Three-dimensional butterfly rib forming equipment

Abstract

The utility model belongs to the technical field of steel bar forming, and discloses three-dimensional butterfly bar forming equipment. The three-dimensional butterfly rib forming equipment comprises a feeding device, a plane forming device, a first three-dimensional forming device, a second three-dimensional forming device and an unpowered conveying device which are sequentially arranged in the first direction. The plane forming device is used for forming a rectangular stirrup into a plane butterfly rib. The first three-dimensional forming device is used for forming the two plane butterfly ribs into a first three-dimensional butterfly rib; the second three-dimensional forming device is used for forming the two plane butterfly ribs into a second three-dimensional butterfly rib; the mechanical arm can walk in the first direction and grab and place the rectangular stirrups, the plane butterfly bars and the three-dimensional butterfly bars. According to the forming device, one-time machining forming from rectangular stirrups and plane butterfly ribs to three-dimensional butterfly ribs is achieved, the forming efficiency is high, the occupied space of the device is small, and the forming requirements of the three-dimensional butterfly ribs in various modes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar forming, in particular to a three-dimensional butterfly bar forming device. Background Art

[0002] The butterfly bar, also known as the 8-shaped bar, is formed by bending the steel bar into a rectangular stirrup by a hoop bending machine, and then performing plane pressing by a forming machine or a pressing machine, and finally welding or binding. It has the function of strengthening and enhancing the overall strength of the mesh. When the plane butterfly bar is used for the support of the grid arch, a three-dimensional butterfly bar composed of two plane butterfly bars is often adopted.

[0003] The three-dimensional butterfly bar is formed by combining and welding two plane butterfly bars through the way of vertical arc bending. Since the overall shape of the tunnel arch is generally arc-shaped, the three-dimensional butterfly bar needs two modes during use. The first mode is the three-dimensional butterfly bar composed of two plane symmetric butterfly bars, and the second mode is the three-dimensional butterfly bar composed of two plane arc-shaped butterfly bars. The two modes are alternately arranged and welded and fixed on the grid arch. The forming equipment adopted by the traditional processing method is complex, occupies a large space, and requires manual picking of materials multiple times to transfer the working positions. The automation degree is low, the forming efficiency is low, and the consistency of parts in the same batch is poor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a three-dimensional butterfly bar forming device to solve the problems of complex forming equipment and low forming efficiency of the three-dimensional butterfly bar in multiple modes.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model first provides a three-dimensional butterfly bar forming device, including:

[0007] A feeding device for providing rectangular stirrups;

[0008] A plane forming device for performing plane extrusion forming and welding fixation on the rectangular stirrup to obtain a plane butterfly bar, where the plane butterfly bar includes a plane symmetric butterfly bar and a plane arc-shaped butterfly bar;

[0009] A first three-dimensional forming device for performing vertical extrusion forming and welding fixation on two plane symmetric butterfly bars to obtain a first three-dimensional butterfly bar;

[0010] A second three-dimensional forming device for performing vertical extrusion forming and welding fixation on two plane arc-shaped butterfly bars to obtain a second three-dimensional butterfly bar;

[0011] A non-powered conveying device for storing and conveying the first three-dimensional butterfly bar and the second three-dimensional butterfly bar;

[0012] A manipulator, the feeding device, the planar forming device, the first three-dimensional forming device, the second three-dimensional forming device, and the unpowered conveying device are arranged in sequence along a first direction. The manipulator can walk along the first direction and respectively grasp and place the rectangular stirrups, the planar symmetric butterfly stirrups, the planar arc-shaped butterfly stirrups, the first three-dimensional butterfly stirrups, and the second three-dimensional butterfly stirrups, and alternately place the first three-dimensional butterfly stirrups and the second three-dimensional butterfly stirrups on the unpowered conveying device.

[0013] In some embodiments, the feeding device includes two vertical conveyor belts arranged at intervals along the first direction. Partition plates are provided on both of the two vertical conveyor belts, and the rectangular stirrups are placed on the partition plates. The vertical conveyor belts can sequentially convey the rectangular stirrups below upward.

[0014] In some embodiments, at least one of the vertical conveyor belts is slidably arranged on a horizontal slide rail to adjust the distance between the two vertical conveyor belts. The horizontal slide rail extends along the first direction.

[0015] In some embodiments, the planar forming device is arranged on a fixed base. The planar forming device includes:

[0016] Rotating molds, there are two of them. The two rotating molds are rotatably arranged on the fixed base, and the two rotating molds are arranged at intervals along the first direction. The rectangular stirrups are sleeved on the two rotating molds;

[0017] First clamping driving mechanisms, there are two of them. The two first clamping driving mechanisms are fixed on the fixed base, and the two first clamping driving mechanisms are arranged oppositely along a second direction on both sides of the two rotating molds. The output ends of the two first clamping driving mechanisms simultaneously squeeze both sides of the rectangular stirrup, and the rectangular stirrup is formed into the planar butterfly stirrup; the second direction is perpendicular to the first direction;

[0018] First displacement sensors, there are two of them. The two first displacement sensors are respectively arranged on the two first clamping driving mechanisms and are respectively used to set the output strokes of the two first clamping driving mechanisms;

[0019] First welding mechanism, the first welding mechanism is arranged on the fixed base, and the first welding mechanism is used to weld and fix the middle position of the planar butterfly stirrup formed by extrusion.

[0020] In some embodiments, both the first three-dimensional forming device and the second three-dimensional forming device include a mold assembly and a rotation driving assembly, and the rotation driving assembly is used to drive the mold assembly to rotate; the first three-dimensional forming device and the second three-dimensional forming device share a second welding mechanism, and the second welding mechanism is arranged on the fixed base, and the second welding mechanism is used to weld and fix the middle positions of the first three-dimensional butterfly ribs and the second three-dimensional butterfly ribs formed by extrusion molding;

[0021] The mold assembly includes:

[0022] A frame, the frame is rotatably arranged on the fixed base, and the rotation driving assembly is used to drive the frame to rotate around the fixed base;

[0023] Two molds are provided, and the two molds are fixedly arranged on the frame. The two molds are arranged at intervals along a first direction, and the two planar butterfly ribs are attached to the sides of the two molds along a second direction;

[0024] Two second clamping driving mechanisms are provided. The two second clamping driving mechanisms are fixed on the frame. The two second clamping driving mechanisms are arranged oppositely along the second direction on both sides of the two molds. The output ends of the two second clamping driving mechanisms squeeze the two planar butterfly ribs to form the first three-dimensional butterfly rib or the second three-dimensional butterfly rib; the middle position of the first three-dimensional butterfly rib deviates from the center line of the two molds along the first direction; the middle position of the second three-dimensional butterfly rib is located on the center line of the two molds along the first direction;

[0025] Two second displacement sensors are provided. The two second displacement sensors are respectively arranged on the two second clamping driving mechanisms and are respectively used to set the output strokes of the two second clamping driving mechanisms;

[0026] In some embodiments, the mold of the first three-dimensional forming device is a cambered surface mold. The two side surfaces of the cambered surface mold along the second direction are cambered surfaces, and the cambered surfaces of the two cambered surface molds are bent toward one side of the center line.

[0027] In some embodiments, the mold of the second three-dimensional forming device is a planar mold. The two side surfaces of the planar mold along the second direction are planar surfaces, and the two side surfaces are parallel to the center line.

[0028] In some embodiments, magnetic attracting members are arranged on the side surfaces of the molds, and the planar butterfly ribs are magnetically attracted and fixed on the molds.

[0029] In some embodiments, a top block and a guiding head are provided at the output end of the second clamping driving mechanism. The top block is used to press the middle position of the first three-dimensional butterfly rib or the second three-dimensional butterfly rib, and the guiding head can be inserted into the side surface of the mold to fix the planar butterfly rib.

[0030] In some embodiments, the rotation driving assembly includes:

[0031] A hinge seat fixed on the fixed base;

[0032] A rotation driving mechanism, the bottom end of which is hinged to the hinge seat through a first hinge shaft, and a second hinge shaft is provided at the output end of the rotation driving mechanism;

[0033] A swing arm, the first end of which is connected to the second hinge shaft, and the second end of which is connected to a rotating shaft;

[0034] A bearing seat provided on the fixed base, the rotating shaft is passed through the bearing seat, and the end of the rotating shaft away from the swing arm is connected to the frame.

[0035] In some embodiments, the non-powered conveying device includes:

[0036] A conveying bracket, the first end of which faces the second three-dimensional forming device, the second end of which extends along the first direction, and the height of the first end of the conveying bracket is higher than that of the second end;

[0037] Support rollers, a plurality of which are provided, and the plurality of support rollers are spaced on the conveying bracket. The first three-dimensional butterfly ribs and the second three-dimensional butterfly ribs are supported on the support rollers and can slide along the first end of the conveying bracket towards the second end under the action of gravity.

[0038] The beneficial effects of the present utility model:

[0039] The three-dimensional butterfly rib forming equipment provided by the present utility model realizes the sequential processing and forming from rectangular stirrups to two kinds of three-dimensional butterfly ribs through a feeding device, a plane forming device, a first three-dimensional forming device, a second three-dimensional forming device and a non-powered conveying device arranged in sequence along the first direction. The first three-dimensional butterfly ribs and the second three-dimensional butterfly ribs alternately placed on the non-powered conveying device are more convenient for assembling the two kinds of three-dimensional butterfly ribs onto the lattice arch in sequence, improving the forming efficiency of the lattice arch; the plane forming device in the present utility model can form plane symmetric butterfly ribs and plane arc-shaped butterfly ribs, and one device is used to form at least different forms of plane butterfly ribs, with high forming efficiency and small space occupied by the device; in the present utility model, the first three-dimensional forming device and the second three-dimensional forming device are respectively used to form the first three-dimensional butterfly ribs and the second three-dimensional butterfly ribs, which can realize the simultaneous operation of the two devices, greatly improving the forming efficiency and realizing the diversification of the forming mode, and meeting the forming requirements of various modes of three-dimensional butterfly ribs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic diagram of the overall structure of the three-dimensional butterfly rib forming equipment provided by an embodiment of the present utility model;

[0041] Figure 2 is a schematic diagram of the structure of the plane forming device in the three-dimensional butterfly rib forming equipment provided by an embodiment of the present utility model;

[0042] Figure 3 is a schematic diagram of the structure of the first three-dimensional forming device in the three-dimensional butterfly rib forming equipment provided by an embodiment of the present utility model;

[0043] Figure 4 is Figure 3 an enlarged schematic diagram of area A therein;

[0044] Figure 5 is a schematic diagram of the structure of the plane mold in the three-dimensional butterfly rib forming equipment provided by an embodiment of the present utility model;

[0045] Figure 6 is a schematic diagram of the structure of the arc surface mold in the three-dimensional butterfly rib forming equipment provided by an embodiment of the present utility model;

[0046] Figure 7 is a schematic diagram of the structure of the plane symmetric butterfly rib prepared by the three-dimensional butterfly rib forming equipment provided by an embodiment of the present utility model;

[0047] Figure 8 is a schematic diagram of the structure of the plane arc-shaped butterfly rib prepared by the three-dimensional butterfly rib forming equipment provided by an embodiment of the present utility model;

[0048] Figure 9It is a schematic diagram of the application of the first three-dimensional butterfly rib and the second three-dimensional butterfly rib on the grid arch in the three-dimensional butterfly rib forming device provided by the embodiment of the present utility model.

[0049] In the figure:

[0050] 10, rectangular stirrup; 20, planar symmetric butterfly rib; 30, planar arc-shaped butterfly rib; 40, first three-dimensional butterfly rib; 50, second three-dimensional butterfly rib;

[0051] 100, feeding device; 101, vertical conveyor belt; 102, partition; 103, horizontal slide rail;

[0052] 200, planar forming device; 201, rotating mold; 2011, guide post; 202, first clamping drive mechanism; 203, first displacement sensor; 204, first welding mechanism; 205, ejecting drive mechanism; 2051, ejecting shaft; 206, machine base; 207, first slide bar; 208, sliding seat; 209, clamping top plate;

[0053] 300, first three-dimensional forming device; 301, frame; 302, arc-shaped mold; 303, second clamping drive mechanism; 304, second displacement sensor; 305, magnetic attracting part; 306, top block; 3061, limiting groove; 307, guiding head; 308, second slide bar; 309, mounting seat; 310, supporting plate; 311, positioning hole; 312, guide rod; 313, elastic part; 314, adjusting bolt; 315, hinge seat; 316, rotating drive mechanism; 317, swing arm; 318, bearing seat; 319, first hinge shaft; 320, second hinge shaft; 321, rotating shaft;

[0054] 400, second three-dimensional forming device; 401, planar mold;

[0055] 500, non-powered conveying device; 501, conveying support; 502, supporting roller;

[0056] 600, manipulator; 601, walking cross beam; 602, supporting longitudinal beam; 603, vertical guide rail; 604, rotating support; 605, clamping jaw;

[0057] 700, fixed base;

[0058] 800, second welding mechanism. Detailed implementation manners

[0059] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of convenience of description, only some parts related to the present utility model are shown in the drawings, rather than all the structures.

[0060] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0061] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above and to the right", and "above and to the left" of the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and to the right", and "below and to the left" of the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0062] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0063] The present utility model first provides a three-dimensional butterfly rib forming device, such as Figures 1-9 , the three-dimensional butterfly rib forming device is used to form a rectangular stirrup 10 into a planar butterfly rib, and then form the planar butterfly rib into a three-dimensional butterfly rib. Among them, the planar butterfly rib includes a planar symmetric butterfly rib 20 and a planar arc-shaped butterfly rib 30. Two planar symmetric butterfly ribs 20 are formed into a first three-dimensional butterfly rib 40, and two planar arc-shaped butterfly ribs 30 are formed into a second three-dimensional butterfly rib 50. The first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50 are alternately welded and fixed between four steel bars of the grid arch to achieve the functions of support, fixation, and reinforcement.

[0064] The three-dimensional butterfly rib forming equipment provided by the utility model comprises a feeding device 100, a planar forming device 200, a first three-dimensional forming device 300, a second three-dimensional forming device 400, a non-powered conveying device 500 and a manipulator 600. The feeding device 100 is used to provide rectangular stirrups 10. The planar forming device 200 is used to perform planar extrusion forming and welding fixation on the rectangular stirrups 10 to obtain planar butterfly ribs, and the planar butterfly ribs include planar symmetric butterfly ribs 20 and planar arc-shaped butterfly ribs 30. The first three-dimensional forming device 300 is used to perform vertical extrusion forming and welding fixation on two planar symmetric butterfly ribs 20 to obtain a first three-dimensional butterfly rib 40. The second three-dimensional forming device 400 is used to perform vertical extrusion forming and welding fixation on two planar arc-shaped butterfly ribs 30 to obtain a second three-dimensional butterfly rib 50. The non-powered conveying device 500 is used to store and convey the first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50. The feeding device 100, the planar forming device 200, the first three-dimensional forming device 300, the second three-dimensional forming device 400 and the non-powered conveying device 500 are arranged in sequence along a first direction. The manipulator 600 can walk along the first direction and respectively grab and place the rectangular stirrups 10, the planar symmetric butterfly ribs 20, the planar arc-shaped butterfly ribs 30, the first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50, and alternately place the first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50 on the non-powered conveying device 500.

[0065] The three-dimensional butterfly rib forming equipment provided by the utility model, as Figure 1 shown, the first direction is the X direction, the second direction is the Y direction, the XY plane is the horizontal plane, the third direction is the Z direction, and the Z direction is the vertical direction. The first direction, the second direction and the third direction are perpendicular to each other in pairs. In the embodiment of the utility model, through the feeding device 100, the planar forming device 200, the first three-dimensional forming device 300, the second three-dimensional forming device 400 and the non-powered conveying device 500 arranged in sequence along the first direction, the sequential forming from the rectangular stirrups 10 to the planar butterfly ribs and then to the three-dimensional butterfly ribs is realized. Through the first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50 alternately placed on the non-powered conveying device 500, it is more convenient to alternately assemble the two three-dimensional butterfly ribs onto the lattice arch, improving the forming efficiency of the lattice arch. The planar forming device 200 in the utility model can form planar symmetric butterfly ribs 20 and planar arc-shaped butterfly ribs 30. One device is used to form various planar butterfly ribs in different forms, with high forming efficiency and small space occupied by the device, saving equipment costs. In the utility model, the first three-dimensional forming device 300 and the second three-dimensional forming device 400 are respectively used to form the first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50, which can realize the simultaneous operation of the first three-dimensional forming device 300 and the second three-dimensional forming device 400, greatly improving the forming efficiency and realizing the diversification of the forming mode, meeting the forming requirements of various mode three-dimensional butterfly ribs.

[0066] It should be noted that in the embodiments of the present utility model, the planar forming device 200, the first three-dimensional forming device 300, and the second three-dimensional forming device 400 share a fixed base 700 or form an integrated fixed base 700, which is convenient for integrated installation and assembly, saves equipment space and is beneficial to the reciprocating movement operation of the manipulator 600. The first three-dimensional forming device 300 and the second three-dimensional forming device 400 share a second welding mechanism 800. The second welding mechanism 800 is an automatic welding robot, and the second welding mechanism 800 is arranged at the middle position between the first three-dimensional forming device 300 and the second three-dimensional forming device 400, which is convenient for alternately welding the three-dimensional butterfly ribs.

[0067] In some embodiments, the feeding device 100 includes two vertical conveyor belts 101 arranged at intervals along the first direction. Partition plates 102 are provided at corresponding positions on the two vertical conveyor belts 101. The rectangular stirrups 10 are placed on the partition plates 102, and the vertical conveyor belts 101 can sequentially convey the rectangular stirrups 10 below upward. As Figure 1 shown, the vertical conveyor belts 101 can be in a chain drive mode. The vertical conveyor belts 101 are driven from bottom to top. Partition plates 102 are provided on the opposite surfaces of the two vertical conveyor belts 101. A plurality of partition plates 102 are arranged at equal intervals in the vertical direction (Z direction). The rectangular stirrups 10 are placed on the lower partition plates 102 of the vertical conveyor belts 101 manually or mechanically. The vertical conveyor belts 101 sequentially convey the rectangular stirrups 10 below upward, so that the manipulator 600 can grab the rectangular stirrups 10. By providing the feeding device 100, it can be ensured that each rectangular stirrup 10 has a definite shape for the grabbing action of the manipulator 600; and it can be ensured that the feeding device 100 always has sufficient rectangular stirrups 10 to meet the feeding efficiency requirements. In some embodiments, the partition plates 102 can be made of angle steel. One side of the angle steel is fixed on the vertical conveyor belt 101, and the other side is in a horizontal supporting state.

[0068] In some embodiments, at least one vertical conveyor belt 101 is slidably arranged on the horizontal slide rail 103 to adjust the distance between the two vertical conveyor belts 101. The horizontal slide rail 103 extends along the first direction.

[0069] As Figure 1 shown, the horizontal slide rail 103 is arranged along the first direction, so that at least one vertical conveyor belt 101 can move as a whole along the first direction by a distance, thereby adjusting the distance between the two vertical conveyor belts 101, so that the two vertical conveyor belts 101 can be adjusted according to the size of the rectangular stirrups 10, greatly improving the adaptability and flexibility.

[0070] In some embodiments, the planar forming device 200 is disposed on the fixed base 700, and includes a rotating die 201, a first clamping driving mechanism 202, a first displacement sensor 203, and a first welding mechanism 204. Among them, there are two rotating dies 201, and the two rotating dies 201 are rotatably disposed on the fixed base 700. The two rotating dies 201 are spaced apart along the first direction, and the rectangular stirrup 10 is sleeved on the two rotating dies 201; there are two first clamping driving mechanisms 202, and the two first clamping driving mechanisms 202 are fixed on the fixed base 700. The two first clamping driving mechanisms 202 are relatively disposed on both sides of the two rotating dies 201 along the second direction, and the output ends of the two first clamping driving mechanisms 202 simultaneously squeeze both sides of the rectangular stirrup 10, and the rectangular stirrup 10 is formed into a planar butterfly stirrup; there are two first displacement sensors 203, and the two first displacement sensors 203 are respectively disposed on the two first clamping driving mechanisms 202, and are respectively used to set the output strokes of the two first clamping driving mechanisms 202; the first welding mechanism 204 is disposed on the fixed base 700, and the first welding mechanism 204 is used to weld and fix the middle position of the extruded planar butterfly stirrup.

[0071] As Figure 2 shown, the planar forming device 200 provided by the embodiment of the present invention realizes the planar extrusion forming of the rectangular stirrup 10 by setting the rotating die 201 and the first clamping driving mechanism 202 on the fixed base 700, and realizes the automatic welding and fixing of the formed planar butterfly stirrup by setting the first welding mechanism 204. The automation degree is high, the time is saved, the forming efficiency of the planar butterfly stirrup is high, and the consistency is good.

[0072] It should be further noted that the planar forming device 200 of the present utility model further includes an ejection assembly disposed on the fixed base 700, which realizes ejecting the formed planar butterfly ribs out of the rotating die 201, reducing the labor intensity of workers, achieving the automatic one-piece forming of the rectangular stirrups 10 into planar butterfly ribs, and the ejected planar butterfly ribs are conducive to being directly grabbed and transferred by the manipulator 600. In the embodiment of the present utility model, the rectangular stirrups 10 are prepared in advance, and the two rotating dies 201 sleeved with the rectangular stirrups 10 are provided. The shapes of the two rotating dies 201 are arranged to match the shape of the planar butterfly ribs. Then, the forming of the planar butterfly ribs can be realized by the clamping movement of the first clamping driving mechanism 202 towards the rectangular stirrups 10. The movement mode of the first clamping driving mechanism 202 is simple, easy to control, and can improve the forming efficiency and quality, and the consistency of the batch-formed planar butterfly ribs is good. It should be noted that the first welding mechanism 204 is hinged or movably connected to the fixed base 700, which can realize the welding fixation of the middle position of the planar butterfly ribs and the avoidance of the non-welding state. The specific connection form and welding structure can both adopt the common automatic welding robots in the prior art, and this embodiment will not be elaborated and limited. In this embodiment, the first welding mechanism 204 is slidably connected to the fixed base 700 along the second direction to realize the switching between the welding position and the avoidance position.

[0073] In some embodiments, the structures of the two first clamping drive mechanisms 202 are the same, and they are arranged oppositely along the second direction with respect to the two rotating molds 201, preferably symmetrically arranged, so as to obtain a plane-symmetric butterfly rib 20 with a symmetric structure when the stroke difference between the two first clamping drive mechanisms 202 is zero, and to obtain a multi-mode plane arc-shaped butterfly rib 30 under the condition of gradually increasing the stroke difference, which is simpler to adjust and control. The first clamping drive mechanism 202 is fixed on the machine base 206, and the machine base 206 is fixedly arranged on the fixed base 700. A first slide bar 207 is provided between the two machine bases 206 of the two first clamping drive mechanisms 202 to fixedly connect the two machine bases 206; the output end of the first clamping drive mechanism 202 is fixedly connected with a sliding seat 208 and a clamping top plate 209. The sliding seat 208 is slidably connected to the first slide bar 207, and the first clamping drive mechanism 202 can drive the sliding seat 208 to slide along the first slide bar 207 to ensure good guiding performance; the clamping top plate 209 is arranged on the sliding seat 208. When the two sliding seats 208 approach each other, the two clamping top plates 209 can contact and squeeze the rectangular stirrup 10 to form a plane butterfly rib. It should be noted that the front end face of the clamping top plate 209 is used to contact and press the rectangular stirrup 10. Therefore, the shape of the front end face of the clamping top plate 209 is adapted to the shape of the plane butterfly rib. In order to facilitate the limitation of the rectangular stirrup 10 during the clamping process, a step surface is provided at the end of the clamping top plate 209, and the rectangular stirrup 10 can be limited within the step surface. The height (dimension along the third direction) of the step surface matches the outer diameter dimension of the steel bar of the rectangular stirrup 10. The step surface can limit the rectangular stirrup 10 between the surface of the clamping top plate 209 and the fixed base 700, so that the rectangular stirrup 10 only deforms in the XY plane after being squeezed, avoiding the protrusion in the Z direction from affecting the forming shape.

[0074] The first displacement sensor 203 includes a fixed part and a movable part. Among the fixed part and the movable part, one is connected to the sliding seat 208 and the other is connected to the machine base 206. According to the finished product size requirements of the plane butterfly rib, the first displacement sensor 203 is appropriately adjusted to set the initial output stroke difference between the two first clamping drive mechanisms 202, so that under the condition of this initial output stroke difference, the rectangular stirrup 10 is extruded into a plane-symmetric butterfly rib 20, and under the condition of subsequent increasing output stroke difference, it is formed into a plane arc-shaped butterfly rib 30. Of course, in some other embodiments, for the stroke setting and control of the first clamping drive mechanism 202, it is not limited to using the first displacement sensor 203, and a controller or the like can also be used for control and adjustment settings.

[0075] In some embodiments, a through hole is provided on the rotating mold 201 along the third direction, and a guide column 2011 passes through the through hole and fixes the rotating mold 201 to the fixed base 700. Specifically, the guide column 2011 can be a bolt, and after the bolt passes through the rotating mold 201 and the fixed base 700 from top to bottom, the bolt is locked by a nut, and by setting the locking degree of the nut and the bolt, the pre-tightening force between the rotating mold 201 and the fixed base 700 can be relatively adjusted, so that the rotating mold 201 can be completely fixedly connected with the fixed base 700 or rotatably connected relative to the fixed base 700, so that the rectangular stirrup 10 on the rotating mold 201 can rotate a certain angle with the clamping top plate 209 when subjected to the thrust of the clamping top plate 209, so as to form a multi-mode planar arc-shaped butterfly rib 30 with multi-size curved shapes.

[0076] In some embodiments, a spacer is provided between the guide post 2011 and the through hole, and the spacer is sleeved on the guide post 2011 and movably connected to the guide post 2011, so that the rotating mold 201 can rotate around the guide post 2011, reducing friction resistance.

[0077] In some embodiments, the ejection assembly includes an ejection drive mechanism 205 and an ejector shaft 2051. The ejection drive mechanism 205 is disposed on the fixed base 700 below the rotating mold 201. The ejector shaft 2051 is disposed above the fixed base 700 and below the planar butterfly rib between the two rotating molds 201. The output end of the ejection drive mechanism 205 passes through the fixed base 700 and is connected to the ejector shaft 2051 to drive the ejector shaft 2051 to move upward to eject the planar butterfly rib, so that the manipulator 600 can grasp the planar butterfly rib. It can be understood that the width of the ejector shaft 2051 along the second direction is at least greater than the sum of the diameters of the two steel bars at the middle position of the planar butterfly rib, so that the ejector shaft 2051 can support the middle position of the planar butterfly rib to make it rise and leave the rotating mold 201.

[0078] In some embodiments, the first clamping drive mechanism 202 is a cylinder, and the ejection drive mechanism 205 is a cylinder. According to the strength and rigidity of the planar butterfly rib, a cylinder or a linear motor may also be used as a replacement.

[0079] In some embodiments, the first three-dimensional forming device 300 and the second three-dimensional forming device 400 both include a mold assembly and a rotation drive assembly, and the rotation drive assembly is used to drive the mold assembly to rotate; the first three-dimensional forming device 300 and the second three-dimensional forming device 400 share a second welding mechanism 800, and the second welding mechanism 800 is arranged on a fixed base 700, and specifically can adopt a hinged or rotational connection method, etc. The second welding mechanism 800 is used to weld and fix the middle position of the extruded first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50.

[0080] It should be noted that in this embodiment, the differences between the first three-dimensional forming device 300 and the second three-dimensional forming device 400 include different positions and different molds used. The first three-dimensional forming device 300 uses a curved surface mold 302, and the second three-dimensional forming device 400 uses a flat mold 401. The other structures are the same. The following will take the first three-dimensional forming device 300 as an example for detailed description.

[0081] The first three-dimensional forming device 300 includes a mold assembly and a rotation driving assembly. Among them, the mold assembly includes a frame 301, a curved surface mold 302, a second clamping driving mechanism 303, and a second displacement sensor 304. The frame 301 is rotatably arranged on the fixed base 700, and the rotation driving assembly is used to drive the frame 301 to rotate around the fixed base 700; there are two curved surface molds 302, and the two curved surface molds 302 are fixedly arranged on the frame 301. The two curved surface molds 302 are arranged at intervals along the first direction, and two flat butterfly ribs are attached to the sides of the two curved surface molds 302 along the second direction; there are two second clamping driving mechanisms 303, and the two second clamping driving mechanisms 303 are fixed on the frame 301. The two second clamping driving mechanisms 303 are arranged opposite to each other along the second direction on both sides of the two curved surface molds 302. The output ends of the two second clamping driving mechanisms 303 squeeze the two flat butterfly ribs to form the first three-dimensional butterfly rib 40. When the mold is the flat mold 401, the second three-dimensional butterfly rib 50 is formed; the middle position of the first three-dimensional butterfly rib 40 deviates from the center line of the two curved surface molds 302 along the first direction; the middle position of the second three-dimensional butterfly rib 50 is located on the center line of the two curved surface molds 302 along the first direction; there are two second displacement sensors 304, and the two second displacement sensors 304 are respectively arranged on the two second clamping driving mechanisms 303 and are respectively used to set the output strokes of the two second clamping driving mechanisms 303.

[0082] In the first three-dimensional forming device 300, the mold used is the curved surface mold 302. The two side surfaces of the curved surface mold 302 along the second direction are curved surfaces, and the curved surfaces of the two curved surface molds 302 are bent toward the side of the center line. As Figure 6As shown in the figure, the relative top ends of the two arc-shaped molds 302 are bent towards the same side to form two arc surfaces. The center line connecting the relative distal ends of the two arc-shaped molds 302 serves as the center line of the mold. The arc-shaped mold 302 has a curved side surface, facilitating the asymmetric extrusion molding of the two planar symmetric butterfly ribs 20 provided on the two side surfaces into the first three-dimensional butterfly rib 40. Asymmetric extrusion molding means that the middle position of the first three-dimensional butterfly rib 40 deviates from the center line of the two molds along the first direction, so that the first three-dimensional butterfly rib 40 has a curved arc surface, which is beneficial to having a relatively stable weld structure when welded and fixed to the grid arch. In the second three-dimensional forming device 400, the mold is a planar mold 401. The two side surfaces of the planar mold 401 along the second direction are planar, and the two side surfaces are parallel to the center line, facilitating the symmetric extrusion molding of the two planar arc-shaped butterfly ribs 30 provided on the two side surfaces into the second three-dimensional butterfly rib 50.

[0083] In some embodiments, magnetic attraction members 305 are provided on the side surfaces of the molds (including the arc-shaped mold 302 and the planar mold 401), and the planar butterfly ribs are magnetically attracted and fixed to the molds.

[0084] In some embodiments, a top block 306 and a guiding head 307 are provided at the output end of the second clamping driving mechanism 303. The top block 306 is used to press the middle position of the first three-dimensional butterfly rib 40 or the second three-dimensional butterfly rib 50, and the guiding head 307 can be inserted into the side surface of the mold to fix the planar butterfly rib.

[0085] As Figure 3 shown in the figure, in the first three-dimensional forming device 300, two second sliding rods 308 are provided between the two frames 301. The two second sliding rods 308 are spaced along the first direction (X direction) on both sides of the frame 301 and fixedly connect the two frames 301. The output end of the rotation driving assembly is connected to the two second sliding rods 308, so that the rotation driving mechanism 316 can rotate or flip the entire mold assembly through the second sliding rods 308, enabling the second welding mechanism 800 to weld and fix the two sides of the middle position of the three-dimensional butterfly rib respectively.

[0086] Again, as Figure 3, the output end of the second clamping drive mechanism 303 is fixedly provided with a mounting seat 309, and the mounting seat 309 is slidably connected to two second sliding rods 308 to ensure the sliding direction and sliding stability. Preferably, a linear bearing can be provided between the mounting seat 309 and the second sliding rod 308 for linear sliding connection to improve the guiding accuracy in the sliding direction and reduce sliding friction. Among them, the second displacement sensor 304 includes a fixed part and a movable part. Among the fixed part and the movable part, one is connected to the frame 301, and the other is connected to the mounting seat 309. The second displacement sensor 304 is communicatively connected to the second clamping drive mechanism 303 for setting and adjusting the output stroke of the two second clamping drive mechanisms 303, so that the output end of the second clamping drive mechanism 303 can drive the mounting seat 309 to move a specified stroke to obtain a three-dimensional butterfly rib with a specified shape.

[0087] In some embodiments, both the top block 306 and the guiding head 307 are provided on the mounting seat 309 and face the two arc-shaped molds 302. The two ends of the planar butterfly rib are respectively attached to and fixed on the sides of the two arc-shaped molds 302. Positioning holes 311 are respectively provided on both sides of the arc-shaped mold 302. The guiding head 307 can pass through the planar butterfly rib and then be inserted into the positioning holes 311, and the top block 306 presses the middle position of the two planar butterfly ribs to form.

[0088] As Figure 3 and Figure 4 shown, the vertical surface of the planar butterfly rib is arranged along the Z direction, the butterfly holes at both ends of the planar butterfly rib are arranged along the first direction, and both planar butterfly ribs are abutted against the sides in the thickness direction of the third direction (Z direction) of the two molds. In this embodiment, magnetic attraction members 305 (such as magnets) are provided on both sides of the mold, and the planar butterfly ribs are magnetically attracted to both sides of the mold for easy installation and disassembly; a support plate 310 is provided at the bottom of the mold, and the planar butterfly rib is supported on the support plate 310. It should be added that the support plate 310 needs to be provided with avoidance holes so that the second welding mechanism 800 can perform welding operations on the middle position of the three-dimensional butterfly rib through the avoidance holes on the support plate 310. There is a gap between the two molds to facilitate the contact of the middle positions of the two planar butterfly ribs at the gap to form the middle position of the three-dimensional butterfly rib and facilitate subsequent welding operations. The positioning holes 311 of the two molds are long strip-shaped holes, and the long axis of the long strip-shaped hole extends along the first direction. When the guiding head 307 has a displacement along the first direction or the size of the planar butterfly rib changes, the guiding head 307 can be inserted into different positions in the positioning holes 311 to limit the planar butterfly rib and prevent it from deforming due to displacement during extrusion molding and affecting the shape of the three-dimensional butterfly rib. Both molds are fixed on the frame 301 through two second sliding rods 308. The output end of the rotation drive assembly is fixedly connected to the second sliding rod 308 at the mold to facilitate rotating the three-dimensional butterfly rib with the smallest space.

[0089] In some embodiments, the guide head 307 is located on both sides of the top block 306 along the first direction, and the distance between the guide head 307 and the top block 306 is adjustable. Figure 4 A guide rod 312 is provided on both sides of the top block 306 along the first direction, and the guide head 307 is inserted into the guide rod 312. An elastic member 313 (such as a spring) is sleeved on the guide rod 312. The two ends of the elastic member 313 are respectively stopped at the top block 306 and the guide head 307. An adjusting bolt 314 is provided on the side of the guide head 307 away from the top block 306. The adjusting bolt 314 is threadedly connected to the mounting seat 309 and abuts against the guide head 307, thereby realizing elastic installation and adjustable spacing between the guide head 307 and the top block 306.

[0090] In some embodiments, a slide groove is provided on the mounting seat 309, the long axis of the slide groove is arranged along the first direction, and the guide head 307 is slidably connected in the slide groove. The slide groove is arranged as a T-shaped groove, and a slider with a T-shaped cross section is arranged at the root of the guide head 307. The slider at the root of the guide head 307 is slidably connected in the slide groove, which can ensure that the guide head 307 is always attached to and fixed on the mounting seat 309, and the position of the guide head 307 along the first direction is limited, and the guide rod 312 can be assisted in guiding. Two guide heads 307 are arranged on both sides of each top block 306, and the two guide heads 307 are inserted on the guide rod 312 through the base. The two guide heads 307 are arranged in sequence along the third direction to meet the width requirements of the butterfly hole of the flat butterfly rib, and avoid the butterfly hole becoming smaller due to extrusion deformation, which affects the overall appearance size.

[0091] In some embodiments, the rotation drive assembly includes an articulated seat 315, a rotation drive mechanism 316, a swing arm 317 and a bearing seat 318, and the articulated seat 315 and the bearing seat 318 are both fixed on the fixed base 700; the bearing seat 318 is arranged at a high position relative to the articulated seat 315, and a rotation shaft 321 is passed through the bearing seat 318. The bottom end of the rotation drive mechanism 316 is hinged to the articulated seat 315 through a first hinge shaft 319, and a second hinge shaft 320 is provided at the output end of the rotation drive mechanism 316; the first end of the swing arm 317 is connected to the second hinge shaft 320, the second end of the swing arm 317 is connected to one end of the rotation shaft 321, and the other end of the rotation shaft 321 away from the swing arm 317 is connected to the frame 301.

[0092] like Figure 3, when the output end of the rotation driving mechanism 316 makes a telescopic movement, since the bearing seat 318 is fixed on the fixed base 700 and the relative positions of the hinge seat 315 and the bearing seat 318 are fixed, the rotation driving mechanism 316 realizes the rotation driving of the mold assembly through the swing arm 317. Among them, the swing arm 317 is arc-shaped, so as to facilitate the rotation driving control of the mold assembly by the rotation driving mechanism 316 within a smaller stroke. Preferably, there are two bearing seats 318, and the rotating shafts 321 on the two bearing seats 318 are coaxial and are respectively connected to the two second sliding rods 308. One end of one of the rotating shafts 321 away from the second sliding rod 308 is connected to the swing arm 317. When the output end of the rotation driving mechanism 316 makes a telescopic movement, the mold assembly can rotate with the rotating shaft 321. It can be understood that the structure of the fixed base 700 should be set to avoid the rotation space of the mold assembly.

[0093] In the above embodiment, shaft holes are provided at both ends of the swing arm 317. One end of the second hinge shaft 320 is fixed to the output end of the rotation driving mechanism 316, and the other end passes through the shaft hole and is fixedly connected through a bolt-nut assembly, realizing the fixed connection between the output end of the rotation driving mechanism 316 and the swing arm 317. A spacer sleeve is provided between the output end of the rotation driving mechanism 316 and the swing arm 317 for isolation, and the spacer sleeve is sleeved on the second hinge shaft 320. The end of the rotating shaft 321 away from the second sliding rod 308 passes through the bearing seat 318 and the shaft hole at the other end of the swing arm 317 in sequence and is fixed by a connecting bolt and a gland. In the above embodiment, the second clamping driving mechanism 303 and the rotation driving mechanism 316 can respectively adopt an oil cylinder, or an air cylinder, or a linear motor, etc. It should be noted that the rotation driving assembly can also adopt a motor with a rotation output to directly connect to the second sliding rod 308 or the frame 301 to realize rotation driving. Supplementary description is that in some embodiments, such as Figure 4 , in order to increase the stability of the contact surface between the top block 306 and the planar butterfly rib, a limiting groove 3061 matching the outer diameter size of the two steel bars of the planar butterfly rib is provided on the force-applying surface of the top block 306. When the top block 306 contacts the middle position of the planar butterfly rib, the steel bar at the middle position can be limited in the limiting groove 3061 so as to form extrusion molding in a determined direction, and the width of the limiting groove 3061 in the third direction is equal to twice the outer diameter of the steel bars of the two planar butterfly ribs.

[0094] In some embodiments, the unpowered conveying device 500 includes a conveying support 501 and supporting rollers 502. The first end of the conveying support 501 faces the second three-dimensional forming device 400. The second end of the conveying support 501 extends along the first direction. The height of the first end of the conveying support 501 is higher than that of the second end. A plurality of supporting rollers 502 are provided and spaced on the conveying support 501. A plurality of first three-dimensional butterfly ribs 40 and second three-dimensional butterfly ribs 50 are supported on the supporting rollers 502 and can slide along the conveying support 501 from the first end to the second end under the action of gravity.

[0095] As Figure 1 shown, the manipulator 600 includes a traveling cross beam 601, a supporting longitudinal beam 602, a vertical guide rail 603, a rotating bracket 604 and a jaw 605. The traveling cross beam 601 extends along the first direction, facilitating the manipulator 600 to travel between the feeding device 100, the planar forming device 200, the first three-dimensional forming device 300, the second three-dimensional forming device 400 and the unpowered conveying device 500 to perform grasping and placing actions. A supporting longitudinal beam 602 is movably provided on the traveling cross beam 601. The supporting longitudinal beam 602 extends along the second direction and can reciprocally move along the first direction on the traveling cross beam 601. A vertical guide rail 603 is provided on the supporting longitudinal beam 602. The supporting longitudinal beam 602 extends along the second direction. The vertical guide rail 603 can reciprocally move along the second direction on the supporting longitudinal beam 602. The rotating bracket 604 is provided on the vertical guide rail 603 and can move up and down along the vertical guide rail 603. The rotating bracket 604 is provided with a jaw 605 for grasping or placing rectangular stirrups 10, planar butterfly ribs and three-dimensional butterfly ribs.

[0096] Applying the three-dimensional butterfly rib forming equipment provided by the present utility model, the three-dimensional butterfly rib forming method includes the following steps:

[0097] S1. Place the rectangular stirrup 10 on the planar forming device 200. The planar forming device 200 extrudes and welds the rectangular stirrup 10 to obtain a planar butterfly rib. If the planar butterfly rib is a planar symmetric butterfly rib 20, then grasp and place the planar butterfly rib on the first three-dimensional forming device 300. If the planar butterfly rib is a planar arc-shaped butterfly rib 30, then grasp and place the planar butterfly rib on the second three-dimensional forming device 400.

[0098] S2. Repeat step S1 once. When there are two planar butterfly ribs on the first three-dimensional forming device 300, the first three-dimensional forming device 300 extrudes and welds the two planar butterfly ribs to obtain a first three-dimensional butterfly rib 40.

[0099] When there are two planar butterfly ribs on the second three-dimensional forming device 400, the second three-dimensional forming device 400 extrudes and welds the two planar butterfly ribs to obtain the second three-dimensional butterfly rib 50;

[0100] S3, alternately place the first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50 on the unpowered conveying device 500.

[0101] For the above three-dimensional butterfly rib forming method, first form the rectangular stirrup 10 into a planar butterfly rib, and then form the planar butterfly rib into a three-dimensional butterfly rib. The first three-dimensional forming device 300 and the second three-dimensional forming device 400 can respectively obtain the first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50, and then obtain the support state of the lattice arch as shown in Figure 9 The first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50 are alternately welded inside the lattice arch. The first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50 alternately placed on the unpowered conveying device 500 are beneficial to improving the forming efficiency and product quality of the lattice arch. Through continuous feeding by the feeding device 100, the automatic forming of the rectangular stirrup 10 into a three-dimensional butterfly rib is realized, greatly reducing the labor intensity of workers and improving the forming efficiency.

[0102] In some embodiments, the forming method of the planar forming device 200 is as follows:

[0103] Set and adjust the output ends of the two first clamping driving mechanisms 202 to have a first output stroke difference. The output ends of the two first clamping driving mechanisms 202 move relatively towards the rectangular stirrup 10 at the same time and squeeze the rectangular stirrup 10. If the middle position of the planar butterfly rib is on the center line of the rectangular stirrup 10 along the first direction, then the planar butterfly rib is a planar symmetric butterfly rib 20; increasing the first output stroke difference causes the middle positions of the two planar butterfly ribs to deviate from the center line of the rectangular stirrup 10, and the planar butterfly rib is a planar arc-shaped butterfly rib 30.

[0104] Combined with Figure 2, specifically, the feeding device 100 conveys the rectangular stirrup 10 to the top, the manipulator 600 automatically picks up the rectangular stirrup 10 and places the rectangular stirrup 10 on two rotating molds 201 of the planar forming device 200. Two first clamping driving mechanisms 202 squeeze the rectangular stirrup 10 to form it into a planar butterfly stirrup, and are fixed by welding through the first welding mechanism 204. When the two first clamping driving mechanisms 202 are symmetrically arranged on both sides of the rotating mold 201, the first output stroke difference (initial output stroke difference) is zero, and the rectangular stirrup 10 is squeezed into a planar symmetric butterfly stirrup 20, and the rotating mold 201 does not rotate; on this basis, increasing the first output stroke difference to make it non-zero, the rectangular stirrup 10 is squeezed into a planar arc-shaped butterfly stirrup 30 while the rotating mold 201 rotates by a certain angle. As the first output stroke difference increases, the bending radian of the planar arc-shaped butterfly stirrup 30 increases. Furthermore, by setting the first output stroke difference of the output ends of the two first clamping driving mechanisms 202 through the first displacement sensor 203, the bending radian of the planar arc-shaped butterfly stirrup 30 can be adjusted to meet the radian requirements of the lattice arch. It can be understood that when the two first clamping driving mechanisms 202 are asymmetrically installed relative to the two rotating molds 201, the first output stroke difference when the rectangular stirrup 10 is squeezed into a planar symmetric butterfly stirrup 20 can be used as the initial output stroke difference through initial positioning or calibration. Finally, the planar butterfly stirrup is ejected from the rotating mold 201 by the ejection assembly, and the manipulator 600 grabs and places it on the first three-dimensional forming device 300 or the second three-dimensional forming device 400.

[0105] In some embodiments, the forming method of the first three-dimensional forming device 300 is as follows:

[0106] Set and adjust the second output stroke difference of the output ends of the two second clamping driving mechanisms 303. The output ends of the two second clamping driving mechanisms 303 move relatively towards the two planar symmetric butterfly stirrups 20 at the same time and squeeze the two planar symmetric butterfly stirrups 20 to bend and form along the arc surfaces of the two arc surface molds 302, obtaining the first three-dimensional butterfly stirrup 40. The middle position of the first three-dimensional butterfly stirrup 40 deviates from the center line of the two arc surface molds 302 along the second direction.

[0107] Combined with Figure 1 and Figure 3, the first three-dimensional forming device 300 uses an arc-shaped mold 302 to extrude two planar symmetric butterfly ribs 20 into the first three-dimensional butterfly rib 40. First, the two planar symmetric butterfly ribs 20 are respectively magnetically adsorbed and fixed and attached to the two arc surfaces of the two arc-shaped molds 302 by the manipulator 600. According to the center line position of the two arc-shaped molds 302, it is calibrated or determined that the second output stroke difference of the output ends of the two second clamping driving mechanisms 303 is zero. The second displacement sensor 304 is used to set the second output stroke difference of the output ends of the two second clamping driving mechanisms 303 to be non-zero. The two second clamping driving mechanisms 303 extrude the two planar symmetric butterfly ribs 20 and form them into the first three-dimensional butterfly rib 40. The middle position of the first three-dimensional butterfly rib 40 deviates from the center line; the second welding mechanism 800 welds one side of the middle position of the first three-dimensional butterfly rib 40; the rotation driving assembly drives the mold assembly to rotate a certain angle, as Figure 1 shown, the second welding mechanism 800 welds and fixes the other side of the middle position of the first three-dimensional butterfly rib 40; after welding, the manipulator 600 grabs the three-dimensional butterfly rib and places it on the non-powered conveying device 500.

[0108] In some embodiments, the forming method of the second three-dimensional forming device 400 is as follows:

[0109] Set and adjust the third output stroke difference of the output ends of the two second clamping driving mechanisms 303. The output ends of the two second clamping driving mechanisms 303 move relatively towards the two planar arc-shaped butterfly ribs 30 at the same time and extrude the two planar arc-shaped butterfly ribs 30 to bend symmetrically, obtaining the second three-dimensional butterfly rib 50. The middle position of the second three-dimensional butterfly rib 50 is located on the center line of the two planar molds 401 along the second direction.

[0110] Combined with Figure 1 , the second three-dimensional forming device 400 uses a planar mold 401 to extrude two planar arc-shaped butterfly ribs 30 into the second three-dimensional butterfly rib 50. First, the two planar arc-shaped butterfly ribs 30 are respectively magnetically adsorbed and fixed and attached to the two side surfaces of the two planar molds 401 by the manipulator 600. According to the center line position of the two planar molds 401, it is calibrated or determined that the third output stroke difference of the output ends of the two second clamping driving mechanisms 303 is zero. The two second clamping driving mechanisms 303 extrude the two planar arc-shaped butterfly ribs 30 and form them into the second three-dimensional butterfly rib 50. The middle position of the second three-dimensional butterfly rib 50 is located on the center line of the two planar molds 401 in the first direction; the second welding mechanism 800 welds one side of the middle position of the second three-dimensional butterfly rib 50; the rotation driving assembly drives the mold assembly to rotate a certain angle, and the second welding mechanism 800 welds and fixes the other side of the middle position of the second three-dimensional butterfly rib 50; after welding, the manipulator 600 grabs the three-dimensional butterfly rib and places it on the non-powered conveying device 500.

[0111] To facilitate the alternating placement of the first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50 on the unpowered conveying device 500, a manipulator 600 can be set to alternately grasp the first three-dimensional butterfly rib 40 on the first three-dimensional forming device 300 and the second three-dimensional butterfly rib 50 on the second three-dimensional forming device 400, and place them at the first end of the conveying support 501 of the unpowered conveying device 500. The first three-dimensional butterfly rib 40 and the second three-dimensional butterfly rib 50 freely slide to the second end under the action of gravity, having a regular pattern of alternating placement.

[0112] The forming equipment for the three-dimensional butterfly rib provided by the present utility model has the advantages of high automation degree, time saving, and can reduce the labor intensity of workers, and greatly reduce the processing cost.

[0113] Obviously, the above-mentioned embodiments of the present utility model are only examples for clearly explaining the present utility model, and are not intended to limit the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. Three-dimensional butterfly rib forming equipment, characterized in that: include: A feeding device (100) for providing rectangular stirrups (10); A plane forming device (200) is used to perform plane extrusion forming and welding fixation on the rectangular stirrup (10) to obtain a plane butterfly reinforcement, wherein the plane butterfly reinforcement includes a plane symmetrical butterfly reinforcement (20) and a plane arc-shaped butterfly reinforcement (30); A first three-dimensional forming device (300) is used to perform vertical extrusion forming and welding fixation on the two plane-symmetrical butterfly ribs (20) to obtain a first three-dimensional butterfly rib (40); A second three-dimensional forming device (400) is used to perform vertical extrusion forming and welding fixation on the two planar arc-shaped butterfly ribs (30) to obtain a second three-dimensional butterfly rib (50); A non-powered conveying device (500) for storing and conveying the first three-dimensional butterfly rib (40) and the second three-dimensional butterfly rib (50); A robot (600), the feeding device (100), the plane forming device (200), the first three-dimensional forming device (300), the second three-dimensional forming device (400) and the non-powered conveying device (500) are arranged in sequence along a first direction, and the robot (600) can move along the first direction and respectively grasp and place the rectangular stirrups (10), the plane symmetrical butterfly reinforcement (20), the plane arc-shaped butterfly reinforcement (30), the first three-dimensional butterfly reinforcement (40) and the second three-dimensional butterfly reinforcement (50), and alternately place the first three-dimensional butterfly reinforcement (40) and the second three-dimensional butterfly reinforcement (50) on the non-powered conveying device (500).

2. The three-dimensional butterfly rib forming equipment according to claim 1, characterized in that: The loading device (100) comprises two vertical conveyor belts (101) arranged at intervals along a first direction, and partitions (102) are arranged on the two vertical conveyor belts (101). The rectangular stirrups (10) are placed on the partitions (102), and the vertical conveyor belts (101) can sequentially convey the rectangular stirrups (10) below upwards.

3. The three-dimensional butterfly rib forming equipment according to claim 2, characterized in that: At least one of the vertical conveyor belts (101) is slidably arranged on a horizontal slide rail (103) to adjust the distance between the two vertical conveyor belts (101), and the horizontal slide rail (103) is extended along the first direction.

4. The three-dimensional butterfly rib forming equipment according to claim 1, characterized in that: The plane shaping device (200) is arranged on a fixed base (700), and the plane shaping device (200) comprises: There are two rotating molds (201), the two rotating molds (201) are rotatably arranged on the fixed base (700), the two rotating molds (201) are spaced apart along the first direction, and the rectangular stirrups (10) are sleeved on the two rotating molds (201); The first clamping drive mechanism (202) is provided with two, the two first clamping drive mechanisms (202) are fixed on the fixed base (700), the two first clamping drive mechanisms (202) are arranged relatively on both sides of the two rotating molds (201) along the second direction, the output ends of the two first clamping drive mechanisms (202) squeeze both sides of the rectangular stirrup (10) at the same time, and the rectangular stirrup (10) is formed into the planar butterfly rib; the second direction is perpendicular to the first direction; Two first displacement sensors (203) are provided, and the two first displacement sensors (203) are respectively provided on the two first clamping drive mechanisms (202) and are respectively used to set the output strokes of the two first clamping drive mechanisms (202); A first welding mechanism (204), wherein the first welding mechanism (204) is disposed on the fixed base (700), and the first welding mechanism (204) is used to weld and fix the middle position of the extruded planar butterfly rib.

5. The three-dimensional butterfly rib forming equipment according to claim 4, characterized in that: The first three-dimensional forming device (300) and the second three-dimensional forming device (400) both comprise a mold assembly and a rotation drive assembly, wherein the rotation drive assembly is used to drive the mold assembly to rotate; the first three-dimensional forming device (300) and the second three-dimensional forming device (400) share a second welding mechanism (800), wherein the second welding mechanism (800) is arranged on the fixed base (700), and the second welding mechanism (800) is used to weld and fix the middle position of the first three-dimensional butterfly rib (40) and the second three-dimensional butterfly rib (50) formed by extrusion; The mold assembly comprises: A frame (301), the frame (301) being rotatably mounted on the fixed base (700), and the rotation drive assembly being used for driving the frame (301) to rotate around the fixed base (700); The molds are provided with two, the two molds are fixedly arranged on the frame (301), the two molds are spaced apart along a first direction, and the two planar butterfly ribs are attached to the sides of the two molds along a second direction; The second clamping drive mechanism (303) is provided with two, the two second clamping drive mechanisms (303) are fixed on the frame (301), the two second clamping drive mechanisms (303) are arranged on both sides of the two molds along the second direction, and the output ends of the two second clamping drive mechanisms (303) squeeze the two planar butterfly ribs to form the first three-dimensional butterfly ribs (40) or the second three-dimensional butterfly ribs (50); the middle position of the first three-dimensional butterfly ribs (40) deviates from the center line of the two molds along the first direction; the middle position of the second three-dimensional butterfly ribs (50) is located on the center line of the two molds along the first direction; Two second displacement sensors (304) are provided. The two second displacement sensors (304) are respectively provided on the two second clamping drive mechanisms (303) and are respectively used to set the output strokes of the two second clamping drive mechanisms (303).

6. The three-dimensional butterfly rib forming equipment according to claim 5, characterized in that: The mold of the first three-dimensional forming device (300) is a curved mold (302), and the two side surfaces of the curved mold (302) along the second direction are curved surfaces, and the curved surfaces of the two curved molds (302) are bent toward one side of the center line.

7. The three-dimensional butterfly rib forming equipment according to claim 5, characterized in that: The mold of the second three-dimensional forming device (400) is a planar mold (401), and two side surfaces of the planar mold (401) along the second direction are planes, and the two side surfaces are parallel to the center line.

8. The three-dimensional butterfly rib forming equipment according to claim 5, characterized in that: A magnetic attraction piece (305) is provided on the side of the mold, and the planar butterfly rib is fixed on the mold by magnetic attraction.

9. The three-dimensional butterfly rib forming equipment according to claim 5, characterized in that: The output end of the second clamping drive mechanism (303) is provided with a top block (306) and a guide head (307), wherein the top block (306) is used to crimp the middle position of the first three-dimensional butterfly rib (40) or the second three-dimensional butterfly rib (50), and the guide head (307) can be inserted into the side of the mold to fix the planar butterfly rib.

10. The three-dimensional butterfly rib forming equipment according to claim 5, characterized in that: The rotary drive assembly comprises: An articulated seat (315), wherein the articulated seat (315) is fixed on the fixed base (700); A rotation drive mechanism (316), wherein the bottom end of the rotation drive mechanism (316) is hinged to the hinge seat (315) via a first hinge shaft (319), and a second hinge shaft (320) is provided at the output end of the rotation drive mechanism (316); A swing arm (317), wherein a first end of the swing arm (317) is connected to the second hinge shaft (320), and a second end of the swing arm (317) is connected to a rotating shaft (321); A bearing seat (318), wherein the bearing seat (318) is disposed on the fixed base (700), the rotating shaft (321) is passed through the bearing seat (318), and the end of the rotating shaft (321) away from the swing arm (317) is connected to the frame (301).

11. The three-dimensional butterfly rib forming equipment according to claim 1, characterized in that: The unpowered conveying device (500) comprises: a conveying bracket (501), wherein a first end of the conveying bracket (501) is arranged toward the second three-dimensional forming device (400), a second end of the conveying bracket (501) is extended along the first direction, and a height of the first end of the conveying bracket (501) is higher than a height of the second end; A supporting roller (502), wherein a plurality of the supporting rollers (502) are provided, and the plurality of the supporting rollers (502) are arranged at intervals on the conveying bracket (501); a plurality of the first three-dimensional butterfly ribs (40) and the second three-dimensional butterfly ribs (50) are supported on the supporting rollers (502) and can slide along the first end toward the second end of the conveying bracket (501) under the action of gravity.

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