Fabricated building prefabricated part steel bar welding device

Abstract

The invention relates to the technical field of prefabricated part steel bar welding, in particular to an assembly type building prefabricated part steel bar welding device which comprises a machine tool frame, a conveying mechanism is arranged on the machine tool frame, a welding mechanism is arranged on the front side of the machine tool frame, and a discharging mechanism is arranged on the rear side of the machine tool frame and the welding mechanism jointly; compared with an existing double-station alternate machining mode, the full-automatic self-adaptive positioning and placing of transverse and longitudinal steel bars can be achieved through cooperation of the conveying mechanism and the discharging mechanism, and the placing density of the transverse and longitudinal steel bars can be adjusted in a self-adaptive mode according to the bearing requirement of needed steel bar meshes; through cooperation of the welding mechanism, the conveying mechanism and the discharging mechanism, compared with an existing intermittent traction machining mode, positioning, placing and welding machining of transverse steel bars can be conducted synchronously, and longitudinal steel bars on a rear side positioning mold can be synchronously positioned and placed while welding machining of a front side steel bar mesh is achieved.

Description

Technical Field

[0001] The 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 parts 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. As a type of prefabricated steel parts, steel mesh is usually pre-welded and manufactured in the factory to reduce the workload of on-site binding.

[0003] In the prior art, steel mesh is generally welded and produced in the following two ways: 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 feeding device, and then each transverse steel bar is welded at all nodes by a welding device, and this process is repeated until the entire steel mesh is completed, and then the longitudinal steel bars are repositioned and loaded by an 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: while the mold with the transverse and longitudinal steel bars placed is conveyed to the welding station, the welded steel mesh mold is conveyed back to the manual station, and 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 the steel mesh by intermittent traction or alternating between two stations has the following problems: 1. In the prior art, the method of welding the steel mesh by intermittent traction is that 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 stop and wait until the transverse steel bars are completely positioned, and the positioning and placement of the transverse steel bars cannot be synchronized 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 swing 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, the method of welding the steel mesh by alternating between two stations can achieve the synchronous operation of welding and steel bar placement, but it is necessary to manually place and position 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 when processing more steel meshes. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an assembled building prefabricated steel bar welding device, comprising a machine tool frame, the machine tool frame is provided with a conveying mechanism for conveying horizontal and longitudinal steel bars forward and backward, the front side of the machine tool frame is provided with a welding mechanism for performing one-time welding of all nodes of the horizontal steel bars, and the rear side of the machine tool frame and the welding mechanism are jointly provided with a feeding mechanism for positioning and placing the horizontal and longitudinal steel bars respectively.

[0006] The machine tool frame comprises main cross beams evenly distributed front and back, a supporting part 1 is commonly arranged on the upper side of all the main cross beams, and a supporting part 2 is arranged on the rear side of the supporting part 1.

[0007] The conveying mechanism comprises a horizontal conveying part, a lifting conveying part and a guiding part matched with the lifting conveying part, which are arranged on the supporting part. The horizontal conveying part and the lifting conveying part are both provided with a steel bar positioning part.

[0008] The welding mechanism comprises fixing plates fixedly arranged on opposite sides of the left-right symmetrical longitudinal beam 1, a U-shaped platform with an opening facing downwards is fixedly arranged on the upper side of the left-right symmetrical fixing plates, and a node welding part is arranged on the U-shaped platform.

[0009] The unloading mechanism includes a storage part arranged at the rear side of the node welding part for storing longitudinal steel bars, and the supporting part 2 is also symmetrically provided with a storage part for storing transverse steel bars, and the storage part is symmetrically provided with a unloading part for dropping steel bars along the length direction.

[0010] Preferably, the supporting part 1 includes a column 1 symmetrically fixedly arranged on the upper side of the corresponding main beam, a longitudinal beam 1 is fixedly arranged on the upper end of the column 1 evenly distributed front and back near the center of the main beam, and a longitudinal beam 2 is fixedly arranged on the upper side of all the main beams and between the columns 1 symmetrically.

[0011] Preferably, the supporting part two includes two columns which are symmetrically fixed front and back on the opposite sides of a left-right symmetrical longitudinal beam one, a secondary crossbeam is fixedly arranged on the upper ends of the two left-right symmetrical columns close to the rearmost main crossbeam, a guide rail one is installed on the opposite sides of the front-back symmetrical secondary crossbeam, an electric slider one which moves left and right is symmetrically slidably arranged on the guide rail one, and a connecting plate one is fixedly arranged on the side of the left-right symmetrical electric slider one away from the corresponding guide rail one.

[0012] Preferably, the horizontal conveying part includes two guide rails fixedly arranged on opposite sides of a left-right symmetrical longitudinal beam, two electric sliders that can move forward and backward are symmetrically slidably arranged on the two guide rails, U-shaped connecting plates are fixedly arranged on opposite sides of the two left-right symmetrical electric sliders, and a moving platform one is 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 longitudinal beam two, an electric slider three that moves forward and backward is symmetrically slidably arranged on the guide rail three, a connecting plate two is commonly fixedly arranged on the upper side of the front-back symmetrical electric slider three, a U-shaped supporting plate with an opening facing downward is commonly fixedly arranged on the upper side of the left-right symmetrical connecting plate two, a spring rod one that moves up and down is elastically slidably arranged left-right symmetrically on the horizontal section of the U-shaped supporting plate, a moving platform two is commonly fixedly arranged on the upper end of the left-right symmetrical spring rod one, and rollers are symmetrically rotatably arranged on the left and right sides of the moving platform two through a support one.

[0014] Preferably, the guide portion includes a plurality of support rods which are evenly fixedly arranged front and back through a support two on the opposite sides of a left-right symmetrical longitudinal beam two, a guide frame is fixedly arranged on the upper ends of the plurality of support rods evenly distributed front and back, and a guide groove which passes through the left and right and slidably cooperates with the corresponding roller is opened on the guide frame, the guide groove is composed of a horizontal groove one and a U-shaped groove which are distributed front and back and connected to each other, the U-shaped groove is open upward and is composed of a horizontal groove two and an oblique groove which is symmetrical front and back.

[0015] Preferably, the steel bar positioning portion includes a return frame fixedly provided on the upper side of the movable platform one and the movable platform two, and a plurality of groups of positioning grooves are evenly arranged on the return frame, and each group is composed of positioning grooves that correspond to each other and are symmetrically distributed. A plurality of positioning platforms located outside the corresponding return frames and corresponding one to one with the positioning grooves are evenly fixedly provided on the upper side of the movable platform one and the movable platform two, and a detachable blocking column is installed on the upper side of the positioning platform.

[0016] Preferably, the node welding part includes a hydraulic cylinder symmetrically fixedly arranged on the upper side of the horizontal section of the U-shaped platform, and the telescopic ends of the symmetrical hydraulic cylinders are jointly fixed with a lifting platform that moves up and down and is slidably connected to the vertical section of the U-shaped platform, and a plurality of welding heads are evenly installed on the left and right sides of the lower side of the lifting platform.

[0017] Preferably, the material storage portion includes a material storage box installed on the rear side of the horizontal section of the U-shaped platform, and a material storage box is also symmetrically installed between the front and rear symmetrical connecting plates, wherein the material storage box installed on the rear side of the horizontal section of the U-shaped platform and the material storage box symmetrically installed between the front and rear symmetrical connecting plates are vertically distributed, a feeding hopper is fixedly arranged on the upper side of the material storage box, and through grooves that pass through along the width direction are symmetrically opened on the material storage box along its length direction, an L-shaped connecting rod is symmetrically fixedly arranged on the material storage box along its length direction through a support three, a wedge-shaped pressure block is fixedly arranged at the lower end of the vertical section of the L-shaped connecting rod, and the side of the wedge-shaped pressure block close to the corresponding material storage box is an inclined surface.

[0018] The cam is secured to the bottom of the shelf and has a spring loaded support plate which is symmetrically fixed along its length direction on one side of the shelf away from the corresponding support plate three, wherein the spring loaded support plate is elastically slidably arranged on the bottom of the shelf and moves along the width direction of the corresponding shelf. The upper side of the shelf is fixedly provided with an upper support plate which is slidably inserted into the corresponding through slot and is away from the corresponding connecting plate three. An inclined surface is provided on the upper side of the shelf and is slidably inserted into the corresponding through slot and is away from the corresponding connecting plate three. The upper side of the shelf is fixedly provided with an L-shaped connecting frame, wherein one side of the connecting plate three which is close to the corresponding wedge-shaped pressure block is fixedly provided with an L-shaped connecting frame through an upper and lower symmetrical connecting rod one. A lower support plate located below the storage box is fixedly provided with a spring rod three which moves along the length direction of the corresponding storage box on the lower support plate close to the corresponding upper support plate. A wedge-shaped driven block which is pressed and matched with the inclined surface of the corresponding wedge pressure block and matched with the corresponding stop column for transmission is fixedly arranged on one end of the spring rod three which is close to the corresponding L-shaped connecting frame. The side of the wedge follower block which is close to the corresponding wedge pressure block is an inclined surface.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention, through the cooperation of the conveying mechanism and the unloading mechanism, can not only realize the fully automatic adaptive positioning and placement of the horizontal and longitudinal steel bars, but also can adaptively adjust the placement density of the horizontal and longitudinal steel bars according to the load-bearing requirements of the required steel mesh, thereby not only improving the flexibility and efficiency of the overall placement of the horizontal and longitudinal steel bars, but also greatly reducing the overall operating burden of the operator and reducing the overall labor cost.

[0020] 2. Compared with the existing intermittent traction processing mode, the present invention can not only realize the simultaneous positioning and placement of the transverse steel bars and the welding processing, but also can realize the simultaneous positioning and placement of the longitudinal steel bars on the rear positioning mold while the front steel mesh is being welded, thereby greatly improving the overall welding processing efficiency of the steel mesh and greatly reducing the frequency of the overall steel mesh processing window period, while also improving the overall equipment utilization efficiency and the overall production capacity limit. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0025] Figure 5It is a partial cross-sectional schematic diagram of some structures of the unloading mechanism.

[0026] Figure 6 for Figure 5 Enlarged schematic diagram at point A in the middle.

[0027] Figure 7 It is a partial cross-sectional schematic diagram of some structures of the storage section.

[0028] Figure 8 It is a partial cross-sectional schematic diagram of some structures of the blanking part.

[0029] In the figure: 1, machine tool frame; 11, main crossbeam; 12, supporting part 1; 121, column 1; 122, longitudinal beam 1; 123, longitudinal beam 2; 13, supporting part 2; 131, column 2; 132, secondary crossbeam; 133, guide rail 1; 134, electric slide block 1; 2, conveying mechanism; 21, horizontal conveying part; 211, guide rail 2; 212, electric slide block 2; 213, moving platform 1; 22, lifting conveying part; 221, guide rail 3; 222, electric slide block 3; 223, spring rod 1; 224, moving platform 2; 225, roller; 23, guide part; 231, support rod; 232, guide Frame; 233, guide groove; 24, steel bar positioning part; 241, return frame; 242, positioning groove; 243, positioning platform; 244, blocking column; 3, welding mechanism; 31, fixing plate; 32, U-shaped platform; 33, node welding part; 331, hydraulic cylinder; 332, lifting platform; 333, welding head; 4, unloading mechanism; 41, material storage part; 411, material storage box; 412, feeding hopper; 413, wedge-shaped pressure block; 42, unloading part; 421, spring rod two; 422, upper support plate; 423, L-shaped connecting frame; 424, lower support plate; 425, spring rod three; 426, wedge-shaped follower block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 A steel bar welding device for assembled building prefabricated parts includes a machine tool frame 1, on which a conveying mechanism 2 for conveying horizontal and vertical steel bars is arranged, a welding mechanism 3 for cooperating with the conveying mechanism 2 to perform all-node one-time welding of the horizontal steel bars is arranged on the front side of the machine tool frame 1, and a feeding mechanism 4 for cooperating with the conveying mechanism 2 to position and place the horizontal and vertical steel bars respectively is arranged on the rear side of the machine tool frame 1 and the welding mechanism 3.

[0032] See also Figure 1 The machine tool frame 1 includes main beams 11 evenly distributed front and back, and the upper sides of all the main beams 11 are commonly provided with a supporting part 12 for installing the conveying mechanism 2 and the welding mechanism 3, and the rear side of the supporting part 12 is provided with a supporting part 2 13 for installing the unloading mechanism 4.

[0033] See also Figure 1 and Figure 2 The supporting part 12 includes a column 121 symmetrically fixedly arranged on the upper side of the corresponding main beam 11, a longitudinal beam 122 is fixedly arranged on the upper end of the column 121 evenly distributed front and back near the center of the main beam 11, and a longitudinal beam 123 is fixedly arranged on the upper side of all the main beams 11 and between the columns 121 symmetrically.

[0034] See also Figure 1 and Figure 2 The supporting part 13 includes two columns 131 that are symmetrically fixed on the opposite sides of the left-right symmetrical longitudinal beam 122, and a secondary beam 132 is fixedly arranged on the upper ends of the left-right symmetrical columns 131 close to the rearmost main beam 11, and a guide rail 133 is installed on the opposite sides of the front-back symmetrical secondary beam 132, and an electric slider 134 that moves left and right is symmetrically slidably arranged on the guide rail 133, and a connecting plate 1 is fixedly arranged on the side of the left-right symmetrical electric slider 134 away from the corresponding guide rail 133.

[0035] See also Figure 1 The conveying mechanism 2 includes a horizontal conveying portion 21 arranged on the longitudinal beam 122, a lifting conveying portion 22 and a guide portion 23 cooperating with the lifting conveying portion 22 are arranged on the longitudinal beam 123, and a steel bar positioning portion 24 is arranged on both the horizontal conveying portion 21 and the lifting conveying portion 22.

[0036] See also Figure 1 , Figure 2 and Figure 3 The horizontal conveying part 21 includes a guide rail 211 fixedly arranged on the opposite side of a longitudinal beam 122 that is symmetrical on both sides, and an electric slider 212 that moves forward and backward is symmetrically slidably arranged on the guide rail 211. A U-shaped connecting plate is fixedly arranged on the opposite side of the symmetrical electric slider 212, and a moving platform 213 is fixedly arranged between all the U-shaped connecting plates.

[0037] See also Figure 1 and Figure 3The lifting and conveying part 22 includes a guide rail 3 221 fixedly arranged on the upper side of the longitudinal beam 2 123, an electric slider 3 222 that moves forward and backward is symmetrically slidably arranged on the guide rail 3 221, a connecting plate 2 is fixedly arranged on the upper side of the front-back symmetrical electric slider 3 222, a U-shaped supporting plate with an opening facing downward is fixedly arranged on the upper side of the left-right symmetrical connecting plate 2, a spring rod 1 223 that moves up and down is symmetrically elastically slidably arranged on the horizontal section of the U-shaped supporting plate, a moving platform 224 is fixedly arranged on the upper end of the left-right symmetrical spring rod 1 223, and rollers 225 are symmetrically rotatably arranged on the left and right sides of the moving platform 224 through a support 1.

[0038] See also Figure 1 and Figure 3 The guide portion 23 includes a plurality of support rods 231 uniformly fixedly arranged front and rear on the opposite side of the longitudinal beam 123 which is symmetrical on both sides. A guide frame 232 is fixedly arranged on the upper ends of the plurality of support rods 231 uniformly distributed front and rear. The guide frame 232 is provided with a guide groove 233 which penetrates the left and right sides and slides with the corresponding roller 225. The guide groove 233 is composed of a horizontal groove 1 and a U-shaped groove which are distributed front and back and connected to each other. The U-shaped groove opens upward and is composed of a horizontal groove 2 and a front-to-back symmetrical oblique groove.

[0039] The electric slider 3 222 drives the corresponding connecting plate 2 and the U-shaped supporting plate to move horizontally backward from the front end of the guide rail 3 221, and the spring rod 1 223 drives the movable platform 2 224 to move backward synchronously, and the movable platform 2 224 drives the roller 225 to move backward from the front end of the guide groove 233, until the roller 225 moves from the rear end of the horizontal groove 1 into the upper end of the oblique groove on the front side of the U-shaped groove. Under the cooperation of the U-shaped groove and the roller 225, the movable platform 2 224 and the spring rod 1 223 first move downward a specific distance, then move horizontally backward from the front end of the horizontal groove 2 to the rear end, and finally move upward again to reset to the initial height and then stop.

[0040] When the movable platform 224 drives the roller 225 to move backward to the upper end of the oblique groove on the front side of the U-shaped groove, the U-shaped connecting plate and the movable platform 1 213 at the rear end of the machine tool frame 1 are driven by the electric slider 212 to move horizontally forward from the rear end of the guide rail 211, and the moving speed of the electric slider 212 and the electric slider 3 222 are made to be the same, and the movable platform 2 224 then moves downward along the U-shaped groove to the bottom of the movable platform 1 213. When the movable platform 224 drives the roller 225 to move to the midpoint of the horizontal groove 2, the movable platform 1 213 moving forward is just above the movable platform 2 224. As the movable platform 1 213 and the movable platform 2 224 continue to move, until the movable platform 2 224 moves to the rear end of the U-shaped groove, the movable platform 2 224 then moves from the front side of the movable platform 1 213 to the rear side of the movable platform 1 213, and the initial positions of the movable platform 1 213 and the movable platform 2 224 are interchanged.

[0041] See also Figure 3 and Figure 4 The steel bar positioning part 24 includes a return frame 241 fixedly arranged on the upper side of the movable platform 1 213 and the movable platform 2 224, and a plurality of groups of positioning grooves 242 are evenly arranged on the return frame 241, and each group is composed of two corresponding and symmetrically distributed positioning grooves 242. The upper side of the movable platform 1 213 and the movable platform 2 224 is evenly fixed with a plurality of positioning platforms 243 located outside the corresponding return frame 241 and corresponding one to one with the positioning grooves 242, and a detachable blocking column 244 is installed on the upper side of the positioning platform 243.

[0042] See also Figure 1 The welding mechanism 3 includes a fixing plate 31 fixedly arranged on the opposite sides of the left-right symmetrical longitudinal beam 122, and a U-shaped platform 32 with an opening facing downward is fixedly arranged on the upper side of the left-right symmetrical fixing plate 31, and a node welding part 33 is arranged on the U-shaped platform 32.

[0043] See also Figure 1 and Figure 3 The node welding part 33 includes a hydraulic cylinder 331 which is symmetrically fixed on the upper side of the horizontal section of the U-shaped platform 32. The telescopic ends of the symmetrical hydraulic cylinders 331 are fixedly provided with a lifting platform 332 which moves up and down and is slidably connected to the vertical section of the U-shaped platform 32. A plurality of welding heads 333 are evenly installed on the left and right sides of the lower side of the lifting platform 332.

[0044] The hydraulic cylinder 331 can drive the lifting platform 332 to move downward along the vertical section of the U-shaped platform 32, and 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 position where a single transverse steel bar contacts each longitudinal steel bar.

[0045] See also Figure 1 , Figure 3 and Figure 5 The unloading mechanism 4 includes a storage portion 41 for storing transverse steel bars arranged at the rear side of the horizontal section of the U-shaped platform 32, and a storage portion 41 for storing longitudinal steel bars is also symmetrically arranged between the front and rear symmetrical connecting plates, and a unloading portion 42 for dropping steel bars is symmetrically arranged along the length direction on the storage portion 41.

[0046] See also Figure 5 and Figure 6The material storage portion 41 includes a material storage box 411 installed on the rear side of the horizontal section of the U-shaped platform 32, and a material storage box 411 is also symmetrically installed between the front and rear symmetrical connecting plates, wherein the material storage box 411 installed on the rear side of the horizontal section of the U-shaped platform 32 and the material storage box 411 symmetrically installed between the front and rear symmetrical connecting plates are vertically distributed, and a feeding hopper 412 is fixedly arranged on the upper side of the material storage box 411, and through grooves that pass through the material storage box 411 along its width direction are symmetrically opened along its length direction, and an L-shaped connecting rod is symmetrically fixedly arranged on the material storage box 411 along its length direction through a support three, and a wedge-shaped pressure block 413 is fixedly arranged at the lower end of the vertical section of the L-shaped connecting rod, and the side of the wedge-shaped pressure block 413 close to the corresponding material storage box 411 is an inclined surface.

[0047] See also Figure 5 , Figure 6 , Figure 7 and Figure 8 The unloading portion 42 includes a spring rod 2 421 symmetrically fixedly arranged on one side of the storage box 411 away from the corresponding support 3 along its length direction and located below the corresponding through slot, and a connecting plate 3 that moves along the width direction of the corresponding storage box 411 is elastically slidably arranged on the spring rod 2 421 corresponding to the same through slot, and an upper supporting plate 422 that is slidably plugged into the corresponding through slot is fixedly arranged on the upper side of the connecting plate 3, and one end of the upper supporting plate 422 away from the corresponding connecting plate 3 is an inclined surface, and an L-shaped connecting frame 423 is fixedly arranged on the side of the connecting plate 3 close to the corresponding wedge-shaped pressing block 413 through a connecting rod 1 symmetrically arranged up and down, and the L-shaped A lower support plate 424 located below the material storage box 411 is fixedly provided on one side of the vertical section of the connecting frame 423 near the corresponding upper support plate 422 through a second connecting rod, and a spring rod three 425 that moves along the length direction of the corresponding material storage box 411 is elastically slidably provided on one end of the lower support plate 424 near the corresponding upper support plate 422, and a wedge-shaped follower block 426 that is pressed and matched with the inclined surface of the corresponding wedge-shaped pressure block 413 and is transmission matched with the corresponding blocking column 244 is fixedly provided on one end of the spring rod three 425 near the corresponding L-shaped connecting frame 423, and the side of the wedge-shaped follower block 426 near the corresponding wedge-shaped pressure block 413 is an inclined surface.

[0048] The corresponding return frame 241 is driven to move to the rearmost end of the machine tool frame 1 by the moving platform 1 213 or the moving platform 224, and then the connecting plate 1 and the two symmetrical storage boxes 411 are driven to move synchronously from one end of the guide rail 133 to the other end by the electric slider 134; when the left storage box 411 moves to the left, the wedge-shaped follower block 426 on the corresponding lower support plate 424 below the left storage box 411 will be sequentially transmitted and matched with the corresponding stop column 244 installed on the front and rear symmetrical positioning platform 243. With the continuous driving of the electric slider 134, the plane on the left side of the left wedge-shaped follower block 426 is blocked by the corresponding stop column 244 and cannot continue to move to the left, and the spring rod 3 425 on the left wedge-shaped follower block 426 causes 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 be synchronously moved. When the left side lower support plate 424 is completely moved away, the lower end of the left side storage box 411 is aligned with a corresponding set of positioning grooves 242, and the longitudinal steel bar at the lower end of the left side storage box 411 accurately falls into the set of positioning grooves 242 and is stably positioned and placed under the limit of the corresponding positioning platform 243, and the upper support plate 422 on the left side also supports all the steel bars above the longitudinal steel bars.

[0049] As the left storage box 411 continues to move left, the inclined surface on the wedge-shaped pressing block 413 that moves left synchronously is closely attached to and pressed against the inclined surface on the corresponding wedge-shaped driven block 426, and the left wedge-shaped driven block 426 and the spring rod three 425 are pressed in the direction of the corresponding lower supporting plate 424 until the plane on the left side of the left wedge driven block 426 is disengaged from the corresponding blocking column 244. At this time, under the action of the spring rod two 421, the upper supporting plate 422 and the lower supporting plate 424 on the left are synchronously moved and reset, and the lower supporting plate 424 supports all the remaining longitudinal steel bars in the left storage box 411 again, and the left wedge driven block 426 is also pressed against The corresponding wedge-shaped pressure block 413 disengages and moves to reset under the action of the spring rod three 425, wherein the wedge-shaped pressure block 413 will not come into contact with the corresponding blocking column 244. Thus, through the above-mentioned method, the left storage box 411 can be continuously moved to the left to position the longitudinal steel bars from right to left in sequence in each group of corresponding positioning grooves 242 on the corresponding return frame 241, and the blocking column 244 on the positioning platform 243 at a specific position can be removed to prevent the storage box 411 from feeding steel bars into the corresponding positioning grooves 242, thereby flexibly controlling the placement density of the steel bars on the steel mesh plate, wherein 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 to the left synchronously with the left storage box 411, the inclined surface on the right wedge-shaped follower block 426 contacts and presses the corresponding stop post 244 in turn, and the wedge-shaped follower block 426 on the right 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 spring rod three 425. In this way, the right storage box 411 will not feed materials during the left movement; and when the left-right symmetrical storage boxes 411 move synchronously from left to right, the longitudinal steel bars can be positioned from right to left in each group of corresponding positioning grooves 242 on the corresponding return frame 241 through the storage box 411 on the right, and at the same time, the left storage box 411 will not feed materials.

[0051] When the movable table 1 213 or the movable table 224 drives the corresponding return frame 241 to move forward from the rear side of the storage box 411 on the U-shaped table 32, the blocking column 244 installed on the left-right symmetrical positioning table 243 on the return frame 241 is then sequentially matched with the plane transmission on the rear side of the corresponding wedge-shaped driven block 426 on the storage box 411, so that the storage box 411 can position the internal transverse steel bars from front to back in each group of corresponding positioning grooves 242 on the corresponding return frame 241, and when the lower end of the storage box 411 is aligned with a group of corresponding positioning grooves 242 on the rear side and the transverse steel bars are placed, each welding node on the adjacent transverse steel bars on the front side that have been positioned and placed is exactly aligned with the corresponding welding head 333.

[0052] The above-mentioned operation method can realize the fully automatic adaptive positioning and placement of the horizontal and longitudinal steel bars, and can adaptively adjust the placement density of the horizontal and longitudinal steel bars according to the load-bearing requirements of the required steel mesh, thereby not only improving the flexibility and efficiency of the overall placement of the horizontal and longitudinal steel bars, but also greatly reducing the overall work burden of the operator and reducing the overall labor cost.

[0053] When the steel mesh is to be welded, the movable platform 224 with the completed longitudinal steel bars on the corresponding return frame 241 is first moved from the rear to the front until the roller 225 moves to the rear end of the horizontal groove 1, and at the same time, the movable platform 1 213 supporting the welded steel mesh on the corresponding return frame 241 is moved from the front to the rear to the rear end of the machine tool frame 1, and the welded steel mesh is first removed by the unloading device, and then the two rear storage boxes 411 are synchronously moved in a specific direction along the guide rail 133 to evenly place the required number of longitudinal steel bars in the return frame 241 on the upper side of the movable platform 1 213, and at the same time, the movable platform 224 continues to move forward from the rear side of the storage box 411 on the U-shaped platform 32, and the storage box 411 on the U-shaped platform 32 is continuously swung into the return frame 241 on the upper side of the movable platform 224 The transverse steel bars are placed, and at the same time, the hydraulic cylinder 331 drives each welding head 333 to move up and down synchronously and continuously, so that each welding head 333 respectively performs welding processing on each transverse steel bar that has been positioned and aligned in turn, thereby realizing the positioning and placement of the rear transverse steel bars and the welding processing of the front transverse steel bars synchronously, until the welding of the steel mesh on the movable platform 224 is completed, and then the movable platform 224 is moved backward again until the roller 225 moves from the rear end of the horizontal groove 1 into the upper end of the front oblique groove on the U-shaped groove. At this time, the steel mesh in the return frame 241 on the movable platform 1 213 has been unloaded and the longitudinal steel bars have also been placed, so that the movable platform 1 213 moves forward again until the initial position is exchanged with the movable platform 2 224, and then the above operation is repeated to realize the continuous production of the steel mesh.

[0054] The above-mentioned operation method can not only realize the simultaneous positioning and placement of the transverse steel bars and welding processing, but also can realize the simultaneous positioning and placement of the longitudinal steel bars on the rear return frame 241 while the front steel mesh is being welded, thereby not only greatly improving the overall welding processing efficiency of the steel mesh, but also greatly reducing the frequency of the overall steel mesh processing window period, while also improving the overall equipment utilization efficiency and the overall production capacity limit.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar welding device for prefabricated building parts, comprising a machine tool frame, characterized in that: The machine tool frame is provided with a conveying mechanism for conveying horizontal and vertical steel bars forward and backward, the front side of the machine tool frame is provided with a welding mechanism for performing one-time welding of all nodes of the horizontal steel bars, and the rear side of the machine tool frame and the welding mechanism are jointly provided with a feeding mechanism for positioning and placing the horizontal and vertical steel bars respectively; The machine tool frame comprises main beams evenly distributed front and back, a supporting part 1 is commonly arranged on the upper side of all the main beams, and a supporting part 2 is arranged on the rear side of the supporting part 1; The conveying mechanism includes a horizontal conveying part, a lifting conveying part and a guide part matched with the lifting conveying part, which are arranged on the supporting part, and a steel bar positioning part is arranged on the horizontal conveying part and the lifting conveying part; The welding mechanism comprises fixed plates fixedly arranged on opposite sides of the left-right symmetrical longitudinal beam 1, a U-shaped platform with an opening facing downwards fixedly arranged on the upper side of the left-right symmetrical fixed plates, and a node welding part is arranged on the U-shaped platform; The unloading mechanism includes a storage part arranged at the rear side of the node welding part for storing longitudinal steel bars, and the supporting part 2 is also symmetrically provided with a storage part for storing transverse steel bars, and the storage part is symmetrically provided with a unloading part for dropping steel bars along the length direction.

2. The steel bar welding device for prefabricated building parts according to claim 1 is characterized in that: The supporting part 1 includes a column 1 which is symmetrically fixed on the upper side of the corresponding main beam, a longitudinal beam 1 is fixedly arranged on the upper end of the column 1 evenly distributed front and back near the center of the main beam, and a longitudinal beam 2 is symmetrically fixedly arranged on the upper side of all the main beams and located between the columns 1.

3. The steel bar welding device for prefabricated building parts according to claim 2 is characterized in that: The supporting part two comprises two columns which are symmetrically fixed front and back on opposite sides of a left-right symmetrical longitudinal beam one, a secondary beam is fixedly arranged on the upper end of the two left-right symmetrical columns close to the rearmost main beam, a guide rail one is installed on the opposite side of the front-back symmetrical secondary beam, an electric slider one which moves left and right is symmetrically slidably arranged on the guide rail one, and a connecting plate one is fixedly arranged on the side of the left-right symmetrical electric slider one which is away from the corresponding guide rail one.

4. The steel bar welding device for prefabricated building parts according to claim 2 is characterized in that: The horizontal conveying part includes two guide rails fixedly arranged on opposite sides of a left-right symmetrical longitudinal beam, two electric sliders that move forward and backward are symmetrically slidably arranged on the two guide rails, U-shaped connecting plates are fixedly arranged on opposite sides of the two left-right symmetrical electric sliders, and a moving platform is fixedly arranged between all the U-shaped connecting plates.

5. The steel bar welding device for prefabricated building parts according to claim 4 is characterized in that: The lifting and conveying part includes a guide rail three fixedly arranged on the upper side of a longitudinal beam two, an electric slider three that moves forward and backward is symmetrically slidably arranged on the guide rail three, a connecting plate two is fixedly arranged on the upper side of the front-back symmetrical electric slider three, a U-shaped supporting plate with an opening facing downward is fixedly arranged on the upper side of the left-right symmetrical connecting plate two, a spring rod one that moves up and down is elastically slidably arranged left-right symmetrically on the horizontal section of the U-shaped supporting plate, a moving platform two is fixedly arranged on the upper end of the left-right symmetrical spring rod one, and rollers are symmetrically rotated on the left and right sides of the moving platform two through a support one.

6. The steel bar welding device for prefabricated building parts according to claim 5 is characterized in that: The guide part includes a plurality of support rods which are evenly fixedly arranged front and back through a support two on the opposite sides of a left-right symmetrical longitudinal beam; a guide frame is fixedly arranged on the upper ends of the plurality of support rods evenly distributed front and back; a guide groove which passes through the left and right sides and is slidably matched with the corresponding roller is opened on the guide frame; the guide groove is composed of a horizontal groove 1 and a U-shaped groove which are distributed front and back and connected to each other; the U-shaped groove opens upward and is composed of a horizontal groove 2 and an oblique groove which is symmetrical front and back.

7. The steel bar welding device for prefabricated building parts according to claim 5 is characterized by: The steel bar positioning part includes a return-shaped frame fixedly arranged on the upper side of the movable platform 1 and the movable platform 2, and a plurality of groups of positioning grooves are evenly arranged on the return-shaped frame, and each group is composed of positioning grooves corresponding to each other and symmetrically distributed. A plurality of positioning platforms located outside the corresponding return-shaped frames and corresponding to the positioning grooves one by one are evenly fixedly arranged on the upper side of the movable platform 1 and the movable platform 2, and a detachable blocking column is installed on the upper side of the positioning platform.

8. The steel bar welding device for prefabricated building parts according to claim 1, characterized in that: The node welding part includes a hydraulic cylinder symmetrically fixed on the upper side of the horizontal section of the U-shaped platform. The telescopic ends of the symmetrical hydraulic cylinders are jointly fixed with a lifting platform that moves up and down and is slidably connected to the vertical section of the U-shaped platform. Multiple welding heads are evenly installed on the left and right sides of the lower side of the lifting platform.

9. The steel bar welding device for prefabricated building parts according to claim 7, characterized in that: The material storage portion includes a material storage box installed on the rear side of the horizontal section of the U-shaped platform, and a material storage box is also symmetrically installed between the front and rear symmetrical connecting plates, wherein the material storage box installed on the rear side of the horizontal section of the U-shaped platform and the material storage box symmetrically installed between the front and rear symmetrical connecting plates are vertically distributed, a feeding hopper is fixedly arranged on the upper side of the material storage box, and through grooves that penetrate along the width direction are symmetrically opened on the material storage box along its length direction, an L-shaped connecting rod is symmetrically fixedly arranged on the material storage box along its length direction through a support three, a wedge-shaped pressure block is fixedly arranged on the lower end of the vertical section of the L-shaped connecting rod, and the side of the wedge-shaped pressure block close to the corresponding material storage box is an inclined surface.

10. The steel bar welding device for prefabricated building parts according to claim 9, characterized in that: The lower material part includes a spring rod two that is symmetrically fixed along the length direction of the corresponding support three on one side of the material storage box, and is located below the corresponding through slot. The spring rod two that corresponds to the same through slot is elastically slidably provided with a connecting plate three that moves along the width direction of the corresponding material storage box, and an upper support plate three that is fixedly provided on the connecting plate three and is slidably inserted into the corresponding through slot. The upper side of the connecting plate three is fixedly provided with an inclined surface that is away from the corresponding connecting plate three and is slidably inserted into the corresponding through slot. The upper side of the connecting plate three is fixedly provided with an L-shaped connecting frame, and one side of the connecting plate three that is close to the corresponding wedge-shaped pressure block is fixedly provided with a lower support plate located below the material storage box through an upper and lower symmetrical connecting rod one. The vertical section of the L-shaped connecting frame is fixedly provided with a lower support plate located below the material storage box through a connecting rod two that is symmetrically arranged. The lower support plate is elastically slidably provided with a spring rod three that moves along the length direction of the corresponding material storage box, and one end of the spring rod three that is close to the corresponding L-shaped connecting frame is fixedly provided with a wedge-shaped driven block that is pressed and matched with the inclined surface of the corresponding wedge pressure block and is transmitted with the corresponding stop column, and one side of the wedge follower block that is close to the corresponding wedge pressure block is an inclined surface.

Images