A processing device for laser tailor welding of metal powder

Abstract

The application provides a processing device for metal powder laser tailor welding production, which comprises a processing table, wherein the processing table is connected with a welding house, the welding house is connected with a junction box, the junction box is provided with a magnetic tool, the magnetic tool is provided with a protective baffle, and the protective baffle is provided with a material frame; the welding house 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, and the air pump is connected with an air source. The light beams emitted by multiple lasers surround the powder flow, can sufficiently melt the powder on the molten pool and fuse with the workpiece, can weld through the workpiece at the same time, can well improve the welding effect through the positioning and fixing of the workpiece by the magnetic tool, can accelerate the feeding and discharging efficiency, can improve the production efficiency, and can greatly reduce the application cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser welding of automobile door rings, and particularly relates to a processing device for laser welding of metal powder. BACKGROUND

[0002] With the rapid development of China's economy and the maturation of the automobile industry, the demand for automobiles is slowly increasing. Automobile manufacturers are increasingly demanding production capacity of production lines while balancing customer demand and research and development and production costs; traditional welding of automobile door rings uses a laser wire feeding welding method, which not only has low welding material utilization and low product yield, but also has a slow welding speed, thereby affecting the work progress, and the traditional tooling adopts a dynamic pressure block form, which not only complicates feeding and discharging, but also causes precision to decrease after long-time pressure block damage, and cannot guarantee splicing precision, so a processing device for laser welding of metal powder needs to be designed to solve the above problems. SUMMARY

[0003] The present application aims to provide a processing device for laser welding of metal powder, which fully melts the powder by using a laser metal powder package, can weld through the workpiece, and positions the workpiece by a magnetic tooling, so as to solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a processing device for laser welding of metal powder, comprising a processing table, wherein the top of the processing table is connected with a welding house, the two sides of the welding house are connected with junction boxes, a magnetic tooling is arranged on one side of the junction box, a protective baffle is arranged on one side of the magnetic tooling, a material frame is arranged on one side of the protective baffle, and the material frame, the protective baffle, the magnetic tooling and the junction boxes are connected with the processing table.

[0005] The welding head is connected inside the welding house, the bottom of the welding head is connected with a powder feeding pipe, the outer side of the bottom of the welding head is connected with a plurality of lasers, one side of the top of the welding head is connected with a sealing ring through a pipeline, the top of the sealing ring is connected with a powder storage barrel, the inner wall of the sealing ring is rotationally connected with a turntable, the bottom of the turntable is connected with a driving motor, and one side of the driving motor is connected with the welding house.

[0006] The top of the sealing ring is connected with an air pump on one side, and the top of the air pump is connected with an air source through an air pipe.

[0007] In the present application, the magnetic tooling is convenient for positioning and fixing the workpiece, the light beams emitted by the plurality of lasers surround the powder flow of the powder feeding pipe, which is convenient for fully melting the powder and welding through the workpiece.

[0008] Further, the magnetic attraction tooling includes a tooling table connected to the top of the machining table, a plurality of profiled support plates of different sizes connected to the top of the tooling table, and a plurality of profiled electromagnets of different sizes connected to the top of the tooling table, the profiled electromagnets being located between two adjacent profiled support plates.

[0009] In the present application, the profiled electromagnets facilitate the clamping of the workpiece, and the profiled support plates facilitate the support and flattening of the workpiece.

[0010] Further, a guide rail is fixed to the top of the machining table, and the tooling table is slidingly connected to the top of the guide rail.

[0011] In the present application, the guide rail facilitates the movement of the tooling table along a fixed route.

[0012] Further, a dust removal machine is connected to one side of the top of the machining table, an electric cabinet is arranged on one side of the dust removal machine, a water cooling machine is arranged on one side of the electric cabinet, and a laser heating device is arranged on one side of the water cooling machine, the laser heating device, the water cooling machine, and the electric cabinet being connected to the machining table.

[0013] In the present application, the laser heating device facilitates the heating of the workpiece, achieving preheating.

[0014] Further, support columns are fixed to the top corners and the center of the top of the tooling table, and lifting rings are fixed to the top of the support columns.

[0015] In the present application, the lifting rings facilitate the lifting of the magnetic attraction tooling by lifting equipment, and facilitate the replacement of the magnetic attraction tooling.

[0016] Further, a plurality of supports are connected to the top of the tooling table, positioning pins are fixed to the top of the supports, and the positioning pins are located on the side surfaces of the profiled support plates.

[0017] In the present application, the positioning pins facilitate the positioning of the workpiece.

[0018] Further, the laser adopts a small circular spot fiber laser, the small circular spot fiber laser is a 10000W high-speed cladding fiber laser, and a 4-6mm small circular spot is adopted.

[0019] In the present application, the small circular spot fiber laser has high optical power density and concentrated energy, can not only perform rapid deep welding to achieve the effect of welding through the workpiece, but also has a relatively wide fusion width, improving the connection ability of the tailor-welded joint.

[0020] Further, the gas in the gas source is argon.

[0021] In the present application, the argon not only can be used as powder feeding gas, but also can act as a protective gas to avoid oxidation of the molten pool or the presence of pores.

[0022] Compared with the prior art, the present application has the beneficial effects that:

[0023] The present application can improve the welding effect and accelerate the feeding and discharging efficiency by positioning the workpiece with the positioning pin and attracting the workpiece with the profiled electromagnet. The powder in the powder storage barrel enters the groove of the rotating disc through the opening at the bottom, and then the protective gas in the gas source blows the powder in the rotating disc into the powder feeding pipe through the air pump. The light beams emitted by the multiple lasers surround the powder flow, which can fully melt the powder. The device uses metal powder matching the composition of the workpiece to weld the door ring, which improves the fusion degree between the powder and the workpiece, and thus improves the weldability of the sheet metal. The process of door ring welding is simplified, the production efficiency is improved, and the application cost is greatly reduced. The light beam surrounds the powder flow, which can fully melt the powder on the molten pool and fuse with the workpiece, and at the same time, the workpiece can be welded through. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic view of the overall top structure of the present application;

[0025] Figure 2 It is a schematic view of the overall front structure of the present application;

[0026] Figure 3 It is a schematic view of the structure of the magnetic tool of the present application;

[0027] Figure 4 It is a schematic view of the top structure of the magnetic tool of the present application;

[0028] Figure 5 It is a schematic view of the structure of the welding equipment of the present application;

[0029] Figure 6 It is a schematic view of the structure of the welding equipment of the present application;

[0030] Figure 7 It is a schematic view of the principle of the light-enclosed powder method.

[0031] In the figure: 1, workpiece; 2, molten pool; 3, light beam; 4, powder flow; 10, machining table; 11, guide rail; 20, material frame; 30, magnetic tool; 31, tool table; 32, profiled support plate; 33, profiled electromagnet; 34, lifting ring; 35, positioning pin; 40, protective baffle; 50, junction box; 60, welding house; 61, welding head; 62, laser; 63, powder feeding pipe; 64, powder storage barrel; 65, driving motor; 66, air pump; 67, gas source; 68, sealing ring; 69, rotating disc; 70, dust collector; 80, electric cabinet; 90, water cooler; 100, laser heating equipment. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present application, a more comprehensive description will be made below with reference to the relevant drawings, which show several embodiments of the present application. However, the present application can be realized in different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety.

[0035] Embodiment, please refer to the attached Figures 1-7 A processing device for metal powder laser tailor welding production, comprising a processing table 10, the top of the processing table 10 is connected with a welding house 60, the welding house 60 is connected with a terminal box 50 on both sides, a magnetic tool 30 is arranged on one side of the terminal box 50, a protective baffle 40 is arranged on one side of the magnetic tool 30, and a material frame 20 is arranged on one side of the protective baffle 40, the material frame 20, the protective baffle 40, the magnetic tool 30 and the terminal box 50 are all connected with the processing table 10;

[0036] The welding head 61 is connected inside the welding house 60, the powder feeding pipe 63 is connected at the bottom of the welding head 61, a plurality of lasers 62 are connected at the bottom of the welding head 61 and outside, the sealing ring 68 is connected at one side of the top of the welding head 61 through a pipe, the powder storage barrel 64 is connected at the top of the sealing ring 68, the rotating disc 69 is rotatably connected to the inner wall of the sealing ring 68, the driving motor 65 is connected at the bottom of the rotating disc 69, and the driving motor 65 is connected with the welding house 60 on one side;

[0037] The gas pump 66 is connected at one side of the top of the sealing ring 68, and the gas source 67 is connected with the gas pump 66 through a gas pipe.

[0038] It should be noted that in the embodiment, the workpiece 1 is positioned and fixed by the magnetic tool 30, the powder in the powder storage barrel 64 enters the groove of the rotating disc 69 through the opening at the bottom, the rotating disc 69 is driven to rotate by the driving motor 65, then the powder in the rotating disc 69 is blown into the powder feeding pipe 63 by the protective gas in the gas source 67 through the air pump 66, the powder flows out of the powder feeding pipe 63 to form a powder flow 4, the light beams 3 emitted by the plurality of lasers 62 surround the powder flow 4, the powder can be fully melted on the molten pool 2 and fused with the workpiece 1, and the workpiece 1 can be penetrated at the same time, the powder feeding rate is 0.4-1.6r / min, the welding rate is 1-3m / min, and the powder feeding pipe 63 is made of tungsten steel pipe.

[0039] Embodiment, please refer to the attached Figures 1-4 The magnetic tool 30 includes a tool table 31 connected to the top of the machining table 10, a plurality of profiled support plates 32 of different sizes connected to the top of the tool table 31, and a plurality of profiled electromagnets 33 of different sizes connected to the top of the tool table 31, and the profiled electromagnets 33 are located between two adjacent profiled support plates 32.

[0040] It should be noted that in the embodiment, the profiled electromagnets 33 are convenient for tightly holding the workpiece 1, thereby fixing the workpiece 1, and are convenient for installing and dismounting the workpiece 1, and the profiled support plates 32 are convenient for supporting and flattening the workpiece 1.

[0041] Embodiment, please refer to the attached Figures 1-2 One side of the top of the machining table 10 is connected to a dust removal machine 70, one side of the dust removal machine 70 is provided with an electric cabinet 80, one side of the electric cabinet 80 is provided with a water cooling machine 90, and one side of the water cooling machine 90 is provided with a laser heating device 100, and the laser heating device 100, the water cooling machine 90 and the electric cabinet 80 are connected with the machining table 10.

[0042] It should be noted that in the embodiment, the laser heating device 100 is convenient for heating the workpiece 1 to achieve preheating, the water cooling machine 90 is convenient for cooling the electric cabinet 80 and other equipment to avoid equipment failure caused by excessive temperature, and the dust removal machine 70 is convenient for dust removal.

[0043] Embodiment, please refer to the attached Figures 3-4 A plurality of support columns are fixed at the top corners and the center of the top of the tool table 31, and a lifting ring 34 is fixed at the top of the support column.

[0044] It should be noted that in the embodiment, the lifting ring 34 is convenient for lifting the magnetic tool 30 by lifting equipment, thereby facilitating replacement of the magnetic tool 30.

[0045] Embodiment, please refer to the attached Figures 3-4The tooling table 31 is connected with a plurality of supports on the top, and a positioning pin 35 is fixed on the top of the supports and located on the side of the profiling support plate 32.

[0046] It should be noted that in the embodiment, the positioning pin 35 is used to position the workpiece 1, so as to avoid the deviation of the workpiece 1.

[0047] Embodiment, please refer to the accompanying drawings Figures 5-6 The laser 62 is a small round spot fiber laser, and the small round spot fiber laser is a 10000W high-speed cladding fiber laser and adopts a 4-6mm small round spot.

[0048] It should be noted that in the embodiment, the small round spot fiber laser has high optical power density and concentrated energy, so as to not only perform rapid deep welding and achieve the effect of welding through the workpiece 1, but also have a wider fusion width, so as to improve the connection ability of the tailor-welding.

[0049] Embodiment, please refer to the accompanying drawings Figures 5-6 The gas in the gas source 67 is argon.

[0050] It should be noted that in the embodiment, the argon can not only be used as powder feeding gas, but also can be used as protective gas to avoid the oxidation or porosity of the molten pool 2.

[0051] The specific operation mode of the present application is as follows:

[0052] Firstly, the workpiece 1 is placed on the profiling support plate 32 and positioned by the positioning pin 35, then the workpiece 1 is tightly attracted by the profiling electromagnet 33, the magnetic attraction tooling 30 is moved to the welding room 60, then the driving motor 65 drives the rotating disc 69 to rotate, the powder in the powder storage barrel 64 enters the groove of the rotating disc 69 through the bottom opening, then the protective gas in the gas source 67 blows the powder in the rotating disc 69 into the powder feeding pipe 63 through the air pump 66, the powder flows out from the powder feeding pipe 63 to form a powder flow 4, the light beams 3 emitted by the plurality of lasers 62 surround the powder flow 4, so as to sufficiently melt the powder on the molten pool 2 and fuse with the workpiece 1, and at the same time, the workpiece 1 can be welded through.

[0053] The present application has been described above with reference to the drawings, and it is obvious that the specific implementation of the present application is not limited to the above manner, as long as the method concept and technical solution of the present application are adopted for such non-essential improvement, or the concept and technical solution of the present application are directly applied to other occasions without improvement, which are all within the protection scope of the present application.

Claims

1. A processing apparatus for producing metal powder by laser welding, comprising a processing table (10), characterized in that: The top of the processing table (10) is connected to the welding chamber (60), and the welding chamber (60) is connected to the junction boxes (50) on both sides. A magnetic suction fixture (30) is provided on one side of the junction box (50), a protective baffle (40) is provided on one side of the magnetic suction fixture (30), and a material frame (20) is provided on one side of the protective baffle (40). The material frame (20), the protective baffle (40), the magnetic suction fixture (30) and the junction box (50) are all connected to the processing table (10). The welding chamber (60) is connected to a welding head (61) inside. The bottom of the welding head (61) is connected to a powder feeding pipe (63). Multiple lasers (62) are connected to the outer side of the bottom of the welding head (61). A sealing ring (68) is connected to the top of the welding head (61) through a pipe. A powder storage tank (64) is connected to the top of the sealing ring (68). A turntable (69) is rotatably connected to the inner wall of the sealing ring (68). A drive motor (65) is connected to the bottom of the turntable (69). One side of the drive motor (65) is connected to the welding chamber (60). The top side of the sealing ring (68) is connected to an air pump (66), and the top of the air pump (66) is connected to an air source (67) through an air pipe; The magnetic fixture (30) includes a fixture table (31) connected to the top of the processing table (10), a plurality of contour support plates (32) of different sizes connected to the top of the fixture table (31), and a plurality of contour electromagnets (33) of different sizes connected to the top of the fixture table (31). The contour electromagnets (33) are located between two adjacent contour support plates (32). The laser (62) is a small circular spot fiber laser, and the small circular spot fiber laser is a 10000W high-speed cladding fiber laser, and uses a 4-6mm small circular spot. The gas inside the gas source (67) is argon.

2. The processing apparatus for metal powder laser welding production according to claim 1, characterized in that: The top of the processing table (10) is fixed with a guide rail (11), and the top of the guide rail (11) is slidably connected to the tooling table (31).

3. The processing apparatus for metal powder laser welding production according to claim 1, characterized in that: A dust collector (70) is connected to one side of the top of the processing table (10). An electrical cabinet (80) is located on one side of the dust collector (70). A water chiller (90) is located on one side of the electrical cabinet (80). A laser heating device (100) is located on one side of the water chiller (90). The laser heating device (100), the water chiller (90), and the electrical cabinet (80) are all connected to the processing table (10).

4. The processing apparatus for laser welding of metal powder according to claim 1, characterized in that: Support columns are fixed at multiple apex corners and the center of the tooling table (31), and lifting rings (34) are fixed at the top of the support columns.

5. The processing apparatus for metal powder laser welding production according to claim 1, characterized in that: The tooling table (31) is connected to a number of brackets on the top, and a positioning pin (35) is fixed on the top of the bracket. The positioning pin (35) is located on the side of the contour support plate (32).

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