Rapid positioning tool for laser welding

Abstract

The invention belongs to the technical field of welding equipment, and relates to a rapid positioning tool for laser welding in order to solve the problem that according to an existing positioning device, the operation difficulty of manual workpiece taking and placing is large. Comprising a workbench, a sliding groove plate, a containing table, a positioning device, a driving device and a welding device. The sliding groove plate is arranged in the length direction of the workbench, the containing table is slidably connected with the sliding groove plate, the positioning devices are fixedly connected with the containing table, the positioning devices are arranged in the moving direction of the containing table, the positioning devices are symmetrically arranged on the two sides of the containing table, and the positioning devices are provided with fixing grooves used for fixing workpieces to be welded. The driving device and the welding device are fixedly connected with the workbench and arranged at the two ends of the workbench respectively, and the driving end of the driving device is fixedly connected with the containing table. According to the tool, the workpiece to be welded can be quickly positioned.

Description

Technical Field

[0001] This invention belongs to the field of welding equipment technology, and in particular relates to a tooling for rapid positioning in laser welding. Background Technology

[0002] Laser welding is a welding technology that uses a high-energy-density laser beam as a heat source to melt and join materials together. It offers advantages such as high welding speed, high precision, and a small heat-affected zone, and is widely used in industrial manufacturing, electronics, and medical fields.

[0003] Laser Welding Principles: Laser Generation: The laser used in laser welding is typically generated by a laser device, such as a fiber laser or a CO2 laser. These lasers can produce high-intensity, highly monochromatic, and highly directional laser beams. Focusing and Transmission: The laser beam is focused using an optical system (such as lenses or mirrors), concentrating its energy in a very small area. The focused laser beam is then transmitted to the welding position via an optical fiber or mirror. Absorption and Melting: When the laser beam irradiates the workpiece surface, the material absorbs the laser energy and rapidly heats up to its melting point, forming a molten pool. Due to the high energy density of the laser, the molten pool forms quickly and precisely. Cooling and Solidification: After the laser irradiation stops, the molten pool rapidly cools and solidifies, forming a weld that joins the two workpieces together. Laser welding offers high precision: The focused laser beam has an extremely small spot size, enabling the welding of delicate components, making it suitable for welding micro-parts or complex structures. High Efficiency: Laser welding is fast, significantly improving production efficiency, especially suitable for large-scale production. Low Heat Affected Zone: The small heat affected zone in laser welding reduces thermal damage to surrounding materials, making it suitable for welding thin plates or heat-sensitive materials. High flexibility: Laser welding can be automated through programming, adapting to welding needs for different shapes and materials. High-quality welds: Welds have a large depth-to-width ratio, high strength, and good sealing performance, making them suitable for applications requiring high precision.

[0004] Laser welding positioning devices ensure that the laser beam accurately illuminates the predetermined position, avoiding welding defects caused by positional deviations, such as incomplete penetration and weld misalignment. This improves production efficiency: automated positioning devices can complete welding tasks quickly and accurately, reducing manual intervention and increasing production efficiency. It also ensures welding quality: precise positioning and a stable welding process guarantee weld strength and sealing, improving product reliability and lifespan. Furthermore, it adapts to complex processes: for complex shapes or irregular workpieces, the positioning device can perform precise welding according to a preset path, meeting diverse welding needs. Finally, it reduces labor intensity: automated positioning devices reduce the difficulty and labor intensity of manual operation, especially in harsh environments such as high temperatures and high radiation, protecting operator safety.

[0005] However, during use, in the centering and welding operation of the two sets of L-shaped folded plate workpieces, the size limitation of the two plates resulted in a small operating space for manual workpiece positioning. The positioning device is fixed, and the space of the welding device above further increased the difficulty of manual workpiece handling, which is not conducive to actual operation.

[0006] Therefore, it is necessary to provide a tooling for rapid positioning in laser welding to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this invention is to provide a tooling for rapid positioning in laser welding, suitable for welding and positioning two sets of L-shaped folded plate workpieces.

[0008] This invention provides a tooling for rapid positioning in laser welding, characterized in that it includes a worktable, a slide plate, a placement table, a positioning device, a driving device, and a welding device; The slide plate is arranged along the length of the workbench, the placement platform is slidably connected to the slide plate, the positioning device is fixedly connected to the placement platform, the positioning device is arranged along the movement direction of the placement platform, the positioning devices are symmetrically arranged on both sides of the placement platform, and the positioning device is provided with a fixing groove for fixing the workpiece to be welded. The driving device and the welding device are fixedly connected to the worktable. The driving device and the welding device are respectively located at both ends of the worktable. The driving end of the driving device is fixedly connected to the placement platform.

[0009] Compared with the prior art, the present invention has the following technical effects: In this application, the slide plate is fixedly connected to the worktable, and the placement platform is slidably connected to the slide plate. The driving device and welding device are located at both ends of the worktable. The driving device can move the placement platform along the slide plate, allowing it to enter or leave the working area of ​​the welding device. The placement platform serves as the moving carrier for the positioning device, enabling the placement and removal of the workpiece to be welded to be performed outside the welding device, unaffected by the welding device itself, thus improving the convenience of manual operation. The placement platform and positioning device achieve precise positioning of the workpiece to be welded. This effectively avoids the shaking of the workpiece during welding due to its unstable position, ensuring the accuracy of the welding position and improving welding quality. Even under certain external forces during welding, the workpiece can maintain a stable position without shaking or shifting, thereby ensuring the stability and consistency of the welding process. Attached Figure Description

[0010] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 A schematic diagram of the tooling for rapid positioning in laser welding provided in an embodiment of the present invention; Figure 2 for Figure 1 Detailed disassembly diagram of each component of the tooling used for rapid positioning in laser welding; Figure 3 for Figure 1 Detailed view of the disassembled welding device; Figure 4 for Figure 1 Detailed diagram of the disassembled central placement platform and positioning device; Figure 5 for Figure 1 Detailed image of the central placement platform; Figure 6 for Figure 1 Detailed image of the disassembled positioning device; Figure 7 for Figure 1 Detailed diagram of the auxiliary positioning device; Figure 8 This is a detailed drawing of the support component.

[0011] Figure label: 1-Workbench; 2-Slide plate; 3-Placement platform; 31-Slider; 32-Positioning groove; 33-Fixing hole; 34-Mounting hole; 35-Positioning hole; 4-Positioning device; 41-Positioning plate; 42-Connecting block; 43-Screw hole plate; 44-Limiting plate; 45-Plug; 46-Auxiliary groove; 47-Extrusion rod; 48-Pull plate; 5-Workpiece; 6-Cylinder; 7-Welding device; 71-Gantry frame; 72-Electric track; 73-Electric actuator; 74-Welding torch; 75-Operating lever; 76-Push plate; 8-Auxiliary fixing device; 81-Bracket; 82-Telescopic rod; 83-Side rod; 84-Shaft seat; 85-Limiting wheel; 9-Supporting component; 91-Insertion rod; 92-Rubber pad; 93-Adjusting tube; 94-Adjusting column; 95-Disk. Detailed Implementation

[0012] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0013] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., 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 invention 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 invention.

[0014] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0015] See details Figures 1 to 8 As shown, the tooling for rapid positioning in laser welding provided by the present invention includes a worktable 1, a slide plate 2, a placement table 3, a positioning device 4, a driving device, and a welding device 7. The slide plate 2 is arranged along the length direction of the worktable 1, the placement table 3 is slidably connected to the slide plate 2, the positioning device 4 is fixedly connected to the placement table 3, the positioning device 4 is arranged along the movement direction of the placement table 3, the positioning devices 4 are symmetrically arranged on both sides of the placement table 3, and the positioning device 4 is provided with a fixing groove for fixing the workpiece 5 to be welded. The driving device and the welding device 7 are fixedly connected to the worktable 1, the driving device and the welding device 7 are respectively arranged at both ends of the worktable 1, and the driving end of the driving device is fixedly connected to the placement table 3.

[0016] In practice: A tooling for rapid positioning in laser welding is provided, comprising: a worktable 1, a slide plate 2, a placement table 3, a positioning device 4, a driving device, and a welding device 7; like Figures 1-2As shown, a welding device 7 is mounted on the top right side of the workbench 1. Slide plates 2 are installed at intervals on the top surface of the workbench 1, extending to the right side of the welding device 7. A placement platform 3 is installed inside the slide plate 2 and slidably connected to it. Positioning devices 4 are installed on both sides of the top surface of the placement platform 3. The workpiece 5 to be welded is inserted into the positioning device 4. The initial point of the placement platform 3 is located on the left side of the top surface of the workbench 1. A cylinder 6 is installed on the top left side of the workbench 1. The cylinder 6 is connected to the bottom left side of the placement platform 3 through a connecting frame 61. During operation, the cylinder 6 is activated to move the placement platform 3 within the slide plate 2. By using the placement platform 3 as the moving carrier of the positioning device 4, the workpiece 5 to be welded can be placed outside the welding device 7 without being affected by the welding device 7, thus improving the convenience of manual operation.

[0017] Preferably, in one embodiment, such as Figures 4-5 As shown, the placement platform 3 includes a slider 31, a positioning groove 32, a fixing hole 33, a mounting hole 34, and a positioning hole 35. The slider 31 is installed on the bottom side of the placement platform 3. The slider 31 is slidably limited to the sliding groove plate 2. The positioning groove 32 is opened on the side of the placement platform 3. The positioning groove 32 is an inverted T-shaped structure. The fixing hole 33 is located below the positioning groove 32. The mounting hole 34 is opened in the middle of the left side of the placement platform 3. The positioning hole 35 is located in the middle of the top surface of the placement platform 3. There are multiple sets of positioning holes 35, located on both sides of the mounting hole 34 in the horizontal direction.

[0018] Preferably, in one embodiment, such as Figure 2 , Figure 6 As shown, the positioning device 4 includes a positioning plate 41, a connecting block 42, a screw hole plate 43, a limiting plate 44, a replaceable plug 45, an auxiliary groove 46, a pressing rod 47, and a pull plate 48. The top surface of the positioning plate 41 is open, and the workpiece 5 to be welded is inserted inside it. The bottom of the positioning plate 41 is equipped with a connecting block 42, which has a T-shaped structure. The connecting block 42 is inserted into the positioning groove 32. The left side of the connecting block 42 is equipped with a screw hole plate 43, and the screw holes of the screw hole plate 43 correspond to the fixing holes 33. During operation, by inserting the connecting block 42 into the positioning groove 32, the screw hole plate 43 abuts against the side wall of the placement platform 3. The fixing bolts are screwed into the fixing holes 33 and the screw hole plate 43 to fix and limit the positioning plate 41. The middle part of the positioning plate 41 is provided with a fixing groove for fixing the workpiece 5 to be welded.

[0019] Preferably, in one embodiment, such as Figure 6As shown, the left side of the positioning plate 41 is open, and a replaceable plug 45 is installed inside. A limiting plate 44 is installed on the left side of the replaceable plug 45. During operation, the width of the workpiece 5 to be welded is measured in advance, and a suitable length of replaceable plug 45 is selected. The replaceable plug 45 is inserted into the positioning plate 41, so that the limiting plate 44 abuts against the left side of the positioning plate 41. By screwing a bolt between the two, the replaceable plug 45 is installed at the positioning plate 41, thereby achieving precise positioning of the side of the workpiece 5 to be welded. This precise positioning method effectively avoids the shaking of the workpiece due to unstable position during welding, ensuring the accuracy of the welding position and improving the welding quality. During the welding process, even if subjected to a certain external force, the workpiece 5 to be welded can always maintain a stable position without shaking or shifting, thus ensuring the stability and consistency of the welding process. Selecting a suitable length of replaceable plug 45 by measuring the width of the workpiece 5 to be welded in advance is simple and convenient. No complex modifications or adjustments are required to the positioning plate 41. Simply replacing the replaceable plugs 45 of different lengths can adapt to the limiting requirements of workpieces of different widths, greatly improving the versatility and efficiency of the equipment, reducing production costs, helping to ensure the dimensional accuracy of the welded workpieces, meeting the requirements of product design and use, and improving the product qualification rate.

[0020] Preferably, in one embodiment, such as Figure 6 As shown, auxiliary grooves 46 are provided on both inner side walls (fixed groove side walls) of the positioning plate 41. The auxiliary grooves 46 are semi-circular in shape. The extrusion rods 47 are inserted into the auxiliary grooves 46. The extrusion rods 47 are rubber rods. During operation, after the workpiece 5 to be welded is inserted into the positioning plate 41, the extrusion rods 47 are inserted into the auxiliary grooves 46 according to the different distances between the workpiece 5 to be welded and the inner wall of the positioning plate 41. The extrusion rods 47 can be inserted intermittently on both sides of the auxiliary grooves 46. By setting semi-circular auxiliary grooves 46 on both side walls of the positioning plate 41 and cooperating with rubber extrusion rods 47, the insertion position and number of extrusion rods 47 can be flexibly adjusted according to the distance between the workpiece 5 to be welded and the inner wall of the positioning plate 41 (such as intermittent insertion on both sides), so as to achieve adaptive lateral positioning of the workpiece 5 to be welded. After being inserted into the auxiliary grooves 46, the rubber extrusion rods 47 can produce elastic deformation, uniformly conform to the surface of the workpiece, fill the gaps and form friction, effectively limiting the lateral displacement and slight shaking of the workpiece during the welding process. This design improves workpiece stability without the need for complex mechanical structures, while adapting to the assembly requirements of workpieces of different sizes. It reduces the risk of welding errors caused by excessive gaps and ensures high precision and high quality in the welding process.

[0021] Preferably, in one embodiment, such as Figure 6As shown, a pull plate 48 is installed on the left side of the connecting block 42. The pull plate 48 is a handle structure, which is intended to facilitate manual handling of the positioning plate 41.

[0022] Preferably, in one embodiment, such as Figures 4-6 As shown, there are multiple sets of positioning grooves 32 and fixing holes 33 arranged at intervals. The purpose is to facilitate manual adjustment of the position of the positioning plate 41 according to the distance between the workpieces 5 to be welded on both sides, thereby increasing the applicability without changing the centering position of the welding device 7.

[0023] Preferably, in one embodiment, such as Figure 3 As shown, the welding device 7 consists of a gantry frame 71, an electric track 72, an electric push rod 73, a welding torch 74, an operating lever 75, and a push plate 76. The electric track 72 is installed on the top of the gantry frame 71, and a sliding plate is installed inside the electric track 72. The electric push rod 73 is installed at the bottom of the sliding plate. The welding torch 74 is installed on the bottom left side of the electric push rod 73, and the operating lever 75 is installed on the right side of the welding torch 74. The operating lever 75 is a U-shaped structure extending to the right, and its length is greater than the length of the workpiece 5 to be welded. The push plate 76 is installed on the bottom left end of the operating lever 75.

[0024] Preferably, in one embodiment, such as Figure 5 , Figure 8As shown, an auxiliary fixing device 8 is installed inside the mounting hole 34. The auxiliary fixing device 8 includes a bracket 81, a telescopic rod 82, a side rod 83, a bearing seat 84, and a limiting wheel 85. The bottom of the bracket 81 is installed and connected to the telescopic end of the telescopic rod 82, and the other end of the telescopic rod 82 is installed and connected to the inner wall of the mounting hole 34. Side rods 83 are installed vertically at intervals on the top right side of the bracket 81. Bearing seats 84 are installed on the opposite sides of the side rods 83. Limiting wheels 85 are installed inside the bearing seats 84. Multiple sets of bearing seats 84 and limiting wheels 85 are arranged vertically at intervals. The length of the side rod 83 is... The length of the workpiece 5 to be welded is less than that of the workpiece 5. The upper and lower limit wheels 85 are respectively located on the upper and lower sides of the welding line of the workpiece 5 to be welded. The limit wheels 85 abut against the upper and lower surfaces of the workpiece 5 to be welded. During operation, after the workpiece 5 to be welded is installed, the bracket 81 is manually pushed to retract the telescopic rod 82 into the mounting hole 34, so that the side rod 83 and the limit wheels 85 move toward the right side of the workpiece 5 to be welded until the side rod 83 passes the middle section of the workpiece 5 to be welded. The limit hole 85 clamps and limits the weld line of the workpiece 5 to be welded from the top and bottom. The workpiece 5 to be welded is then moved on the placement table 3. After reaching below the welding torch 74, the electric rail 72 drives the welding torch 74 to move to the left. Since the push plate 76 is located on the bottom left side of the welding torch 74, the push plate 76 moves first when the welding torch 74 moves. During the welding process, the push plate 76 moves synchronously, pushing the side rod 83 on the bottom side to move, causing the bracket 81 to move to the left under the limitation of the telescopic rod 82. The setting of the limiting wheel 85 plays a role in maintaining the positional stability of the unwelded parts while welding. The combination of the limiting effect of the telescopic rod 82 and the rolling support of the limiting wheel 85 achieves the desired effect. With the dual functions of pre-adjustment to a steady state before welding and dynamic tracking during welding, the push plate 76 moves first to provide support points for the unwelded parts of the workpiece in advance, avoiding local stress concentration or deformation caused by the movement of the welding torch 74. During welding, the support 81 moves smoothly to the left under the constraint of the telescopic rod 82, and the limiting wheel 85 rolls and fits against the surface of the workpiece, balancing the welding thermal deformation and displacement inertia in real time, ensuring that the unwelded area always maintains a stable position. Welding and stable support are carried out simultaneously, reducing time loss and positional errors caused by segmented operations, and improving the efficiency and quality of long welds or continuous welding.

[0025] Preferably, in one embodiment, such as Figure 5 , Figure 8As shown, a support member 9 is installed inside the positioning hole 35. The support member 9 includes a rod 91, a rubber pad 92, an adjusting tube 93, an adjusting column 94, and a disk 95. The number and installation position of the support members 9 are consistent with those of the positioning hole 35. The rod 91 is inserted into the positioning hole 35. A rubber pad 92 is installed on the top surface of the rod 91. The top surface of the rubber pad 92 is a plastic plate. An adjusting tube 93 is installed in the middle of the top surface of the plastic plate. The inner wall of the adjusting tube 93 is internally threaded. An adjusting column 94 is installed inside the adjusting tube 93 and engages with it. The top surface of 94 is equipped with a disk 95. During operation, the distance between the bottom surface of the workpiece 5 to be welded and the placement platform 3 is measured in advance. Then, the screw-out height of the adjusting column 94 is adjusted with the aid of a vernier caliper to make the distance between the disk 95 and the rubber pad 92 consistent with the distance between the workpiece 5 to be welded and the placement platform 3. Before installing the workpiece 5 to be welded, the support 9 is installed in place. After the workpiece enters, the disk 95 is attracted to the bottom surface of the workpiece 5 to be welded. Since the disk 95 and the positioning hole 35 are positioned at the bottom surface of the workpiece to be welded... On both sides of the welding line of workpiece 5, auxiliary support force is provided on both sides of the welding line of workpiece 5 to be welded during the welding process. After the workpiece is installed, the disk 95 fixes the bottom surface of the workpiece by electromagnetic adsorption. At the same time, its position and the positioning hole 35 are distributed on both sides of the welding line, forming a dual function of "adsorption fixation + double-sided support". The height of the adjusting column 94 is adjustable. With the help of vernier calipers, it is ensured that the gap between the disk 95 and the bottom surface of the workpiece is consistent, avoiding the adsorption being weak due to the gap being too large or the compression deformation caused by the gap being too small. The disk 95 and the positioning hole 35 are located on both sides of the welding line, providing lateral support force during the welding process, suppressing the displacement or deflection of the welding line caused by thermal deformation or stress, and ensuring the quality of the weld formation. The support 9 is pre-adjusted before installation. After the workpiece is in place, it is automatically adsorbed and enters the welding process, reducing manual intervention time and improving production line efficiency. The height of the adjusting column 94 is adjustable to adapt to the assembly requirements of workpieces of different thicknesses. The adsorption fixation of the disk 95 and the support and positioning of the positioning hole 35 are combined to form a multi-dimensional spatial constraint, which is suitable for scenarios that require high flatness welding.

[0026] Working principle of this invention: During operation, the cylinder 6 is activated to move the placement platform 3 within the slide plate 2. By using the placement platform 3 as the moving carrier of the positioning device 4, the workpiece 5 to be welded is placed and removed outside the welding device 7, unaffected by the welding device 7, thus improving the convenience of manual operation. By inserting the connecting block 42 into the positioning groove 32, the screw hole plate 43 abuts against the side wall of the placement platform 3. The positioning plate 41 is fixed and limited by screwing in the fixing bolts into the fixing hole 33 and the screw hole plate 43. By pre-measuring the width of the workpiece 5 to be welded and selecting a suitable... A replaceable plug 45 of varying length is inserted into the positioning plate 41, causing the limiting plate 44 to abut against the left side of the positioning plate 41. A bolt is then screwed between the two to install the replaceable plug 45 at the positioning plate 41, thus achieving precise positioning of the side of the workpiece 5 to be welded. After the workpiece 5 to be welded is inserted into the positioning plate 41, the extrusion rod 47 is inserted into the auxiliary groove 46 according to the different distances between the workpiece 5 to be welded and the inner wall of the positioning plate 41. The extrusion rod 47 can be inserted intermittently on both sides. 1. Semi-circular auxiliary grooves 46 are provided on both side walls, and rubber extrusion rods 47 are used in conjunction. The insertion position and number of extrusion rods 47 can be flexibly adjusted according to the distance between the workpiece 5 to be welded and the inner wall of the positioning plate 41 (such as intermittent insertion on both sides) to achieve adaptive lateral positioning of the workpiece. After the workpiece 5 to be welded is installed, the bracket 81 is manually pushed to retract the telescopic rod 82 into the mounting hole 34, so that the side rod 83 and the limiting wheel 85 move toward the right side of the workpiece 5 to be welded until the side rod 83 passes the middle section of the workpiece 5 to be welded, so that the limiting hole 85 is aligned with the workpiece 5 to be welded. The welding line of part 5 is clamped and limited at the top and bottom. After the placement table 3 moves the workpiece 5 to be welded to below the welding gun 74, the welding gun 74 is moved to the left by the electric rail 72. Since the push plate 76 is located on the bottom left side of the welding gun 74, the push plate 76 moves first when the welding gun 74 moves. During the welding process of the welding gun 74, the push plate 76 moves synchronously to push the side rod 83 on the bottom side to move, so that the bracket 81 moves to the left under the limitation of the telescopic rod 82. The setting of the limiting wheel 85 plays a role in welding while maintaining the positional stability of the unwelded part.

[0027] In this application, the slide plate is fixedly connected to the worktable, and the placement platform is slidably connected to the slide plate. The driving device and welding device are located at both ends of the worktable. The driving device can move the placement platform along the slide plate, allowing it to enter or leave the working area of ​​the welding device. The placement platform serves as the moving carrier for the positioning device, enabling the placement and removal of the workpiece to be welded to be performed outside the welding device, unaffected by the welding device itself, thus improving the convenience of manual operation. The placement platform and positioning device achieve precise positioning of the workpiece to be welded. This effectively avoids the shaking of the workpiece during welding due to its unstable position, ensuring the accuracy of the welding position and improving welding quality. Even under certain external forces during welding, the workpiece can maintain a stable position without shaking or shifting, thereby ensuring the stability and consistency of the welding process.

[0028] In addition, this application also achieves the following effects: (1) With the replacement plugs 45 of different lengths, there is no need to make complex modifications or adjustments to the positioning plate 41. Just replace the replacement plugs 45 of different lengths to adapt to the limiting requirements of workpieces of different widths. This greatly improves the versatility and efficiency of the equipment, reduces production costs, helps to ensure the dimensional accuracy of the welded workpieces, meets the requirements of product design and use, and improves the product qualification rate.

[0029] (2) This invention, by setting semi-circular auxiliary grooves 46 on both sides of the positioning plate 41 and cooperating with rubber extrusion rods 47, allows for flexible adjustment of the insertion position and number of extrusion rods 47 according to the distance between the workpiece 5 to be welded and the inner wall of the positioning plate 41 (e.g., intermittent insertion on both sides), achieving adaptive lateral positioning of the workpiece. After being inserted into the auxiliary grooves 46, the extrusion rods 47 can generate elastic deformation, uniformly conforming to the workpiece surface, filling gaps and forming friction, effectively limiting the lateral displacement and slight shaking of the workpiece during the welding process. This design improves the stability of workpiece fixation without the need for complex mechanical structures, while adapting to the assembly requirements of workpieces of different sizes, reducing the risk of welding errors caused by excessive gaps, and ensuring high precision and high quality of the welding process.

[0030] (3) By setting the limiting wheel 85, the present invention can achieve the dual functions of pre-adjusting the steady state before welding and dynamic following during welding. The push plate 76 moves first to provide support points for the unwelded parts of the workpiece in advance, avoiding local stress concentration or deformation caused by the movement of the welding gun 74. During the welding process, the bracket 81 moves smoothly to the left under the constraint of the telescopic rod 82, and the limiting wheel 85 rolls and fits against the surface of the workpiece, balancing the welding thermal deformation and displacement inertia in real time, ensuring that the unwelded area always maintains a stable position. Welding and stable support are carried out simultaneously, reducing the time loss and position error caused by segmented operation, and improving the efficiency and quality of long welds or continuous welding.

[0031] (4) The disk 95 of the present invention fixes the bottom surface of the workpiece by electromagnetic adsorption. At the same time, its position and the positioning hole 35 are distributed on both sides of the welding line, forming a dual function of "adsorption fixation + double-sided support". The height of the adjusting column 94 is adjustable. With the help of vernier calipers, the gap between the disk 95 and the bottom surface of the workpiece is consistent, avoiding the adsorption failure due to excessive gap or the compression deformation due to insufficient gap. The disk 95 and the positioning hole 35 are located on both sides of the welding line, providing lateral support force during the welding process, suppressing the displacement or deflection of the welding line caused by thermal deformation or stress, and ensuring the quality of weld formation. The support 9 is pre-adjusted before installation. After the workpiece is in place, it is automatically adsorbed and enters the welding process, reducing the time of manual intervention and improving the efficiency of the production line. The height of the adjusting column 94 is adjustable to adapt to the assembly requirements of workpieces of different thicknesses. The adsorption fixation of the disk 95 and the support positioning of the positioning hole 35 are combined to form a multi-dimensional spatial constraint, which is suitable for scenarios that require high flatness welding.

[0032] As one possible implementation, the placement platform 3 includes a mounting base and an auxiliary fixing device 8 for fixing the weld of the workpiece 5 to be welded; a slider 31 is provided at the bottom of the mounting base, the slider 31 is slidably connected to the slide plate 2, a positioning groove 32 is provided at the top of the mounting base, there are multiple sets of positioning grooves 32, which are symmetrically arranged on both sides of the mounting base, and the positioning device 4 is fixedly connected to the positioning groove 32; a mounting hole 34 is provided on the side of the mounting base facing the driving device, and the fixing end of the auxiliary fixing device 8 is fixedly connected to the mounting hole 34.

[0033] The positioning device 4 fixes the workpiece 5 to be welded. The multiple sets of positioning grooves 32 arranged in parallel and symmetrically can be adjusted according to the size of the workpiece 5 to be welded.

[0034] As one possible implementation, the auxiliary fixing device 8 includes a bracket 81, a telescopic rod 82, a side rod 83, and a limiting wheel 85; the bracket 81 includes a vertical rod and a horizontal rod, the horizontal rod is fixedly connected to the vertical rod, the fixed end of the telescopic rod 82 is fixedly connected to the mounting hole 34, the adjusting end of the telescopic rod 82 is fixedly connected to the vertical rod, the side rod 83 is fixedly connected to the vertical rod and is arranged parallel to the horizontal rod, the inner sides of the side rod 83 and the horizontal rod are provided with bearing seats 84 facing each other, the limiting wheel 85 is fixedly connected to the bearing seats 84, and the limiting wheel 85 abuts against the upper and lower surfaces of the workpiece 5 to be welded.

[0035] The limiting wheel 85 of the auxiliary fixing device 8 can tighten and fix the workpiece 5 to be welded from top to bottom, preventing movement of the welding position and ensuring the welding effect.

[0036] As one possible implementation, the placement platform 3 also includes a support member 9, which includes a rod 91, a rubber pad 92, an adjusting tube 93, an adjusting column 94, and a disk 95. The inner side of the positioning groove 32 on the mounting base is provided with multiple sets of positioning holes 35, and the rod 91 is fixedly connected to the positioning holes 35. The adjusting tube 93 is fixedly connected to the rod 91, the rubber pad 92 is fitted on the rod 91 and abuts against the mounting base, the adjusting column 94 is threadedly connected to the adjusting tube 93, and the disk 95 is located at the end of the adjusting column 94 away from the adjusting tube 93, and the disk 95 abuts against the lower surface of the workpiece 5 to be welded.

[0037] The height of the support 9 can be adjusted according to the distance between the workpiece 5 to be welded and the mounting base, providing stable support for the workpiece 5 to be welded.

[0038] As one possible implementation, there are two slide plates 2, which are symmetrically and parallelly arranged on both sides of the workbench 1, and multiple sets of sliders 31 are symmetrically arranged on both sides of the bottom of the mounting base.

[0039] The two sliding plates 2 ensure the stable movement of the placement platform 3.

[0040] As one possible implementation, the positioning device 4 includes a positioning plate 41, a connecting block 42, a replaceable plug 45, and a pull plate 48; the connecting block 42 is fixedly connected to the placement platform 3, and a boss is provided on the top of the connecting block 42. The boss is fixedly connected to the positioning plate 41, and the pull plate 48 is fixed to one end of the connecting block 42. The pull plate 48 is fixedly connected to the placement platform 3 by bolts; a fixing groove is provided on the top of the positioning plate 41, and the end of the positioning plate 41 facing the pull plate 48 is open. The replaceable plug 45 is inserted into the fixing groove through the open and is fixedly connected to the positioning plate 41.

[0041] The replaceable plug 45 is available in various lengths, and the appropriate replaceable plug 45 can be selected for fixing according to the length of the workpiece 5 to be welded. A screw hole plate 43 is provided below the pull plate 48. The screw hole plate 43 has a gap. A fixing hole 33 is provided below the positioning groove 32 on the mounting base. Bolts are installed in the fixing hole 33 to connect the screw hole plate 43 to the mounting base.

[0042] As one possible implementation, the positioning plate 41 also includes an extrusion plate; multiple sets of auxiliary grooves 46 are symmetrically arranged on both sides of the inner wall of the fixing groove, and the extrusion plate is inserted into the auxiliary groove 46 and abuts against the workpiece 5 to be welded.

[0043] The extrusion plate, together with the auxiliary groove 46, is fixed on both sides of the workpiece 5 to be welded, ensuring the stability of the workpiece 5 during welding.

[0044] As one possible implementation, the welding device 7 includes a gantry 71, an electric track 72, an electric actuator 73, and a welding torch 74; the gantry 71 is fixedly connected to the worktable 1, the electric track 72 is fixedly connected to the gantry 71 and is arranged along the movement direction of the placement platform 3, the electric actuator 73 is slidably connected to the electric track 72, the electric actuator 73 is located on the side of the electric track 72 facing the worktable 1, and the welding torch 74 is fixedly connected to the electric actuator 73.

[0045] The electric track 72 and electric push rod 73 are set to drive the welding torch 74 to move along the electric track 72 toward or away from the drive device, thereby realizing the welding of the workpiece 5 to be welded on the placement table 3.

[0046] As one possible implementation, the welding device 7 also includes an operating rod 75 and a push plate 76; one end of the operating rod 75 is fixedly connected to the electric push rod 73, and the push plate 76 is fixedly connected to the other end of the operating rod 75. The operating rod 75 and the push plate 76 are at the same horizontal height as the auxiliary fixing device 8.

[0047] The operating lever 75 and push plate 76 are used in conjunction with the auxiliary fixing device 8. When the drive device pushes the placement table 3 to the welding station of the welding device 7 to start welding, the operating lever 75 and push plate 76 will move towards the drive device under the action of the electric push rod 73. The push plate 76 will abut against the side rod 83 of the auxiliary positioning device 4 and push the side rod 83 to drive the placement direction. The telescopic rod 82 extends, causing the bracket 81 to move to the left under the limit of the telescopic rod 82. The setting of the limit wheel 85 plays a role in welding while maintaining the positional stability of the unwelded parts.

[0048] As one possible implementation, the drive device includes a cylinder 6 and a connecting frame; the cylinder 6 is fixedly connected to the worktable 1, the connecting frame is fixedly connected to the output end of the cylinder 6, and the connecting frame is fixedly connected to the placement platform 3.

[0049] The position of the placement platform 3 on the worktable 1 is adjusted by the cylinder 6 and the connecting frame. When the welding device 7 is in a non-welding position, the workpiece 5 to be welded can be picked up and put down.

[0050] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0051] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A tooling for rapid positioning in laser welding, characterized in that, It includes a worktable, a slide plate, a placement table, a positioning device, a drive device, and a welding device; The slide plate is arranged along the length of the workbench, the placement platform is slidably connected to the slide plate, the positioning device is fixedly connected to the placement platform, the positioning device is arranged along the movement direction of the placement platform, the positioning devices are symmetrically arranged on both sides of the placement platform, and the positioning device is provided with a fixing groove for fixing the workpiece to be welded. The driving device and the welding device are fixedly connected to the worktable. The driving device and the welding device are respectively located at both ends of the worktable. The driving end of the driving device is fixedly connected to the placement platform.

2. The tooling for rapid positioning in laser welding according to claim 1, characterized in that, The placement platform includes a mounting base and an auxiliary fixing device for fixing the weld of the workpiece to be welded. The mounting base is provided with a slider at the bottom, which is slidably connected to the slide plate. The mounting base is provided with a positioning groove at the top. There are multiple sets of positioning grooves, which are symmetrically arranged on both sides of the mounting base. The positioning device is fixedly connected to the positioning groove. The mounting base has a mounting hole on the side facing the driving device, and the fixing end of the auxiliary fixing device is fixedly connected to the mounting hole.

3. The tooling for rapid positioning in laser welding according to claim 2, characterized in that, The auxiliary fixing device includes a bracket, a telescopic rod, a side rod, and a limiting wheel; The bracket includes a vertical rod and a horizontal rod. The horizontal rod is fixedly connected to the vertical rod. The fixed end of the telescopic rod is fixedly connected to the mounting hole. The adjusting end of the telescopic rod is fixedly connected to the vertical rod. The side rod is fixedly connected to the vertical rod and is arranged parallel to the horizontal rod. The inner sides of the side rod and the horizontal rod are provided with bearing seats facing each other. The limiting wheel is fixedly connected to the bearing seat. The limiting wheel abuts against the upper and lower surfaces of the workpiece to be welded.

4. The tooling for rapid positioning in laser welding according to claim 2, characterized in that, The placement platform also includes a support component, which includes a rod, a rubber pad, an adjusting tube, an adjusting column, and a disk. The mounting base has multiple sets of positioning holes on the inner side of the positioning groove, and the insertion rod is fixedly connected to the positioning holes; The adjusting tube is fixedly connected to the insert rod, the rubber pad is fitted on the insert rod and abuts against the mounting base, the adjusting column is threadedly connected to the adjusting tube, the disk is disposed at the end of the adjusting column away from the adjusting tube, and the disk abuts against the lower surface of the workpiece to be welded.

5. The tooling for rapid positioning in laser welding according to claim 2, characterized in that, There are two slide plates, which are symmetrically and parallelly arranged on both sides of the workbench, and there are multiple sets of sliders, which are symmetrically arranged on both sides of the bottom of the mounting base.

6. The tooling for rapid positioning in laser welding according to claim 1, characterized in that, The positioning device includes a positioning plate, a connecting block, a replaceable plug, and a pull plate; The connecting block is fixedly connected to the placement platform. A boss is provided on the top of the connecting block. The boss is fixedly connected to the positioning plate. The pull plate is fixed to one end of the connecting block. The pull plate is fixedly connected to the placement platform by bolts. The fixing groove is located on the top of the positioning plate. The end of the positioning plate facing the pull plate is open. The replaceable plug is inserted into the fixing groove through the open and is fixedly connected to the positioning plate.

7. The tooling for rapid positioning in laser welding according to claim 6, characterized in that, The positioning plate also includes an extrusion plate; Multiple sets of auxiliary grooves are symmetrically arranged on both sides of the inner wall of the fixed groove. The extrusion plate is inserted into the auxiliary groove and abuts against the workpiece to be welded.

8. The tooling for rapid positioning in laser welding according to claim 2, characterized in that, The welding device includes a gantry frame, an electric track, an electric actuator, and a welding torch; The gantry frame is fixedly connected to the workbench, the electric rail is fixedly connected to the gantry frame and is arranged along the movement direction of the placement platform, the electric push rod is slidably connected to the electric rail, the electric push rod is located on the side of the electric rail facing the workbench, and the welding gun is fixedly connected to the electric push rod.

9. The tooling for rapid positioning in laser welding according to claim 8, characterized in that, The welding device also includes an operating lever and a push plate; One end of the operating lever is fixedly connected to the electric push rod, and the push plate is fixedly connected to the other end of the operating lever. The operating lever and the push plate are at the same horizontal height as the auxiliary fixing device.

10. The tooling for rapid positioning in laser welding according to claim 1, characterized in that, The drive device includes a cylinder and a connecting frame; The cylinder is fixedly connected to the worktable, the connecting frame is fixedly connected to the output end of the cylinder, and the connecting frame is fixedly connected to the placement platform.

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