Laser welding device for hot-formed I-beam processing

Abstract

The present invention discloses a laser welding device for processing hot-formed I-beams, and relates to the technical field of laser welding. Nowadays, in the process of laser welding, the influence of ambient light on laser welding is mainly reflected in the beam quality, heat-affected zone, material damage, generation of photo-induced plasma, welding efficiency and yield, etc. In actual application operation, the laser welding device cannot reduce the adverse effect of ambient light on laser welding. The present invention can slow down the speed of metal corrosion and extend the service life of the I-beam by coating an anti-corrosion coating on the outer surface of the I-beam body. In addition, the design of a smoothing component is provided so that the welding table can slide on a smooth track, which is convenient for operation and adjustment of the welding position, and the use of an isolation component is combined to avoid the influence of ambient light on the welding quality, ensure the consistency of the lighting conditions in the welding area, and improve the welding stability and quality.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, in particular to a laser welding device for processing a hot-formed I-beam. Background Art

[0002] Laser welding technology, as an advanced welding method, uses high-energy laser beams to precisely weld metal plates of different materials, thicknesses or coatings together. This technology is widely used in the fields of automobile manufacturing, aerospace, etc., and the quality of its welds directly affects the mechanical properties and service life of the finished product.

[0003] In this regard, the patent document with publication number CN104002045A discloses a laser welding device, including a base, a bracket and a welding head fixedly connected to the bracket, two guide rails are arranged on the base directly below the bracket, a movable plate is arranged on the guide rail, a pair of fixed pressure strips for fixing the steel plates to be welded are arranged on the movable plate, the movable plate is connected to a stepper motor which drives it to move on the guide rail, the laser welding device adopts a welding head which is fixed, the steel plate is fixed on the movable plate, the movable plate is driven by the stepper motor to move on the guide rail, the stepper motor can ensure the uniform movement of the movable plate, drive the steel plate to pass through the welding head at a uniform speed for welding, thereby improving the stability of welding and making the weld uniform.

[0004] In this regard, the patent document with publication number CN201573006U discloses an automatic cleaning device for laser welding slag for laser welding equipment, which is installed on the anti-collision baffle of the laser welding equipment and includes a brush head, which is located on the movement path of the shuttle device of the laser welding equipment and is opposite to the inner wall of the shuttle device. When the shuttle device passes through the automatic cleaning device for laser welding slag, the brush head can automatically clean the slag and other debris accumulated on both sides of its inner wall, thereby ensuring the welding quality, improving production efficiency and eliminating safety hazards.

[0005] Nowadays, in the process of laser welding, the influence of ambient light on laser welding is mainly reflected in beam quality, heat-affected zone, material damage, generation of photo-induced plasma, welding efficiency and yield, etc. In actual application operation, laser welding equipment cannot reduce the adverse effects of ambient light on laser welding.

[0006] In view of the above problems, a laser welding device for processing hot-formed I-beams is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a laser welding device for processing a hot-formed I-beam, which solves the problem of the influence of ambient light on laser welding in the background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser welding device for processing a hot-formed I-beam, which is used for laser welding an I-beam body, wherein the outer surface of the I-beam body is coated with an anti-corrosion coating for preventing the I-beam body from rusting, an inner steel sheet is connected to the inner wall of the I-beam body, and an inner lining steel bar is connected to the bottom end of the inner steel sheet, and the inner lining steel bar is cross-arranged on the inner wall of the I-beam body to support the inner wall of the I-beam body, and the device for laser welding the I-beam body includes a welding frame, and a laser welding head is connected to the top of the welding frame, and the laser welding head emits laser to perform welding processing on the surface of the I-beam body;

[0009] The welding frame is also provided with a smoothing component, which includes an operating platform, a smoothing track is provided on the operating platform, a welding table is embedded in an inner point of the smooth track, the smooth track and the welding table are slidably connected, a matching groove is provided on the welding table, a support rod is embedded in the matching groove, the bottom end of the support rod is connected to the surface of the welding frame, and the support rod and the matching groove are slidably connected;

[0010] The top end of the support rod is connected to an isolation component, and the isolation component includes an isolation cylinder, the upper surface of the isolation cylinder is provided with heat dissipation holes, a fan is embedded in the interior of the isolation cylinder, the output end of the fan is connected to a heat dissipation impeller, the heat dissipation impeller is embedded in the interior of the isolation cylinder, an embedded separation cylinder is connected to the inner wall of the fan, the bottom end outer surface of the isolation cylinder is connected to an outer cover support cylinder, the outer cover support cylinder is wrapped around the isolation cylinder, the bottom end of the isolation cylinder is provided with an arc-shaped notch, the arc-shaped notch is provided on the front and rear side surfaces of the isolation cylinder, reserved notches are provided on the left and right sides of the outer cover support cylinder, and the outer cover support cylinder is wrapped around the arc-shaped notch.

[0011] Preferably, the bottom end of the outer cover support tube and the bottom end of the isolation tube are at the same height, the outer cover support tube and the isolation tube are attached to the upper surface of the I-beam body, and the isolation tube and the outer cover support tube are wrapped around the position on the I-beam body that needs to be welded.

[0012] Preferably, the internal space of the isolation cylinder is divided into three groups, namely, empty chamber No. 1 at the top of the isolation cylinder, empty chamber No. 2 located in the middle part of the isolation cylinder, and empty chamber No. 3 located at the bottom of the isolation cylinder. The internal diameter of empty chamber No. 2 is the largest, and the internal diameters of empty chamber No. 1 and empty chamber No. 3 are the same.

[0013] Preferably, the fan and the heat dissipation impeller are embedded in the No. 2 empty bin, the top end of the embedded partition cylinder is connected to the No. 1 empty bin, the bottom end of the embedded partition cylinder is connected to the No. 3 empty bin, and the embedded partition cylinder is used to connect the No. 1 empty bin, the No. 2 empty bin and the No. 3 empty bin.

[0014] Preferably, a cleaning assembly is installed on the inner wall of the No. 3 empty chamber in the isolation cylinder, and the cleaning assembly includes a suspension column, a reset spring is embedded in the interior of the suspension column, and a connecting rod is also embedded in the interior of the suspension column. The connecting rod and the suspension column are slidably connected, and the connecting rod and the reset spring are connected.

[0015] Preferably, a grinding strip is connected to the bottom end of the connecting rod, a grinding sheet for grinding metal materials is provided on the bottom surface of the grinding strip, and the grinding strip is arranged in a V-shape.

[0016] Preferably, an embedded arc tube is embedded in the reserved notch, and the embedded arc tube extends from the outside of the outer cover bracket to the inside of the outer cover bracket and surrounds the inner wall of the outer cover bracket.

[0017] Preferably, a conducting port is provided on the embedded arc tube, a filter strip is embedded in the embedded arc tube, both ends of the filter strip are connected with limiting posts, and the limiting posts are used to fix the filter strip inside the embedded arc tube.

[0018] Preferably, the opening position of the conducting port corresponds to the arc-shaped notch, and filter holes are provided on the surface of the filter strip.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a laser welding device for processing hot-formed I-beams. By coating an anti-corrosion coating on the outer surface of the I-beam body, the rate of metal corrosion can be slowed down and the service life of the I-beam can be extended. In addition, a smooth component design is provided so that the welding table can slide on a smooth track, which is convenient for operation and adjustment of the welding position. The use of an isolation component is combined to avoid the influence of ambient light on the welding quality, ensure the consistency of the lighting conditions in the welding area, and improve the welding stability and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the welding table and the matching groove of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the isolation tube and the heat dissipation hole of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the fan and the heat dissipation impeller of the present invention;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the isolation tube and the outer cover support tube of the present invention;

[0026] Figure 6It is a schematic diagram of the structure of the suspension column and the return spring of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the isolation tube and the outer cover support tube of the present invention;

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the outer cover support tube of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the conduction port and the filter strip of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the I-beam body of the present invention.

[0031] In the figure: 11. Welding frame; 12. Laser welding head; 2. Smoothing component; 21. Operating platform; 22. Smoothing track; 23. Welding table; 24. Matching groove; 25. Support rod; 3. Isolation component; 31. Isolation cylinder; 32. Heat dissipation hole; 33. Fan; 34. Heat dissipation impeller; 35. Embedded separation cylinder; 36. Outer cover support cylinder; 37. Arc-shaped notch; 38. Reserved notch; 4. Cleaning component; 41. Suspension column; 42. Reset spring; 43. Connecting rod; 44. Grinding strip; 45. Embedded arc tube; 46. Conducting port; 47. Filter strip; 48. Limiting column; 5. I-beam body; 6. Anti-corrosion coating; 7. Inner steel sheet; 8. Lining steel strip. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0034] Combination Figure 1-Figure 10 The laser welding device for processing a hot-formed I-beam of the present invention is used for laser welding an I-beam body 5. The outer surface of the I-beam body 5 is coated with an anti-corrosion coating 6 for preventing the I-beam body 5 from rusting. An inner steel sheet 7 is connected to the inner wall of the I-beam body 5. The bottom end of the inner steel sheet 7 is also connected to an inner lining steel bar 8. The inner lining steel bar 8 is cross-arranged on the inner wall of the I-beam body 5 to support the inner wall of the I-beam body 5.

[0035] When the inner steel sheet 7 and the I-beam body 5 are combined, they play a role in supporting the I-beam body 5. In addition, the inner steel sheet 7 is supported by the inner lining steel bar 8, so that the overall support is improved. By coating the anti-corrosion coating 6 on the surface of the I-beam body 5, the speed of metal corrosion can be slowed down and the service life of the I-beam body 5 can be extended.

[0036] The device for laser welding the I-beam body 5 comprises a welding frame 11, the top of which is connected to a laser welding head 12, which emits laser to perform welding on the surface of the I-beam body 5;

[0037] The welding frame 11 is also provided with a smoothing component 2, which includes an operating platform 21, on which a smoothing track 22 is provided, and a welding table 23 is embedded at an inner point of the smoothing track 22, and the smoothing track 22 and the welding table 23 are slidably connected, and a matching groove 24 is also provided on the welding table 23, and a support rod 25 is embedded in the matching groove 24, and the bottom end of the support rod 25 is connected to the surface of the welding frame 11, and the support rod 25 and the matching groove 24 are slidably connected;

[0038] In the laser welding, the I-beam body 5 is first installed on the welding table 23, and then the welding table 23 is passed through the laser welding head 12 to achieve welding. The specific operation is as follows:

[0039] During laser welding, a laser welding head 12 is used to emit a light source for welding. For ease of operation, the I-beam body 5 is first installed on the welding table 23 through a fixing piece, such as a spiral. Then, the welding table 23 is pushed so that the welding table 23 slides horizontally inside the smooth track 22. During the sliding process, the welding point of the I-beam body 5 is brought into contact with the light source emitted by the laser welding head 12 to complete the welding.

[0040] In laser welding, ambient light has a certain impact on the quality of laser welding. In order to avoid this problem affecting the quality of the weld, an isolation component 3 is set to solve the above problem. The specific operation is as follows:

[0041] The top of the support rod 25 is connected to an isolation component 3, and the isolation component 3 includes an isolation cylinder 31. A heat dissipation hole 32 is opened on the upper surface of the isolation cylinder 31. A fan 33 is embedded in the isolation cylinder 31. The output end of the fan 33 is connected to a heat dissipation impeller 34. The heat dissipation impeller 34 is embedded in the isolation cylinder 31. An embedded separation cylinder 35 is connected to the inner wall of the fan 33. The outer surface of the bottom end of the isolation cylinder 31 is connected to an outer cover support cylinder 36. The bottom end of the outer cover support cylinder 36 is at the same height as the bottom end of the isolation cylinder 31. The outer cover support cylinder 36 and the isolation cylinder 31 are attached to the upper surface of the I-beam body 5. The isolation cylinder 31 and the outer cover support cylinder 36 are wrapped around the position on the I-beam body 5 that needs to be welded. The outer cover support cylinder 36 is wrapped around the isolation cylinder 31, and the internal space of the isolation cylinder 31 is It is divided into three groups, namely, empty bin No. 1 at the top of the isolation tube 31, empty bin No. 2 located in the middle part of the isolation tube 31, and empty bin No. 3 located at the bottom of the isolation tube 31. The internal diameter of empty bin No. 2 is the largest, and the internal diameters of empty bin No. 1 and empty bin No. 3 are the same. The fan 33 and the heat dissipation impeller 34 are embedded in empty bin No. 2. The top of the embedded separation tube 35 is connected to empty bin No. 1, and the bottom end of the embedded separation tube 35 is connected to empty bin No. 3. The embedded separation tube 35 is used to connect empty bin No. 1, empty bin No. 2 and empty bin No. 3. An arc-shaped notch 37 is opened at the bottom end of the isolation tube 31, and the arc-shaped notch 37 is opened on the front and rear side surfaces of the isolation tube 31. Reserved notches 38 are opened on the left and right sides of the outer cover support tube 36, and the outer cover support tube 36 is wrapped around the arc-shaped notch 37.

[0042] During the welding process, the light source emitted by the laser welding head 12 falls vertically downward into the interior of the isolation tube 31, wherein the inner wall of the isolation tube 31 is coated with a black light-absorbing paint surface. The black paint surface of the inner wall can reduce the reflection of light inside. In addition, by isolating the welding point and the light source emitted by the welding from the external ambient light, the welding point position is not affected by the ambient light, so that the lighting conditions in the welding area can be guaranteed to be consistent. Under the premise of no excessive light changes, the lighting conditions do not change, and the parameters of the laser welding equipment do not need to be adjusted in time, so that the welding stability is relatively high, and the welding quality is also improved;

[0043] Of course, in the welding process, not only the light will affect the welding quality, but also the temperature. In order to reasonably control the temperature of the welding point, the fan 33 drives the heat dissipation impeller 34 to rotate, which drives the flow of internal air. During the air flow, the internal hot air can be discharged through the heat dissipation holes 32 to reduce the internal temperature. At the same time, the thick smoke generated during the welding process can also be eliminated. Eliminating the thick smoke can reduce the impact on the visual inspection system, so that the acquisition of weld information is more accurate and the image processing is more convenient.

[0044] In addition, before welding, grinding the welding point to remove impurities on the surface is beneficial to welding. The specific operation is as follows:

[0045] A cleaning assembly 4 is installed on the inner wall of the No. 3 empty bin in the isolation cylinder 31. The cleaning assembly 4 includes a suspension column 41. A return spring 42 is embedded in the suspension column 41. A connecting rod 43 is also embedded in the suspension column 41. The connecting rod 43 and the suspension column 41 are slidably connected. The connecting rod 43 and the return spring 42 are connected. A grinding strip 44 is connected to the bottom end of the connecting rod 43. A grinding sheet for grinding metal materials is provided on the bottom surface of the grinding strip 44. The grinding strip 44 is arranged in a V shape.

[0046] An embedded arc tube 45 is embedded in the reserved notch 38. The embedded arc tube 45 extends from the outside of the outer cover bracket 36 to the inside of the outer cover bracket 36 and surrounds the inner wall of the outer cover bracket 36. A conduction port 46 is provided on the embedded arc tube 45. A filter strip 47 is also embedded in the embedded arc tube 45. The two ends of the filter strip 47 are connected to limit posts 48. The limit posts 48 are used to fix the filter strip 47 in the embedded arc tube 45. The opening position of the conduction port 46 corresponds to the arc notch 37. The surface of the filter strip 47 is provided with filter holes. When the interior is polished, the isolation tube 31 and the outer cover bracket 36 are attached to the upper surface of the I-beam body 5. The polishing strip 47 is also performed while the attachment is performed. 4 is also attached to the I-beam body 5. As the translation of the welding table 23 drives the movement of the I-beam body 5, the grinding strip 44 will grind the upper surface of the I-beam body 5 during the movement. The debris generated after grinding can be pushed and dispersed by the V-shaped design of the grinding strip 44. The grinding debris can be separated to both sides to avoid accumulation. Then, as one side of the embedded arc tube 45 is connected to the dust collection device, under the action of suction, the grinding debris can be introduced into the inside of the guide port 46 through the arc notch 37. As the debris is sucked into the inside of the embedded arc tube 45, it can be filtered through the filter strip 47 to eliminate impurities.

[0047] In the process of ensuring the processing of internal debris, in order to prevent the entry of external ambient light and affect welding, two groups of arc-shaped notches 37 are opened and both are wrapped by the outer cover support tube 36. In addition, a reserved notch 38 is opened on the outer cover support tube 36 and does not correspond to the arc-shaped notch 37. This can prevent external ambient light from entering the interior of the isolation tube 31. Finally, during the discharge of welding debris, it can also be guided by the filter strip 47 and pushed to the vicinity of the arc-shaped notch 37, thereby preventing excessive redundant debris inside the isolation tube 31 from affecting welding.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser welding device for hot-formed I-beam processing, used for laser welding an I-beam body (5), characterized in that: The outer surface of the I-beam body (5) is coated with an anti-corrosion coating (6) for preventing the I-beam body (5) from rusting; an inner steel sheet (7) is connected to the inner wall of the I-beam body (5); the bottom end of the inner steel sheet (7) is also connected to an inner lining steel bar (8); the inner lining steel bar (8) is cross-arranged on the inner wall of the I-beam body (5) and is used to support the inner wall of the I-beam body (5); the device for laser welding the I-beam body (5) comprises a welding frame (11); the top end of the welding frame (11) is connected to a laser welding head (12); the laser welding head (12) emits laser to perform welding on the surface of the I-beam body (5); The welding frame (11) is also provided with a smoothing component (2), the smoothing component (2) comprising an operating platform (21), the operating platform (21) being provided with a smoothing track (22), a welding table (23) being embedded at an inner point of the smoothing track (22), the smoothing track (22) and the welding table (23) being slidably connected, the welding table (23) being provided with a matching groove (24), a support rod (25) being embedded in the matching groove (24), the bottom end of the support rod (25) being connected to the surface of the welding frame (11), the support rod (25) and the matching groove (24) being slidably connected; The top end of the support rod (25) is connected to an isolation component (3), the isolation component (3) comprising an isolation cylinder (31), the upper surface of the isolation cylinder (31) being provided with heat dissipation holes (32), a fan (33) being embedded in the isolation cylinder (31), the output end of the fan (33) being connected to a heat dissipation impeller (34), the heat dissipation impeller (34) being embedded in the isolation cylinder (31), an embedded separation cylinder (35) being connected to the inner wall of the fan (33), the outer surface of the bottom end of the isolation cylinder (31) being connected to an outer cover support cylinder (36), the outer cover support cylinder (36) being wrapped around the isolation cylinder (31), an arc-shaped notch (37) being provided at the bottom end of the isolation cylinder (31), the arc-shaped notch (37) being provided on the front and rear side surfaces of the isolation cylinder (31), reserved notches (38) being provided on the left and right sides of the outer cover support cylinder (36), the outer cover support cylinder (36) being wrapped around the arc-shaped notch (37); The bottom end of the outer cover support tube (36) and the bottom end of the isolation tube (31) are at the same height; the outer cover support tube (36) and the isolation tube (31) are attached to the upper surface of the I-beam body (5); the isolation tube (31) and the outer cover support tube (36) are wrapped around the position on the I-beam body (5) that needs to be welded; the internal space of the isolation tube (31) is divided into three groups, namely, a No. 1 empty bin at the top end of the isolation tube (31), a No. 2 empty bin located in the middle part of the isolation tube (31), and a No. 3 empty bin located at the bottom end of the isolation tube (31); the No. 2 empty bin has the largest internal diameter, and the No. 1 empty bin and the No. 3 empty bin have the same internal diameter.

2. The laser welding device for hot-formed I-beam processing according to claim 1 is characterized in that: The fan (33) and the heat dissipation impeller (34) are embedded in the No. 2 empty bin, the top end of the embedded partition cylinder (35) is connected to the No. 1 empty bin, and the bottom end of the embedded partition cylinder (35) is connected to the No. 3 empty bin, and the embedded partition cylinder (35) is used to connect the No. 1 empty bin, the No. 2 empty bin, and the No. 3 empty bin.

3. The laser welding device for hot-formed I-beam processing according to claim 2 is characterized in that: A cleaning assembly (4) is installed on the inner wall of the No. 3 empty chamber in the isolation cylinder (31), and the cleaning assembly (4) comprises a suspension column (41), a return spring (42) is embedded in the interior of the suspension column (41), and a connecting rod (43) is also embedded in the interior of the suspension column (41), the connecting rod (43) and the suspension column (41) are slidably connected, and the connecting rod (43) and the return spring (42) are connected.

4. The laser welding device for processing a hot-formed I-beam according to claim 3, characterized in that: The bottom end of the connecting rod (43) is connected to a grinding strip (44), the bottom surface of the grinding strip (44) is provided with a grinding sheet for grinding metal materials, and the grinding strip (44) is arranged in a V-shape.

5. The laser welding device for processing a hot-formed I-beam according to claim 1, characterized in that: An embedded arc tube (45) is embedded inside the reserved notch (38); the embedded arc tube (45) extends from the outside of the outer cover support tube (36) to the inside of the outer cover support tube (36) and surrounds the inner wall of the outer cover support tube (36).

6. The laser welding device for processing a hot-formed I-beam according to claim 5, characterized in that: The embedded arc tube (45) is provided with a conducting port (46), and a filter strip (47) is also embedded inside the embedded arc tube (45). Both ends of the filter strip (47) are connected to limiting posts (48), and the limiting posts (48) are used to fix the filter strip (47) inside the embedded arc tube (45).

7. The laser welding device for processing a hot-formed I-beam according to claim 6, characterized in that: The opening position of the conduction port (46) corresponds to the arc-shaped notch (37), and filter holes are provided on the surface of the filter strip (47).

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