Compressing, blowing and sucking tool for laser welding and laser welding device

Abstract

The utility model relates to a pressing, blowing and sucking tool for laser welding and a laser welding device. The pressing, blowing and sucking tool comprises a bearing part and a pressing and connecting structure, and the pressing and connecting structure is arranged on the bearing part and provided with an air blowing opening, a dust sucking opening and a laser penetrating hole; the crimping structure comprises two elastic pressing heads, the two elastic pressing heads are arranged on the two sides of the laser penetrating hole in the first direction and used for abutting against a to-be-welded welding piece, and the air blowing opening and the dust suction opening are formed in the two sides of the laser penetrating hole in the second direction intersecting with the first direction; a first channel and a second channel are arranged in the bearing piece, a first connector and a second connector are arranged on the bearing piece, the first connector is communicated with the air blowing opening through the first channel, and the second connector is communicated with the dust suction opening through the second channel. The air blowing port and the dust suction port are integrated in the crimping structure, so that shielding gas can be blown to the surface of a welding part through the air blowing port while the welding part is compressed, dust is sucked through the dust suction port, and the stability of weld penetration and the welding quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding tooling, and in particular to a pressing, blowing and suction tooling for laser welding and a laser welding device. Background Art

[0002] In the production process of precision parts, it is usually necessary to connect two welded parts, such as copper materials. Laser welding is a method of welding that uses a focused laser beam as energy to generate heat to bombard the welded parts. It is widely used in the welding of copper materials because of its advantages such as high power density, fast welding, and small thermal impact.

[0003] In the related art, laser welding equipment is usually used to perform laser welding on copper materials. The laser welding equipment usually includes a clamping tool, a mobile servo module and a laser system, wherein the laser system includes a laser, a water cooler and a controller. The copper material to be welded is clamped by the clamping tool, and then the controller drives the mobile servo module to work, and the mobile servo module drives the laser to move to the welding position, and the laser emits laser for laser welding, thereby welding the two copper materials together. However, the function of the clamping tool is relatively single, resulting in poor welding effect and inconvenience in use. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides a compression, blowing and suction tooling for laser welding and a laser welding device.

[0005] In a first aspect, the present disclosure provides a compression blowing and suction tooling for laser welding, including a bearing member and a crimping structure;

[0006] The crimping structure is arranged on the bearing member, and the crimping structure has an air blowing port, a dust suction port and a laser perforated hole;

[0007] The crimping structure includes two elastic pressing heads, which are arranged on both sides of the laser perforated hole in a first direction and are used to abut against the welded parts to be welded, and the air blowing port and the dust suction port are arranged on both sides of the laser perforated hole in a second direction, and the first direction intersects with the second direction;

[0008] The carrier has a first channel and a second channel therein, and is provided with a first connector for connecting to a protective gas source and a second connector for connecting to a dust collector. The first connector is connected to the air blowing port through the first channel, and the second connector is connected to the dust suction port through the second channel.

[0009] Optionally, the crimping structure includes a crimping seat fixed on the bearing member;

[0010] The crimping seat is provided with three through holes along the second direction, the through hole in the middle is formed as the laser-perforated hole, and the ends of the through holes on both sides facing away from the carrier respectively form the blowing port and the dust suction port.

[0011] Optionally, in the direction from the carrier to the crimping seat, the central axes of the air blowing port and the dust suction port are both inclined toward the direction close to the central axis of the laser-perforated hole, and the air blowing port and the dust suction port are arranged relative to each other.

[0012] Optionally, the elastic pressing head includes a crimping member and an elastic member;

[0013] The crimping seat is provided with a mounting groove for the crimping part and the elastic part to pass through, the mounting groove is located on one side of the laser-perforated hole in the first direction, the elastic part is arranged on the side of the mounting groove facing the supporting part, the crimping part is movably passed through the side of the mounting groove away from the supporting part and exposed on the outside of the crimping seat, and the elastic part is fixedly connected to the crimping part.

[0014] Optionally, at least one of the elastic pressing heads includes at least two elastic members, and at least two of the elastic members are spaced apart along the second direction.

[0015] Optionally, a surface of the elastic pressing head away from the supporting member includes a first sub-surface arranged along the first direction and a second sub-surface arranged along the second direction, and the first sub-surface and the second sub-surface are coplanar.

[0016] Optionally, at least part of the first channel and at least part of the second channel are arranged in parallel along the first direction.

[0017] Optionally, there are at least two crimping structures, at least two of which are connected in sequence along the first direction, the air blowing ports of all the crimping structures are connected to the first channel, and the dust suction ports of all the crimping structures are connected to the second channel;

[0018] And / or, the crimping structures are in at least two rows, and the at least two rows of crimping structures are spaced apart along the second direction. There are at least two first channels and at least two first joints, respectively, and one row of the crimping structures corresponds to one first channel and one first joint.

[0019] Optionally, the size of the two elastic pressing heads in the first direction is not greater than 13 mm.

[0020] In a second aspect, the present disclosure provides a laser welding device, comprising the above-mentioned pressing, blowing and suction tooling for laser welding.

[0021] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0022] The present disclosure provides a compression blowing and suction tool and a laser welding device for laser welding, which are provided by setting a carrier and setting a crimping structure on the carrier, wherein the crimping structure has an air blowing port, a dust suction port and a laser perforation hole for the laser beam to pass through. The crimping structure includes two elastic pressure heads, which are arranged on both sides of the laser perforation hole in the first direction and are used to abut against the welded piece to be welded, and the air blowing port and the dust suction port are arranged on both sides of the laser perforation hole in the second direction, and the first direction and the second direction intersect. The carrier has a first channel and a second channel, that is, the first channel and the second channel are integrated inside the carrier, and the carrier is provided with a first joint for communicating with a protective gas source and a second joint for communicating with a dust collector, the first joint is connected to the air blowing port through the first channel, and the second joint is connected to the dust suction port through the second channel. During welding, the two elastic pressure heads are pressed against the welded piece to be welded, and the two elastic pressure heads are pressed against the two ends of the weld along the length direction of the weld respectively, so as to press the welded piece, and at this time, the air blowing port and the dust suction port are located on both sides of the weld. Turn on the laser beam for laser welding, and turn on the shielding gas source and the dust collector at the same time. In this way, during laser welding, the shielding gas in the shielding gas source can be blown from the blowing port to the surface of the weldment, and the dust on the surface of the weldment and the spatter particles generated during the welding process can be sucked into the dust collector through the dust suction port. That is to say, the compression blowing and suction tool for laser welding disclosed in the present invention is integrated with the blowing port and the dust suction port on the crimping structure. In this way, while the weldment is compressed, shielding gas can be blown to the surface of the weldment through the blowing port, which reduces the degree of contact between the weld and the air during laser welding, improves the stability of the weld penetration and the welding quality, and the dust on the surface of the weldment and the spatter particles generated during the welding process can be sucked away and removed through the dust suction port, avoiding the phenomenon that dust and spatter particles remain and affect the welding quality. The welding quality is good, the functions are relatively rich, and it is easy to use, which improves the welding quality and welding effect. In addition, the present invention opens a first channel and a second channel inside the carrier, which makes blowing and dust suction more stable compared with the solution of binding the pipeline to the carrier in the prior art, thereby making laser welding more stable and comfortable, and the welding quality is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is an isometric view of the compression, blowing and suction tooling for laser welding according to an embodiment of the present disclosure;

[0026] Figure 2 Another isometric view of the compression, blowing and suction tooling for laser welding according to the embodiment of the present disclosure;

[0027] Figure 3 It is an isometric view of the first viewing angle of the crimping structure of the compression, blowing and suction tooling for laser welding according to an embodiment of the present disclosure;

[0028] Figure 4 It is an isometric view of the crimping structure of the compression, blowing and suction tooling for laser welding according to an embodiment of the present disclosure from a second viewing angle;

[0029] Figure 5 for Figure 4 A partial enlarged view of the middle A part;

[0030] Figure 6 It is a structural schematic diagram of a crimping seat of a crimping structure of a compression blowing and suction tooling for laser welding according to an embodiment of the present disclosure;

[0031] Figure 7 This is an isometric view of a laser welding device according to another embodiment of the present disclosure.

[0032] Among them, 10, pressing and blowing tooling; 1, bearing member; 11, avoidance port; 2, crimping structure; 21, crimping seat; 22, through hole; 23, mounting groove; 3, laser drilling hole; 4, air blowing port; 5, dust suction port; 6, elastic pressure head; 61, crimping part; 62, elastic part; 71, first channel; 72, second channel; 81, first joint; 82, second joint; 91, first sub-surface; 92, second sub-surface; 20, rack; 30, tray; 40, lifting mechanism; 50, dust collector; 60, wire body; 70, water cooling structure; 80, controller; 90, laser transmitter. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0035] refer to Figures 1 to 7 As shown, this embodiment provides a pressing, blowing and suction tool 10 for laser welding (hereinafter referred to as the pressing, blowing and suction tool 10 ), and the pressing, blowing and suction tool 10 includes a carrier 1 and a crimping structure 2 .

[0036] Specifically, refer to Figure 1 and Figure 2 As shown, the crimping structure 2 is arranged on the carrier 1, and the crimping structure 2 has an air blowing port 4, a dust suction port 5 and a laser perforation hole 3 for the laser beam to pass through.

[0037] In some implementations, the laser beam emission port may be located above the carrier 1, and the welded parts to be welded are located below the carrier 1. The crimping structure 2 may be provided on the bottom surface of the carrier 1, and the crimping structure 2 has a laser perforation hole 3 opened along the thickness direction of the carrier 1, wherein both ends of the laser perforation hole 3 are open for the laser beam to pass through.

[0038] For specific implementation, refer to Figure 2 As shown, a clearance opening 11 is provided at the position of the carrier 1 corresponding to the laser perforation hole 3, and the clearance opening 11 is connected to the laser perforation hole 3. During laser welding, the laser beam passes through the clearance opening 11 and the laser perforation hole 3, thereby performing laser welding at a preset position of the weldment.

[0039] refer to Figures 3 to 6 As shown, the crimping structure 2 includes two elastic pressing heads 6. The two elastic pressing heads 6 are arranged on the laser perforated hole 3 in the first direction (reference Figure 1 , Figure 3 and Figure 5 The air blowing port 4 and the dust suction port 5 are respectively arranged on both sides of the laser perforated hole 3 in the second direction (reference Figure 1 , Figure 3 and Figure 5 On both sides of the Y direction in the figure, the first direction intersects the second direction, for example, the first direction may be perpendicular to the second direction.

[0040] In a specific implementation, the size of the laser-perforated hole 3 in the first direction is greater than the size of the laser-perforated hole 3 in the second direction, and the first direction is perpendicular to the second direction. The length direction of the preset weld formed on the welded part is consistent with the first direction, and the width direction of the preset weld formed on the welded part is consistent with the second direction.

[0041] During specific use, two elastic pressure heads 6 are arranged at two ends of the preset weld along the length direction thereof, and the air blowing port 4 and the dust suction port 5 are arranged at two sides of the preset weld along the width direction thereof.

[0042] Specifically, refer to Figure 1 As shown, the carrier 1 has a first channel 71 and a second channel 72, that is, the carrier 1 is integrated with the first channel 71 and the second channel 72. The carrier 1 is provided with a first connector 81 for communicating with a protective gas source and a second connector 82 for communicating with a dust collector 50. The first connector 81 is connected to the air blowing port 4 through the first channel 71, and the second connector 82 is connected to the dust suction port 5 through the second channel 72.

[0043] That is to say, one end of the first channel 71 is connected to the first joint 81, and the other end of the first channel 71 is connected to the blowing port 4. Since the first joint 81 is also connected to the shielding gas source, the shielding gas in the shielding gas source, such as nitrogen, is blown toward the surface of the weldment through the first joint 81, the first channel 71, the crimping structure 2, and the blowing port 4 in sequence. This arrangement enables the compression and blowing tool 10 of this embodiment to integrate the function of blowing shielding gas, thereby enriching the function. In this way, while the weldment is compressed, the shielding gas can also be blown toward the surface of the weldment. Therefore, during the laser welding process, the degree of contact between the gas and air near the weld pool formed on the weldment is reduced, which to a certain extent avoids the phenomenon that the weld pool induces the gas in its surrounding areas to produce ionization, thereby improving the stability of the weld pool and thus improving the welding quality to a certain extent.

[0044] In addition, one end of the second channel 72 is connected to the second joint 82, and the other end of the second channel 72 is connected to the dust suction port 5. Since the second joint 82 is also connected to the dust collector, the dust on the surface of the weld and the spatter particles generated during the welding process can be sucked away by the dust collector through the dust suction port 5, the crimping structure 2, the second channel 72, and the second joint 82. This arrangement enables the pressing, blowing and suction tool 10 of this embodiment to integrate the dust suction function, enriching the function. In this way, while pressing and blowing the protective gas on the weld, the dust on the surface of the weld and the spatter particles and dust generated during the welding process can also be sucked away and eliminated through the dust suction port 5, which to a certain extent reduces the occurrence of dust, spatter particles, dust, etc. remaining in the weld and inside the weld to affect the electrical and thermal performance, further improves the welding quality, and at the same time improves the electrical and thermal conductivity of the weld to a certain extent.

[0045] In some implementations, the first joint 81 and the second joint 82 can be arranged on the top surface of the carrier 1, for example, to avoid interference with the welding parts, which is convenient to use.

[0046] The carrier 1 may be, for example, a carrier plate.

[0047] The compression blowing and suction tool 10 and the laser welding device provided in this embodiment are provided by providing a carrier 1, and providing a crimping structure 2 on the carrier 1, wherein the crimping structure 2 has an air blowing port 4, a dust suction port 5 and a laser perforation hole 3 for the laser beam to pass through. The crimping structure 2 includes two elastic pressing heads 6, which are respectively arranged on both sides of the laser perforation hole 3 in the first direction and are used to abut against the welded parts to be welded, and the air blowing port 4 and the dust suction port 5 are respectively arranged on both sides of the laser perforation hole 3 in the second direction, and the first direction and the second direction intersect. The carrier 1 has a first channel 71 and a second channel 72, that is, the first channel 71 and the second channel 72 are integrated inside the carrier 1, and the carrier 1 is provided with a first joint 81 for communicating with a protective gas source and a second joint 82 for communicating with a dust collector 50, the first joint 81 is connected to the air blowing port 4 through the first channel 71, and the second joint 82 is connected to the dust suction port 5 through the second channel 72. During welding, two elastic pressing heads 6 are pressed against the welded parts to be welded. The two elastic pressing heads 6 are pressed against the two ends of the weld along the length direction of the weld to press the welded parts tightly. At this time, the air inlet 4 and the dust suction port 5 are located on both sides of the weld. Turn on the laser beam for laser welding, and turn on the shielding gas source and the dust collector 50 at the same time. In this way, during laser welding, the shielding gas in the shielding gas source can be blown from the blowing port 4 to the surface of the weldment, and the dust on the surface of the weldment and the spatter particles generated during the welding process can be sucked into the dust collector 50 through the dust suction port 5. That is to say, the compression blowing and suction tool 10 for laser welding of this embodiment is integrated with the blowing port 4 and the dust suction port 5 on the crimping structure 2. In this way, while the weldment is compressed, the shielding gas can be blown to the surface of the weldment through the blowing port 4, which reduces the degree of contact between the weld and the air during laser welding, improves the stability of the weld penetration and the welding quality, and the dust on the surface of the weldment and the spatter particles generated during the welding process can be sucked away and removed through the dust suction port 5, avoiding the phenomenon that dust and spatter particles remain and affect the welding quality. The welding quality is good, the functions are relatively rich, and it is easy to use, which improves the welding quality and welding effect. In addition, in this embodiment, the first channel 71 and the second channel 72 are opened inside the carrier 1. Compared with the solution of binding the pipeline to the carrier 1 in the prior art, the blowing and dust suction are more stable, thereby making the laser welding more stable and comfortable, and the welding quality is better.

[0048] In some embodiments, reference Figures 2 to 6 As shown, the crimping structure 2 includes a crimping seat 21, which has a simple structure and is easy to manufacture. The crimping seat 21 is fixed on the carrier 1, and three through holes 22 are opened on the crimping seat 21 along the second direction. The through hole 22 located in the middle is formed as a laser-perforated hole 3, and the ends of the through holes 22 located on both sides away from the carrier 1 respectively form a blowing port 4 and a dust suction port 5.

[0049] The crimping seat 21 can be fixed to the bottom surface of the carrier 1 by fasteners such as bolts. Of course, the crimping seat 21 can also be connected to the bottom surface of the carrier 1 by a snap-fit ​​structure, etc., which is convenient for installation and disassembly and replacement.

[0050] refer to Figure 3 and Figure 6 As shown, three through holes 22 are provided on the crimping seat 21, the through hole 22 in the middle is formed as a laser-perforated hole 3, and the through holes 22 on both sides are respectively formed as connecting channels. Specifically, one end of the two connecting channels facing the carrier 1 is connected to the first channel 71, and one end of the two connecting channels facing away from the carrier 1 is formed as a blowing port 4. One end of the other of the two connecting channels facing the carrier 1 is connected to the second channel 72, and one end of the other of the two connecting channels facing away from the carrier 1 is formed as a dust suction port 5.

[0051] For example, reference Figure 6 As shown, the top end of the connection channel formed by the through hole 22 located at the rear side is communicated with the first channel 71, and the bottom end of the connection channel formed by the through hole 22 located at the rear side is formed as an air blowing port 4. The top end of the connection channel formed by the through hole 22 located at the front side is communicated with the second channel 72, and the bottom end of the connection channel formed by the through hole 22 located at the front side is formed as a dust suction port 5. The air blowing port 4 and the dust suction port 5 are arranged on both sides of the laser perforated hole 3 along the second direction, and the structure is simple and easy to manufacture.

[0052] In some embodiments, reference Figures 4 to 6 As shown, in the direction from the supporting plate to the crimping seat 21, the central axes of the air port 4 and the dust suction port 5 are both inclined toward the direction close to the central axis of the laser perforation hole 3, and the air port 4 and the dust suction port 5 are arranged relatively to each other. This arrangement not only makes the air port 4 and the dust suction port 5 open toward the laser perforation hole 3, but also makes the distance between the air port 4 and the preset weld closer, and makes the distance between the dust suction port 5 and the preset weld closer, thereby further enhancing the protective effect of the shielding gas on the surface of the welded part, and the degree of cleaning of dust and flying particles, thereby further improving the stability of the weld penetration and the welding quality, so as to achieve better welding effect.

[0053] In some embodiments, reference Figures 3 to 5 As shown, the elastic pressing head 6 includes a crimping member 61 and an elastic member 62. The crimping seat 21 is provided with a mounting groove 23 for the crimping member 61 and the elastic member 62 to penetrate, the mounting groove 23 is located on one side of the laser perforated hole 3 in the first direction, the elastic member 62 is arranged on the side of the mounting groove 23 facing the carrier 1, the crimping member 61 is movably penetrated on the side of the mounting groove 23 away from the carrier 1 and exposed on the outside of the crimping seat 21, and the elastic member 62 is fixedly connected to the crimping member 61.

[0054] That is to say, the elastic member 62 and the crimping member 61 are both inserted into the mounting groove 23, wherein the elastic member 62 is located on the side of the mounting groove 23 facing the carrier 1, and the crimping member 61 is located on the side of the mounting groove 23 away from the carrier 1, and the end of the elastic member 62 facing the carrier 1 can be fixedly connected to the groove wall of the mounting groove 23, and the end of the elastic member 62 away from the carrier 1 is fixedly connected to the crimping member 61, so that when the crimping member 61 is in contact with the welding part, the crimping member 61 can be expanded and contracted within a certain range along the axial direction of the mounting groove 23, which to a certain extent avoids the phenomenon that the crimping member 61 crushes the welding part, has a certain protective effect on the welding part, and improves the safety of use.

[0055] Specifically, when the crimping piece 61 contacts the welding part, the crimping piece 61 moves toward the surface away from the welding part, squeezes the elastic piece 62, and presses against the welding part under the reaction force of the elastic piece 62, which to a certain extent avoids the occurrence of stress concentration and other damage at the position where the welding part contacts the crimping piece 61, has a certain protective effect on the welding part, and improves the safety of use.

[0056] Among them, the installation groove 23 has a guiding effect on the elastic member 62 and the crimping member 61, making the elastic member 62 and the crimping member 61 expand and contract more smoothly. At the same time, the installation groove 23 has a protective effect on the elastic member 62 and the crimping member 61, which helps to extend the service life of the elastic member 62 and the crimping member 61.

[0057] For specific implementation, refer to Figures 3 to 5 As shown, one end of the crimping member 61 away from the carrier 1 is exposed outside the mounting groove 23, so that the end of the crimping member 61 away from the carrier 1 is exposed outside the crimping seat 21, which is convenient for it to contact with the welding part and press the welding part.

[0058] In some embodiments, at least one elastic pressing head 6 includes at least two elastic members 62, and at least two elastic members 62 are arranged at intervals along the second direction, that is, a plurality of elastic members 62 are arranged between the crimping member 61 of at least one elastic pressing head 6 and the mounting groove 23 in which it is located, and the top end of each elastic member 62 is fixedly connected to the groove wall of the mounting groove 23, and the bottom end of each elastic member 62 is fixedly connected to the crimping member 61, so that on the one hand, the elastic expansion and contraction effect of the crimping member 61 is better. On the other hand, it is convenient to arrange the elastic members 62 according to the available space on both sides of the laser perforated hole 3 in the first direction, as long as the elastic force and compression stroke of the two elastic pressing heads 6 are roughly equal.

[0059] refer to Figure 3As shown, the elastic pressing head 6 located on the left side includes an elastic member 62 (defined as the left elastic member 62), and the elastic pressing head 6 located on the right side includes two elastic members 62 (defined as two right elastic members 62), the two right elastic members 62 are spaced apart along the second direction, the top ends of the two right elastic members 62 are fixedly connected to the mounting groove 23, and the bottom ends of the two right elastic members 62 are fixedly connected to the crimping member 61 located on the left side.

[0060] It should be noted that the pressure exerted on the weld by the two elastic pressure heads 6 is substantially the same. For example, the outer diameter of the left elastic member 62 may be 6 mm, and the spring constant may be 9.8 N / mm, and the outer diameters of the two right elastic members 62 may be 4 mm, and the spring constants may be 4.9 N / mm, respectively.

[0061] In some embodiments, reference Figure 5 As shown, the side of the elastic pressing head 6 away from the supporting member 1 includes a first sub-surface 91 arranged along the first direction and a second sub-surface 92 arranged along the second direction, and the first sub-surface 91 and the second sub-surface 92 are coplanar, so that the first sub-surface 91 and the second sub-surface 92 are roughly L-shaped, that is, the side of the elastic pressing head 6 away from the supporting member 1 is L-shaped. When the structures are the same, the side of the elastic pressing head 6 away from the supporting member 1 has a better and more stable crimping effect on the welded part, which helps to improve the welding quality.

[0062] In some embodiments, reference Figure 1 As shown, at least part of the first channel 71 and at least part of the second channel 72 are arranged in parallel along the first direction, which has better aesthetics and a more reasonable layout, making it easier for the crimping seat 21 to be connected to the first channel 71 and the second channel 72 at the same time, making the structure more compact.

[0063] In some embodiments, reference Figures 1 to 6 As shown, there are at least two crimping structures 2, and at least two crimping structures 2 are connected in sequence along the first direction. The blowing ports 4 of all the crimping structures 2 are connected to the first channel 71, and the suction ports 5 of all the crimping structures 2 are connected to the second channel 72. That is to say, multiple crimping structures 2 can be arranged in the first direction, which helps to improve welding efficiency.

[0064] In some embodiments, reference Figure 1 and Figure 2 As shown, there are at least two rows of crimping structures 2, and at least two rows of crimping structures 2 are spaced apart along the second direction. There are at least two first channels 71 and at least two first joints 81, respectively. One row of crimping structures 2 corresponds to one first channel 71 and one first joint 81, that is, multiple rows of crimping structures 2 can be arranged in the second direction, which helps to improve welding efficiency.

[0065] For example, reference Figure 1 and Figure 2 As shown, there are two rows of crimping structures 2, and the two rows of crimping structures 2 are spaced apart along the second direction. There are two second channels 72 and two first joints 81. Each row of crimping structures 2 is connected to the corresponding first joint 81 through the corresponding second channel 72, and all first joints 81 are connected to the protective gas source. Each row of crimping structures 2 includes a plurality of crimping seats 21 connected in sequence, and each crimping seat 21 is provided with an air blowing port 4, a dust suction port 5 and a laser perforated hole 3, and all the air blowing ports 4 of the crimping structures 2 in each row are connected to the corresponding first channel 71, and all the dust suction ports 5 of the crimping structures 2 in each row are connected to the corresponding second channel 72.

[0066] In some embodiments, the size of the two elastic pressing heads 6 in the first direction is no more than 13 mm, which is convenient for use in small spaces or complex working conditions close to preset welds and has a wide range of applications.

[0067] refer to Figure 7 As shown, this embodiment also provides a laser welding device, including a pressing, blowing and suction tool 10.

[0068] In a specific implementation, the laser welding device includes a frame 20, a tray 30, a lifting mechanism 40, a dust collector 50, a wire body 60, a water cooling structure 70, a controller, and a laser transmitter, wherein reference Figure 7 As shown, the compacting, blowing and suction tooling 10, the tray 30, the lifting mechanism 40, the wire body 60, and the laser transmitter are all arranged on the frame 20, and the dust collector 50 and the controller are respectively arranged on one side of the frame 20.

[0069] The tray 30 is located on the wire body 60. The tray 30 is used to place and carry the parts to be welded. The wire body 60 is used to transfer the tray 30 to the welding work position below the compacting and blowing and suction tooling 10. The lifting mechanism 40 is located below the tray 30 and is used to adjust the height of the tray 30. The controller is used to control the working state of the wire body 60, the laser transmitter, the protective gas source, and the dust collector 50. The water cooling structure 70 is located on one side of the dust collector 50 to dissipate heat therefrom.

[0070] The working process of the laser welding device using this embodiment is as follows:

[0071] Transporting the welded parts carried by the tray 30 on the line body 60 to the welding work station;

[0072] The tray 30 is lifted to a preset height by the lifting mechanism 40, so that the elastic pressure head 6 of the pressing and blowing tool 10 contacts the welded part and is compressed, so that the elastic pressure head 6 presses the welded part tightly under the action of the elastic force;

[0073] The protective gas source and the dust collector 50 are turned on, so that the protective gas in the protective gas source is blown toward the surface of the weldment through the first joint 81, the first channel 71, the crimping structure 2, and the blowing and suction port in sequence; and the dust on the surface of the weldment and the splash particles generated during the laser welding process are sequentially passed through the suction port 5, the crimping structure 2, the second channel 72, and the second joint 82 into the dust collector in sequence. The dust suction pressure is set according to the requirements of the protective gas source and the weldment, but it must be greater than the blowing pressure.

[0074] The laser transmitter is turned on for welding. During the entire welding process, the shielding gas source and the dust collector 50 are kept on so that the shielding gas and the dust collection are carried out simultaneously, ensuring the welding quality while allowing the weld to cool quickly and reducing the thermal impact of the weld on the product parts around the weld.

[0075] After welding is completed, the laser emitter returns to its original position, the protective gas source and the dust collector 50 are turned off, and the lifting mechanism 40 is lowered back to its original position, so that the welded parts on the tray 30 are separated from the pressing and blowing tooling 10.

[0076] The welded parts after welding flow into the next process under the action of the wire body 60.

[0077] The compacting, blowing and suction tooling 10 in this embodiment has the same specific structure and implementation principle as the compacting, blowing and suction tooling 10 provided in the above embodiment, and can bring the same or similar technical effects, which will not be described one by one here, and please refer to the description of the above embodiment for details.

[0078] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0079] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compacting, blowing and suction tool for laser welding, characterized in that: It includes a bearing member and a crimping structure; The crimping structure is arranged on the bearing member, and the crimping structure has an air blowing port, a dust suction port and a laser perforated hole; The crimping structure includes two elastic pressing heads, which are arranged on both sides of the laser perforated hole in a first direction and are used to abut against the welded parts to be welded, and the air blowing port and the dust suction port are arranged on both sides of the laser perforated hole in a second direction, and the first direction intersects with the second direction; The carrier has a first channel and a second channel therein, and is provided with a first connector for connecting to a protective gas source and a second connector for connecting to a dust collector. The first connector is connected to the air blowing port through the first channel, and the second connector is connected to the dust suction port through the second channel.

2. The laser welding compression blowing and suction tooling according to claim 1 is characterized in that: The crimping structure comprises a crimping seat fixed on the bearing member; The crimping seat is provided with three through holes along the second direction, the through hole in the middle is formed as the laser-perforated hole, and the ends of the through holes on both sides facing away from the carrier respectively form the blowing port and the dust suction port.

3. The laser welding pressing, blowing and suction tooling according to claim 2 is characterized in that: In the direction from the carrier to the crimping seat, the central axes of the air blowing port and the dust suction port are both inclined toward the direction close to the central axis of the laser perforated hole, and the air blowing port and the dust suction port are arranged opposite to each other.

4. The laser welding pressing, blowing and suction tooling according to claim 2 is characterized in that: The elastic pressing head comprises a crimping member and an elastic member; The crimping seat is provided with a mounting groove for the crimping part and the elastic part to pass through, the mounting groove is located on one side of the laser-perforated hole in the first direction, the elastic part is arranged on the side of the mounting groove facing the supporting part, the crimping part is movably passed through the side of the mounting groove away from the supporting part and exposed on the outside of the crimping seat, and the elastic part is fixedly connected to the crimping part.

5. The laser welding pressing, blowing and suction tooling according to claim 4 is characterized in that: At least one of the elastic pressing heads includes at least two elastic members, and the at least two elastic members are arranged at intervals along the second direction.

6. The laser welding pressing, blowing and suction tooling according to claim 1 is characterized in that: A surface of the elastic pressing head away from the bearing member includes a first sub-surface arranged along the first direction and a second sub-surface arranged along the second direction, and the first sub-surface and the second sub-surface are coplanar.

7. The laser welding pressing, blowing and suction tooling according to claim 1 is characterized in that: At least part of the first channel and at least part of the second channel are arranged in parallel along the first direction.

8. The laser welding pressing, blowing and suction tool according to any one of claims 1 to 7, characterized in that: There are at least two crimping structures, at least two of which are connected in sequence along the first direction, the air blowing ports of all the crimping structures are connected to the first channel, and the dust suction ports of all the crimping structures are connected to the second channel; And / or, the crimping structures are in at least two rows, and the at least two rows of crimping structures are spaced apart along the second direction. There are at least two first channels and at least two first joints, respectively, and one row of the crimping structures corresponds to one first channel and one first joint.

9. The laser welding pressing, blowing and suction tool according to any one of claims 1 to 7, characterized in that: The size of the two elastic pressing heads in the first direction is no greater than 13 mm.

10. A laser welding device, characterized in that: It comprises the compression, blowing and suction tooling for laser welding as described in any one of claims 1 to 9.

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