A steel bar welding automated production system and production method

Abstract

The present invention discloses an automated production system and method for steel bar welding, which comprises a steel bar double-head milling device, a steel bar butt welding machine, a feeding and bending integrated device, a bending hoop device, a transfer device and an automatic welding device which are sequentially arranged. The steel bar processing of the present invention is divided into five processes: steel bar end trimming, bending, end bending hoop, material turning and welding, which realizes the automated processing and production of steel bars from raw materials to steel bar cages. The present invention can meet the increasingly diversified needs of current steel bar cages, replace manual operations, improve production efficiency, shorten processing cycles, and ensure product production quality at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, in particular to an automated production system and method for steel bar welding. Background Art

[0002] At present, with the increase of various beautiful and peculiarly shaped buildings, the requirements for steel cages inside buildings are also increasing. The previous welded cages with simple structure and single mechanical function are difficult to meet the modern diversified construction needs. Therefore, it is more and more important to produce steel cage welding devices with fast, efficient and stable quality.

[0003] The traditional way of processing steel cages is generally to use simple tooling to process the various steel bars that make up the cage, and then weld or tie the steel bars together. This manual method is extremely inefficient, and the quality of the processed steel bars is poor, and the processing quality is difficult to unify. Summary of the invention

[0004] The purpose of the present invention is to provide an automated steel bar welding production line to replace manual work and improve work efficiency and quality, and also to provide a steel bar production method based on the automated steel bar welding production line.

[0005] The technical solution adopted by the present invention is:

[0006] An automated production system for steel bar welding comprises a steel bar double-head milling device, a steel bar butt welding machine, an integrated feeding and bending device, a bending hoop device, a transfer device and an automatic welding device which are arranged in sequence. During the processing, the steel bar raw materials are flattened at both ends by the steel bar double-head milling device, and then two steel bars are welded into one by the butt welding machine, and the straight steel bars are continuously bent by the steel bar bending device. After cutting into individual units, the ends of the individual units are bent by the bending hoop device and then transported to the material storage area by the transfer device. After the staff assembles the steel bars, they are welded at the welding points by the automatic welding device.

[0007] As a further optimization, the double-headed milling device for steel bars of the present invention includes a supporting device and two groups of milling devices respectively arranged at both ends of the supporting device, the supporting device is used to place steel bars, and the supporting device is provided with at least one group of feeding devices for driving the steel bars to move along their length direction, the supporting device includes at least one group of placement grooves for placing steel bars and a plurality of support frames for supporting the placement grooves, the placement grooves are slidably arranged on the support frames by pushing cylinders, the feeding device is arranged at one end of the supporting device through the support frames, and the feeding device is also slidably arranged on the support frames by the pushing cylinders, and the sliding directions of the placement grooves and the feeding devices are perpendicular to the feeding direction of the steel bars.

[0008] As a further optimization, the feeding device of the present invention includes a fixed frame, a driving wheel and at least one group of clamping wheels arranged on the upper part of the driving wheel. When in operation, the steel bars pass between the driving wheel and the clamping wheel. The driving wheel is connected to a driving motor. Each group of clamping wheels is slidably arranged on the fixed frame through a sliding frame. The clamping wheel is rotatably connected to the sliding frame. A clamping cylinder is arranged between the sliding frame and the fixed frame. The piston rod of the clamping cylinder is fixedly connected to the sliding frame. When the clamping cylinder is actuated, the clamping wheel has two states: clamping the steel bars and detaching from the steel bars.

[0009] As a further optimization, each group of the milling devices of the present invention includes a stand, a clamping assembly, a baffle and a milling assembly, the baffle and the milling assembly are both arranged on the stand through a first pushing assembly, the clamping assembly is slidably arranged on the stand through a second pushing assembly, and when the second pushing assembly is in the process of moving, the clamping device has two states: facing the baffle and staggered from the baffle, and when in a working state, the steel bar is fixed by the clamping assembly, and the end of the steel bar is against the vertical surface of the baffle, and the milling assembly mills the end of the steel bar under the drive of the first pushing assembly; the clamping assembly includes a clamping frame, a clamping cylinder and a clamping block, the clamping frame is slidably arranged on the stand through the second pushing assembly, the clamping cylinder is arranged on the clamping frame, and the piston rod of the clamping cylinder is fixedly connected to the clamping block, and when in a working state, the steel bar passes between the clamping block and the clamping frame, and during the action of the clamping cylinder, the clamping block is in a state of clamping the steel bar and a state of being detached from the steel bar.

[0010] As a further optimization, the integrated feeding and bending device of the present invention includes a frame and a feeding device and a bending device arranged on the frame in sequence, the bending device includes a following component, an intermediate bending component and a fixed component arranged in sequence along the length direction of the steel bar, the following component and the intermediate bending component are both slidably connected to the frame, the fixed component is fixedly arranged on the frame, a reset spring is arranged between the fixed component and the following component and the intermediate bending component, a squeezing cylinder and a squeezing block for pressing the steel bars are arranged on the fixed component and the following component, the cylinder seat of the squeezing cylinder is hinged to the lower side of the corresponding component, the squeezing block passes through the corresponding component, the piston rod of the squeezing cylinder is hinged to the lower end of the squeezing block, the upper end of the squeezing block has two states of squeezing steel bars and releasing steel bars, the intermediate bending component is provided with an oil cylinder for bending steel bars, and a bending head is fixedly connected to the piston rod of the oil cylinder.

[0011] As a further optimization, the feeding device of the present invention includes a clamping assembly and a power assembly, the clamping assembly is slidably arranged on the frame through a first slide, the clamping assembly includes a fixed frame and a downward pressure cylinder fixedly arranged on the fixed frame, a downward pressure block is arranged on the downward pressure cylinder, when in a working state, the steel bar passes through between the clamping block and the fixed frame, and the downward pressure cylinder is in a state of clamping the steel bar and releasing the steel bar during the action of the downward pressure cylinder, the power assembly includes a stepping motor, a lead screw and a nut, the lead screw is connected to the output shaft of the stepping motor, the nut is fixedly connected to the first slide, and the lead screw is threadedly connected to the nut.

[0012] As a further optimization, the hoop bending device of the present invention includes a cutting mechanism, a discharging mechanism, a first hoop bending machine and a second hoop bending machine. The first hoop bending machine and the second hoop bending machine are arranged side by side. The first hoop bending machine and the second hoop bending machine both include a machine platform, a hoop bending disk, a pin pulling assembly and a driving assembly for driving the hoop bending disk to rotate. The hoop bending disk includes a turntable, a center pin arranged at the center of the turntable and a hoop bending pin deviating from the center of the turntable. The turntable is connected to the driving assembly, and the center pin is connected to the pin pulling assembly. During the action of the pin pulling assembly, the center pin is inserted into the turntable and detached from the turntable. When in working state, the end of the steel bar is located between the center pin and the hoop bending pin.

[0013] As a further optimization, the pin pulling assembly of the present invention includes a pin pulling rack and a pin pulling cylinder. The pin pulling rack is arranged on the machine platform, the cylinder seat of the pin pulling cylinder is fixedly connected to the pin pulling rack, and the pin pulling cylinder is located on the upper side of the bending hoop disk, and the piston rod of the pin pulling cylinder is fixedly connected to the center pin.

[0014] As a further optimization, the transfer device of the present invention includes a discharging roller conveyor and a storage table arranged in parallel with the discharging roller conveyor, the discharging roller conveyor is provided with a flipping device, the flipping device includes at least one group of flipping components, each group of the flipping components includes a flipping plate and a first driving device for driving the flipping plate to rise and fall and a second driving device for driving the upper edge of the flipping plate to tilt toward the storage table, the first driving device includes a first lifting cylinder and a second lifting cylinder, the piston rod of the first lifting cylinder is hinged at one end of the flipping plate close to the storage table, the piston rod of the second lifting cylinder is hinged at one end of the flipping plate away from the storage table, when the flipping plate is in a low position, the first lifting cylinder and the second lifting cylinder Both lifting cylinders are in a shortened state. When the flip plate is in a high position, the first lifting cylinder and the second lifting cylinder are in an extended state. The second driving device includes a flip cylinder, a base and a flip connecting rod. The second lifting cylinder is slidably arranged on the base along the up and down directions. The flip connecting rod includes a first connecting rod and a second connecting rod. One end of the first connecting rod and the second connecting rod is hinged. One end of the first connecting rod is hinged on the cylinder seat of the second lifting cylinder, and the other end of the second connecting rod is hinged on the bottom of the base. The piston rod of the flip cylinder is hinged at the hinge between the first connecting rod and the second connecting rod. When the flip cylinder is in motion, the angle between the first connecting rod and the second connecting rod increases or decreases.

[0015] As a further optimization, the automatic welding device of the present invention includes a welding tool frame, a welding robot and a welding base for carrying the welding robot. The welding robot is slidably arranged on the welding base through a guide rail, and a servo motor for driving the welding robot to slide is arranged between the welding robot and the welding base. A gear is arranged on the servo motor, and a rack arranged parallel to the guide rail is arranged on the welding base. The gear on the servo motor is meshed and connected with the rack, and a plurality of horizontal quick clamps are arranged on the welding tool frame.

[0016] The present invention also provides a method for producing a steel cage, using any one of the above-mentioned steel bar welding automated production systems, comprising the following steps:

[0017] S1. Flatten the ends of the steel bar raw material by a double-head milling device;

[0018] S2, welding the two flattened steel bars in front and back into one piece by a butt welding machine;

[0019] S3, feeding the welded steel bars into a single piece into a bending device in sequence according to the length through a feeding device for continuous bending;

[0020] S4, cutting the bent steel bars into individual pieces, and bending the ends of the individual steel bars by means of a bending device;

[0021] S5, sending the steel bars after bending the hoops to the discharging roller through the discharging mechanism, and automatically turning the steel bars after bending the hoops to the storage table for standby through the turning device;

[0022] S6. After placing the raw materials required for the steel cage together, the welding points are automatically welded by the automatic welding robot.

[0023] The present invention has the following advantages:

[0024] 1. The steel bar processing of the present invention is divided into five processes: steel bar trimming, bending, end bending, material turning, and welding, which realizes the automated processing and production of steel bars from raw materials to steel bar cages. The present invention can meet the increasingly diversified needs of steel bar cages, replace manual operations, improve production efficiency, shorten processing cycles, and ensure product production quality;

[0025] 2. The present invention uses automated processing to replace manual bending, welding and other laborious processes with low safety factors, mechanical repetition and lifting, which not only reduces the occupation of human resources, but also ensures the safety of operators;

[0026] 3. The present invention avoids the generation of tailings and reduces the waste of raw materials by welding a plurality of steel bars into one body and feeding them in a fixed length. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of 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 creative work.

[0028] The present invention is further described below in conjunction with the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is an enlarged structural schematic diagram of a supporting device in a double-headed steel bar milling device;

[0031] Figure 3 It is an enlarged structural schematic diagram of a feeding device in a double-headed steel bar milling device;

[0032] Figure 4 It is an enlarged structural schematic diagram of a milling device in a double-headed steel bar milling device;

[0033] Figure 5 It is an enlarged structural schematic diagram of a steel bar bending device;

[0034] Figure 6It is an enlarged structural schematic diagram of the bending hoop device;

[0035] Figure 7 It is a state diagram of the hoop bending process;

[0036] Figure 8 It is a schematic diagram of the state of the turning component in the transfer device before turning over;

[0037] Fig. 9 It is a schematic diagram of the state of the flip component in the transfer device after flipping.

[0038] Among them: 1. Milling device, 2. Feeding device, 3. Support device, 4. Steel bar welding machine, 5. Feeding device, 6. Steel bar bending device, 7. Cutting mechanism, 8. First hoop bending machine, 9. Second hoop bending machine, 10. Discharging mechanism, 11. Discharging roller, 12. Turning device, 13. Storage table, 14. Welding base, 15. Welding tool rack, 16. Welding robot, 17. Angle steel, 18. Steel bar, 1-1. Stand, 1-2. Clamping frame, 1-3. Clamping block, 1-4. Clamping cylinder, 1-5. Stop table, 1-6, milling head, 1-7, stepper motor, 1-8, second drive motor, 1-9, transmission, 1-10, first slide, 1-11, lead screw, 1-12, first slide rail, 1-13, chip collecting groove, 2-1, first drive motor, 2-2, reducer, 2-3, clamping cylinder, 2-4, fixed frame, 2-5, sliding frame, 2-6, clamping wheel, 2-7, driving wheel, 3-1, push cylinder, 3-2, second slide, 3-3, second slide rail, 3-4, support frame, 3-5, V-type Support block, 5-1, stepper motor, 5-2, first slide, 5-3, guide rail, 5-4, lead screw, 5-5, guide block, 5-6, fixed frame, 5-7, press cylinder, 6-1, second slide, 6-2, squeeze cylinder, 6-3, third slide, 6-4, fixed table, 6-5, guide rod, 6-6, connecting rod, 6-7, cylinder, 6-8, bending head, 6-9, extrusion block, 8-1, pin puller, 8-2, pin puller cylinder, 8-3, bending hoop pin, 8-4, center pin, 8-5, turntable, 8- 6. Fixed guide block, 10-1. Guide rod, 10-2. Pressing cylinder, 10-3. Slide rail, 10-4. Traction cylinder, 10-5. Discharging rack, 10-6. Guide sleeve, 11-1. Bracket, 11-2. Roller, 12-1. Turning plate, 12-2. Coordinating rod, 12-3. First lifting cylinder, 12-4. Second lifting cylinder, 12-5. Base, 12-6. First connecting rod, 12-7. Second connecting rod, 12-8. Bottom plate, 12-9. Turning cylinder, 12-10. Fixed seat. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments may be combined with each other.

[0040] It should be understood that in the description of the embodiments of the present invention, the words "first", "second", etc. are only used for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order. The "plurality" in the embodiments of the present invention refers to two or more.

[0041] The "and / or" in the embodiments of the present invention is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, B exists alone, and A and B exist at the same time. In addition, the character " / " in this document generally indicates that the associated objects before and after are in an "or" relationship.

[0042] This embodiment provides a steel bar welding automation production system. Figure 1 As shown, it includes a steel bar double-head milling device 1, a steel bar butt welding machine 3, a feeding and bending integrated device 6, a bending hoop device, a transfer device and an automatic welding device which are arranged in sequence. During the processing, the steel bar raw material is flattened at both ends by the steel bar double-head milling device 1, and then the two steel bars are welded into one by the steel bar butt welding machine 4. The straight steel bars are continuously bent by the steel bar bending device 6, and after being cut into individual units, the ends of the individual steel bars are bent by the bending hoop device and then transported to the storage platform 13 by the transfer device. After the staff combines the steel bars, they are welded at the welding points by the automatic welding device.

[0043] like Figure 2 and Figure 3As shown, the steel bar double-head milling device described in this embodiment includes a support device 3 and two groups of milling devices 1 respectively arranged at both ends of the support device 3, the support device 3 includes at least one group of placement grooves for placing steel bars and a plurality of support frames 3-4 for supporting the placement grooves, the placement grooves are preferably selected as angles, each angle can be corresponding to a steel bar, and three angles are arranged in this embodiment, and a V-shaped support block 3-5 for supporting the angle steel 17 is arranged on the support frame 3-4, and a V-shaped notch corresponding to the number of the angle steel 17 is arranged on the V-shaped support block 3-5, and the angle steel 17 is provided with a plurality of V-shaped notches corresponding to the number of the angle steel 17. 7 is fixed on the corresponding V-shaped notch of the V-shaped support block 3-5, and the angle steel 17 is slidably set on the support frame 3-4 through the second pushing component. The second pushing component includes a second slide plate 3-2, a second slide rail 3-3 and a push cylinder 3-1. The piston rod of the push cylinder 3-1 is fixedly connected to the second slide plate 3-2. The moving direction of the piston rod of the push cylinder 3-1 is perpendicular to the feeding direction of the steel bar. The V-shaped support block 3-5 is set on the second slide plate 3-2, and the second slide rail 3-3 and the cylinder seat of the push cylinder 3-1 are fixedly connected to the support frame 3-4. One end of the support device 3 is provided with a feeding device 2 for driving the steel bar to move along its length direction, such as Figure 3 As shown, in order to ensure that the feeding device 2 and the angle steel 17 move in a consistent manner, the feeding device 2 is also slidably arranged on the corresponding support frame 3-4 through a second pushing assembly. The feeding device includes a fixed frame 2-4, a driving wheel 2-7 and at least one group of clamping wheels 2-6 arranged on the upper part of the driving wheel 2-7. In the figure of this embodiment, three groups of clamping wheels 2-6 are arranged corresponding to the number of angle steels 17. When the steel bar passes between the driving wheel 2-7 and the clamping wheel 2-6 during operation, the driving wheel 2-7 is connected to a first driving assembly, and the first driving assembly includes a first driving motor 2-1 with a reducer 2-2. The output shaft of the first driving motor 2-1 is coaxially connected to the driving wheel 2-7. Each group of clamping wheels 2-6 is connected to the driving wheel 2-7 through a sliding frame 2 -5 is slidably connected with the fixed frame 2-4, and a clamping cylinder 2-3 is arranged between each group of sliding frames 2-5 and the fixed frame 2-4, the clamping wheel 2-6 is rotatably connected with the sliding frame 2-5, the cylinder seat of the clamping cylinder 2-3 is fixedly connected to the fixed frame 2-4, and the piston rod of the clamping cylinder 2-3 is fixedly connected to the sliding frame 2-5. When the clamping cylinder 2-3 is actuated, the clamping wheel 2-6 is in a state of clamping the steel bars and a state of being separated from the steel bars. When in the working state, the steel bars are placed in the angle steel 17, and it is ensured that the steel bars extend into the feeding device 2, the steel bars are clamped by the clamping wheel 2-6, and the steel bars are driven to approach the two groups of milling devices 1 respectively through the active wheel 2-7, and the ends of the steel bars are milled respectively.

[0044] like Figure 4As shown, each group of the milling devices in this embodiment includes a stand 1-1, a clamping assembly, a baffle 1-5 and a milling assembly. The baffle 1-5 and the milling assembly are both arranged on the stand 1-1 through a first pushing assembly, and the sliding direction is perpendicular to the feeding direction of the steel bar. The first pushing assembly includes a first slide 1-10, a first slide rail 1-12, a lead screw 1-11, a nut and a stepping motor 1-7. The milling assembly and the baffle 1-5 are fixedly arranged on the first slide 1-10. The first slide 1-10 is slidably arranged on the first slide rail 1-12 through a first slide. The lead screw 1-11 is coaxially connected to the stepping motor 1-7. The lead screw 1-11 is screwed to the nut, and the nut is fixedly connected to the first slide 1-10. In order to ensure that the clamping device In line with the action of the angle steel 17, the clamping device is also slidably arranged on the platform 1-1 through the second pushing assembly. When the propulsion cylinder 3-1 is in action, the clamping assembly has two states: facing the baffle 1-1 and offset from the baffle 1-1. The clamping assembly includes a clamping frame 1-2, a clamping cylinder 1-4 and a clamping block 1-3. The clamping frame 1-2 is fixedly connected to the second slide plate 3-2 of the second pushing assembly. A V-groove corresponding to the number of angle steels 17 is arranged on the inner lower end surface of the clamping frame 1-2. The clamping cylinder 1-4 is arranged on the clamping frame 1-2, and the piston rod of the clamping cylinder 1-4 is fixedly connected to the clamping block 1-3. When in working state, the steel bar passes between the clamping block 1-3 and the clamping frame 1-2. The milling assembly includes a second drive motor 1-8 and a transmission 1-9, a milling head 1-6 is fixedly arranged on the output shaft of the transmission 1-9, and the end of the milling head 1-6 protrudes from the vertical surface on the stop 1-5 for limiting the position of the steel bar. When in working state, the steel bar is fixed by the clamping assembly, and the end of the steel bar is against the stop 1-5, and the milling assembly moves the end of the steel bar through the second drive assembly to mill. In order to facilitate the cleaning of milling chips, a chip collecting groove 1-13 is arranged on the stand 1-1 of this embodiment, and the chip collecting groove 1-13 is located below the milling head 1-6, and the chip collecting groove 1-13 is arranged along the moving direction of the milling head 1-6. During the mobile milling process of the milling assembly, the milling chips directly fall into the chip collecting groove 1-13, which is convenient for cleaning. For the safe use of the milling device, a shield is arranged on the outside of the milling device of this embodiment, and an opening for the steel bar to pass through is arranged on the shield, and the shield is used for safety protection.

[0045] The steel bar butt welding machine described in this embodiment adopts the butt welding machine in the prior art, and the tail end of the previous steel bar and the head end of the next steel bar enter the butt welding machine and are welded into one.

[0046] like Figure 5As shown, the feeding and bending device described in this embodiment includes a frame and a feeding device and a bending device arranged on the frame in sequence. The feeding device transmits the steel bars to the bending device for a set length, and the bending device presses the straight steel bars into a bent shape. The feeding device described in this embodiment includes a clamping assembly and a power assembly. The clamping assembly is slidably arranged on the frame along the conveying direction of the steel bar 18 through the first slide 5-2. The frame is provided with a guide rail 5-3. The first slide 5-2 is slidably arranged on the guide rail 5-3 through a slider. The clamping assembly includes a fixed frame 5-6 and a downward pressure cylinder 5-7 fixedly arranged on the fixed frame 5-6. The fixed frame 5-6 is fixedly connected to the first slide 5-2. A downward pressure block is arranged on the downward pressure cylinder 5-7. A guide block 5-5 is arranged on the front side of the fixed frame 7 on the first slide 5-2. A guide hole is arranged on the guide block 5-5. When in working state, the steel bar 18 first passes through the guide hole of the guide block 5-5, and then passes through between the downward pressure block and the fixed frame 5-6. In the process of the action of the downward pressure cylinder 5-7, the downward pressure block has two states: clamping the steel bar 18 and releasing the steel bar 18. The power assembly includes a stepper motor 5-1, a lead screw 5-4 and a nut. The lead screw 5-4 is connected to the output shaft of the stepper motor 5-1, and the nut is fixedly connected to the first slide 5-2, and the lead screw 5-4 is threadedly connected to the nut. When the stepper motor 5-1 is rotating, the first slide 5-2 slides along the guide rail 5-3 on the frame.

[0047] The bending device described in this embodiment includes a following component, an intermediate bending component and a fixed component which are sequentially arranged along the length direction of the steel bar 18, the fixed component includes a fixed table 6-4, the following component includes a second slide 6-1, the intermediate bending component includes a third slide 6-3, the fixed table 6-4 is fixedly connected to the frame, the second slide 6-1 and the third slide 6-3 are slidably arranged on the guide rail 5-3 of the frame, a connecting rod 6-6 is arranged between the fixed table 6-4 and the second slide 6-1 and the third slide 6-3, the two connecting rods 6-6 are hinged to the third slide 6-3, and the other ends of the two connecting rods 6-6 are respectively connected to the fixed table 6-4 and the second slide 6-1 through long holes. A return spring is arranged between the fixed platform 6-4 and the second slide 6-1 and the third slide 6-3. An extrusion mechanism for compressing the steel bars is arranged on the fixed platform 6-4 and the second slide 6-1. The extrusion mechanism includes an extrusion cylinder 6-2 and an extrusion block 6-9. The cylinder seat of the extrusion cylinder 6-2 on the second slide 6-1 is hinged to the lower side of the second slide 6-1. The extrusion block 6-9 on the second slide 6-1 passes through the second slide 6-1 from bottom to top, and the middle part of the extrusion block 6-9 is hinged to the second slide 6-1. The piston rod of the extrusion cylinder 6-2 is hinged to the lower end of the extrusion block 6-9. When in working state, the upper end of the extrusion block 6-9 has two states of compressing the steel bars 18 and releasing the steel bars 18. The steel bar extrusion mechanism on the fixed platform 6-4 has the same structure as that on the second slide 6-1. In order to bend the steel bar 18, a pushing mechanism is arranged on the third slide 6-3, and the pushing mechanism includes a cylinder 6-7 and a bending head 6-8. The cylinder 6-7 is fixedly connected to the third slide 6-3, and the bending head 6-8 is fixedly connected to the piston rod of the cylinder 6-7. The end of the bending head 6-8 is wedge-shaped, and the extension direction of the piston rod of the cylinder 6-7 is perpendicular to the length direction of the steel bar 18.

[0048] In this embodiment, two limit folding rods 13 are further arranged between the fixed platform 14 and the second slide 11. The two limit folding rods 13 are hinged, and the other ends of the two limit folding rods 13 are respectively hinged to the fixed platform 14 and the second slide 11. According to the selection of the length of the limit folding rods 13, steel bars of different angles can be bent.

[0049] The bending hoop device described in this embodiment is used to bend the two ends of the steel bars bent in the previous processing step. Figure 6 and Figure 7As shown, it includes a cutting mechanism 7, a discharging mechanism 10, a first hoop bending machine 8 and a second hoop bending machine 9. The first hoop bending machine 8 and the second hoop bending machine 9 are arranged side by side. The first hoop bending machine 9 and the second hoop bending machine 9 both include a machine platform, a hoop bending disk, a pin pulling assembly and a driving assembly for driving the hoop bending disk to rotate. The hoop bending disk includes a turntable 8-5, a center pin 8-4 arranged at the center of the turntable 8-5 and a hoop bending pin 8-3 deviating from the center of the turntable 8-5. The driving assembly includes a driving motor and a reducer. The input shaft of the reducer is fixedly connected to the output shaft of the driving motor, and the turntable 8-5 rotates coaxially with the reducer. In order to prevent the center pin 8-4 from interfering with the passage of the bent steel bar 18, the pin pulling assembly is used to pull the center pin 8-4 away from the turntable 8-5 to ensure that the bent steel bar 18 passes through the hoop bending machine. The pin pulling assembly includes a pin pulling frame 8-1 and a pin pulling cylinder 8-2. The pin pulling frame 8-1 is set on the machine platform, and the cylinder seat of the pin pulling cylinder 8-2 is fixedly connected to the pin pulling frame 8-1, and the pin pulling cylinder 8-2 is located on the upper side of the bending hoop disk. The piston rod of the pin pulling cylinder 8-2 is fixedly connected to the center pin 8-4. During the action of the pin pulling cylinder 8-2, the center pin 8-4 is inserted into the turntable 8-5 and detached from the turntable 8-5. When in working state, the end of the bent steel bar 18 is located between the center pin 8-4 and the bending hoop pin 8-3.

[0050] In this embodiment, the first hoop bending machine 8 and the second hoop bending machine 9 are also provided with a fixed guide block 8-6, which is fixedly connected to the machine platform and is located on the side of the hoop bending pin 8-3 away from the bending direction. The fixed guide block 8-6 is mainly used to limit the deformation direction of the hoop part of the bent steel bar 18 during the hoop bending process.

[0051] Furthermore, the cutting mechanism 7 described in this embodiment is used to split and bend steel bars. The cutting mechanism 7 includes a cutting frame, a fixed knife plate fixedly arranged at the bottom of the cutting frame, a movable knife plate slidably arranged at the top of the cutting frame, and a driving cylinder for driving the movable knife plate to move. The cylinder seat of the driving cylinder is fixedly connected to the cutting frame, and the piston rod of the driving cylinder is fixedly connected to the movable knife plate. When the driving cylinder is in motion, the movable knife plate and the fixed knife plate are in a state of engagement and separation.

[0052] Furthermore, the discharging mechanism of this embodiment includes a clamping assembly and a traction assembly, the clamping assembly is slidably arranged on the machine platform, a slide rail 10-3 is arranged on the machine platform, the length direction of the slide rail 10-3 is along the conveying direction of the bent steel bar 18, the traction assembly is used to drive the clamping assembly to move, the clamping assembly includes a discharging rack 10-5, a clamping plate slidably arranged in the discharging rack 10-5 up and down, and a pressing cylinder 10-2 for driving the clamping plate to slide, the discharging rack 10-5 is slidably arranged on the slide rail 10-3 through a slider The cylinder seat of the pressing cylinder 10-2 is fixedly connected to the discharging rack 10-5, and the piston rod of the pressing cylinder 10-2 is fixedly connected to the clamping plate. In order to balance the clamping force of the clamping plate, the pressing cylinder 10-2 is arranged in the middle of the length direction of the clamping rack and the discharging rack 10-5, and the piston rod of the pressing cylinder 10-2 is connected to the middle of the clamping plate. Guide rods 10-1 are fixedly arranged at both ends of the clamping plate, and a guide sleeve 10-6 is correspondingly arranged on the discharging rack 10-5. The guide rod 10-1 is slidably arranged in the guide sleeve 10-6. The traction assembly includes a traction cylinder 10-4, the cylinder seat of the traction cylinder 10-4 is fixedly connected to the machine platform, and the piston rod of the traction cylinder 10-4 is fixedly connected to the discharging rack 10-5. During the operation of the traction cylinder 10-4, the discharging rack 10-5 slides along the slide rail 10-3.

[0053] The transfer device described in this embodiment is used to transfer the steel bars produced in the previous bending process to the storage platform 13, including a discharge roller 11 and a storage platform 13 arranged in parallel with the discharge roller 11, the discharge roller 11 includes a bracket 11-1 and a plurality of rollers 11-2 arranged at intervals on the bracket 11-1, and a flipping device 12 is arranged on the discharge roller 11, and the flipping device 12 includes a plurality of groups of flipping components, each group of the flipping components includes a flipping plate 12-1 and a first driving device for driving the flipping plate 12-1 to rise and fall, and a second driving device for driving the upper edge of the flipping plate to tilt toward the storage platform 13, the flipping plate 12-1 of each group of flipping components is located between two adjacent rollers 11-2, and when the flipping plate 12-1 is in the process of rising and falling, the flipping plate 12-1 passes through the space between the two adjacent rollers 11-2, such as Figure 8 As shown, when the turning plate 12-1 is in a low position, the upper edge of the turning plate 12-1 is lower than the upper rotating surface of the roller 1-2, as shown in FIG. Fig. 9 As shown, when the turning plate 12 - 1 is in a high position, the upper edge of the turning plate 12 - 1 is higher than the upper end surface of the discharge roller 11 and the upper end surface of the storage platform.

[0054] Specifically, the first driving device includes a first lifting cylinder 12-3 and a second lifting cylinder 12-4. The piston rod of the first lifting cylinder 12-3 is hinged at one end of the flip plate 12-1 close to the storage platform 13, and the piston rod of the second lifting cylinder 12-4 is hinged at one end of the flip plate 12-1 away from the storage platform 13. When the flip plate 12-1 is in a low position, the first lifting cylinder 12-3 and the second lifting cylinder 12-4 are both in a shortened state. When the flip plate 12-1 is in a high position, the first lifting cylinder 12-3 and the second lifting cylinder 12-4 are both in an extended state. The second driving device includes a flip cylinder 12-9, a base 12-5 and a flip connecting rod. The base 12-5 is set on the ground through a bottom plate 12-8. The second lifting cylinder 12-4 is slidably set on the base 12-5 along the up and down directions. The flip connecting rod includes a first connecting rod 12-6 and a second connecting rod 12-7. One end of the first connecting rod 12-6 and the second connecting rod 12-7 are hinged. One end of the first connecting rod 12-6 is hinged on the cylinder seat of the second lifting cylinder 12-4, and the other end of the second connecting rod 12-7 is hinged on the base 12 -5, the piston rod of the flip cylinder 12-9 is hinged at the hinge of the first connecting rod 12-6 and the second connecting rod 12-7, and the cylinder seat of the flip cylinder 12-9 is hinged on the bottom plate 12-8. When the piston rod of the flip cylinder 12-9 is in the process of extension, the angle between the first connecting rod 12-6 and the second connecting rod 12-7 becomes larger, and the height of the second lifting cylinder 12-4 increases. When the piston rod of the flip cylinder 12-9 is in the process of shortening, the angle between the first connecting rod 12-6 and the second connecting rod 12-7 becomes smaller, and the height of the second lifting cylinder 12-4 decreases.

[0055] Furthermore, in the present embodiment, two cooperative links are connected between the flip plates 12-1 of all the flip assemblies, which are a first cooperative link and a second cooperative link. The first cooperative link is connected to one end of all the flip plates 12-1 away from the material storage table 13, and the second cooperative link is connected to one end of all the flip plates 12-1 close to the material storage table 13. By connecting the flip plates 12-1 of all the flip assemblies through two cooperative links, the consistency of the movements of all the flip plates 12-1 can be achieved.

[0056] The middle and lower parts of the flip plate 5-1 of this embodiment are provided with interpenetrating notches, such as Fig. 9 As shown, when the flip plate 12-1 is in the upper position and its upper edge is inclined toward the storage platform 13, the notch is stuck on the edge of the bracket 11-1 close to the storage platform 13, and the end of the upper edge of the flip plate 12-1 close to the storage platform 13 extends out of the discharge roller 11, making it convenient for the bent steel bars to slide down along the upper edge of the flip plate 12-1 to the storage platform.

[0057] In this embodiment, affected by the height of the discharge roller 11 and the selected models of the first lifting cylinder 12-3 and the second lifting cylinder 12-4, the first lifting cylinder 12-3 is set on the bottom plate 12-8 through the fixed seat 12-10, and the fixed seat 12-10 plays a role of raising the height. The base 12-5 in the second drive device not only provides a motion guide for the second lifting cylinder 12-4, but also has a role of raising the height. Of course, when the height of the discharge roller 11 is set lower, the setting of the fixed seat 12-10 can be cancelled, and the setting length of the base 12-5 can be shortened accordingly.

[0058] The automatic welding device described in this embodiment includes a welding fixture frame 15, a welding robot 16 and a welding base 14 for carrying the welding robot 16. The welding robot 16 is slidably arranged on the welding base 14 through a guide rail, and a servo motor for driving the welding robot 16 to slide is arranged between the welding robot 16 and the welding base 14. The servo motor is provided with a gear, and the welding base 14 is provided with a rack arranged parallel to the guide rail. The gear on the servo motor is meshed and connected with the rack, and a plurality of horizontal quick clamps are arranged on the welding fixture frame 15. The welding robot 16 adopts a three-axis welding robot or a higher-axis welding robot in the prior art. The staff places the workpiece to be welded on the welding fixture frame 15 and presses it with a horizontal quick clamp. The welding robot 16 welds the welding point through a preset program and a visual recognition system.

[0059] Working principle: First process: flat head. When processing, place the steel bar in the angle steel 17, and ensure that one end of the steel bar 18 extends into the feeding device 2. At this time, all the pushing cylinders are in a contracted state, that is, the steel bar and the baffle 1-5 are in a staggered state. After the system is started, the pushing cylinder 3-1 of the second propulsion device is extended, and the steel bar and the baffle 1-5 are in a state of facing each other. The clamping cylinder 2-3 of the feeding device 2 pushes the clamping wheel 2-6 to clamp the steel bar. The first driving motor 2-1 drives the active wheel 2-7 to rotate, driving the steel bar to approach one of the milling devices 1 first. The ends of all the steel bars are against the baffle 1-5 of the milling device. The clamping cylinder 1-4 of the clamping device is activated to fix the steel bar. The milling assembly works and drives all the steel bars to be milled in turn through the stepper motor 1-7. The above process actions have a certain sequence, which can be stimulated by setting the interval dynamic time of each action component or by setting an induction sensor. After the steel bars 18 are milled, they are fed into the steel bar welding machine 4 to weld the ends of the multiple steel bars into one body.

[0060] The second process: bending. The steel bar 18 welded into one body passes through the guide block 5-5 and the clamping assembly. The clamping assembly clamps the steel bar 18. The stepper motor 5-1 rotates to drive the clamping assembly to move toward the direction close to the bending device until it moves to the set distance. The clamping assembly releases the steel bar 18. The fixed assembly and the following assembly on the bending device both clamp and fix the steel bar 19 through the squeezing device. The clamping assembly is reversed and returned to the initial position by the stepper motor 5-1. The oil cylinder 6-7 on the middle bending assembly moves to squeeze the steel bar 18 through the bending head 6-8. Due to the bending deformation of the steel bar 18, it can be seen from the triangle principle that in the process of the gradual bending of the steel bar 18, the following assembly and the middle bending assembly will slide toward the fixed assembly. After the bending is completed, the oil cylinder 6-7 is reset, and the following assembly and the middle bending assembly are reset by the reset spring. Repeat the above steps for continuous bending.

[0061] The third process: end bending. After the bending process, the straight bar steel bar is bent by the bending device, and then the bent steel bar enters the bending device. Figure 7 As shown, the head of the bent steel bar 18 passes through the first hoop bending machine 8 and enters the second hoop bending machine 9 for bending. At this time, the pin pulling cylinder 8-2 of the first hoop bending machine 8 pulls the center pin 8-4 away from the turntable 8-5, and the pin pulling cylinder of the second hoop bending machine 9 inserts the center pin into the turntable. After the head of the bent steel bar 18 passes through the second hoop bending machine 9 for bending, the second hoop bending machine 9 pulls up the center pin, and the feeding device at the bending device pushes the bent steel bar 18 to continue to move forward. At this time, the bent steel bar The head of 18 has entered the discharging mechanism of the hoop bending device. When it reaches the set length, the cutting mechanism 7 cuts the bent steel bar 18, and the tail of the bent steel bar 18 enters the first hoop bending machine 8. At this time, the pin pulling cylinder 8-2 of the first hoop bending machine 8 inserts the center pin 8-4 into the turntable 8-5 and performs the hoop bending operation. After completion, the pin pulling cylinder 8-2 of the first hoop bending machine 8 pulls the center pin 8-4 away from the turntable 8-5, and the bent steel bar 18 is pushed to the discharging roller by the discharging mechanism to complete the hoop bending process.

[0062] The fourth step: transfer. The steel bar 18 is sent out of the bending device to the roller conveyor. The status of all the turning components in the turning device is as follows: Figure 8As shown, the first lifting cylinder 12-3 and the second lifting cylinder 12-4 are both in a shortened state, the flipping cylinder 12-9 is also in a shortened state, and the upper edge of the flipping plate 12-1 is completely below the upper rotating surface of the roller 11-2. When the bent steel bar 18 is completely transferred to the discharge roller 11, the process can be achieved by setting the action interval time. The first lifting cylinder 12-3, the second lifting cylinder 12-4 and the flipping cylinder 12-9 of the flipping device 12 are in a shortened state. When the first lifting cylinder 12-3 and the second lifting cylinder 12-4 are extended, the flip plate 12-1 rises as a whole. When the flip cylinder 12-9 is extended, the side of the flip plate 12-1 away from the storage platform 13 rises until the flip cylinder 12-9 is fully extended. The upper edge of the flip plate 12-1 close to the storage platform 13 extends out of the discharge roller 11, which is convenient for the bent steel bars to slide down along the upper edge of the flip plate 12-1 to the storage platform 13 and be kept for backup.

[0063] The fifth process: welding. The staff puts the workpiece to be welded on the welding fixture frame 15 and presses it with a horizontal quick clamp. The welding robot 16 welds the welding points through a preset program and a visual recognition system, and welds each surface to form a steel cage.

[0064] Figure 7 The figure shown is only for demonstrating the bending sequence. The steel bar length is not limited to a single bend, and the steel bars with multiple bends can also be bent into stirrups.

[0065] Figure 6 The middle cutting mechanism 2 is placed at the initial end of the feeding of the bent steel bars. The bending process is as described above. As an equivalent alternative, the cutting mechanism can be said to be arranged between the first hoop bending machine 8 and the second hoop bending machine 9. The bending process is: the end of the bent steel bar 18 is bent by the first hoop bending machine 8, and the tail of the bent steel bar 18 is bent by the second hoop bending machine 9.

[0066] This embodiment also provides a method for producing a steel cage, which uses the above-mentioned steel bar welding automation production system and includes the following steps:

[0067] S1. Flatten the ends of the steel bar raw material by a double-head milling device;

[0068] S2, welding the two flattened steel bars in front and back into one piece by a butt welding machine;

[0069] S3, feeding the welded steel bars into a single piece into a bending device in sequence according to the length through a feeding device for continuous bending;

[0070] S4, cutting the bent steel bars into individual pieces, and bending the ends of the individual steel bars by means of a bending device;

[0071] S5, sending the steel bars after bending the hoops to the discharging roller through the discharging mechanism, and automatically turning the steel bars after bending the hoops to the storage table for standby through the turning device;

[0072] S6. After placing the raw materials required for the steel cage together, the welding points are automatically welded by the automatic welding robot.

[0073] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A steel bar welding automated production system, characterized in that: It includes a steel bar double-head milling device, a steel bar butt welding machine, a feeding and bending integrated device, a bending hoop device, a transfer device and an automatic welding device which are arranged in sequence. During the processing, the steel bar raw materials are flattened at both ends by the steel bar double-head milling device, and then two steel bars are welded into one by the butt welding machine, and the straight steel bars are continuously bent by the feeding and bending integrated device. After being cut into single bodies, the ends of the single bodies are bent by the bending hoop device and then transported to the material storage area by the transfer device. After the staff assembles the steel bars, they are welded at the welding points by the automatic welding device. The feeding and bending integrated device comprises a frame and a feeding device and a bending device sequentially arranged on the frame, and the bending device comprises a following component, an intermediate bending component and a fixed component sequentially arranged along the length direction of the steel bar, the following component and the intermediate bending component are both slidably connected to the frame, the fixed component is fixedly arranged on the frame, and a reset spring is arranged between the fixed component and the following component and the intermediate bending component, and a squeezing cylinder and a squeezing block for pressing the steel bar are arranged on the fixed component and the following component, the cylinder seat of the squeezing cylinder is hinged to the lower side of the corresponding component, the squeezing block passes through the corresponding component, the piston rod of the squeezing cylinder is hinged to the lower end of the squeezing block, and the upper end of the squeezing block has two states of squeezing steel bars and releasing steel bars, and the intermediate bending component is provided with an oil cylinder for bending the steel bars, and a bending head is fixedly connected to the piston rod of the oil cylinder; The hoop bending device includes a cutting mechanism, a discharging mechanism, a first hoop bending machine and a second hoop bending machine, the first hoop bending machine and the second hoop bending machine are arranged side by side, the first hoop bending machine and the second hoop bending machine both include a machine platform, a hoop bending disk, a pin pulling assembly and a driving assembly for driving the hoop bending disk to rotate, the hoop bending disk includes a turntable, a center pin arranged at the center of the turntable and a hoop bending pin deviating from the center of the turntable, the turntable is connected to the driving assembly, the center pin is connected to the pin pulling assembly, during the action of the pin pulling assembly, the center pin is in a state of being inserted into and detached from the turntable, when in a working state, the end of the steel bar is located between the center pin and the hoop bending pin; the pin pulling assembly includes a pin pulling rack and a pin pulling cylinder, the pin pulling rack is arranged on the machine platform, the cylinder seat of the pin pulling cylinder is fixedly connected to the pin pulling rack, and the pin pulling cylinder is located on the upper side of the hoop bending disk, and the piston rod of the pin pulling cylinder is fixedly connected to the center pin.

2. The steel bar welding automation production system according to claim 1 is characterized in that: The double-head milling device for steel bars includes a supporting device and two groups of milling devices respectively arranged at both ends of the supporting device, the supporting device is used to place steel bars, and at least one group of feeding devices for driving the steel bars to move along their length direction is arranged on the supporting device, the supporting device includes at least one group of placement grooves for placing steel bars and a plurality of support frames for supporting the placement grooves, the placement grooves are slidably arranged on the support frames by pushing cylinders, the feeding device is arranged at one end of the supporting device through the supporting frames, and the feeding device is also slidably arranged on the support frames by the pushing cylinders, and the sliding directions of the placement grooves and the feeding devices are perpendicular to the feeding direction of the steel bars.

3. The steel bar welding automation production system according to claim 2 is characterized in that: The feeding device includes a fixed frame, a driving wheel and at least one group of clamping wheels arranged on the upper part of the driving wheel. When in operation, the steel bars pass between the driving wheel and the clamping wheels. The driving wheel is connected to a driving motor. Each group of clamping wheels is slidably arranged on the fixed frame through a sliding frame. The clamping wheel is rotatably connected to the sliding frame. A clamping cylinder is arranged between the sliding frame and the fixed frame. The piston rod of the clamping cylinder is fixedly connected to the sliding frame. When the clamping cylinder is actuated, the clamping wheel has two states: clamping the steel bars and separating from the steel bars.

4. The steel bar welding automation production system according to claim 3 is characterized in that: Each group of the milling devices includes a stand, a clamping assembly, a baffle and a milling assembly, the baffle and the milling assembly are both arranged on the stand through a first pushing assembly, the clamping assembly is slidably arranged on the stand through a second pushing assembly, and when the second pushing assembly is in the process of moving, the clamping assembly has two states: facing the baffle and staggered from the baffle, and when in a working state, the steel bar is fixed by the clamping assembly, and the end of the steel bar is against the vertical surface of the baffle, and the milling assembly mills the end of the steel bar under the drive of the first pushing assembly; the clamping assembly includes a clamping frame, a clamping cylinder and a clamping block, the clamping frame is slidably arranged on the stand through the second pushing assembly, the clamping cylinder is arranged on the clamping frame, and the piston rod of the clamping cylinder is fixedly connected to the clamping block, and when in a working state, the steel bar passes between the clamping block and the clamping frame, and during the action of the clamping cylinder, the clamping block is in a state of clamping the steel bar and a state of being detached from the steel bar.

5. The steel bar welding automation production system according to claim 1 is characterized in that: The feeding device includes a clamping assembly and a power assembly. The clamping assembly is slidably arranged on the frame through a first slide. The clamping assembly includes a fixed frame and a downward pressure cylinder fixedly arranged on the fixed frame. A downward pressure block is arranged on the downward pressure cylinder. When in a working state, the steel bar passes through between the clamping block and the fixed frame. During the action of the downward pressure cylinder, the downward pressure block is in a state of clamping the steel bar and releasing the steel bar. The power assembly includes a stepping motor, a lead screw and a nut. The lead screw is connected to the output shaft of the stepping motor, and the nut is fixedly connected to the first slide, and the lead screw is threadedly connected to the nut.

6. The steel bar welding automation production system according to claim 1 is characterized in that: The transfer device includes a discharge roller and a storage platform arranged in parallel with the discharge roller, the discharge roller is provided with a flip device, the flip device includes at least one group of flip components, each group of the flip components includes a flip plate and a first drive device for driving the flip plate to rise and fall and a second drive device for driving the upper edge of the flip plate to tilt toward the storage platform, the first drive device includes a first cylinder and a second cylinder, the piston rod of the first cylinder is hinged at one end of the flip plate close to the storage platform, the piston rod of the second cylinder is hinged at one end of the flip plate away from the storage platform, when the flip plate is in a low position, the first cylinder and the second cylinder are both in shortened state, when the flip plate is in a high position, the first cylinder and the second cylinder are both in an extended state; the second driving device includes a flip cylinder, a base and a flip connecting rod, the second cylinder is slidably arranged on the base along the up and down directions, the flip connecting rod includes a first connecting rod and a second connecting rod, one end of the first connecting rod and the second connecting rod are hinged, one end of the first connecting rod is hinged on the cylinder seat of the second cylinder, and the other end of the second connecting rod is hinged at the bottom of the base, the piston rod of the flip cylinder is hinged at the hinge between the first connecting rod and the second connecting rod, and when the flip cylinder is in motion, the angle between the first connecting rod and the second connecting rod increases or decreases.

7. The steel bar welding automation production system according to claim 1 is characterized in that: The automatic welding device includes a welding fixture, a welding robot and a welding base for carrying the welding robot. The welding robot is slidably arranged on the welding base through a guide rail, and a servo motor for driving the welding robot to slide is arranged between the welding robot and the welding base. The servo motor is provided with a gear, and the welding base is provided with a rack arranged parallel to the guide rail. The gear on the servo motor is meshed and connected with the rack, and a plurality of horizontal quick clamps are arranged on the welding fixture.

8. A method for producing a steel cage, using the steel bar welding automation production system as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1. Flatten the ends of the steel bar raw material by a double-head milling device; S2, welding the two flattened steel bars in front and back into one piece by a butt welding machine; S3, feeding the welded steel bars into a single piece into a bending device in sequence according to the length through a feeding device for continuous bending; S4, cutting the bent steel bars into individual pieces, and bending the ends of the individual steel bars by means of a bending device; S5, sending the steel bars after bending the hoops to the discharging roller through the discharging mechanism, and automatically turning the steel bars after bending the hoops to the storage table for standby through the turning device; S6. After placing the raw materials required for the steel cage together, the welding points are automatically welded by the automatic welding robot.

Images