A horizontal conveyor type multi-station closed stirrup butt welding machine

Abstract

The present invention discloses a horizontal conveyor one-driving-multiple closed stirrup butt welder, which relates to the technical field of stirrup welding. It includes a stirrup conveying system, a stirrup collecting cart, a control system, multiple stirrup placing components and multiple welding modules. The stirrup conveying system includes a frame body, a feeding mechanism and a stirrup positioning plate. The multiple stirrup placing components are sequentially fixed on the feeding mechanism. The welding module includes a frame, a support frame, an upper adjustable expanding mechanism, an expanding and pressing-down air cylinder, a upsetting and pushing air cylinder, a lower driving air cylinder and two electrode components. The electrode component includes an upper pressing head, a lower trough-shaped electrode, a connecting frame, a support block and a stirrup pressing-down air cylinder. The feeding mechanism, the lower trough-shaped electrode, the expanding and pressing-down air cylinder, the upsetting and pushing air cylinder, the lower driving air cylinder and the stirrup pressing-down air cylinder are all connected to the control system. The horizontal conveyor one-driving-multiple closed stirrup butt welder provided by the present invention has a fast conveying speed and simple operation, greatly simplifies the action process and improves the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of stirrup welding, in particular to a horizontal transmission one-to-many closed stirrup butt welding machine. Background Art

[0002] During the construction of cast-in-place or prefabricated buildings, a large number of stirrups are used. Compared with the traditional stirrup installation, welded closed ring stirrups can improve the quality of the project, optimize the structural force, save steel, improve work efficiency, and avoid the disadvantages of the traditional stirrup installation. Existing closed stirrups are generally welded by manual welding or manipulators. The manual welding method has high labor intensity, low efficiency, poor working environment and high labor risk factor. The manipulator welding method involves complex material collection and unloading actions and corresponding claw mechanisms, and the stirrups are transmitted in a vertical hanging manner, with a complex action process and low work efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a horizontal transmission one-to-multiple closed stirrup welding machine, which has fast transmission speed and simple operation, greatly simplifies the action process and improves work efficiency.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a horizontal transmission one-to-many closed stirrup butt welding machine, comprising a stirrup transmission system, a stirrup collecting vehicle, a control system, a plurality of stirrup placing components and a plurality of welding modules, the stirrup transmission system comprising a frame, a material transmission mechanism and a stirrup positioning plate, the material transmission mechanism and the stirrup positioning plate are both installed on the frame, the stirrup positioning plate is arranged on one side of the front part of the frame, a plurality of welding modules are arranged in sequence on one side of the rear part of the frame, and the stirrup collecting vehicle is arranged below the tail end of the material transmission mechanism; a plurality of stirrup placing components are fixed on the material transmission mechanism in sequence, the stirrup placing component comprises a bottom plate, an adjustable stirrup placing table and a stirrup supporting component, the adjustable stirrup placing table and the stirrup supporting component are respectively arranged on both sides of the upper part of the bottom plate; the welding module comprises a frame, a support frame, an upper adjustable opening mechanism, an opening downward pressure cylinder, an upsetting propulsion cylinder, a lower driving cylinder and two electrode assemblies, the electrode assembly comprises an upper pressure head, a lower slot-shaped electrode, a connecting frame, a support block and a stirrup The stirrup pressing cylinder, the lower groove electrode and the connecting frame are both arranged on the supporting block, the stirrup pressing cylinder is installed on the top of the connecting frame, the lower end of the stirrup pressing cylinder is connected with the upper pressing head, the upper pressing head corresponds to the position of the lower groove electrode, the lower driving cylinder is fixed on the frame, the supporting frame is fixed to the upper end of the lower driving cylinder, the upsetting propulsion cylinder is fixed on the supporting frame, and the upsetting propulsion cylinder is connected to the supporting block of one of the electrode assemblies. Then, the support block of the other electrode assembly is fixed on the support frame and is located on the side away from the upset thrust cylinder, the spreading and pressing cylinder is fixed on the top side of the connecting frame of the electrode assembly away from the upset thrust cylinder, the lower end of the spreading and pressing cylinder is connected to the upper adjustable spreading mechanism, the feeding mechanism, the lower groove electrode, the spreading and pressing cylinder, the upset thrust cylinder, the lower driving cylinder and the stirrup pressing cylinder are all connected to the control system.

[0006] Preferably, a stirrup front support tube is provided on one side of the upper portion of the frame, and the stirrup front support tube is located on the inner side of the stirrup positioning plate.

[0007] Preferably, the material transmission mechanism includes a transmission chain, a driving sprocket, a driven sprocket, a chain transmission box, a power motor and a reducer. The driving sprocket and the driven sprocket are rotatably installed at the front end and the rear end of the upper part of the frame respectively. The transmission chain is installed on the driving sprocket and the driven sprocket. The base plate of the stirrup placement assembly is fixed on the transmission chain. The chain transmission box is arranged at the front end of the lower part of the frame. The power motor and the reducer are both arranged in the chain transmission box. The power motor is connected to the reducer. The reducer is used to drive the driving sprocket to move. The power motor is connected to the control system.

[0008] Preferably, the welding module also includes a top forging slide rail, which is fixed on the support frame, and a top forging slider is installed on the top forging slide rail. The support block of one of the electrode assemblies is fixed on the top forging slider, and the top forging thrust cylinder is connected to the top forging slider.

[0009] Preferably, the welding module also includes two guide assemblies, which include a guide rail and two guide sliders slidably mounted on the guide rails, two vertically arranged guide rails are arranged on the frame, and the guide slider is fixed to one side of the support frame.

[0010] Preferably, the welding module also includes a welding transformer and four cylinder solenoid valves, the lower slot electrode is connected to the welding transformer, the expansion and downward pressure cylinder, the top forging propulsion cylinder, the lower drive cylinder and the stirrup downward pressure cylinder are respectively connected to the four cylinder solenoid valves, and the welding transformer and the cylinder solenoid valves are both connected to the control system.

[0011] Preferably, the adjustable stirrup placement table includes a first shell, a first linear rail, a first positive and negative threaded screw, a first left-handed nut, a first right-handed nut, a first width adjustment knob, two first supports and two first moving assemblies, the first shell is fixed to the base plate, the two first supports are respectively fixed to the two ends inside the first shell, the two ends of the first positive and negative threaded screw are respectively installed in the two first supports through first sleeves, one end of the first positive and negative threaded screw is arranged outside the first shell and connected to the first width adjustment knob, and a first locking bolt is arranged on the side of the first sleeve away from one end of the first width adjustment knob; the first linear rail is fixed in the first shell, the first linear rail and the first positive and negative threaded screw are parallel to each other, the first left-handed nut and the first right-handed nut are both installed on the first positive and negative threaded screw, the first moving assembly includes a first adjusting slider and two first V-shaped blocks fixed on the first adjusting slider, the two first adjusting sliders are both slidably installed on the first linear rail, and the first left-handed nut and the first right-handed nut are respectively connected to the two first adjusting sliders.

[0012] Preferably, the stirrup support assembly includes a middle support block, a tail support block, a stirrup middle support tube and a stirrup tail support tube, the middle support block and the tail support block are sequentially arranged on the base plate, the stirrup middle support tube is arranged on the middle support block, and the stirrup tail support tube is arranged on the tail support block.

[0013] Preferably, the upper adjustable spreading mechanism includes a second shell, a second linear rail, a second positive and negative threaded screw, a second left-hand nut, a second right-hand nut, a second width adjustment knob, two second supports and two second moving assemblies, the second shell is fixed to the base plate, the two second supports are respectively fixed to the two ends inside the second shell, the two ends of the second positive and negative threaded screw are respectively installed in the two second supports through second sleeves, one end of the second positive and negative threaded screw is arranged outside the second shell and connected to the second width adjustment knob, and a second locking bolt is arranged on the side of the second sleeve away from one end of the second width adjustment knob; the second linear rail is fixed in the second shell, the second linear rail and the second positive and negative threaded screw are parallel to each other, the second left-hand nut and the second right-hand nut are both installed on the second positive and negative threaded screw, the second moving assembly includes a second adjusting slider and a second V-shaped block fixed on the second adjusting slider, the two second adjusting sliders are both slidably installed on the second linear rail, and the second left-hand nut and the second right-hand nut are respectively connected to the two second adjusting sliders.

[0014] Compared with the prior art, the present invention has achieved the following technical effects:

[0015] The horizontal transmission one-to-many closed stirrup butt welding machine provided by the present invention comprises a stirrup transmission system, a stirrup collecting vehicle, a control system, a plurality of stirrup placing components and a plurality of welding modules. When working, the stirrups to be welded are placed on an adjustable stirrup placing table and a stirrup supporting component, and the width of the adjustable stirrup placing table is adjusted to match the stirrups to be welded, the stirrups to be welded are moved so as to contact with the stirrup positioning plate to achieve positioning, the stirrups to be welded are transmitted to the corresponding welding module through the material conveying mechanism, so that the stirrups to be welded are placed in the lower slot-shaped electrode, the expansion and pressing cylinder drives the upper adjustable expansion mechanism to press down to expand and preliminarily align the stirrup joint, the stirrup pressing cylinder drives the upper pressure head to press down to press the steel bars at the stirrup joint into the lower slot-shaped electrode to achieve precise centering, the lower slot-shaped electrode is energized, and the flash butt welding of the stirrup joint is completed under the push of the top forging propulsion cylinder. After welding is completed, the welding module releases the welded stirrups, and the welded stirrups are transmitted to the end of the frame through the material transmission mechanism. The stirrup placement assembly automatically flips over, and the welded stirrups fall into the stirrup collection vehicle due to gravity. In the present invention, the stirrup transmission is changed from vertical suspension to horizontal transmission, with fast transmission speed and simple operation. After the stirrups are horizontally transmitted to the right place, they are directly opened, centered and welded. The welded stirrups are horizontally transmitted to the unloading position, and automatic unloading is achieved by gravity, which greatly simplifies the action process, improves work efficiency, and simplifies the overall device structure and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of a horizontal transmission one-to-multiple closed stirrup butt welding machine provided by the present invention;

[0018] Figure 2 A structural schematic diagram of a stirrup conveying system in a horizontal conveying one-to-many closed stirrup butt welding machine provided by the present invention;

[0019] Figure 3 A schematic structural diagram of a welding module in a horizontal transmission one-to-multiple closed stirrup butt welding machine provided by the present invention;

[0020] Figure 4 A schematic structural diagram of a stirrup placement assembly in a horizontal transmission one-to-many closed stirrup butt welding machine provided by the present invention;

[0021] Figure 5 A schematic structural diagram of an adjustable stirrup placement table in a horizontal transmission one-to-many closed stirrup butt welding machine provided by the present invention;

[0022] Figure 6 A schematic structural diagram of the upper and middle adjustable spreading mechanism of the horizontal transmission one-to-many closed stirrup butt welding machine provided by the present invention.

[0023] Explanation of the reference numerals: 1. frame; 2. chain transmission box; 3. stirrup collection vehicle; 4. stirrup positioning plate; 5. stirrup front support tube; 6. stirrup placement assembly; 61. bottom plate; 62. adjustable stirrup placement table; 621. first shell; 622. first linear rail; 623. first adjustment slider; 624. first V-shaped block; 625. first positive and negative threaded screw; 626. first width adjustment knob; 627. first left-hand nut; 628. first right-hand nut; 629. first support; 6210. first locking bolt; 63. middle support block; 64. tail support block; 65. stirrup middle support tube; 66. stirrup tail support tube; 7. welding module; 71. frame; 72. support frame; 73. lower drive cylinder; 74. support Block; 75, lower groove electrode; 76, upper pressure head; 77, connecting frame; 78, stirrup pressure cylinder; 79, upper adjustable expansion mechanism; 791, second shell; 792, second linear rail; 793, second adjustment slider; 794, second V-shaped block; 795, second positive and negative thread screw; 796, second width adjustment knob; 797, second left-hand nut; 798, second right-hand nut; 799, second support; 7910, second locking bolt; 710, expansion and pressure cylinder; 711, upsetting thrust cylinder; 712, upsetting slide rail; 713, welding transformer; 714, cylinder solenoid valve; 8, main control box; 9, human-machine interface; 10, power motor; 11, driving sprocket; 12, driven sprocket; 13, transmission chain. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The purpose of the present invention is to provide a horizontal transmission one-to-multiple closed stirrup butt welding machine, which has fast transmission speed, simple operation, greatly simplifies the action process and improves work efficiency.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1-Figure 4As shown, this embodiment provides a horizontal transmission one-to-many closed stirrup butt welding machine, including a stirrup transmission system, a stirrup collecting vehicle 3, a control system, multiple stirrup placement components 6 and multiple welding modules 7, the stirrup transmission system includes a frame 1, a material transmission mechanism and a stirrup positioning plate 4, the material transmission mechanism and the stirrup positioning plate 4 are both installed on the frame 1, the stirrup positioning plate 4 is arranged on one side of the front of the frame 1, and multiple welding modules 7 are sequentially arranged on one side of the rear of the frame 1, and the stirrup collecting vehicle 3 is arranged below the tail end of the material transmission mechanism; multiple stirrup placement components 6 and multiple welding modules 7 are arranged on the rear side of the frame 1. The components 6 are fixed on the material conveying mechanism in sequence. The stirrup placing component 6 includes a bottom plate 61, an adjustable stirrup placing platform 62 and a stirrup supporting component. The adjustable stirrup placing platform 62 and the stirrup supporting component are respectively arranged on both sides of the upper part of the bottom plate 61; the welding module 7 includes a frame 71, a support frame 72, an upper adjustable opening mechanism 79, an opening downward pressure cylinder 710, an upsetting pushing cylinder 711, a lower driving cylinder 73 and two electrode assemblies. The electrode assembly includes an upper pressure head 76, a lower groove electrode 75, a connecting frame 77, a support The support block 74 and the stirrup pressing cylinder 78, the lower groove electrode 75 and the connecting frame 77 are all arranged on the support block 74, the stirrup pressing cylinder 78 is installed on the top of the connecting frame 77, the lower end of the stirrup pressing cylinder 78 is connected to the upper pressure head 76, the upper pressure head 76 corresponds to the position of the lower groove electrode 75, the lower driving cylinder 73 is fixed on the frame 71, the support frame 72 is fixed to the upper end of the lower driving cylinder 73, the upsetting propulsion cylinder 711 is fixed on the support frame 72, and the upsetting propulsion cylinder 711 is connected to the support frame 72. The support block 74 is connected, the support block 74 of the other electrode assembly is fixed on the support frame 72 and is located on the side away from the upsetting propulsion cylinder 711, the opening and pressing cylinder 710 is fixed to the top side of the connecting frame 77 of the electrode assembly away from the upsetting propulsion cylinder 711, and the lower end of the opening and pressing cylinder 710 is connected with an upper adjustable opening mechanism 79, the material feeding mechanism, the lower groove electrode 75, the opening and pressing cylinder 710, the upsetting propulsion cylinder 711, the lower driving cylinder 73 and the stirrup pressing cylinder 78 are all connected to the control system.

[0028] A stirrup front support tube 5 is provided on one side of the upper portion of the frame body 1 . The stirrup front support tube 5 is located inside the stirrup positioning plate 4 . The stirrup front support tube 5 extends along the length direction of the frame body 1 .

[0029] like Figure 2As shown, the material transmission mechanism includes a transmission chain 13, a driving sprocket 11, a driven sprocket 12, a chain transmission box 2, a power motor 10 and a reducer. The driving sprocket 11 and the driven sprocket 12 are rotatably mounted on the front end and rear end of the upper part of the frame 1 respectively. Specifically, the driving sprocket 11 is rotatably mounted on the front end of the upper part of the frame 1 through a driving shaft, and the driven sprocket 12 is rotatably mounted on the rear end of the upper part of the frame 1 through a driven shaft. The driven sprocket 12 is located above the stirrup collecting vehicle 3, and the transmission chain 13 is mounted on the driving sprocket 1 1 and driven sprocket 12, the bottom plate 61 of the stirrup placement assembly 6 is fixed on the transmission chain 13, the chain transmission box 2 is arranged at the front end of the lower part of the frame 1, the power motor 10 and the reducer are both arranged in the chain transmission box 2, the power motor 10 is connected to the reducer, the reducer is used to drive the active sprocket 11 to move, specifically, a first sprocket is arranged on the output shaft of the reducer, a second sprocket is fixed on one side of the active shaft, a connecting chain is installed on the first sprocket and the second sprocket, and the power motor 10 is connected to the control system. When working, the control system controls the power motor 10 to start, and transmits power to the active shaft through the reducer, the first sprocket, the connecting chain and the second sprocket, and the active shaft drives the active sprocket 11, the transmission chain 13 and the driven sprocket 12 to rotate to realize the transmission of the stirrup placement assembly 6.

[0030] like Figure 3 As shown, the welding module 7 also includes a top forging slide rail 712, which is fixed on the support frame 72, and a top forging slider is installed on the top forging slide rail 712. A support block 74 of an electrode assembly is fixed on the top forging slider, and the top forging propulsion cylinder 711 is connected to the top forging slider, that is, one electrode assembly in this embodiment is fixed to the support frame 72, and the other electrode assembly can move in the horizontal direction relative to the support frame 72 through the action of the top forging propulsion cylinder 711.

[0031] The frame 71 in this embodiment is an L-shaped structure, the lower driving cylinder 73 is fixed on the horizontal frame of the frame 71, the support frame 72 is an L-shaped structure, and the upsetting propulsion cylinder 711, the upsetting slide rail 712 and the two electrode assemblies are all arranged on the horizontal plate of the support frame 72. In order to make the support frame 72 move more smoothly in the vertical direction, the welding module 7 also includes two guide assemblies, the guide assemblies include guide slide rails and two guide sliders slidably mounted on the guide slide rails, and the two vertically arranged guide slide rails are arranged on the frame 71, specifically, the guide slide rails are arranged on the vertical frame of the frame 71, and the guide slider is fixed to one side of the support frame 72, specifically, the guide slider is fixed to the vertical plate of the support frame 72.

[0032] The welding module 7 also includes a welding transformer 713 and four cylinder solenoid valves 714. The lower slot electrode 75 is connected to the welding transformer 713. The opening and pressing cylinder 710, the upsetting propulsion cylinder 711, the lower driving cylinder 73 and the stirrup pressing cylinder 78 are respectively connected to the four cylinder solenoid valves 714. The welding transformer 713 and the cylinder solenoid valves 714 are both connected to the control system. The control system realizes the power on and off of the lower slot electrode 75 through the welding transformer 713. The control system realizes the control of the four cylinders of the opening and pressing cylinder 710, the upsetting propulsion cylinder 711, the lower driving cylinder 73 and the stirrup pressing cylinder 78 through the four cylinder solenoid valves 714.

[0033] Specifically, the control system includes a main control box 8 and a human-machine interface 9 connected to the main control box 8 , and the power motor 10 , the welding transformer 713 and the four cylinder solenoid valves 714 are all connected to the main control box 8 .

[0034] In this specific embodiment, the upper pressure head 76 is a V-shaped pressure head, and the lower groove electrode 75 is a V-shaped groove electrode.

[0035] like Figure 5 As shown, the adjustable stirrup placement platform 62 includes a first shell 621, a first linear rail 622, a first forward and reverse threaded screw 625, a first left-handed nut 627, a first right-handed nut 628, a first width adjustment knob 626, two first supports 629 and two first moving assemblies. The first shell 621 is fixed on the bottom plate 61, and the two first supports 629 are respectively fixed at two ends inside the first shell 621. The two ends of the first forward and reverse threaded screw 625 are respectively installed in the two first supports 629 through first sleeves. One end of the first forward and reverse threaded screw 625 is arranged outside the first shell 621 and connected to the first width adjustment knob 626, away from the first width A first locking bolt 6210 is provided on one side of the first sleeve at one end of the degree adjustment knob 626; the first linear rail 622 is fixed in the first shell 621, the first linear rail 622 and the first forward and reverse threaded screw 625 are parallel to each other, the first left-handed nut 627 and the first right-handed nut 628 are both installed on the first forward and reverse threaded screw 625, the first moving assembly includes a first adjusting slider 623 and two first V-shaped blocks 624 fixed on the first adjusting slider 623, the two first adjusting sliders 623 are both slidably installed on the first linear rail 622, and the first left-handed nut 627 and the first right-handed nut 628 are respectively connected to the two first adjusting sliders 623.

[0036] When the distance between the two first moving components needs to be adjusted to accommodate stirrups of different widths, the first width adjustment knob 626 is rotated to rotate the first positive and negative threaded screw 625, and the first left-handed nut 627 and the first right-handed nut 628 on the first positive and negative threaded screw 625 drive the two first adjustment sliders 623 to move toward or away from each other, thereby adjusting the distance between the two groups of first V-shaped blocks 624 on the two first moving components to meet the requirement that stirrups of different widths can be just stuck into the bottom of the first V-shaped block 624. After adjusting the width, the first positive and negative threaded screw 625 and the first sleeve are limited by the first locking bolt 6210 screwed into the first sleeve to prevent the first positive and negative threaded screw 625 from rotating and achieve locking.

[0037] like Figure 4 As shown, the stirrup support assembly includes a middle support block 63, a rear support block 64, a stirrup middle support tube 65 and a stirrup rear support tube 66. The middle support block 63 and the rear support block 64 are sequentially arranged on the bottom plate 61, the stirrup middle support tube 65 is arranged on the middle support block 63, and the stirrup rear support tube 66 is arranged on the rear support block 64. The two long sides of the stirrup are respectively placed in two groups of first V-shaped blocks 624, the front end of the stirrup is supported by the stirrup front support tube 5 on the frame 1, the middle of the stirrup is supported by the stirrup middle support tube 65, and the rear end of the stirrup is supported by the stirrup rear support tube 66.

[0038] like Figure 6 As shown, the upper adjustable expansion mechanism 79 includes a second shell 791, a second linear rail 792, a second forward and reverse threaded screw 795, a second left-handed nut 797, a second right-handed nut 798, a second width adjustment knob 796, two second supports 799 and two second moving assemblies. The second shell 791 is fixed on the base plate 61, and the two second supports 799 are respectively fixed at the two ends inside the second shell 791. The two ends of the second forward and reverse threaded screw 795 are respectively installed in the two second supports 799 through second sleeves. One end of the second forward and reverse threaded screw 795 is arranged outside the second shell 791 and connected to the second width adjustment knob 796, away from the second moving assemblies. A second locking bolt 7910 is provided on one side of the second sleeve at one end of the second width adjustment knob 796; the second linear rail 792 is fixed in the second shell 791, the second linear rail 792 and the second forward and reverse screw 795 are parallel to each other, the second left-hand nut 797 and the second right-hand nut 798 are both installed on the second forward and reverse screw 795, the second moving assembly includes a second adjusting slider 793 and a second V-shaped block 794 fixed on the second adjusting slider 793, the two second adjusting sliders 793 are both slidably installed on the second linear rail 792, and the second left-hand nut 797 and the second right-hand nut 798 are respectively connected to the two second adjusting sliders 793.

[0039] When the distance between the two second moving assemblies needs to be adjusted to accommodate stirrups of different widths, the second width adjustment knob 796 is rotated to rotate the second forward and reverse threaded screw 795, and the second left-handed nut 797 and the second right-handed nut 798 on the second forward and reverse threaded screw 795 drive the two second adjustment sliders 793 to move toward or away from each other, thereby adjusting the distance between the two second V-shaped blocks 794 on the two second moving assemblies to meet the requirement that stirrups of different widths can just fit into the bottom of the second V-shaped block 794. Specifically, the width between the two second V-shaped blocks 794 is slightly larger than the width of the stirrups to prevent the joints of the stirrups from overlapping up and down. After adjusting the width, the second forward and reverse threaded screw 795 and the second sleeve are limited by the second locking bolt 7910 screwed into the second sleeve to prevent the second forward and reverse threaded screw 795 from rotating and achieve locking.

[0040] In this specific embodiment, four welding modules 7 are provided, so that the number of welding modules 7 corresponding to the material feeding mechanism is increased from two to four, thereby realizing the welding of four stirrups at the same time and improving the work efficiency.

[0041] During operation, the stirrups to be welded are placed on the adjustable stirrup placing platform 62 and the stirrup supporting assembly, and the width of the adjustable stirrup placing platform 62 is adjusted to match the stirrups to be welded. The two long sides of the stirrups are placed in the first V-shaped block 624, and the short sides with the welding interface are placed forward. The stirrups to be welded are moved so that their short sides with the welding interface are in contact with the stirrup positioning plate 4 to achieve positioning. The stirrups to be welded are transmitted to the corresponding welding module 7 through the material conveying mechanism, and the control system controls the material conveying mechanism to suspend welding. The lower driving cylinder 73 drives the support frame 72 and the two electrode assemblies of the support frame 72 to descend to prevent the stirrups from moving. The stirrups move to the position of the welding module 7 and stop. The lower driving cylinder 73 drives the support frame 72 and the two electrode assemblies of the support frame 72 to rise and return to their positions, and the stirrups to be welded are placed in the lower groove electrode 75. The opening and pressing cylinder 710 drives the upper adjustable opening mechanism 79 to press down the two long sides of the stirrups, open and preliminarily align the stirrup joints to prevent the joints from overlapping up and down. The stirrup pressing cylinder 78 drives the upper pressure head 76 to press down the steel bars at the stirrup joint into the lower groove electrode 75 to achieve precise alignment. The lower groove electrode 75 is energized, and the flash butt welding of the stirrup joints is completed under the push of the top forging push cylinder 711. After welding is completed, the welding module 7 releases the welded stirrups. Specifically, the top forging propulsion cylinder 711 drives the electrode assembly connected to it to retreat, the opening and pressing cylinder 710 drives the upper adjustable opening mechanism 79 to move upward, the stirrup pressing cylinder 78 drives the upper pressure head 76 to move upward, and the lower driving cylinder 73 drives the support frame 72 and the two electrode assemblies of the support frame 72 to descend. The welded stirrups are transmitted to the end of the frame 1 through the material conveying mechanism, the stirrup placing assembly 6 automatically flips over, and the welded stirrups fall into the stirrup collecting vehicle 3 due to gravity.

[0042] It can be seen that in this embodiment, the transportation of stirrups is changed from vertical suspension to horizontal transportation, with fast transportation speed and simple operation; a series of complex material picking, unloading actions and corresponding claw mechanisms are eliminated, and after the stirrups are horizontally transported to the right place, they are directly opened, centered and welded. The welding speed of a single welding module 7 is increased from the original 3 / min to more than 6 / min, an increase of more than 100%; the welded stirrups are horizontally transported to the unloading position, and automatic unloading is achieved by gravity, which greatly simplifies the action process, improves work efficiency, and simplifies the overall device structure and reduces the cost.

[0043] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A horizontal conveyor one - to - many closed stirrup butt welder, Characterized in that, It includes a stirrup conveying system, a stirrup collecting vehicle, a control system, a plurality of stirrup placing components and a plurality of welding modules. The stirrup conveying system includes a frame body, a feeding mechanism and a stirrup positioning plate. The feeding mechanism and the stirrup positioning plate are both installed on the frame body. The stirrup positioning plate is arranged on one side of the front part of the frame body. The plurality of welding modules are sequentially arranged on one side of the rear part of the frame body. The stirrup collecting vehicle is arranged below the tail end of the feeding mechanism; the plurality of stirrup placing components are sequentially fixed on the feeding mechanism. The stirrup placing component includes a bottom plate, an adjustable stirrup placing table and a stirrup supporting component. The adjustable stirrup placing table and the stirrup supporting component are respectively arranged on both sides of the upper part of the bottom plate; the welding module includes a frame, a support frame, an upper adjustable expanding mechanism, an expanding and pressing cylinder, a upsetting and pushing cylinder, a lower driving cylinder and two electrode components. The electrode component includes an upper pressure head, a lower grooved electrode, a connecting frame, a support block and a stirrup pressing cylinder. The lower grooved electrode and the connecting frame are both arranged on the support block. The stirrup pressing cylinder is installed on the top of the connecting frame. The lower end of the stirrup pressing cylinder is connected with the upper pressure head. The upper pressure head corresponds to the position of the lower grooved electrode. The lower driving cylinder is fixed on the frame. The support frame is fixed on the upper end of the lower driving cylinder. The upsetting and pushing cylinder is fixed on the support frame. The upsetting and pushing cylinder is connected with the support block of one of the electrode components. The support block of the other electrode component is fixed on the support frame and is located on the side far from the upsetting and pushing cylinder. The expanding and pressing cylinder is fixed on one side of the top of the connecting frame of the electrode component far from the upsetting and pushing cylinder. The lower end of the expanding and pressing cylinder is connected with the upper adjustable expanding mechanism. The feeding mechanism, the lower grooved electrode, the expanding and pressing cylinder, the upsetting and pushing cylinder, the lower driving cylinder and the stirrup pressing cylinder are all connected with the control system; on one side of the upper part of the frame body, there is a stirrup front support pipe, and the stirrup front support pipe is located inside the stirrup positioning plate; the adjustable stirrup placing table includes a first shell, a first linear guide rail, a first left and right thread lead screw, a first left-handed nut, a first right-handed nut, a first width adjusting knob, two first supports and two first moving components. The first shell is fixed on the bottom plate. The two first supports are respectively fixed at both ends inside the first shell. The two ends of the first left and right thread lead screw are respectively installed in the two first supports through first shaft sleeves. One end of the first left and right thread lead screw is arranged outside the first shell and is connected with the first width adjusting knob. One side of the first shaft sleeve at the end far from the first width adjusting knob is provided with a first locking bolt;The first linear guide is fixed in the first housing. The first linear guide is parallel to the first left - right threaded lead screw. The first left - hand nut and the first right - hand nut are both mounted on the first left - right threaded lead screw. The first moving assembly includes a first adjusting slider and two first V - shaped blocks fixed on the first adjusting slider. Both of the first adjusting sliders are slidably mounted on the first linear guide. The first left - hand nut and the first right - hand nut are respectively connected to the two first adjusting sliders.

2. The horizontal conveyor one - to - many closed stirrup butt welder according to claim 1, Characterized in that, The feeding mechanism includes a transmission chain, a driving sprocket, a driven sprocket, a chain transmission box, a power motor and a speed reducer. The driving sprocket and the driven sprocket are respectively rotatably installed at the front end and the rear end of the upper part of the frame body. The transmission chain is installed on the driving sprocket and the driven sprocket. The bottom plate of the stirrup placing assembly is fixed on the transmission chain. The chain transmission box is arranged at the front end of the lower part of the frame body. The power motor and the speed reducer are both arranged in the chain transmission box. The power motor is connected with the speed reducer. The speed reducer is used to drive the driving sprocket to move. The power motor is connected with the control system.

3. The horizontal conveyor one - to - many closed stirrup butt welder according to claim 1, Characterized in that, The welding module further includes a upsetting slide rail. The upsetting slide rail is fixed on the support frame. An upsetting slider is installed on the upsetting slide rail. The support block of one of the electrode assemblies is fixed on the upsetting slider. The upsetting push cylinder is connected with the upsetting slider.

4. The horizontal conveyor one - to - many closed stirrup butt welder according to claim 1, Characterized in that, The welding module further includes two guiding assemblies. The guiding assembly includes a guiding slide rail and two guiding sliders slidably installed on the guiding slide rail. Two vertically arranged guiding slide rails are arranged on the frame. The guiding sliders are fixed on one side of the support frame.

5. The horizontal conveyor one - to - many closed stirrup butt welder according to claim 1, Characterized in that, The welding module further includes a welding transformer and four cylinder solenoid valves. The lower trough - shaped electrode is connected with the welding transformer. The spreading and pressing cylinder, the upsetting push cylinder, the lower driving cylinder and the stirrup pressing cylinder are respectively connected with the four cylinder solenoid valves. The welding transformer and the cylinder solenoid valves are both connected with the control system.

6. The horizontal conveyor one - to - many closed stirrup butt welder according to claim 1, Characterized in that, The stirrup support assembly includes a middle support block, a tail support block, a stirrup middle support pipe and a stirrup tail support pipe. The middle support block and the tail support block are sequentially arranged on the bottom plate. The stirrup middle support pipe is arranged on the middle support block. The stirrup tail support pipe is arranged on the tail support block.

7. The horizontal conveyor one - to - many closed stirrup butt welder according to claim 1, Characterized in that, The upper adjustable expansion mechanism includes a second housing, a second wire rail, a second left-right threaded lead screw, a second left-handed nut, a second right-handed nut, a second width adjustment knob, two second supports, and two second moving components. The second housing is fixed to the bottom plate, and the two second supports are respectively fixed to both ends inside the second housing. Both ends of the second left-right threaded lead screw are respectively installed in the two second supports through second bushings. One end of the second left-right threaded lead screw is arranged outside the second housing and connected to the second width adjustment knob. A second locking bolt is arranged on one side of the second bushing at the end far from the second width adjustment knob. The second wire rail is fixed in the second housing. The second wire rail is parallel to the second left-right threaded lead screw. Both the second left-handed nut and the second right-handed nut are installed on the second left-right threaded lead screw. The second moving component includes a second adjustment slider and a second V-shaped block fixed to the second adjustment slider. Both of the second adjustment sliders are slidably installed on the second wire rail. The second left-handed nut and the second right-handed nut are respectively connected to the two second adjustment sliders.

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