A steel cage rolling welding machine

Abstract

The present invention relates to the technical field of welding, and in particular to a steel cage roll welding machine, which includes a main rib guide plate and a welding head assembled on a roll welding machine body, a rotating ring is installed on the front side of the main rib guide plate, and a guide rod is installed on the front side of the rotating ring; a mounting seat is connected to the front side of the rotating ring, and a moving rod is slidably connected to the front side of the mounting seat, a tension spring 1 is provided between the mounting seat and the moving rod, a sliding rod is connected to the front end of the moving rod, and a sliding groove is provided on the sliding rod, the sliding groove is composed of a groove 1 and a groove 2, the groove 1 extends along the circumference of the steel cage, the top end of the groove 2 is connected to the bottom end of the groove 1, the groove 2 is tilted to the left from top to bottom, and one end of the welding head is slidably inserted into the sliding groove. The present invention can enable the welding head to be quickly positioned at the node, improve the positioning efficiency, extend the contact time between the welding head and the node, make the welding more firm, and the device can run continuously, reducing the occurrence of serious wear of the device due to frequent shutdown and startup.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a steel cage rolling welding machine. Background Art

[0002] The steel cage is a mesh structure formed by welding multiple steel bars according to design requirements. It is often used in large concrete structures such as bridges, high-rise buildings and docks. The main bars of the steel cage are arranged along the axis of the steel cage and are usually evenly distributed. The spiral bars of the steel cage are arranged in a spiral shape around the main bars. The spiral bars are used to fix the position of the main bars and provide shear resistance. When welding the steel cage, the main welding point is the intersection of the main bars and the spiral bars, that is, the node of the steel cage.

[0003] The steel bars are welded in the rolling welder by a rotating welding device. Referring to the Chinese patent document with the announcement number CN212496076U and the announcement date of February 9, 2021, the name is an automatic welding device for steel cage, which includes an adjustment bracket, a main connecting seat, an axial positioning mechanism, a circumferential positioning mechanism and a welding gun. The adjustment bracket is used to adjust the welding position of the welding gun along the height direction and adapt to the position change of the main connecting seat along the center line direction of the steel cage; the axial positioning mechanism is used to position the welding position of the welding gun along the center line direction of the steel cage; the circumferential positioning mechanism is used to position the welding position of the welding gun along the circumference of the steel cage; the welding gun is used to weld the intersection of the surrounding reinforcement and the main reinforcement of the steel cage.

[0004] With regard to the above-mentioned related technologies, during the welding process, the positioning efficiency of the welding head directly affects the production speed. The above-mentioned device adjusts the position of the welding head through multiple positioning mechanisms, and the positioning efficiency is low, which affects the overall production efficiency. In addition, the above-mentioned device has the problem of frequent startup and shutdown of the mechanism. Frequent startup and shutdown of the device will cause additional wear on the device and shorten the service life of the equipment. If the device adopts continuous operation, there will be a problem of too short contact time between the welding head and the steel bar, resulting in poor quality of the weld. Summary of the invention

[0005] In view of this, the present invention provides a steel cage rolling welding machine, which aims to solve the technical problems in the prior art of inaccurate positioning of the welding head during welding, frequent shutdown of the device, severe wear and short welding time.

[0006] In order to solve the above technical problems, the present invention provides a steel cage rolling welding machine, which adopts the following technical scheme: a steel cage rolling welding machine, comprising a main reinforcement guide plate and a welding head assembled on a rolling welding machine body, the main reinforcement moving direction is from back to front, a rotating ring that can rotate around its own axis is installed on the front side of the main reinforcement guide plate, and a guide rod with a hollow interior and for spiral reinforcement to pass through is installed on the front side of the rotating ring; the front side of the rotating ring is connected to a mounting seat, and a moving rod is slidably connected to the front side of the mounting seat, a tension spring 1 is provided between the mounting seat and the moving rod, a sliding rod is connected to the front end of the moving rod, a sliding groove is provided on the sliding rod, the sliding groove is composed of a groove 1 and a groove 2, the groove 1 extends along the circumference of the steel cage, the top end of the groove 2 is connected to the bottom end of the groove 1, the groove 2 is tilted to the left from top to bottom, one end of the welding head is slidably inserted in the sliding groove, the axial direction of the welding head is parallel to the radial direction of the steel cage, and a tension spring 2 that can make the welding head have an upward movement trend is provided in the sliding rod.

[0007] By adopting the above technical solution, the main reinforcement moves from the rear side to the front side, that is, the movement direction of the steel cage is to translate forward along its own central axis, and the rotation direction of the rotating ring is clockwise. The welding head located at the top of the sliding rod abuts against the node of the steel cage. Specifically, the welding head is located at the front side of the spiral reinforcement and below the main reinforcement. As the main reinforcement moves forward, the welding head abuts against the spiral reinforcement, so that the tension spring 1 is stretched, and the sliding rod moves forward relative to the mounting seat; as the rotating ring rotates, the welding head abuts against the main reinforcement, so that the tension spring 2 is stretched, and the welding head moves downward relative to the sliding rod.

[0008] During the process of the welding head moving downward relative to the sliding rod, when the welding head is located in slot one, since slot one extends along the circumference of the steel cage, during the movement of the welding head, the end of the welding head is always connected with the node, and the connection between the main reinforcement and the spiral reinforcement is welded; when the welding head is located in slot two, since slot two is tilted to the left from top to bottom, the welding head moves along slot two, and the welding head moves away from the central axis of the steel cage, so that the welding head is separated from the main reinforcement and the spiral reinforcement. Under the action of tension springs one and two, the sliding rod moves backward relative to the mounting seat, and the welding head moves upward relative to the sliding rod, so that the welding head can weld the next node.

[0009] The welding head of this solution can automatically connect with the steel cage, which improves the positioning efficiency and helps to speed up the welding process. Compared with the previous short contact between the welding head and the node, this solution prolongs the contact time between the welding head and the node, which can ensure that the welding point obtains sufficient heat, making the welding more solid and helping to reduce welding defects. In addition, during the welding process, the steel cage translates along its own axis and rotates around its own axis. The translation of the steel cage and the rotation of the rotating ring are continuous movements, which reduces the pause time during the welding process, thereby improving the overall welding efficiency. The structure is relatively simple, which is convenient for daily maintenance and replacement.

[0010] Optionally, a positioning plate is fixedly sleeved on the movable rod, and two positioning blocks are provided on the positioning plate, which are successively located above and below the welding head. Two positioning rods are fixedly connected to one side of the positioning block close to the central axis of the steel cage, and the spiral reinforcement passes between the two positioning rods.

[0011] By adopting the above technical solution, the spiral reinforcement passes through between the two positioning rods, so that the positioning block can limit the position of the spiral reinforcement. The two positioning blocks located above and below the welding head cooperate with each other, which can limit the spiral angle of the spiral reinforcement during welding, reduce the vibration and displacement of the spiral reinforcement during welding, and make the welding more stable, thereby ensuring the overall geometric shape and dimensional accuracy of the steel cage, reducing welding errors, and improving welding quality.

[0012] Optionally, the positioning block is also arranged at the bottom of the positioning plate.

[0013] By adopting the above technical solution, the positioning block at the bottom of the positioning plate can cooperate with the two positioning blocks above the positioning plate, which can extend the limiting time of the spiral reinforcement, provide time for the cooling of the weld at the node of the steel cage, and reduce the accidental deviation of the spiral reinforcement when the weld is not completely cooled, which helps the weld to solidify and cool better, reduce the risk of thermal cracks and stress concentration, and thus improve the quality of the weld.

[0014] Optionally, the positioning block is slidably connected to the positioning plate in the front-rear direction, and the positioning plate is provided with a positioning piece for limiting the position of the positioning block.

[0015] By adopting the above technical solution, the flexibility of the device can be improved and it is suitable for fixing spiral ribs with different spiral angles.

[0016] Optionally, the positioning member includes a support rod and a screw, the support rod extends axially along the steel cage, the support rod is connected to the positioning plate, the positioning block is slidably mounted on the support rod, a threaded hole is opened on the positioning block, the screw is threadedly connected in the threaded hole and abuts against the support rod.

[0017] By adopting the above technical solution, it is convenient to lock and unlock the movement of the positioning block, and the device is flexible and easy to operate.

[0018] Optionally, there are two support rods, which are arranged in parallel.

[0019] By adopting the above technical solution, the stability of the device is improved and the accidental tilting of the positioning block is reduced.

[0020] Optionally, a connecting rod is provided in the sliding groove, and two tension springs are set on the connecting rod.

[0021] By adopting the above technical solution, the stability of the device is improved and the risk of the second tension spring being stuck is reduced.

[0022] Optionally, a mounting plate is provided on the front side of the main rib guide plate, a through hole is opened on the mounting plate and penetrates the mounting plate in the front-to-back direction, and a spiral rib feeding ring is connected to the rear side of the mounting plate.

[0023] In summary, the present invention includes the following beneficial technical effects:

[0024] 1. The welding head of this scheme can automatically connect with the steel cage, which improves the positioning efficiency and helps to speed up the welding process. Compared with the previous short contact between the welding head and the node, this scheme prolongs the contact time between the welding head and the node, which can ensure that the welding point obtains sufficient heat, making the welding more solid and helping to reduce welding defects. In addition, during the welding process, the steel cage translates along its own axis and rotates around its own axis. The translation of the steel cage and the rotation of the rotating ring are continuous movements, which reduces the pause time during the welding process, thereby improving the overall welding efficiency.

[0025] 2. The positioning block can limit the position of the spiral rib. The two positioning blocks located above and below the welding head cooperate with each other to limit the spiral angle of the spiral rib during welding, reduce the vibration and displacement of the spiral rib during welding, and make welding more stable.

[0026] 3. The positioning block at the bottom of the positioning plate can cooperate with the two positioning blocks above the positioning plate to extend the limiting time of the spiral reinforcement, provide time for the cooling of the weld at the node of the steel cage, reduce the accidental deviation of the spiral reinforcement when the weld is not completely cooled, and help the weld to solidify and cool better. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2 It is a structural schematic diagram of a main reinforcement guide plate and a welding positioning assembly in an embodiment of the present invention;

[0029] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A;

[0030] Figure 4 It is a schematic diagram of the structure of the guide rod and the sliding rod in an embodiment of the present invention;

[0031] Figure 5 for Figure 4 A partial enlarged schematic diagram of part B;

[0032] Figure 6 It is a schematic diagram of the structure of the guide rod and the positioning plate in an embodiment of the present invention;

[0033] Figure 7 for Figure 6A partial enlarged schematic diagram of part C in the middle.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. Roll welding machine body; 11. Base; 12. Main reinforcement temporary storage plate; 13. Main reinforcement guide plate; 14. Spiral reinforcement feeding ring; 15. Mounting plate; 16. Steel cage guide plate; 2. Welding head; 3. Welding positioning assembly; 4. Rotating ring; 5. Guide rod; 6. Mounting seat; 7. Moving rod; 71. Tension spring one; 8. Sliding rod; 81. Sliding groove; 811. Groove one; 812. Groove two; 82. Tension spring two; 83. Connecting rod; 9. Positioning plate; 91. Positioning hole one; 92. Positioning hole two; 10. Positioning block; 101. Positioning rod; 102. Positioning piece; 103. Support rod; 104. Screw. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0036] The following is combined with Figure 1 -Attached Figure 7 The present invention is described in further detail.

[0037] The embodiment of the present invention discloses a steel cage rolling welding machine. Figures 1 to 7 A steel cage roll welding machine includes a roll welding machine body 1, a welding head 2 and a welding positioning assembly 3. The roll welding machine body 1 is used to move a plurality of circumferentially arranged main bars forward, and at the same time, the spiral bars are wound around the main bars along the circumferential direction. The position of the welding head 2 is controlled by the welding positioning assembly 3, so that the welding head 2 welds a plurality of nodes to complete the welding of the steel cage.

[0038] Reference Figure 1 The seam welding machine body 1 includes a base 11 and a main reinforcement temporary storage plate 12, a main reinforcement guide plate 13, a spiral reinforcement feeding ring 14, a mounting plate 15 and a reinforcement cage guide plate 16 which are arranged in sequence from back to front on the base 11.

[0039] Reference Figure 1 The base 11 extends in the front-to-back direction, and a plurality of main reinforcement temporary storage plates 12 are provided. The main reinforcement temporary storage plates 12 are composed of a bottom plate and a connecting frame. The bottom plate is open upward, and the connecting frame is composed of a plurality of temporary storage rods arranged circumferentially. The connecting frame rotates around its own axis, and the main reinforcement is placed between two adjacent temporary storage rods in sequence. After the placement of multiple main reinforcements is completed, the main reinforcements are pulled so that the multiple main reinforcements pass through the through holes on the main reinforcement guide plate 13 in sequence, and the multiple main reinforcements passing through the main reinforcement guide plate 13 form the frame of the steel cage.

[0040] Reference Figure 1 The provision of the main reinforcement temporary storage plate 12 can provide preliminary guidance for the main reinforcement, reduce the force of mutual interference between the main reinforcement guide plate 13 and the main reinforcement, and facilitate the smooth movement of the main reinforcement. Multiple main reinforcements pass through the multiple through holes on the main reinforcement guide plate 13 in a one-to-one correspondence, so that the multiple main reinforcements are arranged along the circumference of the main reinforcement guide plate 13 to form a steel cage frame, which is convenient for subsequent winding of spiral reinforcement.

[0041] Reference Figure 1 The spiral reinforcement feeding ring 14 is fixedly connected to the rear side of the mounting plate 15. Initially, the spiral reinforcement is wound on the feeding ring, and then the spiral reinforcement is pulled to the position between the spiral reinforcement feeding ring 14 and the main reinforcement guide plate 13, so as to facilitate welding of the contact position between the spiral reinforcement and the main reinforcement, that is, welding of the nodes of the reinforcement cage. The mounting plate 15 is provided with a through hole that penetrates the mounting plate 15 in the front-to-back direction for the movement of the reinforcement cage.

[0042] Reference Figure 1 The front ends of the plurality of main bars are inserted into the through holes on the steel cage guide plate 16 in a one-to-one correspondence, and the steel cage guide plate 16 limits the position of the main bars relative to the steel cage guide plate 16. Then the steel cage guide plate 16 moves forward and drives the plurality of main bars to move forward.

[0043] Reference Figure 2 and Figure 3 The axial direction of the welding head 2 is parallel to the radial direction of the steel cage, and the welding method adopts resistance welding. Resistance welding uses the resistance heat generated when the current passes through the workpiece and the welding contact surface to heat the weldment to a plastic or partially melted state.

[0044] Specifically, when current passes through a conductor, heat is generated due to resistance. When the current remains unchanged, the greater the resistance, the more heat is generated. When two pieces of metal are in contact, the resistance at the contact point is much greater than the resistance inside the metal. Therefore, when current passes through the node of the steel cage, the main reinforcement and spiral reinforcement at the node are heated and connected into one, thus completing the welding of the steel cage.

[0045] Resistance welding does not require filler materials such as welding rods or wires, which reduces material costs and subsequent processing procedures. The heat affected area of ​​resistance welding is small, the overall deformation of the main reinforcement and spiral reinforcement is small, the welding speed is fast, the production efficiency is high, no smoke and harmful gases are generated during the welding process, and the pollution to the environment is small, which is beneficial to protecting the health of the operators.

[0046] Reference Figure 2 and Figure 3 The welding positioning assembly 3 includes a rotating ring 4, a guide rod 5, a mounting seat 6, a moving rod 7 and a sliding rod 8.

[0047] Reference Figure 1 and Figure 2The rotating ring 4 is rotatably connected to the front side of the main reinforcement guide plate 13, the rotating ring 4 is coaxially arranged with the reinforcement cage, and the rotating ring 4 rotates around its own central axis. Specifically, a transmission member of a rotating motor and a gear can be arranged on the main reinforcement guide plate 13 to drive the rotation of the rotating ring 4.

[0048] Reference Figure 2 and Figure 4 The guide rod 5 is fixedly connected to the front side of the rotating ring 4. The guide rod 5 is hollow inside and spirally arranged. The spiral ribs on the spiral rib feeding ring 14 pass through the inside of the guide rod 5 and are then welded to the main ribs. The guide rod 5 has a guiding effect on the spiral ribs, which facilitates welding of the contact position of the spiral ribs with the main ribs, reduces the risk of the spiral ribs deflecting under stress, and improves the stability of the device.

[0049] Reference Figure 2 The mounting seat 6 is fixedly connected to the front side of the rotating ring 4, and a gap is left between the mounting seat 6 and the guide rod 5. The mounting seat 6 is used to provide installation space and support for other structures.

[0050] Reference Figure 6 and Figure 7 The moving rod 7 is slidably connected to the front side of the mounting seat 6 in the front-rear direction, and the axial direction of the moving rod 7 is parallel to the axial direction of the steel cage. A tension spring 71 is provided between the rear end of the moving rod 7 and the mounting seat 6, and the tension spring 71 extends along the axial direction of the moving rod 7. Under the action of the tension spring 71, the moving rod 7 has a movement tendency to approach the mounting seat 6.

[0051] Reference Figure 3 and Figure 5 , the sliding rod 8 is fixedly connected to the front end of the moving rod 7. The sliding rod 8 is arc-shaped, and the sliding rod 8 is tilted to the left from top to bottom. A sliding groove 81 is provided on the front side of the sliding rod 8, and the sliding groove 81 is composed of a groove 1 811 and a groove 2 812. The groove 1 811 is located above the groove 2 812, and the bottom end of the groove 1 811 is connected to the top end of the groove 2 812. The groove 1 811 extends along the circumference of the steel cage, and the groove 2 812 is tilted to the left from top to bottom. One end of the welding head 2 is slidably inserted into the sliding groove 81. When the welding head 2 slides from top to bottom along the sliding groove 81, it is restricted by the extension direction of the groove 1 811 and the groove 2 812, and the welding head 2 first moves along the circumference of the steel cage, and then moves away from the steel cage. A tension spring 82 is provided in the sliding groove 81 , the top end of the tension spring 82 is connected to the top wall of the groove 1 811 , and the bottom end of the tension spring 82 is connected to the end of the welding head 2 . Under the action of the tension spring 82 , the welding head 2 tends to move upward along the sliding groove 81 .

[0052] Reference Figure 3 and Figure 5, the main reinforcement moves from the rear side to the front side, that is, the movement direction of the reinforcement cage is to translate forward along its own central axis, and the rotation direction of the rotating ring 4 is clockwise. The welding head 2 located at the top of the sliding rod 8 abuts against the node of the reinforcement cage. Specifically, the welding head 2 is located at the front side of the spiral reinforcement and below the main reinforcement. As the main reinforcement moves forward, the tension spring 1 71 is stretched due to the abutment of the welding head 2 against the spiral reinforcement, and the sliding rod 8 moves forward relative to the mounting seat 6; as the rotating ring 4 rotates, the tension spring 2 82 is stretched due to the abutment of the welding head 2 against the main reinforcement, and the welding head 2 moves downward relative to the sliding rod 8.

[0053] During the process of the welding head 2 moving downward relative to the sliding rod 8, when the welding head 2 is located in the groove 1 811, since the groove 1 811 extends along the circumference of the steel cage, during the movement of the welding head 2, the end of the welding head 2 is always connected with the node, and the connection between the main reinforcement and the spiral reinforcement is welded; when the welding head 2 is located in the groove 2 812, since the groove 2 812 is tilted to the left from top to bottom, the welding head 2 moves along the groove 2 812, and the welding head 2 moves away from the central axis of the steel cage, so that the welding head 2 is separated from the main reinforcement and the spiral reinforcement, and under the action of the tension spring 1 71 and the tension spring 2 82, the sliding rod 8 moves backward relative to the mounting seat 6, and the welding head 2 moves upward relative to the sliding rod 8, so that the welding head 2 can weld the next node.

[0054] Compared with the short contact between the welding head 2 and the node in the past, this solution prolongs the contact time between the welding head 2 and the node, which can ensure that the welding point obtains sufficient heat, making the welding more solid, and helping to reduce welding defects. In addition, during the welding process, the steel cage translates along its own axis, and the rotating ring 4 rotates around its own axis. The translation of the steel cage and the rotation of the rotating ring 4 are continuous movements, which reduces the pause time during the welding process, thereby improving the overall welding efficiency. The structure is relatively simple, which is convenient for daily maintenance and replacement.

[0055] Reference Figure 3 and Figure 5 Furthermore, a connecting rod 83 is provided in the sliding groove 81, and the second tension spring 82 is sleeved on the connecting rod 83. The connecting rod 83 can limit the extension direction of the second tension spring 82, provide a guide for the movement of the second tension spring 82, reduce the risk of the second tension spring 82 being accidentally stuck during extension, and improve the stability of the device.

[0056] Reference Figure 2 , Figure 3 and Figure 7Furthermore, a positioning plate 9 is fixedly sleeved on the moving rod 7, and a positioning hole 91 is opened on the positioning plate 9 and penetrates the positioning plate 9 in the front-back direction. The welding head 2 passes through the positioning hole 91, and the inner wall of the positioning hole 91 is connected to two positioning blocks 10, and the two positioning blocks 10 are successively located above and below the welding head 2. Two positioning rods 101 are fixedly connected to the side of the two positioning blocks 10 close to the steel cage, and the spiral reinforcement passes between the two positioning rods 101.

[0057] Reference Figure 3 and Figure 7 The spiral rib passes through between the two positioning rods 101 on the positioning block 10, so that the positioning block 10 can limit the position of the spiral rib. The two positioning blocks 10 located above and below the welding head 2 cooperate with each other to limit the spiral angle of the spiral rib during welding, reduce the vibration and displacement of the spiral rib during welding, and make the welding more stable, thereby ensuring the overall geometric shape and dimensional accuracy of the steel cage, reducing welding errors, and improving welding quality.

[0058] Reference Figure 2 and Figure 3 Furthermore, a second positioning hole 92 is provided at the bottom of the positioning plate 9 , and a positioning block 10 is also connected to the inner wall of the second positioning hole 92 .

[0059] The positioning block 10 at the bottom of the positioning plate 9 can cooperate with the two positioning blocks 10 above the positioning plate 9 to extend the limiting time of the spiral reinforcement, provide time for cooling the weld at the node of the steel cage, and reduce the occurrence of accidental deviation of the spiral reinforcement when the weld is not completely cooled, which helps the weld to solidify and cool better, reduce the risk of thermal cracks and stress concentration, and thus improve the quality of the weld.

[0060] Reference Figure 3 Further, the positioning block 10 slides in the front-rear direction, and the positioning plate 9 is provided with a positioning member 102 for limiting the position of the positioning block 10. The sliding arrangement of the positioning block 10 can improve the flexibility of the device and is suitable for fixing spiral ribs with different spiral angles.

[0061] Specifically, the positioning member 102 includes a support rod 103 and a screw 104. Taking the positioning block 10 at the positioning hole 1 91 as an example, the support rod 103 is fixedly connected to the inner wall of the positioning hole 1 91, the support rod 103 extends along the axial direction of the steel cage, the positioning block 10 is slidably sleeved on the support rod 103, and a threaded hole is provided on the side of the positioning block 10 away from the steel cage, and the screw 104 is threadedly connected in the threaded hole and abuts against the support rod 103. It is convenient to limit the position of the positioning block 10, the structure is simple, and it is easy to operate.

[0062] Each set of positioning members 102 has two support rods 103, which are arranged in parallel, which is beneficial to improving the stability of the device and reducing the risk of accidental tilting of the positioning block 10.

[0063] The implementation principle of a steel cage rolling welding machine according to an embodiment of the present invention is as follows:

[0064] A plurality of main bars are placed in sequence between two adjacent temporary storage rods. After the plurality of main bars are placed, the main bars are pulled to make the plurality of main bars pass through the through holes on the main bar guide plate 13 in sequence, and then the plurality of main bars are passed through the through holes on the steel cage guide plate 16 in sequence. The limiting pieces at the through holes on the steel cage guide plate 16 are adjusted to limit the position of the main bars relative to the steel cage guide plate 16, so that when the steel cage guide plate 16 moves forward, the steel cage also moves forward.

[0065] The spiral ribs on the spiral rib feeding ring 14 pass through the inside of the guide rod 5 and are connected to the main ribs. The spiral ribs pass between the two positioning rods 101 on the positioning block 10.

[0066] Start the device, rotate the rotating ring 4 clockwise, the main reinforcement moves forward, and when the welding head 2 is connected with the steel cage, current flows out from the welding head 2, flows through the steel cage to the main reinforcement guide plate 13, so that a large amount of heat is generated at the contact position of the main reinforcement and the spiral reinforcement and connected into one, completing the welding.

[0067] During the welding process, the welding head 2 is initially located at the top of the sliding rod 8, and the welding head 2 extends and abuts against the node of the steel cage. Specifically, the welding head 2 is located at the front side of the spiral reinforcement and below the main reinforcement. As the main reinforcement moves forward, the welding head 2 abuts against the spiral reinforcement, so that the tension spring 1 71 is stretched, and the sliding rod 8 moves forward relative to the mounting seat 6; as the rotating ring 4 rotates, the welding head 2 abuts against the main reinforcement, so that the tension spring 2 82 is stretched, and the welding head 2 moves downward relative to the sliding rod 8.

[0068] During the process of the welding head 2 moving downward relative to the sliding rod 8, when the welding head 2 is located in the groove 1 811, since the groove 1 811 extends along the circumference of the steel cage, during the movement of the welding head 2, the end of the welding head 2 is always connected with the node, and the connection between the main reinforcement and the spiral reinforcement is welded; when the welding head 2 is located in the groove 2 812, since the groove 2 812 is tilted to the left from top to bottom, the welding head 2 moves along the groove 2 812, and the welding head 2 moves away from the central axis of the steel cage, so that the welding head 2 is separated from the main reinforcement and the spiral reinforcement, and under the action of the tension spring 1 71 and the tension spring 2 82, the sliding rod 8 moves backward relative to the mounting seat 6, and the welding head 2 moves upward relative to the sliding rod 8. At this time, the device returns to the initial state, the welding head 2 extends out and abuts against the next node for welding.

[0069] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A steel cage rolling welding machine, comprising a main reinforcement guide plate and a welding head mounted on the rolling welding machine body, wherein the main reinforcement moves from the back to the front, a rotating ring capable of rotating around its own axis is installed on the front side of the main reinforcement guide plate, and a guide rod with a hollow interior for spiral reinforcement to pass through is installed on the front side of the rotating ring, characterized in that: The front side of the rotating ring is connected to a mounting seat, and the front side of the mounting seat is slidably connected to a moving rod. A tension spring 1 is provided between the mounting seat and the moving rod. A sliding rod is connected to the front end of the moving rod. A sliding groove is provided on the sliding rod. The sliding groove is composed of a groove 1 and a groove 2. The groove 1 extends along the circumference of the steel cage, and the top end of the groove 2 is connected to the bottom end of the groove 1. The groove 2 is inclined to the left from top to bottom. One end of the welding head is slidably inserted into the sliding groove. The axial direction of the welding head is parallel to the radial direction of the steel cage. A tension spring 2 is provided in the sliding rod to enable the welding head to have an upward movement tendency. A positioning plate is fixedly sleeved on the moving rod, and two positioning blocks are arranged on the positioning plate, which are located above and below the welding head in sequence. Two positioning rods are fixedly connected to one side of the positioning block close to the central axis of the steel cage, and the spiral reinforcement passes through between the two positioning rods; A mounting plate is provided at the front side of the main rib guide plate, a through hole penetrating the mounting plate in the front-to-back direction is provided on the mounting plate, and a spiral rib feeding ring is connected to the rear side of the mounting plate.

2. A steel cage rolling welding machine according to claim 1, characterized in that: The positioning block is arranged at the bottom of the positioning plate.

3. A steel cage rolling welding machine according to claim 2, characterized in that: The positioning block is slidably connected to the positioning plate in the front-rear direction, and the positioning plate is provided with a positioning piece for limiting the position of the positioning block.

4. A steel cage rolling welding machine according to claim 3, characterized in that: The positioning member includes a support rod and a screw. The support rod extends along the axial direction of the steel cage and is connected to the positioning plate. The positioning block is slidably mounted on the support rod. A threaded hole is provided on the positioning block. The screw is threadedly connected in the threaded hole and abuts against the support rod.

5. A steel cage rolling welding machine according to claim 4, characterized in that: There are two support rods, and the two support rods are arranged in parallel.

6. A steel cage rolling welding machine according to claim 1, characterized in that: A connecting rod is arranged in the sliding groove, and two tension springs are sleeved on the connecting rod.

Images