Automatic forming production process and production equipment of grid arch

Abstract

The present application belongs to the technical field of lattice arch production, and discloses a lattice arch automatic forming production process and production equipment. First, the reinforcing steel is processed into a rectangular hoop; a first grabbing robot grabs the rectangular hoop to a plane "8" shaped wire forming device to obtain a plane "8" shaped wire; a second grabbing robot grabs the plane "8" shaped wire to a three-dimensional butterfly wire forming device to obtain a three-dimensional butterfly wire; a third grabbing robot grabs the three-dimensional butterfly wire to a three-dimensional butterfly wire feeding device, which feeds the three-dimensional butterfly wire to a lattice arch forming device; a main wire feeding device feeds the main wire to the lattice arch forming device; the lattice arch forming device automatically extrudes, positions and welds the main wire and the three-dimensional butterfly wire to obtain a lattice arch, which meets the market demand for high-precision and high-efficiency lattice arch production.

Description

Technical Field

[0001] This invention relates to the field of grating arch production technology, and in particular to an automated forming production process and equipment for grating arches. Background Technology

[0002] A grid arch is a mesh-like arch structure made of welded steel bars, such as... Figure 1 As shown, a common lattice arch frame includes four main reinforcing bars 100, multiple three-dimensional butterfly reinforcing bars 200, and angle steel 300. The angle steel 300 is located at both ends of the four main reinforcing bars 100 to fix them in place. Multiple three-dimensional butterfly reinforcing bars 200 are spaced apart between the four main reinforcing bars 100, and each three-dimensional butterfly reinforcing bar 200 is simultaneously welded to all four main reinforcing bars 100. During the production of the lattice arch frame, several three-dimensional butterfly reinforcing bars 200 need to be manually positioned and positioned with the four main reinforcing bars 100, and then manually MIG / MAG welded to them. The three-dimensional butterfly reinforcing bars 200 are simply mechanically clamped in a certain position. This production method has disadvantages such as high labor intensity, low efficiency, high processing cost, numerous safety hazards, and low automation.

[0003] Due to rising labor costs and increasingly stringent quality standards for steel reinforcement processing by construction companies, single-function 200mm three-dimensional butterfly reinforcement forming and welding production lines and manually welded grid arch frame production lines are now operating independently, with each line producing steel reinforcement, rectangular stirrups, and planar figure-eight reinforcement independently. This fragmented production line structure results in low production efficiency for grid arch frames, high equipment and personnel requirements, and the traditional processing methods suffer from high labor intensity, low efficiency, high processing costs, numerous safety hazards, and low automation. These methods can no longer meet the urgent need for automated processing efficiency and quality of grid arch frame steel reinforcement in tunnels. Summary of the Invention

[0004] The purpose of this invention is to provide an automated forming production process and equipment for lattice arch frames, so as to solve the problems of low production efficiency and high cost of lattice arch frames.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An automated forming process for a lattice arch frame includes the following steps:

[0007] S1, the wire feeding mechanism provides steel bars in the positive X direction and processes the steel bars into rectangular stirrups;

[0008] S2, the first gripping robot grips the rectangular stirrup onto the planar figure-eight rib forming device, and the planar figure-eight rib forming device processes the rectangular stirrup into a planar figure-eight rib;

[0009] S3, the second gripping robot grips the planar figure-eight ribs and places them into the three-dimensional butterfly rib forming device, which combines the two planar figure-eight ribs and processes them into a three-dimensional butterfly rib.

[0010] S4, the third gripping robot grips the three-dimensional butterfly tendon and places it onto the three-dimensional butterfly tendon feeding device, and multiple three-dimensional butterfly tendons are movably mounted on the three-dimensional butterfly tendon feeding device.

[0011] S5, the main rib feeding device feeds the main ribs to the grid arch forming device in the opposite direction along the X direction, and the three-dimensional butterfly rib feeding device moves to the bottom of the grid arch forming device in the positive direction along the X direction to feed the three-dimensional butterfly ribs.

[0012] S6, the grid arch forming device automatically extrudes, positions, and welds multiple main ribs and multiple three-dimensional butterfly ribs, and welds angle steel to both ends of the main ribs to obtain the grid arch.

[0013] In step S3, two three-dimensional butterfly tendon forming devices are arranged at intervals along the X direction, and the two three-dimensional butterfly tendon forming devices share the first welding robot for alternating welding.

[0014] In step S4, there are two three-dimensional butterfly rib feeding devices and two forming stations of the grid arch frame forming device. The two forming stations are spaced apart along the Y direction. The two three-dimensional butterfly rib feeding devices feed the three-dimensional butterfly ribs to the two forming stations respectively.

[0015] In step S5, the main rib feeding device can move along the Y direction to alternately feed the two forming stations, and the two forming stations share the second welding robot for alternating welding.

[0016] In some embodiments, the forming station is provided with a rotating frame, and the rotating frame is provided with multiple pairs of adjusting components. After the main rib is fed, it is clamped on the multiple pairs of adjusting components, and the rotating frame can drive the adjusting components to rotate.

[0017] In step S5, during the feeding process of the main ribs by the main rib feeding device, the main rib feeding device first feeds two main ribs of the same height to the multiple pairs of adjustment components. Then, the rotating frame drives the multiple pairs of adjustment components to rotate 180°, and the main rib feeding device feeds another two main ribs of the same height to the multiple pairs of adjustment components.

[0018] In step S6, the process of automatically extruding, positioning, and welding the main rib and the three-dimensional butterfly rib is as follows: First, the main rib is automatically extruded and bent into an arc and automatically positioned with the three-dimensional butterfly rib; then, one side of the main rib and the three-dimensional butterfly rib are spot welded; then, the three-dimensional butterfly rib feeding device descends and exits; one side of the main rib and the three-dimensional butterfly rib is fully welded; the rotating frame drives the adjusting component to rotate 180°, and the other side of the main rib and the three-dimensional butterfly rib is fully welded.

[0019] The rectangular stirrup forming process in step S1 is as follows: after the steel bar is straightened, lengthened, and cut, it is bent into a rectangular steel bar frame by the bending mechanism; the rectangular steel bar frame slides to the hoop-collecting mechanism, the hoop-collecting mechanism rotates the rectangular steel bar frame once and then transfers it to the stirrup welding mechanism for sealing welding to obtain the rectangular stirrup; after the rectangular stirrup is rotated a second time by the hoop-collecting mechanism, it is transported to the vertical storage mechanism for storage and cooling.

[0020] In some embodiments, the planar figure-eight rib includes a planar symmetrical figure-eight rib and a planar arc-shaped figure-eight rib, and the planar figure-eight rib forming device is capable of alternately producing the planar symmetrical figure-eight rib and the planar arc-shaped figure-eight rib.

[0021] In some embodiments, the three-dimensional butterfly rib includes a first three-dimensional butterfly rib and a second three-dimensional butterfly rib. The first three-dimensional butterfly rib is obtained by welding two planar symmetrical figure-eight ribs together through a three-dimensional butterfly rib forming device, and the second three-dimensional butterfly rib is obtained by welding two planar arc-shaped figure-eight ribs together through another three-dimensional butterfly rib forming device. The first three-dimensional butterfly rib and the second three-dimensional butterfly rib are alternately placed on the three-dimensional butterfly rib feeding device.

[0022] An automatic forming production equipment for grid arch frames is provided to realize the automatic forming production process of the grid arch frames. The automatic forming production equipment for grid arch frames includes a rectangular stirrup forming and welding device, a planar figure-eight rib forming device, a three-dimensional butterfly rib forming device, a grid arch frame forming device, and a main rib feeding device arranged sequentially along the X direction. It also includes a three-dimensional butterfly rib feeding device that moves and lifts below the grid arch frame forming device. The rectangular stirrup forming and welding device, the planar figure-eight rib forming device, and the three-dimensional butterfly rib forming device are respectively used to obtain rectangular stirrups, planar figure-eight ribs, and three-dimensional butterfly ribs, and place multiple three-dimensional butterfly ribs on the three-dimensional butterfly rib feeding device. The three-dimensional butterfly rib feeding device feeds multiple three-dimensional butterfly ribs to the grid arch frame forming device. The main rib feeding device feeds multiple main ribs to the grid arch frame forming device. The grid arch frame forming device automatically extrudes and bends multiple main ribs and automatically positions them with multiple three-dimensional butterfly ribs, then welds them, and welds angle steel to both ends of the main ribs to obtain the grid arch frame.

[0023] The beneficial effects of this invention are:

[0024] The automatic forming production process for lattice arch frames provided by this invention involves performing steps S1-S4 at one end of the lattice arch frame forming device along the X direction to produce and feed three-dimensional butterfly ribs, and feeding the main ribs at the other end of the lattice arch frame forming device along the X direction. Then, the main ribs and three-dimensional butterfly ribs are automatically extruded, positioned, and welded in the lattice arch frame forming device. This improves the production efficiency of lattice arch frames, has a high degree of automation, requires no manual operation, and helps reduce production costs. By setting up a first gripping robot, a second gripping robot, and a third gripping robot, the fully automated transfer line operation of steps S1-S4 is realized, thereby achieving fully automated production of lattice arch frames and meeting the market demand for high-precision and high-efficiency lattice arch frame production. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the lattice arch frame involved in an embodiment of the present invention;

[0026] Figure 2 This is a flowchart of the automatic forming production process of the grating arch frame provided in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the automatic forming production equipment for grating arches provided in an embodiment of the present invention;

[0028] Figure 4 This is a front view of the automatic forming production equipment for lattice arch frames provided in an embodiment of the present invention;

[0029] Figure 5 This is a top view of the automatic forming production equipment for grating arches provided in an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the planar symmetrical figure-eight rib produced by the automatic forming production equipment for grid arch frames provided in this embodiment of the invention;

[0031] Figure 7 This is a schematic diagram of the planar arc-shaped "8" rib produced by the automatic forming production equipment for grid arch frames provided in this embodiment of the invention;

[0032] Figure 8 This is a schematic diagram of the three-dimensional butterfly rib feeding device in the automatic forming production equipment for grating arches provided in this embodiment of the invention;

[0033] Figure 9 This is a schematic diagram of the structure of the three-dimensional butterfly rib feeding device that is movably installed on the three-dimensional butterfly rib according to an embodiment of the present invention;

[0034] Figure 10 This is a front view of the grating arch forming device in the automatic grating arch forming production equipment provided in this embodiment of the invention;

[0035] Figure 11 This is a side view of the grating arch forming device in the automatic grating arch forming production equipment provided in this embodiment of the invention;

[0036] Figure 12 This is a front view of the rotating frame with an adjustment component according to an embodiment of the present invention;

[0037] Figure 13 This is a side view of an adjustment assembly mounted on a rotating frame according to an embodiment of the present invention;

[0038] Figure 14 This is a schematic diagram of the structure of the adjustment component involved in an embodiment of the present invention.

[0039] In the picture:

[0040] 100. Main reinforcement; 200. Three-dimensional butterfly reinforcement; 201. Planar symmetrical figure-eight reinforcement; 202. Planar arc-shaped figure-eight reinforcement; 300. Angle steel;

[0041] 1. Rectangular stirrup forming and welding device; 11. Wire feeding mechanism; 12. Stirrup bending mechanism; 13. Stirrup taking-up mechanism; 14. Stirrup welding mechanism; 15. Vertical storage mechanism; 16. First gripping robot;

[0042] 2. Planar figure-eight rib forming device; 21. Second gripping robot; 22. First welding robot; 23. Third welding robot;

[0043] 3. Three-dimensional butterfly tendon forming device; 31. Third gripping robot; 32. Storage area;

[0044] 4. Three-dimensional butterfly-shaped feeding device; 401. Mobile lifting trolley; 402. Base; 403. Transition seat; 404. Positioning seat; 405. First elastic element; 406. Second elastic element; 407. Bearing; 408. Rotary mounting seat; 409. Support rod; 410. Slide rail; 411. Slider; 412. First limiting element; 413. Second limiting element; 414. U-shaped buckle; 415. Long groove; 416. Guide surface;

[0045] 5. Main rib feeding device; 51. Y-axis slide rail;

[0046] 6. Grille arch forming device; 61. Second welding robot; 611. Welding assembly; 612. Angle steel gripping assembly; 62. Frame; 621. Support roller; 622. Second drive component; 623. Reducer; 624. First sprocket; 625. Second sprocket; 626. Chain; 627. Crossbeam; 628. Guide structure; 63. Rotating frame; 64. Adjustment assembly; 641. First drive component; 642. Cylinder seat; 643. Gripper cylinder; 644. Gripper finger; 645. Lead screw; 646. Base plate;

[0047] 7. Cantilever crane; 71. Arch frame grabbing assembly;

[0048] 8. Finished product transfer trolley. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0050] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0053] This invention provides an automated forming production process and equipment for lattice arch frames, used to achieve the following: Figure 1 The grid arch frame shown is produced using highly efficient and precise automated molding processes.

[0054] like Figure 2 The flowchart shown, combined with Figures 3-5 The automated forming process for the grating arch frame provided in this embodiment includes the following steps:

[0055] S1, the wire feeding mechanism 11 provides steel bars in the positive X direction and processes the steel bars into rectangular stirrups;

[0056] In this step, the wire-laying mechanism 11 can provide coiled or straight reinforcing bars. The reinforcing bars are first processed into rectangular stirrups for subsequent production processes. The processing of rectangular stirrups can be achieved using existing stirrup forming equipment.

[0057] S2, the first gripping robot 16 grips the rectangular stirrup onto the planar "8" shaped stirrup forming device 2, and the planar "8" shaped stirrup forming device 2 processes the rectangular stirrup into a planar "8" shaped stirrup.

[0058] S3, the second gripping robot 21 grips the planar "8" rib to the three-dimensional butterfly rib forming device 3, and the three-dimensional butterfly rib forming device 3 combines the two planar "8" ribs and processes them into a three-dimensional butterfly rib 200.

[0059] In this embodiment, the method for processing planar figure-eight ribs by the planar figure-eight rib forming device 2 and the method for processing three-dimensional butterfly ribs 200 by the three-dimensional butterfly rib forming device 3 can be obtained by adopting or referring to the three-dimensional butterfly rib forming equipment and forming method provided in the patent application with application number 2024110835699.

[0060] S4, the third gripping robot 31 grips the three-dimensional butterfly rib 200 onto the three-dimensional butterfly rib feeding device 4, and multiple three-dimensional butterfly ribs 200 are movably mounted on the three-dimensional butterfly rib feeding device 4.

[0061] S5, the main rib feeding device 5 feeds the main rib 100 to the grid arch forming device 6 in the reverse direction of X, and the three-dimensional butterfly rib feeding device 4 moves to the bottom of the grid arch forming device 6 in the forward direction of X. The three-dimensional butterfly rib feeding device 4 drives multiple three-dimensional butterfly ribs 200 to rise between multiple main ribs 100 to feed the three-dimensional butterfly ribs 200.

[0062] S6, the grid arch forming device 6 automatically extrudes, positions, and welds multiple main ribs 100 and multiple three-dimensional butterfly ribs 200, and welds angle steel 300 at both ends of the main ribs 100 to obtain the grid arch.

[0063] The automatic forming production process for grid arch frames provided by this invention involves performing steps S1-S4 at one end of the grid arch frame forming device 6 along the X direction to produce and feed the three-dimensional butterfly reinforcement 200, and feeding the main reinforcement 100 at the other end of the grid arch frame forming device 6 along the X direction. Then, the main reinforcement 100 and the three-dimensional butterfly reinforcement 200 are automatically extruded, positioned, and welded in the grid arch frame forming device 6. This improves the production efficiency of grid arch frames, has a high degree of automation, and helps reduce production costs. By setting up a first gripping robot 16, a second gripping robot 21, and a third gripping robot 31, the fully automated transfer and assembly line operation of rectangular stirrups, planar figure-eight reinforcements, and three-dimensional butterfly reinforcement 200 in steps S1-S4 is realized, thereby achieving fully automated production of grid arch frames and meeting the market demand for high-precision and high-efficiency grid arch frame production.

[0064] A cantilever crane 7 is provided on at least one side of the grid arch forming device 6 along the Y direction. The position of the cantilever crane 7 is located on one or both sides of the main rib feeding device 5 along the Y direction to reduce positional interference. The cantilever crane 7 can grab the formed grid arch and put it into the finished product transfer trolley 8. The finished product transfer trolley 8 transports the grid arch to the storage position, so that the grid arch forming device 6 can continue to perform the forming operation of the next grid arch.

[0065] In step S1, the rectangular stirrup forming process is as follows: the coiled steel bars provided by the wire laying mechanism 11 are straightened, lengthened, and cut, and then bent into rectangular steel bar frames by the stirrup bending mechanism 12; the rectangular steel bar frames slide down to the stirrup taking-up mechanism 13, and after the stirrup taking-up mechanism 13 rotates the rectangular steel bar frames once, they are transferred to the stirrup welding mechanism 14 for sealing welding to obtain rectangular stirrups; after the rectangular stirrups are rotated a second time by the stirrup taking-up mechanism 13, they are transported to the vertical storage mechanism 15 for storage.

[0066] The rectangular stirrup forming and welding device 1 includes a bending mechanism 12, a retracting mechanism 13, and a stirrup welding mechanism 14, all of which can be existing technologies. The bending mechanism 12 bends the steel bars into rectangular steel bar frames, which slide down to the retracting mechanism 13 for collection. The retracting mechanism 13 drives the rectangular steel bar frames to rotate automatically and move to the position of the stirrup welding mechanism 14, where the rectangular steel bar frames are sealed and welded and slag is removed. After welding, the resulting rectangular stirrups slide down to the retracting mechanism 13 for collection again. The retracting mechanism 13 rotates the rectangular stirrups and automatically places them on the horizontal conveying device for transport along the X-direction to the vertical storage mechanism 15. The rectangular stirrups are placed sequentially from bottom to top at the vertical storage mechanism 15. The first gripping robot 16 grips the topmost rectangular stirrups and places them onto the planar figure-eight stirrup forming device 2 for forming. Then, the vertical storage mechanism 15 drives multiple rectangular stirrups to rise one step height at a time, realizing individual gripping and feeding. The vertical height of the vertical storage mechanism 5 must meet the following requirements: when the rectangular stirrups step up from the bottom end to the top end of the vertical storage mechanism 15, the rectangular stirrups have sufficient natural cooling time to prevent weld cracking during the pressing process of the plane figure-eight stirrup forming device 2, thereby saving the production process of the rectangular stirrups and improving the efficiency of the entire production line.

[0067] In step S3, two three-dimensional butterfly rib forming devices 3 are spaced apart along the X direction. The two three-dimensional butterfly rib forming devices 3 share the first welding robot 22 for alternating welding. The planar figure-eight rib forming device 2 has its own third welding robot 23 for welding. The planar figure-eight rib includes a planar symmetrical figure-eight rib 201 and a planar arc-shaped figure-eight rib 202, such as... Figure 6 and Figure 7As shown, the planar figure-eight rib forming device 2 can alternately produce two planar symmetrical figure-eight ribs 201 and two planar arc-shaped figure-eight ribs 202. The three-dimensional butterfly rib 200 includes a first three-dimensional butterfly rib and a second three-dimensional butterfly rib. The two planar symmetrical figure-eight ribs 201 are combined and welded by a three-dimensional butterfly rib forming device 3 to obtain the first three-dimensional butterfly rib. The two planar arc-shaped figure-eight ribs 202 are combined and welded by another three-dimensional butterfly rib forming device 3 to obtain the second three-dimensional butterfly rib. On the three-dimensional butterfly rib feeding device 4, the three-dimensional butterfly ribs 200 are arranged in an alternating horizontal and vertical manner. It can be the first three-dimensional butterfly rib that is arranged in an alternating horizontal and vertical manner, or the second three-dimensional butterfly rib that is arranged in an alternating horizontal and vertical manner, or the first three-dimensional butterfly rib and the second three-dimensional butterfly rib that are arranged in an alternating horizontal and vertical manner in sequence. The specific arrangement can be adjusted according to the actual situation. Specifically, the first gripping robot 16 successively grips the rectangular stirrups onto the planar figure-eight stirrup forming device 2, and after extrusion forming, the third welding robot 23 welds them to obtain planar figure-eight stirrups. Then, the second gripping robot 21 grips the planar figure-eight stirrups onto the three-dimensional butterfly stirrup forming device 3. After forming two planar symmetrical figure-eight stirrups 201, the second gripping robot 21 successively grips the two planar symmetrical figure-eight stirrups 201 onto the same three-dimensional butterfly stirrup forming device 3 to form the first three-dimensional butterfly stirrup, and then welds them together by the first welding robot 22. When the planar figure-eight stirrup forming device 2 forms two planar arc-shaped figure-eight stirrups 202, the second gripping robot 21 successively grips the two planar arc-shaped figure-eight stirrups 202 onto another three-dimensional butterfly stirrup forming device 3 to form the second three-dimensional butterfly stirrup. It should be noted that, while the first welding robot 22 sequentially welds the first and second three-dimensional butterfly ribs along the X-direction, the second gripping robot 21 is also used to grip and store the formed first and second three-dimensional butterfly ribs in the first storage area 32 and the second storage area 32 respectively, alternating between horizontal and vertical placement, awaiting gripping and loading by the three-dimensional butterfly rib loading device 4. The first and second storage areas 32 are sequentially arranged along the Y-direction to facilitate the third gripping robot 31 moving along the Y-direction above the three-dimensional butterfly rib loading device 4 to grip and alternately place the three-dimensional butterfly ribs 200. It should also be noted that the curvature of the planar arc-shaped "8" rib 202 is preset according to the curvature of the grid arch frame.

[0068] In step S4, there are two three-dimensional butterfly rib feeding devices 4 and two grid arch frame forming devices 6. The two forming stations are set at intervals along the Y direction. The two three-dimensional butterfly rib feeding devices 4 feed the three-dimensional butterfly ribs 200 to the two forming stations respectively.

[0069] like Figure 5As shown, the three-dimensional butterfly tendon feeding device 4 is arranged at intervals along the Y direction and can move autonomously. After placing and feeding the three-dimensional butterfly tendon 200 from the storage area 32 at one end of the three-dimensional butterfly tendon forming device 3, the three-dimensional butterfly tendon feeding device 4 moves to the bottom of the two forming stations to wait for feeding.

[0070] like Figure 8 and Figure 9 As shown, the three-dimensional butterfly rib feeding device 4 includes a mobile lifting trolley 401, a transition seat 403, and a positioning seat 404. The top of the mobile lifting trolley 401 is equipped with a base 402. The mobile lifting trolley 401 can move the base 402 to below the rotating frame 63 and perform lifting movements to align the three-dimensional butterfly rib 200 with the main rib 100, facilitating the installation and feeding of the three-dimensional butterfly rib 200. The mobile lifting trolley 401 is equipped with an autonomous movement control mechanism. The mobile lifting trolley 401 can be moved and lifted using a scissor lift with wheels installed at the bottom. The base 402 is fixed to the top lifting platform of the mobile lifting trolley 401. Multiple transition seats 403 are provided, spaced apart along the X-axis on the base 402. Each transition seat 403 is slidably mounted on the base 402 along the Y-axis. When the three-dimensional butterfly rib 200 is installed on the positioning seat 404, the three-dimensional butterfly rib 200 can rotate and move accordingly after being subjected to the force of the main rib 100. This achieves automatic positioning of multiple three-dimensional butterfly ribs 200 with the main rib 100 while the main rib 100 is bending, improving positioning efficiency. The positioning seat 404 is rotatably mounted on the transition seats 403, with the rotation axis set along the Z-axis. The three-dimensional butterfly rib 200 is mounted on the positioning seat 404 and can adaptively move and rotate to position itself according to the curvature of the main rib 100. The upper surface of the base 402 is provided with two parallel slide rails 410, and the lower surface of the transition seat 403 is provided with two sets of sliders 411. Each set of two sliders 411 is slidably mounted on one slide rail 410. The two slide rails 410 are arranged along the Y direction, and the base 402 extends along the X direction. Two or more transition seats 403 can be arranged at intervals on one base 402, thereby allowing multiple three-dimensional butterfly ribs 200 to be installed. Preferably, the cross-section of the slide rails 410 and the sliders 411 is T-shaped.

[0071] In order to achieve automatic reset of the transition seat 403 and the positioning seat 404 after the three-dimensional butterfly rib 200 is fed, the three-dimensional butterfly rib feeding device 4 also includes a first elastic element 405 and a second elastic element 406. The two ends of the first elastic element 405 are respectively connected to the base 402 and the transition seat 403, and the transition seat 403 can slide and reset under the elastic force of the first elastic element 405; the two ends of the second elastic element 406 are respectively connected to the transition seat 403 and the positioning seat 404, and the positioning seat 404 can rotate and reset under the action of the second elastic element 406.

[0072] The first elastic element 405 can reset the transition seat 403 to its initial position, facilitating the installation of the next three-dimensional butterfly rib 200 and ensuring consistent adjustment of the initial positions of multiple three-dimensional butterfly ribs 200, thus preventing insufficient movement of the three-dimensional butterfly ribs 200 during automatic positioning and affecting the positioning effect. The first elastic element 405 can be a spring, specifically a compression spring or a tension spring. In some embodiments, two first elastic elements 405 are spaced apart between the base 402 and the transition seat 403. When the transition seat 403 slides on the base 402, one first elastic element 405 stretches while the other first elastic element 405 compresses, ensuring successful reset of the transition seat 403. For example... Figure 9 When the second elastic element 406 is a spring, its two ends are connected to the transition seat 403 and the positioning seat 404, respectively. When the positioning seat 404 rotates relative to the transition seat 403, the second elastic element 406 is stretched or compressed to generate elastic force. When the three-dimensional butterfly rib 200 is aligned with the positioning seat 404, the positioning seat 404 returns to its initial position under the elastic force of the second elastic element 406. The transition seat 403 and the positioning seat 404 are each made of plates, which are parallel to each other and spaced apart. The second elastic element 406 is disposed between the two plates and its two ends are fixed by a connector. In some embodiments, two second elastic elements 406 are spaced apart between the transition seat 403 and the positioning seat 404. When the positioning seat 404 rotates, one second elastic element 406 is compressed to generate elastic force, and the other second elastic element 406 is extended to generate elastic force. The elastic forces of the two second elastic elements 406 act simultaneously on the positioning seat 404 to achieve the rotational reset of the positioning seat 404, which helps to ensure the reset effect. Of course, in some embodiments, the second elastic element 406 can also be a torsion spring, with both ends of the torsion spring fixed on the transition seat 403 and the positioning seat 404 respectively, which can also realize the rotational reset of the positioning seat 404. However, when installing the torsion spring, attention should be paid to the direction of rotational reset.

[0073] In some embodiments, the three-dimensional butterfly rib feeding device 4 further includes a bearing 407. The outer ring of the bearing 407 is fixed on the transition seat 403, and the inner ring of the bearing 407 is fixedly mounted on a rotating shaft. A positioning seat 404 is fixed to the top of the rotating shaft. The three-dimensional butterfly rib 200 is coaxially arranged with the rotating shaft. When the main rib 100 bends, it drives the three-dimensional butterfly rib 200 to be positioned accordingly, and the positioning seat 404 rotates around the rotating shaft accordingly. By setting the bearing 407 for connection, it is beneficial to reduce the rotational friction between the positioning seat 404 and the transition seat 403, and to facilitate the rotation of the positioning seat 404 under the drive of the three-dimensional butterfly rib 200.

[0074] In some embodiments, the positioning seat 404 is provided with a rotating mounting seat 408 and a support seat. Two sets of support seats are provided, located on opposite sides of the rotating mounting seat 408. These two sets of support seats can abut and limit the movement of the inner ends of the three-dimensional butterfly rib 200. The rotating mounting seat 408 is coaxially arranged with the rotating shaft. A U-shaped buckle 414 is provided on the rotating mounting seat 408, and the middle position of the three-dimensional butterfly rib 200 is elastically pressed into the U-shaped buckle 414. The opposite inner surfaces of the U-shaped buckle 414 are provided with protruding ribs. When the middle position of the three-dimensional butterfly rib 200 is placed inside the U-shaped buckle 414, the three-dimensional butterfly rib 200 is pressed downwards below the protruding ribs, thus limiting the movement of the three-dimensional butterfly rib 200 within the U-shaped buckle 414. The height of the U-shaped clip 414 along the Z-direction needs to match the dimensions of the three-dimensional butterfly rib 200. When the middle position of the three-dimensional butterfly rib 200 is engaged in the U-shaped clip 414, both ends of the three-dimensional butterfly rib 200 are supported on the positioning seat 404 to achieve stable installation. The three-dimensional butterfly rib 200 has a first installation position and a second installation position, with the installation angles of the first installation position and the second installation position differing by 90°. The installation angles of two adjacent three-dimensional butterfly ribs 200 also differ by 90°, corresponding to the horizontal and vertical placement positions of the three-dimensional butterfly rib 200, respectively. The U-shaped clip 414 is suitable for installing and fixing the three-dimensional butterfly rib 200 in both horizontal and vertical placement positions, offering good versatility.

[0075] In some embodiments, the support base includes two support rods 409, which are spaced apart along the Y direction on the positioning seat 404. The distance between the two support rods 409 is adjustable to accommodate three-dimensional butterfly ribs 200 of various sizes, improving adaptability. The distance can be adjusted according to the size of the three-dimensional butterfly rib 200, ensuring that the two support rods 409 are in close contact with the three-dimensional butterfly rib 200 for positioning and fixation. Specifically, the distance between the two support rods 409 can be adjusted and fixed by providing a Y-direction elongated groove 415 at the bottom end of the support rod 409, a threaded hole on the positioning seat 404, and a bolt passing through the Y-direction elongated groove 415 and threaded into the threaded hole. Preferably, each of the two support rods 409 has a guide surface 416 at its top, and the distance between the two guide surfaces 416 gradually decreases from bottom to top.

[0076] In some embodiments, the transition seat 403 is provided with a first limiting member 412, and the positioning seat 404 is provided with a second limiting member 413. When the first limiting member 412 and the second limiting member 413 abut against each other, they can limit the rotation angle and rotation direction of the positioning seat 404. The purpose of providing the first limiting member 412 and the second limiting member 413 is to limit the rotation angle and rotation direction of the positioning seat 404. Figure 9As shown, the initial state of the positioning seat 404 is when the first limiting member 412 and the second limiting member 413 abut. At this time, the positioning seat 404 can only rotate counterclockwise, and the first elastic member 405 has a small compression or elongation, so that the first limiting member 412 and the second limiting member 413 elastically abut against each other, which is beneficial for installing the three-dimensional butterfly rib 200 when the positioning seat 404 is in this stable initial position. It can be understood that the positioning seat 404 is rotatably mounted on the transition seat 403. By setting the first limiting member 412 and the second limiting member 413, the rotation direction of the positioning seat 404 is limited. Therefore, when multiple three-dimensional butterfly ribs 200 are positioned with the main rib 100, the installation orientation of multiple three-dimensional butterfly rib feeding devices 4 needs to be set in advance to ensure that when the main rib 100 bends, the three-dimensional butterfly ribs 200 can rotate automatically for positioning.

[0077] In step S5 of the automatic forming production process of the grid arch frame provided by the present invention, the main rib feeding device 5 can move along the Y direction to alternately feed the two forming stations, and the two forming stations share the second welding robot 61.

[0078] like Figure 3 As shown, the main rib feeding device 5 is slidably mounted on the Y-axis slide rail 51 below, allowing the main rib feeding device 5 to move and feed along the Y-axis. The main rib feeding device 5 also feeds along the X-axis. It can be understood that the grating arch includes four main ribs 100, two on the upper layer and the other two on the lower layer. When feeding the main ribs 100, the main rib feeding device 5 moves along the Y-axis to feed the two upper-layer main ribs 100 sequentially, then rotates the two fed main ribs 100 to the lower layer (i.e., flips them 180°). The main rib feeding device 5 then moves along the Y-axis again to feed the two flipped-up positions. After completing the feeding of the main ribs 100 at one forming station, it moves along the Y-axis to another forming station to feed the main ribs 100, thus achieving alternating operation. The system features two forming stations spaced apart along the Y-axis. Two second welding robots 61 are positioned between these stations, allowing for simultaneous welding of the grating arch at one station before switching to the other station to weld another grating arch. Simultaneously, after the finished grating arch at the first station is lifted by the cantilever crane 7 onto the finished product transfer trolley 8, the first station continues feeding the main ribs 100 and the three-dimensional butterfly ribs 200, before automatically welding the next grating arch. This alternating operation of the two forming stations reduces the number of second welding robots 61 required, lowers production costs, and improves the production efficiency of the grating arches.

[0079] In some embodiments, the molding station is provided with a rotating frame 63, and the rotating frame 63 is provided with multiple pairs of adjusting components 64. After the main rib 100 is fed, it is clamped on the multiple pairs of adjusting components 64, and the rotating frame 63 can drive the adjusting components 64 to rotate.

[0080] like Figures 10-14As shown, the grid arch forming device 6 includes a second welding robot 61, a frame 62, a rotating frame 63 rotatably mounted on the frame 62, and multiple pairs of adjusting components 64 mounted on the rotating frame 63. The rotating shaft of the rotating frame 63 is arranged along the X direction. A crossbeam 627 is provided on the frame 62 above the rotating frame 63, and the crossbeam 627 extends along the X direction. The second welding robot 61 is mounted on the crossbeam 627 and can be fixedly installed or slidably installed. The free end of the second welding robot 61 is equipped with a welding component 611 and an angle steel gripping component 612. The welding component 611 is used to weld the main ribs 100 and the three-dimensional butterfly ribs 200 into shape. The three-dimensional butterfly rib feeding device 4 is located below the rotating frame 63. The three-dimensional butterfly rib feeding device 4 can drive multiple three-dimensional butterfly ribs 200 to move up and down simultaneously for feeding. The main rib feeding device 5 is located at one end of the rotating frame 63 and is used to provide multiple main ribs 100. Multiple pairs of adjustment components 64 are spaced apart along the X direction on the rotating frame 63. The multiple pairs of adjustment components 64 are used to bend the four main ribs 100 into a specified shape. The two pairs of adjustment components 64 are arranged opposite each other along the Y direction and can move synchronously along the Y direction. The multiple pairs of adjustment components 64 move and drive the four main ribs 100 to bend at different positions according to the shape of the grid arch frame. Two pairs of adjustment components 64 drive four main ribs 100 to move simultaneously in the positive or negative Y direction. Multiple pairs of adjustment components 64 have a moving distance set according to the curvature of the grid arch frame along the X direction, thereby realizing the curvature shaping of the main ribs 100. Since the three-dimensional butterfly rib 200 is movably installed on the three-dimensional butterfly rib feeding device 4, when the main rib 100 moves and deforms, the three-dimensional butterfly rib 200 can follow the main rib 100 to maintain the positioning relationship between the three-dimensional butterfly rib 200 and the main rib 100. The bending arc is simultaneously achieved to realize the final positioning, which facilitates the welding component 611 to directly weld the main rib 100 and the three-dimensional butterfly rib 200. It is understood that both the welding assembly 611 and the angle steel gripping assembly 612 are located at the free end of the second welding robot 61. The second welding robot 61 is a multi-degree-of-freedom mechanical structure that can drive the welding assembly 611 and the angle steel gripping assembly 612 to sequentially weld multiple three-dimensional butterfly ribs 200 onto the main rib 100 along the X direction. After welding is completed, the angle steel 300 is gripped and welded to fix the shape. After the three-dimensional butterfly ribs 200 and the main rib 100 are spot-welded and fixed, the three-dimensional butterfly rib feeding device 4 can be lowered and withdrawn, that is, lowered to the clearance position and returned to the three-dimensional butterfly rib forming device 3 for material retrieval. After the welding assembly 611 performs full welding on the three-dimensional butterfly ribs 200 and the main rib 100, the rotating frame 63 rotates and flips, and the welding assembly 611 continues to weld and form the other side of the three-dimensional butterfly ribs 200 and the main rib 100 to obtain the grid arch frame.

[0081] The adjustment component 64 includes a first drive member 641, a cylinder seat 642, and a gripper cylinder 643. The first drive member 641 is fixed on the rotating frame 63. The output end of the first drive member 641 is provided with a lead screw 645, which extends along the Y direction. The first drive member 641 is used to drive the lead screw 645 to move along the Y direction. The end of the lead screw 645 is provided with a base plate 646, and two cylinder seats 642 are spaced apart on the base plate 646. There are two gripper cylinders 643, which are fixed on two cylinder seats 642 respectively. Each gripper cylinder 643 can clamp and fix one main rib 100 respectively. The first driving component 641 is a linear driving component, such as a cylinder, or a screw jack. The screw 645 moves along the Y-axis. The screws 645 of the two paired adjusting components 64 are coaxial and collinear. Base plates 646 are fixedly mounted on opposite ends of the two screws 645. The base plates 646 are vertical (Z-axis) and perpendicular to the screws 645. Two cylinder seats 642 are spaced apart along the Z-axis on the base plates 646 and respectively located on the upper and lower sides of the screws 645. Each cylinder seat 642 is fixedly mounted with a gripper cylinder 643. When the main rib 100 is fed, the two paired adjusting components 64 first move away from each other and are in their initial positions, i.e., multiple adjusting components 64 are collinearly arranged on the same side along the X-axis. To facilitate the feeding of the main rib feeding device 5, the rotating frame 63 is provided with multiple guide structures 628, each corresponding to a gripper cylinder 643. Figure 7 The gripper cylinder 643 includes gripping fingers 644, which are semi-circular sleeves. The main rib 100 can be gripped in two semi-circular sleeves. Multiple guide structures 628 can guide the main rib 100 into the multiple semi-circular sleeves respectively, improving the feeding efficiency of the main rib 100. In some embodiments, the guide structures 628 can also be provided on the gripping fingers 644, with the flared opening of the guide structures 628 facing the feeding direction of the main rib 100 for guiding feeding. After the main ribs 100 in the pair of adjusting components 64 are fed by the main rib feeding device 5 along the Y direction, the rotating frame 63 rotates, and the main rib feeding device 5 feeds the other two main ribs 100. It can be understood that the guide structures 628 have at least two rows, corresponding to the moving feeding direction of the main rib feeding device 5 respectively.

[0082] In some embodiments, the rotating frame 63 is provided with support rollers 621 at both ends, the support rollers 621 are rotatably mounted on the frame 62, and at least one support roller 621 is connected to a second drive member 622, the second drive member 622 being configured to drive the support rollers 621 to rotate so as to drive the rotating frame 63 to rotate.

[0083] like Figure 12The second driving component 622 is used to drive the rotation of the rotating frame 63. In a preferred embodiment, a limiting structure can be provided on the frame 62 to limit the rotation position of the rotating frame 63, preventing excessive rotation or reverse rotation and ensuring work consistency. The support rollers 621 are fixed at both ends of the rotating frame 63. The second driving component 622 can be driven and controlled by a servo motor and a reducer 623. Both the reducer 623 and the servo motor are fixed on the frame 62. The output end of the reducer 623 is provided with a first sprocket 624, and the support rollers 621 are provided with a second sprocket 625. A chain 626 is installed between the first sprocket 624 and the second sprocket 625 for transmission, thereby driving the rotation of the support rollers 621 and the rotating frame 63. The diameter of the first sprocket 624 is smaller than the diameter of the second sprocket 625.

[0084] Combination Figure 10 The cantilever crane 7 can be fixed to one side of the frame 62, generally on the ground. The cantilever crane 7 includes an arch frame gripping assembly 71, which is used to grip the formed grid arch frame.

[0085] In this embodiment, two rotating frames 63 are provided, and the two rotating frames 63 are spaced apart along the Y direction at two forming stations. Two three-dimensional butterfly rib feeding devices 4 feed materials to the two rotating frames 63 respectively. The welding components 611 at the ends of the two second welding robots 61 simultaneously weld and form the grid arch on one rotating frame 63, and then turn to the other rotating frame 63 to weld and form another grid arch. At the same time, the cantilever crane 7 performs the unloading operation on the formed grid arch on the first rotating frame 63. The main rib feeding device 5 and the three-dimensional butterfly rib feeding device 4 feed the main rib 100 and the three-dimensional butterfly rib 200 to the first rotating frame 63, realizing the sequential welding and forming of the two grid arches, which helps to improve efficiency.

[0086] Based on the configuration of the rotating frame 63 and the adjusting components 64, in step S5, during the feeding process of the main rib 100 by the main rib feeding device 5, the main rib feeding device 5 first feeds two main ribs 100 at the same height of the multiple pairs of adjusting components 64, and then the rotating frame 63 drives the multiple pairs of adjusting components 64 to rotate 180°, and the main rib feeding device 5 feeds the other two main ribs 100 at the same height of the multiple pairs of adjusting components 64.

[0087] In step S6, the process of automatically extruding, positioning, and welding the main rib 100 and the three-dimensional butterfly rib 200 is as follows: First, the main rib 100 is automatically extruded and bent into an arc and automatically positioned with the three-dimensional butterfly rib 200. One side of the main rib 100 and the three-dimensional butterfly rib 200 is spot welded. Then, the three-dimensional butterfly rib feeding device 4 descends and exits. One side of the main rib 100 and the three-dimensional butterfly rib 200 is fully welded. The rotating frame 63 drives the adjusting component 64 to rotate 180°, and the other side of the main rib 100 and the three-dimensional butterfly rib 200 is fully welded.

[0088] This invention also provides an automatic forming production equipment for grating arch frames, used to realize the automatic forming production process of grating arch frames; such as Figures 3-14 The automatic forming production equipment for grid arch frames includes a rectangular stirrup forming and welding device 1, a planar "8" shaped rib forming device 2, a three-dimensional butterfly rib forming device 3, a grid arch frame forming device 6, and a main rib feeding device 5 arranged sequentially along the X direction. It also includes a three-dimensional butterfly rib feeding device 4 that moves and lifts below the grid arch frame forming device 6. The rectangular stirrup forming and welding device 1, the planar "8" shaped rib forming device 2, and the three-dimensional butterfly rib forming device 3 are used to obtain rectangular stirrups, planar "8" shaped ribs, and three-dimensional butterfly ribs 200, respectively, and place multiple three-dimensional butterfly ribs 200 on the three-dimensional butterfly rib feeding device 4. The three-dimensional butterfly rib feeding device 4 feeds multiple three-dimensional butterfly ribs 200 to the grid arch frame forming device 6. The main rib feeding device 5 feeds multiple main ribs 100 to the grid arch frame forming device 6. The grid arch frame forming device 6 automatically extrudes and bends the multiple main ribs 100 and automatically positions them with the multiple three-dimensional butterfly ribs 200, and then welds them. Angle steel 300 is welded to both ends of the main ribs 100 to obtain the grid arch frame.

[0089] The rectangular stirrup forming and welding device 1 and the planar figure-eight stirrup forming device 2 are located within the stroke range of the first gripping robot 16. The planar figure-eight stirrup forming device 2, the three-dimensional butterfly stirrup forming device 3, the grid arch forming device 6, and the main bar feeding device 5 can share the frame 62 to achieve an integrated structure, which facilitates the sharing of the first welding robot 22, the second welding robot 61, the first gripping robot 16, the second gripping robot 21, and the third gripping robot 31 to form an automated production line. By setting up two three-dimensional butterfly stirrup forming devices 3, two three-dimensional butterfly stirrup feeding devices 4, and two grid arch forming devices 6, and correspondingly setting up two cantilever cranes 7 and two finished product transfer trolleys 8, it is beneficial to optimize and improve the working efficiency of the first welding robot 22, the second welding robot 61, the second gripping robot 21, and the third gripping robot 31, and greatly improve the production efficiency of the grid arch.

[0090] The automatic forming production equipment for grid arch frames provided by the present invention, by sequentially setting a rectangular stirrup forming and welding device 1, a planar figure-eight reinforcement forming device 2, and a three-dimensional butterfly reinforcement forming device 3 at one end of the grid arch frame forming device 6 along the X direction, can carry out automated continuous production from steel bars to three-dimensional butterfly reinforcement 200. After the three-dimensional butterfly reinforcement 200 obtained by the three-dimensional butterfly reinforcement forming device 3 is temporarily stored in the storage area 32, it can be directly picked up by the second gripping robot 21 and fed to the three-dimensional butterfly reinforcement feeding device 4, realizing continuous automated feeding of the three-dimensional butterfly reinforcement feeding device 4; by performing the feeding of the main reinforcement 100 at the other end of the grid arch frame forming device 6 along the X direction, the three-dimensional butterfly reinforcement 200 and the main reinforcement 100 at both ends are fed independently, which helps to improve the feeding efficiency. The grid arch forming device 6 can automatically extrude, position, and weld the main reinforcement 100 and the three-dimensional butterfly reinforcement 200, improving the production efficiency of the grid arch and achieving a high degree of automation, which helps to reduce production costs. By setting up the first gripping robot 16, the second gripping robot 21, and the third gripping robot 31, it facilitates the transfer of rectangular stirrups, planar figure-eight reinforcements, and three-dimensional butterfly reinforcements 200, reducing the requirements for equipment and realizing fully automated transfer assembly line operation. This enables fully automated production of grid arches, meeting the market demand for high-precision and high-efficiency grid arch production.

[0091] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A process for the automatic forming of lattice arches, characterized in that, It comprises the following steps: S1, the wire feeding mechanism (11) provides the steel bar along the X direction, and processes the steel bar into a rectangular stirrup; S2, the first grabbing robot (16) grabs the rectangular stirrup to the plane "8" shaped stirrup forming device (2), which processes the rectangular stirrup into a plane "8" shaped stirrup; S3, the second grabbing robot (21) grabs the plane "8" shaped stirrup to the three-dimensional butterfly stirrup forming device (3), which combines two plane "8" shaped stirrups and processes them into a three-dimensional butterfly stirrup (200); S4, the third grabbing robot (31) grabs the three-dimensional butterfly stirrup (200) to the three-dimensional butterfly stirrup feeding device (4), and a plurality of three-dimensional butterfly stirrups (200) are movably installed on the three-dimensional butterfly stirrup feeding device (4); S5, the main bar feeding device (5) feeds the main bar (100) to the grid arch forming device (6) along the X direction, and the three-dimensional butterfly stirrup feeding device (4) moves to the lower side of the grid arch forming device (6) along the X direction to feed the three-dimensional butterfly stirrup (200); S6, the grid arch forming device (6) automatically extrudes, positions and welds a plurality of main bars (100) and a plurality of three-dimensional butterfly stirrups (200), and an angle steel (300) is welded at both ends of the main bar (100) to obtain a grid arch; The three-dimensional butterfly stirrup feeding device (4) is provided with two, the grid arch forming device (6) is provided with two forming stations, the two forming stations are arranged along the Y direction, and the two three-dimensional butterfly stirrup feeding devices (4) correspond to the two forming stations to feed the three-dimensional butterfly stirrup (200); the forming station is provided with a rotating frame (63), a plurality of pairs of adjusting assemblies (64) are arranged on the rotating frame (63), the main bar (100) is clamped on the plurality of pairs of adjusting assemblies (64) after feeding, and the rotating frame (63) can drive the adjusting assemblies (64) to rotate; The three-dimensional butterfly rib loading device (4) comprises a mobile lifting trolley (401), a transition seat (403) and a positioning seat (404), the top end of the mobile lifting trolley (401) is provided with a base (402), the mobile lifting trolley (401) can drive the base (402) to move below the rotating frame (63) and move up and down to align the three-dimensional butterfly rib (200) with the main rib (100); the transition seat (403) is provided with a plurality of transition seats (403) which are spaced apart along the X direction on the base (402), each transition seat (403) is respectively slidably installed on the base (402), the sliding direction is along the Y direction, the positioning seat (404) is rotatably provided on the transition seat (403), and the rotation shaft is arranged along the Z direction; the three-dimensional butterfly rib (200) is arranged on the positioning seat (404), and the three-dimensional butterfly rib (200) can adaptively move and rotate with the curvature of the main rib (100); when the three-dimensional butterfly rib (200) is installed on the positioning seat (404), the three-dimensional butterfly rib (200) can rotate and move with the main rib (100) after being acted on by the main rib (100); the upper surface of the base (402) is provided with two parallel sliding rails (410), the lower surface of the transition seat (403) is provided with two groups of sliding blocks (411), each group of two sliding blocks (411) is slidably installed on one sliding rail (410), the two sliding rails (410) are arranged along the Y direction, the base (402) is arranged along the X direction, two or more than three transition seats (403) are arranged on one base (402), and then a plurality of three-dimensional butterfly ribs (200) can be installed. The three-dimensional butterfly rib loading device (4) further comprises a first elastic member (405) and a second elastic member (406), the two ends of the first elastic member (405) are connected with the base (402) and the transition seat (403) respectively, and the transition seat (403) can slide and reset under the elastic force of the first elastic member (405); the two ends of the second elastic member (406) are connected with the transition seat (403) and the positioning seat (404) respectively, and the positioning seat (404) can rotate and reset under the action of the second elastic member (406).

2. The automatic forming process of grid arches according to claim 1, characterized in that, In step S3, the two three-dimensional butterfly rib forming devices (3) are arranged along the X direction, and the first welding robot (22) is used for alternating welding.

3. The automatic forming process of grid arches according to claim 1, characterized in that, In step S5, the main rib loading device (5) can move along the Y direction to alternately load the two forming stations, and the second welding robot (61) is used for alternating welding.

4. The automatic forming process of grid arches according to claim 1, characterized in that, In the process of loading the main bars (100) by the main bar loading device (5) in step S5, the main bar loading device (5) first loads two main bars (100) of the same height of multiple pairs of the adjusting assembly (64), then the rotating frame (63) drives multiple pairs of the adjusting assembly (64) to rotate 180°, and the main bar loading device (5) loads another two main bars (100) of the same height of multiple pairs of the adjusting assembly (64).

5. The automatic forming process of grid scaffolding according to claim 1, characterized in that, In step S6, the process of automatically extruding, positioning and welding the main bars (100) and the three-dimensional butterfly bars (200) is as follows: first, the main bars (100) are automatically extruded and bent, and are automatically positioned with the three-dimensional butterfly bars (200), and the main bars (100) are spot welded with one side of the three-dimensional butterfly bars (200); then the three-dimensional butterfly bar loading device (4) is lowered and withdrawn; the main bars (100) and one side of the three-dimensional butterfly bars (200) are fully welded; the rotating frame (63) drives the adjusting assembly (64) to rotate 180°, and the other side of the main bars (100) and the three-dimensional butterfly bars (200) is fully welded.

6. The automatic forming process of grid scaffolding according to claim 1, characterized in that, In step S1, the forming process of the rectangular hoop bar is as follows: after the steel bar is straightened, cut to a certain length and cut off, the rectangular steel bar frame is bent by the bending hoop mechanism (12); the rectangular steel bar frame falls to the hoop collecting mechanism (13), and after one rotation of the hoop collecting mechanism (13), the rectangular steel bar frame is transferred to the hoop welding mechanism (14) for seal welding to obtain the rectangular hoop bar; after two rotations of the hoop collecting mechanism (13), the rectangular hoop bar is conveyed to the vertical storage mechanism (15) for storage and cooling.

7. The automatic forming process of grid scaffolding according to claim 2, characterized in that, The planar "8" shaped bar includes a planar symmetric "8" shaped bar (201) and a planar arc-shaped "8" shaped bar (202), and the planar "8" shaped bar forming device (2) can alternately produce the planar symmetric "8" shaped bar (201) and the planar arc-shaped "8" shaped bar (202).

8. The automatic forming process of grid arches according to claim 7, characterized in that, The three-dimensional butterfly bar (200) includes a first three-dimensional butterfly bar and a second three-dimensional butterfly bar, two planar symmetric "8" shaped bars (201) are combined and welded by one three-dimensional butterfly bar forming device (3) to obtain the first three-dimensional butterfly bar, two planar arc-shaped "8" shaped bars (202) are combined and welded by another three-dimensional butterfly bar forming device (3) to obtain the second three-dimensional butterfly bar, and the first three-dimensional butterfly bar and the second three-dimensional butterfly bar are alternately placed on the three-dimensional butterfly bar loading device (4).

9. A lattice arch rib automatic forming production equipment for realizing the lattice arch rib automatic forming production process of any one of claims 1-8; characterized in that, The lattice arch automatic forming production equipment comprises a rectangular hoop forming and welding device (1), a plane "8" shaped steel forming device (2), a three-dimensional butterfly shaped steel forming device (3), a lattice arch forming device (6) and a main steel bar feeding device (5) arranged in sequence along the X direction, and further comprises a three-dimensional butterfly shaped steel feeding device (4) movably and liftable below the lattice arch forming device (6), the rectangular hoop forming and welding device (1), the plane "8" shaped steel forming device (2) and the three-dimensional butterfly shaped steel forming device (3) are respectively used for obtaining rectangular hoop, plane "8" shaped steel and three-dimensional butterfly shaped steel (200) and placing multiple three-dimensional butterfly shaped steels (200) on the three-dimensional butterfly shaped steel feeding device (4), the three-dimensional butterfly shaped steel feeding device (4) feeds multiple three-dimensional butterfly shaped steels (200) to the lattice arch forming device (6), the main steel bar feeding device (5) feeds multiple main steels (100) to the lattice arch forming device (6), the lattice arch forming device (6) automatically extrudes and bends the multiple main steels (100) and automatically positions the multiple main steels (100) and the multiple three-dimensional butterfly shaped steels (200), then performs welding and welds angle steels (300) at both ends of the main steels (100), and finally obtains the lattice arch.

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