Automatic assembly equipment for steel grating plate and edge-coated flat steel

Abstract

The application discloses a kind of steel grating plate and automatic assembly equipment of edge covering flat steel in the technical field of welding equipment, including base and assembly welding unit, conveying unit is provided on the base, assembly welding unit includes two groups of symmetrical slide table being set on base, the storage component being set on each group of slide table, the feeding component being set below storage component, sensor being set on the side of each group of slide table.The application can realize the automation assembly operation of edge covering treatment between steel grating plate and flat steel plate by setting assembly welding unit cooperating with conveying unit, greatly improve production efficiency;Meanwhile, the welding component containing multiple welding assemblies is set at the end of manipulator to complete welding operation, which greatly shortens the welding operation time, in addition, the welding component can adapt to the welding processing needs of various specifications of products according to the spacing of different types of steel grating plate materials, improve the use flexibility of the device and expand the adaptive processing range of the equipment.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to an automatic assembly equipment for steel grating and edge-sealing flat steel. Background Technology

[0002] Steel grating is an important product widely used in current industrial production, found in various fields such as sewer manholes and fences. During the production of steel grating, it is necessary to weld plates (edge-sealing flat steel) to its end faces to complete the edge-sealing process. Currently, the edge-sealing operation is mostly done manually by workers using electric welding, which is a low-efficiency method.

[0003] To improve work efficiency, existing technologies also employ mechanized automated edging mechanisms to complete the edging operation, relying on robotic arms to automate the welding of steel grating panels. However, in existing technologies, the welding area of ​​the robotic arm is typically equipped with only a single welding head. In actual operation, to ensure the welding effect between the edging flat steel and the steel grating panel, the edging flat steel needs to be welded to each grating panel (plate). A single welding head significantly reduces work efficiency and cannot meet production needs. In addition, different models of steel grating panels have different spacing between the grating panels (plates) depending on the application scenario and requirements. Therefore, the welding positions between the grating and the edging flat steel also vary. A single welding head cannot adapt to the welding requirements of different spacings, the adjustment process is cumbersome, and it will also slow down the overall assembly progress. At the same time, manual or single-head welding has high labor costs, and the accuracy of the welding points is difficult to guarantee uniformly, which can easily lead to problems such as missed welds and incomplete welds, ultimately affecting the overall product quality of the steel grating panel. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention proposes an automatic assembly equipment for steel grating and edge flat steel to solve such problems.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic assembly equipment for steel grating and edge flat steel, comprising a base and an assembly and welding unit. The base is provided with a conveying unit. The assembly and welding unit includes two sets of slides symmetrically arranged on the base, a storage component on each set of slides, a feeding component below the storage component, a sensor on the side of each set of slides, a robot arm vertically arranged on each set of slides, and a welding component at the end of each set of robot arms for welding. The welding component includes a fixed frame connected to the end of the robot arm, a drive shaft rotatably connected inside the fixed frame, with the fixed frame and the drive shaft being coaxial, two sets of guide grooves symmetrically opened on the drive shaft, multiple sets of welding components evenly and equally distributed on the fixed frame, and a threaded shaft threadedly connected to one end of the fixed frame, with one end of the threaded shaft extending into the drive shaft.

[0006] As a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the guide groove group includes guide groove one, guide groove two, guide groove three and guide groove four distributed sequentially along the drive shaft axis. Each of the four is a spiral structure with 0.5 turns. The length ratio of the four is 1:2:3:4. The first end of each of the four is located on the horizontal axis at the uppermost end of the drive shaft, and the last end is located on the horizontal axis at the lowermost end of the drive shaft. The distance between the points on the same horizontal axis of the four is equal, and the overall distance between the four increases proportionally from top to bottom along the spiral direction.

[0007] As a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the lower end face of the fixing frame is provided with a slot in the axial direction, the end of the drive shaft connected to the threaded shaft is provided with a relief groove, and the inner end of the relief groove is provided with a hexagonal groove.

[0008] As a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the welding assembly includes a collar sleeved on a fixed frame, a guide shaft vertically disposed at the lower end of the collar, with the guide shaft extending upward from the fixed frame into the guide groove group, and a welding head disposed at the lower end of the drive shaft for welding.

[0009] As a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the threaded shaft extends into the relief groove, and the diameter of the threaded shaft is smaller than the inner diameter of the relief groove. The inner end of the threaded shaft is provided with a hexagonal shaft, and the hexagonal shaft is matched and inserted into the hexagonal groove.

[0010] As a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the base is provided with a slide rail in parallel, and the slide table is slidably connected to the slide rail. A slide groove is axially opened on the slide table, and the lower end of the material storage component extends into the slide groove. A fixing plate extends outward from the side of the slide table, and one end of the feeding component is fixedly connected to the fixing plate.

[0011] As a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the material storage component includes two sets of pressure plates symmetrically arranged on the slide table, with the lower ends of the two sets of pressure plates on the same plane, a crossbar connected between the outer ends of the two sets of pressure plates, and multiple sets of limiting components equally distributed on the crossbar.

[0012] As a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the limiting component includes a rotating shaft arranged laterally on a crossbar, the rotating shaft being rotatably connected to the crossbar, a gear disposed at the outer end of the rotating shaft, and a spring sleeved on the inner end of the rotating shaft, with the outer end of the spring abutting against the side of the crossbar.

[0013] As a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the feeding component includes a pusher that is vertically attached to the upper surface of the slide table, with the middle part of the pusher passing downward through the slide groove, a pull rod connected to the lower end of the pusher, and a retraction cylinder connected to the outer end of the pull rod, with the retraction cylinder fixedly connected to the lower part of the slide groove.

[0014] In a preferred embodiment of the automatic assembly equipment for steel grating and edge flat steel described in this invention, the conveying unit, the two sets of slides, and the two sets of sensors are electrically connected, and the two sets of sensors are respectively located on the front and rear sides of the two sets of slides.

[0015] The beneficial effects of this invention are as follows: By setting up an assembly and welding unit in conjunction with a conveying unit, automated assembly operations for edge banding between steel grating and flat steel plates can be achieved, significantly improving production efficiency compared to manual welding assembly. Simultaneously, a welding component containing multiple welding parts is installed at the end of the robotic arm to complete the welding operation. Compared to the existing configuration of a single welding component, it can complete the processing and welding of multiple preset welding points at once, significantly shortening the welding operation time and effectively improving the edge banding efficiency of steel grating. Furthermore, the synchronous operation of multiple welding components ensures uniform precision at each welding point, reducing quality problems such as missed welds and incomplete welds. While reducing labor costs, it also stably guarantees the overall product quality of the steel grating, better meeting the needs of large-scale production. In addition, the welding component can flexibly adjust the relative distance between multiple welding components according to the spacing of different models of steel grating plates through a guide groove set on the threaded shaft, thereby adapting to the welding processing needs of various specifications of products. This further enhances the flexibility of the device, expands the adaptable processing range of the equipment, and makes the production process of steel grating edge banding assembly more flexible and adaptable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the automatic assembly equipment for steel grating and edge-sealing flat steel of the present invention.

[0017] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0018] Figure 3 This is a schematic diagram of the assembly and welding unit of the automatic assembly equipment for steel grating and edge-sealing flat steel of the present invention.

[0019] Figure 4 This is a schematic diagram of the internal structure of the assembly and welding unit of the automatic assembly equipment for steel grating and edge flat steel of the present invention.

[0020] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B.

[0021] Figure 6 This is a schematic diagram of the contact position between the limiting component and the steel grating in the automatic assembly equipment for steel grating and edge flat steel of the present invention.

[0022] Figure 7 This is a schematic diagram of the internal three-dimensional structure of the welding component of the automatic assembly equipment for steel grating and edge flat steel of the present invention.

[0023] Figure 8 This is a schematic diagram of the internal planar structure of the welding component of the automatic assembly equipment for steel grating and edge flat steel of the present invention.

[0024] Reference numerals: 1. Base; 11. Slide rail; 2. Slide table; 21. Slide groove; 22. Fixing plate; 3. Material storage component; 31. Pressure plate; 32. Crossbar; 33. Limiting component; 331. Rotating shaft; 332. Gear; 333. Spring; 4. Feeding component; 41. Push frame; 42. Pull rod; 43. Retracting cylinder; 5. Sensor; 6. Robotic arm; 7. Welding component; 71. Fixing frame; 711. Slot 72. Drive shaft; 721. Clearance groove; 722. Hexagonal groove; 73. Guide groove assembly; 731. Guide groove one; 732. Guide groove two; 733. Guide groove three; 734. Guide groove four; 74. Welding assembly; 741. Collar; 742. Guide shaft; 743. Welding head; 75. Threaded shaft; 751. Hexagonal shaft; 8. Steel grating; 81. Plate; 9. Flat steel plate; 10. Conveying unit. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of the present invention more readily understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Reference Figures 1 to 8This invention includes an automatic assembly device for steel grating and edge flat steel, comprising a base 1 and an assembly and welding unit. A conveying unit 10 is mounted on the base 1. The assembly and welding unit includes two sets of symmetrically arranged slides 2 on the base 1, a storage component 3 on each slide 2, a feeding component 4 below the storage component 3, sensors 5 on the sides of each slide 2, a robotic arm 6 vertically mounted on each slide 2, and a welding component 7 at the end of each robotic arm 6 for welding. The slides 2 and the storage component 3 cooperate to form an area for storing flat steel plates 9. The feeding component 4 is used to push the stacked flat steel plates 9, realizing automatic material changing of the flat steel plates 9. The robotic arm 6 is a mature multi-axis robotic arm in the prior art, capable of changing various angles and positions according to usage requirements. The welding component 7 is used to weld the steel grating 8 and the flat steel plate 9.

[0028] Reference Figure 2 , Figures 7 to 8 The welding component 7 includes a fixed frame 71 connected to the end of the robot arm 6, a drive shaft 72 rotatably connected inside the fixed frame 71, and the fixed frame 71 and the drive shaft 72 are coaxial, two sets of guide grooves 73 symmetrically opened on the drive shaft 72, multiple sets of welding components 74 evenly and equally arranged on the fixed frame 71, and a threaded shaft 75 threadedly connected to one end of the fixed frame 71, with one end of the threaded shaft 75 extending into the drive shaft 72. The multiple sets of welding components 74 can simultaneously perform welding operations at multiple locations, greatly accelerating the welding efficiency. The welding component 74 located in the middle is fixedly connected to the fixed frame 71, and the other welding components 74 can spread proportionally to both sides of the fixed frame 71 with the fixed welding component 74 as the center.

[0029] Reference Figure 2 , Figures 7 to 8 The guide groove group 73 includes guide groove 1 731, guide groove 2 732, guide groove 3 733 and guide groove 4 734 distributed sequentially along the axial direction of the drive shaft 72. Each of the four is a spiral structure with 0.5 turns. The length ratio of the four is 1:2:3:4. The first end of each of the four is located on the horizontal axis of the uppermost end of the drive shaft 72, and the last end is located on the horizontal axis of the lowermost end of the drive shaft 72. The distance between the points on the same horizontal axis of the four is equal. The overall distance between the four increases proportionally from top to bottom along the spiral direction. The welding component 74 driven by the four can adjust the distance proportionally according to the length ratio between the four. The same number of turns of the four allows them to expand and push synchronously when rotating by the same amplitude.

[0030] Reference Figure 2 , Figures 7 to 8The lower end face of the fixed frame 71 is provided with a slot 711 axially, and the end of the drive shaft 72 connected to the threaded shaft 75 is provided with a relief slot 721. The inner end of the relief slot 721 is provided with a hexagonal slot 722. The slot 711 limits the movement direction of the welding assembly 74, so that the welding assembly 74 can only move horizontally along the fixed frame 71.

[0031] Reference Figure 2 , Figures 7 to 8 The welding assembly 74 includes a collar 741 sleeved on the fixed frame 71, a guide shaft 742 vertically disposed at the lower end of the collar 741 and extending upwards from the fixed frame 71 into the guide groove group 73, and a welding head 743 disposed at the lower end of the drive shaft 72 for welding. The welding assembly 74 is connected to the fixed frame 71 through the collar 741. At the same time, the guide shafts 742 of multiple welding assemblies 74 extend into the four of them respectively, so that the welding assembly 74 can be pushed by the guide groove group 73. The welding head 743 is a mature welding structure in the prior art, which will not be described in detail here.

[0032] Reference Figure 2 , Figures 7 to 8 The threaded shaft 75 extends into the relief groove 721, and the diameter of the threaded shaft 75 is smaller than the inner diameter of the relief groove 721. The inner end of the threaded shaft 75 is provided with a hexagonal shaft 751, and the hexagonal shaft 751 is matched and inserted into the hexagonal groove 722. The hexagonal groove 722, through its cooperation with the hexagonal shaft 751, enables the threaded shaft 75 to drive the drive shaft 72 to rotate synchronously. The threaded connection between the threaded shaft 75 and the fixing frame 71 has a self-locking effect, which can lock the actual position of the welding component 74 on the fixing frame 71.

[0033] Combination Figure 2 , Figures 7 to 8When the welding component 7 is in use, the welding point is determined according to the actual spacing between the plates 81 on the steel grating 8. Then, the threaded shaft 75 is rotated. The threaded shaft 75, through the cooperation of the hexagonal shaft 751 and the hexagonal groove 722, drives the drive shaft 72 to rotate inside the fixed frame 71. The rotating drive shaft 72 pushes multiple welding components 74 to move horizontally through the guide groove group 73 set on the outer wall. That is, the rotating drive shaft 72 drives the guide groove 1 731, guide groove 2 732, guide groove 3 733 and guide groove 4 734. Utilizing its own helical angle, in cooperation with the guide shaft 742 and the slot 711, it pushes the welding component 74 to move horizontally. The horizontal position of the connecting component 74 is adjusted along the fixed frame 71; then, by combining the length ratio and positional relationship of the four guide grooves 731, 732, 733 and 734, the spacing between the multiple sets of corresponding welding components 74 can be proportionally increased or decreased, thereby adjusting the spacing of the multiple sets of welding components 74 according to the actual spacing of the plate 81, adapting to the welding processing needs of various specifications of steel grating 8, which not only improves the flexibility of the device but also expands the processing range of the equipment, making the production process of edging assembly of steel grating 8 more flexible and adaptable.

[0034] Reference Figure 3 A slide rail 11 is arranged parallel to the base 1, and a slide table 2 is slidably connected to the slide rail 11. A slide groove 21 is axially opened on the slide table 2, and the lower end of the material storage component 3 extends into the slide groove 21. A fixing plate 22 extends outward from the side of the slide table 2, and one end of the feeding component 4 is fixedly connected to the fixing plate 22. The two sets of slide tables 2 can be slidably adjusted on the base 1 through the slide rail 11 according to the actual size of the steel grating 8 to meet more usage needs.

[0035] Reference Figure 4 The storage component 3 includes two sets of pressure plates 31 symmetrically arranged on the slide table 2, with the lower ends of the two sets of pressure plates 31 on the same plane, a crossbar 32 connected between the outer ends of the two sets of pressure plates 31, and multiple sets of limiting components 33 equally arranged on the crossbar 32. The two sets of pressure plates 31 can cooperate with the slide table 2 to form a region for vertically limiting the flat steel plate 9, and the limiting components 33 can laterally limit the flat steel plate 9, thereby enabling multiple sets of flat steel plates 9 to be regularly stored on the storage component 3 and the flat steel plate 9.

[0036] Reference Figure 5 and Figure 6The limiting component 33 includes a rotating shaft 331 that is laterally arranged on the crossbar 32 and is rotatably connected to the crossbar 32. A gear 332 is arranged at the outer end of the rotating shaft 331, and a spring 333 is sleeved on the inner end of the rotating shaft 331. The outer end of the spring 333 abuts against the side of the crossbar 32. The limiting component 33, through the elastic support of the spring 333, can cooperate with the gear 332 to laterally limit the flat steel plate 9. The gear 332 with a slot can rotate around the rotating shaft 331 when the steel grating 8 is being transported and moved, by contacting the plate 81, thereby avoiding the impact on the normal transport of the steel grating 8.

[0037] Reference Figure 4 The feeding component 4 includes a pusher 41 that is vertically attached to the upper surface of the slide table 2, with the middle part of the pusher 41 passing downward through the slide groove 21. A pull rod 42 is connected to the lower end of the pusher 41, and a retraction cylinder 43 is connected to the outer end of the pull rod 42. The retraction cylinder 43 is fixedly connected to the lower part of the slide groove 21. The retraction cylinder 43, in cooperation with the pull rod 42, can push the pusher 41 to move along the upper surface of the slide table 2. The moving pusher 41 can push the flat steel plate 9 horizontally, thereby realizing the automatic feeding operation of the flat steel plate 9.

[0038] Reference Figure 1 The conveying unit 10 is electrically connected to the two sets of slide tables 2 and the two sets of sensors 5. The two sets of sensors 5 are respectively set on the front and rear sides of the two sets of slide tables 2. The two sets of sensors 5 on both sides can sense the position of the steel grating 8 between the two sets of slide tables 2 to ensure accurate contact between the steel grating 8 and the flat steel plate 9. They are also used to control the start and stop of the conveying unit 10. When the steel grating 8 enters the assembly and welding unit, the conveying unit 10 stops conveying the steel grating 8, so that the steel grating 8 is kept in the assembly and welding unit for welding edge wrapping operation. After the operation is completed, the finished steel grating 8 is conveyed out of the assembly and welding unit, and the semi-finished steel grating 8 is conveyed to continue entering the assembly and welding unit, realizing the "one plate, one start, one stop" operation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic assembly equipment for steel grating and edge flat steel, comprising a base (1) and an assembly and welding unit, characterized in that: The base (1) is provided with a conveying unit (10). The assembly and welding unit includes two sets of slides (2) symmetrically arranged on the base (1), a storage component (3) arranged on each set of slides (2), a feeding component (4) arranged below the storage component (3), a sensor (5) arranged on the side of each set of slides (2), a robot (6) arranged vertically on each set of slides (2), and a welding component (7) arranged at the end of each set of robot (6) for welding. The welding component (7) includes a fixed frame (71) connected to the end of the robot (6), a drive shaft (72) rotatably connected inside the fixed frame (71), and the fixed frame (71) and the drive shaft (72) are coaxial, two sets of guide grooves (73) symmetrically opened on the drive shaft (72), multiple sets of welding components (74) evenly and equally arranged on the fixed frame (71), and a threaded shaft (75) threadedly connected to one end of the fixed frame (71), and one end of the threaded shaft (75) extending into the drive shaft (72).

2. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 1, characterized in that: The guide groove group (73) includes guide groove one (731), guide groove two (732), guide groove three (733) and guide groove four (734) distributed sequentially along the axial direction of the drive shaft (72). All four are spiral structures with 0.5 turns. The length ratio of the four is 1:2:3:

4. The first end of the four is located on the horizontal axis of the uppermost end of the drive shaft (72), and the end is located on the horizontal axis of the lowermost end of the drive shaft (72). The distance between the points on the same horizontal axis of the four is equal, and the overall distance between the four increases proportionally from top to bottom along the spiral direction.

3. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 1, characterized in that: The lower end face of the fixed frame (71) is provided with a slot (711) axially, and the end of the drive shaft (72) connected to the threaded shaft (75) is provided with a relief groove (721), and the inner end of the relief groove (721) is provided with a hexagonal groove (722).

4. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 1, characterized in that: The welding assembly (74) includes a collar (741) sleeved on a fixing frame (71), a guide shaft (742) vertically disposed at the lower end of the collar (741) and extending upward from the fixing frame (71) into a guide groove assembly (73), and a welding head (743) disposed at the lower end of the drive shaft (72) for welding.

5. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 1 or 3, characterized in that: The threaded shaft (75) extends into the relief groove (721), and the diameter of the threaded shaft (75) is smaller than the inner diameter of the relief groove (721). The inner end of the threaded shaft (75) is provided with a hexagonal shaft (751), and the hexagonal shaft (751) is matched and inserted into the hexagonal groove (722).

6. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 1, characterized in that: The base (1) is provided with a slide rail (11) in parallel, and the slide table (2) is slidably connected to the slide rail (11). The slide table (2) is provided with a slide groove (21) axially, and the lower end of the storage component (3) extends into the slide groove (21). The side of the slide table (2) is provided with a fixing plate (22) extending outward, and one end of the feeding component (4) is fixedly connected to the fixing plate (22).

7. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 1 or 6, characterized in that: The storage component (3) includes two sets of pressure plates (31) symmetrically arranged on the slide (2), with the lower ends of the two sets of pressure plates (31) on the same plane, a crossbar (32) connected between the outer ends of the two sets of pressure plates (31), and multiple sets of limiting components (33) equally arranged on the crossbar (32).

8. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 7, characterized in that: The limiting component (33) includes a rotating shaft (331) that is laterally arranged on the crossbar (32) and the rotating shaft (331) is rotatably connected to the crossbar (32), a gear (332) that is arranged at the outer end of the rotating shaft (331), and a spring (333) that is sleeved on the inner end of the rotating shaft (331) and the outer end of the spring (333) abuts against the side of the crossbar (32).

9. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 1 or 6, characterized in that: The feeding component (4) includes a pusher (41) that is vertically attached to the upper surface of the slide table (2), and the middle part of the pusher (41) passes downward through the slide groove (21), a pull rod (42) connected to the lower end of the pusher (41), and a retraction cylinder (43) connected to the outer end of the pull rod (42), and the retraction cylinder (43) is fixedly connected to the lower part of the slide groove (21).

10. The automatic assembly equipment for steel grating and edge-sealing flat steel according to claim 1, characterized in that: The conveying unit (10) is electrically connected to the two sets of slides (2) and the two sets of sensors (5), and the two sets of sensors (5) are respectively located on the front and rear sides of the two sets of slides (2).

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