Automatic laser welding equipment

Abstract

The utility model relates to the technical field of laser welding equipment, and discloses automatic laser welding equipment which comprises a base, a cavity area is formed in the base, a servo motor is fixedly connected to the bottom of the inner wall of the cavity area, and the output end of the servo motor is fixedly connected with a first chain wheel. The left side of the top end of the base is rotationally connected with a rotating block, the bottom of the rotating block penetrates through the base and is fixedly connected with a second chain wheel, and a chain is arranged on the outer side of the second chain wheel and the outer side of the first chain wheel. The servo motor drives the first chain wheel and drives the laser welding device through the chain, the angle of the laser welding device can be adjusted through the fixing rotary knob, the rotary table rotates at a constant speed, the servo motor rotates reversely to enable the laser welding device to return, the upper pressing head moves upwards to relieve fixation, and circumferential welding of a workpiece can be completed.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, and in particular to an automatic laser welding device. Background Art

[0002] Automatic laser welding equipment is an advanced manufacturing technology that uses a precision laser beam to weld on the surface of a workpiece. This equipment includes an automated control device that can precisely control the welding path and parameters. Equipped with a high-power laser source and precision optics, the equipment ensures high precision and stability in the welding process. Its operation does not require manual intervention and automatically completes the welding task through a preset program, improving production efficiency and consistency. Automatic laser welding equipment is suitable for welding various materials and complex structures, such as metals, plastics, and ceramics, and is widely used in high-precision manufacturing fields such as the automotive industry and aerospace.

[0003] A search revealed Chinese Patent Publication No. CN220761345U, which discloses laser welding equipment, including: a support frame, a welding machine, a conveying mechanism, an air knife assembly, and a vision positioning assembly. The support frame is equipped with a first adjustment mechanism; the welding machine can be raised and lowered under the drive of the first adjustment mechanism, with the welding head of the welding machine facing downwards; the conveying mechanism is used to convey the product along a first direction and passes under the welding head; the air knife assembly is connected to the welding machine and is located on one side of the welding head in the first direction; the vision positioning assembly has two sets and is located on both sides of the welding head in a second direction. The vision positioning assembly is connected to the air knife assembly through a crossbar. The vision positioning assembly is used to acquire the posture of the product. The vision positioning assembly is connected to the crossbar through a mounting plate. The mounting plate has vertical strip holes, and the crossbar has mounting holes. The mounting plate and the crossbar are connected and fixed by fasteners, which pass through the strip holes and mounting holes. This laser welding equipment can automatically confirm the product posture to improve welding quality.

[0004] However, in actual use, when performing circumferential welding, the device requires manual rotation of the workpiece, which can lead to misalignment of the welding point. Furthermore, the manual rotation and placement of the workpiece during welding, over extended periods, can cause the clamping components to loosen. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic laser welding device, which aims to improve the existing technology that requires manual rotation of the workpiece during circumferential welding operations, resulting in welding site misalignment.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic laser welding device, including a base, the base having a cavity region inside, a servo motor fixedly connected to the bottom of the inner wall of the cavity region, a first sprocket fixedly connected to the output end of the servo motor, a rotating block rotatably connected to the top left of the base, a second sprocket fixedly connected to the bottom of the rotating block penetrating the base, a chain provided on the outer side of the second sprocket and the first sprocket, a U-shaped block fixedly connected to the top of the rotating block, and a laser welding device rotatably connected to the inner wall of the U-shaped block. A U-shaped block is threaded through the front side of the outer wall of the base and a fixed knob is connected to it. A bracket is fixedly connected to the top rear side of the base. A first cylinder is fixedly connected to the front side of the bracket. An upper pressure rod is fixedly connected to the movement of the first cylinder. An upper pressure head is rotatably connected to the outer side of the upper pressure rod. A turntable is fixedly connected to the top center of the base. A fixed pin is fixedly connected to the top center of the turntable. A machining part is set at the top of the turntable. A nut is set at the top of the machining part. An automatic feeding and unloading mechanism is set on the right side of the top of the base. The automatic feeding and unloading mechanism is used to automatically feed and unload materials during the welding process.

[0007] As a further description of the above technical solution:

[0008] The automatic feeding and unloading mechanism includes a rotating column, which is rotatably connected to the top right side of the base. The bottom of the rotating column passes through the base and is fixedly connected to a third sprocket. The third sprocket is engaged with the chain. A second cylinder is fixedly connected to the front side of the rotating column. The movement of the second cylinder is fixedly connected to a U-shaped plate. Fixed clamps are fixedly connected to the top of both the left and right sides of the rotating column. Movable clamps are fixedly connected to the top left and right sides of the U-shaped plate.

[0009] As a further description of the above technical solution:

[0010] A cylinder is fixedly connected to the outer side of the turntable, and a movable roller is rotatably connected to the top of the outer wall of the cylinder.

[0011] As a further description of the above technical solution:

[0012] A fixing column is fixedly connected to the right side of the base, and a feeding rack is fixedly connected to the top of the fixing column.

[0013] As a further description of the above technical solution:

[0014] The bottom left and right sides of the rotating column are provided with sliding grooves, which are slidably connected to the movable clamping plate.

[0015] As a further description of the above technical solution:

[0016] A controller is fixedly connected to the front side of the base. The controller is electrically connected to the servo motor, the laser welding device, the turntable, the first cylinder, and the second cylinder.

[0017] As a further description of the above technical solution:

[0018] A locking block is fixedly connected to the top left side of the base. A warning sign is provided on the inner wall of the locking block, and the warning sign engages with the locking block.

[0019] As a further description of the above technical solution:

[0020] A fixing strip is fixedly connected to the rear right side of the top of the base. A vacuum tube is provided on the front side of the fixing strip. Multiple fixing rings are provided on the outer side of the vacuum tube. The vacuum tube is fixedly connected to the fixing strip through the multiple fixing rings.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by placing the workpiece outside the fixing pin and the nut on it, the first cylinder is started to drive the upper pressure head to press the nut, the servo motor drives the first sprocket, which drives the second sprocket via the chain, and then drives the laser welding device. The angle of the laser welding device can be adjusted by the fixed knob. At the same time, the turntable rotates at a uniform speed. The welding is completed after one revolution. The servo motor rotates in the opposite direction to return the laser welding device to its position. The first cylinder drives the upper pressure head to move up and release the fixation, which can complete the circumferential welding of the workpiece.

[0023] 2. In this utility model, by starting the cylinder, the U-shaped plate and the moving clamping plate are moved to the top of 1. The left moving clamping plate and the fixed clamping plate hold the processed workpiece, and the right side holds the new workpiece. The servo motor drives the sprocket to rotate, which drives the rotating column to rotate, so as to realize the workpiece exchange. When the cylinder is started again, the U-shaped plate moves downward to place the clamped object, which can complete the automatic picking and placing of materials. Attached Figure Description

[0024] Figure 1 This is a perspective view of an automatic laser welding device proposed in this utility model;

[0025] Figure 2 for Figure 1 Enlarged view of point A;

[0026] Figure 3 This is a front sectional view of the base of an automatic laser welding device proposed in this utility model;

[0027] Figure 4 This is a top view of an automatic laser welding device proposed in this utility model;

[0028] Figure 5This is a side view of an automatic laser welding device proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Automatic feeding and unloading mechanism; 201. Rotating column; 202. Third sprocket; 203. Second cylinder; 204. U-shaped plate; 205. Fixed clamping plate; 206. Moving clamping plate; 3. Cavity area; 4. Servo motor; 5. First sprocket; 6. Second sprocket; 7. Rotating block; 8. U-shaped block; 9. Laser welding device; 10. Fixed knob; 11. Turntable; 12. Bracket; 13. First cylinder; 14. Upper pressure rod; 15. Upper pressure head; 16. Processed part; 17. Nut; 18. Fixing pin; 19. Chain; 20. Cylinder; 21. Moving roller column; 22. Fixed column; 23. Feeding rack; 24. Slide groove; 25. Controller; 26. Clamping block; 27. Warning sign; 28. Fixing strip; 29. ​​Dust suction pipe; 30. Fixing ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of an automatic laser welding device, comprising a base 1, with a cavity 3 inside the base 1. A servo motor 4 is fixedly connected to the bottom of the inner wall of the cavity 3, and a first sprocket 5 is fixedly connected to the output end of the servo motor 4. A rotating block 7 is rotatably connected to the top left of the base 1. A second sprocket 6 is fixedly connected to the bottom of the rotating block 7 through the base 1. A chain 19 is provided on the outer side of the second sprocket 6 and the first sprocket 5. A U-shaped block 8 is fixedly connected to the top of the rotating block 7. A laser welding device 9 is rotatably connected to the inner wall of the U-shaped block 8, and the front side of the outer wall of the laser welding device 9 passes through the U-shaped block 8. A fixed knob 10 is threadedly connected to the base 1. A bracket 12 is fixedly connected to the top rear side of the base 1. A first cylinder 13 is fixedly connected to the front side of the bracket 12. An upper pressure rod 14 is fixedly connected to the movement of the first cylinder 13. An upper pressure head 15 is rotatably connected to the outer side of the upper pressure rod 14. A turntable 11 is fixedly connected to the top center of the base 1. A fixed pin 18 is fixedly connected to the top center of the turntable 11. A workpiece 16 is set at the top of the turntable 11. A nut 17 is set at the top of the workpiece 16. An automatic feeding and unloading mechanism 2 is set on the top right side of the base 1. The automatic feeding and unloading mechanism 2 is used to automatically feed and unload materials during the welding process.

[0033] Specifically, the part to be welded on the upper part of the workpiece 16 is placed outside the fixing pin 18. Then, the nut 17 to be welded is placed on top of the workpiece 16. Activating the first cylinder 13 moves the upper pressure rod 14 and the upper pressure head 15 above it towards the bottom of the base 1. The upper pressure head 15 on its outer side presses down on the nut 17. Activating the servo motor 4 drives the first sprocket 5 to rotate, which in turn drives the second sprocket 6 to rotate via the outer chain 19. This, in turn, drives the rotating block 7, the U-shaped block 8 above it, and the laser welding device 9. Rotating the fixing knob 10 tightens or loosens the U-shaped block 8 against the laser welding device 9. The laser welding device 9 is fixed, thereby adjusting its angle. Then, with the rotation of the second sprocket 6, the welding head of the laser welding device 9 will be aligned with the position of the nut 17 and the workpiece 16 to be welded. At this time, the laser welding device 9 is started to weld, and the turntable 11 is started to rotate at a constant speed. When it completes one revolution, the welding is considered complete. Then, the servo motor 4 is started to rotate in the opposite direction, thereby returning the laser welding device 9 to its original position. The first cylinder 13 is started to drive the upper pressure rod 14 and the upper pressure head 15 to move towards the top of the base 1, thereby releasing the fixation of the workpiece 16.

[0034] Reference Figure 1 , Figure 4 and Figure 5The automatic feeding and unloading mechanism 2 includes a rotating column 201, which is rotatably connected to the top right side of the base 1. The bottom of the rotating column 201 passes through the base 1 and is fixedly connected to a third sprocket 202. The third sprocket 202 is meshed with a chain 19. A second cylinder 203 is fixedly connected to the front side of the rotating column 201. A U-shaped plate 204 is fixedly connected to the movement of the second cylinder 203. Fixed clamping plates 205 are fixedly connected to the top of both the left and right sides of the rotating column 201. Movable clamping plates 206 are fixedly connected to the top of both the left and right sides of the U-shaped plate 204.

[0035] Specifically, after completing the previous welding work, the second cylinder 203 is activated, which moves the U-shaped plate 204 to the top of the base 1 and moves the movable clamping plate 206 to the top as well. The movable clamping plate 206 on the left side will clamp the finished workpiece with the corresponding fixed clamping plate 205. At the same time, the movable clamping plate 206 on the right side will clamp the new workpiece to be processed. Then, the servo motor 4 drives the first sprocket 5 to drive the second sprocket 6 and the third sprocket 202 to rotate together through the chain 19, thereby driving the rotating column 201 to rotate, thereby exchanging the positions of the finished workpiece and the workpiece to be processed. Then, the second cylinder 203 is activated to move the U-shaped plate 204 to the bottom of the base 1, thereby placing the clamped objects on both sides and completing the automatic material handling action.

[0036] Reference Figure 1 , Figure 4 and Figure 3 A cylinder 20 is fixedly connected to the outer side of the turntable 11, and a moving roller 21 is rotatably connected to the top of the outer wall of the cylinder 20; a fixed column 22 is fixedly connected to the right side of the base 1, and a feeding rack 23 is fixedly connected to the top of the fixed column 22; a sliding groove 24 is provided on both the left and right sides of the bottom of the rotating column 201, and the sliding groove 24 is slidably connected to the moving clamp 206; a controller 25 is fixedly connected to the front side of the base 1, and the controller 25 is electrically connected to the servo motor 4, the laser welding device 9, the turntable 11, the first cylinder 13, and the second cylinder 203 respectively;

[0037] Specifically, the cylinder 20 protects the turntable 11 from damage due to impacts, and the outer moving roller column 21 provides a stable support platform for welding larger workpieces 16. The fixed column 22 supports the feeding rack 23, facilitating the automatic feeding and unloading mechanism 2 to pick up and unload materials. The slide 24 facilitates the movement of the movable clamping plate 206. The controller 25 controls the starting and running power of the servo motor 4, the laser welding device 9, the turntable 11, the first cylinder 13, and the second cylinder 203. The controller 25 is of model EUMAX, the servo motor 4 is of model HG-JR353, the laser welding device 9 is of model ALO3, the turntable 11 is of model ST21A, and the first cylinder 13 and the second cylinder 203 are of model SMC.

[0038] Reference Figure 1 , Figure 4 and Figure 5 A locking block 26 is fixedly connected to the top left side of the base 1. A warning sign 27 is provided on the inner wall of the locking block 26. The warning sign 27 is engaged with the locking block 26. A fixing strip 28 is fixedly connected to the rear right side of the top of the base 1. A vacuum tube 29 is provided on the front side of the fixing strip 28. Multiple fixing rings 30 are provided on the outer side of the vacuum tube 29. The vacuum tube 29 is fixedly connected to the fixing strip 28 through the multiple fixing rings 30.

[0039] Specifically, the warning sign 27 can be engaged by the locking block 26, which can remind the operator to pay attention to safety. The vacuum cleaner 29 can be supported by the fixing strip 28, and the vacuum cleaner 29 can be fixed above the fixing strip 28 by the fixing ring 30.

[0040] Working principle: Before using the device, firstly, place the part of the workpiece 16 to be welded onto the outside of the fixing pin 18. Then, place the nut 17 to be welded on the workpiece 16. Next, start the first cylinder 13 to drive the upper pressure rod 14 and its upper pressure head 15 to move towards the bottom of the base 1. Apply pressure to the nut 17 using the upper pressure head 15. Then, start the servo motor 4 to drive the first sprocket 5 to rotate. Through the transmission of the chain 19, the second sprocket 6 is driven to rotate, thereby driving the rotating block 7 and its U-shaped block 8 and laser welding device 9 to move. Before this, the fixed angle of the laser welding device 9 on the U-shaped block 8 can be adjusted by adjusting the tightness of the fixing knob 10 to ensure that the welding head is aligned with the welding position of the nut 17 and the workpiece 16. After confirming that the position is correct, start the laser welding device 9 to perform the welding operation, and at the same time start the turntable 11 to rotate at a constant speed. When the turntable 11 completes one full rotation, the welding is considered complete. Afterward, start the servo motor 4 to rotate in the opposite direction to reset the laser welding device 9, and start it again. The first cylinder 13 drives the upper pressure rod 14 and the upper pressure head 15 to move towards the top of the base 1, releasing the fixation on the workpiece 16. After completing the welding task in the previous stage, the second cylinder 203 is activated through the automatic feeding and unloading mechanism 2 to move the drive U-shaped plate 204 towards the top of the base 1 and pull the moving clamping plate 206 to rise to the top simultaneously. At this time, the moving clamping plate 206 on the left side and the corresponding fixed clamping plate 205 closely cooperate to clamp and fix the completed workpiece; while the moving clamping plate 206 on the right side... 06 is responsible for clamping the new workpiece to be processed. Then, the servo motor 4 starts and drives the first sprocket 5, which in turn drives the second sprocket 6 and the third sprocket 202 to rotate via the chain 19. This causes the rotating column 201 to rotate, so that the position of the processed workpiece and the workpiece to be processed can be exchanged. Then, the second cylinder 203 is started again to drive the U-shaped plate 204 to move to the bottom of the base 1, so that the clamped objects on both sides are placed in the predetermined positions, thereby completing the automated material picking and unloading operation.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic laser welding device, comprising a base (1), characterized in that: The base (1) has a cavity (3) inside. A servo motor (4) is fixedly connected to the bottom of the inner wall of the cavity (3). A first sprocket (5) is fixedly connected to the output end of the servo motor (4). A rotating block (7) is rotatably connected to the top left of the base (1). A second sprocket (6) is fixedly connected to the bottom of the rotating block (7) through the base (1). A chain (19) is provided on the outer side of the second sprocket (6) and the first sprocket (5). A U-shaped block (8) is fixedly connected to the top of the rotating block (7). A laser welding device (9) is rotatably connected to the inner wall of the U-shaped block (8). A fixing knob (10) is threadedly connected to the front side of the outer wall of the laser welding device (9) through the U-shaped block (8). A bracket (12) is fixedly connected to the rear top of the base (1). A first cylinder (13) is fixedly connected to the front side of the bracket (12). An upper pressure rod (14) is fixedly connected to the movement of the first cylinder (13). An upper pressure head (15) is rotatably connected to the outer side of the upper pressure rod (14). A turntable (11) is fixedly connected to the middle of the top of the base (1). A fixing pin (18) is fixedly connected to the middle of the top of the turntable (11). A processing part (16) is provided at the top of the turntable (11). A nut (17) is provided at the top of the processing part (16). An automatic feeding and picking mechanism (2) is provided on the right side of the top of the base (1). The automatic feeding and picking mechanism (2) is used to automatically feed and pick up materials during the welding process.

2. The automatic laser welding equipment according to claim 1, characterized in that: The automatic feeding and receiving mechanism (2) includes a rotating column (201), which is rotatably connected to the top right side of the base (1). The bottom of the rotating column (201) passes through the base (1) and is fixedly connected to a third sprocket (202). The third sprocket (202) is meshed with the chain (19). A second cylinder (203) is fixedly connected to the front side of the rotating column (201). The movement of the second cylinder (203) is fixedly connected to a U-shaped plate (204). Fixed clamps (205) are fixedly connected to the top of the left and right sides of the rotating column (201). Moving clamps (206) are fixedly connected to the top of the U-shaped plate (204) on the left and right sides.

3. The automatic laser welding equipment according to claim 1, characterized in that: A cylinder (20) is fixedly connected to the outside of the turntable (11), and a moving roller (21) is rotatably connected to the top of the outer wall of the cylinder (20).

4. The automatic laser welding equipment according to claim 1, characterized in that: A fixing column (22) is fixedly connected to the right side of the base (1), and a feeding rack (23) is fixedly connected to the top of the fixing column (22).

5. An automatic laser welding device according to claim 2, characterized in that: The bottom left and right sides of the rotating column (201) are provided with sliding grooves (24), and the sliding grooves (24) are slidably connected to the movable clamping plate (206).

6. An automatic laser welding device according to claim 2, characterized in that: A controller (25) is fixedly connected to the front side of the base (1). The controller (25) is electrically connected to the servo motor (4), the laser welding device (9), the turntable (11), the first cylinder (13), and the second cylinder (203).

7. An automatic laser welding device according to claim 1, characterized in that: A locking block (26) is fixedly connected to the top left side of the base (1). A warning sign (27) is provided on the inner wall of the locking block (26). The warning sign (27) engages with the locking block (26).

8. An automatic laser welding device according to claim 1, characterized in that: A fixing strip (28) is fixedly connected to the right side of the rear top of the base (1). A vacuum tube (29) is provided on the front side of the fixing strip (28). Multiple fixing rings (30) are provided on the outer side of the vacuum tube (29). The vacuum tube (29) is fixedly connected to the fixing strip (28) through the multiple fixing rings (30).

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