Metallic stereolattice splicing and welding equipment

Abstract

A metal stereolattice splicing and welding device is used for continuously positioning and welding metal waveform belts to be combined into metal stereolattice, which comprises a rack for fixing other components, a welding device, a feeding guide rail and a driving device. The welding device, the feeding guide rail and the driving device are all fixed to the rack. The welding device comprises a positioning gear set composed of a first positioning gear and a second positioning gear running synchronously and a welder. A roller set for circulating feeding is further included, which comprises a plurality of carrier roller guide wheels in horizontal position and four corner turning roller wheels, which together constitute a loop path for circulating feeding, capable of realizing loop feeding of the metal waveform belt loop lapping and continuous layer-by-layer welding. The present application has the advantages of accurate positioning, continuous welding and high production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of mechanical manufacturing equipment, and in particular relates to a metal three-dimensional lattice welding equipment for the production of sealed metal three-dimensional lattice welding. Background Technology

[0002] In the field of high-speed turbine mechanical seals, comb-tooth labyrinth seals are widely used due to their simple structure and reliable operation. However, when designers reduced the gap between the comb teeth and the shaft to improve sealing efficiency, they found that the smaller the gap, the greater the shaft vibration. Excessive vibration, on the other hand, would damage and increase the seal gap. When the gap reached a certain value, the shaft vibration would disappear. A delicate mutual constraint relationship existed between shaft vibration and seal gap. Researchers, through experiments and studies, concluded that the vibration was caused by the circumferential component of the leaking airflow. The smaller the seal gap, the greater the circumferential airflow component, and thus the greater the vibration. The comb teeth of the comb-tooth seal form a continuous annular space, which cannot block the circumferential airflow component. Designers incorporated a three-dimensional metal lattice seal strip at the sealing area that could block both circumferential and axial airflow. In actual operation, this ensured the smooth operation of the shaft system under conditions of large pressure differential and small gap, significantly improving the unit's efficiency. Furthermore, this three-dimensional metal lattice seal is used in noise reduction and silencing facilities in large building spaces, as well as in situations requiring electrical signal shielding. The end face shapes of metal three-dimensional lattices include regular hexagons (commonly known as honeycomb), rhombuses, and regular squares. Among them, sealing strips made of honeycomb-shaped metal three-dimensional lattices are widely used in the field of turbine mechanical seals.

[0003] The fabrication of metal lattices requires extensive welding, where wavy metal strips are welded layer by layer into a grid-like structure. In actual production, the positioning of the wavy metal strips directly affects the welding quality of the metal lattice, making the solution for large-scale, continuous, and rapid welding of metal lattices crucial. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of large-scale continuous and rapid welding of metal three-dimensional lattices.

[0005] To address the aforementioned problems, this invention proposes a metal three-dimensional lattice welding device for continuously positioning and welding metal waveform strips into a metal three-dimensional lattice. The device includes a frame for fixing other components, a welding device, a feeding guide rail, and a drive device.

[0006] The welding device, the feeding guide rail, and the drive device are all fixed to the frame.

[0007] The welding device includes a positioning gear set consisting of a first positioning gear and a second positioning gear that operate synchronously. The first and second positioning gears have the same dimensions and structure, each including a gear disk body and positioning teeth evenly distributed on the outer circumferential surface of the gear disk body. The positioning teeth include a set of full-thickness teeth and a set of half-thickness teeth axially opposite each other. The thickness of the half-thickness teeth is less than the thickness of the full-thickness teeth in the axial direction of the positioning gears to facilitate welding. The root distance between the full-thickness teeth and the half-thickness teeth is equal to the overlap thickness of the two layers of the metal corrugated strip.

[0008] Furthermore, the welding device includes a first gear shaft rotatably mounted on the frame, a first positioning gear axially slidably mounted on the first gear shaft, a height adjustment device fixed on the frame, a second gear shaft rotatably mounted on the adjustable position of the movable end of the height adjustment device, a second positioning gear slidably mounted on the second gear shaft, a width adjustment guide sleeve slidably fixed to the frame for actuating the first and second positioning gears, and a welder fixed to the width adjustment guide sleeve for welding metal corrugated strips.

[0009] Furthermore, the tooth tips of the first and second positioning gears face each other, and the minimum distance between the outer circumferential surfaces of the two gear discs is equal to the height of the metal corrugated strip; two metal corrugated strips placed symmetrically in contact with each other are fitted onto the positioning teeth of the two metal three-dimensional lattice welded positioning gears, and the overlapping welded sections of the two metal corrugated strips are inserted into the gaps between the full-thickness and half-thickness teeth on the two gears to ensure a tight fit; the two metal corrugated strips move synchronously with the rotation of the metal three-dimensional lattice welded positioning gears, and the overlapping welded sections of the two metal corrugated strips are sequentially fitted into the gaps between the full-thickness and half-thickness teeth on the two gears to continuously ensure a tight fit of the welded sections.

[0010] The feeding guide rail includes a fixed rail fixed to the frame, a guide rail rod that slides with the fixed rail, a movable rail fixed to one end of the guide rail rod that can adjust the feeding gap between the movable rail and the fixed rail, and a partition plate fixed in the feeding gap for separating the metal corrugated strip and a pressure plate for limiting the metal corrugated strip.

[0011] The drive device includes a motor, a transfer shaft rotatably mounted on the frame, a transfer gear mounted on one end of the transfer shaft and drivenly connected to the motor, a first pulley mounted on the other end of the transfer shaft, a second pulley mounted on one end of the second gear shaft, and a transmission gear mounted in the middle of the first gear shaft and meshing with the transfer gear.

[0012] The first pulley and the second pulley are connected by a belt for transmission and a tensioner for belt tension adjustment.

[0013] The metal three-dimensional lattice welding equipment also includes a guide wheel assembly for feeding materials.

[0014] The guide roller assembly includes multiple horizontally positioned idler rollers and corner rollers at the four corners. The idler rollers and corner rollers together form a circular feeding path, enabling the circular feeding of the metal corrugated strip for continuous layer-by-layer welding. The resulting closed-loop strip-shaped metal lattice can be cut into different lengths for the final sealing product. The circular feeding method helps reduce the alignment adjustment of the layer-by-layer feeding of the metal corrugated strip and facilitates continuous automated welding assembly production.

[0015] One of the corner rollers in the guide wheel assembly is mounted on the horizontal center line of the roller shaft that is connected to the first gear shaft drive.

[0016] The two corner rollers and multiple idler rollers at one end of the guide wheel assembly are mounted on a length-adjustable telescopic frame with horizontal telescopic function. The length-adjustable telescopic frame is mounted on the machine frame via a slide rail structure.

[0017] A third pulley is mounted on one end of the first gear shaft, and a fourth pulley for transmission is mounted on one end of the roller shaft. A belt for transmission is provided between the third belt and the fourth belt.

[0018] One end of the first gear shaft is also equipped with a position sensor connected to the welder for welding synchronization. The power supply of the welder is controlled by the electronic signal provided by the position sensor to ensure the accuracy of the weld point position.

[0019] The welding device includes two or more laser welding heads with position and angle adjustment structures.

[0020] During production, a metal corrugated strip is passed through the side of the partition and pressure plate in the feeding guide, then through the gap between the positioning gears, and then through the guide wheel assembly along a circular path back to the feeding end of the feeding guide. It passes between the partition and pressure plate of the feeding guide and enters the welding device. After entering the welding device, the metal corrugated strip is positioned by the first positioning gear and the second positioning gear and welded synchronously, thereby forming a continuously circulating annular metal three-dimensional lattice structure. The metal corrugated strip can be continuously connected with new strips, and through continuous positioning and welding, a multi-layer structure is gradually formed, eventually forming a metal three-dimensional lattice of the required width.

[0021] In summary, the present invention has the following beneficial technical effects:

[0022] 1. Accurate positioning: The tooth profile closely matches the inner contour of the metal corrugated strip, effectively preventing misalignment along the length of the metal corrugated strip. The distance between the circumferential surfaces of the two gear discs limits the vertical misalignment of the metal corrugated strip;

[0023] 2. Continuous welding: The continuous positioning of the metal corrugated belt is achieved by the synchronous operation of two positioning gears, and the cyclic feeding is achieved by the guide wheel group of the annular path, thus realizing continuous welding;

[0024] 3. High production efficiency: Due to the positioning, automatic and continuous synchronous feeding and positioning welding are achieved, which reduces a lot of auxiliary time and significantly improves production efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the front structure of the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of the positioning gear of the present invention;

[0027] Figure 3 This is a partial structural diagram of the back of the present invention;

[0028] Figure 4 This is the present invention. Figure 1 BB cross-sectional structure diagram;

[0029] Figure 5 This is the present invention. Figure 1 AA cross-sectional structural diagram;

[0030] Figure 6 This is a schematic diagram of the side end face structure of the feed guide rail of the present invention;

[0031] Figure 7 This is a top view of the feed guide rail of the present invention.

[0032] In the diagram: 1. Frame; 2. Welding device; 3. Feed guide rail; 4. Drive device; 5. Guide wheel assembly; 21. First positioning gear; 22. Second positioning gear; 23. First gear shaft; 24. Height adjustment device; 25. Second gear shaft; 26. Width adjustment guide sleeve; 27. Welder; 51. Corner roller; 52. Idler roller guide wheel; 53. Length adjustment telescopic frame; 511. Roller shaft; 201. Gear disc body; 202. Positioning gear; 2021. Full-thickness gear; 2022. Half-thickness gear; 203. Outer circumference Surface; 601. Welding section; 40. Belt; 41. Motor; 42. Transfer shaft; 43. Transfer gear; 44. First pulley; 45. Second pulley; 46. Transmission gear; 47. Belt; 48. Tensioner; 49. Third pulley; 241. Moving end; 512. Fourth pulley; 7. Position sensor; 271. Laser welding head; 272. Welding head bracket; 31. Fixed rail; 32. Guide rail rod; 33. Moving rail; 34. Partition plate; 35. Pressure plate; 301. Feed gap; 331. Screw. Detailed Implementation

[0033] The technical solution will be further described below with reference to the accompanying drawings and specific embodiments to help understand the content of the present invention.

[0034] like Figure 1 As shown, this invention proposes a metal three-dimensional lattice welding device for continuously positioning and welding metal corrugated strips into a metal three-dimensional lattice. It includes a frame 1 for fixing other components, a welding device 2, a feeding guide rail 3, and a driving device 4 (see [reference]). Figure 3 ).

[0035] The welding device 2, the feeding guide rail 3, and the driving device 4 are all fixed to the frame 1.

[0036] The metal three-dimensional lattice welding equipment also includes a guide wheel group 5 for feeding materials.

[0037] The guide roller group 5 includes multiple horizontally positioned idler rollers 52 and corner rollers 51 at the four corners. The idler rollers 52 and corner rollers 51 together form a circular feeding path, which enables the circular feeding of the metal corrugated strip for circular overlapping and continuous layer-by-layer welding. The produced closed-loop strip-shaped metal three-dimensional lattice can be cut into different lengths for the final sealing product. The circular feeding method helps to reduce the alignment adjustment of the layer-by-layer feeding of the metal corrugated strip and facilitates continuous automated welding assembly production.

[0038] The two corner rollers 51 and multiple idler rollers 52 at one end of the guide roller group 5 are mounted on the length-adjustable telescopic frame 53 with horizontal telescopic function. The length-adjustable telescopic frame 53 is mounted on the frame 1 through a slide rail structure.

[0039] The welding device includes a first gear shaft 23 rotatably mounted on the frame 1, a first positioning gear 21 axially slidably mounted on the first gear shaft, a height adjustment device 24 fixed on the frame 1, a second gear shaft 25 rotatably mounted on the adjustable position of the movable end of the height adjustment device, a second positioning gear 22 slidably mounted on the second gear shaft 25, a width adjustment guide sleeve 26 slidably fixed on the frame 1 for actuating the first positioning gear 21 and the second positioning gear 22, and a welder 27 fixed on the width adjustment guide sleeve 26 for welding metal corrugated strips.

[0040] like Figure 2 As shown, the first positioning gear 21 and the second positioning gear 22 have the same size and structure, both including a gear disk body 201 and positioning teeth 202 evenly distributed on the outer circumferential surface 203 of the gear disk. The positioning teeth include a set of full-thickness teeth 2021 and a set of half-thickness teeth 2022 axially opposite each other. The thickness of the half-thickness teeth 2022 is less than the thickness of the full-thickness teeth 2021 in the axial direction of the positioning gear to facilitate welding. The root distance between the full-thickness teeth 2021 and the half-thickness teeth 2022 is equal to the overlap thickness of the two layers of the metal corrugated strip, which is the processing gap.

[0041] Furthermore, the tooth tips of the positioning teeth of the first positioning gear 21 and the second positioning gear 22 face each other, and the minimum distance between the outer circumferential surfaces 203 of the two gear discs is equal to the width of the metal corrugated strip; two metal corrugated strips placed symmetrically in contact with each other are fitted onto the positioning teeth of the two metal three-dimensional lattice welded positioning gears, and the overlapping welding sections of the two metal corrugated strips are inserted into the gaps between the full-thickness teeth and the half-thickness teeth on the two gears to ensure a tight fit; the two metal corrugated strips move synchronously with the rotation of the metal three-dimensional lattice welded positioning gears, and the overlapping welding sections of the two metal corrugated strips are sequentially fitted into the gaps between the full-thickness teeth and the half-thickness teeth on the two gears to continuously ensure the tight fit of the welding section 601.

[0042] like Figure 3 Figure 4 As shown, the drive device 4 includes a motor 41, a transfer shaft 42 rotatably mounted on the frame, a transfer gear 43 mounted on one end of the transfer shaft 42 and connected to the motor 41 for transmission, a first pulley 44 mounted on the other end of the transfer shaft 42, a second pulley 45 mounted on one end of the second gear shaft 25, and a transmission gear 46 mounted in the middle of the first gear shaft 23 and meshing with the transfer gear.

[0043] The first pulley 44 and the second pulley 45 are provided with a belt 47 for transmission and a tensioner 48 for belt tension adjustment.

[0044] A third pulley 49 is mounted on one end of the first gear shaft 23, and a fourth pulley 512 for transmission is mounted on one end of the roller shaft. A belt 40 for transmission is provided between the third belt and the fourth belt.

[0045] A position sensor 7, which is connected to the welder for welding synchronization, is also installed at one end of the first gear shaft. The power supply of the welder 27 is controlled by the electronic signal provided by the position sensor 7 to ensure the accuracy of the weld point position.

[0046] The welder 27 includes two laser welding heads 271 with position and angle adjustment structures, and also includes a welding head support 272 for position and angle adjustment.

[0047] One of the corner rollers 51 in the guide wheel assembly 5 is mounted on the horizontal center line of the roller shaft 511, which is connected to the first gear shaft 23.

[0048] like Figure 6 and Figure 7 As shown, the feeding guide rail 3 includes a fixed rail 31 fixed on the frame 1, a guide rail rod 32 that slides with the fixed rail 31, a moving rail 33 fixed to one end of the guide rail rod 32 that can adjust the feeding gap 301 between the moving rail and the fixed rail 31, and a partition plate 34 and a pressure plate 35 fixed in the feeding gap 301 for separating the metal corrugated strip and for limiting the metal corrugated strip. The partition plate 34 and the pressure plate 35 are inserted into the slots of the fixed rail 31 and the moving rail 33, and the partition plate 34 and the pressure plate 35 are fixed on one side of the moving rail 33 by screws 331.

[0049] During production, a metal corrugated strip is passed through the side of the partition 34 and pressure plate 35 in the feeding guide 3, then through the gap between the positioning gears, and then through the guide wheel group 5 along a circular path back to the feeding end of the feeding guide 3. It passes between the partition 34 and pressure plate 35 of the feeding guide 3 and enters the welding device 2. After entering the welding device 2, the metal corrugated strip is positioned by the first positioning gear 21 and the second positioning gear 22 and welded synchronously, thereby forming a continuously circulating annular metal three-dimensional lattice structure. The metal corrugated strip can be continuously connected to new strips, and through continuous positioning and welding, a multi-layer structure is gradually formed, eventually forming a metal three-dimensional lattice of the required width.

[0050] The above description is merely an example of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the scope and description of this patent application shall fall within the scope of this patent.

Claims

1. A metal three-dimensional lattice welding device, used for continuously positioning and welding metal corrugated strips into a metal three-dimensional lattice, characterized in that: This includes a frame for securing other components, welding equipment, feed rails, and drive units; The welding device, the feeding guide rail, and the drive device are all fixed to the frame. The welding device includes a positioning gear set consisting of a first positioning gear and a second positioning gear that operate synchronously; the first positioning gear and the second positioning gear have the same size and structure, each including a gear disk body and positioning teeth evenly distributed on the outer circumferential surface of the gear disk body; the positioning teeth include a set of full-thickness teeth and a set of half-thickness teeth arranged axially opposite each other, the thickness of the half-thickness teeth being less than the thickness of the full-thickness teeth in the axial direction of the positioning gears; the root distance between the full-thickness teeth and the half-thickness teeth is equal to the overlap thickness of the two layers of the metal corrugated strip. The welding device includes a first gear shaft rotatably mounted on the frame, a first positioning gear axially slidably mounted on the first gear shaft, a height adjustment device fixed on the frame, a second gear shaft rotatably mounted on the adjustable position of the movable end of the height adjustment device, a second positioning gear slidably mounted on the second gear shaft, a width adjustment guide sleeve slidably fixed to the frame for moving the first positioning gear and the second positioning gear, and a welder fixed on the width adjustment guide sleeve for welding metal corrugated strips; The tooth tips of the first and second positioning gears face each other, and the minimum distance between the outer circumferential surfaces of the two gear discs is equal to the height of the metal corrugated strip; two metal corrugated strips, placed symmetrically with their contact surfaces in contact, are fitted onto the positioning teeth of the two metal three-dimensional lattice welded positioning gears, and the overlapping welded sections of the two metal corrugated strips are inserted into the gaps between the full-thickness and half-thickness teeth on the two gears to ensure a tight fit; the two metal corrugated strips move synchronously with the rotation of the metal three-dimensional lattice welded positioning gears, and the overlapping welded sections of the two metal corrugated strips are sequentially fitted into the gaps between the full-thickness and half-thickness teeth on the two gears to continuously ensure a tight fit of the welded sections; The feeding guide rail includes a fixed rail fixed on the frame, a guide rail rod that slides with the fixed rail, a movable rail fixed to one end of the guide rail rod that can adjust the feeding gap between the movable rail and the fixed rail, and a partition plate fixed in the feeding gap for separating the metal corrugated strip and a pressure plate for limiting the metal corrugated strip. The drive device includes a motor, a transfer shaft rotatably mounted on the frame, a transfer gear mounted on one end of the transfer shaft and drivenly connected to the motor, a first pulley mounted on the other end of the transfer shaft, a second pulley mounted on one end of the second gear shaft, and a transmission gear mounted in the middle of the first gear shaft and meshing with the transfer gear. The first pulley and the second pulley are connected by a belt for transmission and a tensioner for belt tension adjustment.

2. The metal three-dimensional lattice welding equipment as described in claim 1, characterized in that: It also includes a guide wheel assembly for feeding.

3. The metal three-dimensional lattice welding equipment as described in claim 2, characterized in that: The guide roller assembly includes multiple horizontally positioned idler rollers and corner rollers at the four corners, which together form a circular path for cyclic feeding. One of the corner rollers is mounted on a roller shaft that is drivenly connected to the first gear shaft.

4. The metal three-dimensional lattice welding equipment as described in claim 3, characterized in that: The two corner rollers at one end of the guide wheel assembly and multiple idler roller guide wheels are mounted on a length-adjustable telescopic frame with horizontal telescopic function.

5. The metal three-dimensional lattice welding equipment as described in claim 3, characterized in that: A third pulley is mounted on one end of the first gear shaft, and a fourth pulley for transmission is mounted on one end of the roller shaft; A transmission belt is provided between the third belt and the fourth belt.

6. The metal three-dimensional lattice welding equipment as described in claim 1, characterized in that: One end of the first gear shaft is also equipped with a position sensor that is connected to the welder for welding synchronization.

7. The metal three-dimensional lattice welding equipment as described in claim 1, characterized in that: The welder includes two laser welding heads with position and angle adjustment structures.

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