An assembly-type building precast component steel bar welding device

Abstract

The present invention relates to the technical field of prefabricated component steel bar welding, and specifically relates to a steel bar welding device for prefabricated components of an assembled building, including: a conveying mechanism is arranged on a machine tool frame, a welding mechanism is arranged on the front side of the machine tool frame, and a blanking mechanism is jointly arranged on the rear side of the machine tool frame and the welding mechanism; through the cooperation of the conveying mechanism and the blanking mechanism, compared with the existing double-station alternating processing mode, the present invention can not only achieve the full-automatic adaptive positioning and placement of horizontal and vertical steel bars, but also can adaptively adjust the placement density of horizontal and vertical steel bars according to the load-bearing requirements of the required steel bar mesh; through the cooperation of the welding mechanism, the conveying mechanism and the blanking mechanism, compared with the existing intermittent traction processing mode, the present invention can not only achieve the synchronous positioning and placement and welding processing of horizontal steel bars, but also can achieve the synchronous positioning and placement of longitudinal steel bars on the rear-side positioning die while welding and processing the front-side steel bar mesh.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated component steel bar welding, in particular to a prefabricated component steel bar welding device for assembled buildings. Background Art

[0002] Prefabricated steel bars are an important component of the concrete structure of prefabricated residential buildings. They are generally used to enhance the strength and stability of the structure. Steel mesh, as a type of prefabricated steel bar, is usually pre-welded and manufactured in the factory to reduce the workload of on-site binding.

[0003] In the existing technology, steel mesh is generally welded and produced by the following two methods: 1. A plurality of longitudinal steel bars are intermittently pulled by a guiding device, and the transverse steel bars are sequentially cut and positioned by a cutting device, and then all nodes of each transverse steel bar are welded at one time by a welding device. This process is repeated until the production of the entire steel mesh is completed, and then the longitudinal steel bars are repositioned and loaded by the automatic swinging device, thereby realizing continuous production; 2. The transverse and longitudinal steel bars are manually placed in the positioning mold, and the conveying system realizes the double-station alternation of the two positioning molds: the mold with the horizontal and longitudinal steel bars placed is conveyed to the welding station, and the welded steel mesh mold is conveyed back to the manual station. The operator reloads new steel bars after cutting and forming the steel mesh, and realizes continuous production through mold rotation.

[0004] However, the traditional method of welding steel mesh by intermittent traction or alternating between two stations has the following problems: 1. In the prior art, when welding steel mesh by intermittent traction, after the guide device completes the intermittent traction of the longitudinal steel bars, the feeding device needs to feed the transverse steel bars one by one. At this time, the welding device must pause and wait until the transverse steel bars are fully positioned, and the positioning and placement of the transverse steel bars cannot be carried out simultaneously with the welding process, resulting in a high frequency of processing windows, which affects the overall welding efficiency of the steel mesh; and the current steel mesh must be welded as a whole and moved out of the station before the automatic feeding device can reload a new batch of longitudinal steel bars, which further leads to a low overall processing efficiency of the steel mesh, and at the same time leads to a decrease in the overall equipment utilization efficiency and limited overall production capacity; 2. In the prior art, although the method of welding steel mesh by alternating between two stations can achieve the synchronous operation of welding and steel bar placement, it requires manual placement and positioning of the transverse and longitudinal steel bars in sequence, which not only has a low overall placement efficiency, but also has a heavy overall workload and high labor costs for operators when processing more steel meshes. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solutions: a steel bar welding device for prefabricated components of an assembled building, including a machine tool frame, on which a conveying mechanism for horizontally and vertically conveying steel bars is arranged. A welding mechanism for one-time welding of all nodes of the horizontal steel bars is arranged on the front side of the machine tool frame. A blanking mechanism for positioning and placing the horizontal and vertical steel bars respectively is jointly arranged on the rear side of the machine tool frame and the welding mechanism.

[0006] The machine tool frame includes main cross beams evenly distributed front and back. A first supporting part is jointly arranged on the upper sides of all the main cross beams. A second supporting part is arranged at the rear side of the first supporting part.

[0007] The conveying mechanism includes a horizontal conveying part, a lifting conveying part arranged on the first supporting part, and a guiding part cooperating with the lifting conveying part. Steel bar positioning parts are arranged on both the horizontal conveying part and the lifting conveying part.

[0008] The welding mechanism includes fixing plates fixedly arranged on the opposite sides of the left and right symmetric longitudinal beams one. A U-shaped table with a downward opening is jointly and fixedly arranged on the upper sides of the left and right symmetric fixing plates. A node welding part is arranged on the U-shaped table.

[0009] The blanking mechanism includes a storage part for storing vertical steel bars arranged at the rear side of the node welding part. Storage parts for storing horizontal steel bars are also symmetrically arranged left and right on the second supporting part. Blanking parts for feeding steel bars are symmetrically arranged along the length direction on the storage parts.

[0010] Preferably, the first supporting part includes first columns symmetrically and fixedly arranged on the upper sides of the corresponding main cross beams left and right. A longitudinal beam one is jointly and fixedly arranged on the upper ends of the first columns evenly distributed front and back, close to one side of the center of the main cross beams. Longitudinal beams two are symmetrically and fixedly arranged left and right on the upper sides of all the main cross beams and between the first columns.

[0011] Preferably, the second supporting part includes second columns symmetrically and fixedly arranged front and back on the opposite sides of the left and right symmetric longitudinal beams one. A secondary cross beam is jointly and fixedly arranged on the upper ends of the left and right symmetric second columns, close to one side of the last main cross beam. Guide rails one are installed on the opposite sides of the front and back symmetric secondary cross beams. Electric sliders one moving left and right are symmetrically and slidably arranged on the guide rails one. A connecting plate one is jointly and fixedly arranged on the sides of the left and right symmetric electric sliders one away from the corresponding guide rails one.

[0012] Preferably, the horizontal conveying part includes guide rails two fixedly arranged on the opposite sides of the left and right symmetric longitudinal beams one. Electric sliders two moving back and forth are symmetrically and slidably arranged on the guide rails two. U-shaped connecting plates are fixedly arranged on the opposite sides of the left and right symmetric electric sliders two. A moving table one is jointly and fixedly arranged between all the U-shaped connecting plates.

[0013] Preferably, the lifting and conveying part includes a guide rail three fixedly arranged on the upper side of the second longitudinal beam. Electric sliders three moving back and forth are symmetrically and slidably arranged on the guide rail three in the front and back. A connecting plate two is fixedly arranged on the upper sides of the symmetric electric sliders three in the front and back. A U-shaped supporting plate with a downward opening is fixedly arranged on the upper sides of the symmetric connecting plate two on the left and right. Elastic sliders one moving up and down are symmetrically and slidably arranged on the horizontal section of the U-shaped supporting plate in the left and right. A moving platform two is fixedly arranged on the upper ends of the symmetric elastic sliders one in the left and right. Rollers are symmetrically rotatably arranged on the left and right sides of the moving platform two through a pair of supports.

[0014] Preferably, the guiding part includes a plurality of support rods fixedly arranged at the back sides of the symmetric second longitudinal beams in the left and right, evenly in the front and back through a pair of supports two. A guiding frame is fixedly arranged on the upper ends of the evenly distributed support rods in the front and back. A guiding groove penetrating through the left and right and slidably matched with the corresponding roller is arranged on the guiding frame. The guiding groove is composed of a horizontal groove one and a U-shaped groove which are distributed in the front and back and communicated with each other. The U-shaped groove has an upward opening and is composed of a horizontal groove two and symmetric inclined grooves in the front and back.

[0015] Preferably, the steel bar positioning part includes a return frame fixedly arranged on the upper sides of both the moving platform one and the moving platform two. A plurality of groups of positioning grooves are evenly arranged on the return frame. Each group is composed of two corresponding and symmetrically distributed positioning grooves. A plurality of positioning platforms corresponding to the positioning grooves one by one and located outside the corresponding return frame are evenly fixedly arranged on the upper sides of both the moving platform one and the moving platform two. A detachable stop post is installed on the upper side of the positioning platform.

[0016] Preferably, the node welding part includes hydraulic cylinders fixedly arranged on the upper sides of the horizontal sections of the U-shaped platform in the left and right. A lifting platform moving up and down and slidably connected with the vertical section of the U-shaped platform is fixedly arranged on the telescopic ends of the symmetric hydraulic cylinders in the left and right. A plurality of welding heads are evenly installed on the lower side of the lifting platform in the left and right.

[0017] Preferably, the storage part includes a storage box installed on the rear side of the horizontal section of the U-shaped platform. Storage boxes are also symmetrically installed between the symmetric connecting plates one in the left and right. The storage box installed on the rear side of the horizontal section of the U-shaped platform and the storage boxes symmetrically installed between the symmetric connecting plates one in the left and right are vertically distributed. A feeding hopper is fixedly arranged on the upper side of the storage box. Through grooves penetrating through the width direction are symmetrically arranged on the storage box along its length direction. L-shaped connecting rods are symmetrically fixedly arranged on the storage box along its length direction through a pair of supports three. A wedge-shaped pressing block is fixedly arranged on the lower end of the vertical section of the L-shaped connecting rod. The side of the wedge-shaped pressing block close to the corresponding storage box is an inclined surface.

[0018] Preferably, the blanking part includes two spring rods symmetrically and fixedly arranged along the length direction on the side of the storage box away from the corresponding support three and below the corresponding through groove. A connecting plate three that moves along the width direction of the corresponding storage box is elastically and slidably arranged on the two spring rods corresponding to the same through groove. An upper support plate that is slidably inserted into the corresponding through groove is fixedly arranged on the upper side of the connecting plate three. One end of the upper support plate away from the corresponding connecting plate three is beveled. On the side of the connecting plate three close to the corresponding wedge-shaped pressing block, an L-shaped connecting frame is fixedly arranged through a vertically symmetrical connecting rod one. On the side of the vertical section of the L-shaped connecting frame close to the corresponding upper support plate, a lower support plate located below the storage box is fixedly arranged through a connecting rod two. A spring rod three that moves along the length direction of the corresponding storage box is elastically and slidably arranged at one end of the lower support plate close to the corresponding upper support plate. A wedge-shaped driven block that is in pressing fit with the inclined surface of the corresponding wedge-shaped pressing block and in transmission fit with the corresponding stop post is fixedly arranged at one end of the spring rod three close to the corresponding L-shaped connecting frame. The side of the wedge-shaped driven block close to the corresponding wedge-shaped pressing block is beveled.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the cooperation of the conveying mechanism and the blanking mechanism, the present invention can not only realize the full-automatic and adaptive positioning and placement of horizontal and vertical steel bars compared with the existing double-station alternating processing mode, but also can adaptively adjust the placement density of horizontal and vertical steel bars according to the load-bearing requirements of the required steel bar mesh, thereby not only improving the flexibility and efficiency of the overall placement of horizontal and vertical steel bars, but also greatly reducing the overall operation burden of the operator and reducing the overall labor cost.

[0020] 2. Through the cooperation of the welding mechanism, the conveying mechanism and the blanking mechanism, the present invention can not only realize the synchronous positioning and placement and welding processing of horizontal steel bars compared with the existing intermittent traction processing mode, but also can realize the synchronous positioning and placement of vertical steel bars on the rear positioning die while the front-side steel bar mesh is being welded, thereby not only greatly improving the overall welding processing efficiency of the steel bar mesh, but also greatly reducing the frequency of the overall processing idle period of the steel bar mesh, and at the same time improving the overall equipment utilization efficiency and the overall production capacity limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present invention.

[0022] Figure 2 It is a partial cross-sectional schematic diagram of part of the second supporting part.

[0023] Figure 3 It is a partial cross-sectional schematic diagram of part of the conveying mechanism.

[0024] Figure 4 It is a schematic diagram of part of the steel bar positioning part.

[0025] Figure 5It is a partial sectional view of a part of the blanking mechanism.

[0026] Figure 6 It is Figure 5 an enlarged view of part A in

[0027] Figure 7 It is a partial sectional view of a part of the material storage part.

[0028] Figure 8 It is a partial sectional view of a part of the blanking part.

[0029] In the figure: 1. Machine tool frame; 11. Main cross beam; 12. Support part 1; 121. Column 1; 122. Longitudinal beam 1; 123. Longitudinal beam 2; 13. Support part 2; 131. Column 2; 132. Auxiliary cross beam; 133. Guide rail 1; 134. Electric slider 1; 2. Conveying mechanism; 21. Horizontal conveying part; 211. Guide rail 2; 212. Electric slider 2; 213. Moving table 1; 22. Lifting conveying part; 221. Guide rail 3; 222. Electric slider 3; 223. Spring rod 1; 224. Moving table 2; 225. Roller; 23. Guiding part; 231. Support rod; 232. Guide frame; 233. Guide groove; 24. Steel bar positioning part; 241. Return frame; 242. Positioning groove; 243. Positioning table; 244. Stop column; 3. Welding mechanism; 31. Fixed plate; 32. U-shaped table; 33. Node welding part; 331. Hydraulic cylinder; 332. Lifting table; 333. Welding head; 4. Blanking mechanism; 41. Material storage part; 411. Material storage box; 412. Feeding hopper; 413. Wedge-shaped pressing block; 42. Blanking part; 421. Spring rod 2; 422. Upper support plate; 423. L-shaped connecting frame; 424. Lower support plate; 425. Spring rod 3; 426. Wedge-shaped driven block. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1 , an assembly-type building precast member steel bar welding device, including a machine tool frame 1, a conveying mechanism 2 for horizontally and longitudinally conveying steel bars is arranged on the machine tool frame 1, and a welding mechanism 3 for cooperatively welding the transverse steel bars at all nodes at one time in cooperation with the conveying mechanism 2 is arranged on the front side of the machine tool frame 1. A blanking mechanism 4 for cooperatively positioning and placing the transverse and longitudinal steel bars in cooperation with the conveying mechanism 2 is jointly arranged on the rear side of the machine tool frame 1 and the welding mechanism 3.

[0032] Please refer to Figure 1 , the machine tool frame 1 includes main crossbeams 11 evenly distributed front and back. On the upper sides of all the main crossbeams 11, a first supporting part 12 for installing the conveying mechanism 2 and the welding mechanism 3 is jointly arranged, and a second supporting part 13 for installing the blanking mechanism 4 is arranged at the rear side of the first supporting part 12.

[0033] Please refer to Figure 1 and Figure 2 , the first supporting part 12 includes first columns 121 symmetrically and fixedly arranged on the upper sides of the corresponding main crossbeams 11 left and right. On the side close to the center of the main crossbeam 11 at the upper ends of the first columns 121 evenly distributed front and back, a first longitudinal beam 122 is jointly and fixedly arranged. On the upper sides of all the main crossbeams 11 and between the first columns 121, second longitudinal beams 123 are symmetrically and fixedly arranged left and right.

[0034] Please refer to Figure 1 and Figure 2 , the second supporting part 13 includes second columns 131 symmetrically and fixedly arranged front and back on the opposite sides of the first longitudinal beams 122 symmetrically arranged left and right. On the side close to the last main crossbeam 11 at the upper ends of the second columns 131 symmetrically arranged left and right, a secondary crossbeam 132 is jointly and fixedly arranged. On the opposite sides of the secondary crossbeams 132 symmetrically arranged front and back, a first guide rail 133 is installed on each. On the first guide rails 133, electric sliders 134 moving left and right are symmetrically and slidably arranged left and right. On the sides of the electric sliders 134 symmetrically arranged left and right away from the corresponding first guide rails 133, a first connecting plate is jointly and fixedly arranged.

[0035] Please refer to Figure 1 , the conveying mechanism 2 includes a horizontal conveying part 21 arranged on the first longitudinal beam 122, a lifting conveying part 22 arranged on the second longitudinal beam 123, and a guiding part 23 cooperating with the lifting conveying part 22. Reinforcing bar positioning parts 24 are arranged on both the horizontal conveying part 21 and the lifting conveying part 22.

[0036] Please refer to Figure 1 , Figure 2 and Figure 3 , the horizontal conveying part 21 includes second guide rails 211 symmetrically and fixedly arranged on the opposite sides of the first longitudinal beams 122 symmetrically arranged left and right. On the second guide rails 211, electric sliders 212 moving back and forth are symmetrically and slidably arranged front and back. On the opposite sides of the electric sliders 212 symmetrically arranged left and right, U-shaped connecting plates are fixedly arranged. A first moving platform 213 is jointly and fixedly arranged among all the U-shaped connecting plates.

[0037] Please refer to Figure 1 and Figure 3, the lifting and conveying part 22 includes a guide rail three 221 fixedly arranged on the upper side of the second longitudinal beam 123. Electric sliders three 222 that move back and forth are symmetrically and slidably arranged on the guide rail three 221 in the front and back. A connecting plate two is fixedly arranged on the upper sides of the symmetric electric sliders three 222 in the front and back. On the upper sides of the symmetric connecting plates two on the left and right, a U-shaped supporting plate with a downward opening is fixedly arranged. On the horizontal section of the U-shaped supporting plate, spring rods one 223 that move up and down are symmetrically and elastically slidably arranged on the left and right. The upper ends of the symmetric spring rods one 223 on the left and right are fixedly arranged with a moving platform two 224. On the left and right sides of the moving platform two 224, rollers 225 are symmetrically arranged in a rotating manner through support seats one.

[0038] Please refer to Figure 1 and Figure 3 , the guiding part 23 includes a plurality of support rods 231 that are evenly fixed in the front and back through support seats two on the opposite sides of the second longitudinal beams 123 that are symmetrically arranged on the left and right. The upper ends of the evenly distributed support rods 231 in the front and back are fixedly arranged with a guiding frame 232. A guiding groove 233 that penetrates left and right and is slidably matched with the corresponding roller 225 is opened on the guiding frame 232. The guiding groove 233 is composed of a horizontal groove one and a U-shaped groove that are distributed in the front and back and are connected to each other. The U-shaped groove has an upward opening and is composed of a horizontal groove two and obliquely arranged grooves that are symmetrically arranged in the front and back.

[0039] The electric slider three 222 drives the corresponding connecting plate two and U-shaped supporting plate to move horizontally backward from the front end of the guide rail three 221. The spring rod one 223 drives the moving platform two 224 to move backward synchronously. The moving platform two 224 drives the roller 225 to move backward from the front end of the guiding groove 233 until the roller 225 moves from the rear end of the horizontal groove one into the upper end of the obliquely arranged groove on the front side of the U-shaped groove. Under the cooperation of the U-shaped groove and the roller 225, the moving platform two 224 and the spring rod one 223 first move downward by a specific distance, then move horizontally backward from the front end of the horizontal groove two to the rear end, and finally move upward again to reset to the initial height and stop.

[0040] When the moving platform two 224 drives the roller 225 to move backward to the upper end of the obliquely arranged groove on the front side of the U-shaped groove, the electric slider two 212 drives the U-shaped connecting plate and the moving platform one 213 at the rearmost end of the machine tool frame 1 to move horizontally forward from the rear end of the guide rail two 211, and the moving speed of the electric slider two 212 is the same as that of the electric slider three 222. The moving platform two 224 moves downward along the U-shaped groove to the lower side of the moving platform one 213. When the moving platform two 224 drives the roller 225 to move to the midpoint of the horizontal groove two, the moving platform one 213 that moves forward is exactly directly above the moving platform two 224. As the moving platform one 213 and the moving platform two 224 continue to move, until the moving platform two 224 moves to the rearmost end of the U-shaped groove, the moving platform two 224 moves from the front side of the moving platform one 213 to the rear side of the moving platform one 213, and the initial positions of the moving platform one 213 and the moving platform two 224 are interchanged.

[0041] Please refer to Figure 3 and Figure 4 As shown in Figure 3 and Figure 4 , the steel bar positioning part 24 includes a return-shaped frame 241 fixedly arranged on the upper sides of both the first moving platform 213 and the second moving platform 224. A plurality of groups of positioning grooves 242 are evenly formed in the return-shaped frame 241. Each group is composed of two corresponding and symmetrically distributed positioning grooves 242. A plurality of positioning platforms 243 corresponding to the positioning grooves 242 one by one and located outside the corresponding return-shaped frame 241 are evenly and fixedly arranged on the upper sides of the first moving platform 213 and the second moving platform 224. A detachable stop post 244 is installed on the upper side of the positioning platform 243.

[0042] Please refer to Figure 1 As shown in Figure 1 , the welding mechanism 3 includes fixing plates 31 fixedly arranged on the opposite sides of the left and right symmetric longitudinal beams 122. A U-shaped platform 32 with a downward opening is fixedly arranged on the upper sides of the left and right symmetric fixing plates 31 together. A node welding part 33 is arranged on the U-shaped platform 32.

[0043] Please refer to Figure 1 and Figure 3 As shown in Figure 1 and Figure 3 , the node welding part 33 includes hydraulic cylinders 331 symmetrically and fixedly arranged on the upper sides of the horizontal sections of the U-shaped platform 32. A lifting platform 332 that moves up and down and is slidably connected to the vertical section of the U-shaped platform 32 is fixedly arranged on the telescopic ends of the left and right symmetric hydraulic cylinders 331 together. A plurality of welding heads 333 are evenly installed on the lower side of the lifting platform 332 from left to right.

[0044] The hydraulic cylinder 331 can drive the lifting platform 332 to move downward along the vertical section of the U-shaped platform 32. The lifting platform 332 drives each welding head 333 to move downward synchronously. Each welding head 333 can respectively perform welding processing on the node positions where a single horizontal steel bar contacts each longitudinal steel bar.

[0045] Please refer to Figure 1 , Figure 3 and Figure 5 As shown in Figure 1 , Figure 3 and Figure 5 , the blanking mechanism 4 includes a storage part 41 for storing horizontal steel bars arranged at the rear side of the horizontal section of the U-shaped platform 32. Storage parts 41 for storing longitudinal steel bars are also symmetrically arranged left and right between the front and rear symmetric connecting plates 1. Blanking parts 42 for feeding steel bars are symmetrically arranged along the length direction on the storage part 41.

[0046] Please refer to Figure 5 and Figure 6, the material storage part 41 includes a storage box 411 installed at the rear side of the horizontal section of the U-shaped table 32. Storage boxes 411 are also symmetrically installed left and right between the front and rear symmetric connecting plates one. The storage box 411 installed at the rear side of the horizontal section of the U-shaped table 32 and the storage boxes 411 symmetrically installed left and right between the front and rear symmetric connecting plates one are vertically distributed. A feeding hopper 412 is fixedly arranged on the upper side of the storage box 411. Through grooves penetrating in the width direction are symmetrically opened along the length direction of the storage box 411. L-shaped connecting rods are symmetrically and fixedly arranged along the length direction of the storage box 411 through supports three. A wedge-shaped pressing block 413 is fixedly arranged at the lower end of the vertical section of the L-shaped connecting rod. The side of the wedge-shaped pressing block 413 close to the corresponding storage box 411 is an inclined surface.

[0047] Please refer to Figure 5 , Figure 6 , Figure 7 and Figure 8 , the material discharging part 42 includes spring rods two 421 symmetrically and fixedly arranged along the length direction on the side of the storage box 411 far from the corresponding support three and located below the corresponding through grooves. A connecting plate three moving along the width direction of the corresponding storage box 411 is elastically slidably arranged on the spring rods two 421 corresponding to the same through groove. An upper support plate 422 slidably inserted into the corresponding through groove is fixedly arranged on the upper side of the connecting plate three. The end of the upper support plate 422 far from the corresponding connecting plate three is an inclined surface. An L-shaped connecting frame 423 is fixedly arranged on the side of the connecting plate three close to the corresponding wedge-shaped pressing block 413 through upper and lower symmetric connecting rods one. A lower support plate 424 located below the storage box 411 is fixedly arranged on the side of the vertical section of the L-shaped connecting frame 423 close to the corresponding upper support plate 422 through a connecting rod two. A spring rod three 425 moving along the length direction of the corresponding storage box 411 is elastically slidably arranged at the end of the lower support plate 424 close to the corresponding upper support plate 422. A wedge-shaped driven block 426 which is in pressing fit with the inclined surface of the corresponding wedge-shaped pressing block 413 and in transmission fit with the corresponding stop post 244 is fixedly arranged at the end of the spring rod three 425 close to the corresponding L-shaped connecting frame 423. The side of the wedge-shaped driven block 426 close to the corresponding wedge-shaped pressing block 413 is an inclined surface.

[0048] Drive the corresponding loop-shaped frame 241 to move to the rearmost end of the machine tool frame 1 through the mobile station one 213 or the mobile station two 224. Then, drive the connecting plate one and the two symmetrically arranged storage boxes 411 on the left and right synchronously to move from one end of the guide rail one 133 to the other end through the electric slider one 134. When the storage box 411 on the left moves to the left, the wedge-shaped driven block 426 on the lower support plate 424 corresponding to the left storage box 411 will be in transmission cooperation with the corresponding stoppers 244 installed on the front and rear symmetric positioning tables 243 in sequence. With the continuous drive of the electric slider one 134, the plane on the left side of the left wedge-shaped driven block 426 will be blocked by the corresponding stopper 244 and cannot continue to move leftward. The spring rod three 425 on the left wedge-shaped driven block 426 will then cause the corresponding lower support plate 424, the L-shaped connecting frame 423 corresponding to the lower support plate 424, and the upper support plate 422 corresponding to the L-shaped connecting frame 423 to stop moving leftward synchronously and cannot continue to move leftward. As a result, the lower support plate 424 and the upper support plate 422 on the left will move relative to the left storage box 411 along the spring rod two 421. As the left storage box 411 continues to move leftward relative to the left wedge-shaped driven block 426, the lower support plate 424 will gradually move away from under the left storage box 411, and the upper support plate 422 will gradually insert into the corresponding through groove and gradually support all the steel bars above the lowermost longitudinal steel bar in the left storage box 411. When the left lower support plate 424 completely moves away, the lower end of the left storage box 411 will exactly align with the corresponding set of positioning grooves 242. The lowermost longitudinal steel bar in the left storage box 411 will then accurately fall into this set of positioning grooves 242 and be stably positioned and placed under the limit of the corresponding positioning table 243. At the same time, the upper support plate 422 on the left will also exactly support all the steel bars above this longitudinal steel bar.

[0049] As the left storage box 411 continues to move leftward, the inclined surface on the wedge-shaped pressing block 413 that moves leftward synchronously comes into close contact and presses against the inclined surface on the corresponding wedge-shaped driven block 426, and the left wedge-shaped driven block 426 and the third spring rod 425 are then pressed in the direction of the corresponding lower support plate 424 until the plane on the left side of the left wedge-shaped driven block 426 disengages from the corresponding stop post 244. At this time, under the action of the second spring rod 421, the left upper support plate 422 and the lower support plate 424 move synchronously to reset, and the lower support plate 424 then supports all the remaining longitudinal steel bars in the left storage box 411 again. The left wedge-shaped driven block 426 also disengages from the corresponding wedge-shaped pressing block 413 and moves to reset under the action of the third spring rod 425. Among them, the wedge-shaped pressing block 413 will not come into contact with the corresponding stop post 244. Thus, in the above way, the left storage box 411 can continue to move leftward to sequentially position and place the longitudinal steel bars from right to left in each corresponding positioning groove 242 on the corresponding loop-shaped frame 241. And the placement density of the steel bars on the steel bar mesh can also be flexibly controlled by removing the stop post 244 on the positioning platform 243 at a specific position to prevent the storage box 411 from feeding steel bars into the corresponding positioning groove 242. Among them, the required steel bars can be replenished into the storage box 411 through the feeding hopper 412.

[0050] When the right storage box 411 moves leftward synchronously with the left storage box 411, the inclined surface on the right wedge-shaped driven block 426 comes into contact and presses against the corresponding stop post 244 in sequence, and the right wedge-shaped driven block 426 then moves in the direction of the corresponding lower support plate 424 until it disengages from the corresponding stop post 244 and resets under the action of the corresponding third spring rod 425. Thus, in the above way, the right storage box 411 will not feed materials during the leftward movement; and when the symmetric storage boxes 411 move synchronously from left to right, the longitudinal steel bars can be sequentially positioned and placed from right to left in each corresponding positioning groove 242 on the corresponding loop-shaped frame 241 through the right storage box 411, and at the same time, the left storage box 411 will not feed materials.

[0051] When the first moving platform 213 or the second moving platform 224 drives the corresponding loop-shaped frame 241 to move forward from the rear side of the storage box 411 on the U-shaped platform 32, the stop posts 244 installed on the symmetric positioning platforms 243 on the loop-shaped frame 241 are in transmission cooperation with the planes on the rear sides of the corresponding wedge-shaped driven blocks 426 on the storage box 411 in sequence, so that the storage box 411 can sequentially position and place the internal transverse steel bars from front to back in each corresponding positioning groove 242 on the corresponding loop-shaped frame 241. When the lower end of the storage box 411 is aligned with a set of corresponding positioning grooves 242 at the rear side and the transverse steel bars are placed, the welding nodes on each of the previously positioned and placed transverse steel bars adjacent to the front side are exactly aligned with the corresponding welding heads 333 respectively.

[0052] The above operation method can achieve the full-automatic adaptive positioning and placement of horizontal and vertical steel bars, and can adaptively adjust the placement density of horizontal and vertical steel bars according to the load-bearing requirements of the required steel bar mesh, thus not only improving the flexibility and efficiency of the overall placement of horizontal and vertical steel bars, but also greatly reducing the overall operation burden of operators and lowering the overall labor cost.

[0053] When welding the steel bar mesh, first move the second moving platform 224 with the longitudinal steel bars placed thereon on the corresponding rectangular frame 241 from back to front until the roller 225 moves to the rear end of the first horizontal groove accordingly. At the same time, move the first moving platform 213 with the welded steel bar mesh supported thereon on the corresponding rectangular frame 241 from front to back and displace it to the rearmost end of the machine frame 1. First, remove the welded steel bar mesh through the unloading device, and then immediately move the two rear storage boxes 411 along the first guide rail 133 synchronously in a specific direction to sequentially and evenly place the required number of longitudinal steel bars into the rectangular frame 241 above the first moving platform 213. At the same time, move the second moving platform 224 forward from the rear side of the storage box 411 on the U-shaped platform 32. The storage box 411 on the U-shaped platform 32 continuously places the transverse steel bars into the rectangular frame 241 above the second moving platform 224. At the same time, drive each welding head 333 to continuously move up and down reciprocally synchronously through the hydraulic cylinder 331, so that each welding head 333 respectively welds and processes each transverse steel bar that has been positioned and is exactly aligned in sequence, thus realizing the synchronous positioning and placement of the rear transverse steel bars and the welding and processing of the front transverse steel bars until the welding of the steel bar mesh on the second moving platform 224 is completed. Then move the second moving platform 224 backward again until the roller 225 moves from the rear end of the first horizontal groove into the upper end of the front inclined groove of the U-shaped groove. At this time, the steel bar mesh in the rectangular frame 241 on the first moving platform 213 has been unloaded and the longitudinal steel bars have also been placed. Thus, move the first moving platform 213 forward again until it completes the interchange of the initial positions with the second moving platform 224. Then repeat the above operations to realize the continuous production of the steel bar mesh.

[0054] The above operation method can not only realize the synchronous positioning and placement and welding and processing of the transverse steel bars, but also realize the synchronous positioning and placement of the longitudinal steel bars on the rear rectangular frame 241 while welding and processing the front steel bar mesh, thus not only greatly improving the overall welding and processing efficiency of the steel bar mesh, but also greatly reducing the frequency of the overall processing idle period of the steel bar mesh, and at the same time improving the overall equipment utilization efficiency and the overall production capacity limit.

[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembling type building precast component steel bar welding device, comprising a machine tool frame, characterized in that: A conveying mechanism for horizontally and longitudinally conveying transverse and longitudinal steel bars is provided on the machine tool frame. A welding mechanism for performing one-time welding of all nodes of the transverse steel bars is provided on the front side of the machine tool frame. A blanking mechanism for positioning and placing the transverse and longitudinal steel bars respectively is jointly provided on the rear side of the machine tool frame and the welding mechanism; The machine tool frame includes main crossbeams evenly distributed front and back. A first supporting part is jointly provided on the upper sides of all the main crossbeams. A second supporting part is provided at the rear side of the first supporting part; The conveying mechanism includes a horizontal conveying part, a lifting conveying part provided on the first supporting part, and a guiding part cooperating with the lifting conveying part. Steel bar positioning parts are provided on both the horizontal conveying part and the lifting conveying part; The welding mechanism includes fixing plates fixedly provided on the opposite sides of the left and right symmetric first longitudinal beams. A U-shaped table with an opening facing downwards is jointly fixedly provided on the upper sides of the left and right symmetric fixing plates. A node welding part is provided on the U-shaped table; The blanking mechanism includes a storage part for storing longitudinal steel bars provided at the rear side of the node welding part. Storage parts for storing transverse steel bars are also symmetrically provided left and right on the second supporting part. Blanking parts for feeding steel bars are symmetrically provided along the length direction of the storage part; The second supporting part includes second columns symmetrically fixed front and back on the opposite sides of the left and right symmetric first longitudinal beams. A secondary crossbeam is jointly fixedly provided on the side of the upper ends of the left and right symmetric second columns close to the last main crossbeam. Guide rails I are installed on the opposite sides of the front and back symmetric secondary crossbeams. Electric sliders I moving left and right are slidably provided symmetrically left and right on the guide rails I. A connecting plate I is jointly fixedly provided on the sides of the left and right symmetric electric sliders I far from the corresponding guide rails I; The storage part includes storage boxes installed on the rear side of the horizontal section of the U-shaped table. Storage boxes are also symmetrically installed left and right jointly between the front and back symmetric connecting plates I. The storage boxes installed on the rear side of the horizontal section of the U-shaped table and the storage boxes symmetrically installed left and right jointly between the front and back symmetric connecting plates I are vertically distributed. A feeding hopper is fixedly provided on the upper side of the storage box. Through grooves penetrating along the width direction are symmetrically opened along the length direction of the storage box. L-shaped connecting rods are symmetrically fixedly provided along the length direction of the storage box through supports III. A wedge-shaped pressing block is fixedly provided at the lower end of the vertical section of the L-shaped connecting rod. The side of the wedge-shaped pressing block close to the corresponding storage box is an inclined surface; The blanking part includes spring rods II symmetrically and fixedly arranged along the length direction on one side of the storage box away from the corresponding support III and located below the corresponding through groove. On the spring rods II corresponding to the same through groove, a connecting plate III that moves along the width direction of the corresponding storage box is elastically and slidably arranged. On the upper side of the connecting plate III, an upper support plate that is slidably inserted into the corresponding through groove is fixedly arranged. One end of the upper support plate away from the corresponding connecting plate III is an inclined surface. On one side of the connecting plate III close to the corresponding wedge-shaped pressing block, an L-shaped connecting frame is fixedly arranged through a vertically symmetrical connecting rod I. On the side of the vertical section of the L-shaped connecting frame close to the corresponding upper support plate, a lower support plate located below the storage box is fixedly arranged through a connecting rod II. On the end of the lower support plate close to the corresponding upper support plate, a spring rod III that moves along the length direction of the corresponding storage box is elastically and slidably arranged. On one end of the spring rod III close to the corresponding L-shaped connecting frame, a wedge-shaped driven block that is in pressing cooperation with the inclined surface of the corresponding wedge-shaped pressing block and in transmission cooperation with the corresponding stop post is fixedly arranged. One side of the wedge-shaped driven block close to the corresponding wedge-shaped pressing block is an inclined surface.

2. The steel bar welding device for prefabricated components of an assembled building according to claim 1, wherein: The first supporting part includes columns I symmetrically and fixedly arranged on the upper side of the corresponding main cross beam. On the side of the upper ends of the columns I evenly distributed in the front and back and close to the center of the main cross beam, a longitudinal beam I is fixedly arranged together. On the upper side of all the main cross beams and between the columns I, longitudinal beams II are symmetrically and fixedly arranged left and right.

3. The steel bar welding device for prefabricated components of an assembled building according to claim 2, wherein: The horizontal conveying part includes guide rails II fixedly arranged on the opposite sides of the symmetrically arranged longitudinal beams I on the left and right. On the guide rails II, electric sliders II that move back and forth are symmetrically slidably arranged in the front and back. On the opposite sides of the symmetrically arranged electric sliders II on the left and right, U-shaped connecting plates are fixedly arranged. A moving platform I is fixedly arranged among all the U-shaped connecting plates.

4. The steel bar welding device for prefabricated components of an assembled building according to claim 3, characterized in that: The lifting and conveying part includes a guide rail III fixedly arranged on the upper side of the longitudinal beam II. On the guide rail III, electric sliders III that move back and forth are symmetrically slidably arranged in the front and back. On the upper sides of the symmetrically arranged electric sliders III in the front and back, a connecting plate II is fixedly arranged together. On the upper sides of the symmetrically arranged connecting plates II on the left and right, a U-shaped supporting plate with an opening facing down is fixedly arranged. On the horizontal section of the U-shaped supporting plate, spring rods I that move up and down are symmetrically and elastically slidably arranged on the left and right. On the upper ends of the symmetrically arranged spring rods I on the left and right, a moving platform II is fixedly arranged together. On the left and right sides of the moving platform II, rollers are symmetrically rotatably arranged through support seats I.

5. The prefabricated component steel bar welding device for an assembled building according to claim 4, characterized in that: The guiding part includes a plurality of support rods evenly and fixedly arranged in the front and back through support seats II on the opposite sides of the symmetrically arranged longitudinal beams II on the left and right. On the upper ends of the plurality of support rods evenly distributed in the front and back, a guiding frame is fixedly arranged together. On the guiding frame, a guiding groove that penetrates left and right and is slidably matched with the corresponding roller is opened. The guiding groove is composed of a horizontal groove I and a U-shaped groove that are distributed in the front and back and communicate with each other. The U-shaped groove has an opening facing up and is composed of a horizontal groove II and obliquely arranged grooves that are symmetrically distributed in the front and back.

6. The steel bar welding device for prefabricated components of an assembled building according to claim 4, characterized in that: The steel bar positioning part includes a return frame fixedly arranged on the upper sides of the moving platform I and the moving platform II. On the return frame, multiple groups of positioning grooves are evenly opened. Each group is composed of two corresponding and symmetrically distributed positioning grooves. On the upper sides of the moving platform I and the moving platform II, a plurality of positioning platforms located outside the corresponding return frame and corresponding to the positioning grooves one by one are evenly fixedly arranged. On the upper side of the positioning platform, a detachable stop post is installed.

7. The steel bar welding device for prefabricated components of an assembled building according to claim 1, characterized in that: The node welding part includes hydraulic cylinders symmetrically and fixedly arranged on the upper side of the horizontal section of the U-shaped table. The telescopic ends of the symmetrically arranged hydraulic cylinders on the left and right are jointly and fixedly provided with a lifting table that moves up and down and is slidably connected to the vertical section of the U-shaped table. A plurality of welding heads are evenly installed on the lower side of the lifting table, left and right.

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