Machining device for tailored blank laser welding production of metal powder

Abstract

The invention provides a machining device for metal powder tailored blank laser welding production. The machining device comprises a machining table, the machining table is connected with a welding room, the welding room is connected with a junction box, the junction box is provided with a magnetic attraction tool, the magnetic attraction tool is provided with a protective baffle, and the protective baffle is provided with a material frame; the welding room is connected with a welding head, the welding head is connected with a powder feeding pipe, the welding head is connected with a laser, the welding head is connected with a sealing ring, the sealing ring is connected with a powder storage barrel, the sealing ring is connected with a rotating disc, and the rotating disc is connected with a driving motor; the sealing ring is connected with an air pump which is connected with an air source. The powder flow is surrounded by the light beams emitted by the multiple lasers, powder can be fully melted on the molten pool and fused with the workpiece, meanwhile, the workpiece can be thoroughly welded, the workpiece is positioned and fixed through the magnetic attraction tool, the welding effect can be well improved, the feeding and discharging efficiency is improved, the production efficiency is improved, and the application cost is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door ring laser welding, and mainly relates to a processing device for metal powder laser welding production. Background Art

[0002] With the rapid development of China's economy and the increasing maturity of the automobile industry, the demand for automobiles is slowly increasing. In order to balance customer demand and R&D and production costs, automobile manufacturers have higher and higher requirements for the production capacity of production lines. The traditional welding of automobile door rings adopts laser wire feeding welding, which not only has low welding material utilization and low finished product yield, but also has a slow welding speed, which affects the work progress. In addition, the traditional tooling adopts dynamic pressure blocks, which is not only cumbersome to load and unload, but also has a decrease in accuracy after the pressure blocks are damaged for a long time, and the splicing accuracy cannot be guaranteed. Therefore, it is necessary to design a processing device for metal powder laser welding production to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a processing device for metal powder laser welding production, which adopts the method of laser wrapping metal powder to fully melt the powder, and can weld through the workpiece at the same time, and position the workpiece by magnetic suction tooling, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: A processing device for metal powder laser welding production, comprising a processing table, the top of the processing table is connected to a welding room, the two sides of the welding room are connected to a junction box, a magnetic suction tool is provided on one side of the junction box, a protective baffle is provided on one side of the magnetic suction tool, a material frame is provided on one side of the protective baffle, and the material frame, the protective baffle, the magnetic suction tool and the junction box are all connected to the processing table; The welding room is internally connected to a welding head, the bottom of the welding head is connected to a powder delivery pipe, the bottom of the welding head is connected to multiple lasers on the outside, one side of the top of the welding head is connected to a sealing ring through a pipeline, the top of the sealing ring is connected to a powder storage bucket, the inner wall of the sealing ring is rotatably connected to a turntable, the bottom of the turntable is connected to a drive motor, and one side of the drive motor is connected to the welding room; One side of the top of the sealing ring is connected to an air pump, and the top of the air pump is connected to an air source through an air pipe.

[0005] In the present invention, the magnetic suction fixture is convenient for positioning and fixing the workpiece, and the light beams emitted by the multiple lasers surround the powder flow of the powder feeding tube, which is convenient for fully melting the powder and can weld through the workpiece.

[0006] Furthermore, the magnetic suction tooling includes a tooling table connected to the top of the processing table, a plurality of contoured support plates of different sizes connected to the top of the tooling table, and a plurality of contoured electromagnets of different sizes connected to the top of the tooling table, wherein the contoured electromagnet is located between two adjacent contoured support plates.

[0007] In the present invention, the profiling electromagnet is convenient for sucking and fixing the workpiece, and the profiling support plate is convenient for supporting and leveling the workpiece.

[0008] Furthermore, a guide rail is fixed on the top of the processing table, and the top of the guide rail is slidably connected to the tooling table.

[0009] In the present invention, the guide rail facilitates the tooling table to move along a fixed route.

[0010] Furthermore, a dust collector is connected to one side of the top of the processing table, an electric cabinet is provided on one side of the dust collector, a water cooler is provided on one side of the electric cabinet, a laser heating device is provided on one side of the water cooler, and the laser heating device, the water cooler and the electric cabinet are all connected to the processing table.

[0011] In the present invention, the laser heating device is convenient for heating the workpiece to achieve preheating.

[0012] Furthermore, support columns are fixed at multiple corners and the center of the top of the workbench, and a hanging ring is fixed at the top of the support column.

[0013] In the present invention, the lifting ring is convenient for lifting the magnetic attraction tooling by a lifting device, so as to facilitate the replacement of the magnetic attraction tooling.

[0014] Furthermore, a plurality of brackets are connected to the top of the workbench, and positioning pins are fixed to the tops of the brackets, and the positioning pins are located on the sides of the contoured support plate.

[0015] In the present invention, the positioning pin facilitates positioning of the workpiece.

[0016] Furthermore, the laser adopts a small circular spot fiber laser, and the small circular spot fiber laser is a 10000W high-speed cladding fiber laser, and adopts a 4-6mm small circular spot.

[0017] In the present invention, the small circular spot fiber laser has high optical power density and concentrated energy, which can not only perform fast deep welding to achieve the effect of welding through the workpiece, but also have a wider weld width to improve the connection ability of the welding.

[0018] Furthermore, the gas inside the gas source is argon.

[0019] In the present invention, the argon gas can not only be used as a powder feeding gas, but also as a shielding gas to prevent oxidation of the molten pool or the appearance of pores.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The present invention positions the workpiece by a positioning pin and sucks the workpiece by a contoured electromagnet, which can greatly improve the welding effect and speed up the efficiency of loading and unloading. The turntable is driven by a driving motor to rotate, and the powder in the powder storage barrel enters the groove body of the turntable through the opening at the bottom. Then, the protective gas in the air source is blown into the powder feeding pipe by an air pump, and the powder flows out of the powder feeding pipe to form a powder flow. The powder flow is surrounded by light beams emitted by multiple lasers, which can fully melt the powder. The device welds the door ring with metal powder matching the composition of the workpiece, thereby improving the degree of fusion between the powder and the workpiece, thereby improving the weldability of the sheet, simplifying the process of door ring welding, improving production efficiency, and greatly reducing application costs. In addition, the light beam enveloping the powder flow can fully melt the powder in the molten pool and fuse it with the workpiece, and the workpiece can be welded through. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall top view of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention as a whole; Figure 3 It is a structural schematic diagram of the magnetic suction tooling of the present invention; Figure 4 It is a schematic diagram of the top view of the magnetic suction tooling of the present invention; Figure 5 It is a structural schematic diagram of the welding equipment of the present invention; Figure 6 It is a structural schematic diagram of the welding equipment of the present invention; Figure 7 It is the principle diagram of the light powder coating method of the present invention.

[0022] In the figure: 1. workpiece; 2. molten pool; 3. light beam; 4. powder flow; 10. processing table; 11. guide rail; 20. material frame; 30. magnetic tooling; 31. tooling table; 32. contour support plate; 33. contour electromagnet; 34. lifting ring; 35. positioning pin; 40. protective baffle; 50. junction box; 60. welding room; 61. welding head; 62. laser; 63. powder feeding pipe; 64. powder storage barrel; 65. driving motor; 66. air pump; 67. air source; 68. sealing ring; 69. turntable; 70. dust collector; 80. electric cabinet; 90. water cooler; 100. laser heating equipment. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The terms used herein and / or include any and all combinations of one or more related listed items.

[0026] For examples, please refer to the attached Figure 1-7 A processing device for metal powder laser welding production, comprising a processing table 10, the top of the processing table 10 is connected to a welding room 60, the two sides of the welding room 60 are connected to a junction box 50, a magnetic tool 30 is provided on one side of the junction box 50, a protective baffle 40 is provided on one side of the magnetic tool 30, a material frame 20 is provided on one side of the protective baffle 40, and the material frame 20, the protective baffle 40, the magnetic tool 30 and the junction box 50 are all connected to the processing table 10; The welding room 60 is internally connected to a welding head 61, the bottom of the welding head 61 is connected to a powder delivery pipe 63, the bottom of the welding head 61 is connected to multiple lasers 62 on the outside, the top of the welding head 61 is connected to a sealing ring 68 through a pipeline, the top of the sealing ring 68 is connected to a powder storage bucket 64, the inner wall of the sealing ring 68 is rotatably connected to a turntable 69, the bottom of the turntable 69 is connected to a drive motor 65, and one side of the drive motor 65 is connected to the welding room 60; One side of the top of the sealing ring 68 is connected to the air pump 66 , and the top of the air pump 66 is connected to the air source 67 through an air pipe.

[0027] It should be noted that, in this embodiment, the workpiece 1 is positioned and fixed by the magnetic suction fixture 30, the powder in the powder storage barrel 64 enters the slot body of the turntable 69 through the opening at the bottom, the turntable 69 is driven to rotate by the driving motor 65, and then the protective gas in the gas source 67 is blown into the powder feeding pipe 63 by the air pump 66, and the powder flows out of the powder feeding pipe 63 to form a powder flow 4. The powder flow 4 is surrounded by the light beams 3 emitted by the multiple lasers 62, so that the powder can be fully melted in the molten pool 2 and fused with the workpiece 1, and the workpiece 1 can be welded through, and the powder feeding rate is 0.4-1.6r / min, the welding rate is 1-3m / min, and the powder feeding pipe 63 adopts a tungsten steel tube.

[0028] For examples, please refer to the attached Figure 1-4 The magnetic suction tooling 30 includes a tooling table 31 connected to the top of the processing table 10, a plurality of contoured support plates 32 of different sizes connected to the top of the tooling table 31, and a plurality of contoured electromagnets 33 of different sizes connected to the top of the tooling table 31, wherein the contoured electromagnet 33 is located between two adjacent contoured support plates 32.

[0029] It should be noted that, in this embodiment, the contoured electromagnet 33 facilitates the suction of the workpiece 1 , thereby fixing the workpiece 1 and facilitating the installation and removal of the workpiece 1 , and the contoured support plate 32 facilitates the support and leveling of the workpiece 1 .

[0030] For examples, please refer to the attached Figure 1-2 A dust collector 70 is connected to one side of the top of the processing table 10, an electric cabinet 80 is provided on one side of the dust collector 70, a water cooler 90 is provided on one side of the electric cabinet 80, and a laser heating device 100 is provided on one side of the water cooler 90. The laser heating device 100, the water cooler 90 and the electric cabinet 80 are all connected to the processing table 10.

[0031] It should be noted that, in this embodiment, the laser heating device 100 is convenient for heating the workpiece 1 to achieve preheating, the water cooler 90 is convenient for cooling the electrical cabinet 80 and other equipment to avoid equipment failure caused by excessive temperature, and the dust collector 70 is convenient for dust removal.

[0032] For examples, please refer to the attached Figure 3-4 Support columns are fixed at multiple corners and the center of the top of the tooling table 31, and a hanging ring 34 is fixed on the top of the support column.

[0033] It should be noted that, in the present embodiment, the lifting ring 34 is convenient for lifting the magnetic fixture 30 by a lifting device, so as to facilitate replacement of the magnetic fixture 30 .

[0034] For examples, please refer to the attached Figure 3-4A plurality of brackets are connected to the top of the tooling table 31 , and a positioning pin 35 is fixed to the top of the bracket. The positioning pin 35 is located on the side of the contoured support plate 32 .

[0035] It should be noted that, in this embodiment, the positioning pin 35 is used to position the workpiece 1 to prevent the workpiece 1 from being offset.

[0036] For examples, please refer to the attached Figure 5-6 The laser 62 adopts a small circular spot fiber laser, and the small circular spot fiber laser is a 10000W high-speed cladding fiber laser, and adopts a 4-6mm small circular spot.

[0037] It should be noted that, in this embodiment, the small circular spot fiber laser has high optical power density and concentrated energy, which can not only perform fast deep welding to achieve the effect of penetrating the workpiece 1, but also have a wider weld width to improve the connection ability of the welding. The power of the small circular spot fiber laser is set to 2000-5000W.

[0038] For examples, please refer to the attached Figure 5-6 , the gas inside the gas source 67 is argon.

[0039] It should be noted that, in this embodiment, the argon gas can not only be used as a powder feeding gas, but also as a shielding gas to prevent oxidation of the molten pool 2 or the formation of pores.

[0040] The specific operation mode of the present invention is as follows: The present invention first places the workpiece 1 on the contoured support plate 32 and positions it through the positioning pin 35, then the contoured electromagnet 33 sucks the workpiece 1, moves the magnetic suction tool 30 to the welding room 60, and then drives the turntable 69 to rotate through the driving motor 65, and the powder in the powder storage barrel 64 enters the groove body of the turntable 69 through the opening at the bottom, and then the protective gas in the air source 67 is blown into the powder feeding pipe 63 through the air pump 66, and the powder flows out of the powder feeding pipe 63 to form a powder flow 4. The light beams 3 emitted by multiple lasers 62 surround the powder flow 4, which can fully melt the powder in the molten pool 2 and fuse with the workpiece 1, and at the same time, the workpiece 1 can be welded through.

[0041] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A processing device for metal powder laser welding production, comprising a processing table (10), characterized in that: The top of the processing table (10) is connected to a welding room (60), and the two sides of the welding room (60) are connected to a junction box (50); a magnetic tooling (30) is provided on one side of the junction box (50); a protective baffle (40) is provided on one side of the magnetic tooling (30); a material frame (20) is provided on one side of the protective baffle (40); and the material frame (20), the protective baffle (40), the magnetic tooling (30) and the junction box (50) are all connected to the processing table (10); The welding room (60) is internally connected to a welding head (61), the bottom of the welding head (61) is connected to a powder delivery pipe (63), the bottom of the welding head (61) is connected to a plurality of lasers (62) on the outside, the top of the welding head (61) is connected to a sealing ring (68) via a pipeline, the top of the sealing ring (68) is connected to a powder storage bucket (64), the inner wall of the sealing ring (68) is rotatably connected to a turntable (69), the bottom of the turntable (69) is connected to a drive motor (65), and one side of the drive motor (65) is connected to the welding room (60); One side of the top of the sealing ring (68) is connected to the air pump (66), and the top of the air pump (66) is connected to the air source (67) via an air pipe.

2. The processing device for metal powder laser welding production according to claim 1 is characterized in that: The magnetic attraction tool (30) comprises a tooling table (31) connected to the top of the processing table (10), a plurality of profiling support plates (32) of different sizes connected to the top of the tooling table (31), and a plurality of profiling electromagnets (33) of different sizes connected to the top of the tooling table (31), wherein the profiling electromagnet (33) is located between two adjacent profiling support plates (32).

3. The processing device for metal powder laser welding production according to claim 2 is characterized in that: A guide rail (11) is fixed on the top of the processing table (10), and the top of the guide rail (11) is slidably connected to the tooling table (31).

4. The processing device for metal powder laser welding production according to claim 1 is characterized in that: One side of the top of the processing table (10) is connected to a dust collector (70), an electric cabinet (80) is provided on one side of the dust collector (70), a water cooler (90) is provided on one side of the electric cabinet (80), and a laser heating device (100) is provided on one side of the water cooler (90); the laser heating device (100), the water cooler (90) and the electric cabinet (80) are all connected to the processing table (10).

5. The processing device for metal powder laser welding production according to claim 2 is characterized in that: Support columns are fixed at multiple corners and the center of the top of the tooling platform (31), and a hanging ring (34) is fixed at the top of the support column.

6. The processing device for metal powder laser welding production according to claim 2 is characterized in that: A plurality of brackets are connected to the top of the tooling table (31), and a positioning pin (35) is fixed to the top of the bracket. The positioning pin (35) is located on the side of the contoured support plate (32).

7. The processing device for metal powder laser welding production according to claim 1 is characterized in that: The laser (62) is a small circular spot fiber laser, and the small circular spot fiber laser is a 10,000W high-speed cladding fiber laser, and uses a 4-6 mm small circular spot.

8. The processing device for metal powder laser welding production according to claim 1 is characterized in that: The gas inside the gas source (67) is argon.

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