Double-station laser welding machine

Abstract

The utility model relates to a double-station laser welding machine which comprises a jacking mechanism and a pressing mechanism which are coaxially arranged and used for clamping a product to be welded. And the welding mechanism is arranged on one side of the jacking mechanism and used for welding the products clamped by the jacking mechanism and the pressing mechanism. According to the double-station laser welding machine, round pipes to be welded are clamped through the jacking mechanism and the pressing mechanism, then the butt joint positions of the round pipes are welded through the welding mechanism on one side, the jacking mechanism drives the round pipes to rotate while welding is conducted, then welding of the whole circumferential faces of the butt joint positions is completed through the welding mechanism, the butt joint positions of the round pipes are fully welded, and the welding efficiency is greatly improved. And the condition of solder skips does not exist, and the qualified rate of welded finished products is improved.

Description

Technical Field

[0001] This utility model belongs to the field of laser welding technology, specifically relating to a dual-station laser welding machine. Background Technology

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature, or high pressure. Due to its ease of operation and reliable post-weld connections, welding is widely used in various fields, from automotive manufacturing to electronics manufacturing, the energy industry, and metal processing and manufacturing. Furthermore, welding technology is also widely used in military, aerospace, shipbuilding, pressure vessels, pipeline engineering, petrochemical engineering, construction machinery, power engineering, construction, steel structures, vehicle manufacturing, rail transportation, light industry, and civilian applications. These applications demonstrate the importance and versatility of welding technology; from everyday consumer goods to critical infrastructure construction, everything relies on the support of welding technology.

[0003] For welding two round pipes, the existing technology involves an operator aligning the two round pipes and then welding them together with a handheld welding torch. This manual welding is inefficient and prone to missed welds (i.e., missed welds at the joint of the two round pipes), which affects the pass rate of the welded product. Utility Model Content

[0004] This invention provides a dual-station laser welding machine, which solves the problem of missed welds in manual welding in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a dual-station laser welding machine, comprising:

[0006] A lifting mechanism and a pressing mechanism are coaxially arranged, the lifting mechanism and the pressing mechanism being used to clamp the product to be welded;

[0007] A welding mechanism is provided on one side of the lifting mechanism and is used to weld the product held by the lifting mechanism and the pressing mechanism.

[0008] Optimally, the lifting mechanism includes a lower support frame, a lifting plate that is liftably mounted on top of the lower support frame, and a lower bearing block that is rotatably mounted on top of the lifting plate.

[0009] Optimally, the pressing mechanism includes an upper support frame fixed to the top of the lower support frame and a pressing block rotatably mounted on the bottom of the upper support frame and cooperating with the lower bearing block, the pressing block being coaxially arranged with the lower bearing block.

[0010] Ideally, the welding mechanism includes a three-axis transfer assembly and a welding torch mounted on the three-axis transfer assembly.

[0011] Optimally, the lifting assembly further includes a guide sleeve embedded in the lower support frame, a guide post fixed to the bottom of the lifting plate and passing through the guide sleeve, and a lifting cylinder for driving the lifting plate to rise and fall.

[0012] Optimally, the lifting mechanism further includes a hollow rotating platform fixed to the top of the lifting plate, a turntable fixed to the top of the hollow rotating platform, and a mounting cylinder integrally connected to the top of the turntable, with the lower bearing block fixed inside the mounting cylinder.

[0013] Optimally, the pressing mechanism includes a clamping plate fixed at intervals to the bottom of the upper support frame, a clamping groove opened on the inner side of the clamping plate, a clamping plate snapped into the clamping groove, and an extension column fixed to the bottom of the clamping plate, wherein the pressing block is rotatably installed at the bottom of the extension column.

[0014] Optimally, the three-axis transfer assembly includes a first movable plate movably mounted on the bottom of the upper support frame along the X-axis, a lifting plate movably mounted on the bottom of the first movable plate along the Z-axis, and a second movable plate movably mounted on one side of the lifting plate along the Y-axis, with the welding torch fixed on the second movable plate.

[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0016] This utility model dual-station laser welding machine uses a lifting mechanism and a pressing mechanism to clamp the round tube to be welded. Then, the welding mechanism on one side welds the joint of the round tube. At the same time, the lifting mechanism drives the round tube to rotate, and then the welding mechanism completes the welding of the entire circumference of the joint. The joint of the round tube is fully welded, and there is no missing weld, which improves the qualification rate of the welded products. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This utility model Figure 2 The main view;

[0020] Figure 4 This is a schematic diagram of the welding mechanism of this utility model;

[0021] Figure 5 This utility model Figure 3 Enlarged view of point A in the middle;

[0022] Figure 6This is a schematic diagram of the lifting mechanism of this utility model;

[0023] Figure 7 This is a front view of the lifting mechanism of this utility model;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Foot; 2. Lower frame; 3. Upper frame; 4. Guide sleeve; 5. Guide column; 6. Lifting cylinder; 7. Lifting plate; 8. Hollow rotating platform; 9. Turntable; 10. Mounting cylinder; 11. Lower bearing block; 12. Support column; 13. Top plate; 14. First linear slide; 15. First moving plate; 16. Slide mounting plate; 17. Second linear slide; 18. Reinforcing rib; 19. Lifting plate; 20. Third linear slide; 21. Second moving plate; 22. Welding torch mounting plate; 23. Welding torch; 24. Clamping plate; 25. Clamping groove; 26. Through groove; 27. Clamping plate; 28. Extension column; 29. ​​Rotating shaft; 30. Pressure block. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0027] like Figure 1-3 The diagram shows the structure of the dual-station laser welding machine of this invention. This welding machine has at least two welding stations, allowing for the simultaneous welding of two sets of products to improve welding efficiency (this welding machine is typically used for welding two round pipes). Both the lower frame 2 and the upper frame 3 are welded from metal sheets, and the upper frame 3 is fixed to the top of the lower frame 2 by screws (both the lower frame 2 and the upper frame 3 have hollow interiors, providing space for the installation of the lifting mechanism and the pressing mechanism). By setting up the lower frame 2 and the upper frame 3, the lifting mechanism, the pressing mechanism, and the welding mechanism are isolated from the outside environment, preventing safety accidents.

[0028] The foot 1 is installed at the bottom of the lower frame 2 by screws. The main reason for installing the foot 1 at the bottom of the lower frame 2 is to fix the equipment, reduce vibration and noise, and ensure the stable operation of the equipment.

[0029] like Figure 1 As shown, a rectangular slot is provided on one side of the upper frame 3 (i.e. the side closer to the operator) to facilitate the operator in picking up and putting down products, and at the same time, the operator can also see the internal welding situation more intuitively.

[0030] like Figure 6 , 7The diagram shows the structure of the lifting mechanism, which includes a guide sleeve 4, a guide column 5, a lifting cylinder 6, a lifting plate 7, a hollow rotating platform 8, a turntable 9, a mounting cylinder 10, and a lower bearing block 11. The guide sleeve 4 is embedded in the top of the lower frame 2 (specifically, the top of the lower frame 2 has a through hole for the guide sleeve 4 to pass through, and the guide sleeve 4 is fixed to the top of the lower frame 2 by screws).

[0031] The cylinder body of the lifting cylinder 6 is fixed to the lower surface of the top of the lower frame 2 by screws. The piston rod of the lifting cylinder 6 passes through the lower frame 2 and is connected to the lifting plate 7 (the piston rod of the lifting cylinder 6 is fixed to the bottom of the lifting plate 7 by welding). The lifting cylinder 6 drives the lifting plate 7 to move up and down. The guide post 5 passes through the guide sleeve 4 and is fixed to the bottom of the lifting plate 7. When the lifting cylinder 6 drives the lifting plate 7 to move up and down, it will drive the guide post 5 to move up and down synchronously along the guide sleeve 4, thereby improving the stability of the lifting plate 7 and improving the effect of subsequent welding.

[0032] The hollow rotating platform 8 is fixed to the top of the lifting plate 7 by screws (the commercially available KXZT60 model of hollow rotating platform 8 can be used). The turntable 9 is fixed to the rotating part of the hollow rotating platform 8 by screws. The hollow rotating platform 8 drives the turntable 9 to rotate, which in turn drives the product to be welded to rotate, so as to weld the circumference of the product, improve welding efficiency and avoid welding blind spots.

[0033] The mounting cylinder 10 is fixed to the top of the turntable 9 by welding. A mounting groove is provided on the top of the mounting cylinder 10 (i.e., the side of the mounting cylinder 10 away from the turntable 9). The lower support block 11 is a cylindrical structure with a diameter equal to the diameter of the mounting groove. The lower support block 11 is inserted into the mounting groove of the mounting cylinder 10 and then welded together with the mounting cylinder 10. When the hollow rotating platform 8 drives the turntable 9 to rotate, it will cause the mounting cylinder 10 and the lower support block 11 to rotate synchronously.

[0034] There are at least four support columns 12, which are fixed to the top of the lower frame 2 by welding. The top plate 13 is fixed to the top of the support columns 12 by welding, and the four support columns 12 are located at the four corners of the top plate 13, thereby improving the stability of the top plate 13 structure.

[0035] The pressing mechanism is installed at the bottom of the top plate 13 and cooperates with the lifting mechanism to clamp the product to be welded. Figure 5As shown, the pressing mechanism includes clamping plates 24, clamping grooves 25, through grooves 26, clamping plates 27, extension columns 28, rotating shafts 29, and pressing blocks 30. There are two clamping plates 24, which are fixed to the bottom of the top plate 13 at intervals by welding. The clamping grooves 25 are formed on opposite sides of the two clamping plates 24. Through grooves 26, which communicate with the clamping grooves 25, are formed between adjacent clamping plates 24.

[0036] The clamping plate 27 is inserted into the clamping groove 25 of the two adjacent clamping plates 24. Under the clamping action of the clamping plates 24, the clamping plate 27 will not fall downward. During installation, after the clamping plate 27 is moved inward into place, the fastening bolt is passed through the top plate 13 and fixed to the clamping plate 27 to complete the fixation of the clamping plate 27. This prevents the clamping plate 27 from shifting during subsequent clamping and welding.

[0037] The extension column 28 is integrally connected to the bottom of the card plate 27 and passes through the through slot 26. The rotating shaft 29 is rotatably mounted on the bottom of the extension column 28 via a bearing (specifically, the bottom of the extension column 28 has a hole for mounting the bearing, the bearing is mounted in the hole at the bottom of the extension column 28 by interference fit, and the rotating shaft 29 is mounted in the bearing by interference fit. By setting the bearing, it is ensured that the rotating shaft 29 can rotate normally).

[0038] The pressure block 30 is fixed to the bottom of the rotating shaft 29, and the pressure block 30 is coaxially arranged with the lower support block 11. During actual welding, the operator places the product to be welded on top of the lower support block 11, and the lifting cylinder 6 drives the lifting plate 7 to rise until the product abuts against the pressure block 30. During welding, the hollow rotating platform 8 drives the turntable 9 to rotate, thereby welding the outer peripheral surface of the product and avoiding welding blind spots (when the hollow rotating platform 8 drives the turntable 9 to rotate, since the product is clamped between the lower support block 11 and the pressure block 30, it will drive the pressure block 30 and the rotating shaft 29 to rotate synchronously, and then the welding mechanism on one side will weld the outer peripheral surface of the product).

[0039] The welding mechanism is located on one side of the lifting mechanism, such as... Figure 4 As shown, the welding mechanism includes a first linear slide 14, a first movable plate 15, a slide mounting plate 16, a second linear slide 17, a reinforcing rib 18, a lifting plate 19, a third linear slide 20, a second movable plate 21, a welding torch mounting plate 22, and a welding torch 23. The first linear slide 14 is mounted on the lower surface of the top plate 13 by screws, and the first movable plate 15 is fixed to the sliding part of the first linear slide 14 by screws. The first linear slide 14 drives the first movable plate 15 to move along the X-axis.

[0040] The slide mounting plate 16 is vertically fixed to the bottom of the first movable plate 15 by welding. The second linear slide 17 is fixed to one side of the slide mounting plate 16 by screws, and the second linear slide 17 is installed vertically. One side of the reinforcing rib 18 is fixed to the bottom of the first movable plate 15 by welding, and the other side of the reinforcing rib 18 is fixed to one side of the slide mounting plate 16 by welding. By setting the reinforcing rib 18, the structural strength of the slide mounting plate 16 is improved.

[0041] The lifting plate 19 is fixed to the sliding part of the second linear slide 17 by screws, and the second linear slide 17 drives the lifting plate 19 to move up and down along the Z-axis. The third linear slide 20 is fixed to the side of the lifting plate 19 away from the second linear slide 17 by screws. The second moving plate 21 is fixed to the sliding part of the second linear slide 17 by screws, and the second moving plate 21 moves along the Y-axis driven by the second linear slide 17.

[0042] The welding torch mounting plate 22 is fixed to the side of the second moving plate 21 away from the third linear slide 20 by screws. The welding torch 23 is fixed to the welding torch mounting plate 22 by screws, and the welding torch 23 faces the lifting mechanism and the pressing mechanism, and is used to weld the products held by the lifting mechanism and the pressing mechanism.

[0043] By setting up a three-axis transfer assembly, welding can be performed at different heights of the product, improving the flexibility and versatility of the equipment.

[0044] When welding two metal tubes, the dual-station laser welding machine of this invention first has the operator join the two tubes together, and then weld 3-5 points at the joint (temporarily fixing the position of the two tubes to prevent them from separating during subsequent clamping). After the preliminary work is completed, the operator places the product on top of the lower support block 11, and the lifting cylinder 6 drives the lifting plate 7 to rise until the product abuts against the pressure block 30 (at this time, the tubes are clamped between the lower support block 11 and the pressure block 30). At this time, the welding torch 23 moves forward to the weld seam near the joint of the two tubes and welds the joint. At the same time, the hollow rotating platform 8 drives the turntable 9 to rotate, which in turn drives the tubes to rotate, and the welding torch 23 welds the outer circumference of the product, avoiding welding blind spots and improving the qualification rate of the finished product.

[0045] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dual-station laser welding machine, characterized in that, It includes: A lifting mechanism and a pressing mechanism are coaxially arranged, the lifting mechanism and the pressing mechanism being used to clamp the product to be welded; A welding mechanism is provided on one side of the lifting mechanism and is used to weld the product held by the lifting mechanism and the pressing mechanism. The lifting mechanism includes a lower support frame, a lifting plate (7) that is vertically mounted on the top of the lower support frame, and a lower bearing block (11) that is rotatably mounted on the top of the lifting plate (7). The pressing mechanism includes an upper support frame fixed to the top of the lower support frame and a pressing block (30) rotatably mounted on the bottom of the upper support frame and cooperating with the lower support block (11). The pressing block (30) and the lower support block (11) are coaxially arranged.

2. The dual-station laser welding machine according to claim 1, characterized in that: The welding mechanism includes a three-axis transfer assembly and a welding torch (23) mounted on the three-axis transfer assembly.

3. The dual-station laser welding machine according to claim 1, characterized in that: The lifting mechanism also includes a guide sleeve (4) embedded in the lower support frame, a guide post (5) fixed to the bottom of the lifting plate (7) and passing through the guide sleeve (4), and a lifting cylinder (6) for driving the lifting plate (7) to rise and fall.

4. A dual-station laser welding machine according to claim 1, characterized in that: The lifting mechanism also includes a hollow rotating platform (8) fixed to the top of the lifting plate (7), a turntable (9) fixed to the top of the hollow rotating platform (8), and an installation cylinder (10) integrally connected to the top of the turntable (9). The lower bearing block (11) is fixed inside the installation cylinder (10).

5. A dual-station laser welding machine according to claim 1, characterized in that: The pressing mechanism includes a clamping plate (24) fixed at intervals to the bottom of the upper support frame, a clamping groove (25) opened inside the clamping plate (24), a clamping plate (27) snapped into the clamping groove (25), and an extension column (28) fixed to the bottom of the clamping plate (27). The pressing block (30) is rotatably installed at the bottom of the extension column (28).

6. A dual-station laser welding machine according to claim 2, characterized in that: The three-axis transfer assembly includes a first movable plate (15) movable along the X-axis and mounted on the bottom of the upper support frame, a lifting plate (19) movable along the Z-axis and mounted on the bottom of the first movable plate (15), and a second movable plate (21) movable along the Y-axis and mounted on one side of the lifting plate (19), wherein the welding torch (23) is fixed on the second movable plate (21).

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