Laser pre-welding device

Abstract

The utility model discloses a laser pre-welding device which comprises a machining platform, and the machining platform is provided with a conveying channel used for conveying workpieces. The clamping assembly comprises two clamping mechanisms and a clamping driving part, and the two clamping mechanisms are arranged in pairs and located on the two sides of the conveying channel; the clamping driving part is used for driving the two clamping mechanisms to be close to or away from each other in the X-axis direction; the jacking and pressing assembly comprises a jacking and pressing seat and a jacking and pressing seat driving part, the jacking and pressing seat is located above the machining platform and located between the two clamping mechanisms, and the jacking and pressing seat driving part is used for driving the jacking and pressing seat to move in the Z-axis direction; and the number of the welding assemblies is at least two, and every two welding assemblies are arranged in pairs and located on the two sides of the machining platform correspondingly so as to weld the two sides of the workpiece. The laser pre-welding device can position the upper side, the lower side and the two sides of a workpiece and synchronously weld the two sides of a battery, positioning is more comprehensive, displacement in the welding process is avoided, and the welding efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to a laser pre-welding device. Background Technology

[0002] In the traditional manufacturing process of square batteries, the cover plate and aluminum shell need to be sent to the pre-welding station to be welded together. Before welding, the cover plate and aluminum shell need to be positioned to ensure the accuracy of the welding. Traditional positioning mechanisms only press and position the cover plate or aluminum shell vertically or clamp it horizontally. Because only part of the position is positioned, if it is affected by some external force or internal stress during the welding process, the part that is not positioned may be displaced, thus affecting the welding quality.

[0003] In addition, existing welding equipment usually welds one side of the battery and then flips the battery to weld the other side, which cannot weld both sides of the battery at the same time, resulting in low welding efficiency. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a laser pre-welding device that can position the workpiece vertically and horizontally, and simultaneously weld the two sides of the battery. The positioning is more comprehensive, avoiding displacement during the welding process, and the welding efficiency is also higher.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A laser pre-welding apparatus, comprising:

[0007] A processing platform is provided with a conveying channel for conveying workpieces along the Y-axis direction.

[0008] The clamping assembly includes two clamping mechanisms and a clamping drive. The two clamping mechanisms are arranged in pairs and located on both sides of the conveying channel. The two clamping mechanisms can move along the X-axis to move closer to or further away from each other. The clamping drive is used to drive the two clamping mechanisms to move along the X-axis.

[0009] A pressing assembly, comprising a pressing seat and a pressing seat drive, wherein the pressing seat is located above the machining platform and between the two clamping mechanisms, and the pressing seat drive is used to drive the pressing seat to move along the Z-axis direction;

[0010] The welding assembly includes at least two welding assemblies, with each pair of welding assemblies arranged in pairs and located on both sides of the processing platform to weld the two sides of the workpiece.

[0011] Furthermore, two clamping drive components are provided, and the two clamping drive components are correspondingly arranged with the two clamping mechanisms; the clamping mechanism includes a mounting base, a clamping plate, two clamping blocks, and two clamping block drive components. The clamping plate is fixedly connected to the mounting base, and the two clamping blocks are movably connected to both sides of the clamping plate and can move along the Y-axis direction to move closer to or further away from each other. The two clamping block drive components are mounted on the mounting base and are used to drive the two clamping blocks to move; the clamping drive components are used to drive the mounting base to move along the X-axis direction.

[0012] Furthermore, the mounting base is provided with a first slide rail, which is located below the clamping plate. The two clamping blocks are respectively provided with sliders at their opposite ends. The sliders slide in cooperation with the first slide rail. The clamping block driving member is connected to the sliders to drive the sliders to slide.

[0013] Furthermore, the bottom of the mounting base is provided with a second slide rail, and the power output end of the clamping drive is provided with a connecting plate, which slides in cooperation with the second slide rail.

[0014] Furthermore, it also includes a slag removal assembly, which is located on the side of the mounting base away from the clamping plate; the slag removal assembly includes a plurality of slag suction tubes, the clamping plate is provided with a plurality of suction holes, one end of the plurality of slag suction tubes is respectively connected to the plurality of suction holes, and the other end of the plurality of slag suction tubes is connected to the outside.

[0015] Furthermore, the welding assembly includes a welder, a first welding drive, and a second welding drive. The first welding drive is used to drive the welder to move along the Z-axis direction, and the second welding drive is used to drive the welder to move along the X-axis direction.

[0016] Furthermore, the welding assembly also includes a connecting seat and a connecting seat drive. The connecting seat is installed on both sides of the processing platform and can move along the Y-axis. The connecting seat drive is connected to the connecting seat to drive the connecting seat to move along the Y-axis. The welder, the first welding drive, and the second welding drive are all installed on the connecting seat.

[0017] Furthermore, the connecting seat is also provided with a slag receiving mechanism, which is connected to multiple slag suction pipes.

[0018] Furthermore, the top pressure seat is equipped with a detection sensor, which is used to detect distance.

[0019] Furthermore, multiple clamping components and multiple pressing components are provided, with the multiple clamping components distributed at intervals along the Y-axis direction, and the multiple pressing components corresponding to the multiple clamping components.

[0020] In summary, the laser pre-welding device provided by this utility model has the following technical effects: when welding a workpiece, the clamping drive drives two clamping mechanisms to move closer to each other along the X-axis to clamp both sides of the workpiece, and then the top pressure seat drive drives the top pressure seat to press the workpiece downward in the Z-axis direction, so that the upper and lower ends and both sides of the workpiece are locked during the welding process, so as to position the workpiece at multiple angles, avoid displacement of the workpiece during the welding process, and improve the welding quality;

[0021] In addition, after the workpiece is fully positioned, welding is performed simultaneously on both sides of the workpiece by welding components on both sides of the conveyor channel, thereby improving welding efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of the clamping assembly in this utility model;

[0025] Figure 4 This is a schematic diagram of the top-pressure component in this utility model;

[0026] Figure 5 This is a schematic diagram of the welding assembly in this utility model;

[0027] The meanings of the reference numerals in the attached figures are as follows:

[0028] 10. Machining platform; 20. Clamping assembly; 21. Mounting base; 22. Clamping plate; 221. Adsorption hole; 23. Clamping block; 231. Slider; 24. Clamping block drive; 25. First slide rail; 26. Second slide rail; 27. Clamping drive; 28. Connecting plate; 31. Top pressure seat; 32. Top pressure seat drive; 33. Detection sensor; 34. Buffer mechanism; 40. Welding assembly; 41. Welder; 42. Connecting base; 43. First welding drive; 44. Second welding drive; 45. Connecting base drive; 50. Slag suction pipe; 60. Slag receiving mechanism. Detailed Implementation

[0029] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] See Figures 1 to 5 This utility model discloses a laser pre-welding device, including a processing platform 10, a clamping assembly 20, a pressing assembly, and a welding assembly 40. The processing platform 10 is provided with a conveying channel, which can convey workpieces along the Y-axis direction. The clamping assembly 20 includes two clamping mechanisms and a clamping drive 27. The two clamping mechanisms are arranged in pairs and are located on both sides of the conveying channel. The clamping drive 27 is used to drive the two clamping mechanisms to move along the X-axis direction so that the two clamping mechanisms move closer to each other or further away from each other.

[0033] The pressing assembly includes a pressing seat 31 and a pressing seat drive 32. The pressing seat 31 is positioned above the processing platform 10 and above the gap between the two clamping mechanisms. The pressing seat drive 32 is used to drive the pressing seat 31 to move along the Z-axis. In addition, at least two welding assemblies 40 are provided. Each pair of welding assemblies 40 is arranged in pairs and located on both sides of the processing platform 10 to weld the two sides of the workpiece.

[0034] Based on the above structure, in the Y-axis direction (e.g.) Figure 1 As shown in the diagram (i.e., the length direction of the processing platform 10), taking the workpiece conveying direction as an example, in actual use, the battery is conveyed to the conveying channel by a robotic arm, a clamp, or magnetic levitation technology. At this time, the clamping drive 27 drives the two clamping mechanisms of the conveying channel along the X-axis direction (e.g., the length direction of the processing platform 10). Figure 1 As shown in the diagram, i.e., in the width direction of the processing platform 10, the two sides move closer together until they abut against the left and right sides of the workpiece, so as to clamp the left and right sides of the workpiece in the X-axis direction. Then, the top pressure seat drive 32 is activated, driving the top pressure seat 31 along the Z-axis direction (as shown in the diagram). Figure 1As shown in the figure, the processing platform 10 moves downwards to abut against the workpiece to press the top of the workpiece so that the workpiece is clamped in all directions. This prevents the workpiece from shifting during the welding process and improves the welding quality. Afterwards, the welding components 40 on both sides of the conveying channel weld the workpiece simultaneously on both sides to improve welding efficiency.

[0035] Specifically, when the laser pre-welding device in this embodiment is applied to the field of battery processing, the following description takes a square battery as an example. Specifically, when it is necessary to weld the aluminum shell and the cover plate of the battery together, the cover plate and the aluminum shell are transferred to the conveying channel by automated technologies such as robotic arms or clamps. The cover plate is placed on top of the aluminum shell. At this time, the top pressure seat 31 presses the cover plate downward along the Z-axis direction under the drive of the top pressure seat drive 32, so that the cover plate and the aluminum shell are tightly attached and not easy to loosen. At the same time, the clamping mechanism moves closer to each other and clamps the left and right sides of the aluminum shell under the drive of the clamping drive 27, completing the positioning and clamping action before the cover plate and the aluminum shell are pre-welded. After the clamping and positioning action is completed, the two sets of welding components 40 on both sides of the conveying channel simultaneously weld the gap between the aluminum shell and the cover plate on both sides, so that the aluminum shell and the cover plate are welded together.

[0036] After the welding operation is completed, the top pressure seat drive 32 drives the top pressure seat 31 away from the battery along the Z-axis, and the clamping drive 27 drives the two clamping mechanisms away from each other until the battery is released. The entire device is reset and the next round of clamping operation begins.

[0037] During the welding process, the aluminum shell and the cover plate are pressed tightly from all sides, making it difficult for either the aluminum shell or the cover plate to shift. This avoids welding position deviations caused by component movement or shaking during the welding process, and prevents problems such as discontinuous welding and uneven weld points caused by component movement. This reduces the probability of welding defects and improves the welding quality and reliability of the battery.

[0038] In addition, because the aluminum shell and the cover plate are pressed together on all sides before welding, the contact between the cover plate and the aluminum shell is tighter, and the metal fusion can be better achieved during welding, thereby improving the bonding strength of the weld and making the structure at the weld joint more robust, thus improving the battery's sealing and safety.

[0039] More specifically, since at least two sets of welding components 40 are arranged in pairs on both sides of the conveying channel, the two sides of the workpiece can be welded simultaneously by the two opposing sets of welding components 40. Welding of both sides of the workpiece can be achieved without the need for a flipping mechanism or other structures, saving unnecessary processing steps and indirectly improving welding efficiency.

[0040] It should be noted that the top pressure seat drive 32 in this embodiment can be a linear motor drive (such as a combination of a motor and an electric cylinder) or a drive cylinder. During assembly, the top pressure seat 31 is connected to the drive end of the motor or the piston rod of the drive cylinder so that the top pressure seat 31 moves linearly in the Z-axis direction.

[0041] More specifically, the top pressing assembly also includes a buffer mechanism 34, which can be an existing spring, elastic column, or buffer, or other structure with elastic stress. The buffer mechanism 34 is installed between the top pressing seat 31 and the top pressing seat drive 32, or it is set on the side of the top pressing seat 31 closer to the workpiece. In this way, when the top pressing seat 31 presses close to the workpiece, the elastic stress of the buffer mechanism 34 itself greatly reduces the impact force, making the pressing seat 31 press more smoothly when it presses close to the workpiece, and the collision process becomes gentle, effectively reducing the risk of the top pressing seat 31 damaging the surface of the workpiece during the pressing process.

[0042] Furthermore, the clamping drive unit 27 can be configured as one or two. When there is only one clamping drive unit 27, it can be a motor with dual-axis output as the drive unit, such as a dual-axis servo motor. The two output shafts of the motor can be directly connected to the transmission components (such as lead screws) of the two clamping mechanisms through couplings or other means. By precisely controlling the motor, the two output shafts can rotate synchronously, driving the lead screw to rotate, thereby causing the two clamping mechanisms to move closer or further away at the same time. Of course, the clamping drive unit 27 can also drive the two clamping mechanisms to move closer or further away from each other through a transmission mechanism (such as a bidirectional lead screw), so that a single clamping drive unit 27 can simultaneously drive the two clamping mechanisms to perform linear motion at the same time.

[0043] When two clamping drive units 27 can be used, the clamping drive units 27 can be driven by linear motors (such as the combination of motor and electric cylinder or linear motor module) or drive cylinders, etc., so that the two clamping drive units 27 can synchronously drive the two clamping mechanisms to move closer or further away from each other.

[0044] More specifically, in this embodiment, the clamping mechanism can be a clamping block 23 or a clamping plate 22, and the top pressure seat 31 can also be a block or plate structure; while the welding assembly 40 can be a laser welding machine or an ultrasonic welding machine.

[0045] Preferably, in this embodiment, there are two clamping drive members 27, which are correspondingly arranged with two clamping mechanisms. The two clamping drive members 27 drive the two clamping mechanisms to move linearly, so that they move closer or further apart. The clamping mechanism includes a mounting base 21, a clamping plate 22, two clamping blocks 23, and two clamping block drive members 24. The clamping plate 22 is fixedly connected to the mounting base 21. The two clamping blocks 23 are movably connected to both sides of the clamping plate 22 and can move along the Y-axis to move closer or further apart. The two clamping block drive members 24 are mounted on the mounting base 21 and are used to drive the two clamping blocks 23 to move. The clamping drive members 27 are connected to the mounting base 21 to drive the mounting base 21 to move along the X-axis.

[0046] Based on this structure, during assembly, since there are two clamping drive units 27, each clamping mechanism can be controlled independently when using two clamping drive units 27, so that the two clamping mechanisms can be operated separately. First, one clamping mechanism is brought close and clamped, and then the other clamping mechanism is started. Moreover, the movement speed, clamping force and other parameters of the second clamping mechanism can be different from the first to adapt to the assembly requirements of parts with different shapes and materials. Thus, the clamping force of the two clamping mechanisms can be adjusted more accurately according to the actual welding requirements, thereby optimizing the welding quality.

[0047] Specifically, when the workpiece is conveyed between the two clamping mechanisms, the clamping drive 27 is connected to the mounting base 21, allowing the mounting base 21 to move along the X-axis. This causes the clamping plate 22 to move closer to the workpiece along the X-axis, clamping the workpiece from the width direction. Furthermore, since two movable clamping blocks 23 are provided on both sides of the clamping plate 22, after the clamping plate 22 moves closer to the workpiece and clamps it, the clamping block drive 24 drives the clamping blocks 23 to move closer to each other along the Y-axis (i.e., the length direction of the workpiece), clamping the workpiece in the length direction. Thus, by setting the clamping plate 22 and clamping blocks 23 on the mounting base 21, the workpiece can be clamped in all directions after the mounting base 21 moves closer to the workpiece, making it less likely for the workpiece to shake during the welding process.

[0048] After welding is completed, the clamping drive 24 drives the two clamping blocks 23 to move away from each other and reset. The clamping drive 27 also drives the mounting base 21 to reset, so that the clamping plate 22 and clamping blocks 23 are all reset, and the next round of cycle operation begins.

[0049] It should be noted that the clamping block 23 can be mounted on both sides of the clamping plate 22 by means of sliding connection, and the clamping block drive component 24 can be driven by a drive cylinder or motor to connect with the clamping block 23 to drive the clamping block 23 to slide; of course, the clamping block 23 can also be connected to the power output end of the clamping block drive component 24 through a transmission structure such as a lead screw or a rotating shaft, so that the clamping block 23 can be driven to make linear motion by the clamping block drive component 24 driving the lead screw or rotating shaft to rotate.

[0050] Preferably, in this embodiment, the two clamping blocks 23 are movably connected to the mounting base 21 by a sliding connection. During assembly, a first slide rail 25 is provided on the mounting base 21, and the first slide rail 25 is located below the clamping plate 22. Slider blocks 231 are provided at opposite ends of the two clamping blocks 23, so that the sliders 231 slide in cooperation with the first slide rail 25. After the power output end of the clamping block driving member 24 is connected to the slider 231, the clamping block driving member 24 drives the slider 231 to slide along the Y-axis, thereby driving the clamping blocks 23 to slide, making the movement of the clamping blocks 23 along the Y-axis smoother.

[0051] It should be noted that the clamping block drive component 24 in this embodiment can be a drive cylinder. During assembly, the piston rods of the two drive cylinders can be set in opposite directions in the Y-axis direction and connected to the two sliders 231 respectively. In this way, when the drive cylinder drives the piston rod to extend or extend, it can push the two sliders 231 to slide in opposite directions along the Y-axis direction, so that the two clamping blocks 23 move closer or further away from each other.

[0052] More specifically, a second slide rail 26 is provided at the bottom of the mounting base 21, and a connecting plate 28 is provided at the power output end of the clamping drive component 27. During assembly, the connecting plate 28 is slidably assembled with the second slide rail 26, so that the connecting plate 28 and the second slide rail 26 slide in cooperation. In this way, when the clamping drive component 27 drives the connecting plate 28 to move in a straight line, the mounting base 21 will also move along the same straight line. Through the cooperation of the connecting plate 28 and the second slide rail 26, the power output by the clamping drive component 27 is transmitted to the mounting base 21, and the second slide rail 26 plays a role in constraining and guiding the connecting plate 28, allowing the connecting plate 28 to move only along the length of the slide rail, preventing it from being displaced in other directions, and ensuring that the movement trajectory of the mounting base 21 is a straight line.

[0053] Preferably, the clamping drive 27 in this embodiment can be a combination of a motor and an electric cylinder. During assembly, the connecting plate 28 is fixedly connected to the nut of the electric cylinder or the protruding end of the cylinder body. When the motor of the electric cylinder is working, the lead screw rotates to make the nut move linearly, thereby driving the connecting plate 28 to move linearly. Compared with other drive components, the electric cylinder usually has higher precision and positioning accuracy, and can achieve more accurate speed control, thereby driving the connecting plate 28 to move linearly more precisely.

[0054] Furthermore, it also includes a slag removal assembly, which is located on the side of the mounting base 21 away from the clamping plate 22. The slag removal assembly includes multiple slag suction tubes 50, and the clamping plate 22 is provided with multiple suction holes 221. One end of the multiple slag suction tubes 50 is connected to the multiple suction holes 221 respectively, and the other end of the multiple slag suction tubes 50 is connected to the outside.

[0055] Specifically, the gas source, negative pressure generating device, and slag suction pipe 50 can be connected by a pipeline. For example, the slag suction pipe 50 can be connected to a negative pressure generating device such as an air compressor or a vacuum pump. When the workpiece is clamped by the clamping plate 22, welding slag may accumulate in the gap between the clamping plate 22 and the workpiece during the welding process. Therefore, the clamping plate 22 is provided with an adsorption hole 221 that is connected to the slag suction pipe 50. In this way, during the welding process, it is only necessary to open the valve of the gas circuit so that the slag suction pipe 50 can draw the welding slag from the welding area through the adsorption hole 221 under the action of negative pressure, thereby avoiding the accumulation of welding slag and making the structure more practical.

[0056] Furthermore, the welding assembly 40 includes a welder 41, a first welding drive 43, and a second welding drive 44. The first welding drive 43 is used to drive the welder 41 to move along the Z-axis direction, and the second welding drive 44 is used to drive the welder 41 to move along the X-axis direction.

[0057] Specifically, since the welding position of the workpiece may change at multiple angles due to the change in the size of the workpiece during the welding process, the welding device 41 is driven by the first welding drive 43 to move along the Z-axis direction, so that the welding device 41 can be adjusted in the Z-axis direction. When the welding position in the height direction of the workpiece changes, the welding device 41 can be driven by the first welding drive 43 to move in the Z-axis direction to adapt to the change in the height direction of the welding position of the workpiece.

[0058] Similarly, when the welding position of the workpiece changes in the width direction, the second welding drive 44 drives the welder 41 to move along the X-axis direction, so that the welder 41 can adjust the distance in the width direction of the workpiece. This allows the welder 41 to adjust the welding angle in real time according to the width of the workpiece, making the welding more accurate. This also allows the welder 41 to be used for workpieces of various sizes during the welding process, thus expanding its application range.

[0059] It should be noted that, in this embodiment, both the first welding drive component 43 and the second welding drive component 44 can be linear motor drive components (such as a combination of a motor and an electric cylinder) or drive cylinders, etc. During assembly, the welder 41 is connected to the first welding drive component 43 and the second welding drive component 44 respectively through the mounting structure (see...). Figure 5This allows the welder 41 to move along either the X-axis or the Z-axis.

[0060] Preferably, the welding assembly 40 also includes a connecting seat 42 and a connecting seat drive 45. During assembly, the connecting seat 42 is installed on both sides of the processing platform 10 and can move along the Y-axis. The connecting seat drive 45 is connected to the connecting seat 42 to drive the connecting seat 42 to move along the Y-axis. The welder 41, the first welding drive 43, and the second welding drive 44 are all installed on the connecting seat 42. Thus, when the welding position of the workpiece changes in the length direction, the connecting seat drive 45 can drive the connecting seat 42 to move along the Y-axis, thereby driving the welder 41 to move along the Y-axis. This allows the welder 41 to move in the length direction of the workpiece, so that when the welding position of the workpiece changes in the length direction, the welder 41 can also be adjusted in real time according to the welding position. This allows the entire welder 41 to be flexibly adjusted in multiple directions, making the entire device more widely applicable.

[0061] More specifically, the connecting seat 42 is also equipped with a slag receiving mechanism 60, which is connected to multiple slag suction pipes 50, so that the slag adsorbed by the slag suction pipes 50 can be guided into the slag receiving mechanism 60. Finally, the slag inside the slag receiving mechanism 60 can be processed in a unified manner, making the structure more practical.

[0062] It should be noted that the slag receiving mechanism 60 in this embodiment can be a box or shell structure with a filling cavity set on the processing platform 10. It can be connected to the welding assembly 40 or to the clamping mechanism. The specific position is not limited.

[0063] In addition, a detection sensor 33 is provided on the top pressure seat 31. Specifically, the detection sensor 33 can be a laser sensor. The laser sensor detects the distance between the top pressure seat 31 and the top of the workpiece, so as to adjust the distance between the top pressure seat 31 and the workpiece in real time, so as to avoid the top pressure seat 31 getting too close to the workpiece, causing the workpiece to get stuck and unable to be smoothly transferred to the next station.

[0064] More specifically, this utility model also includes a CCD inspection mechanism, which detects whether there are scratches, pits, protrusions or other defects on the surface of the workpiece. This prevents defective batteries from entering the pre-welding station, which could lead to poor welding quality, such as incomplete welding or misaligned welding. This indirectly improves the welding quality of the workpiece, thereby improving the quality and efficiency of the entire production process.

[0065] Furthermore, multiple clamping components 20 and multiple pressing components are provided, with multiple clamping components 20 distributed at intervals along the Y-axis direction, and multiple pressing components corresponding to multiple clamping components 20.

[0066] Specifically, in order to improve welding efficiency, multiple clamping components 20 and top pressing components are provided in this embodiment. In this way, when multiple workpieces are conveyed in the conveying channel, multiple clamping components 20 and top pressing components can clamp multiple workpieces at the same time, and then multiple welding components 40 on both sides can weld multiple welding components 40 at the same time to improve welding efficiency.

[0067] It should be noted that the welding assembly 40 can be set to four, six or more units according to actual production needs, with each pair arranged on both sides of the conveying channel.

[0068] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A laser pre-welding device, characterized in that, include: A processing platform is provided with a conveying channel for conveying workpieces along the Y-axis direction. The clamping assembly includes two clamping mechanisms and a clamping drive. The two clamping mechanisms are arranged in pairs and located on both sides of the conveying channel. The two clamping mechanisms can move along the X-axis to move closer to or further away from each other. The clamping drive is used to drive the two clamping mechanisms to move along the X-axis. A pressing assembly, comprising a pressing seat and a pressing seat drive, wherein the pressing seat is located above the machining platform and between the two clamping mechanisms, and the pressing seat drive is used to drive the pressing seat to move along the Z-axis direction; The welding assembly includes at least two welding assemblies, with each pair of welding assemblies arranged in pairs and located on both sides of the processing platform to weld the two sides of the workpiece.

2. The laser pre-welding device as described in claim 1, characterized in that, Two clamping drive components are provided, and the two clamping drive components are correspondingly arranged with the two clamping mechanisms. The clamping mechanism includes a mounting base, a clamping plate, two clamping blocks, and two clamping block drive components. The clamping plate is fixedly connected to the mounting base, and the two clamping blocks are movably connected to both sides of the clamping plate and can move along the Y-axis direction to move closer to or further away from each other. The two clamping block drive components are mounted on the mounting base and are used to drive the two clamping blocks to move. The clamping drive components are used to drive the mounting base to move along the X-axis direction.

3. The laser pre-welding device as described in claim 2, characterized in that, The mounting base is provided with a first slide rail, which is located below the clamping plate. The two clamping blocks are respectively provided with sliders at their opposite ends. The sliders slide in cooperation with the first slide rail. The clamping block drive is connected to the sliders to drive the sliders to slide.

4. The laser pre-welding device as described in claim 2, characterized in that, The bottom of the mounting base is also provided with a second slide rail, and a connecting plate is provided at the power output end of the clamping drive component, the connecting plate being slidably engaged with the second slide rail.

5. The laser pre-welding device as described in claim 2, characterized in that, It also includes a slag removal assembly, which is located on the side of the mounting base away from the clamp plate; the slag removal assembly includes multiple slag suction tubes, the clamp plate is provided with multiple suction holes, one end of the multiple slag suction tubes is respectively connected to the multiple suction holes, and the other end of the multiple slag suction tubes is connected to the outside.

6. The laser pre-welding apparatus as described in claim 5, characterized in that, The welding assembly includes a welder, a first welding drive, and a second welding drive. The first welding drive is used to drive the welder to move along the Z-axis, and the second welding drive is used to drive the welder to move along the X-axis.

7. The laser pre-welding apparatus as described in claim 6, characterized in that, The welding assembly further includes a connecting seat and a connecting seat drive. The connecting seat is installed on both sides of the processing platform and can move along the Y-axis. The connecting seat drive is connected to the connecting seat to drive the connecting seat to move along the Y-axis. The welder, the first welding drive, and the second welding drive are all installed on the connecting seat.

8. The laser pre-welding apparatus as described in claim 7, characterized in that, The connecting seat is also provided with a slag receiving mechanism, which is connected to multiple slag suction pipes.

9. The laser pre-welding apparatus according to any one of claims 1-8, characterized in that, The top pressure seat is equipped with a detection sensor, which is used to detect distance.

10. The laser pre-welding apparatus according to any one of claims 1-8, characterized in that, Multiple clamping components and multiple pressing components are provided. The multiple clamping components are distributed at intervals along the Y-axis direction, and the multiple pressing components are correspondingly arranged with the multiple clamping components.

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