A steel bar cage rolling welding machine and its steel bar cage welding method

Abstract

The present invention discloses a steel cage rolling welding machine and a steel cage welding method thereof, belonging to the field of machining equipment, including longitudinal guide rails, brackets arranged at both ends of the longitudinal guide rails, and a rotation driving mechanism installed on the brackets. The brackets are used to support the steel cage, the rotation driving mechanism is drivingly connected to the steel cage, a longitudinal moving seat is slidably arranged on the longitudinal guide rails between the two brackets, the longitudinal moving seat is connected with a longitudinal moving driving mechanism, a wire winding roller and a welding torch are respectively arranged on both sides of the steel cage on the longitudinal moving seat. The wire winding roller is used to output the spiral bar to be wound around the main bars of the steel cage, and the welding torch is used to align and weld the welding points of the spiral bar and the main bars. The present invention uses the rotation driving mechanism to drive the steel cage to rotate, and at the same time, uses the longitudinal moving driving mechanism to drive the longitudinal moving seat to move, so as to achieve the purpose of spirally winding the spiral bar on the steel cage and welding it while the steel cage rotates in place. Compared with the way of longitudinal feeding of the steel cage, it can reduce the floor area of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of machining equipment, and particularly to a steel cage rolling welding machine and a steel cage welding method thereof. Background Art

[0002] A steel cage is a steel bar structure formed by enclosing a plurality of steel bars into a circular body, then spirally winding the spiral bars on the outer diameter side of the circular body and welding them. If the steel cage is made manually, not only the production efficiency is low, the production cost is high, but also the quality is difficult to guarantee. There are also existing devices for producing steel cages in the prior art. For example, a rolling welding machine, but the existing rolling welding machines mainly have the problem of large floor area.

[0003] There is a rolling welding machine disclosed in the existing patent literature. For example, a Chinese patent with the authorization announcement number of CN 208713209 U discloses a rear frame-driven electric pole steel cage rolling welding machine. Before welding, 12 steel bar main reinforcements are taken to form a steel cage. The front end of the steel cage is fixedly installed on a harmonic reducer, and the rear end passes through the central positions of a wire winding device and a diameter-changing device. The stepping motor and the harmonic reducer are started, and the gear in the diameter-changing device cooperates with the rack to operate. The gear rotates counterclockwise, and the engaged rack extends towards the surface of the steel cage, causing the diameter of the steel cage to shrink. After the shrunk steel cage passes through the wire winding device, the surface is fixed by wire winding. A transverse movement device on one side of the wire winding device drives the welding machine to perform transverse welding along the surface of the steel cage. When the rear frame is longitudinally pulled to the left continuously to traction the steel cage, the harmonic reducer drives the steel cage to rotate. Every time it rotates 30°, the welding machine stops to supply wire for welding. The movements of the rear frame, the harmonic reducer, and the transverse movement device are carried out simultaneously until each node on the steel cage is welded. This solution uses the rear frame to traction the steel cage, that is, the feeding movement is realized by the steel cage, resulting in the need for twice the length of the steel cage at the welding site and a large floor area.

[0004] For another example, a Chinese patent with the application publication number CN 107790908 A discloses a numerically controlled steel reinforcement cage rolling and winding welding machine. The welding machine includes a base, a steel bar straightening and bending machine, a direction adjusting device, a cage roller, and a welding machine. The cage roller is concentric with the base. The direction adjusting device is arranged on the right side of the base. The steel bar straightening and bending machine is arranged below the direction adjusting device. The welding machine is fixedly arranged on the upper part of the cage roller of the base. The base includes a central disc, a rotating rod, and a bolt. The middle part of the base is a circular hollow structure. The central disc is arranged at the center of the circular hollow structure. One ends of four rotating rods are evenly connected to the outer periphery of the central disc, and the other ends are fixedly connected to the inner periphery of the circular hollow structure through bolts. In this solution, the iron bars are straightened by the steel bar straightening and bending machine. The straightened iron bars are wound around the cage roller. The cage roller rotates and advances driven by a motor, so that the iron bars are wound around the cage roller. The welding machine on the base welds the iron bars to the steel bars as the cage roller rotates. The direction adjusting device is used to adjust the angle of the steel bar straightening and bending machine. It can be seen that this solution also adopts the method in which the feeding motion is realized by the cage roller, resulting in the need for twice the length of the cage roller at the welding site and a large floor area. Summary of the Invention

[0005] The object of the present invention is to provide a steel reinforcement cage rolling welding machine and a steel reinforcement cage welding method thereof to solve the problems existing in the above-mentioned prior art. By rotatably arranging the steel reinforcement cage on the bracket, arranging the welding torch and the wire winding drum on the longitudinal moving seat, and using the rotation driving mechanism to drive the rotation of the steel reinforcement cage, and at the same time, using the longitudinal moving driving mechanism to drive the longitudinal moving seat to move, the purpose of spirally winding the spiral bars on the steel reinforcement cage and welding can be achieved under the condition that the steel reinforcement cage rotates in place. Compared with the method of longitudinal feeding of the steel reinforcement cage, the floor area of the equipment can be reduced.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a steel reinforcement cage rolling welding machine, including a longitudinal guide rail, brackets arranged at both ends of the longitudinal guide rail, and a rotation driving mechanism installed on the brackets. The brackets are used to support the steel reinforcement cage. The rotation driving mechanism is drivingly connected to the steel reinforcement cage. A longitudinal moving seat is slidably arranged between the two brackets on the longitudinal guide rail. The longitudinal moving seat is connected with a longitudinal moving driving mechanism. A wire winding drum and a welding torch are respectively arranged on both sides of the steel reinforcement cage on the longitudinal moving seat. The wire winding drum is used to output spiral bars spirally wound on the main bars of the steel reinforcement cage. The welding torch is used to align and weld the welding points of the spiral bars and the main bars.

[0008] Preferably, a floating support is arranged on the longitudinal moving seat. The floating support includes a cylinder body, a compression spring arranged in the cylinder body, a piston abutted against the compression spring and extending outside the cylinder body, and a support plate connected to the top end of the piston. The support plate abuts against the bottom of the steel reinforcement cage.

[0009] Preferably, at least one of the brackets is movably arranged on the longitudinal guide rail for adjusting the distance between the two brackets.

[0010] Preferably, it includes a first chuck and a second chuck. Fixing grooves for fixing the main bars are respectively arranged on the first chuck and the second chuck. The diameter of the steel reinforcement cage defined at the first chuck is larger than the diameter of the steel reinforcement cage defined at the second chuck.

[0011] Preferably, the rotation driving mechanism includes a slewing motor and a second coupling connected to the slewing motor, and the second coupling is connected to the first chuck.

[0012] Preferably, the welding torch is connected to the longitudinal moving seat through a transverse moving seat. A guide rod and a lead screw are arranged in parallel on the longitudinal moving seat. A nut threadedly connected to the lead screw and a guide sleeve slidably connected to the guide rod are arranged at the bottom of the transverse moving seat, and the lead screw is connected with a transverse moving driving mechanism.

[0013] Preferably, the transverse moving driving mechanism includes a transverse moving motor and a third coupling connected to the transverse moving motor, and the third coupling is connected with the lead screw.

[0014] Preferably, the longitudinal moving driving mechanism includes a driving wheel and a driven wheel located at two ends of the longitudinal guide rail and a toothed belt sleeved on the driving wheel and the driven wheel. The toothed belt is connected to the longitudinal moving seat through a connecting plate, and the driving wheel is connected with a longitudinal moving motor through a first coupling.

[0015] Preferably, it includes a PLC controller. The slewing motor, the transverse moving motor and the longitudinal moving motor are respectively electrically connected to the PLC controller, and the PLC controller controls the slewing motor, the transverse moving motor and the longitudinal moving motor in a linkage manner.

[0016] The present invention also provides a method for welding a steel reinforcement cage, including the following steps:

[0017] Support the main bars of the steel reinforcement cage on the brackets and connect the rotation driving mechanism;

[0018] Use the wire winding drum on one side of the steel reinforcement cage to provide the spiral bars, and weld the starting head of the spiral bars on the main bars;

[0019] Rotate the steel reinforcement cage, longitudinally move the welding torch located on the other side of the steel reinforcement cage, and align the welding torch with the welding point of the main bars and the spiral bars for welding;

[0020] After the welding is completed, move the steel reinforcement cage away from the brackets, and reset the welding torch.

[0021] The present invention has achieved the following technical effects compared with the prior art:

[0022] (1) The present invention rotates the steel reinforcement cage on the bracket, sets the welding torch and the wire winding drum on the longitudinal moving seat, drives the rotation of the steel reinforcement cage by the rotation driving mechanism, and at the same time, drives the longitudinal moving seat to move by the longitudinal moving driving mechanism, so as to realize the purpose of helically winding the spiral bar on the steel reinforcement cage and welding it while the steel reinforcement cage rotates in place. Compared with the way of longitudinal feeding of the steel reinforcement cage, it can reduce the floor area of the equipment;

[0023] (2) The present invention is provided with a floating support on the longitudinal moving seat, and the support plate of the floating support abuts against the bottom of the steel reinforcement cage to support the steel reinforcement cage. The floating support moves with the longitudinal moving seat, which can prevent the bending deformation of the steel reinforcement cage caused by the bending force generated by its own weight;

[0024] (3) At least one bracket of the present invention is movably arranged on the longitudinal guide rail. By adjusting the position of the movable bracket on the longitudinal guide rail, the distance between the two brackets can be adjusted. On the one hand, the main bars of the steel reinforcement cage can be smoothly installed on the first chuck and the second chuck, and on the other hand, the support for steel reinforcement cages of different lengths can be realized by adjusting the distance;

[0025] (4) The diameter of the steel reinforcement cage defined at the first chuck of the present invention is larger than the diameter of the steel reinforcement cage defined at the second chuck, that is, by selecting the first chuck and the second chuck, the steel reinforcement cage can be defined as a conical structure, and the taper size of the conical structure can be defined;

[0026] (5) The present invention connects the welding torch to the longitudinal moving seat through the transverse moving seat, and drives the welding torch to move horizontally by the transverse moving driving mechanism, which can move the distance between the welding torch and the steel reinforcement cage, so as to be applicable to the welding of steel reinforcement cages with a certain taper, ensure the accuracy of the welding position, and ensure the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 is the front view of the present invention;

[0029] Figure 2 is Figure 1 the schematic diagram of the structure at A in

[0030] Figure 3 is the top view of the present invention;

[0031] Figure 4 isFigure 3 Schematic diagram of the structure at position B in the [device / component name];

[0032] Figure 5 Schematic diagram of the floating support structure of the present invention;

[0033] Figure 6 Schematic diagram of the connection of the PLC controller of the present invention;

[0034] Wherein, 1, rotary motor; 2, floating support; 3, transverse movement base; 5, guide rod; 6, support base; 7, longitudinal movement base; 8, connecting plate; 9, bearing; 10, longitudinal movement motor; 11, first coupling; 12, driving wheel; 13, first chuck; 14, wire winding drum; 15, rib guide base; 16, camera; 17, first guide rail; 18, toothed belt; 19, compression screw; 20, driven wheel; 21, first wall panel; 22, driving shaft; 23, first bracket; 24, second coupling; 25, steel reinforcement cage; 251, main reinforcement; 252, spiral reinforcement; 26, transverse movement motor; 27, third coupling; 28, lead screw; 29, welding torch; 30, second guide rail; 31, second chuck; 32, second bracket; 33, driven shaft; 34, second wall panel; 35, nut; 36, guide sleeve; 37, baffle; 38, support plate; 39, piston; 40, cylinder block; 41, compression spring. Specific embodiments

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] The object of the present invention is to provide a steel reinforcement cage rolling welding machine and a steel reinforcement cage welding method thereof to solve the problems existing in the prior art. By rotatably arranging the steel reinforcement cage on the bracket, arranging the welding torch and the wire winding drum on the longitudinal movement base, driving the rotation of the steel reinforcement cage by the rotation driving mechanism, and at the same time, driving the longitudinal movement base to move by the longitudinal movement driving mechanism, the purpose of spirally winding the spiral reinforcement on the steel reinforcement cage and welding can be achieved while the steel reinforcement cage rotates in place. Compared with the longitudinal feeding method of the steel reinforcement cage, the floor area of the equipment can be reduced.

[0037] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] As Figures 1 to 5As shown in the figure, the present invention provides a steel reinforcement cage 25 rolling welding machine, which includes a longitudinal guide rail, brackets arranged at both ends of the longitudinal guide rail, and a rotation driving mechanism installed on the brackets. Among them, the longitudinal guide rail can adopt the first guide rail 17 and the second guide rail 30 arranged in parallel. The brackets can include the first bracket 23 and the second bracket 32. The first bracket 23 and the second bracket 32 are used to support the steel reinforcement cage 25, and the steel reinforcement cage 25 can rotate under the drive of the rotation driving mechanism. The steel reinforcement cage 25 includes main bars 251 and spiral bars 252 wound around the main bars 251. The main bars 251 are longitudinal threaded bars of the steel reinforcement cage 25, with a larger diameter and about 10 in number; the spiral bars 252 are threaded bars wound around the steel reinforcement cage 25, with a smaller diameter. One end of the first guide rail 17 and the second guide rail 30 can be connected by screws through the first wall panel 21, and the other end can be connected by screws through the second wall panel 34, jointly forming a rectangular integral body, which can be used as a base for supporting various components. The first bracket 23 can directly support the steel reinforcement cage 25, or the rotation driving mechanism can be arranged on the first bracket 23, and the main shaft of the rotation driving mechanism is used to connect and support the steel reinforcement cage 25. In order to better support the steel reinforcement cage 25, conversion support structures can be respectively arranged at both ends of the steel reinforcement cage 25. The conversion support structure can fix the main bars 251 of the steel reinforcement cage 25 (for example, provided with grooves for inserting and fixing the main bars 251), and at the same time, it also has a protruding end extending along the axis. The protruding end is used to be rotatably arranged on the second bracket 32 or the first bracket 23 through a bearing 9. A longitudinal movement seat 7 is slidably arranged on the longitudinal guide rail between the two brackets (the first bracket 23 and the second bracket 32). Both sides in the transverse width direction of the longitudinal movement seat 7 are slidably arranged on the first guide rail 17 and the second guide rail 30 respectively. The longitudinal movement seat 7 is connected with a longitudinal movement driving mechanism, and the longitudinal movement driving mechanism can drive the longitudinal movement seat 7 to move along the longitudinal guide rail. The longitudinal movement driving mechanism can adopt a lead screw and nut structure, a gear and rack structure or a telescopic oil cylinder structure, etc. On both sides of the longitudinal movement seat 7 where the steel reinforcement cage 25 is located, a wire winding roller 14 and a welding torch 29 are respectively arranged. The spiral bars 252 are wound on the wire winding roller 14. The spiral bars 252 pass through the guide bar seat 15 and then are wound around the steel reinforcement cage 25. When the steel reinforcement cage 25 rotates, the spiral bars 252 can be spirally wound around the main bars 251 of the steel reinforcement cage 25 along with the longitudinal movement of the wire winding roller 14. The welding torch 29 is used to align and weld the welding points of the spiral bars 252 and the main bars 251. Actually, during welding, each welding point can be welded, or welding can be carried out at intervals. By rotatably arranging the steel reinforcement cage 25 on the brackets, arranging the welding torch 29 and the wire winding roller 14 on the longitudinal movement seat 7, driving the steel reinforcement cage 25 to rotate by the rotation driving mechanism, and at the same time, driving the longitudinal movement seat 7 to move by the longitudinal movement driving mechanism, the present invention can achieve the purpose of spirally winding the spiral bars 252 on the steel reinforcement cage 25 and welding under the condition that the steel reinforcement cage 25 rotates in place. Compared with the way of longitudinal feeding of the steel reinforcement cage 25, it can reduce the floor area of the equipment.

[0039] Combined Figure 1 with Figure 5 As shown, a floating support 2 can be provided on the longitudinal movement seat 7. The floating support 2 includes a cylinder block 40, a compression spring 41 arranged in the cylinder block 40, a piston 39 abutted against the compression spring 41 and extending outside the cylinder block 40, and a support plate 38 connected to the top end of the piston 39. The support plate 38 abuts against the bottom of the steel reinforcement cage 25. The compression spring 41 gives an upward force to the piston 39 and the support plate 38, playing a supporting role and being able to offset the bending force of the steel reinforcement cage 25. The compression amount of the compression spring 41 should be greater than half of the diameter difference between the large end and the small end of the steel reinforcement cage 25 so as to be effectively supported in the entire length direction of the steel reinforcement cage 25. The position where the support plate 38 contacts the steel reinforcement cage 25 can be set to be arc-shaped, and the length of the arc should be greater than the spacing of the main reinforcement bars 251, and the width of the arc should be greater than the spacing of the spiral reinforcement bars 252. The floating support 2 moves longitudinally along with the longitudinal movement seat 7, and can prevent the steel reinforcement cage 25 from bending deformation caused by the bending force generated by its own weight.

[0040] At least one bracket is movably arranged on the longitudinal guide rail, that is, both the first bracket 23 and the second bracket 32 are movably arranged, or the first bracket 23 is movably arranged and the second bracket 32 is fixedly welded, or the first bracket 23 is fixedly welded and the second bracket 32 is movably arranged. Preferably, the first bracket 23 is fixedly welded on the longitudinal guide rail, and the rotation driving mechanism is arranged on the first bracket 23. The second bracket 32 is movably arranged on the longitudinal guide rail. The bottom of the second bracket 32 has horizontal extension parts corresponding to the first guide rail 17 and the second guide rail 30 respectively. The extension parts are respectively connected and fixed to the first guide rail 17 and the second guide rail 30 through the pressing screws 19 to realize the detachable fixation of the second bracket 32. By adjusting the fixed position of the second bracket 32, the distance between the first bracket 23 and the second bracket 32 can be adjusted. On the one hand, the main reinforcement bars 251 of the steel reinforcement cage 25 can be smoothly installed on the first chuck 13 and the second chuck 31 by adjusting the distance. On the other hand, the support for steel reinforcement cages 25 of different lengths can be realized by adjusting the distance.

[0041] Combined Figure 1 As shown, it includes a first chuck 13 and a second chuck 31. Fixing grooves for fixing the main reinforcement bars 251 are respectively provided on the first chuck 13 and the second chuck 31. The main reinforcement bars 251 are inserted into the fixing grooves at both ends and fixed by clamping with the first chuck 13 and the second chuck 31. The diameter of the steel reinforcement cage 25 defined at the first chuck 13 is larger than the diameter of the steel reinforcement cage 25 defined at the second chuck 31. That is, by the selection of the first chuck 13 and the second chuck 31, the steel reinforcement cage 25 can be defined as a conical structure, and the taper size of the conical structure can be defined through the selection and setting of the two chucks, which is suitable for welding and manufacturing steel reinforcement cages 25 of different size specifications.

[0042] As Figure 1And Figure 3 As shown, the rotation drive mechanism includes a rotary motor 1 and a second coupling 24 connected to the rotary motor 1. The second coupling 24 can connect the main shaft of the rotary motor 1 to the axial extension end of the first chuck 13. The rotary motor 1 is fixedly installed on the first bracket 23. The main shaft of the rotary motor 1 passes through and is rotatably supported by the first bracket 23, and the extended end is connected to the second coupling 24. The rotary motor 1 can be a stepping motor with planetary reduction, and the model of the stepping motor is 110BC380.

[0043] As Figure 2 And Figure 4 As shown, the welding torch 29 is connected to the longitudinal movement seat 7 through the transverse movement seat 3, and the nozzle is aligned with the middle part of the height of the steel reinforcement cage 25. Guide rods 5 and a lead screw 28 are arranged in parallel on the longitudinal movement seat 7 through a support seat 6. Among them, the lead screw 28 is rotatably arranged on the support seat 6, and the guide rod 5 can be rotatable or fixedly arranged on the support seat 6. The bottom of the transverse movement seat 3 is provided with a nut 35 threadedly connected to the lead screw 28 and a guide sleeve 36 slidably connected to the guide rod 5. By rotating the lead screw 28, the nut 35 can be driven to move, thereby driving the transverse movement seat 3 to move horizontally. The end of the lead screw 28 can also be connected with a transverse movement drive mechanism, and the transverse movement drive mechanism is used to provide driving force for the rotation of the lead screw 28. In the present invention, the welding torch 29 is connected to the longitudinal movement seat 7 through the transverse movement seat 3, and the transverse movement drive mechanism is used to drive the welding torch 29 to move horizontally, so that the distance between the welding torch 29 and the steel reinforcement cage 25 can be adjusted, thereby adapting to the change of the welding position caused by the steel reinforcement cage 25 with a certain taper, ensuring the accuracy of the welding position and the welding effect. In addition, a camera 16 can be arranged on the transverse movement seat 3. Through the camera 16, it can be observed in real time whether the welding torch 29 is aligned with the welding point and the effect after welding can be confirmed.

[0044] Furthermore, the transverse movement drive mechanism can include a transverse movement motor 26 and a third coupling 27 connected to the transverse movement motor 26. The third coupling 27 is connected to the lead screw 28. A baffle 37 can be arranged on the longitudinal movement seat 7. One end of the baffle 37 close to the axis of the lead screw 28 can be used to fixedly install the transverse movement motor 26 on the baffle 37. The transverse movement motor 26 can be a stepping motor, and the model of the stepping motor is 110BC380.

[0045] As Figure 1 And Figure 3As shown in the figure, the longitudinal movement drive mechanism includes a driving wheel 12 and a driven wheel 20 located at both ends of the longitudinal guide rail, and a toothed belt 18 sleeved on the driving wheel 12 and the driven wheel 20. The toothed belt 18 is connected to the longitudinal movement seat 7 through a connecting plate 8, and the connecting plate 8 can be fixed to the toothed belt 18 by screws. Driving the toothed belt 18 to move by the driving wheel 12 can drive the longitudinal movement seat 7 to move, that is, realize the longitudinal movement of the longitudinal movement seat 7. The driving wheel 12 can be sleeved and fixed on the driving shaft 22, and the driving shaft 22 is rotationally supported on the first guide rail 17 and the second guide rail 30. Since the driving shaft 22 is connected with a driving structure, the driving shaft 22 can be supported on the first guide rail 17 through the driving structure. The driven wheel 20 can be sleeved and fixed on the driven shaft 33, and the driven shaft 33 is rotationally supported on the first guide rail 17 and the second guide rail 30.

[0046] Furthermore, the driving shaft 22 connecting the driving wheel 12 can be connected with a longitudinal movement motor 10 through a first coupling 11. The longitudinal movement motor 10 is fixedly installed on the first guide rail 17, and the main shaft of the longitudinal movement motor 10 penetrates through the first guide rail 17 and is connected with the driving shaft 22 through the first coupling 11. Driving the driving shaft 22 to rotate by the longitudinal movement motor 10, and then driving the driving wheel 12 to rotate. The longitudinal movement motor 10 can be selected as a stepping motor, and the model of the stepping motor is 86BYG2500N-0501.

[0047] It can also include a PLC controller. The rotary motor 1, the transverse movement motor 26 and the longitudinal movement motor 10 are respectively electrically connected to the PLC controller, and the PLC controller controls the rotary motor 1, the transverse movement motor 26 and the longitudinal movement motor 10 in a linkage manner. Specifically, the PLC controller mainly controls the angular displacement, angular velocity and steering of the rotation of the rotary mechanism; controls the displacement, speed and direction of the longitudinal movement mechanism and the transverse movement mechanism. It can adapt to the roll welding processing of different steel reinforcement cages 25 (including steel reinforcement cages 258 with different lengths, different diameters, and circular or conical structures), and can improve the movement accuracy. Using PLC control can resist the interference at the welding site and improve the welding quality.

[0048] Such as Figure 6As shown in the figure, the output end of the PLC controller is connected to three drivers, which are respectively connected to the stepping motors of the slewing mechanism, the longitudinal movement mechanism, and the transverse movement mechanism. The PLC controller can achieve automatic cycling and manual adjustment. Specifically, the PLC controller can adopt FP-XC38AT. The driver of the slewing motor 1 is connected to the Y0 and Y1 pins of the PLC controller. The driver of the longitudinal movement motor 10 is connected to the Y2 and Y3 pins of the PLC controller. The driver of the transverse movement motor 26 is connected to the Y4 and Y5 pins of the PLC controller. The cycle start SB1 is connected to the X0 pin. The cycle stop SB2 is connected to the X1 pin. The left limit SQ1 is connected to the X2 pin. The right limit SQ2 is connected to the X3 pin. The front limit SQ3 is connected to the X4 pin. The rear limit SQ4 is connected to the X5 pin. The manual left shift SB3 is connected to the X6 pin. The manual right shift SB4 is connected to the X7 pin. The manual forward shift SB5 is connected to the X10 pin. The manual backward shift SB6 is connected to the X11 pin. The above switches share the COM pin. It should be noted that the front, rear, left, and right directions are determined by Figure 3 As shown in Figure 3 , the direction where the first bracket 23 is located is the left, the direction where the second bracket 32 is located is the right, the direction where the wire winding drum 14 is located is the rear, and the direction where the welding torch 29 is located is the front. During welding, the first welding point is completed manually, and the rest are welded automatically. The steel reinforcement cage 25 rotates forward, the spiral reinforcement 252 is wound counterclockwise, the longitudinal movement seat 7 moves to the right, and the transverse movement seat 3 moves forward. The three cooperate and just move to the next welding point until welding is completed. Then, the welded steel reinforcement cage 25 is removed, and the rolling welding machine is reset. The entire rolling welding machine for the steel reinforcement cage 25 adopts a numerically controlled lathe structure and is controlled by a PLC, with great flexibility.

[0049] The present invention also provides a welding method for the steel reinforcement cage 25, including the following steps:

[0050] Support both ends of the main reinforcement 251 of the steel reinforcement cage 25 on the first bracket 23 and the second bracket 32 respectively, and connect the steel reinforcement cage 25 to the rotational drive mechanism;

[0051] Use the wire winding drum 14 on one side of the steel reinforcement cage 25 to provide the spiral reinforcement 252, and weld the starting head of the spiral reinforcement 252 to the main reinforcement 251;

[0052] Drive the steel reinforcement cage 25 to rotate by using the rotational drive mechanism. At the same time, longitudinally move the welding torch 29 located on the other side of the steel reinforcement cage 25, and align the welding torch 29 with the welding point of the main reinforcement 251 and the spiral reinforcement 252 for welding;

[0053] After welding is completed, disassemble the second bracket 32, remove the steel reinforcement cage 25 from the bracket, reset the welding torch 29, and the welding process ends.

[0054] Embodiment 1:

[0055] A steel cage 25 of a telegraph pole, with a large end diameter D = 400 mm, a small end diameter d = 200 mm, a length = 10000 mm, a number of 12, a spacing of 200, a time interval of 2S, the main reinforcement 251 has a diameter of 20 mm, and the spiral reinforcement 252 has a diameter of 8 mm and a length of 80 meters.

[0056] Main motion design: Mi = FD / 2 + μmgD / 2. Taking i = 20, D = 0.4, μ = 0.005, m = 400 kg, we get M = 0.8 Nm. Select a stepper motor 110BC380 with a torque of 5.5 Nm and a step angle of 0.75°.

[0057] Among them, M is the torque of the main motor; i is the reduction ratio; F is the force for winding the spiral reinforcement; μ is the friction coefficient; m is the total mass of the main reinforcement 251.

[0058] Longitudinal motion design: M 纵 = μ 纵 m 纵 gd 主动轮 = 0.1 * 40 * 10 * 0.15 = 6 Nm. Select a stepper motor 86BYG2500N - 0501 with a torque of 7.5 Nm and a step angle of 1.8°.

[0059] Among them, M 纵 is the torque of the longitudinal movement motor 10; μ 纵 is the friction coefficient of the longitudinal movement mechanism; m 纵 is the total mass of the longitudinal movement mechanism, the transverse movement mechanism, the welding torch 29, the wire winding drum 14 and the spiral reinforcement 252; d 主动轮 is the diameter of the driving wheel 12 of the longitudinal movement mechanism.

[0060] Transverse motion design: M 横 = 5 Nm. Select a stepper motor 110BC380 with a torque of 5.5 Nm and a step angle of 0.75°.

[0061] Example two:

[0062] Step 1: First, pass the main reinforcement 251 between the first chuck 13 and the second chuck 31, fix the second chuck 31, wind the spiral reinforcement 252 around the wire winding drum 14, let one end pass through the guide bar seat 15, and wind it around the main reinforcement 251 of the steel cage 25, and manually spot - weld the first point.

[0063] Step 2: Press the power switch to start the PLC control system.

[0064] Step 3: Manually move the welding torch 29 to the starting position, which is on the left side of the steel cage 25, and the nozzle is aligned with the first weld point.

[0065] Step 4: Press the cycle start button on the control panel of the butt welder to start the working cycle. The control panel is installed on the control cabinet, which is located beside the butt welder body. There are start, stop, cycle, manual left shift, manual right shift, manual forward shift, and manual backward shift buttons on the control panel. Inside the control cabinet, there are a PLC, a rotary motor 1 driver, a longitudinal movement motor 10 driver, a transverse movement motor 26 driver, a power supply, etc.

[0066] Step 5: The PLC controller controls the angular displacement, angular velocity, and steering of the rotary motor 1, the longitudinal movement motor 10, and the transverse movement motor 26. The output terminals of the PLC are respectively connected to the three drivers, and then respectively connected to the rotary motor 1, the longitudinal movement motor 10, and the transverse movement motor 26. The rotary motor 1 drives the steel reinforcement cage 25 to rotate, the longitudinal movement motor 10 drives the welding torch 29 and the wire winding drum 14 to move longitudinally, and the transverse movement motor 26 drives the welding torch 29 to move transversely. The rotation of the steel reinforcement cage 25, the longitudinal movement of the welding torch 29, and the transverse movement of the welding torch 29 move coordinately in proportion, moving from one node to the next node, and the welding torch 29 spot-welds once until the cycle ends.

[0067] Step 6: Loosen the second chuck 31, lift away the welded steel reinforcement cage 25, and reset the welding torch 29.

[0068] Example: The steel reinforcement cage 25 rotates 1 revolution, moves longitudinally 200 mm, and moves transversely 2 mm, and the number of cycles is 600. When converting between two weld points, the rotary motor 1 rotates 333 pulses, the longitudinal movement motor 10 rotates 7074 pulses, and the transverse movement motor 26 rotates 80 pulses, which are synchronously completed within 2S. An FP-XC38AT Panasonic PLC can be used.

[0069] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A steel cage rolling welding machine, characterized in that: It includes a longitudinal guide rail, brackets arranged at both ends of the longitudinal guide rail, and a rotation driving mechanism mounted on the brackets. The brackets are used to support the steel reinforcement cage, the rotation driving mechanism is drivingly connected to the steel reinforcement cage, a longitudinal movement seat is slidably arranged between the two brackets on the longitudinal guide rail, the longitudinal movement seat is connected with a longitudinal movement driving mechanism, a wire winding roller and a welding torch are respectively arranged on both sides of the steel reinforcement cage on the longitudinal movement seat. The wire winding roller is used to output the spiral bar to be wound around the main bars of the steel reinforcement cage, and the welding torch is used to align and weld the welding points of the bar and the main bars; A floating support is arranged on the longitudinal movement seat. The floating support includes a cylinder body, a compression spring arranged in the cylinder body, a piston abutted against the compression spring and extending out of the cylinder body, and a support plate connected to the top end of the piston. The support plate abuts against the bottom of the steel reinforcement cage; The compression amount of the compression spring is greater than half of the diameter difference between the large end and the small end of the steel reinforcement cage.

2. The steel cage rolling welding machine according to claim 1, wherein: At least one of the brackets is movably arranged on the longitudinal guide rail for adjusting the distance between the two brackets.

3. The steel cage rolling welding machine according to claim 1 or 2, characterized in that: It includes a first chuck and a second chuck. Fixing grooves for fixing the main bars are respectively arranged on the first chuck and the second chuck. The diameter of the steel reinforcement cage defined at the first chuck is greater than the diameter of the steel reinforcement cage defined at the second chuck.

4. The steel reinforcement cage rolling welding machine according to claim 3, characterized in that: The rotation driving mechanism includes a rotary motor and a second coupling connected to the rotary motor. The second coupling is connected to the first chuck.

5. The steel reinforcement cage rolling welding machine according to claim 4, characterized in that: The welding torch is connected to the longitudinal movement seat through a transverse movement seat. A guide rod and a lead screw are arranged in parallel on the longitudinal movement seat. A nut threadedly connected to the lead screw and a guide sleeve slidably connected to the guide rod are arranged at the bottom of the transverse movement seat. The lead screw is connected with a transverse movement driving mechanism.

6. The steel reinforcement cage rolling welding machine according to claim 5, characterized in that: The transverse movement driving mechanism includes a transverse movement motor and a third coupling connected to the transverse movement motor. The third coupling is connected with the lead screw.

7. The steel cage rolling welding machine according to claim 6, wherein: The longitudinal movement driving mechanism includes a driving wheel and a driven wheel arranged at both ends of the longitudinal guide rail, and a toothed belt sleeved on the driving wheel and the driven wheel. The toothed belt is connected to the longitudinal movement seat through a connecting plate. The driving wheel is connected with a longitudinal movement motor through a first coupling.

8. The steel cage rolling welding machine according to claim 7, characterized in that: It includes a PLC controller. The rotary motor, the transverse movement motor and the longitudinal movement motor are respectively electrically connected to the PLC controller. The PLC controller controls the rotary motor, the transverse movement motor and the longitudinal movement motor in a linkage manner.

9. A method for welding a steel reinforcement cage, characterized in that, Applying the steel reinforcement cage rolling welding machine according to any one of claims 1-8, it includes the following contents: Support the main bars of the steel reinforcement cage on the brackets and connect the rotation driving mechanism; Use the wire winding roller on one side of the steel reinforcement cage to provide the bar, and weld the starting head of the bar on the main bars; Rotate the steel reinforcement cage, longitudinally move the welding torch on the other side of the steel reinforcement cage, and align the welding torch with the welding points of the main bars and the bar for welding; After welding is completed, remove the steel reinforcement cage from the brackets, and the welding torch returns to its original position.

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