Stainless steel flux-cored wire joint laser welding device

Abstract

The utility model belongs to the technical field of laser welding, and particularly relates to a stainless steel flux-cored wire joint laser welding device which comprises a servo motor, a threaded rod is installed at the output end of the servo motor, an installation base is installed on the top side of a sliding block, and a connecting plate is installed in the installation base in a matched mode through a pin shaft. The other end of the connecting plate is mounted in the supporting seat in a matched manner through a pin shaft, a pointer is mounted on the outer side of one end of the rotating shaft, and a dial is mounted on one side of the supporting plate; a servo motor is started, an output shaft of the servo motor drives a threaded rod to rotate, a sliding block can linearly slide in a sliding groove, a connecting plate is driven to act through a mounting base, a movable plate can rotate around a rotating shaft through pushing and pulling of the connecting plate, and a pointer is matched with a dial on one side of a supporting plate, so that the rotating angle of the movable plate can be visually displayed; the inclination angle of the movable plate is accurately controlled, a proper working face is provided for follow-up welding, and the welding precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, specifically a laser welding device for stainless steel flux-cored wire joints. Background Technology

[0002] In the field of medical equipment, the metal shells of medical equipment are usually made of stainless steel sheets. Precision welding can be achieved by using steel flux-cored wire laser welding, which ensures the accuracy and reliability of the device. At the same time, the weld has good corrosion resistance. Therefore, there is a need for a stainless steel flux-cored wire joint laser welding device.

[0003] The existing stainless steel flux-cored welding wire joint laser welding device first places the plate on the worktable and fixes it. Then, the reciprocating motor is started to drive the screw to rotate, so that the slider slides in the slide rail and drives the laser welding machine to move horizontally to the welding position. Then, the cylinder drives the laser welding machine to descend and align with the weld. At the same time, the wire feeding system delivers the flux-cored welding wire through the wire threading tube and the wire feeding sleeve. The laser beam melts the welding wire and completes the welding with the plate.

[0004] However, the above-mentioned device still has some problems. In practical applications, the metal shell of medical equipment often has multi-angle seams. The welding angle is fixed in the existing technology, which can only perform welding operations at one angle on the plate, making it difficult to align the optimal welding position for complex seams. Therefore, in order to solve the above problems, a laser welding device for stainless steel flux-cored wire seams is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a laser welding device for stainless steel flux-cored wire joints.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A laser welding device for stainless steel flux-cored wire joints, comprising a worktable, a servo motor mounted on one side of the worktable, a threaded rod mounted on the output end of the servo motor, a sliding groove formed inside the top side of the worktable, a sliding block slidably mounted inside the sliding groove, a threaded hole formed inside the bottom end of the sliding block, one end of the threaded rod passing through the threaded hole and rotatably mounted inside one side of the sliding groove, a mounting base mounted on the top side of the sliding block, a connecting plate mounted inside the mounting base via a pin, and two support plates symmetrically mounted at the middle of the top side of the worktable. A rotating shaft is rotatably mounted inside the support plate. A movable plate is mounted on the outside of the rotating shaft, and a support base is mounted on the bottom side of the movable plate. The other end of the connecting plate is mounted inside the support base via a pin. An indicator needle is mounted on the outside of one end of the rotating shaft, and a scale is mounted on one side of the support plate. A servo motor drives a threaded rod to rotate, which engages with a threaded hole inside the bottom of the sliding block, causing the sliding block to slide in a groove. This, in turn, moves the mounting base. When the mounting base moves, it pulls or pushes the connecting plate, thereby causing the movable plate to rotate around the rotating shaft. This allows for flexible adjustment of the welding angle according to actual needs, improving the precision and quality of the welding.

[0007] Preferably, a fixed plate is installed at the other end of the top side of the workbench, and a positioning plate is installed at one edge of both the fixed plate and the movable plate. A telescopic rod is installed on the other side of both the fixed plate and the movable plate, and a fixed clamping plate is installed at the working end of each telescopic rod. The positioning plate can initially position the plate. When the telescopic rod extends, it pushes the fixed clamping plate closer to the plate until the plate is firmly clamped, ensuring the stability and consistency of the weld and improving the welding quality.

[0008] Preferably, a fixed frame is installed on the other side of the workbench, a reciprocating motor is installed on one side of the fixed frame, a screw is installed at the output end of the reciprocating motor, a slide rail is provided inside the top side of the fixed frame, a slider is slidably installed inside the slide rail, a threaded hole is provided inside the slider, one end of the screw passes through the threaded hole and is rotatably installed inside one side of the slide rail, the reciprocating motor drives the screw to rotate, causing the slider to slide inside the slide rail, thereby driving the cylinder and the laser welding machine to move horizontally together, which can precisely control the moving distance and speed of the laser welding machine according to the length of the weld seam of the plate, ensuring that the weld seam can be welded completely and uniformly.

[0009] Preferably, a cylinder is mounted on the bottom side of the slider, and an installation plate is mounted on the actuating end of the cylinder. A laser welding machine is mounted on the bottom side of the installation plate. A wire threading tube is installed through one end of the installation plate, and a wire feeding sleeve is fitted at one end of the wire threading tube. A welding wire body is fitted through the wire feeding sleeve inside the wire threading tube. One end of the welding wire body is connected to an external welding wire spool. The cylinder drives the installation plate to descend, enabling the laser welding machine to accurately align and weld the weld. The wire feeding sleeve accurately delivers the welding wire body from the external welding wire spool to the welding position, working in conjunction with laser welding to form a high-quality weld, thereby improving the corrosion resistance of the weld.

[0010] Preferably, a smoke extraction pipe is installed through the other end of the mounting plate, and one end of the smoke extraction pipe is connected to an installation cavity. A water tank is installed on one side of the workbench, and a connecting pipe, which is a rigid straight pipe, is installed through the inside of the water tank. The bottom side of the installation cavity is connected to the top side of the connecting pipe. A support frame is installed inside the bottom end of the installation cavity, and a negative pressure motor is installed at the top of the support frame. Three fan blades are equidistantly installed at the output end of the negative pressure motor. A filter plate is installed in the middle of the installation cavity, and an exhaust pipe is connected to the top side of the water tank. A drain pipe is installed on one side of the water tank, and a valve is installed inside the drain pipe. During the welding process, the generated fumes enter the installation cavity through the smoke extraction pipe. The filter plate performs preliminary filtration of larger particles and impurities in the fumes. Then, the fumes enter the water tank, where the water further adsorbs fine particles and some odors. After filtration and water adsorption, the fumes are discharged through the exhaust pipe on the top side of the water tank, thus improving the filtration effect.

[0011] Preferably, a control panel is installed on one side of the workbench, and the control panel is electrically connected to the electrical components inside the device, thereby realizing centralized control of the electrical components inside the device.

[0012] The advantages of this utility model are:

[0013] 1. The present invention starts a servo motor, whose output shaft drives the threaded rod to rotate, so that the sliding block slides linearly in the groove. The mounting base drives the connecting plate to move. The pushing and pulling of the connecting plate will cause the movable plate to rotate around the rotating axis. The indicator needle, together with the scale on one side of the support plate, can intuitively display the rotation angle of the movable plate and accurately control the tilt angle of the movable plate, so as to provide a suitable working surface for subsequent welding and improve the welding accuracy.

[0014] 2. This utility model starts a negative pressure motor, whose output fan blades rotate to generate suction. The high-temperature fumes generated during welding enter the installation cavity through the smoke pipe under negative pressure. The filter plate intercepts and filters welding slag particles and larger impurities in the fumes. Then, the pre-filtered fumes are pumped into the water tank through the connecting pipe. The water in the tank performs secondary purification on the fumes, adsorbing fine particles and some odors in the fumes, thus improving the filtration effect of the fumes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the device;

[0018] Figure 3 A schematic diagram of the panel positioning component structure;

[0019] Figure 4 This is a schematic diagram of the sheet metal angle adjustment component.

[0020] Figure 5 This is a schematic diagram of the structure for adjusting the position of the welding assembly.

[0021] In the diagram: 1. Workbench; 2. Servo motor; 3. Threaded rod; 4. Slide groove; 5. Sliding block; 6. Mounting base; 7. Connecting plate; 8. Support plate; 9. Rotating shaft; 10. Movable plate; 11. Support base; 12. Indicator needle; 13. Dial; 14. Fixed plate; 15. Positioning plate; 16. Telescopic rod; 17. Fixed clamp; 18. Fixed frame; 19. Reciprocating motor; 20. Screw; 21. Slide rail; 22. Slider; 23. Cylinder; 24. Mounting plate; 25. Laser welding machine; 26. Wire threading tube; 27. Welding wire body; 28. Wire feeding sleeve; 29. ​​Smoke tube; 30. Mounting cavity; 31. Water tank; 32. Connecting pipe; 33. Support frame; 34. Negative pressure motor; 35. Fan blade; 36. Filter plate; 37. Exhaust pipe; 38. Drain pipe; 39. Valve; 40. Control panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-4 As shown, a laser welding device for stainless steel flux-cored welding wire joints includes a worktable 1. A servo motor 2 is installed on one side of the worktable 1, and a threaded rod 3 is installed at the output end of the servo motor 2. A sliding groove 4 is formed inside the top side of the worktable 1, and a sliding block 5 is slidably installed inside the sliding groove 4. A screw hole is formed inside the bottom end of the sliding block 5. One end of the threaded rod 3 passes through the screw hole and is rotatably installed inside one side of the sliding groove 4. A mounting base 6 is installed on the top side of the sliding block 5. A connecting plate 7 is installed inside the mounting base 6 through a pin. Two support plates 8 are symmetrically installed at the middle of the top side of the worktable 1. A rotating shaft 9 is rotatably installed inside the support plate 8. A movable plate 10 is installed on the outside of the rotating shaft 9. A support base 11 is installed on the bottom side of the movable plate 10. The other end of the connecting plate 7 is installed inside the support base 11 through a pin. An indicator needle 12 is installed on the outside of one end of the rotating shaft 9. A scale 13 is installed on one side of the support plate 8.

[0024] A fixed plate 14 is installed at the other end of the top side of the workbench 1. A positioning plate 15 is installed at one edge of both the fixed plate 14 and the movable plate 10. A telescopic rod 16 is installed on the other side of both the fixed plate 14 and the movable plate 10. A fixed clamping plate 17 is installed at the working end of the telescopic rod 16.

[0025] A control panel 40 is installed on one side of the workbench 1. The control panel 40 is electrically connected to the electrical components inside the device. During operation, in practical applications, the metal shell of medical equipment often has multi-angle seams. In the existing technology, the welding angle is fixed, which can only perform welding operations at one angle on the plate. It is difficult to align the optimal welding position for complex seams. The servo motor 2 is started, and its output shaft drives the threaded rod 3 to rotate, so that the sliding block 5 will slide linearly in the slide groove 4. When the sliding block 5 moves, it drives the connecting plate 7 to move through the mounting seat 6. The connecting plate 7 and the support seat 11 are hinged by a pin. The push and pull of the connecting plate 7 will cause the movable plate 10 to rotate around the rotating shaft 9. The indicator needle 12, together with the scale 13 on one side of the support plate 8, can intuitively display the rotation angle of the movable plate 10. The operator can adjust the number of rotations and direction of the servo motor 2 through the control panel 40 according to the actual welding needs, and accurately control the tilt angle of the movable plate 10, so as to provide a suitable working surface for subsequent welding and improve the welding accuracy.

[0026] The metal plates are placed on the top sides of the fixed plate 14 and the movable plate 10 respectively and joined together. The positioning plate 15 is used for initial positioning. Then, the telescopic rod 16 is extended by the control panel 40. The working end of the telescopic rod 16 pushes the fixed clamping plate 17 to move towards the plate until the fixed clamping plates 17 on both sides tightly clamp the plate, ensuring that the plate is stable in position during welding and ensuring the accuracy and consistency of the weld.

[0027] Please see Figure 1 , 2 As shown in Figure 5, a fixed frame 18 is installed on the other side of the workbench 1, a reciprocating motor 19 is installed on one side of the fixed frame 18, a screw 20 is installed at the output end of the reciprocating motor 19, a slide rail 21 is provided inside the top side of the fixed frame 18, a slider 22 is slidably installed inside the slide rail 21, a threaded hole is provided inside the slider 22, and one end of the screw 20 passes through the threaded hole and is rotatably installed inside one side of the slide rail 21.

[0028] A cylinder 23 is mounted on the bottom side of the slider 22. A mounting plate 24 is mounted on the working end of the cylinder 23. A laser welding machine 25 is mounted on the bottom side of the mounting plate 24. A wire threading tube 26 is installed through one end of the mounting plate 24. A wire feeding sleeve 28 is fitted at one end of the wire threading tube 26. A welding wire body 27 is fitted through the wire feeding sleeve 28 inside the wire threading tube 26. One end of the welding wire body 27 is connected to an external welding wire spool.

[0029] A smoke extraction pipe 29 is installed through the other end of the mounting plate 24. One end of the smoke extraction pipe 29 is connected to a mounting cavity 30. A water tank 31 is installed on one side of the workbench 1. A connecting pipe 32, which is a rigid straight pipe, is installed through the inside of the water tank 31. The bottom side of the mounting cavity 30 is connected to the top side of the connecting pipe 32. A support frame 33 is installed inside the bottom end of the mounting cavity 30. A negative pressure motor 34 is installed at the top of the support frame 33. Three fan blades 35 are equidistantly installed at the output end of the negative pressure motor 34. A filter plate 36 is installed in the middle of the mounting cavity 30. An exhaust pipe 37 is connected to the top side of the water tank 31. A drain pipe 38 is installed on one side of the water tank 31. A valve 39 is installed inside the drain pipe 38. In the field of medical equipment, the metal shells of medical equipment are usually made of stainless steel plates. Precision welding can be achieved by using steel flux-cored welding wire laser welding, which ensures the accuracy and reliability of the device. At the same time, the weld has good corrosion resistance. Therefore, a stainless steel flux-cored welding wire joint laser welding device is needed. The reciprocating motor 19 is started, and its output shaft drives the screw 20 to rotate. The threaded hole inside the slider 22 is threadedly connected to the screw 20, so that the slider 22 makes reciprocating linear motion in the slide rail 21. The cylinder 23, the mounting plate 24 and the laser welding machine 25 move synchronously. The movement of the laser welding machine 25 along the weld direction of the plate ensures that the laser beam can completely and evenly cover the weld, meeting the welding requirements of welds of different lengths. The specific model of the laser welding machine 25 is QCW50.

[0030] After the laser welding machine 25 moves to the initial welding position, the cylinder 23 is lowered by the control panel 40. The cylinder 23 drives the mounting plate 24 and the laser welding machine 25 to move down, so that the welding head of the laser welding machine 25 is precisely aligned with the weld seam of the plate. At the same time, the welding wire body 27 on the external welding wire spool is transported to the welding position through the wire threading tube 26 and the wire feeding sleeve 28. At this time, the laser welding machine 25 is started. The high-energy laser beam melts the welding wire body 27 and the metal at the joint of the plate, forming a strong weld seam and improving the corrosion resistance and mechanical strength of the weld seam.

[0031] When the negative pressure motor 34 is started, the fan blades 35 at its output end rotate to generate suction. The high-temperature fumes generated during the welding process enter the installation cavity 30 through the smoke pipe 29 under negative pressure. The filter plate 36 intercepts and filters the welding slag particles and larger impurities in the fumes. Then, the pre-filtered fumes are pumped into the water tank 31 through the connecting pipe 32. The water in the water tank 31 performs secondary purification on the fumes, adsorbing fine particles and some odors in the fumes, thus improving the filtration effect. The purified gas is discharged through the exhaust pipe 37 on the top side of the water tank 31. The wastewater in the water tank 31 that has absorbed impurities can be periodically discharged and replaced by opening the valve 39 of the drain pipe 38. The impurities on the filter plate 36 can be treated through the discharge port of the installation cavity 30.

[0032] Working principle: When the servo motor 2 is started, its output shaft drives the threaded rod 3 to rotate, causing the sliding block 5 to slide linearly in the groove 4. When the sliding block 5 moves, it drives the connecting plate 7 to move through the mounting base 6. The connecting plate 7 and the support base 11 are hinged by a pin. The pushing and pulling of the connecting plate 7 will cause the movable plate 10 to rotate around the rotating shaft 9. The indicator needle 12, together with the scale 13 on one side of the support plate 8, can intuitively display the rotation angle of the movable plate 10. According to the actual welding requirements, the operator can adjust the number of rotations and direction of the servo motor 2 through the control panel 40 to accurately control the tilt angle of the movable plate 10, providing a suitable working surface for subsequent welding and improving the welding accuracy.

[0033] The metal plates are placed on the top sides of the fixed plate 14 and the movable plate 10 respectively and joined together. The positioning plate 15 is used for initial positioning. Then, the telescopic rod 16 is extended by the control panel 40. The working end of the telescopic rod 16 pushes the fixed clamping plate 17 to move towards the plate until the fixed clamping plates 17 on both sides tightly clamp the plate, ensuring that the plate is stable in position during welding and ensuring the accuracy and consistency of the weld.

[0034] When the reciprocating motor 19 is started, its output shaft drives the screw 20 to rotate. The threaded hole inside the slider 22 is threadedly connected to the screw 20, so that the slider 22 makes reciprocating linear motion in the slide rail 21. The cylinder 23, the mounting plate 24 and the laser welding machine 25 move synchronously. The movement of the laser welding machine 25 along the weld seam of the plate ensures that the laser beam can completely and evenly cover the weld seam, meeting the welding requirements of weld seams of different lengths. The specific model of the laser welding machine 25 is QCW50.

[0035] After the laser welding machine 25 moves to the initial welding position, the cylinder 23 is lowered by the control panel 40. The cylinder 23 drives the mounting plate 24 and the laser welding machine 25 to move down, so that the welding head of the laser welding machine 25 is precisely aligned with the weld seam of the plate. At the same time, the welding wire body 27 on the external welding wire spool is transported to the welding position through the wire threading tube 26 and the wire feeding sleeve 28. At this time, the laser welding machine 25 is started. The high-energy laser beam melts the welding wire body 27 and the metal at the joint of the plate, forming a strong weld seam and improving the corrosion resistance and mechanical strength of the weld seam.

[0036] When the negative pressure motor 34 is started, the fan blades 35 at its output end rotate to generate suction. The high-temperature fumes generated during the welding process enter the installation cavity 30 through the smoke pipe 29 under negative pressure. The filter plate 36 intercepts and filters the welding slag particles and larger impurities in the fumes. Then, the pre-filtered fumes are pumped into the water tank 31 through the connecting pipe 32. The water in the water tank 31 performs secondary purification on the fumes, adsorbing fine particles and some odors in the fumes, thus improving the filtration effect. The purified gas is discharged through the exhaust pipe 37 on the top side of the water tank 31. The wastewater in the water tank 31 that has absorbed impurities can be periodically discharged and replaced by opening the valve 39 of the drain pipe 38. The impurities on the filter plate 36 can be treated through the discharge port of the installation cavity 30.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A laser welding device for stainless steel flux-cored wire joints, characterized in that: The system includes a worktable (1), a servo motor (2) mounted on one side of the worktable (1), a threaded rod (3) mounted on the output end of the servo motor (2), a slide groove (4) inside the top side of the worktable (1), a sliding block (5) slidably mounted inside the slide groove (4), a threaded hole inside the bottom end of the sliding block (5), one end of the threaded rod (3) passing through the threaded hole and rotatably mounted inside one side of the slide groove (4), and a mounting base (6) mounted on the top side of the sliding block (5), the mounting base (6) being fitted with a pin inside. The workbench (1) is equipped with a connecting plate (7). Two support plates (8) are symmetrically installed at the top center of the workbench (1). A rotating shaft (9) is rotatably installed inside the support plate (8). A movable plate (10) is installed on the outside of the rotating shaft (9). A support base (11) is installed on the bottom side of the movable plate (10). The other end of the connecting plate (7) is installed inside the support base (11) through a pin. An indicator needle (12) is installed on the outside of one end of the rotating shaft (9). A dial (13) is installed on one side of the support plate (8).

2. The laser welding device for stainless steel flux-cored wire joints according to claim 1, characterized in that: A fixed plate (14) is installed on the other end of the top side of the workbench (1). A positioning plate (15) is installed on one side edge of both the fixed plate (14) and the movable plate (10). A telescopic rod (16) is installed on the other side of both the fixed plate (14) and the movable plate (10). A fixed clamping plate (17) is installed on the working end of the telescopic rod (16).

3. The laser welding device for stainless steel flux-cored wire joints according to claim 2, characterized in that: A fixed frame (18) is installed on the other side of the workbench (1). A reciprocating motor (19) is installed on one side of the fixed frame (18). A screw (20) is installed at the output end of the reciprocating motor (19). A slide rail (21) is provided inside the top side of the fixed frame (18). A slider (22) is slidably installed inside the slide rail (21). A threaded hole is provided inside the slider (22). One end of the screw (20) passes through the threaded hole and is rotatably installed inside one side of the slide rail (21).

4. The laser welding device for stainless steel flux-cored wire joints according to claim 3, characterized in that: A cylinder (23) is installed on the bottom side of the slider (22). An installation plate (24) is installed on the working end of the cylinder (23). A laser welding machine (25) is installed on the bottom side of the installation plate (24). A wire threading tube (26) is installed through one end of the installation plate (24). A wire feeding sleeve (28) is fitted at one end of the wire threading tube (26). A welding wire body (27) is fitted through the wire feeding sleeve (28) inside the wire threading tube (26). One end of the welding wire body (27) is connected to an external welding wire spool.

5. The laser welding device for stainless steel flux-cored wire joints according to claim 4, characterized in that: A smoking pipe (29) is installed through the other end of the mounting plate (24). One end of the smoking pipe (29) is connected to the mounting cavity (30). A water tank (31) is installed on one side of the workbench (1). A connecting pipe (32) is installed through the inside of the water tank (31). The connecting pipe (32) is a rigid pipe. The bottom side of the mounting cavity (30) is connected to the top side of the connecting pipe (32). A support frame (33) is installed inside the bottom end of the mounting cavity (30). A negative pressure motor (34) is installed at the top of the support frame (33). Three fan blades (35) are installed at equal intervals at the output end of the negative pressure motor (34). A filter plate (36) is installed in the middle of the mounting cavity (30). An exhaust pipe (37) is connected to the top side of the water tank (31). A drain pipe (38) is installed on one side of the water tank (31). A valve (39) is installed inside the drain pipe (38).

6. The laser welding device for stainless steel flux-cored wire joints according to claim 5, characterized in that: A control panel (40) is installed on one side of the workbench (1), and the control panel (40) is electrically connected to the electrical components inside the device.

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