Laser welding equipment

Abstract

The invention discloses laser welding equipment, and relates to the technical field of laser welding, the laser welding equipment comprises an equipment main body, a pressing mechanism, a laser welding head and an air pipe assembly, and the pressing mechanism and the laser welding head are both movably mounted on the equipment main body. The pressing mechanism comprises a pressing piece and a first driving piece, and the first driving piece drives the pressing piece to move in the first direction so as to press the product. A first channel penetrating in the first direction is formed in the pressing piece, a second channel is formed in one side of the pressing piece, and the second channel is communicated with an opening, facing one side of the first direction, of the first channel. The air pipe assembly comprises an exhaust pipe and a protective air pipe, one end of the exhaust pipe communicates with the first channel, the other end of the exhaust pipe communicates with the exhaust device, and one end of the protective air pipe communicates with the second channel. Therefore, components for compressing the product, sucking the welding waste gas and introducing the protective gas are integrated in the compressing piece, so that the structure is simplified, and the manufacturing and maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a laser welding device. Background Art

[0002] Battery pack manufacturing technology is a key link in the new energy vehicle industry. During the assembly of the battery pack, multiple batteries are electrically connected through connectors to achieve the flow of current and the stability of battery performance. Laser welding has been widely used in connector welding due to its high precision, high efficiency and good welding quality.

[0003] When welding the connecting piece, the connecting piece needs to be pressed against the battery welding area, and nitrogen needs to be delivered to the welding area during the welding process to improve the welding quality, and smoke and dust need to be extracted from the welding area to improve the air quality in the welding area. The existing connecting piece welding equipment includes a pressing mechanism, a nitrogen blowing mechanism, and a smoke and dust extraction mechanism, and the multiple mechanisms are respectively arranged near the welding head, which makes the welding equipment structure complicated and increases the manufacturing and maintenance costs. Summary of the invention

[0004] The main purpose of the present invention is to provide a laser welding device, aiming to solve the problems of complex structure, high manufacturing and maintenance costs of existing welding equipment.

[0005] To achieve the above-mentioned purpose, the present invention proposes a laser welding device, which includes an equipment body, a clamping mechanism, a laser welding head and an air pipe assembly; the clamping mechanism is movably installed on the equipment body, the clamping mechanism includes a clamping member and a first driving member, the driving member drives the clamping member to move along a first direction and clamp the product, the clamping member is formed with a first channel running through the first direction, a second channel is formed on one side of the clamping member, the second channel is connected to the opening of the first channel toward the first direction; the laser welding head is movably installed on the equipment body, and the laser emitted by the laser welding head is injected into the first channel along the first direction; the air pipe assembly includes an exhaust pipe and a protective air pipe, one end of the exhaust pipe is connected to the first channel, and the other end is used to connect to the exhaust device, one end of the protective air pipe is connected to the second channel, and the other end is used to connect to the protective gas source.

[0006] In one embodiment of the present invention, the pressing member includes a first sleeve and a second sleeve, the second sleeve is sleeved on one end of the first sleeve, the first sleeve forms the first channel, and the second sleeve and the first sleeve are enclosed to form the second channel.

[0007] In one embodiment of the present invention, the clamping mechanism also includes a first mounting block, the first mounting block is connected to one end of the second sleeve facing the first sleeve, the first driving member is drivingly connected to the first mounting block, the first mounting block forms a guide channel connected to the second channel, and one end of the protective air pipe is connected to the guide channel.

[0008] In one embodiment of the present invention, the cross-sectional shape of the first mounting block is annular and is sleeved on the outer circumference of the first sleeve. The outer circumference of the first sleeve is provided with an air extraction port, and the first mounting block is further provided with an exhaust gas passage connected to the air extraction port;

[0009] The clamping mechanism also includes a second mounting block, the second mounting block forms an exhaust channel, the air pipe assembly also includes a branch pipe, both ends of the branch pipe are respectively connected to the exhaust channel and the exhaust channel, and the exhaust pipe is connected to the exhaust channel.

[0010] In one embodiment of the present invention, the second mounting block and the first mounting block are spaced apart along a first direction, the clamping mechanism further comprises an elastic member, two ends of the elastic member are respectively connected to the first mounting block and the second mounting block, and the first driving member is drivingly connected to the second mounting block.

[0011] In one embodiment of the present invention, the cross-sectional shape of the second mounting block is annular, and the second mounting block is arranged around the circumference of the first sleeve;

[0012] And / or, the clamping mechanism further includes a rangefinder, the light emitted by the rangefinder passes through the first channel and is used to detect the distance between the clamping member and the product.

[0013] In one embodiment of the present invention, the pressing mechanism is provided with at least two pressing members, and the two pressing members are arranged in sequence and spaced apart in a direction perpendicular to the first direction.

[0014] In one embodiment of the present invention, two clamping mechanisms are provided, and the two clamping mechanisms are respectively arranged on two opposite sides of the device body.

[0015] In one embodiment of the present invention, the equipment body includes a frame and two equipment boxes, the frame is mounted on the two equipment boxes, the clamping mechanism and the laser welding head are movably installed on the frame, the two equipment boxes are spaced apart and form a feed space, and the feed space is used to accommodate the products to be welded.

[0016] In one embodiment of the present invention, the laser welding device further comprises a positioning assembly, wherein the positioning assembly comprises two transverse positioning plates, two longitudinal positioning plates and a plurality of second driving members;

[0017] The two transverse positioning plates are movably installed on the two equipment boxes respectively, and the two longitudinal positioning plates are movably installed on the two equipment boxes respectively. The second driving member drives one transverse positioning plate to move toward the other transverse positioning plate, and the second driving member drives one longitudinal positioning plate to move toward the other longitudinal positioning plate, so that the two transverse positioning plates and the two longitudinal positioning plates position and clamp the product.

[0018] The laser welding equipment proposed in the present invention includes an equipment body, a clamping mechanism, a laser welding head and an air pipe assembly, wherein the clamping mechanism and the laser welding head can be movably mounted on the equipment body, so as to facilitate clamping, fixing and welding of different positions of the product by moving the clamping mechanism and the laser welding head. The clamping mechanism includes a clamping member and a first driving member, and the first driving member drives the clamping member to move along a first direction to clamp the product. The clamping member is formed with a first channel that passes through along the first direction, and a second channel is formed on one side, wherein the second channel is connected to the opening of the first channel on one side facing the first direction. The air pipe assembly includes an exhaust pipe and a protective air pipe, wherein one end of the exhaust pipe is connected to the first channel, and the other end is connected to the exhaust device, one end of the protective air pipe is connected to the second channel, and the other end is used to connect to the protective gas source. Therefore, the present application integrates the components for clamping the product, sucking welding waste gas, and introducing protective gas into the clamping member, which simplifies the structure and reduces the manufacturing and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of an embodiment of a laser welding device provided by the present invention;

[0021] Figure 2 A schematic structural diagram of another embodiment of the laser welding equipment provided by the present invention;

[0022] Figure 3 for Figure 3 Left view of;

[0023] Figure 4 for Figure 3 A schematic diagram of the structure of the middle clamping mechanism and the air pipe assembly;

[0024] Figure 5 for Figure 4 Right view of;

[0025] Figure 6for Figure 4 A front view of

[0026] Figure 7 for Figure 5 Section view along AA;

[0027] Figure 8 for Figure 7 A partial enlarged schematic diagram at point B.

[0028] Description of Figure Numbers:

[0029] 1. Laser welding equipment; 10. Equipment body; 11. Frame; 111. First traveling frame; 112. Second traveling frame; 113. Slide rail; 12. Equipment box; 121. Feeding space; 20. Clamping mechanism; 21. Clamping member; 211. First sleeve; 211a. Air extraction port; 212. Second sleeve; 213. First channel; 214. Second channel; 22. First driving member; 23. First mounting block; 231. Guide channel; 232. Exhaust channel; 24. Second mounting block; 241. Air extraction channel; 25. Elastic member; 26. Rangefinder; 30. Laser welding head; 40. Air pipe assembly; 41. Air extraction pipe; 42. Protective air pipe; 43. Branch pipe; 50. Positioning assembly; 51. Horizontal positioning plate; 52. Longitudinal positioning plate; 53. Second driving member.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The present invention provides a laser welding device 1 .

[0035] Combination Figures 1 to 8 As shown, in one embodiment of the present invention, the laser welding equipment 1 includes an equipment body 10, a clamping mechanism 20, a laser welding head 30 and an air pipe assembly 40; the clamping mechanism 20 is movably mounted on the equipment body 10, the clamping mechanism 20 includes a clamping member 21 and a first driving member 22, the driving member drives the clamping member 21 to move along the first direction and clamp the product, the clamping member 21 is formed with a first channel 213 that passes through along the first direction, and a second channel 214 is formed on one side of the clamping member 21, the second channel 214 is connected to the opening of the first channel 213 toward the first direction; the laser welding head 30 is movably mounted on the equipment body 10, and the laser emitted by the laser welding head 30 is injected into the first channel 213 along the first direction; the air pipe assembly 40 includes an exhaust pipe 41 and a protective air pipe 42, one end of the exhaust pipe 41 is connected to the first channel 213, and the other end is used to connect to the exhaust device, one end of the protective air pipe 42 is connected to the second channel 214, and the other end is used to connect to the protective gas source.

[0036] In this embodiment, the device body 10 is used as the basic frame of the entire device and is made of high-strength materials, such as aluminum alloy or steel, to ensure the stability and durability of the structure. The clamping mechanism 20 can be movably mounted on the device body 10 by means of a sliding guide rail, a ball screw or a gear rack transmission system, so that the clamping mechanism 20 can flexibly adjust its position on the device body 10, thereby accurately aligning and crimping the area to be welded, thereby improving the accuracy and efficiency of welding.

[0037] The first driving member 22 may be a servo motor or a cylinder driving device, and a pressure sensor may be integrated therein to monitor the clamping force in real time and automatically adjust the clamping force through a feedback control mechanism to ensure the stability and consistency of the welding process.

[0038] The pressing member 21 can be a cylindrical sleeve to apply uniform pressing force to the product surface to avoid deformation caused by local stress concentration on the product surface; the pressing member 21 can also be a curved surface with a specific curvature to adapt to products of different shapes. The material of the pressing member 21 can be a wear-resistant and strong metal material, such as stainless steel or alloy steel, and the inner wall can be polished to reduce friction resistance and facilitate cleaning and maintenance.

[0039] The first channel 213 in the pressing member 21 is connected along a first direction. Figure 2 The Z-axis direction shown in the figure allows the laser to directly pass through and irradiate the area to be welded, reducing the loss during laser propagation, thereby improving the energy utilization rate of the laser. At the same time, the exhaust device can effectively remove the smoke generated during welding through the first channel 213, keep the welding area clean, and prevent the smoke from interfering with the laser beam, thereby improving the welding quality.

[0040] The second channel 214 is connected to the opening of the first channel 213 toward the first direction, so that the shielding gas can enter the welding area through the second channel 214. The setting of the second channel 214 not only simplifies the gas flow path, but also facilitates the introduction of shielding gas into the welding area to prevent oxidation of the product during welding, thereby further improving the welding quality.

[0041] The laser emitted by the laser welding head 30 is injected into the first channel 213 along the first direction and accurately focused on the area to be welded. The laser welding head 30 can be a CO2 laser, a fiber laser, etc. The specific selection depends on the characteristics of the welding material and the required welding accuracy.

[0042] The exhaust pipe 41 and the protective gas pipe 42 are both made of high temperature resistant and corrosion resistant materials, such as stainless steel or polytetrafluoroethylene, to ensure long-term use without damage in a high temperature environment. The connection between the exhaust pipe 41 and the first channel 213 adopts a sealing design to prevent gas leakage and ensure the exhaust effect. The connection of the protective gas pipe 42 can adopt a quick connector design to facilitate quick replacement and maintenance. The protective gas pipe 42 can also be integrated with a flow meter to monitor the flow of the protective gas in real time to ensure a stable gas supply during welding. The protective gas source introduced into the protective gas pipe 42 can be an inert gas such as nitrogen, argon, helium, etc., to prevent oxidation during welding and ensure welding quality.

[0043] This embodiment integrates the functions of pressing, sucking welding exhaust gas, and introducing protective gas into the pressing member 21, thereby simplifying the structure of the overall equipment and reducing manufacturing costs and maintenance difficulties. In addition, this design also improves welding efficiency and quality and reduces the workload of operators. By integrating these functions, the laser welding equipment 1 can provide a stable welding environment while maintaining high efficiency, thereby improving the quality and consistency of the welded product.

[0044] Combination Figure 7 and Figure 8 As shown, in one embodiment of the present invention, the pressing member 21 includes a first sleeve 211 and a second sleeve 212. The second sleeve 212 is sleeved on one end of the first sleeve 211. The first sleeve 211 forms a first channel 213. The second sleeve 212 and the first sleeve 211 are enclosed to form a second channel 214.

[0045] In this embodiment, the first sleeve 211 is formed with Figure 2 The first channel 213 is through in the Z-axis direction, and is used for the passage of the laser beam. The second sleeve 212 and the first sleeve 211 are enclosed to form a second channel 214, which provides a path for the shielding gas to enter the welding area. This structural design makes the clamping member 21 more compact, and at the same time provides a stable channel structure to ensure the accurate transmission of laser and gas.

[0046] The material of the first sleeve 211 and the second sleeve 212 can be selected from aluminum alloy or stainless steel to provide sufficient strength and corrosion resistance. The exterior of the second sleeve 212 can be designed with an anti-slip texture to increase stability during operation. The intersection of the first channel 213 and the second channel 214 can be designed as an angled slope to optimize the transmission path of the airflow and the laser. The connection part of the first sleeve 211 and the second sleeve 212 can adopt a quick disassembly design, such as a threaded connection or a snap-on connection, to facilitate quick replacement and maintenance; of course, it can also be connected by welding. This design not only facilitates daily maintenance, but also improves the operability of the equipment.

[0047] Combination Figures 5 to 8 As shown, in one embodiment of the present invention, the clamping mechanism 20 also includes a first mounting block 23, the first mounting block 23 is connected to one end of the second sleeve 212 facing the first sleeve 211, the first driving member 22 is drivingly connected to the first mounting block 23, and the first mounting block 23 is formed with a guide channel 231 connected to the second channel 214, and one end of the protective air pipe 42 is connected to the guide channel 231.

[0048] In this embodiment, the first mounting block 23 provides a stable connection point for the first driving member 22 and the second sleeve 212 to ensure the stability and reliability of the pressing member 21 during operation. The first mounting block 23 and the second sleeve 212 can be stably connected by welding, threaded connection or snap connection, and the first mounting block 23 and the first driving member 22 can be connected by a flexible coupling, which can not only transmit power but also absorb certain radial and angular deviations, thereby improving the stability and reliability of the system. The first mounting block 23 and the first driving member 22 can also be connected by bolts, flanges, etc.

[0049] The guide channel 231 of the first mounting block 23 is connected to one end of the shielding gas pipe 42, so as to ensure that the shielding gas can smoothly enter the welding area. The inner surface of the guide channel 231 can be polished, and the corners can be smoothly transitioned to reduce the resistance of gas flow and ensure that the shielding gas is evenly distributed in the welding area.

[0050] The first mounting block 23 may be of one-piece design to improve the integrity and strength of the structure, or may be of segmented design, for example, consisting of a plurality of arc or straight segments connected together by bolts or snaps to simplify the assembly process and facilitate daily maintenance.

[0051] Combination Figures 5 to 8 As shown, in one embodiment of the present invention, the cross-sectional shape of the first mounting block 23 is annular, and is sleeved on the outer periphery of the first sleeve 211. The outer periphery of the first sleeve 211 is provided with an exhaust port 211a, and the first mounting block 23 is also formed with an exhaust gas channel 232 connected to the exhaust port 211a; the clamping mechanism 20 also includes a second mounting block 24, and the second mounting block 24 is formed with an exhaust channel 241, and the air pipe assembly 40 also includes a branch pipe 43, and the two ends of the branch pipe 43 are respectively connected to the exhaust gas channel 232 and the exhaust channel 241, and the exhaust pipe 41 is connected to the exhaust channel 241.

[0052] In this embodiment, the annular first mounting block 23 is tightly mounted on the outer circumference of the first sleeve 211, thereby increasing the contact area between the first mounting block 23 and the first sleeve 211, enhancing the stability of the overall structure, and facilitating the optimization of the gas flow path.

[0053] The exhaust port 211a is connected to the exhaust gas channel 232, so that the smoke and harmful gases generated during the welding process can be smoothly discharged to the exhaust gas channel 232 through the exhaust port 211a to keep the welding area clean. The two ends of the branch pipe 43 are respectively connected to the exhaust gas channel 232 and the exhaust channel 241. The smoke and harmful gases enter the branch pipe 43 through the exhaust gas channel 232, are guided to the exhaust channel 241 by the branch pipe 43, and are finally discharged from the exhaust pipe 41. The design of the exhaust channel 241 and the branch pipe 43 allows the exhaust pipe 41 to match the first sleeve 211 of different shapes and communicate with the exhaust ports 211a opened at different positions on the first sleeve 211, further improving the exhaust efficiency of the exhaust gas, ensuring the air quality of the welding area, and thus ensuring the high quality and reliability of the welding process. The branch pipe 43 can be made of flexible materials to adapt to products of different shapes and changes in welding positions.

[0054] In addition, by providing the second mounting block 24 and providing an exhaust passage 241 inside the second mounting block 24, one second mounting block 24 can be connected to multiple first sleeves 211 through multiple branch pipes 43, thereby improving the utilization rate and integration of the structure. The exhaust pipe 41 can be provided with a regulating valve structure to control the exhaust flow rate to adapt to different welding conditions.

[0055] Combination Figures 5 to 8 As shown, in one embodiment of the present invention, the second mounting block 24 and the first mounting block 23 are spaced apart along the first direction, and the clamping mechanism 20 also includes an elastic member 25, the two ends of the elastic member 25 are respectively connected to the first mounting block 23 and the second mounting block 24, and the first driving member 22 drives and connects the second mounting block 24.

[0056] In this embodiment, the second mounting block 24 and the first mounting block 23 are spaced apart in the Z-axis direction. This design provides more space for the entire clamping mechanism 20 to accommodate other components. By arranging the elastic member 25 between the second mounting block 24 and the first mounting block 23, an effective buffer mechanism is formed to absorb the impact force and vibration generated during the process of clamping the product. For example, when multiple clamping members 21 simultaneously clamp multiple welding areas of a product, when the surface of the welded product is uneven, the elastic member 25 can compensate for these unevenness through its own compression and extension to ensure that multiple clamping members 21 can all contact the surface of the product, thereby improving the welding quality.

[0057] Specifically, Figure 7 As shown, two clamping members 21 are installed on the same first mounting block 23 and the second mounting block 24. During the welding process, the first driving member 22 drives the second mounting block 24 to drive the first mounting block 23 and the two clamping members 21 to move toward the product to be welded along the Z-axis direction. Since there will inevitably be height differences on the surface of the product, the elastic member 25 will be dynamically adjusted according to the changes in the surface. For example, when encountering a raised part, the elastic member 25 will be more compressed at this position; when encountering a recessed part, the elastic member 25 will be relatively less compressed at this position, thereby ensuring that the product surface is evenly stressed, preventing local overpressure or underpressure of the product, and thus ensuring the consistency of welding quality. The elastic member 25 can be a coil spring, a spring or a rubber pad, etc.

[0058] Combination Figures 4 to 8 As shown, in one embodiment of the present invention, the cross-sectional shape of the second mounting block 24 is annular, and the second mounting block 24 is arranged around the circumference of the first sleeve 211;

[0059] And / or, the pressing mechanism 20 further includes a distance meter 26, and the light emitted by the distance meter 26 passes through the first channel 213 and is used to detect the distance between the pressing member 21 and the product.

[0060] In this embodiment, the first sleeve 211 is higher than the second mounting block 24, or at least one end facing the second mounting block 24 is inserted into the annular opening of the second mounting block 24. Compared with the solution in which one end of the first sleeve 211 is located between the first mounting block 23 and the second mounting block 24, this design can effectively prevent the exhaust gas from being discharged from the gap between the first mounting block 23 and the second mounting block 24, thereby preventing the elastic member 25 from being damaged by the high-temperature exhaust gas. At the same time, the first sleeve 211 with a longer length can force the exhaust gas to be discharged through the pre-designed exhaust gas channel 232 and the exhaust pipe 41, ensuring that the exhaust gas is centrally processed and preventing the exhaust gas from leaking to other components inside the equipment. This design not only improves the reliability and safety of the equipment, but also extends the service life of the elastic member 25.

[0061] In the case where the shape and position of the second mounting block 24 are limited or not limited, the rangefinder 26 in the present application can be a laser rangefinder 26 or an infrared rangefinder 26. By real-time monitoring the distance between the pressing member 21 and the product, the pressing force and position of the pressing member 21 during the welding process are ensured, and the consistency of the welding quality is further ensured. The rangefinder 26 is located on the side of the second mounting block 24 away from the second sleeve 212 to reduce interference with other structures. In addition, the housing of the rangefinder 26 can be made of high temperature resistant material to resist the high temperature generated during the welding process.

[0062] Combination Figure 6 As shown, in one embodiment of the present invention, the pressing mechanism 20 is provided with at least two pressing members 21, and the two pressing members 21 are arranged in sequence and spaced apart along a direction perpendicular to the first direction.

[0063] In this embodiment, by providing at least two clamping members 21, clamping force can be applied to multiple welding areas of the product at the same time, so that the laser welding head 30 can weld the multiple welding areas in sequence. Especially when welding products of larger size or with more welding areas, this design can improve the welding efficiency.

[0064] The two clamping members 21 can be simultaneously mounted on the same first mounting block 23 and the second mounting block 24, or can be fixed by different first mounting blocks 23 and the second mounting blocks 24. In addition, each clamping member 21 can be controlled by an independent first driving member 22, so as to independently adjust the clamping force in real time according to the actual situation of the product surface. This flexibility enables the clamping mechanism 20 to adapt to products of different shapes and sizes, thereby improving the versatility and scope of application of the device. The two clamping members 21 can also synchronously control the clamping force of the two clamping members 21 through the same first driving member 22, thereby ensuring the coordinated action of the two clamping members 21 and improving the consistency and stability of the welding process.

[0065] The two pressing members 21 can be designed to be symmetrical or asymmetrical in layout to accommodate products of different shapes. The spacing between the pressing members 21 can be adjusted according to the size of the product and the position of the welding area to ensure uniform compression. In other embodiments, the position of the pressing members 21 can be designed to be adjustable to accommodate products of different sizes.

[0066] Combination Figure 3 As shown, in one embodiment of the present invention, two clamping mechanisms 20 are provided, and the two clamping mechanisms 20 are respectively provided on two opposite sides of the device body 10 .

[0067] In this embodiment, the two clamping mechanisms 20 form a symmetrical layout and can apply clamping force to the welding areas on both sides of the product at the same time, so that the laser welding head 30 can weld different positions of the product in turn, reducing the waiting time for the clamping steps at different positions of the product during the welding process, thereby improving the welding efficiency.

[0068] In addition, the double-sided clamping design can adapt to products of different shapes and sizes. Whether it is a flat part or a part with a certain thickness, the best clamping effect can be achieved by adjusting or changing the position and clamping force of the clamping mechanism 20.

[0069] Combination Figures 1 to 3 As shown, in one embodiment of the present invention, the equipment body 10 includes a frame 11 and two equipment boxes 12, the frame 11 is mounted on the two equipment boxes 12, the clamping mechanism 20 and the laser welding head 30 are movably installed on the frame 11, the two equipment boxes 12 are spaced apart, and form a feed space 121, which is used to accommodate the products to be welded.

[0070] In this embodiment, the frame 11 can be made of high-strength steel or aluminum alloy materials to ensure stability and durability when carrying heavy equipment and products. The equipment box 12 provides a support platform for the frame 11. The equipment box 12 is provided with a control system, a motor system, a power supply system, etc. to realize equipment modularization and facilitate transportation and installation. The feed space 121 formed between the two equipment boxes 12 can be used to place the products to be welded. The products are placed on a mobile trolley, and the trolley drives the products to move into the feed space 121 so that the products enter the state to be welded. A jacking structure is provided on the specific trolley. When the trolley moves into the feed space 121 and reaches a predetermined position in the horizontal direction, the product is lifted to a certain height by the jacking structure so that the product reaches a predetermined position in the vertical direction, thereby facilitating the subsequent clamping mechanism 20 to clamp the welding area of ​​the product, thereby improving the convenience of operation.

[0071] A protective door is arranged on the periphery of the equipment body 10 , and a feed port is opened in the feed space 121 . When the trolley enters the feed space 121 through the feed port, the protective door is closed to prevent laser leakage from affecting the safety of the operator.

[0072] The first traveling frame 111 and the second traveling frame 112 are provided with a plurality of slide rails 113, and the plurality of slide rails 113 are respectively extended along the X-axis and Y-axis directions. Specifically, the height of the first traveling frame 111 is higher than that of the second traveling frame 112, and the laser welding head 30 is arranged on the first traveling frame 111, and the movement in the X-axis and Y-axis directions is realized by the slide rails 113. The clamping mechanism 20 is arranged on the second traveling frame 112, and the movement in the X-axis and Y-axis directions is realized by the slide rails 113. The movement of the clamping mechanism 20 and the laser welding head 30 can be driven by a gear and rack or a ball screw to realize precise position control.

[0073] Combination Figure 2 and Figure 3 As shown, in one embodiment of the present invention, the laser welding device 1 further includes a positioning assembly 50, and the positioning assembly 50 includes two transverse positioning plates 51, two longitudinal positioning plates 52 and a plurality of second driving members 53;

[0074] The two transverse positioning plates 51 are movably installed on the two equipment boxes 12 respectively, and the two longitudinal positioning plates 52 are movably installed on the two equipment boxes 12 respectively. A second driving member 53 drives a transverse positioning plate 51 to move toward the other transverse positioning plate 51, and a second driving member 53 drives a longitudinal positioning plate 52 to move toward the other longitudinal positioning plate 52, so that the two transverse positioning plates 51 and the two longitudinal positioning plates 52 position and clamp the product.

[0075] In this embodiment, the design of the positioning assembly 50 provides precise product positioning and fixation, ensuring the stability of the product and the welding accuracy during the welding process. The lateral positioning plate 51 and the longitudinal positioning plate 52 can use precision linear guides and sliders to achieve smooth and precise movement. The second drive member 53 can use a servo motor to provide precise force control and speed regulation. The material of the positioning plate can be selected from high-strength aluminum alloy or steel to ensure stability under high loads. The surface of the positioning plate is provided with cushioning materials such as rubber and plastic to prevent the product from being pinched. The surface of the positioning plate is also designed with special textures or grooves to increase the friction with the product and prevent sliding during the welding process.

[0076] The lengths of the transverse positioning plate 51 and the longitudinal positioning plate 52 can be designed according to the length and width of the product, so as to be used for long side positioning and short side positioning of the product respectively. During positioning, the second driving member 53 can drive a transverse positioning plate 51 to push the product toward another transverse positioning plate 51 and abut against it, so that the product completes long side positioning; similarly, the second driving member 53 drives a longitudinal positioning plate 52 to push the product toward another longitudinal positioning plate 52 and abut against it, so that the product completes short side positioning. The secondary structural design improves the positioning accuracy of the product, thereby improving the welding accuracy.

[0077] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A laser welding device, characterized in that: The laser welding equipment comprises: Equipment body; A pressing mechanism, the pressing mechanism is movably mounted on the device body, the pressing mechanism comprises a pressing member and a first driving member, the first driving member drives the pressing member to move along a first direction and press the product, the pressing member is formed with a first channel penetrating along the first direction, a second channel is formed on one side of the pressing member, and the second channel is connected to an opening of the first channel toward the first direction; a laser welding head, wherein the laser welding head is movably mounted on the device body, and the laser emitted by the laser welding head is injected into the first channel along the first direction; and The air pipe assembly includes an exhaust pipe and a protective air pipe, one end of the exhaust pipe is connected to the first channel, and the other end is used to connect to the exhaust device, one end of the protective air pipe is connected to the second channel, and the other end is used to connect to the protective gas source.

2. The laser welding equipment according to claim 1, characterized in that: The pressing member includes a first sleeve and a second sleeve. The second sleeve is sleeved on one end of the first sleeve. The first sleeve forms the first channel. The second sleeve and the first sleeve are enclosed to form the second channel.

3. The laser welding equipment according to claim 2, characterized in that: The clamping mechanism also includes a first mounting block, which is connected to one end of the second sleeve facing the first sleeve, the first driving member is drivingly connected to the first mounting block, the first mounting block forms a guide channel connected to the second channel, and one end of the protective air pipe is connected to the guide channel.

4. The laser welding equipment according to claim 3, characterized in that: The cross-section of the first mounting block is annular and is sleeved on the outer circumference of the first sleeve. The outer circumference of the first sleeve is provided with an air extraction port, and the first mounting block is also formed with an exhaust gas passage connected to the air extraction port; The clamping mechanism also includes a second mounting block, the second mounting block forms an exhaust channel, the air pipe assembly also includes a branch pipe, both ends of the branch pipe are respectively connected to the exhaust channel and the exhaust channel, and the exhaust pipe is connected to the exhaust channel.

5. The laser welding equipment according to claim 4, characterized in that: The second mounting block is spaced apart from the first mounting block along a first direction, the clamping mechanism further comprises an elastic member, two ends of the elastic member are respectively connected to the first mounting block and the second mounting block, and the first driving member is drivingly connected to the second mounting block.

6. The laser welding equipment according to claim 5, characterized in that: The cross-section of the second mounting block is annular, and the second mounting block is arranged around the circumference of the first sleeve; And / or, the clamping mechanism further includes a rangefinder, the light emitted by the rangefinder passes through the first channel and is used to detect the distance between the clamping member and the product.

7. The laser welding device according to any one of claims 1 to 6, characterized in that: The clamping mechanism is provided with at least two clamping members, and the two clamping members are arranged in sequence and at intervals along a direction perpendicular to the first direction.

8. The laser welding device according to any one of claims 1 to 6, characterized in that: The two clamping mechanisms are provided, and the two clamping mechanisms are respectively arranged on two opposite sides of the equipment body.

9. The laser welding device according to any one of claims 1 to 6, characterized in that: The equipment body includes a frame and two equipment boxes. The frame is mounted on the two equipment boxes. The clamping mechanism and the laser welding head are movably installed on the frame. The two equipment boxes are spaced apart to form a feed space, which is used to accommodate the products to be welded.

10. The laser welding equipment according to claim 9, characterized in that: The laser welding equipment further comprises a positioning assembly, wherein the positioning assembly comprises two transverse positioning plates, two longitudinal positioning plates and a plurality of second driving members; The two transverse positioning plates are movably installed on the two equipment boxes respectively, and the two longitudinal positioning plates are movably installed on the two equipment boxes respectively. The second driving member drives one transverse positioning plate to move toward the other transverse positioning plate, and the second driving member drives one longitudinal positioning plate to move toward the other longitudinal positioning plate, so that the two transverse positioning plates and the two longitudinal positioning plates position and clamp the product.

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