Non-stop laser welding material connecting device for coiled material processing

Abstract

The utility model relates to a kind of reel processing non-stop laser welding material connecting device, including the double-layer unwinding machine for unwinding upper roll material and lower roll material;It further includes laser material connecting welding machine located in the side of double-layer unwinding machine, and laser material connecting welding machine includes welding frame, first multi-axis servo transfer mechanism, double-layer material pulling clamp mechanism, second multi-axis servo transfer mechanism, laser galvanometer welding assembly, laser welding pressing platform assembly, tail cutting assembly and tail positive and negative rotation material pulling assembly.The whole material connecting process of the utility model, from tail cutting, head and tail alignment to laser welding, is all automatically completed, material connects fast, welding firm, greatly improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of coil processing, and in particular to a non-stop laser welding splicing device for coil processing. Background Technology

[0002] In a roll material processing production line, when a roll of material is used up, the beginning of a new roll needs to be connected to the end of the old roll to ensure production continuity. Currently, the common method is to manually attach the material using tape. This method has the following significant drawbacks:

[0003] Low bonding strength: The joint strength of the tape bond is much lower than that of the material itself, making it very easy to break during subsequent high-speed stretching production, leading to downtime.

[0004] Poor alignment accuracy: Relying on manual visual alignment makes it difficult to guarantee the precise alignment of the material head and tail, which can lead to misalignment, wrinkles, and other problems, seriously affecting product quality.

[0005] Low efficiency: Manual operation is time-consuming, which affects overall production efficiency.

[0006] Poor adaptability: The tape does not adhere well to certain special surfaces (such as smooth or coated materials) and has poor reliability.

[0007] Although some automated material receiving equipment has emerged in existing technologies, they often suffer from problems such as complex structure, inaccurate positioning, inability to effectively control material tension, or unstable welding quality. For example, some equipment lacks a high-precision vision positioning system, leading to docking deviations; others lack integrated cutting and pulling mechanisms, resulting in discontinuous processes.

[0008] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a non-stop laser welding splicing device for coil processing, making it more valuable for industrial applications. Utility Model Content

[0009] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a laser welding splicing device for non-stop coil processing.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A non-stop laser welding splicing device for coil processing, including a double-layer unwinding machine for unwinding the upper and lower coils;

[0012] It also includes a laser welding machine located on one side of the double-layer unwinding machine. The laser welding machine includes a welding frame, a first multi-axis servo transfer mechanism, a double-layer material pulling clamp mechanism, a second multi-axis servo transfer mechanism, a laser galvanometer welding assembly, a laser welding pressing platform assembly, a material tail cutting assembly, and a material tail forward and reverse reversing material pulling assembly.

[0013] A first multi-axis servo transfer mechanism and a second multi-axis servo transfer mechanism are installed sequentially along the front-back direction on the welding frame. A double-layer material pulling clamp mechanism is installed on the first multi-axis servo transfer mechanism, and a laser galvanometer welding assembly is installed on the second multi-axis servo transfer mechanism.

[0014] On the right side of the welding frame, from left to right, there are a first bracket and a second bracket. The laser welding pressing platform assembly is installed on the first bracket, and the tail cutting assembly and the tail forward and reverse pulling assembly are installed on the second bracket from left to right.

[0015] As a further improvement of this utility model, a material head trimming machine for trimming the ends of the upper and lower coils is installed in the middle of the double-layer unwinding machine.

[0016] As a further improvement of this utility model, the material head cutting machine is a manual material head cutting device.

[0017] As a further improvement of this utility model, a production line connection device adapted to it is also provided on the right side of the laser welding machine.

[0018] As a further improvement of this utility model, a laser vision component is also installed on one side of the laser galvanometer welding assembly.

[0019] As a further improvement of this utility model, the double-layer material pulling clamp mechanism includes an upper material pulling clamp, a middle clamping plate and a lower material pulling clamp from top to bottom. The upper material pulling clamp and the lower material pulling clamp move toward or away from the middle clamping plate under the drive of the material pulling cylinder, thereby realizing the material pulling processing of the upper roll material and the lower roll material respectively.

[0020] As a further improvement of this utility model, the laser welding pressing platform assembly includes a light-transmitting hole pressure plate and a lower pressure plate from top to bottom. Several light-transmitting holes are evenly opened on the light-transmitting hole pressure plate along the front-back direction, and the light-transmitting hole pressure plate moves toward or away from the lower pressure plate under the drive of the welding pressing cylinder.

[0021] As a further improvement of this utility model, the material tail forward and reverse rotation pulling assembly includes a material tail forward and reverse rotation pulling servo motor and a pulling roller connected to the material tail forward and reverse rotation pulling servo motor.

[0022] As a further improvement of this utility model, a guide roller module is provided between the double-layer unwinding machine and the laser splicing welding machine to guide and press the upper and lower coil materials respectively.

[0023] By means of the above solution, this utility model has at least the following advantages:

[0024] The entire material receiving process of this utility model, from material tail cutting, material head and tail alignment to laser welding, is completed automatically. The material receiving is fast and the welding is firm, which greatly improves production efficiency.

[0025] This invention achieves precise alignment between the material head and tail by combining machine vision with a multi-axis servo system, thus avoiding misalignment and wrinkles.

[0026] This utility model has a wide range of applications and can also be applied to various laser-weldable metals and some non-metallic coils, such as stainless steel, carbon steel, aluminum alloys, and polymer composite materials.

[0027] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a non-stop laser welding splicing device for coil material processing according to this utility model;

[0030] Figure 2 yes Figure 1 A partial structural diagram of a laser splicing welding machine;

[0031] Figure 3 This is a schematic diagram of the initial operation of this utility model;

[0032] Figure 4 This is a schematic diagram of the cutting of the upper roll material according to this utility model;

[0033] Figure 5 This is a schematic diagram of the present invention when taking a visual photograph of the cut-off tail of the upper roll material;

[0034] Figure 6 This is a schematic diagram illustrating the splicing of the lower and upper roll materials according to this utility model.

[0035] Figure 7 This is a schematic diagram of the upper roll material re-entering the receiving section of this utility model.

[0036] The meanings of the labels in the figures are as follows.

[0037] 1. Double-layer unwinding machine; 2. Upper coil; 3. Lower coil; 4. Material head cutting and flattening machine; 5. Laser splicing and welding machine; 6. Production line connection equipment; 7. Welding frame; 8. First multi-axis servo transfer mechanism; 9. Double-layer material pulling clamp mechanism; 10. Second multi-axis servo transfer mechanism; 11. Laser galvanometer welding assembly; 12. Laser vision assembly; 13. First support; 14. Second support; 15. Laser welding pressing platform assembly; 16. Material tail cutting assembly; 17. Material tail forward and reverse pulling assembly; 18. Light-transmitting hole pressure plate. Detailed Implementation

[0038] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0039] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] The first embodiment of this utility model:

[0041] like Figures 1 to 7 As shown in this embodiment, a non-stop laser welding splicing device for coil processing includes a double-layer unwinding machine 1 for unwinding an upper coil 2 and a lower coil 3. A head trimming machine 4, a manual head trimming device, is installed in the middle of the double-layer unwinding machine 1 to trim the ends of the upper coil 2 and the lower coil 3. Furthermore, a production line connection device 6 adapted to the laser splicing welding machine 5 is also provided on the right side of the laser splicing welding machine 5.

[0042] The laser splicing welding machine 5, located on one side of the double-layer unwinding machine 1, is the core of this embodiment. The laser splicing welding machine integrates automated material transfer, positioning, cutting, pressing and welding functional modules.

[0043] Specifically, the laser welding machine 5 includes a welding frame 7, a first multi-axis servo transfer mechanism 8, a double-layer material pulling clamp mechanism 9, a second multi-axis servo transfer mechanism 10, a laser galvanometer welding assembly 11, a laser welding pressing platform assembly 15, a material tail cutting assembly 16, and a material tail forward and reverse reversing material pulling assembly 17.

[0044] A first multi-axis servo transfer mechanism 8 and a second multi-axis servo transfer mechanism 10 are sequentially installed on the welding frame 7 along the front-to-back direction. A double-layer material pulling clamp mechanism 9 is installed on the first multi-axis servo transfer mechanism 8, and a laser galvanometer welding assembly 11 is installed on the second multi-axis servo transfer mechanism 10. A laser vision assembly 12 is also installed on one side of the laser galvanometer welding assembly 11.

[0045] The double-layer material pulling mechanism 9 includes an upper material pulling clamp, a middle clamping plate, and a lower material pulling clamp from top to bottom. The upper and lower material pulling clamps move toward or away from the middle clamping plate under the drive of the material pulling cylinder, thereby realizing the material pulling processing of the upper coil 2 and the lower coil 3 respectively.

[0046] On the right side of the welding frame 7, from left to right, a first bracket 13 and a second bracket 14 are installed sequentially. A laser welding pressing platform assembly 15 is installed on the first bracket 13, and a material tail cutting assembly 16 and a material tail forward and reverse pulling assembly 17 are installed sequentially from left to right on the second bracket 14.

[0047] The laser welding pressing platform assembly 15 includes a light-transmitting hole pressure plate 18 and a lower pressure plate from top to bottom. Several light-transmitting holes are evenly opened on the light-transmitting hole pressure plate 18 along the front-back direction, and the light-transmitting hole pressure plate 18 moves toward or away from the lower pressure plate under the drive of the welding pressing cylinder.

[0048] The material tail forward and reverse rotation pulling assembly 17 includes a material tail forward and reverse rotation pulling servo motor and a pulling roller connected to the material tail forward and reverse rotation pulling servo motor.

[0049] A guide roller module is provided between the double-layer unwinding machine 1 and the laser splicing and welding machine 5 to guide and press the upper coil 2 and the lower coil 3 respectively.

[0050] The core technical innovation of this embodiment lies in:

[0051] Modular layout: The welding frame is equipped with a first multi-axis servo transfer mechanism and a second multi-axis servo transfer mechanism from front to back, which drive the double-layer material pulling clamp mechanism and the laser galvanometer welding assembly respectively. This realizes the separation and coordination of material handling and welding execution, with a reasonable layout and no interference between the actions.

[0052] Integrated processing unit: The laser welding pressing platform assembly, the material tail cutting assembly, and the material tail forward and reverse pulling assembly are centrally located on the right side of the frame. These three components together form the workflow for receiving, positioning, and preparing old coil material tails, which is compact and highly efficient.

[0053] Precise clamping and guiding: The double-layer material pulling clamping mechanism adopts an upper and lower layered design, independently controlled by a material pulling cylinder. It can clamp the material heads of the upper and lower coils simultaneously or separately, and accurately feed the material through a multi-axis servo transfer mechanism. In addition, the guide roller module set between the double-layer unwinding machine and the laser splicing welding machine can effectively guide and tension the upper and lower coils, prevent deviation, and ensure that the material maintains flatness and stable tension when entering the splicing station.

[0054] Advanced vision welding system: The laser welding pressing platform component adopts a pressing plate design with light-transmitting holes. Combined with the laser vision component, it can perform visual positioning and laser welding while pressing, realizing the integration of positioning, pressing and welding, which greatly improves the docking accuracy and welding quality.

[0055] The second embodiment of this utility model:

[0056] like Figures 1 to 7 As shown in this embodiment, a non-stop laser welding splicing device for coil processing includes a double-layer unwinding machine 1 for carrying the upper coil 2 currently in use and the lower coil 3 as a spare. A manual end trimmer 4 is provided at the outlet of the unwinding machine for neatly trimming the end of the new coil.

[0057] The core of the device is the laser welding machine 5. On its welding frame 7, the first multi-axis servo transfer mechanism 8 (a three-axis XYZ system) is responsible for driving the double-layer material pulling clamp mechanism 9 to move precisely in three-dimensional space. The upper and lower material pulling clamps of this clamp mechanism can operate independently, respectively clamping the material heads of the upper and lower coils. The second multi-axis servo transfer mechanism 10 is used to drive the laser galvanometer welding assembly 11, enabling it to be quickly positioned to the welding position.

[0058] On the right side of the frame, a laser welding pressing platform assembly 15 is mounted via a first bracket 13. (Example) Figure 3 As shown, the light-transmitting pressure plate 18 can move downward under the drive of a cylinder, tightly pressing the material head and tail together. The light-transmitting holes on the pressure plate are used for both the imaging and positioning of the laser vision component 12 and for the laser beam to pass through for welding. On the adjacent second bracket 14, the material tail cutting component 16 (using a servo cylinder-driven shearing blade) and the material tail forward and reverse pulling component 17 (servo motor-driven pulling roller) are arranged in sequence, responsible for accurately cutting and conveying the incoming upper coil material tail.

[0059] A brief description of the working process in this embodiment:

[0060] The initial working state of this equipment is as follows: Figure 3 As shown. The upper roll of material is produced normally. The lower roll of material 3 is cut flat by the material head cutting machine 4, inserted into the lower layer of the double-layer material pulling clamping mechanism 9, and the material head is exposed and clamped, entering the waiting state.

[0061] When the remaining length of the upper coil material is used, it is cut off by the material tail cutting component 16. The upper layer of the double-layer unwinding machine 1 is reversed to clear the upper layer material on the laser galvanometer welding component 11. At this time, the state is as follows: Figure 4 As shown.

[0062] The reverse feeding assembly 17 reverses the material tail and feeds it into the laser welding and pressing platform assembly 15. The laser vision assembly 12 takes pictures of the material tail and positions it through the light-transmitting holes on the light-transmitting pressure plate 18. The state at this time is as follows: Figure 5 As shown.

[0063] The first multi-axis servo transfer mechanism 8 drives the double-layer material clamping mechanism 9 to feed the lower coil material 3 into the laser galvanometer welding assembly 11. The laser vision assembly 12 performs image compensation positioning of the material head through the light-transmitting hole on the light-transmitting hole pressure plate 18. After positioning, the light-transmitting hole pressure plate 18 of the laser welding pressing platform assembly 15 descends to press the material tail head, and the laser galvanometer welding assembly 11 performs laser welding processing on the material head and tail through the light-transmitting hole on the light-transmitting hole pressure plate 18. The state at this time is as follows. Figure 6 As shown.

[0064] The double-layer material clamping mechanism 9 releases its two layers, and the lower coil 3 enters the working state. The first multi-axis servo transfer mechanism 8 moves to the left to its initial position. The upper coil 2's material head is cut flat by the material head flattening machine 4, inserted into the upper layer of the double-layer material clamping mechanism 9, and clamped, entering the waiting-to-receive state. The state at this time is as follows: Figure 7 As shown.

[0065] This completes one automated welding and material receiving process.

[0066] The entire material receiving process, from material tail cutting and head-to-tail alignment to laser welding, is fully automated, resulting in rapid material receiving and strong welds, significantly improving production efficiency. Through the collaboration of machine vision and a multi-axis servo system, precise alignment of the material head and tail is achieved, preventing misalignment and wrinkles. It has a wide range of applications and can be used on various laser-weldable metals and some non-metallic coils, such as stainless steel, carbon steel, aluminum alloys, and polymer composite materials.

[0067] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0068] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0069] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A non-stop laser welding splicing device for coil processing, including a double-layer unwinding machine (1) for unwinding the upper coil (2) and the lower coil (3); Its features are: It also includes a laser welding machine (5) located on one side of the double-layer unwinding machine (1), the laser welding machine (5) including a welding frame (7), a first multi-axis servo transfer mechanism (8), a double-layer material pulling clamp mechanism (9), a second multi-axis servo transfer mechanism (10), a laser galvanometer welding assembly (11), a laser welding pressing platform assembly (15), a material tail cutting assembly (16), and a material tail forward and reverse reversing material pulling assembly (17); A first multi-axis servo transfer mechanism (8) and a second multi-axis servo transfer mechanism (10) are sequentially installed on the welding frame (7) along the front-back direction. A double-layer material pulling clamp mechanism (9) is installed on the first multi-axis servo transfer mechanism (8), and a laser galvanometer welding assembly (11) is installed on the second multi-axis servo transfer mechanism (10). A first bracket (13) and a second bracket (14) are installed sequentially from left to right on the right side of the welding frame (7). A laser welding pressing platform assembly (15) is installed on the first bracket (13), and a material tail cutting assembly (16) and a material tail forward and reverse pulling assembly (17) are installed sequentially from left to right on the second bracket (14).

2. The non-stop laser welding splicing device for coil processing as described in claim 1, characterized in that, A material head trimmer (4) for trimming the ends of the upper roll (2) and the lower roll (3) is installed in the middle of the double-layer unwinding machine (1).

3. The non-stop laser welding splicing device for coil processing as described in claim 2, characterized in that, The material head cutting machine (4) is a manual material head cutting device.

4. The non-stop laser welding splicing device for coil processing as described in claim 1, characterized in that, On the right side of the laser welding machine (5), there is also a production line connection device (6) adapted to it.

5. The non-stop laser welding splicing device for coil processing as described in claim 1, characterized in that, A laser vision component (12) is also installed on one side of the laser galvanometer welding assembly (11).

6. The non-stop laser welding splicing device for coil processing as described in claim 1, characterized in that, The double-layer material pulling clamp mechanism (9) includes an upper material pulling clamp, a middle clamping plate and a lower material pulling clamp from top to bottom. The upper material pulling clamp and the lower material pulling clamp move toward or away from the middle clamping plate under the drive of the material pulling cylinder, thereby realizing the material pulling processing of the upper roll material (2) and the lower roll material (3) respectively.

7. The non-stop laser welding splicing device for coil processing as described in claim 1, characterized in that, The laser welding pressing platform assembly (15) includes a light-transmitting hole pressure plate (18) and a lower pressure plate from top to bottom. Several light-transmitting holes are evenly opened on the light-transmitting hole pressure plate (18) along the front-back direction. The light-transmitting hole pressure plate (18) moves toward or away from the lower pressure plate under the drive of the welding pressing cylinder.

8. The non-stop laser welding splicing device for coil processing as described in claim 1, characterized in that, The material tail forward and reverse rotation pulling assembly (17) includes a material tail forward and reverse rotation pulling servo motor and a pulling roller connected to the material tail forward and reverse rotation pulling servo motor.

9. The non-stop laser welding splicing device for coil processing as described in claim 1, characterized in that, A guide roller module is provided between the double-layer unwinding machine (1) and the laser splicing welding machine (5) to guide and press the upper roll material (2) and the lower roll material (3) respectively.

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