Double-station laser welding equipment
By combining dual-station laser welding equipment with a vision positioning device, the problem of low laser utilization efficiency in single-station laser welding equipment is solved, achieving efficient utilization of the laser and cost reduction.
Patent Information
- Application Number
- CN202423292524.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing laser welding equipment is generally single-head and single-station, which results in low laser utilization efficiency and increased production costs.
Design a dual-station laser welding equipment, which adopts two sets of side-by-side turntable feeding components and moving mechanisms, combined with a vision positioning device, to realize the movement and positioning of the laser between the two welding stations, thereby improving the utilization rate of the laser.
By combining a dual-station design with a vision positioning device, the efficiency of laser utilization is improved, the idle time of laser is reduced, and production costs are lowered.
Smart Images
Figure CN223863041U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to laser welding technical field especially relates to a double position laser welding equipment. BACKGROUND
[0002] Laser welding is a kind of high-efficiency precision welding method using high-energy density laser beam as heat source, because laser welding heat affected zone is small, heating is concentrated rapidly, and thermal stress is low, so it is widely used in electronic industry, especially in microelectronic industry and has been widely used.
[0003] However, laser welding has high requirements on welding position accuracy, and the existing laser welding equipment is generally single-head single-station, which restricts the use efficiency of laser, and the price of laser is high, so the production cost of enterprise is also increased. UTILITY MODEL CONTENT
[0004] To solve the problems in the background art, the utility model aims at providing a double position laser welding equipment to improve the use efficiency of laser and reduce the equipment cost.
[0005] The technical scheme adopted by the double position laser welding equipment provided by the utility model is:
[0006] A double position laser welding equipment, comprising: two groups of parallelly arranged rotary table feeding assemblies, a moving mechanism arranged between the two groups of rotary table feeding assemblies and a laser installed on the moving end of the moving mechanism.
[0007] The rotary table feeding assembly comprises a circular rotary table, and one welding station is arranged at the adjacent position of the two circular rotary tables.
[0008] The two welding stations are within the stroke range of the moving mechanism.
[0009] The laser is connected with a visual positioning device, and the visual positioning device is used to position the laser according to the position of the workpiece on the welding station.
[0010] Further, the moving mechanism comprises a support, an XY moving mechanism installed on the support and a Z-axis adjusting structure, the fixed end of the Z-axis adjusting structure is installed on the moving end of the XY moving mechanism, and the movable end of the Z-axis adjusting structure is used to install the laser.
[0011] Further, a plurality of positioning jigs are installed on the circular rotary table, and the positioning jigs are arranged with a plurality of rows of mounting positions in the diameter direction of the circular rotary table.
[0012] Further, the line connecting the centers of the two circular rotary tables is parallel to the X-axis.
[0013] Furthermore, the Z-axis adjustment structure includes a fixed plate, and a lead screw and slider mechanism is provided between the fixed plate and the laser to drive the laser to move along the Z-axis.
[0014] Furthermore, a limiting fixture that moves along the Z-axis is provided at the welding station. The limiting fixture is used to cooperate with the positioning fixture to clamp the workpiece at the mounting position.
[0015] Furthermore, a fixed mounting shaft is set at the center of the circular turntable, and a Z-axis cylinder is mounted on the mounting shaft. A limit fixture is installed on the moving end of the Z-axis cylinder.
[0016] Furthermore, a loading and unloading station is set up upstream of the welding station on the circular turntable, and a testing station is set up downstream of the welding station.
[0017] Furthermore, the two sets of turntable feeding components are mirror-symmetrically arranged, and the two circular turntables rotate in opposite directions.
[0018] Furthermore, the circular turntable is also equipped with empty workstations, welding workstations, loading and unloading workstations, testing workstations, and empty workstations arranged at 90-degree intervals.
[0019] The beneficial effects of this invention are as follows: A moving mechanism drives a laser to move between two welding stations, and a vision positioning device is used for positioning, enabling one laser to weld workpieces at both stations, thus improving laser utilization and reducing production costs. This invention uses circular turntables for loading and unloading, and positions the welding stations adjacent to the two turntables, reducing the laser's travel distance. By rationally utilizing the time interval between loading on the two turntables, the idle time of the laser is further reduced, improving utilization efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the dual-station laser welding equipment in this embodiment of the present invention;
[0021] Figure 2 This is a schematic diagram of the moving mechanism in an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the circular turntable in an embodiment of this utility model;
[0023] Figure 4 This is a schematic diagram of the installation of the Z-axis adjustment structure in an embodiment of this utility model;
[0024] Figure 5 This is a schematic diagram of the installation of the limiting fixture in an embodiment of this utility model;
[0025] Figure 6 This is a schematic diagram showing the location of each workstation in this embodiment.
[0026] Among them, 1: turntable loading assembly; 2: moving mechanism; 3: laser; 4: circular turntable; 5: vision positioning device; 6: positioning fixture; 7: limit fixture; 8: mounting shaft; 9: testing assembly; 11: welding station; 12: loading and unloading station; 13: testing station; 14: empty station; 21: bracket; 22: XY moving mechanism; 23: Z-axis adjustment structure; 231: fixing plate; 232: lead screw and slider mechanism; 61: mounting position; 71: Z-axis cylinder. Detailed Implementation
[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] It should be noted that all directional indicators such as up, down, left, right, front, back, etc. in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly. The connection can be a direct connection or an indirect connection.
[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0031] like Figure 1 As shown, this is a dual-station laser welding device provided in one embodiment of the present invention. The dual-station laser welding device provided in this embodiment includes: two sets of turntable feeding components 1 arranged side by side, a moving mechanism 2 arranged between the two sets of turntable feeding components 1, and a laser 3 installed on the moving end of the moving mechanism 2.
[0032] The turntable loading assembly 1 is a loading assembly that uses rotation to change workstations. In this embodiment, it includes at least a loading / unloading station 12 and a welding station 11. Loading is performed at the loading / unloading station 12, placing the workpiece to be welded on a rotating component. As the rotating component rotates, the workpiece is moved to the welding station 11, where the laser machine performs welding operations. The two turntable loading assemblies 1 are arranged side-by-side, reducing the distance between the two welding stations 11. The moving mechanism 2 can drive the laser 3 to weld the workpieces at both welding stations 11. The moving mechanism 2 can be any mechanism capable of moving horizontally. The laser 3 can be mounted on the moving end of the moving mechanism 2, and the distance between the laser 3 and the workpiece at the welding station 11 can be adjusted to ensure the laser 3 is focused on the workpiece.
[0033] The turntable feeding assembly 1 includes a circular turntable 4, and a welding station 11 is set at an adjacent position of the two circular turntables 4.
[0034] The bottom of the circular turntable 4 can be equipped with a cam divider or a DD motor, which drives its rotation. Welding stations 11 are located adjacent to the two circular turntables 4. Preferably, the welding stations 11 are located on the line connecting the centers of the two turntables 4. This location minimizes the distance between the two welding stations 11, thereby reducing the stroke of the laser 3 and ensuring that both welding stations 11 are within the stroke range of the moving mechanism 2, guaranteeing that the laser 3 can perform welding operations on the workpieces in both welding stations 11. The turntable loading assembly 1 also includes at least one conveying mechanism for transporting workpieces onto the circular turntable 4.
[0035] The laser 3 is connected to a vision positioning device 5, which is used to position the laser 3 according to the position of the workpiece on the welding station 11.
[0036] The visual positioning device 5 can be any device that uses an industrial camera for positioning. It converts optical signals into electrical signals using CCD or CMOS imaging, then controls the moving mechanism 2 to adjust the position of the laser 3, enabling the laser 3 to accurately weld the workpiece at the welding station 11. Using the visual positioning device 5 reduces the accuracy requirements of the welding station 11 and improves welding quality.
[0037] In this embodiment, a moving mechanism 2 drives a laser 3 to move between two welding stations 11, and a vision positioning device 5 is used for positioning. This allows the laser 3 to weld workpieces at both welding stations 11, improving the utilization rate of the laser 3 and reducing production costs. This embodiment uses a circular turntable 4 for loading, and positions the welding stations 11 adjacent to the two turntables 4. This reduces the moving distance of the laser 3, and by rationally utilizing the time interval between loading from the two turntables 4, the idle time of the laser 3 can be further reduced, improving utilization efficiency.
[0038] like Figure 2 The diagram shown is a schematic diagram of the moving mechanism in this embodiment. In this embodiment, the moving mechanism 2 includes a bracket 21, an XY moving mechanism 22 mounted on the bracket 21, and a Z-axis adjustment structure 23. The fixed end of the Z-axis adjustment structure 23 is mounted on the moving end of the XY moving mechanism 22, and the movable end of the Z-axis adjustment structure 23 is used to mount the laser 3.
[0039] The support 21 is elongated and parallel to the X-axis, allowing the laser 3 to be raised to a higher position. Preferably, the XY movement mechanism 22 includes an X-axis electric cylinder mounted on the support 21 and a Y-axis electric cylinder mounted on the moving end of the X-axis electric cylinder. This structure forms cantilever arms protruding towards the two circular turntables 4, facilitating the suspension of the laser 3 above the two welding stations 11. The Z-axis adjustment structure 23 is used to adjust the position of the laser 3 in the Z-axis direction, facilitating focusing operations. The Z-axis adjustment mechanism is preferably a fine-tuning slide. Mounting the Z-axis adjustment mechanism 23 between the laser 3 and the moving end of the Y-axis electric cylinder makes it lighter and easier to adjust the position of the laser 3 in the Z-axis direction.
[0040] like Figure 3 The diagram shown is a schematic diagram of the structure of the circular turntable in this embodiment. In this embodiment, a number of positioning fixtures 6 are installed on the circular turntable 4, and the positioning fixtures 6 have a number of rows of mounting positions 61 arranged along the diameter direction of the circular turntable 4.
[0041] The positioning fixture 6 can simultaneously support multiple workpieces, thereby improving welding efficiency. Preferably, the positioning fixtures 6 on the circular turntable 4 are arranged symmetrically around the center of the circle, ensuring that any positioning fixture 6 has the same posture when moving to the welding station 11, facilitating welding by the laser 3. Preferably, four positioning fixtures 6 are installed on the circular turntable 4, spaced 90 degrees apart. The mounting positions 61 on the positioning fixtures 6 are preferably arranged in two rows and four columns, with the direction of the rows or columns parallel to one diameter of the circular turntable 4.
[0042] In this embodiment, the line connecting the centers of the two circular turntables 4 is parallel to the X-axis.
[0043] Among them, the line connecting the centers of the two circular turntables 4 is parallel to the X-axis. When the positioning fixture 6 moves to the welding station 11, the rows and columns of the mounting positions 61 on the positioning fixture 6 are parallel to the X-axis and Y-axis respectively, which facilitates the XY moving mechanism 22 to drive the laser 3 to move and position.
[0044] like Figure 4 The diagram shown is an installation schematic of the Z-axis adjustment structure in this embodiment. In this embodiment, the Z-axis adjustment structure 23 includes a fixed plate 231, and a lead screw slider mechanism 232 is provided between the fixed plate 231 and the laser 3 to drive the laser 3 to move along the Z-axis.
[0045] The fixed end of the Z-axis adjustment structure 23 is the end where the fixed plate 231 is located. The lead screw and slider mechanism 232 includes a lead screw nut and two rails. The lead screw is mounted on the fixed plate 231 through bearings, and a turntable handwheel is connected to the top of the lead screw. The movable end of the Z-axis adjustment structure 23 is a slider mounted on the guide rail. The slider is connected to the bracket of the laser 3. The nut of the lead screw and slider mechanism 232 is also mounted on the bracket of the laser, which facilitates the adjustment of the position of the laser 3 in the Z-axis direction by the operator.
[0046] like Figure 5 The diagram shown is a schematic diagram of the installation of the limiting fixture in this embodiment. In this embodiment, a limiting fixture 7 that moves along the Z-axis is provided on the welding station 11. The limiting fixture 7 is used to cooperate with the positioning fixture 6 to clamp the workpiece on the mounting position 61.
[0047] The limiting fixture 7 is used to further position the workpiece and improve the welding accuracy. After the positioning fixture 6 moves to the welding station 11, the limiting fixture 7 cooperates with the positioning fixture 6 from top to bottom to fix the position of the workpiece in the positioning fixture 6 and further position the workpiece.
[0048] In this embodiment, a fixed mounting shaft 8 is provided at the center of the circular turntable 4, and a Z-axis cylinder 71 is mounted on the mounting shaft 8. The limiting fixture 7 is installed at the moving end of the Z-axis cylinder 71.
[0049] The limiting fixture 7 is mounted via the mounting shaft 8, which reduces the space required for installation and does not obstruct the laser 3. The limiting fixture 7 uses the mounting shaft 8 as a positioning reference, improving positioning accuracy. A similar limiting fixture can be installed at the testing station 13, and its drive mechanism can also be mounted on the mounting shaft 8. The pressure plate that cooperates with the positioning fixture 6 can be determined according to the needs of the testing assembly 9.
[0050] like Figure 6 As shown, this is a schematic diagram of the positions of each station in this embodiment. In this embodiment, a loading and unloading station 12 is set upstream of the welding station 11 on the circular turntable 4, and a testing station 13 is set downstream of the welding station 11.
[0051] The loading / unloading station 12 is located upstream of the welding station 11. After loading at the loading / unloading station 12, the positioning fixture 6 rotates along the rotation direction of the circular turntable 4 to the welding station 11 for welding. Then it rotates to the testing station 13 for inspection, and finally rotates back to the loading / unloading station 12 for unloading, simultaneously removing defective workpieces. A recycling box can be placed near the loading / unloading station 12. A material handling assembly can be installed on one side of the loading / unloading station 12, working in conjunction with a tray push-pull assembly and a tray lifting assembly to complete the fully automated loading / unloading process. Figure 6 As shown, a test component 9 is set on one side of the test station 13. The test component 9 can be determined according to the workpiece to be tested, and its installation position is determined according to the volume of the test component 9 and the test method.
[0052] In this embodiment, the two sets of turntable feeding components 1 are mirror-symmetrically arranged, and the two circular turntables 4 rotate in opposite directions.
[0053] Among them, the material handling component on one side of the loading and unloading station 12, together with the material tray push-pull component and the material tray lifting component, and the test component 9 on one side of the test station 13 are also set in a mirror symmetrical manner, making full use of the space around the circular turntable 4 and reducing the footprint of the entire dual-station laser welding equipment.
[0054] In this embodiment, the circular turntable 4 is also provided with an empty station 14, and the welding station 11, the loading and unloading station 12, the testing station 13 and the empty station 14 are arranged at 90-degree intervals.
[0055] The empty station 14 is set between the loading / unloading station 12 and the welding station 11. The empty station 14 can make the stations 90 degrees apart. Four sets of positioning fixtures 6 are set on the circular turntable 4, which can facilitate the arrangement of various components, coordinate the rhythm of the two circular turntables 4, make full use of the laser 3, and improve welding efficiency.
[0056] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. A dual-station laser welding device, characterized in that, It includes: two sets of turntable feeding assemblies (1) arranged side by side, a moving mechanism (2) arranged between the two sets of turntable feeding assemblies (1), and a laser (3) installed on the moving end of the moving mechanism (2); The turntable feeding assembly (1) includes a circular turntable (4), and a welding station (11) is set at an adjacent position of the two circular turntables (4). Both welding stations (11) are within the travel range of the moving mechanism (2); The laser (3) is connected to a visual positioning device (5), which is used to position the laser (3) according to the position of the workpiece on the welding station (11).
2. The dual-station laser welding equipment according to claim 1, characterized in that, The moving mechanism (2) includes a bracket (21), an XY moving mechanism (22) mounted on the bracket (21), and a Z-axis adjustment structure (23); the fixed end of the Z-axis adjustment structure (23) is mounted on the moving end of the XY moving mechanism (22), and the movable end of the Z-axis adjustment structure (23) is used to mount the laser (3).
3. The dual-station laser welding equipment according to claim 2, characterized in that, A plurality of positioning fixtures (6) are installed on the circular turntable (4), and the positioning fixtures (6) have a plurality of rows of mounting positions (61) arranged along the diameter direction of the circular turntable (4).
4. The dual-station laser welding equipment according to claim 2, characterized in that, The line connecting the centers of the two circular turntables (4) is parallel to the X-axis.
5. The dual-station laser welding equipment according to claim 2, characterized in that, The Z-axis adjustment structure (23) includes a fixed plate (231), and a lead screw and slider mechanism (232) is provided between the fixed plate (231) and the laser (3) to drive the laser (3) to move along the Z-axis.
6. The dual-station laser welding equipment according to claim 3, characterized in that, A limiting fixture (7) that moves along the Z-axis is provided on the welding station (11). The limiting fixture (7) is used to cooperate with the positioning fixture (6) to clamp the workpiece on the mounting position (61).
7. The dual-station laser welding equipment according to claim 6, characterized in that, The circular turntable (4) has a fixed mounting shaft (8) at its center, and a Z-axis cylinder (71) is mounted on the mounting shaft (8). The limiting fixture (7) is mounted on the moving end of the Z-axis cylinder (71).
8. The dual-station laser welding equipment according to claim 1, characterized in that, A loading and unloading station (12) is provided upstream of the welding station (11) on the circular turntable (4), and a testing station (13) is provided downstream of the welding station (11).
9. The dual-station laser welding equipment according to claim 8, characterized in that, The two sets of turntable feeding components (1) are mirror-symmetrically arranged, and the two circular turntables (4) rotate in opposite directions.
10. The dual-station laser welding equipment according to claim 8, characterized in that, The circular turntable (4) is also provided with an empty station (14). The welding station (11), the loading and unloading station (12), the testing station (13) and the empty station (14) are arranged at 90-degree intervals.