Laser continuous welding H-beam production equipment

Abstract

A laser continuous welding H-beam production device includes a laser welding unit, a feeding device, a discharging device, and a machine base. The feeding device includes two parallel movable frames, and a forward and reverse screw adjustment mechanism controls the distance between the two movable frames. Multiple abutment legs are vertically connected to both sides of the frame base. Corresponding fixed roller supports and adjustable roller supports are vertically connected to the inner sides of two corresponding abutment legs. Two corresponding clamping rollers are used to clamp the web plate. Two corresponding straightening rollers are used to clamp the flange plates between their sides and the feeding timing belt. Laser welding reduces energy consumption and produces aesthetically pleasing welds. The two movable frames adjust the width of the web plate, facilitating the introduction of web plates of different specifications by workers. The adjustable roller supports adjust the distance between themselves and the fixed roller supports, facilitating the introduction of flange plates of different specifications by workers, making the process convenient and fast.

Description

Technical Field

[0001] This invention belongs to the field of steel profile manufacturing technology, and in particular relates to a laser continuous welding H-beam production device. Background Technology

[0002] H-beams are a widely used and economical type of steel section, with applications in railways, infrastructure, construction, and machinery industries. There are currently three main production processes: the first is hot-rolled H-beams, produced directly by large steel companies or by heating steel billets and rolling them using a universal rolling mill; the second process involves cutting hot-rolled medium plates or leveled steel plates into flanges and webs, assembling them, and then producing welded H-beams using submerged arc welding or electric arc welding; the third process is high-frequency welded H-beams, which uses longitudinally sheared and coiled hot-rolled coils as raw materials, employing high-frequency welding to weld continuously fed strips of steel into H-beams, which are then cut online to the appropriate lengths.

[0003] Currently, lightweight thin-walled H-beams are mainly manufactured using a third production process. The H-beam has two corresponding flanges and a web welded in the middle. In the high-frequency welding process, H-beams can be produced continuously, the length of the H-beam can be customized, and the cost is relatively low.

[0004] However, in the high-frequency welding process of H-beams, the welding uses a high-frequency power supply, which consumes a lot of energy; when welding adjacent web plates and flanges, unsightly weld beads will be generated due to molten extrusion, and these cannot be eliminated; the two high-frequency power supplies have complex structures, and interference will occur when welding steel sections at the same time, so the welding specifications are limited and smaller specifications cannot be produced. Summary of the Invention

[0005] In view of this, the present invention aims to propose a laser continuous welding H-beam production device to solve the technical problems existing in the prior art, such as the high energy consumption of high-frequency power supply used in high-frequency welding of H-beams; the unsightly weld beads generated by melting and extrusion when welding adjacent web plates and flanges, which cannot be eliminated; and the complex structure of two high-frequency power supplies, which will interfere with each other when welding at the same time, thus limiting the welding specifications and making it impossible to produce smaller specifications.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0007] A laser continuous welding H-beam production device includes a laser welding unit, a feeding device, a discharging device, and a machine base;

[0008] The top surface of the machine base is fixedly connected to a laser welding unit, a feeding device, and a discharging device. There are two sets of corresponding laser welding units. The feeding device and the discharging device are arranged symmetrically about the laser welding unit.

[0009] A protective frame is connected to the base of the machine body, and a space can be formed between the protective frame and the base of the machine body. The space is used to accommodate the laser welding unit, the feeding device, and the discharging device.

[0010] The feeding device includes two movable frames that are parallel to each other. A positive and negative screw adjustment mechanism is connected between the two movable frames to control the distance between the two movable frames.

[0011] The movable frame includes abutment legs and frame bases. There are multiple abutment legs, which are fixedly connected to both sides of the frame base. The two movable frames are staggered and interlocked, with the outer ends of the abutment legs abutting against another frame base. The movable frame is slidably connected between the base of the machine body and the protective frame.

[0012] The inner sides of the two corresponding abutting legs are respectively vertically connected to corresponding fixed roller supports and adjustable roller supports. The fixed roller supports and adjustable roller supports are respectively connected to straightening rollers. The straightening rollers can rotate around the vertical direction. The bottom of the straightening rollers is provided with clamping wheels. The clamping wheels can rotate around the horizontal direction. The corresponding clamping wheels are used to clamp the web plate.

[0013] The fixed roller support and the adjustable roller support are respectively connected to the wing plate straightening roller. The wing plate straightening roller is located outside the straightening roller, and the two corresponding wing plate straightening rollers are used to clamp the wing plate.

[0014] Furthermore, a clamping and synchronous operating mechanism is connected to the movable frame. The clamping and synchronous operating mechanism includes a synchronous pulley and a clamping synchronous belt. There are multiple synchronous pulleys. The clamping synchronous belt is sleeved on the synchronous pulley, and the outer side of the clamping synchronous belt is used to abut against the outer side of the wing plate.

[0015] Furthermore, the adjustable roller support is equipped with an elastic lifting device, allowing the height of the adjustable roller support to be adjusted vertically.

[0016] A lifting mechanism is connected to the wing plate straightening roller, which can adjust the distance between the corresponding two wing plate straightening rollers.

[0017] Furthermore, the inner top surface of the protective frame is provided with a first sliding groove, and the outer side of one side of the abutment leg is provided with a first slider, which can be slidably connected in the first sliding groove.

[0018] Furthermore, the top surface of the base is provided with a second sliding groove, and the outer side of the abutment leg on the other side is provided with a second slider, which can be slidably connected in the second sliding groove.

[0019] Compared with existing technologies, the laser continuous welding H-beam production apparatus of the present invention has the following advantages:

[0020] The laser welding method of this invention reduces energy consumption, concentrates laser welding energy, produces high-quality, strong welds, and results in aesthetically pleasing welds without overflowing weld beads or spatter. The distance between the clamping web plates can be adjusted between two interlocking movable frames, facilitating the insertion of web plates of the required specifications by workers to produce the steel profiles needed by customers. The adjustable roller support can adjust the distance between itself and the fixed roller support, facilitating the insertion of flange plates of the required specifications by workers to produce the steel profiles needed by customers. Positioning is accurate, convenient, and fast. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 This is a front view of the laser continuous welding H-beam production apparatus according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection between the straightening roller and the web plate according to an embodiment of the present invention;

[0024] Figure 3 This is a top view of the laser continuous welding H-beam production apparatus according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection between the web and the wing plate according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the active frame described in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100 - Laser welding unit; 201 - Movable frame;

[0029] 202- Forward / Reverse Screw Adjustment Mechanism; 203- Abutting Leg;

[0030] 204 - Fixed roller support; 205 - Adjustable roller support;

[0031] 206-Straightening roller; 207-Web plate;

[0032] 208 - Wing plate straightening roller; 209 - Wing plate;

[0033] 210 - Clamping and synchronous operation mechanism; 211 - Synchronizing pulley;

[0034] 212 - Timing belt clamping; 213 - Elastic lifting device;

[0035] 214 - First slider; 215 - Frame base;

[0036] 216 - Clamping wheel; 400 - Base of the machine body;

[0037] 401 - Protective frame; 402 - First slide groove. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] like Figures 1-5 As shown, the present invention provides a laser continuous welding H-beam production device, which includes a laser welding unit 100, a feeding device, a discharging device and a machine base 400.

[0043] The top surface of the machine base 400 is fixedly connected to the laser welding unit 100, the feeding device, and the discharging device. There are two sets of corresponding laser welding units 100. The feeding device and the discharging device are arranged symmetrically about the laser welding unit 100.

[0044] A protective frame 401 is connected to the base 400 of the machine body. A receiving space can be formed between the protective frame 401 and the base 400 of the machine body. The receiving space is used to accommodate the laser welding unit 100, the feeding device, and the discharging device.

[0045] The feeding device includes two movable frames 201 that are parallel to each other. A positive and negative screw adjustment mechanism 202 is connected between the two movable frames 201. The positive and negative screw adjustment mechanism 202 is used to control the distance between the two movable frames 201.

[0046] The movable frame 201 includes abutment legs 203 and frame base 215. There are multiple abutment legs 203, which are fixedly connected to both sides of the frame base 215. Two movable frames 201 are staggered and interlocked, with the outer ends of the abutment legs 203 abutting against another frame base 215. The movable frame 201 is slidably connected between the base 400 and the protective frame 401.

[0047] The inner sides of the two corresponding abutment legs 203 are respectively vertically connected to the corresponding fixed roller support 204 and adjustable roller support 205. The fixed roller support 204 and the adjustable roller support 205 are respectively connected to the straightening roller 206. The straightening roller 206 can rotate around the vertical direction. The bottom end of the straightening roller 206 is provided with a clamping wheel 216. The clamping wheel 216 can rotate around the horizontal direction. The corresponding clamping wheels 216 are used to clamp the web plate 207.

[0048] Fixed roller support 204 and adjustable roller support 205 are respectively connected to wing plate straightening rollers 208. The wing plate straightening rollers 208 are located outside the straightening rollers 206, and the two corresponding wing plate straightening rollers 208 are used to clamp the wing plate 209.

[0049] In one embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the machine base 400 is a rectangular plate that isolates the device from the ground. There are two laser welding units 100, positioned opposite each other and located in the middle of the upper surface of the machine base 400. These two units separate the feeding and discharging devices, which are stacked together with the feeding device in front and the discharging device behind. A protective frame 401 encloses the two laser welding units 100, the feeding device, and the discharging device. The lower end of the protective frame 401 is mounted on the machine base 400, protecting the two laser welding units 100, the feeding device, and the discharging device from external interference.

[0050] The feeding device and the discharging device have the same structure. The feeding device includes two movable frames 201. Each movable frame 201 includes a frame base 215 and abutment legs 203. The frame base 215 is a rectangular frame, and multiple abutment legs 203 are vertically welded to both sides of the frame base 215. The multiple abutment legs 203 are correspondingly arranged, and the abutment legs 203 on the two movable frames 201 are interlocked. The two interlocking abutment legs 203 on the bottom side are slidably connected to the machine base 400. The two interlocking abutment legs 203 on the upper side are slidably connected to the inner top surface of the protective frame 401. A positive and negative screw adjustment mechanism 202 is connected between the two interlocking abutment legs 203 on the bottom side. Under the control of the motor, the positive and negative screw adjustment mechanism 202 can adjust the distance between the two abutment legs 203, so that the distance between the two movable frames 201 can be adjusted to a suitable distance.

[0051] In a movable frame 201, the inner side of the upper abutment leg 203 is vertically connected to an adjustable roller support 205, the vertical distance of which is adjustable. The inner side of the corresponding upper abutment leg 203 is vertically connected to a fixed roller support 204. A straightening roller 206 is connected between the upper and lower corresponding adjustable roller supports 205 and the fixed roller support 204. The straightening roller 206 is a composite roller capable of rotating vertically. A clamping wheel 216 is installed on one side of the straightening roller 206 that holds the web 207. The clamping wheel 216 can rotate horizontally, and the position between two corresponding clamping wheels 216 is used to clamp the web 207, which moves towards the discharge device.

[0052] The thickness of the web 207 is adjustable, and the distance between the two corresponding straightening rollers 206 can be changed by adjusting the adjustable roller support 205, which makes it convenient for workers to clamp webs 207 of different thicknesses and can produce H-beams of different specifications.

[0053] Correspondingly, fixed roller supports 204 and adjustable roller supports 205 have wing plate straightening rollers 208 on their outer surfaces. Two corresponding upper and lower wing plate straightening rollers 208 clamp a wing plate 209. The wing plate straightening rollers 208 and the web plate straightening rollers 206 form an H-shaped steel structure with the two wing plates 209 and one web plate 207. Under the adjustment of the positive and negative screw adjustment mechanism 202, the movable frame 201 adjusts the distance between the straightening rollers 206 clamping the web plate 207 on both sides to a suitable distance, facilitating the introduction of web plates 207 of different specifications by workers.

[0054] Driven by multiple sets of rollers, continuous H-beams of suitable size are transported between two laser welding units 100. The laser welding units 100 emit laser beams to weld the two sides of the web 207 to the two left and right flanges 209. After welding, the H-beams are moved to the end online tracking hydraulic shearing device under the drive of the discharge device with the same structure as the feeding mechanism. The welded H-beams are then cut according to the required size.

[0055] Because the welding method is laser welding, which replaces high-frequency welding, smaller steel sections can be welded according to requirements. The welding energy consumption is greatly reduced, the welding strength and quality are good, and there is no need for water cooling. On-site management is simple and safe. During the welding process, no weld beads are generated on the surface of the steel plate, the surface of the steel section is clean and does not require treatment, the weld is beautiful, and it can be directly protected against corrosion or reprocessed. There is no spatter, and the site is relatively clean and safe.

[0056] In addition to using ordinary untreated steel plates for production, galvanized plates or aluminum-zinc-magnesium steel plates can also be used as raw materials to produce H-beams, resulting in products that do not require further anti-corrosion treatment. Stainless steel plates can even be used as raw materials to produce H-beams. These H-beams can be widely used in photovoltaics, construction, machinery and other fields, greatly reducing production costs and improving efficiency and anti-corrosion effects.

[0057] Furthermore, a clamping and synchronous operation mechanism 210 is connected to the active frame 201. The clamping and synchronous operation mechanism 210 includes a synchronous pulley 211 and a clamping synchronous belt 212. There are multiple synchronous pulleys 211. The clamping synchronous belt 212 is sleeved on the synchronous pulley 211, and the outer side of the clamping synchronous belt 212 is used to abut against the outer side of the wing plate 209.

[0058] In one embodiment of the present invention, such as Figure 1 , Figure 2As shown, the movable frame 201 is connected in the middle by a clamping and synchronous operating mechanism 210. The clamping and synchronous operating mechanism 210 has multiple synchronous wheels 211. In one movable frame 201, synchronous wheels 211 are connected between corresponding abutment legs 203 on both sides. Multiple synchronous wheels 211 installed in the abutment legs 203 are arranged in a row. One synchronous wheel 211 is installed in the movable frame 201. Multiple synchronous wheels 211 form a triangular shape. The clamping synchronous belt 212 is sleeved on the outer surface of the synchronous wheel 211. The outer circumference of the clamping synchronous belt 212 is in contact with the outer side of the wing plate 209. The side of the straightening roller 206 is in contact with the inner side of the wing plate 209. Driven by the servo motor, the synchronous wheel 211 rotates, which drives the clamping synchronous belt 212 to rotate. The movement of the clamping synchronous belt 212 drives the movement of the wing plate 209, so that the assembled steel section is continuously transported to the welding position, which is convenient and fast.

[0059] Furthermore, the adjustable roller support 205 is internally connected to an elastic lifting device 213, and the adjustable roller support 205 can adjust its height in the vertical direction.

[0060] A lifting mechanism is connected to the wing plate straightening roller 208, which can adjust the distance between the corresponding two wing plate straightening rollers 208.

[0061] In one embodiment of the present invention, such as Figure 1 , Figure 2 As shown, the adjustable roller support 205 is internally connected to an elastic lifting device 213. Under the action of the elastic lifting device 213, the adjustable roller support 205 can be adjusted vertically to easily adjust to the required width of the wing plate 209, which is convenient and quick. The wing plate straightening roller 208 is connected to a lifting mechanism. The distance between two corresponding wing plate straightening rollers 208 is adjustable, and the wing plate 209 of the required specifications can be inserted between the two corresponding wing plate straightening rollers 208, which is convenient and quick.

[0062] Furthermore, the inner top surface of the protective frame 401 is provided with a first sliding groove 402, and the outer side of the abutment leg 203 on one side is provided with a first slider 214, which can be slidably connected in the first sliding groove 402.

[0063] In one embodiment of the present invention, such as Figure 1 , Figure 2 As shown, the inner top surface of the protective frame 401 is provided with a first sliding groove 402 in the horizontal direction, and the top surface of the upper abutting leg 203 is provided with a first slider 214. The first slider 214 slides in the first sliding groove 402. When the distance between the two movable frames 201 needs to be adjusted, the two movable frames 201 are adjusted by the positive and negative screw adjustment mechanism 202, and the first slider 214 slides to a suitable position in the first sliding groove 402. The movement is smooth and convenient for adjustment.

[0064] Furthermore, the top surface of the base 400 is provided with a second sliding groove, and the outer side of the abutment leg 203 on the other side is provided with a second slider, which can be slidably connected in the second sliding groove.

[0065] In one embodiment of the present invention, such as Figure 1 , Figure 2 As shown, the top surface of the base 400 is provided with a second sliding groove along the horizontal direction, and the outer side of the bottom abutment leg 203 is provided with a second slider. The second slider slides in the second sliding groove. When the distance between the two movable frames 201 needs to be adjusted, the two movable frames 201 are adjusted by the positive and negative screw adjustment mechanism 202, and the second slider slides to the appropriate position in the second sliding groove. The movement is smooth and convenient for adjustment.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser continuous welding H-beam production apparatus, characterized in that: It includes a laser welding unit (100), a feeding device, a discharging device, and a machine base (400); The laser welding unit (100), feeding device, and discharging device are fixedly connected to the top surface of the base (400). There are two sets of laser welding units (100). The feeding device and the discharging device are arranged symmetrically about the laser welding unit (100). A protective frame (401) is connected to the base (400) of the machine body. A receiving space can be formed between the protective frame (401) and the base (400). The receiving space is used to accommodate the laser welding unit (100), the feeding device, and the discharging device. The feeding device includes two movable frames (201) that are parallel to each other. A positive and negative lead screw adjustment mechanism (202) is connected between the two movable frames (201) to control the distance between the two movable frames (201). The movable frame (201) includes abutment legs (203) and frame base (215). There are a corresponding number of abutment legs (203), and the abutment legs (203) are respectively fixedly connected to both sides of the frame base (215). Two movable frames (201) are staggered and interlocked, and the outer ends of the abutment legs (203) abut against the other frame base (215). The movable frame (201) is slidably connected between the body base (400) and the protective frame (401). The inner sides of the two corresponding abutment legs (203) are respectively vertically connected to corresponding fixed roller supports (204) and adjustable roller supports (205). The fixed roller supports (204) and adjustable roller supports (205) are respectively connected to straightening rollers (206). The straightening rollers (206) can rotate around the vertical direction. The bottom end of the straightening rollers (206) is provided with clamping wheels (216). The clamping wheels (216) can rotate around the horizontal direction. The corresponding clamping wheels (216) are used to clamp the web plate (207). The fixed roller support (204) and the adjustable roller support (205) are respectively connected to wing plate straightening rollers (208). The wing plate straightening rollers (208) are located outside the straightening rollers (206), and the two corresponding wing plate straightening rollers (208) are used to clamp the wing plate (209).

2. The laser continuous welding H-beam production apparatus according to claim 1, characterized in that: The movable frame (201) is connected to a clamping and synchronous operation mechanism (210), which includes a synchronous pulley (211) and a clamping and synchronous belt (212). There are multiple synchronous pulleys (211). The clamping and synchronous belt (212) is sleeved on the synchronous pulley (211), and the outer side of the clamping and synchronous belt (212) is used to abut against the outer side of the wing plate (209).

3. The laser continuous welding H-beam production apparatus according to claim 1, characterized in that: The adjustable roller support (205) is internally connected to an elastic lifting device (213), and the adjustable roller support (205) can adjust its height in the vertical direction; A lifting mechanism is connected to the wing plate straightening roller (208), which can adjust the distance between the corresponding two wing plate straightening rollers (208).

4. The laser continuous welding H-beam production apparatus according to claim 1, characterized in that: The inner top surface of the protective frame (401) is provided with a first sliding groove (402), and the outer side of the abutment leg (203) on one side is provided with a first slider (214), which can be slidably connected in the first sliding groove (402).

5. The laser continuous welding H-beam production apparatus according to claim 4, characterized in that: The top surface of the base (400) is provided with a second sliding groove, and the outer side of the abutment leg (203) on the other side is provided with a second slider, which can be slidably connected in the second sliding groove.

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