A hand-held laser welding machine with a guiding structure

Abstract

The present application relates to the technical field of laser welding machines, and specifically discloses a handheld laser welding machine with a guiding structure, which includes a laser welding machine main body and a handheld end of the laser welding machine connected to the laser welding machine main body. It also includes a workbench, and an upper fastening plate can be fixed at different height positions above the workbench through support columns; an auxiliary guiding piece can be detachably arranged on the upper fastening plate, and the auxiliary guiding piece contacts the welding surfaces of the two workpieces. A displacement guiding frame can be arranged on the upper fastening plate to slide linearly along the welding direction; an adaptive track assembly is arranged on the upper fastening plate, and every two of the four elastic connection seats are in a group and are respectively fixed on the upper fastening plate and the workbench. The present invention improves the welding accuracy, efficiency and reduces the operation difficulty.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding machines, and particularly to a handheld laser welding machine with a guiding structure. Background Art

[0002] In the application field of handheld laser welding machines, traditional welding operations often rely on the experience and skills of operators to manually control the welding path. However, handheld operation has too high technical requirements. For the welding of workpieces with complex shapes, it is difficult to ensure the accuracy and consistency of the welding path, and it is easy to cause welding deviation due to human factors, resulting in uneven welding quality. Moreover, with the continuous improvement of the requirements for welding precision and efficiency in industrial production, the traditional handheld welding method lacks an effective rapid adjustment and adaptation mechanism when facing workpieces of different specifications, and it takes a lot of time for positioning and calibration, seriously restricting the improvement of production efficiency. In addition, for some high-precision welding tasks, manual operation is difficult to meet the stable high-precision welding standard, resulting in a high rejection rate of products and increasing production costs. Therefore, it is necessary to develop a handheld laser welding machine with a guiding structure to solve the above problems, improve the welding precision, efficiency and reduce the operation difficulty. Summary of the Invention

[0003] An embodiment of the present application provides a handheld laser welding machine with a guiding structure, and the main purpose is to improve the welding precision, efficiency and reduce the operation difficulty.

[0004] To achieve the above purpose, an embodiment of the present application provides a handheld laser welding machine with a guiding structure, including a laser welding machine main body and a handheld end of the laser welding machine connected to the laser welding machine main body, and further including:

[0005] A workbench for placing two workpieces to be welded;

[0006] An upper fastening plate that can be fixed at different height positions above the workbench through support columns;

[0007] An auxiliary guiding piece that can be detachably arranged on the upper fastening plate, and the lower half of the auxiliary guiding piece penetrates through the workbench. The auxiliary guiding piece contacts the welding surfaces of the two workpieces and is used to form a welding path with the same shape as the welding surface;

[0008] A displacement guiding frame that can be linearly slid along the welding direction and is arranged on the upper fastening plate, and the handheld end of the laser welding machine is movably arranged on the displacement guiding frame;

[0009] An adaptive track assembly is arranged on the upper fastening plate and is connected to the auxiliary guiding piece and the displacement guiding frame; the handheld end of the laser welding machine is enabled to move along the welding path through the adaptive track assembly, the fastening plate and the auxiliary guiding piece.

[0010] Four elastic connection seats, with every two as a group, are respectively fixed on the upper fastening plate and the workbench, and are elastically connected to the ends of the auxiliary guide sheet.

[0011] In a feasible implementation manner, the displacement guide frame includes: at least two linear sliding support frames that are slidably arranged at the top of the upper fastening plate; a transverse support frame is connected horizontally between the two linear sliding support frames and is movably connected to the hand-held end of the laser welding machine; an adaptive slider is movably buckled on the adaptive track assembly; an auxiliary adjustment frame is connected to the adaptive slider, and the upper part of the auxiliary adjustment frame is fixedly connected to the hand-held end of the laser welding machine, and the hand-held end of the laser welding machine can move horizontally on the transverse support frame.

[0012] In a feasible implementation manner, the adaptive track assembly includes: two electromagnet panels that are fixedly arranged at the top of the upper fastening plate and correspond to the positions of the two ends of the upper half of the auxiliary guide sheet; an elastic telescopic pipeline is arranged above the upper fastening plate outside the electromagnet panel; a deformation track is connected between the two elastic telescopic pipelines and is located above the electromagnet panel; an external pipeline is connected to the outside of the elastic telescopic pipeline, and the elastic telescopic pipeline, the deformation track and the external pipeline are communicated with each other; a resistance adjustment part is fixedly arranged on the external pipeline.

[0013] In a feasible implementation manner, the elastic connection seat includes a spring seat, and further includes: a telescopic plate that is telescopically arranged inside the spring seat; a card slot is vertically penetrated and opened in the outer wall of the telescopic outer end of the telescopic plate, and the card slot is detachably clamped with the end of the auxiliary guide sheet.

[0014] In a feasible implementation manner, the auxiliary guide sheet includes: a plurality of contact columns, the plurality of contact columns are parallel to each other and can move relative to each other; a plurality of connecting metal wires are sequentially fixedly penetrated through all the contact columns, and the plurality of connecting metal wires are arranged in parallel; a magnetic sheet is fixedly arranged at the top of each contact column and can adsorb and contact with the adaptive track assembly to drive the deformation track to form a welding path having the same shape as the end face of the welded part.

[0015] In a feasible implementation manner, the support column includes: at least two guide columns that are fixedly installed at the top of the workbench; an abutting nut is rotatably arranged on the outer wall of the guide column, and the upper fastening plate is sleeved outside the guide column and is located above all the abutting nuts.

[0016] In a feasible implementation manner, the displacement guiding frame includes: two abutting wheels are rotatably arranged outside two side walls of the deformation track; a rotating seat is connected to the tops of the two abutting wheels and is located above the deformation track; a top driving magnetic block is fixedly arranged in the rotating seat, and the top driving magnetic block is magnetically driven and connected to the deformation track.

[0017] In a feasible implementation manner, the deformation track assembly includes: a flexible track, both ends of the flexible track are connected to an elastic telescopic pipeline, and the flexible track is in a straight shape in the default state; a clamping groove is opened in the middle position at the top of the flexible track, and the top driving magnetic block is movably arranged in the clamping groove; a fluid cavity is opened in the upper half inner cavity of the flexible track and is communicated with the elastic telescopic pipeline; a plurality of iron blocks are fixedly arranged in the bottom end face of the flexible track at equal intervals and can be mutually adsorbed with the magnetic sheet; a following moving seat is movably arranged in the fluid cavity; a following magnetic block is fixedly arranged on the top end face of the following moving seat and is attracted to the top driving magnetic block in a special shape.

[0018] In a feasible implementation manner, the following components are arranged in the resistance adjusting part: an inner pipe is arranged inside the resistance adjusting part, and the inner pipe is connected to the external pipeline; a spinning member is clamped in the resistance adjusting part and can move in a direction to squeeze or move away from the inner pipe.

[0019] In a feasible implementation manner, a clamp is further arranged above the workbench, and the clamp is used to limit two weldings to be kept in the central position of the workbench and fixed.

[0020] A hand-held laser welding machine with a guiding structure provided by the present application. The upper fastening plate can be adjusted in height as required to adapt to the height requirements of different weldments, which is beneficial to carry out welding in a suitable space; the auxiliary guiding piece can generate an accurate welding route according to the profile of the welding surface of the weldment, and provide a direction guide that conforms to the shape of the welding surface for the welding action at the hand-held end, greatly improving the accuracy of the welding path; the displacement guiding frame restricts the hand-held end to move along a straight track and can finely adjust the position to ensure the matching of the welding points, enhancing the welding accuracy; the adaptive track assembly drives the hand-held end to accurately move along the welding path according to the path information of the auxiliary guiding piece, further optimizing the welding path. To sum up, the device can not only achieve precise welding of different-shaped weldments, effectively reduce the welding error rate, improve the welding quality and speed, but also reduce the technical difficulty requirements for hand-held operation of the laser welding machine, contribute to improving the overall efficiency and quality of the welding operation, and better meet the diverse welding production requirements. Description of the Drawings

[0021] Figure 1Shows the schematic structural diagram of the handheld laser welding machine with a guiding structure provided by the embodiments of the present application in the welding state;

[0022] Figure 2 Shows the schematic structural diagram of the handheld laser welding machine with a guiding structure provided by the embodiments of the present application in the state before welding;

[0023] Figure 3 Shows the schematic structural diagram of the auxiliary guiding piece provided by the embodiments of the present application;

[0024] Figure 4 Shows the exploded structural diagram of the handheld laser welding machine with a guiding structure provided by the embodiments of the present application;

[0025] Figure 5 Shows the top - view structural diagram of the handheld laser welding machine with a guiding structure provided by the embodiments of the present application before the welding state;

[0026] Figure 6 Shows the top - view structural diagram of the handheld laser welding machine with a guiding structure provided by the embodiments of the present application in the state before welding;

[0027] Figure 7 Shows the schematic structural diagram of the resistance adjusting part provided by the embodiments of the present application;

[0028] Figure 8 Shows the schematic structural diagram of the elastic connecting seat provided by the embodiments of the present application;

[0029] Figure 9 Shows the schematic structural diagram of the adaptive slider and the deformation track provided by the embodiments of the present application;

[0030] Figure 10 Shows the top - view structural diagram of the deformation track provided by the embodiments of the present application;

[0031] Figure 11 Shows the schematic structural diagram of the displacement guiding frame provided by the embodiments of the present application;

[0032] Figure 12 Shows Figure 3 The partial enlarged view at A in

[0033] Figure 13 Shows Figure 5 The partial enlarged view at C in

[0034] Figure 14 Shows Figure 5 The partial enlarged view at B in

[0035] In the figure: 10, the main body of the laser welding machine; 11, the hand-held end of the laser welding machine; 20, the workbench; 30, the upper fastening plate; 40, the displacement guiding frame; 50, the adaptive track assembly; 60, the elastic connection seat; 70, the auxiliary guiding piece; 80, the support column; 90, the welded part; 41, the linear sliding support frame; 42, the transverse support frame; 43, the auxiliary adjustment frame; 44, the adaptive slider; 51, the electromagnet panel; 52, the elastic telescopic pipeline; 53, the deformation track; 54, the resistance adjustment part; 55, the external pipeline; 61, the spring seat; 62, the telescopic plate; 63, the clamping groove; 71, the contact column; 72, the connecting wire; 73, the magnetic sheet; 81, the guiding column; 82, the abutting nut; 441, the abutting wheel; 442, the rotating seat; 443, the top driving magnet; 531, the flexible track; 532, the clamping groove; 533, the fluid cavity; 534, the iron block; 535, the following moving seat; 536, the following magnet; 541, the spinning part; 542, the inner pipe. Detailed implementation manners

[0036] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions in the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific features in the embodiments of this specification and the embodiments are detailed descriptions of the technical solutions in the embodiments of this specification, rather than limitations on the technical solutions of this specification. Without conflict, the technical features in the embodiments of this specification and the embodiments may be combined with each other.

[0037] 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 actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including an..." does not exclude the existence of additional identical elements in the process, method, article or device including the element. The term "more than two" includes two or more than two.

[0038] As Figures 1 to 14 As shown, the embodiment of the present application provides a hand-held laser welding machine with a guiding structure, including the main body 10 of the laser welding machine and the hand-held end 11 of the laser welding machine connected to the main body 10 of the laser welding machine, and further including: a workbench 20, an upper fastening plate 30, a displacement guiding frame 40, an adaptive track assembly 50, four elastic connection seats 60 and an auxiliary guiding piece 70;

[0039] The workbench 20 is used to place two workpieces 90 to be welded; the upper clamping plate 30 can be fixed at different height positions above the workbench 20 through the support columns 80; the auxiliary guiding piece 70 can be detachably arranged on the upper clamping plate 30, the lower half of the auxiliary guiding piece 70 penetrates through the workbench 20, and the auxiliary guiding piece 70 contacts the welding surfaces of the two workpieces 90 for forming a welding path with the same shape as the welding surface; the displacement guiding frame 40 can be arranged on the upper clamping plate 30 to slide linearly along the welding direction, and the handheld end 11 of the laser welding machine is movably arranged on the displacement guiding frame 40; the adaptive track assembly 50 is arranged on the upper clamping plate 30 and is connected to the auxiliary guiding piece 70 and the displacement guiding frame 40; the handheld end 11 of the laser welding machine is enabled to move along the welding path through the adaptive track assembly 50, the clamping plate 30 and the auxiliary guiding piece 70; the four elastic connecting seats 60 are grouped in pairs, and are respectively fixed on the upper clamping plate 30 and the workbench 20 and are elastically connected to the ends of the auxiliary guiding piece 70.

[0040] The handheld laser welding machine with a guiding structure provided by the present application, specifically, the workbench 20 is used to stably place two workpieces 90 to be welded, providing a stable operation surface for the welding operation; the upper clamping plate 30 can be adjusted to a suitable height above the workbench 20 by means of the supporting components to adapt to the welding height requirements of different workpieces 90, enabling the welding operation to be carried out at a suitable spatial position; the auxiliary guiding piece 70 can be installed on the upper clamping plate 30 and pass through the workbench 20 to contact the welding surfaces of the workpieces 90. By arranging the auxiliary guiding piece 70, a corresponding welding route can be generated according to the contour of the welding surfaces of the workpieces 90, providing a direction guidance matching the shape of the welding surface for the subsequent welding action of the handheld end 11 of the laser welding machine; the displacement guiding frame 40 is installed on the upper clamping plate 30 and can slide linearly along the welding direction, and the handheld end 11 of the laser welding machine is arranged on the displacement guiding frame 40. Therefore, the handheld end 11 of the laser welding machine can move along a predetermined linear trajectory under the constraint of the displacement guiding frame 40 and perform position fine-tuning simultaneously during this movement to ensure the position matching of the welding points; the adaptive track assembly 50 is installed on the upper clamping plate 30, and by sensing the path information determined by the auxiliary guiding piece 70, forces the handheld end 11 of the laser welding machine to perform welding movement along this path, making the welding path more accurate; the four elastic connecting seats 60 are divided into two groups, respectively fixed on the upper clamping plate 30 and the workbench 20, and are connected to the ends of the auxiliary guiding piece 70, so that the auxiliary guiding piece 70 is in a straight line shape before welding, thus facilitating the contact between the welding surfaces of the workpieces 90 and the auxiliary guiding piece 70 to form an actual welding path; enabling the handheld laser welding machine to accurately weld workpieces 90 with different shapes, effectively improving the welding accuracy, reducing the welding error rate, improving the welding quality and speed, and reducing the technical difficulty requirements for the handheld operation of the laser welding machine.

[0041] Working principle: First, place two workpieces 90 on the workbench 20. According to the height requirement of the workpiece 90, adjust the height of the upper clamping plate 30 above the workbench 20 and fix it. Install the auxiliary guiding piece 70 on the upper clamping plate 30 so that it penetrates the workbench 20 and contacts the welding surface of the workpiece 90 to form a specific welding path. Install the displacement guiding frame 40 on the upper clamping plate 30 and ensure that it can slide linearly along the welding direction. Place the handheld end 11 of the laser welding machine on the displacement guiding frame 40. The adaptive track assembly 50 forces the handheld end 11 of the laser welding machine to move linearly along the displacement guiding frame 40 according to the path information of the auxiliary guiding piece 70, ultimately achieving an efficient and high-precision welding operation.

[0042] As Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 11 shown, in some examples, furthermore, the displacement guiding frame 40 includes: at least two linear sliding support frames 41, a transverse support frame 42, an auxiliary adjustment frame 43, and an adaptive slider 44. At least two linear sliding support frames 41 can be slidably arranged at the top of the upper clamping plate 30; the transverse support frame 42 is horizontally connected between the two linear sliding support frames 41 and is movably connected to the handheld end 11 of the laser welding machine; the adaptive slider 44 can be movably buckled on the adaptive track assembly 50; the auxiliary adjustment frame 43 is connected to the adaptive slider 44, and the upper part of the auxiliary adjustment frame 43 is fixedly connected to the handheld end 11 of the laser welding machine, and the handheld end 11 of the laser welding machine can move horizontally on the transverse support frame 42.

[0043] In this example, the linear sliding support frame 41 can slide on the top of the upper clamping plate 30, providing a reliable sliding basis for the movement process of the handheld end 11 of the laser welding machine and ensuring the stability of the handheld end 11 of the laser welding machine during the welding process; the transverse support frame 42 horizontally connects the two linear sliding support frames 41, enhancing the structural stability of the displacement guiding frame 40 and keeping its overall shape during the sliding process; the adaptive slider 44 can be movably buckled on the adaptive track assembly 50, and it moves in a further direction under the force of the adaptive track assembly 50; the auxiliary adjustment frame 43 connects the adaptive slider 44 and the handheld end 11 of the laser welding machine, transmitting the movement of the adaptive slider 44 to the handheld end 11 of the laser welding machine, enabling the handheld end 11 of the laser welding machine to move synchronously with the adaptive slider 44. During operation, the linear sliding support frame 41 slides to a suitable position on the upper clamping plate 30, the adaptive track assembly 50 forces the adaptive slider 44 to move, and then drives the handheld end 11 of the laser welding machine to produce a movement effect with the same trajectory as the welding path through the auxiliary adjustment frame 43, effectively improving the accuracy of the welding path, reducing the difficulty of welding operation, and having a flexible structural cooperation, which can adapt to various welding working conditions.

[0044] As Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, in some examples, furthermore, the adaptive track assembly 50 includes: two electromagnet panels 51, an elastic telescopic pipeline 52, a deformable track 53, a resistance adjustment part 54, and an external pipeline 55. The two electromagnet panels 51 are fixedly arranged at the top of the upper fastening plate 30 and correspond to the positions of the two side ends of the upper half of the auxiliary guide piece 70. The elastic telescopic pipeline 52 is arranged above the upper fastening plate 30 outside the electromagnet panel 51. The deformable track 53 is connected between the two elastic telescopic pipelines 52 and is located above the electromagnet panel 51. The external pipeline 55 is connected to the outside of the elastic telescopic pipeline 52, and the elastic telescopic pipeline 52, the deformable track 53, and the external pipeline are connected and communicated with each other. The resistance adjustment part 54 is fixedly arranged on the external pipeline 55.

[0045] In this example, it should be noted that the two electromagnet panels 51 are fixed at the top of the upper fastening plate 30, and their function is to adsorb and fix the deformed deformable track 53. When the auxiliary guide piece 70 contacts the welding surface and applies a thrust to the deformable track 53, the deformable track 53 is subjected to the thrust of the auxiliary guide piece 70 and the magnetic suction force, and the shape of the deformable track 53 itself will also match the shape of the welding surface of the welding. At this time, the magnetic force generated by the electromagnet panel 51 adsorbs the deformable track 53, so that the deformable track 53 generates a shape change adapted to the welding surface under the action of the auxiliary guide piece 70 and maintains this deformed state. The elastic telescopic pipeline 52 is connected to both ends of the deformable track 53, aiming to maintain the default shape of the deformable track 53 as a straight line state, and during the process of contacting and deforming with the auxiliary guide piece 70, it gradually changes from a straight line state to the shape of the final welding path, ensuring the consistency of the deformable track 53 with the actual welding path. On the other hand, the elastic telescopic pipeline 52 serves as a fluid transmission channel, is connected and communicated with the deformable track 53 and the external pipeline 55, and ensures the circulating flow of the fluid in the entire assembly. The setting of the fluid is used as a control medium for controlling the moving speed of the handheld end 11 of the laser welding machine.

[0046] The external pipe 55 is connected to the outside of the elastic telescopic pipe 52 to realize a whole closed fluid circulation channel, enabling the fluid to be transmitted between components and being easy to control; the resistance adjusting part 54 is fixed on the external pipe 55, and by adjusting, the flow resistance of the fluid in the system can be changed, thereby controlling the moving speed of the adaptive slider 44 and the handheld end 11 of the laser welding machine, ensuring that the moving speed of the overall handheld end 11 of the laser welding machine is maintained at a reliable and balanced speed, and avoiding the situation of being too fast or too slow during the manual handheld movement.

[0047] As Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8 shown, in some examples, further, the elastic connection seat 60 includes a spring seat 61, and further includes: a telescopic plate 62 and a card slot 63. The telescopic plate 62 is telescopically arranged inside the spring seat 61; the card slot 63 is vertically and penetratingly opened in the outer wall of the telescopic outer end of the telescopic plate 62, and the end of the card slot 63 is detachably clamped with the end of the auxiliary guide piece 70.

[0048] In this example, the spring seat 61 serves as the basic component of the elastic connection seat 60, providing a telescopic space and elastic support force for the telescopic plate 62; the telescopic plate 62 is telescopically placed inside the spring seat 61, and can flexibly adjust the extended or retracted length according to the force condition of the auxiliary guide piece 70, effectively buffering the auxiliary guide piece 70 to approach a straight state during the adjustment process before welding, so as to fully receive the force applied by the auxiliary guide piece 70, thereby generating a better adaptive shape with the end face of the weldment 90; the card slot 63 is vertically and penetratingly opened in the outer wall of the telescopic outer end of the telescopic plate 62, and is detachably clamped with the end of the auxiliary guide piece 70, facilitating the installation and disassembly of the auxiliary guide piece 70, enabling the auxiliary guide piece 70 to be quickly and accurately connected to the elastic connection seat 60, ensuring its stable position during work, and at the same time, after assisting in completing the deformation action of the deformation track 53, the whole auxiliary guide piece 70 can also be disassembled for corresponding welding operations.

[0049] As Figure 2 , Figure 3 , Figure 5 , Figure 12 and Figure 14 shown, in some examples, further, the auxiliary guide piece 70 includes: a plurality of contact columns 71, a plurality of connecting metal wires 72 and a magnetic sheet 73. A plurality of contact columns 71 are parallel to each other and can move relative to each other; a plurality of connecting metal wires 72 are sequentially fixed through all the contact columns 71, and a plurality of connecting metal wires 72 are arranged in parallel; the magnetic sheet 73 is fixedly arranged at the top of each contact column 71 and can adsorb and contact with the adaptive track assembly 50 to drive the deformation track 53 to form a welding path having the same shape as the end face of the weldment 90.

[0050] In this example, several contact posts 71 that are parallel to each other and can move relative to each other can flexibly adjust their own positions when contacting the end face of the welded part 90, so as to accurately sense the contour information of the welding surface according to the different shapes of the end face. Several connecting metal wires 72 that are arranged in parallel and fixedly penetrate all the contact posts 71 in sequence connect each contact post 71 into a whole, so that the connecting metal wires 72 and the contact posts 71 maintain a certain associated stability during the relative movement, avoiding the situation of the contact posts 71 being scattered or separated. The magnetic force pieces 73 fixed at the top of each contact post 71, when approaching the adaptive track assembly 50, adsorb and contact the deformation track 53 in the adaptive track assembly 50 by virtue of magnetic force, and transmit the shape information of the welding surface sensed by the contact posts 71 to the deformation track 53 through magnetic force, prompting the deformation track 53 to deform under the action of magnetic force, the thrust of the contact posts 71 and other forces, and finally form a welding path that is the same as the shape of the welding surface of the welded part 90, so as to ensure that the handheld end 11 of the laser welding machine can weld along the path matching the welding surface of the welded part 90, effectively improving the accuracy of the welding path, reducing the welding deviation, enabling the welding machine to adapt to the welding requirements of various welded parts 90 with different shapes, and enhancing the applicability and flexibility of the equipment.

[0051] It should also be noted that several connecting metal wires 72 not only connect the contact posts 71 into a whole, maintain their correlation during relative movement, and prevent scattering and separation, but also because they have a certain stiffness, they can effectively restrict the movement range and direction of the contact posts 71 during the working process of the auxiliary guide piece 70, avoiding the situation where the formed track shape is complex and unsmooth due to the over-soft connecting metal wires 72, and reducing the difficulty of the adaptive slider 44 moving on the deformation track 53.

[0052] As Figure 1 、 Figure 2 and Figure 4 shown, in some examples, further, the support column 80 includes: at least two guide columns 81 and abutting nuts 82. At least two guide columns 81 are fixedly installed on the top of the workbench 20; the abutting nuts 82 are rotatably and liftably arranged on the outer wall of the guide columns 81, and the upper fastening plate 30 is sleeved outside the guide columns 81 and is located above all the abutting nuts 82.

[0053] In this example, it can be understood that at least two guiding columns 81 are fixed to the top end of the workbench 20 to provide positioning guidance in the vertical direction for the installation of the upper fastening plate 30, enabling it to move up and down only along the guiding columns 81 to ensure the accuracy of the position; the abutting nut 82 is rotatably and vertically arranged on the outer wall of the guiding column 81, and its height position on the guiding column 81 can be changed by rotation. The upper fastening plate 30 is sleeved outside the guiding column 81 and above all the abutting nuts 82. After adjusting the height of the abutting nut 82, the abutting nut 82 can support the upper fastening plate 30, thereby fixing the upper fastening plate 30 at the required height position, facilitating the flexible adjustment of the height of the upper fastening plate 30 according to the actual requirements of the welded part 90 and the welding operation, enabling the subsequent components connected thereto to be in a suitable spatial position, facilitating operation and adjustment, and adapting to different welding scenarios.

[0054] As Figure 9 shown, in some examples, furthermore, the adaptive slider 44 includes: two abutting wheels 441, a rotating seat 442, and a top driving magnet 443. The two abutting wheels 441 are rotatably arranged outside the two side walls of the deformation track 53; the rotating seat 442 is connected to the tops of the two abutting wheels 441 and is located above the deformation track 53; the top driving magnet 443 is fixedly arranged in the rotating seat 442, and the top driving magnet 443 is magnetically driven and connected to the deformation track 53.

[0055] In this example, the two abutting wheels 441 are rotatably arranged outside the side wall of the deformation track 53. When the displacement guiding frame 40 moves, the abutting wheels 441 roll along the lower half side wall of the deformation track 53, which can not only support the displacement guiding frame 40 and reduce the frictional resistance with the deformation track 53, but also restrict the lateral movement of the displacement guiding frame 40 to enable it to move stably along the new path after the deformation of the deformation track 53; the rotating seat 442 is connected to the tops of the two abutting wheels 441 and is located above the deformation track 53, providing an installation basis for the top driving magnet 443 and forming a good sleeved shape relative to the outside of the deformation track 53; the top driving magnet 443 is fixed in the rotating seat 442 and is magnetically driven and connected to the deformation track 53. After the deformation track 53 undergoes a shape change due to the action of the auxiliary guiding piece 70, the magnetic force between the top driving magnet 443 and the deformation track 53 interacts, thereby restricting the moving speed of the top driving magnet 443 and the overall handheld end 11 of the laser welding machine on the deformation track 53 to be constant, effectively ensuring the stability of the welding path and improving the welding quality.

[0056] As Figure 6 、 Figure 9 and Figure 10As shown, in some examples, further, the deformation track 53 assembly includes: a flexible track 531, a clamping groove 532, a fluid chamber 533, a plurality of iron blocks 534, a following moving seat 535, and a following magnet 536. The two ends of the flexible track 531 are connected to the elastic telescopic pipeline 52, and the flexible track 531 is in a straight shape by default; the clamping groove 532 is opened at the middle position of the top end of the flexible track 531, and the top driving magnet 443 is movably arranged in the clamping groove 532; the fluid chamber 533 is opened in the upper half inner cavity of the flexible track 531 and is communicated with the elastic telescopic pipeline 52; a plurality of iron blocks 534 are fixedly arranged in the bottom end face of the flexible track 531 at equal intervals and can adsorb with the magnetic sheet 73; the following moving seat 535 is movably arranged in the fluid chamber 533; the following magnet 536 is fixedly arranged on the top end face of the following moving seat 535 and is attracted to the top driving magnet 443 in a special shape.

[0057] In this example, the two ends of the flexible track 531 are connected to the elastic telescopic pipeline 52. The flexible track 531 is initially in a straight shape and serves as the basic carrier of the entire welding path and guides the moving path of the welding. The clamping groove 532 is opened in the middle of its top end, providing a moving space for the top driving magnet 443, facilitating the magnetic force transmission between the top driving magnet 443 and the following magnet 536 in the flexible track 531 here. The fluid chamber 533 is located in the upper half inner cavity of the flexible track 531 and is communicated with the elastic telescopic pipeline 52. The internal fluid can flow therein. By changing the blocking state of the fluid through the resistance adjusting part 54, the flow velocity of the fluid is correspondingly changed, and the moving resistance of the following magnet 536 in the fluid chamber 533 is correspondingly changed. At the same time, with the magnetic adsorption effect between the following magnet 536 and the top driving magnet 443, the moving speed of the top driving magnet 443 is limited to the same moving speed as the following magnet 536. In this way, when the staff manually pushes the displacement guiding frame 40, its moving speed can be restricted by the fluid flow, so that the moving speed of the handheld end 11 of the overall laser welding machine on the deformation track 53 is relatively balanced, ensuring the reliability of the welding speed.

[0058] As Figure 7 As shown, in some examples, further, the resistance adjusting part 54 is provided with: a spinning part 541 and an inner tube 542. The inner tube 542 is arranged inside the resistance adjusting part 54, and the inner tube 542 is connected to the external pipeline 55; the spinning part 541 is clamped in the resistance adjusting part 54 and can move in the direction of squeezing or moving away from the inner tube 542.

[0059] In this example, it should be noted that when facing workpieces 90 with different thicknesses, the welding speed of the laser welding machine is different. Therefore, in this example, the resistance adjusting part 54 can further change the speed limit of the deformation track 53 on the handheld end 11 of the laser welding machine. Specifically, the inner tube 542 is located inside the resistance adjusting part 54 and is connected to the external pipe 55. The swaging part 541 is clamped inside the resistance adjusting part 54 and can move in the direction of squeezing or moving away from the inner tube 542. When the swaging part 541 moves towards the inner tube 542, it will squeeze the inner tube 542, making the internal space of the inner tube 542 smaller, and the flow rate of the fluid flowing through here will decrease, thereby slowing down the flow rate of the fluid in the entire system. Correspondingly, the moving speed of the following moving seat 535 in the fluid chamber 533 will also decrease, restricting the moving speed of the adaptive slider 44 and the handheld end 11 of the laser welding machine and making it slower. When the swaging part 541 moves away from the inner tube 542, the squeezing force on the inner tube 542 decreases, the internal space of the inner tube 542 becomes larger, the fluid flow resistance decreases accordingly, and the fluid flow speed increases. Similarly, ultimately, the movement of the handheld end 11 of the laser welding machine becomes easier, and the corresponding moving speed is also increased. By adjusting the fluid speed in this way, the moving speed of the adaptive slider 44 and the handheld end 11 of the laser welding machine is controlled, ensuring that their moving speed is maintained at a suitable and balanced state, avoiding the influence of too fast or too slow speed on the welding quality, improving the welding quality and efficiency, and being able to be flexibly adjusted according to different welding situations to better meet the requirements of various welding scenarios.

[0060] In some examples, furthermore, a fixture (not shown in the figure) is also provided above the workbench 20. The fixture is used to limit the two workpieces to be welded and fix them in the centered position on the workbench 20.

[0061] It can be understood that the fixture is arranged above the workbench 20, and its main function is to position and fix the two workpieces 90. The workpieces 90 are constrained to the centered position on the workbench 20 through its own structure. Before the welding operation, the workpieces 90 are placed on the workbench 20, and then the fixture applies forces to the workpieces 90 from different directions to firmly fix the workpieces 90 in the centered position, preventing the workpieces 90 from shifting or shaking during the welding process. In this way, when the subsequent auxiliary guiding piece 70 contacts the welding surface of the workpiece 90 to shape the welding path, it can more accurately obtain the accurate shape information of the welding surface. When the displacement guiding frame 40 drives the handheld end 11 of the laser welding machine to move along the welding path, it will not deviate due to the position change of the workpiece 90, ensuring that the entire welding process proceeds along the preset accurate path and effectively improving the accuracy of the welding path.

[0062] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A handheld laser welding machine with a guiding structure, comprising a laser welding machine main body (10) and a handheld end (11) of the laser welding machine connected to the laser welding machine main body (10), characterized in that, It further includes: A workbench (20) for placing two workpieces to be welded (90); An upper fastening plate (30) that can be fixed at different height positions above the workbench (20) through support columns (80); An auxiliary guiding piece (70) that can be detachably arranged on the upper fastening plate (30). The lower half of the auxiliary guiding piece (70) penetrates through the workbench (20), and the auxiliary guiding piece (70) contacts the welding surfaces of the two workpieces (90) to form a welding path with the same shape as the welding surfaces; A displacement guiding frame (40) that can be linearly slidably arranged on the upper fastening plate (30) along the welding direction, and the handheld end (11) of the laser welding machine is movably arranged on the displacement guiding frame (40); An adaptive track assembly (50) arranged on the upper fastening plate (30) and connected to the auxiliary guiding piece (70) and the displacement guiding frame (40); the handheld end (11) of the laser welding machine is enabled to move along the welding path through the adaptive track assembly (50), the fastening plate (30), and the auxiliary guiding piece (70); Four elastic connection seats (60), with every two as a group, respectively fixed on the upper fastening plate (30) and the workbench (20) and elastically connected to the ends of the auxiliary guiding piece (70); The displacement guiding frame (40) includes: At least two linear sliding support frames (41) that can be slidably arranged on the top of the upper fastening plate (30); A transverse support frame (42) connected horizontally between the two linear sliding support frames (41) and movably connected to the handheld end (11) of the laser welding machine; An adaptive slider (44) that can be movably fastened on the adaptive track assembly (50); An auxiliary adjustment frame (43) connected to the adaptive slider (44). The upper part of the auxiliary adjustment frame (43) is fixedly connected to the handheld end (11) of the laser welding machine, and the handheld end (11) of the laser welding machine can move horizontally on the transverse support frame (42); The adaptive track assembly (50) includes: Two electromagnet panels (51) fixedly arranged on the top of the upper fastening plate (30) and corresponding to the positions of the two ends of the upper half of the auxiliary guiding piece (70) on both sides; Elastic telescopic pipelines (52) arranged above the upper fastening plate (30) outside the electromagnet panels (51); A deformed track (53) connected between the two elastic telescopic pipelines (52) and located above the electromagnet panels (51); An external pipeline (55) connected to the outside of the elastic telescopic pipelines (52), and the elastic telescopic pipelines (52), the deformed track (53), and the external pipeline are connected and communicated; A resistance adjustment part (54) fixedly arranged on the external pipeline (55).

2. The hand-held laser welding machine with a guiding structure according to claim 1, characterized in that: The elastic connection seat (60) includes a spring seat (61), and further includes: A telescopic plate (62) that is telescopically arranged inside the spring seat (61); The card slot (63) is vertically and penetratingly formed in the outer wall of the telescopic outer end of the telescopic plate (62), and the end of the card slot (63) is detachably clamped with the end of the auxiliary guiding piece (70).

3. The hand-held laser welding machine with a guiding structure according to claim 2, characterized in that: The auxiliary guiding piece (70) includes: A plurality of contact columns (71), the plurality of contact columns (71) are parallel to each other and can move relative to each other; A plurality of connecting metal wires (72), which are sequentially and fixedly penetrated through all the contact columns (71), and the plurality of connecting metal wires (72) are arranged in parallel; Magnetic pieces (73), which are fixedly arranged at the top ends of each of the contact columns (71) and can be adsorbed and contacted with the adaptive track assembly (50) to drive the deformation track (53) to form a welding path having the same shape as the end face shape of the welded part (90).

4. The hand-held laser welding machine with a guiding structure according to claim 3, wherein: The support column (80) includes: At least two guiding columns (81), which are fixedly installed at the top end of the workbench (20); Abutting nuts (82), which are rotatably and liftably arranged on the outer wall of the guiding column (81), and the upper buckling plate (30) is sleeved outside the guiding column (81) and is located above all the abutting nuts (82).

5. The hand-held laser welding machine with a guiding structure according to claim 3, characterized in that: The displacement guiding frame (40) includes: Two abutting wheels (441), which are rotatably arranged outside the two side walls of the deformation track (53); A rotating seat (442), which is connected to the top ends of the two abutting wheels (441) and is located above the deformation track (53); A top driving magnet (443), which is fixedly arranged in the rotating seat (442), and the top driving magnet (443) is magnetically driven and connected to the deformation track (53).

6. The hand-held laser welding machine with a guiding structure according to claim 5, wherein: The deformation track (53) assembly includes: A flexible track (531), the two ends of the flexible track (531) are connected to the elastic telescopic pipeline (52), and the flexible track (531) is in a straight line shape in the default state; A clamping groove (532), which is formed in the middle position at the top end of the flexible track (531), and the top driving magnet (443) can be movably arranged in the clamping groove (532); A fluid cavity (533), which is formed in the upper half inner cavity of the flexible track (531) and is communicated with the elastic telescopic pipeline (52); A plurality of iron blocks (534), which are fixedly arranged in the bottom end face of the flexible track (531) at equal intervals and can be mutually adsorbed with the magnetic pieces (73); A following moving seat (535), which can be movably arranged in the fluid cavity (533); A following magnet (536), which is fixedly arranged on the top end face of the following moving seat (535) and is attracted to the top driving magnet (443) in a special shape.

7. The hand-held laser welding machine with a guiding structure according to claim 5, wherein: The resistance adjusting part (54) is internally provided with: An inner pipe (542), which is arranged inside the resistance adjusting part (54), and the inner pipe (542) is connected to the external pipeline (55); A spinning member (541), the spinning member (541) can be clamped in the resistance adjusting part (54) and move in the direction of squeezing or moving away from the inner pipe (542).

8. The hand-held laser welding machine with a guiding structure according to claim 1, wherein: A fixture is further provided above the workbench (20), and the fixture is used to limit the two welds to be held at the centered position of the workbench (20) and fixed.

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