so that the integrated work of flat welding and cylinder welding is realized.

Preferably, the focal length focusing lifting device comprises a mounting block A, a motor, a screw rod A, a sliding block A and a focusing lifting device control box, wherein the mounting block A is connected with the laser head moving device in a sliding manner, the output end of the motor is connected with the screw rod A, the screw rod A is rotationally arranged in the mounting block A, the sliding block A is sleeved on the outer wall of the screw rod A, and one side, far away from the laser head moving device, of the sliding block A is connected with the laser head; the focusing lifting device control box is arranged on the frame and used for controlling the motor to rotate positively and negatively to drive the screw rod A to rotate positively and negatively so as to enable the sliding block A to ascend or descend. The focal length focusing lifting device lifts and reduces the focal length to play a role in focusing, so that perfect light emission is achieved.

Preferably, fine tuning devices are respectively arranged on two sides of the frame, each fine tuning device comprises a mounting block B, a screw rod B and a sliding block B, and one side of each mounting block B is arranged on the side edge of the frame; the screw rod B is rotatably arranged in the mounting block B; the sliding block B is sleeved on the outer wall of the screw rod B, and a bump is arranged on one side of the sliding block B; the other side of the mounting block B is provided with a lock hole, and the side of the laser head moving device is provided with a guide rail lock catch matched with the lock hole. The guide rail lock catch is opened, and the laser head moving device can move freely; the locking and the laser head moving device cannot move, so that the deviation in the welding process is avoided.

Preferably, a folding flat plate is arranged on one side of the frame, which is close to the flat plate welding magnetic attraction platform, and the folding flat plate is connected with the frame in a hinged manner. The folding flat plate is arranged to conveniently place a second flat plate to be welded, and the folding flat plate is lowered to more conveniently operate the superposition of the focal track and the edge of the flat plate.

Preferably, the conveying device comprises a plurality of rubber rollers, the flat welding magnetic attraction platform is arranged on one side of the conveying device, and the cylindrical welding magnetic attraction platform is arranged between two rubber rollers at the tail part of the transmission device; the cylinder welding magnetic attraction platform is lower than the flat welding magnetic attraction platform. The movement of the flat plate is realized through the rotation of the rubber rollers, and a plurality of rubber rollers are arranged, so that the whole flat plate after welding can be smoothly translated.

Preferably, a film winding roller is arranged on one side of the flat welding magnetic attraction platform. In order to prevent the flat plate from being damaged and polluted in the welding and translation processes, a film rolling roller is designed, a film is rolled on the film rolling roller, and the film is attached to the surface of the flat plate in the moving process of the flat plate in a follow-up mode for protection.

Preferably, the laser is electrically connected with a water cooling device; the laser is connected with the laser head through an optical fiber; one side of the laser head moving device is provided with a laser head translation guide rail, and the focal length focusing lifting device is in sliding connection with the laser head moving device through the laser head translation guide rail; and a laser head translation control box is arranged in the frame and used for controlling the laser head translation guide rail to translate in the welding line direction. The water cooling device plays a role in cooling the laser, when the laser works, the laser needs to be started simultaneously, a large amount of heat is generated when the laser works, water which is subjected to water circulation treatment is required to cool, and the laser is prevented from overheating to stop working.

The utility model has the following beneficial effects: (1) According to the utility model, the flat welding platform and the cylinder welding platform are integrated, the laser head moves between the flat welding platform and the cylinder welding platform through the laser head moving device, the welding platform is not required to be replaced from the flat plate to the cylinder, the operation space is saved, and the damage caused when the flat plate is transported is avoided; the guide rail is designed without a plurality of welding heads, so that the cost is saved; after the welding of each flat plate is completed, the cylinder welding lifting platform assists the flat plate to automatically roll round the head and the tail and complete the welding work, so that the working efficiency is improved, and the abrasion of the surface of the flat plate in the manual rolling process is avoided; an electromagnetic suction platform auxiliary method is provided, and the surface of a flat plate is prevented from being damaged, polluted and burned by laser.

(2) The utility model provides a nondestructive welding cylinder platform, which is characterized in that a cylinder welding lifting device is designed, and pressure is provided by lifting the cylinder welding lifting device, so that head and tail flat plates are spliced and tightly combined, and no step exists; solves the problem of large welding seam existing in the prior welding method.

(3) The utility model designs the focal length focusing lifting device, which can raise and lower the focal length, realize the focusing function of the laser head and achieve perfect light emission; the side of the laser head moving device is provided with a guide rail lock catch, and the laser guide rail cannot move in the welding process, so that the phenomenon that the edge of a flat plate is burnt by laser and the welding at the welding seam position fails is avoided; in order to prevent the deviation in the welding process or to finely adjust the laser head moving device, a fine adjustment device is designed, and the whole welding platform is convenient to use aiming at fine adjustment.

(4) The film winding roller is designed, synchronization of the flat plate and the film is naturally realized in the flat plate translation process, and meanwhile, a welding mode that the front surface faces downwards and the back surface faces upwards is realized, so that front pollution and damage of the flat plate are avoided; the rubber roller enables the flat plate to translate smoothly, so that the layout is not scratched in the moving process.

Drawings

Fig. 1: the structure schematic diagram of the laser welding platform shared by the flat plate and the cylinder is provided;

fig. 2: the structure schematic diagram of the laser welding platform shared by the flat plate and the cylinder for cylinder welding

Fig. 3: a top view of a laser welding platform shared by the flat plate and the cylinder;

fig. 4: the utility model discloses a side view of a laser welding platform shared by a flat plate and a cylinder for cylinder welding;

fig. 5: the structure schematic diagram of the focus distance focusing lifting device in the utility model;

fig. 6: the utility model discloses a cross section of a focal length focusing lifting device;

fig. 7: schematic diagram of the fine tuning device in the utility model.

Wherein: 1. a frame; 2. welding a magnetic attraction platform on the flat plate; 3. a laser head moving device; 4. moving a guide rail by a laser head; 5. a speed control box for moving a guide rail by the laser head; 6. a laser head translates the guide rail; 7. a laser head translation control box; 8. a focus lifting device; 8-1, a mounting block A;8-2, a motor; 8-3, a screw rod A;8-4, a sliding block A; 9. focusing lifting device control box; 10. focusing device electric cabinet; 11. a cylinder welding magnetic attraction platform; 12. a magnetic switch control box; 13. a cylinder welding lifting table; 14. a lifting platform control box; 15. a laser head; 16. a laser display; 17. a laser; 18. a water cooling device; 19. folding the flat plate; 20. an optical fiber; 21. a rubber roller; 22. a guide rail lock catch; 23. a fine tuning device; 23-1, a mounting block B;23-2, a screw rod B;23-3, a sliding block B;23-3-1, bumps; 24. film winding roller.

Detailed Description

The utility model is further illustrated by the following examples, which are not intended to be limiting.

As shown in fig. 1-7; a laser welding platform shared by a flat plate and a cylinder comprises a frame 1; the frame 1 is divided into a flat welding platform and a cylindrical welding platform, welding work among all flat plates is carried out in the flat welding platform, and the welded flat plate rolling head and tail welding work is carried out in the cylindrical welding platform.

A conveying device is arranged in the frame 1, a flat welding magnetic attraction platform 2 is arranged at the head part of the conveying device, a cylinder welding magnetic attraction platform 11 is arranged at the tail part of the conveying device, and the conveying device is used for conveying flat plates; the conveying device comprises a plurality of rubber rollers 21, a flat welding magnetic attraction platform 2 is arranged on one side of the conveying device, and a cylinder welding magnetic attraction platform 11 is arranged between two rubber rollers at the tail part of the conveying device; the cylinder welding magnetic attraction platform 11 is about 10cm lower than the flat plate welding magnetic attraction platform 2, so that the welded flat plate can be moved into the cylinder welding platform more conveniently, and the phenomenon that the edges of the magnetic attraction platform collide with the front surface of the flat plate to damage the flat plate is avoided;

the flat welding magnetic attraction platform 2 and the cylindrical welding magnetic attraction platform 11 are used for adsorbing the flat; the flat welding magnetic attraction platform 2 can adsorb the flat when being opened through the matching of a magnetic attraction plate or a magnet, so that the flat can not move, and can also play a role in leveling, and the flat can be smoothly moved when being closed; the cylinder welding magnetic attraction platform 11 is opened for adsorption and leveling, and the cylinder can be taken out after being closed; the frame 1 is internally provided with a magnetic attraction switch control box 12 for controlling the opening and closing of the flat welding magnetic attraction platform 2 and the cylindrical welding magnetic attraction platform 11 and the magnitude of the attraction force. The technical scheme is that a magnetic attraction device is adopted between a flat welding magnetic attraction platform and a cylindrical welding magnetic attraction platform, materials to be welded are fixed on the platform by utilizing the magnetic force of a powerful magnet, and a person skilled in the art can perform routine selection according to the needs without excessive limitation.

The top of the frame 1 is provided with a laser head moving device 3 in a sliding manner, one side of the laser head moving device 3 is provided with a focal length focusing and lifting device 8 in a sliding manner, one side of the focal length focusing and lifting device 8 is provided with a laser head 15, the laser head 15 is driven to move up and down, the laser head 15 determines the focal point and the focal length, the quality of the laser head determines the quality of light spots, and lenses are arranged on the laser head and need to be cleaned or replaced regularly; the laser head 15, the laser display 16 and the laser 17 are electrically connected; the laser is used for adjusting parameters, power, time, frequency and waveform of the welding system, and the selection of the laser is controllable; the laser display 16 is arranged on one side of the frame 1, the focal position and the size of a checking light spot can be accurately determined through the laser display 16, and whether the welding spot position is deviated or not can be checked in the welding process; the laser 17 is electrically connected with the water cooling device 18, the water cooling device plays a role in cooling the laser, when the laser works, the laser needs to be started simultaneously, a large amount of heat can be generated when the laser works, the water which is subjected to water circulation treatment is required to cool down, and the laser is prevented from being overheated to stop working; the laser 17 is connected to the laser head 15 by an optical fiber 20.

The top of the frame 1 is provided with a laser head moving guide rail 4, and the bottom of the laser head moving device 3 is in sliding connection with the frame 1 through the laser head moving guide rail 4, so that the laser head moving device 3 drives the laser head 15 to move along the conveying direction of the flat plate, namely along the X direction; the frame 1 is provided with a laser head moving guide rail speed control box 5 for controlling the travelling speed of the laser head moving device 3 and changing one of factors of the plate superposition rate;

one side of the laser head moving device 3 is provided with a laser head translation guide rail 6, a laser head 15 can move on the laser head translation guide rail 6, namely move along the Y direction, and a mounting block A8-1 of the focal length focusing lifting device 8 is in sliding connection with the laser head moving device 3 through the laser head translation guide rail 6; the frame 1 is provided with a laser head translation control box 7 for controlling the laser head translation guide rail 6 to translate in the flat plate transmission direction, moving the laser head, determining a starting point and an ending point, and switching on and off a light source.

The focal length focusing lifting device 8 comprises a mounting block A8-1, a motor 8-2, a screw rod A8-3, a sliding block A8-4 and a focusing lifting device control box 9, wherein the mounting block A8-1 is connected with the laser head moving device 3 in a sliding manner, the output end of the motor 8-2 is connected with the screw rod A8-3, the screw rod A8-3 is rotatably arranged in the mounting block A8-1, bearings are arranged at the upper end and the lower end in the mounting block A8-1, and the two ends of the screw rod A8-3 are rotatably connected with the mounting block A8-1 through the bearings; the sliding block A8-4 is sleeved on the outer wall of the screw rod A8-3, and one side of the sliding block A8-4, which is far away from the laser head moving device 3, is connected with the laser head 15; the focusing lifting device control box 9 is arranged on the frame 1 and is used for controlling the motor 8-2 to rotate positively and negatively to drive the screw rod A8-3 to rotate positively and negatively to enable the slide block A8-4 to ascend or descend, so that the laser head 15 is lifted and lowered, namely the movement of the laser head 15 along the Z direction is realized, the focal length is lifted and lowered, the focusing effect is achieved, and the perfect light emitting is achieved; the electric cabinet 10 of the focusing device is arranged in the frame 1, the power supply of the focusing distance focusing lifting device 8 is controlled, and meanwhile, the lifting speed of the focusing distance lifting device 8 and the automatic focusing distance can be set.

The two sides of the frame 1 are respectively provided with a fine tuning device 23, and the flat welding platform and the cylindrical welding platform are respectively provided with a fine tuning device 23; the fine adjustment device 23 comprises a mounting block B23-1, a screw rod B23-2 and a sliding block B23-3, wherein one side of the mounting block B23-1 is arranged on the side of the frame 1; the screw rod B23-2 is rotatably arranged in the mounting block B23-1, bearings are arranged at two ends in the mounting block B23-1, and two ends of the screw rod B23-2 are rotatably arranged in the mounting block B23-1 through the bearings; the sliding block B23-3 is sleeved on the outer wall of the screw rod B23-1, and one side of the sliding block B23-3 is provided with a convex block 23-3-1; the other side of the mounting block B23-1 is provided with a lock hole, and the side of the laser head moving device 3 is provided with a guide rail lock catch 22 matched with the lock hole. The screw rod 23-2 is manually screwed, the screw rod B23-2 rotates to drive the sliding block B23-3 to move in the mounting block B23-1, so that the protruding block 23-3-1 moves, when the laser head moving device 3 is positioned at the flat welding platform, the laser head moving device 3 cannot move due to the locking of the guide rail lock catch 22 and the lock hole, the deviation in the welding process is avoided, and if the position of a welding spot needs to be finely adjusted, the protruding block 23-3-1 can be driven to move to push the laser head moving device 3 through rotating the screw rod B23-2, so that fine adjustment is realized.

A cylinder welding lifting table 13 is arranged below the cylinder welding magnetic attraction platform 11, and the cylinder welding lifting table 13 is used for splicing the welded flat plates end to end into a cylinder shape;

the cylinder welding lifting platform 13 comprises N supporting devices and lifting platform control boxes 14 which are symmetrically arranged, wherein N is more than or equal to 3, N=9 in the embodiment, the cylinder welding lifting platform 13 is electrically connected with the lifting platform control boxes 14, and the lifting platform control boxes 14 are used for controlling the cylinder welding lifting platform 13 to ascend or descend; the supporting device comprises supporting rods on two sides and a cylinder positioned between the supporting rods on two sides; the N supporting devices are sequentially arranged in an arc shape. The cylinder welding lifting table 13 ascends, so that upward pressure can be realized, and a flat plate on the cylinder welding magnetic attraction platform is more flattened; descending to make the cylinder return to natural state after the head and tail of the rolled circle are welded.

A folding flat plate 19 is arranged on one side of the frame 1, which is close to the flat plate welding magnetic attraction platform 2, and the folding flat plate 19 is hinged with the frame 1. When the size of the panel to be welded is large, the folding panel 19 can be lifted to place the panel to be welded.

One side of the flat welding magnetic attraction platform 2 is provided with a film winding roller 24. The film roll 24 is wound with a film for protecting the surface of the flat plate, thereby protecting the flat plate.

In another embodiment, the difference is that the cylinder welding lifting platform comprises N lifting devices and a lifting platform control box, wherein N is more than or equal to 9; the N lifting devices are electrically connected with a lifting platform control box, and the lifting platform control box is used for controlling the lifting devices to ascend or descend; the lifting device comprises lifting rods at two sides and a cylinder positioned between the lifting rods at two sides; the N lifting devices are sequentially arranged in an arc shape; the lifting platform control box can independently control the lifting device, and can control the lifting device to ascend or descend according to the splicing process and the welding process, so that the head-to-tail splicing close fitting of the integral platform is better realized, the welding seam is as small as possible, and the problem that the welding seam is too large in the existing welding process is solved.

A method of using a laser welding platform common to a plate and a cylinder, the method comprising:

step S1: white paper special for welding with proper size is respectively laid on the flat welding magnetic attraction platform 2 and the cylinder welding magnetic attraction platform 11, the periphery is sealed by using adhesive tape, and the white paper is laid on the one hand, so that the pollution and damage of the flat can be prevented; on the other hand, the laser welding effect of the flat welding seam can be observed, and if a serious mark is left on white paper, the welding seam is poor in welding effect; wiping the whole welding area by using dust-free cloth, and keeping the welding platform clean without dust or other impurity pollutants; turning on the power supply of the whole platform, and calibrating the welding device; measuring the thickness of a flat plate to be welded, and setting welding parameters in a laser 17; firstly, pulling the film on the film winding roller 24 to a length of 0.8m-1m and spreading the film on the rubber roller 21;

step S2: placing the first flat plate on a platform with the front surface facing downwards and the back surface facing upwards; note that the front cannot be placed where there is no white paper or no film, preventing front damage; the left edge of the first flat plate is positioned in the middle of the flat plate welding magnetic attraction platform 2, the deviation is as small as possible, and the film is attached to the lower surface of the right side of the first flat plate, so that the film and the first flat plate can translate synchronously;

step S3: starting a laser head translation control box 7 to control a laser head translation guide rail 6, translating a laser head 15 to one end of a welding line of a first flat plate, observing whether a focus is on the edge of the first flat plate through a laser display 16, manually adjusting the first flat plate to a proper position, translating the laser head 15 to the other end of the first flat plate, adjusting the edge position of the first flat plate again, and operating for multiple times until a focus movement track coincides with the edge of the first flat plate;

step S4: opening the magnetic attraction switch control box 12, fixing the first flat plate on the flat plate welding magnetic attraction platform by using a magnetic attraction plate or a magnet, and closing the magnetic attraction switch control box 12;

step S5: the folding flat plate 19 is lifted, a layer of film is paved, and the second flat plate is placed on the platform with the front face facing downwards and the back face facing upwards; slowly translating the second flat plate to be close to the edge of the first flat plate until the edge of the second flat plate is tightly attached to the edge of the second flat plate;

step S6: opening the magnetic switch control box 12 again, and fixing a second flat plate by using the flat plate welding magnetic platform 2;

step S7: starting a laser head translation control box 7 to control a laser head translation guide rail 6, moving a laser head 15, wherein the left end of a welding line is a starting end, the right end of the welding line is a stopping end, and performing welding work after the focus and the focal length are regulated again;

step S8: after the welding is finished, closing the magnetic switch control box 12, and translating the welded first flat plate and second flat plate to enable the left edge of the second flat plate to be positioned in the middle of the flat plate welding magnetic platform 2;

step S9: the subsequent operations repeat steps S5-S8; and finishing welding the second flat plate and the third flat plate by analogy, and welding the penultimate flat plate and the last flat plate until the flat plate welding operation is finished;

step S10: moving the welded whole flat plate into a cylinder welding magnetic attraction platform 11; the first flat plate enters the cylinder welding lifting table 13 along with the movement of the conveying device, the edge of the last flat plate is positioned in the middle of the cylinder welding magnetic attraction table 11, and the welded whole flat plate passes through the cylinder welding lifting table to form a cylinder shape;

step S11: opening a guide rail lock catch 22, opening a laser head moving guide rail speed control box 7 to control the laser head moving guide rail 4 to move, enabling the laser head moving device 3 to move the laser head 15 to be above the cylinder welding magnetic attraction platform 11, and then locking the guide rail lock catch and a lock hole; the focal length is adjusted through the laser display 16, the edge of the last flat plate is adjusted to coincide with the focal track, the magnetic attraction switch control box 12 is opened, the cylindrical welding magnetic attraction platform 11 is used for fixing the last flat plate, and then the magnetic attraction switch control box 12 is closed; in the welding process, if the laser head and the welding line have slight deviation, a fine adjustment device 23 can be used, and the screw rod B23-2 is rotated to drive the lug 23-3-1 to move to drive the laser head moving device 3 to push the laser head, so that the focus of the laser head is aligned with the welding line, and fine adjustment is realized;

step S12: starting a lifting table control box 14, and controlling the cylinder welding lifting table 13 to slowly lift so that the edge of the first flat plate is slowly close to the edge of the last flat plate until the first flat plate is tightly attached;

step S13: opening the magnetic switch control box 12 again, and fixing the first flat plate by using the cylinder welding magnetic platform 11;

step S14: starting a laser head translation control box 7 to control a laser head translation guide rail 6, moving a laser head 15, adjusting the focus and the focal length again, and performing welding work after the adjustment;

step S15: after the welding is finished, closing the magnetic switch control box 12; the cylinder welding lifter 13 is lowered to the lowest and then the welded cylinder is slowly taken out.

Selecting welding parameters:

1. firstly, the thickness and the hardness of a welding plate are required to be measured, wherein the thickness is the primary condition, and the hardness is the secondary condition; the types of the welding plates are different, so that the hardness of the plates is also different, and the welding is finished by adjusting parameters through experiments;

2. taking nickel plates as an example, parameters used for welding 0.5mm nickel plates are: pulse power 500W, pulse time 1ms, pulse frequency 7, rectangular wave is selected by waveform; the parameters used for welding the 0.6mm nickel plate are: pulse power 500W, pulse time 1.3ms, pulse frequency 7, rectangular wave is selected by waveform; the parameters used for welding the 0.7mm nickel plate are: pulse power 500W, pulse time 1.5ms, pulse frequency 7, rectangular wave is selected by waveform; the selection of the frequency is limited by the translation speed of the platform, and the frequency needs to be correspondingly increased when the translation speed is increased;

3. pulse power affects the size of the whole welding spot, pulse time affects the depth of penetration, and pulse frequency affects the coincidence rate of the spot;

4. the spot size is preferably 0.2mm in diameter, the penetration depth is preferably 35% to 45% of the thickness of the plate, and the coincidence rate of the spots is preferably 60%.

The foregoing has shown and described the basic features and advantages of the utility model. However, the foregoing is merely exemplary embodiments of the present utility model, and the technical features of the present utility model are not limited thereto, and any other embodiments that are obtained by those skilled in the art without departing from the technical solution of the present utility model are included in the scope of the present utility model.

Claims (9)

1. The utility model provides a laser welding platform that dull and stereotyped and drum shared, its characterized in that includes frame (1), laser instrument (17), laser display (16), magnetism inhale switch control box (12), be equipped with conveyer in frame (1), conveyer's head is equipped with dull and stereotyped welding magnetism and inhale platform (2), and conveyer's afterbody is equipped with drum welding magnetism and inhale platform (11), conveyer is used for transmitting the dull and stereotyped; the flat welding magnetic attraction platforms (2) and the cylindrical welding magnetic attraction platforms (11) are all used for adsorbing the flat; the magnetic switch control box (12) is arranged on the frame (1) and is used for controlling the opening and closing of the flat welding magnetic attraction platform (2) and the cylindrical welding magnetic attraction platform (11) and the magnitude of the adsorption force; a cylinder welding lifting table (13) is arranged below the cylinder welding magnetic attraction platform (11), and the cylinder welding lifting table (13) is used for splicing the welded flat plates end to form a cylinder; the top of the frame (1) is provided with a laser head moving device (3) in a sliding manner, the laser head moving device (3) is perpendicular to the conveying direction of the flat plate, one side of the laser head moving device (3) is provided with a focal length focusing lifting device (8) in a sliding manner, and the focal length focusing lifting device (8) drives the laser head (15) to move up and down; the laser head (15), the laser display (16) and the laser (17) are electrically connected.

2. The laser welding platform shared by the flat plate and the cylinder according to claim 1, wherein the cylinder welding lifting platform (13) comprises N supporting devices and a lifting platform control box (14), and N is more than or equal to 3; the cylinder welding lifting table (13) is electrically connected with a lifting table control box (14), and the lifting table control box (14) is used for controlling the cylinder welding lifting table (13) to ascend or descend; the supporting device comprises supporting rods on two sides and a cylinder positioned between the supporting rods on two sides; the N supporting devices are sequentially arranged in an arc shape.

3. The laser welding platform shared by the flat plate and the cylinder according to claim 1, wherein a laser head moving guide rail (4) is arranged at the top of the frame (1), and the bottom of the laser head moving device (3) is in sliding connection with the frame (1) through the laser head moving guide rail (4); the laser head moving guide rail speed control box (5) is arranged in the frame (1) and used for controlling the advancing speed of the laser head moving device (3).

4. The laser welding platform shared by the flat plate and the cylinder according to claim 1, wherein the focal length focusing lifting device (8) comprises a mounting block A (8-1), a motor (8-2), a screw rod A (8-3), a sliding block A (8-4) and a focusing lifting device control box (9), the mounting block A (8-1) is connected with the laser head moving device (3) in a sliding mode, the output end of the motor (8-2) is connected with the screw rod A (8-3), the screw rod A (8-3) is rotatably arranged in the mounting block A (8-1), the sliding block A (8-4) is sleeved on the outer wall of the screw rod A (8-3), and one side, far away from the laser head moving device (3), of the sliding block A (8-4) is connected with the laser head (15); the control box (9) of the focusing lifting device is arranged on the frame (1) and used for controlling the motor (8-2) to rotate positively and negatively to drive the screw rod A (8-3) to rotate positively and negatively so as to enable the sliding block A (8-4) to ascend or descend.

5. The laser welding platform shared by the flat plate and the cylinder according to claim 1, wherein fine adjustment devices (23) are respectively arranged on two sides of the frame (1), each fine adjustment device (23) comprises a mounting block B (23-1), a screw rod B (23-2) and a sliding block B (23-3), and one side of each mounting block B (23-1) is arranged on the side edge of the frame (1); the screw rod B (23-2) is rotatably arranged in the mounting block B (23-1); the sliding block B (23-3) is sleeved on the outer wall of the screw rod B (23-2), and a lug (23-3-1) is arranged on one side of the sliding block B (23-3); the other side of the mounting block B (23-1) is provided with a lock hole, and the side of the laser head moving device (3) is provided with a guide rail lock catch (22) matched with the lock hole.

6. The laser welding platform shared by the flat plate and the cylinder according to claim 1, wherein a folding flat plate (19) is arranged on one side of the frame (1) close to the flat plate welding magnetic attraction platform (2), and the folding flat plate (19) is hinged with the frame (1).

7. The laser welding platform shared by the flat plate and the cylinder according to claim 1, wherein the conveying device comprises a plurality of rubber rollers (21), the cylinder welding magnetic attraction platform (11) is arranged on one side of the conveying device, and the cylinder welding magnetic attraction platform (11) is arranged between two rubber rollers at the tail part of the transmission device; the cylinder welding magnetic attraction platform (11) is lower than the flat welding magnetic attraction platform (2).

8. The laser welding platform shared by the flat plate and the cylinder according to claim 1, wherein one side of the flat plate welding magnetic attraction platform (2) is provided with a film winding roller (24).

9. A laser welding platform common to both flat and cylindrical plates according to claim 1, characterized in that said laser (17) is electrically connected to a water cooling device (18); the laser (17) is connected with the laser head (15) through an optical fiber (20); one side of the laser head moving device (3) is provided with a laser head translation guide rail (6), and the focal length focusing lifting device (8) is in sliding connection with the laser head moving device (3) through the laser head translation guide rail (6); the laser head translation control box (7) is arranged in the frame (1) and used for controlling the laser head translation guide rail (6) to translate in the welding line direction.