A laser welding device for metal product production

Abstract

This utility model provides a laser welding device for metal product manufacturing, comprising: a worktable, a movable stage slidably connected to the upper end of the worktable, and a fixed plate fixedly installed on the upper end of the movable stage. This laser welding device for metal product manufacturing, through the arrangement of guide rails, a movable stage, a first sliding groove, a through groove, a fixed plate, a second sliding groove, and a limiting plate, ensures smooth sliding of the movable stage and provides precise lateral positioning through the cooperation of the guide rails and the first sliding groove; the through groove design avoids interference between the workpiece and the movable stage, improving compatibility; the combination of the fixed plate, the second sliding groove, and the limiting plate achieves longitudinal clamping, forming a stable three-dimensional positioning system. This device can quickly switch between positioning workpieces of different specifications, reducing clamping time and lowering debugging costs.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology for metal products, and more specifically, to a laser welding device for the production of metal products. Background Technology

[0002] Laser welding machines, also known as laser welding machines or laser welding machines, are machines used for laser welding in material processing. They use high-energy laser pulses to locally heat a small area of ​​the material. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool. It is a new type of welding method, mainly for welding thin-walled materials, precision parts, and metal products.

[0003] However, existing laser welding equipment has the following problems when in use:

[0004] Traditional welding equipment has a single workpiece clamping and positioning structure, which is difficult to adapt to workpieces of various specifications and shapes, resulting in poor versatility. Frequent fixture changes not only reduce production efficiency but also increase costs. Furthermore, frequent fixture changes involve many manual operations, which are not only labor-intensive but also make it difficult to ensure the consistency of welding parameters, leading to unstable welding quality.

[0005] This invention can accurately position and clamp metal workpieces of different specifications, avoid clamping interference, and achieve stable three-dimensional positioning; it can quickly switch clamps, reduce debugging time, and improve welding efficiency and accuracy. Utility Model Content

[0006] The present invention aims to solve the technical problems mentioned in the background art and provide a laser welding device for the production of metal products.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a laser welding device for metal product manufacturing, comprising: a worktable, a movable stage slidably connected to the upper end of the worktable, a fixed plate fixedly installed on the upper end of the movable stage, a welding stage fixedly installed in the middle of the upper end of the worktable, guide rails fixedly installed on both the front and rear sides of the welding stage, the guide rails being slidably connected to the movable stage, and a limit plate slidably connected to the inner side of the fixed plate.

[0008] A further preferred embodiment: baffles are fixedly installed at both ends of the worktable, and a driving device is fixedly installed inside the baffle and fixedly connected to the moving platform.

[0009] A further preferred embodiment: connecting rods are fixedly installed on both the front and rear sides of the outer end of the mobile platform, and the connecting rods are fixedly connected to the output end of the drive device.

[0010] A further preferred embodiment: the bottom of the mobile platform is provided with a sliding groove on both the front and rear sides, and the sliding groove is slidably connected to the guide rail.

[0011] A further preferred embodiment: a through groove is formed between the two slides, and the depth of the through groove is higher than the height of the welding table.

[0012] A further preferred embodiment: cylinders are fixedly installed on the front and rear sides of the upper end of the fixed plate, and sliding grooves are provided on the front and rear sides of the inner side of the fixed plate, and the sliding grooves are slidably connected to the limiting plate.

[0013] A further preferred embodiment: sliders are fixedly installed on both the front and rear sides of the outer end of the limiting plate, the sliders are slidably connected to the second slide groove, and fixing rods are fixedly installed on both the front and rear sides of the upper end of the limiting plate.

[0014] A further preferred embodiment: the fixing rod is fixedly connected to the cylinder output end.

[0015] Beneficial effects:

[0016] 1. By setting up guide rails, a moving table, and connecting rods, the guide rails cooperate with the sliding grooves at the bottom of the moving table to achieve smooth sliding of the moving table along the welding table, providing precise lateral positioning for the workpiece, ensuring that the two side fixing plates approach the workpiece synchronously, improving clamping accuracy. The connecting rods reliably connect the drive device to the moving table, so that the driving force is evenly transmitted, avoiding the offset problem caused by uneven force on one side, enhancing the stability of the equipment, reducing vibration and jamming during the sliding process, and extending the service life of the equipment. In addition, the setting of guide rails makes the sliding path of the moving table fixed, which facilitates the automated control of the equipment, and can quickly and accurately achieve the positioning and clamping of workpieces of different sizes, improving production efficiency and reducing manual adjustment costs.

[0017] 2. By setting up a sliding groove, a through groove, and a fixed plate, the sliding groove and the guide rail slide together to ensure that the moving table is stable and accurate when positioned laterally, providing a stable support foundation for the workpiece. The depth of the through groove is higher than that of the welding table, which not only prevents the edge of the moving table from scraping the bottom protruding part of the workpiece when it slides, but also provides a space for accommodating workpieces with special shapes. The sliding connection structure between the fixed plate and the limiting plate, together with the cylinder drive, can realize the longitudinal clamping of the workpiece, and can quickly switch to position workpieces of different specifications, reducing clamping time.

[0018] 3. By setting up a second sliding groove and a limiting plate, the precise cooperation between the second sliding groove and the outer slider of the limiting plate provides a stable sliding track for the limiting plate, ensuring that it moves smoothly along the inner side of the fixed plate under the drive of the cylinder. This avoids the skewing or jamming that may occur in traditional clamping methods. This design allows the limiting plate to make precise contact with the workpiece surface and achieve uniform pressure through the pressure control of the cylinder, effectively preventing the workpiece from shifting or deforming during the welding process. At the same time, the guiding effect of the second sliding groove reduces the frictional resistance during the movement of the limiting plate and extends the service life of the equipment.

[0019] 4. In summary, this laser welding device for metal product manufacturing, through the arrangement of guide rails, a moving stage, a first slide, a through slot, a fixed plate, a second slide, and a limiting plate, ensures smooth sliding of the moving stage and provides precise lateral positioning through the cooperation of the guide rails and the first slide. The through slot design avoids interference between the workpiece and the moving stage, improving compatibility. The combination of the fixed plate, the second slide, and the limiting plate achieves longitudinal clamping, forming a stable three-dimensional positioning system. This device can quickly switch between positioning workpieces of different specifications, reducing clamping time and lowering debugging costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of the workbench of this utility model.

[0022] Figure 3 This is a schematic diagram of the limiting clamping structure of this utility model.

[0023] Figure 1-3 In the middle: 1. Workbench; 101. Baffle; 102. Welding table; 103. Guide rail; 2. Moving table; 201. Connecting rod; 202. Slide 1; 203. Through groove; 3. Fixing plate; 301. Cylinder; 302. Slide 2; 303. Limiting plate; 304. Slider; 305. Fixing rod. Detailed Implementation

[0024] The following will refer to the appendix in the embodiments of this utility model. Figures 1-3 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0025] Please see Figure 1-3In this embodiment of the present invention, a laser welding device for metal product manufacturing includes: a worktable 1, a movable stage 2 slidably connected to the upper end of the worktable 1, a fixed plate 3 fixedly installed on the upper end of the movable stage 2, a welding table 102 fixedly installed in the middle of the upper end of the worktable 1, guide rails 103 fixedly installed on the front and rear sides of the welding table 102, the guide rails 103 being slidably connected to the movable stage 2, a limit plate 303 slidably connected to the inner side of the fixed plate 3, baffles 101 fixedly installed at both ends of the worktable 1, a driving device fixedly installed inside the baffles 101 and fixedly connected to the movable stage 2, connecting rods 201 fixedly installed on the front and rear sides of the outer end of the movable stage 2, the connecting rods 201 being fixedly connected to the output end of the driving device, and a sliding groove 202 opened on the front and rear sides of the bottom of the movable stage 2, the sliding groove 202 being slidably connected to the guide rail 103. The metal product to be welded is placed on the welding table 1. On step 02, based on the workpiece size, the moving stage 2 is controlled by the drive device to slide along the guide rail 103, bringing the fixed plate 3 closer to the workpiece. The drive device is then activated, and the drive device drives the moving stage 2 to slide along the guide rail 103 via the connecting rod 201. The sliding groove 202 at the bottom of the moving stage 2 cooperates with the guide rail 103 to achieve sliding. The two moving stages 2 move towards the welding table 102 until the fixed plate 3 approaches the two sides of the workpiece, clamping the left and right sides of the workpiece. Then, the limiting plate 303 is controlled to slide on the inner side of the fixed plate 3, so that it contacts the workpiece and applies appropriate pressure to achieve longitudinal clamping and positioning of the workpiece. After confirming that the workpiece is completely fixed on the welding table 102 without loosening, the external laser welding equipment is activated. The base plate of the external laser welding equipment is fixedly connected to the upper end of the baffle 101. The position of the laser head is adjusted and aligned with the welding area. The laser welding operation is performed on the workpiece according to the preset welding parameters.

[0026] In this embodiment of the utility model, a through groove 203 is provided between the slide grooves 202. The depth of the through groove 203 is higher than the height of the welding table 102. Due to the existence of the through groove 203, when the moving table 2 slides, the edge of the through groove 203 will not scrape the bottom protrusion of the workpiece or the workpiece on the welding table 102. At the same time, the bottom protrusion of the workpiece can be inserted into the through groove 203 to avoid interference between the protrusion and the bottom of the moving table 2.

[0027] In this embodiment of the utility model, cylinders 301 are fixedly installed on the front and rear sides of the upper end of the fixed plate 3. The front and rear sides of the inner side of the fixed plate 3 are provided with sliding grooves 302, which are slidably connected to the limiting plate 303. Slider 304 is fixedly installed on the front and rear sides of the outer end of the limiting plate 303, which is slidably connected to the sliding grooves 302. Fixing rods 305 are fixedly installed on the front and rear sides of the upper end of the limiting plate 303, which are fixedly connected to the output end of the cylinder 301. After confirming that the lateral positioning is completed, the cylinder 301 is started. The output end of the cylinder 301 drives the limiting plate 303 to slide along the sliding grooves 302 through the fixing rods 305. Since the slider 304 on the limiting plate 303 cooperates with the sliding grooves 302, the limiting plate 303 moves smoothly. As the cylinder 301 extends and retracts, the limiting plate 303 gradually contacts the workpiece and applies pressure.

[0028] Working principle: First, gently place the workpiece at the center of the welding table 102. If the workpiece has a protruding structure at the bottom, align it with the through groove 203. Activate the drive device (such as a cylinder) inside the baffle 101. The drive device, through the connecting rod 201, drives the two moving tables 2 to move synchronously along the guide rail 103 towards the welding table 102. During the movement, due to the presence of the through groove 203, the edge of the through groove 203 will not scrape the protruding part at the bottom of the workpiece or the workpiece on the welding table 102 when the moving table 2 slides. At the same time, it allows the protruding part at the bottom of the workpiece to extend into the through groove 203, avoiding interference between the protruding part and the bottom of the moving table 2, thus confirming that the lateral positioning is correct. Then, the two sets of cylinders 301 on the fixed plate 3 are started simultaneously. The output end of the cylinder 301 pushes the limiting plate 303 through the fixed rod 305. The slider 304 slides smoothly in the second slide groove 302. When the limiting plate 303 contacts the surface of the workpiece, it applies pressure to the surface of the workpiece, so that it is subjected to a downward clamping force, thereby realizing the longitudinal clamping and positioning of the workpiece. After confirming that the workpiece is completely fixed on the welding table 102 without loosening, the external laser welding equipment is started. The base plate of the external laser welding equipment is fixedly connected to the upper end of the baffle 101. The position of the laser head is adjusted and aligned with the welding part. The laser welding operation is performed on the workpiece according to the preset welding parameters.

Claims

1. A laser welding apparatus for manufacturing metal products, comprising: A workbench (1) is provided, wherein a movable stage (2) is slidably connected to the upper end of the workbench (1), and a fixed plate (3) is fixedly installed on the upper end of the movable stage (2). The workbench (1) is characterized in that a welding stage (102) is fixedly installed in the middle of the upper end of the workbench (1), and guide rails (103) are fixedly installed on the front and rear sides of the welding stage (102). The guide rails (103) are slidably connected to the movable stage (2), and a limit plate (303) is slidably connected to the inner side of the fixed plate (3).

2. The laser welding apparatus for metal product manufacturing according to claim 1, characterized in that: Both ends of the workbench (1) are fixedly installed with baffles (101), and a drive device is fixedly installed inside the baffles (101) and fixedly connected to the moving platform (2).

3. The laser welding apparatus for metal product manufacturing according to claim 2, characterized in that: The mobile platform (2) has connecting rods (201) fixedly installed on both the front and rear sides of its outer end, and the connecting rods (201) are fixedly connected to the output end of the drive device.

4. The laser welding apparatus for metal product manufacturing according to claim 1, characterized in that: The bottom of the mobile platform (2) is provided with a sliding groove (202) on both the front and rear sides, and the sliding groove (202) is slidably connected to the guide rail (103).

5. The laser welding apparatus for metal product manufacturing according to claim 4, characterized in that: A through groove (203) is provided between the slides (202), and the depth of the through groove (203) is higher than the height of the welding table (102).

6. The laser welding apparatus for metal product manufacturing according to claim 1, characterized in that: The upper end of the fixed plate (3) is fixedly installed with cylinders (301) on both the front and rear sides. The inner side of the fixed plate (3) is provided with sliding grooves (302) on both the front and rear sides. The sliding grooves (302) are slidably connected to the limiting plate (303).

7. The laser welding apparatus for metal product manufacturing according to claim 6, characterized in that: The limiting plate (303) has a slider (304) fixedly installed on both the front and rear sides of its outer end. The slider (304) is slidably connected to the slide groove (302). The limiting plate (303) has a fixing rod (305) fixedly installed on both the front and rear sides of its upper end.

8. The laser welding apparatus for metal product manufacturing according to claim 7, characterized in that: The fixing rod (305) is fixedly connected to the output end of the cylinder (301).

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