Laser linear cutting and welding all-in-one machine and cutting and welding method thereof

Abstract

The invention discloses a laser linear cutting and welding all-in-one machine and a cutting and welding method thereof.The laser linear cutting and welding all-in-one machine comprises a rack, a cutting and welding device arranged on the rack and a pressing device arranged on the rack, the pressing device comprises a fixed pressing frame arranged on one side of the rack and a movable pressing frame arranged on the other side of the rack in a sliding mode, and the fixed pressing frame and the movable pressing frame are arranged in an aligned mode; the movable pressing frame can be far away from or close to the fixed pressing frame, the material pressing device further comprises a rotating pressing frame rotationally arranged on the rack, and when the movable pressing frame is far away from the fixed pressing frame, the rotating pressing frame rotates to the position between the movable pressing frame and the fixed pressing frame. Through cooperation of the fixed pressing frame, the movable pressing frame and the cutting and welding device, defect cutting treatment and steel coil butt welding can be completed without manual intervention, the steel coil cutting and welding device can be directly placed in front of a punching machine during use, the downtime of a production line is shortened, the production efficiency is greatly improved, defects of punched products are reduced, manual operation links are omitted, and the labor cost is reduced. And the high-efficiency and accurate production requirements of high-speed continuous punching are met.

Description

Technical Field

[0001] This invention relates to a laser linear cutting and welding integrated machine and its cutting and welding method. Background Technology

[0002] In high-speed continuous stamping production, steel coils are usually supplied as raw materials in coil form and are gradually unwound and fed into the stamping equipment by an uncoiler.

[0003] However, during transportation or storage, some sections of steel coils are prone to oxidation, deformation, or surface roughness due to environmental factors, collisions, and compression. If these are directly sent to the stamping process, it will lead to insufficient precision of the stamped products and an increase in surface defects, which will seriously affect product quality.

[0004] The existing processing methods mostly involve manually identifying defective sections, cutting and removing them separately, and then manually welding the two ends of the steel coil. This process requires stopping the machine and removing all the steel coils, which not only interrupts continuous production and reduces efficiency, but also makes it difficult to ensure the alignment accuracy of the ends by manual docking, resulting in unstable welding quality. In addition, it increases labor costs and production time, which cannot meet the high-efficiency and precise production requirements of high-speed stamping production lines.

[0005] Therefore, there is a market demand for a laser linear cutting and welding integrated machine and its cutting and welding method that can ensure accurate port alignment, can both cut and weld, ensure continuous production, and reduce downtime. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a laser linear cutting and welding integrated machine.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a laser linear cutting and welding integrated machine, including a frame, a cutting and welding device disposed on the frame, and a pressing device disposed on the frame. The pressing device includes a fixed pressing frame disposed on one side of the frame and a movable pressing frame slidably disposed on the other side of the frame. The fixed pressing frame and the movable pressing frame are aligned, and the movable pressing frame can move away from and closer to the fixed pressing frame. The pressing device also includes a rotating pressing frame rotatably disposed on the frame. When the movable pressing frame moves away from the fixed pressing frame, the rotating pressing frame rotates to a position between the movable pressing frame and the fixed pressing frame. Through the cooperation of the fixed pressing frame, the movable pressing frame, and the cutting and welding device, defect cutting and butt welding of steel coils can be completed without manual intervention. During use, it can be directly placed in front of the stamping machine, reducing production line downtime, significantly improving production efficiency, reducing stamping product defects, eliminating manual operation, reducing labor costs, and meeting the high-efficiency and precise production requirements of high-speed continuous stamping.

[0008] In some embodiments, the fixed pressure frame includes a fixed support plate fixed to the frame and a fixed pressure plate that is movable up and down and disposed directly above the fixed support plate, forming a first working space for the feeding sheet to enter between the fixed support plate and the fixed pressure plate.

[0009] In some embodiments, the movable pressure frame includes a movable tray slidably disposed on the frame and a movable pressure plate disposed directly above the movable tray, wherein the movable tray and the movable pressure plate form a second working space for the feeding sheet to enter.

[0010] In some implementations, the first workspace is aligned with the second workspace.

[0011] In some embodiments, the cutting and welding device includes a guide rail disposed on the fixed pressure frame and a welding torch that can both cut and weld, slidably disposed on the guide rail.

[0012] In some embodiments, the length direction of the guide rail is consistent with the length direction of the fixed pressure frame, the welding torch is slidable along the length direction of the fixed pressure frame, and the welding head of the welding torch is located directly above the edge of the fixed pressure frame.

[0013] In some embodiments, the rotating press frame includes a rotating shaft parallel to the length direction of the movable press frame, a rotating connecting plate rotatably mounted on one side of the rotating shaft, a rotating support plate fixed to the other side of the rotating connecting plate, and a rotating pressure plate fixed to the rotating support plate, wherein there is a gap space between the rotating support plate and the rotating pressure plate for accommodating the material sheet.

[0014] In some embodiments, the rotating pressure frame has a folded state and an operating state. When the movable pressure frame is close to the fixed pressure frame, the rotating pressure frame is in the folded state and is rotatably positioned below the movable pressure frame and the fixed pressure frame. When the movable pressure frame is away from the fixed pressure frame, the rotating pressure frame is in the operating state and is rotatably positioned between the movable pressure frame and the fixed pressure frame, and is flush with both of them.

[0015] In some embodiments, when the rotating pressure frame is in operation, the gap space, the first working space, and the second working space are arranged flush with each other.

[0016] The technical problem to be solved by the present invention is to provide a cutting and welding method for a laser linear cutting and welding integrated machine.

[0017] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a cutting and welding method using a laser linear cutting and welding integrated machine, comprising the following specific steps: Step S1, the material sheet to be cut and re-welded is placed between the pressing devices, and the material sheet is pressed onto the machine frame by the fixed pressing frame and the movable pressing frame. At this time, the movable pressing frame is close to the fixed pressing frame, and a weld bead is formed between the movable pressing frame and the fixed pressing frame. The cutting and welding device is aligned with the weld bead to perform the first cut on the material sheet; Step S2, after the first cut is completed, the movable pressing frame moves away from the fixed pressing frame. Simultaneously, the rotating pressure frame rotates to a position between the moving pressure frame and the fixed pressure frame, loosens the fixed pressure frame, and pushes the material sheet inside towards the rotating pressure frame to the head, pressing the fixed pressure frame. The material sheet is then cut a second time at the weld bead position in step S1. In step S3, after the second cut is completed, the cut-off waste material is removed, the moving pressure frame moves closer to the fixed pressure frame, and simultaneously, the rotating pressure frame rotates to a position below the moving pressure frame and the fixed pressure frame. The cutting and welding device mode is switched, and the weld bead position is aligned to weld the material sheets on both sides.

[0018] The scope of this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.

[0019] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: The present invention provides a laser linear cutting and welding integrated machine and its cutting and welding method. Through the cooperation of a fixed pressure frame, a movable pressure frame and a cutting and welding device, it can complete the defect cutting and welding of steel coils without manual intervention. When in use, it can be placed directly in front of the stamping machine, reducing production line downtime, greatly improving production efficiency, reducing stamping product defects, eliminating manual operation links, reducing labor costs, and meeting the high-efficiency and precise production needs of high-speed continuous stamping. Attached Figure Description

[0020] Appendix Figure 1 A schematic diagram of the three-dimensional structure of a laser linear cutting and welding integrated machine; Appendix Figure 2 Top view of the laser linear cutting and welding integrated machine; Appendix Figure 3 A schematic diagram of the structure where the movable pressure frame approaches the fixed pressure frame; Appendix Figure 4 A schematic diagram of a movable pressure frame moving away from a fixed pressure frame; The components are: 1. Frame; 2. Welding device; 21. Guide rail; 22. Welding gun; 3. Fixed pressure frame; 31. Fixed support plate; 32. Fixed pressure plate; 4. Moving pressure frame; 41. Moving support plate; 42. Moving pressure plate; 5. Rotating pressure frame; 51. Rotating pressure plate. Detailed Implementation

[0021] like Figure 1-2 The laser linear cutting and welding integrated machine shown includes a frame 1, a cutting and welding device 2 disposed on the frame 1, and a pressing device disposed on the frame 1. In this embodiment, it also includes a slide rail disposed at the bottom of the frame 1. The entire equipment is slidably disposed on the slide rail and can be moved to the corresponding position as needed.

[0022] like Figure 1 As shown, the pressing device includes a fixed pressing frame 3 disposed on one side of the frame 1 and a movable pressing frame 4 slidably disposed on the other side of the frame 1. The fixed pressing frame 3 and the movable pressing frame 4 are always aligned, and the movable pressing frame 4 can move away from or closer to the fixed pressing frame 3.

[0023] like Figure 3 -like Figure 4 As shown, the fixed pressure frame 3 includes a fixed support plate 31 fixed on the frame 1 and a fixed pressure plate 32 that can move up and down and is disposed directly above the fixed support plate 31. The fixed support plate 31 and the fixed pressure plate 32 form a first working space for the feeding sheet to enter.

[0024] The movable pressure frame 4 includes a movable tray 41 slidably disposed on the frame 1 and a movable pressure plate 42 that can move up and down and is disposed directly above the movable tray 41. A second working space for feeding sheet entry is formed between the movable tray 41 and the movable pressure plate 42. The first working space and the second working space are aligned.

[0025] The cutting and welding device 2 includes a guide rail 21 mounted on a fixed pressure frame 3 and a welding torch 22 that can both cut and weld, which is slidably mounted on the guide rail 21. The length direction of the guide rail 21 is consistent with the length direction of the fixed pressure frame 3. The welding torch 22 can slide along the length direction of the fixed pressure frame 3 and the welding head of the welding torch 22 is located directly above the edge of the fixed pressure frame 3.

[0026] like Figure 4 As shown, the pressing device also includes a rotating pressing frame 5 rotatably mounted on the frame 1. When the movable pressing frame 4 moves away from the fixed pressing frame 3, the rotating pressing frame 5 rotates to a position between the movable pressing frame 4 and the fixed pressing frame 3.

[0027] The rotating press frame 5 includes a rotating shaft parallel to the length direction of the movable press frame 4, a rotating connecting plate rotatably mounted on the rotating shaft on one side, a rotating support plate fixed on the other side of the rotating connecting plate, and a rotating pressure plate 51 fixed on the rotating support plate. There is a gap space between the rotating support plate and the rotating pressure plate 51 to accommodate the material sheet.

[0028] The rotating pressure frame 5 has a folded state and a working state. When the movable pressure frame 4 is close to the fixed pressure frame 3, the rotating pressure frame 5 is in the folded state and is rotated and positioned below the movable pressure frame 4 and the fixed pressure frame 3. When the movable pressure frame 4 is away from the fixed pressure frame 3, the rotating pressure frame 5 is in the working state and is rotated and positioned between the movable pressure frame 4 and the fixed pressure frame 3, and is flush with both of them.

[0029] When the rotating pressure frame 5 is in working condition, the gap space, the first working space and the second working space are set flush with each other.

[0030] Working principle: The sheet material to be cut and re-welded is placed between the pressing devices. At this time, the movable pressing frame 4 moves closer to the fixed pressing frame 3, and the sheet material is pressed into the first working space between the fixed support plate 31 and the fixed pressing plate 32, and simultaneously into the second working space between the movable support plate 41 and the movable pressing plate 42. A weld bead is formed between the movable pressing frame 4 and the fixed pressing frame 3. The welding gun 22 of the cutting and welding device 2 is aligned with the weld bead to perform the first cut on the sheet material. After the first cut is completed, the movable pressing frame 4 moves away from the fixed pressing frame 3. At the same time, the rotating pressing frame 5 rotates to the space between the movable pressing frame 4 and the fixed pressing frame 3, thus fixing the fixed pressing frame 3. Plate 32 moves upward to release the sheet material, pushing the sheet material towards the rotating pressure frame 5 to the head, entering the gap space between the rotating support plate and the rotating pressure plate 51, pressing the fixed pressure frame 3, and making a second cut on the sheet material at the weld bead position; Step S3, after the second cut is completed, the cut waste material is taken out, the moving pressure frame 4 moves closer to the fixed pressure frame 3, at the same time, the rotating pressure frame 5 rotates to below the moving pressure frame 4 and the fixed pressure frame 3, the welding gun 22 is switched to the welding mode, aligned with the weld bead position, and the sheet material on both sides is welded; after welding is completed, the welded sheet material is directly introduced into the punch press for stamping through the feeding device.

[0031] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A laser linear cutting and welding integrated machine, comprising a rack (1), a cutting and welding device (2) arranged on the rack (1), and a pressing device arranged on the rack (1), characterized in that: The pressing device comprises a fixed pressing frame (3) arranged on one side of the rack (1), a movable pressing frame (4) slidingly arranged on the other side of the rack (1), the fixed pressing frame (3) and the movable pressing frame (4) are arranged in alignment, the movable pressing frame (4) can move away from and close to the fixed pressing frame (3), the pressing device further comprises a rotating pressing frame (5) rotatingly arranged on the rack (1), when the movable pressing frame (4) moves away from the fixed pressing frame (3), the rotating pressing frame (5) rotates to the position between the movable pressing frame (4) and the fixed pressing frame (3).

2. The laser straight-line cutting and welding all-in-one machine according to claim 1, characterized in that: The fixed pressing frame (3) comprises a fixed supporting plate (31) fixed on the rack (1), a fixed pressing plate (32) arranged above the fixed supporting plate (31) and capable of moving up and down, and a first working space is formed between the fixed supporting plate (31) and the fixed pressing plate (32) for the feeding sheet to enter.

3. The laser straight-line cutting and welding all-in-one machine according to claim 2, characterized in that: The movable pressing frame (4) comprises a movable supporting plate (41) slidingly arranged on the rack (1), a movable pressing plate (42) arranged above the movable supporting plate (41) and capable of moving up and down, and a second working space is formed between the movable supporting plate (41) and the movable pressing plate (42) for the feeding sheet to enter.

4. The laser straight-line cutting and welding all-in-one machine according to claim 3, characterized in that: The first working space and the second working space are arranged in alignment.

5. The laser straight-line cutting and welding all-in-one machine according to claim 1, characterized in that: The cutting and welding device (2) comprises a guide rail (21) arranged on the fixed pressing frame (3), and a cutting and welding welding gun (22) slidingly arranged on the guide rail (21).

6. The laser straight-line cutting and welding all-in-one machine according to claim 5, characterized in that: The length direction of the guide rail (21) is consistent with the length direction of the fixed pressing frame (3), the welding gun (22) can slide along the length direction of the fixed pressing frame (3), and the welding head of the welding gun (22) is located directly above the edge of the fixed pressing frame (3).

7. The laser linear cutting and welding all-in-one machine according to claim 4, characterized in that: The rotating pressing frame (5) comprises a rotating shaft parallel to the length direction of the movable pressing frame (4), a rotating connecting plate rotatingly arranged on one side of the rotating shaft, a rotating supporting plate fixed on the other side of the rotating connecting plate, and a rotating pressing plate (51) fixed on the rotating supporting plate, and the rotating supporting plate and the rotating pressing plate (51) have a gap space for accommodating the feeding sheet.

8. The laser straight-line cutting and welding all-in-one machine according to claim 7, characterized in that: The rotating pressing frame (5) has a folding state and a working state, when the movable pressing frame (4) is close to the fixed pressing frame (3), the rotating pressing frame (5) is in the folding state and is positioned below the movable pressing frame (4) and the fixed pressing frame (3), when the movable pressing frame (4) moves away from the fixed pressing frame (3), the rotating pressing frame (5) is in the working state and is positioned between the movable pressing frame (4) and the fixed pressing frame (3) and is flush with them.

9. The laser straight-line cutting and welding all-in-one machine according to claim 8, characterized in that: When the rotating pressing frame (5) is in the working state, the gap space, the first working space and the second working space are arranged in alignment.

10. A method of using the laser straight-line cutting and welding integrated machine according to any one of claims 1-9, characterized in that: The method comprises the following specific steps: Step S1, the material to be cut and re-welded is placed between the pressing device, the material is pressed on the rack (1) by the fixed pressing frame (3) and the moving pressing frame (4), at this time, the moving pressing frame (4) is close to the fixed pressing frame (3), the moving pressing frame (4) and the fixed pressing frame (3) form a welding pass, the cutting and welding device (2) is aligned with the welding pass to cut the material for the first time; Step S2, after the first cutting is completed, the moving pressing frame (4) moves away from the fixed pressing frame (3), at the same time, the rotating pressing frame (5) rotates to the position between the moving pressing frame (4) and the fixed pressing frame (3), the fixed pressing frame (3) is loosened, the material in the fixed pressing frame (3) is pushed to the head into the rotating pressing frame (5) in the direction of the rotating pressing frame (5), the fixed pressing frame (3) is pressed, and the material is cut for the second time at the welding pass position in step S1; Step S3, after the second cutting is completed, the cut waste is taken out, the moving pressing frame (4) moves close to the fixed pressing frame (3), at the same time, the rotating pressing frame (5) rotates to the position below the moving pressing frame (4) and the fixed pressing frame (3), the mode of the cutting and welding device (2) is switched, the welding pass position is aligned, and the materials on both sides are welded.

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