Automatic welding equipment for truss group

Abstract

The utility model discloses automatic welding equipment for truss groups, which comprises a welding platform, a turnover frame is arranged on one side of the welding platform, a plurality of groups of trusses can be stacked on the turnover frame, a steel bar storage frame is arranged on the other side of the welding platform, and the steel bar storage frame is used for storing steel bar cross beams used for welding the truss groups; a movable first grabbing assembly, a movable second grabbing assembly and a movable welding assembly are arranged above the welding platform, the first grabbing assembly can grab a plurality of trusses which are stacked on the turnover frame and are at the same height at the same time and place the trusses on the welding platform, and the reinforcing steel bar storage frame can insert reinforcing steel bar cross beams into the upper portions of the trusses on the welding platform. The welding assembly can weld the steel bar cross beam and the multiple trusses together to form a truss set, and the second grabbing assembly can grab the welded truss set and place the welded truss set in a storage area to be stored. The welding device is ingenious in structural design, high in automation degree and stable and reliable in welding quality, and the production efficiency of the truss group is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building engineering especially, relate to a truss group automatic welding equipment. BACKGROUND

[0002] At present, in order to accelerate construction progress and save material, steel bar truss floor is favored by engineering circle, and is applied more and more in engineering. Among them, steel bar truss floor support plate is to process steel bar in factory into steel bar truss, process galvanized steel plate into profiled steel plate, then weld steel bar truss and galvanized steel plate into integrated combined floor through resistance spot welding, replace formwork scaffold to bear construction load in construction stage, and upper steel bar participates in structure stress in use stage, so it is an economic, convenient, safe and reliable building floor material.

[0003] In recent years, the form of steel bar truss floor support plate is more and more diversified, mainly including metal formwork and wooden formwork, and the metal bottom die can be removed or not removed, and the wooden formwork generally needs to be removed. However, if the bottom plate is removed, it is time-consuming and laborious, and the concrete will be exposed, which needs to be whitewashed after plastering. If the bottom plate is not removed, the metal bottom die cannot be whitewashed, so a suspended ceiling is needed to cover the bottom die. Therefore, in view of the above technical problems, the applicant has developed a detachable truss plate, which embeds the lower part of the steel bar truss in the concrete slurry, and realizes the connection with the steel bar truss after the concrete slurry is solidified and formed. That is, the connection between the bottom plate and the steel bar truss is completed during the production of the concrete bottom plate, which not only avoids the complex structure of the bottom plate due to the connection of the connecting part of the steel bar truss, but also reduces the installation of additional connecting parts and the workload of connecting the steel bar truss and the bottom plate through the connecting parts.

[0004] In the production of the above truss plate, the steel bar truss is usually placed in the mold one by one, then the concrete slurry is laid in the mold, and after vibrating and compacting and smoothing, it is formed. The formed truss plate can be used in building engineering. However, in actual production and processing, if the steel bar truss is placed one by one by manual labor, the labor intensity of workers is large, the production efficiency is low, and the consistency of the spacing and height of the truss cannot be guaranteed, thereby affecting the quality of the final truss plate. Therefore, the applicant welds multiple steel bar trusses to form a truss group, only one truss group needs to be placed in the mold, which effectively improves the production efficiency of the truss plate. However, the truss plate is mass-produced, and manual welding of the truss group still brings the problems of high labor intensity of workers and low production efficiency. In addition, it also depends on the welding technology of workers, therefore, it is urgent to design a truss group automatic welding equipment to improve the welding efficiency and quality of the truss group. SUMMARY

[0005] This utility model provides an automatic welding equipment and manufacturing process for truss assemblies, which has the advantages of high production efficiency and high dimensional consistency. The specific technical solution is as follows:

[0006] An automatic welding device for truss assemblies includes a welding platform, a turnover rack on one side of the welding platform on which multiple truss assemblies can be stacked, and a rebar storage rack on the other side of the welding platform for storing the rebar beams used in welding the truss assemblies. Above the welding platform are movable first gripping components, second gripping components, and a welding component. The first gripping component can simultaneously grip multiple trusses of the same height stacked on the turnover rack and place them on the welding platform. The rebar storage rack can insert the rebar beams into the upper interior of multiple trusses on the welding platform. The welding component can weld the rebar beams to the multiple trusses together to form a truss assembly. The second gripping component can grip the welded truss assembly and place it in a storage area for storage.

[0007] Furthermore, the turnover rack includes a base, with multiple columns symmetrically spaced at both ends along the length of the base. A placement space is formed between two adjacent columns. A support frame matching the shape of the truss is provided at the bottom of the placement space. The support frame can support the truss. Multiple sets of trusses can be stacked in the placement space, so that multiple trusses can be evenly distributed on the same horizontal plane for the first gripping component to grip.

[0008] Furthermore, there are two sets of clamping and positioning components above the welding platform. These two sets of clamping and positioning components are symmetrically arranged above the welding frame to clamp and fix multiple sets of trusses on the welding frame.

[0009] Furthermore, a crossbeam support assembly is provided above the welding platform. The crossbeam support assembly includes multiple rollers with V-grooves on their surfaces. The V-grooves on the surfaces of the multiple rollers are on the same straight line. The rebar storage rack can push the rebar crossbeam into the V-grooves on the surface of the rollers, and the multiple rollers together support the rebar crossbeam.

[0010] Furthermore, the first gripping component, the second gripping component, and the welding component are movably mounted on the main frame. The main frame includes a main frame, which is positioned above the welding platform and the rebar storage rack. Main support legs extend downward around the main frame and are fixedly connected to the ground, thereby covering the welding platform, the turnover rack, and the rebar storage rack with the main frame.

[0011] Furthermore, a first movable frame and a second movable frame are provided within the main frame. The first movable frame and the second movable frame can move left and right within the main frame. The first gripping component and the welding component are mounted on the first movable frame and can move back and forth on the first movable frame. The second gripping component is mounted on the second movable frame and can move back and forth on the second movable frame.

[0012] Further, the welding assembly comprises an upper welding assembly and a lower welding assembly, the upper welding assembly is arranged on the main frame and can move up and down relative to the main frame, the lower welding assembly is arranged on the welding platform and can move up and down relative to the welding platform, the upper welding assembly and the lower welding assembly can simultaneously abut against the truss and the steel bar cross beam and complete welding.

[0013] Further, the first grabbing assembly comprises a jaw seat, a plurality of jaw assemblies are arranged on the front and back sides of the jaw seat, a jaw sliding frame is connected with a jaw sliding table, the jaw sliding table is slidingly arranged on the first moving frame, and the jaw sliding frame can move up and down relative to the jaw sliding table to drive the jaw seat and the jaw assemblies to move up and down.

[0014] Further, the jaw assembly comprises two jaws which are symmetrically arranged left and right, the two jaws are respectively hingedly connected with a starting plate, the two starting plates are connected with a jaw cylinder, and the extension and contraction of the jaw cylinder can drive the two jaws to open and close left and right.

[0015] Further, the steel bar storage rack comprises a bottom plate, a plurality of seat plates are fixedly arranged on the bottom plate and arranged vertically and obliquely, the plurality of seat plates are arranged in parallel, a steel bar placing table is arranged on the side edge of the seat plate, and the steel bar placing table can place the steel bar cross beam; a pushing table is arranged on the top of the seat plate, a sliding plate is slidingly arranged on the side of the seat plate, a jacking table is arranged on the side edge of the sliding plate, when the sliding plate slides from bottom to top, the jacking table can lift the steel bar cross beam in the steel bar placing table into the pushing table, and a pushing block assembly is arranged above the pushing table, and the pushing block assembly can push the steel bar cross beam in the pushing table out to the welding platform.

[0016] The truss group automatic welding equipment has the advantages that the plurality of trusses on the turnover frame can be simultaneously grabbed by the grabbing assembly and placed on the welding platform, the steel bar cross beam used for welding of the plurality of trusses on the welding platform is automatically provided by the steel bar storage rack, the plurality of trusses and the steel bar cross beam are accurately positioned by cooperating with the clamping and positioning assembly, the truss supporting assembly and the cross beam supporting assembly on the welding platform, the truss and the steel bar cross beam are welded by the welding assembly which pushes down and presses up, the welding quality is stable and reliable, the truss group after welding can be placed on the finished product placing rack by the grabbing assembly for storage, and the production efficiency of the truss group is greatly improved.

[0017] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the specific implementation manner of the utility model is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to limit the present inventive subject matter thereto. Like reference numerals are used to indicate like components throughout the several views. In the drawings:

[0019] Figure 1 It is a perspective view of the truss group automatic welding equipment of the present application;

[0020] Figure 2 It is a perspective view of the turnover frame placed on the turnover seat of the present application;

[0021] Figure 3 It is a perspective view of the turnover frame of the present application;

[0022] Figure 4 It is a perspective view of the turnover seat of the present application;

[0023] Figure 5 It is a perspective view of the welding platform of the present application;

[0024] Figure 6 It is a schematic view of the lower welding assembly and the cross beam supporting assembly of the present application;

[0025] Figure 7 It is a schematic view of the connection of the upper welding assembly and the first grabbing assembly with the moving frame of the present application;

[0026] Figure 8 It is a perspective view of the clamping jaw seat of the present application;

[0027] Figure 9 It is an enlarged view of A part of Figure 8 ;

[0028] Figure 10 It is a schematic view of the connection point position of the truss clamped by the clamping jaw;

[0029] Figure 11 It is a schematic view of the installation of the trigger assembly of the present application;

[0030] Figure 12 It is a perspective view of the steel bar storage rack of the present application;

[0031] Figure 13 It is a schematic view of the sliding plate of the present application in the initial position;

[0032] Figure 14 It is an enlarged view of B part of Figure 13 ;

[0033] Figure 15 It is an enlarged view of C part of Figure 13 ;

[0034] Figure 16 Fig. 2 is a schematic view of the sliding plate of the utility model in the initial position moving to the lifting position;

[0035] Figure 17 Fig. 3 is a schematic view of the sliding plate of the utility model in the lifting position;

[0036] Figure 18 Fig. 4 is a schematic view of the sliding plate of the utility model in the lifting position moving to the initial position;

[0037] Figure 19 Fig. 5 is a schematic view of the sliding plate of the utility model returning to the initial position;

[0038] Figure 20 Fig. 6 is a D part enlarged view of the utility model; Figure 19

[0039] Figure 21 Fig. 7 is a use state diagram of the reinforcing steel bar storage rack of the utility model. DETAILED DESCRIPTION

[0040] In order to better understand the purpose, function and specific design scheme of the utility model, the truss group automatic welding equipment of the utility model will be further described in detail below in combination with the drawings.

[0041] As shown in Figures 1-21 , the truss group automatic welding equipment of the utility model comprises a welding platform 2, a turnover rack 3 is arranged on one side of the welding platform 2, multiple trusses can be stacked on the turnover rack 3, a reinforcing steel bar storage rack 1 is arranged on the other side of the welding platform 2, and the reinforcing steel bar storage rack 1 is used for storing reinforcing steel bar cross beams used for welding truss groups; a movable first grabbing assembly 4, a second grabbing assembly 5 and a welding assembly 6 are arranged above the welding platform 2, the first grabbing assembly 4 can grab multiple trusses of the same height stacked on the turnover rack 3 at the same time and place them on the welding platform 2, the reinforcing steel bar storage rack 1 can insert the reinforcing steel bar cross beam into the inside of multiple trusses above the welding platform 2, the welding assembly 6 can weld the reinforcing steel bar cross beam 8 and the multiple trusses together to form a truss group, and the second grabbing assembly 5 can grab the welded truss group and place it in a storage area for storage.

[0042] Specifically, as Figures 2-4 ​As shown, the turnover frame 3 comprises a base 31, a plurality of columns 32 are symmetrically and spaced apart on the upper length direction of the base 31, a placement space is formed between adjacent two columns 32, and a support seat 34 matching the shape of the truss is arranged at the bottom of the placement space, which can support the truss to prevent the lower truss from being compressed and deformed due to the gravity of the upper truss. The truss of the embodiment is a three-mitsubishi column, and therefore, the support seat 34 is also a three-mitsubishi column. A plurality of trusses can be stacked in the placement space, so that a plurality of trusses can be uniformly distributed on the same horizontal plane, waiting to be grabbed by the first grabbing assembly 4 and placed on the welding platform 2 for welding.

[0043] Specifically, as shown in the drawings, Figure 2 A truss limiting plate 33 is arranged on the column 32, and the width of the truss limiting plate 33 is greater than the width of the column 32, so that the truss contacts the truss limiting plate 33, thereby reducing the contact area of the truss with the turnover frame 3 and the friction with the turnover frame 3, to facilitate the removal of the truss.

[0044] In order to facilitate the placement of the truss on the turnover frame 3, a guide portion 331 is arranged above the truss limiting plate 33, that is, a straight chamfer is arranged above the truss limiting plate 33, and the straight chamfers above adjacent two truss limiting plates 33 form a horn-shaped guide portion 331 with a narrow lower part and a wide upper part, thereby guiding the truss to be placed, to facilitate the placement of the truss.

[0045] Preferably, when the trusses stored on the turnover frame 3 are taken out, in order to facilitate timely and rapid addition of trusses, the embodiment adopts a whole turnover frame 3 replacement mode, that is, the empty turnover frame 3 is taken away, and the turnover frame 3 filled with trusses is directly replaced. Therefore, in order to facilitate the carrying of the turnover frame 3, a plug-in portion 37 for forklift insertion is arranged below the turnover frame 3, and the turnover frame 3 is carried by the forklift.

[0046] In order to reduce the burden of the forklift during carrying, the base 31 of the embodiment is a rectangular frame to reduce the weight of the base 31, and a reinforcing beam 35 is arranged at the middle position of the rectangular frame to enhance the strength of the base 31 and avoid deformation of the base 31.

[0047] Preferably, as shown in the drawings, Figure 4As shown, in order to facilitate the positioning of the turnover rack 3, the turnover rack 3 is arranged on the turnover seat 36 which is fixed on the ground so that the first grabbing assembly 4 can accurately grab the truss on the turnover rack 3. The bottom of the turnover seat 36 is provided with a plurality of turnover seat fixing plates 361, and the turnover seat fixing plates 361 are provided with fixing holes, and bolts can be connected in the fixing holes to realize the fixation of the turnover seat 36. It is worth noting that the turnover seat 36 is provided with a positioning baffle 362, and the end of the positioning baffle 362 away from the turnover seat 36 extends outwardly and obliquely, and the end of the turnover rack 3 away from the forklift can be placed on the positioning baffle 362 first, and then the end of the turnover rack 3 away from the forklift is first slid onto the turnover seat 36, and finally the forklift is withdrawn. In this way, the forklift can conveniently place the turnover rack 3 on the turnover seat 36 and position the turnover rack 3.

[0048] As shown in the figure, Figures 5-7 The welding platform 2 includes a welding rack 21, and the upper ends of both ends of the welding rack 21 are respectively provided with a clamping positioning assembly 25, a truss supporting assembly 26 and a beam supporting assembly 27. The clamping positioning assembly 25 can position and clamp a plurality of trusses placed on the welding rack 21, so that the ends of the plurality of trusses are aligned and fixed on the welding rack 21 to be welded with the steel reinforcement beam 8. The truss supporting assembly 26 can support the truss, and the beam supporting assembly 27 is used to support the steel reinforcement beam 8.

[0049] The welding rack 21 includes a rectangular upper rack 211 and a lower rack 212. The upper rack 211 includes four upper legs, and the lower rack 212 includes four lower legs. The upper legs are sleeved on the lower legs and can slide relative to the lower legs, so as to adjust the height of the four corners of the upper rack 211 to ensure the levelness of the upper surface of the upper rack 211. In order to facilitate the adjustment of the upper rack 211, a lifting machine 213 is arranged on the lower rack 212. The movable end of the lifting machine 213 is connected with the upper leg, and the height of the upper leg is automatically adjusted by the lifting machine 213. The lifting machine 213 can be a conventional turbine screw lifting machine 213.

[0050] The clamping positioning assembly 25 is provided in two groups, and the two groups of clamping positioning assemblies 25 are symmetrically arranged above the welding rack 21 to clamp and fix a plurality of trusses on the welding rack 21. The clamping positioning assembly 25 includes a positioning cylinder 251 and a positioning plate 252. The positioning cylinder 251 is connected with the positioning plate 252, and the positioning cylinder 251 can drive the positioning plate 252 to move, so as to push a plurality of trusses to align the ends of the plurality of trusses. The positioning cylinder 251 of the embodiment is two to improve the pushing force and clamping force of the positioning plate 252. The two positioning cylinders 251 are connected with a cylinder seat 253, and the two ends of the cylinder seat 253 are connected with the positioning plate 252 through bolts and nuts. The angle of the positioning plate 252 is adjusted by adjusting the position of the nut, so as to ensure that the ends of the plurality of trusses are aligned.

[0051] It is worth noting that in order to make two sets of clamping positioning assembly 25 can be positioned clamping truss of different length specifications. One set of clamping positioning assembly 25 of the embodiment is fixedly arranged above the welding frame 21, and the other set of clamping positioning assembly 25 is connected with the moving seat 28, which can drive the clamping positioning assembly 25 to move on the welding frame 21, so as to cooperate with the fixedly arranged clamping positioning assembly 25 to clamp and position trusses of different length specifications. Specifically, the moving seat 28 is arranged below the welding platform 2, the movably arranged clamping positioning assembly 25 is connected with the positioning bracket 254, one end of the positioning bracket 254 is connected with the positioning cylinder 251, and the other end is fixedly connected with the moving seat 28, so as to realize the connection between the clamping positioning assembly 25 and the moving seat 28.

[0052] The truss supporting assembly 26 comprises a supporting frame 261 matched with the shape of the truss. The truss and the supporting frame 261 of the embodiment are both triangular prisms. The supporting frame 261 is arranged on the welding frame 21 and can support the truss. In order to support trusses of different length specifications, the truss supporting assembly 26 of the embodiment is provided in two sets. One set of truss supporting assembly 26 is fixedly arranged above the welding frame 21, and the other set of truss supporting assembly 26 is fixedly connected with the supporting plate 262. The supporting plate 262 is slidably arranged on the upper surface of the welding frame 21. The supporting plate 262 is connected with the moving seat 28 through the supporting column 263. The moving seat 28 can drive the truss supporting assembly 26 to move on the welding frame 21, so as to cooperate with the fixedly arranged truss supporting assembly 26 to support trusses of different length specifications.

[0053] The beam supporting assembly 27 comprises a plurality of rollers 271, the surfaces of the rollers 271 are provided with V-shaped grooves, the V-shaped grooves on the surfaces of the plurality of rollers 271 are on the same straight line, the reinforcing steel bar storage rack 1 can push the reinforcing steel bar beam 8 into the V-shaped grooves on the surfaces of the rollers 271, and the plurality of rollers 271 jointly support the reinforcing steel bar beam 8 to be welded together with a plurality of trusses by the welding assembly 6 to form a truss group. It is worth noting that in order to limit the distance that the reinforcing steel bar storage rack 1 pushes the reinforcing steel bar beam 8, the beam supporting assembly 27 comprises a limiting baffle assembly 272, which is arranged on the side of the welding frame 21 away from the reinforcing steel bar storage rack 1 and corresponds to the connecting line of the V-shaped grooves on the surfaces of the plurality of rollers 271, so that the reinforcing steel bar storage rack 1 can abut against the limiting baffle assembly 272 when pushing the reinforcing steel bar beam 8. The limiting baffle assembly 272 comprises a stop baffle connected with a stop cylinder, which can adjust the position of the stop baffle to adapt to reinforcing steel bar beams 8 of different length specifications.

[0054] The roller 271 is connected with the roller seat 273, the roller seat 273 is connected with the roller support 274, and the roller support 274 is used for fixing the roller seat 273. Preferably, in order to avoid the deviation of the reinforcing bar storage rack 1 when the reinforcing bar storage rack 1 pushes the reinforcing bar beam 8 into the V-shaped groove of the roller 271, the guiding baffle 275 is arranged on the upper side of the roller seat 273.

[0055] The beam supporting assembly 27 in the embodiment is two groups, which are used for welding two reinforcing bar beams 8 at the same time. In order to make the two groups of beam supporting assemblies 27 can weld trusses with different length specifications, the roller support 274 of one group of beam supporting assemblies 27 is fixed on the fixed seat 29, the fixed seat 29 is fixedly connected with the lower rack 212 of the welding platform 2, so as to realize the fixation of the roller 271 on the upper surface of the welding rack 21. The roller support 274 of the other group of beam supporting assemblies 27 is fixed on the moving seat 28, the moving seat 28 can drive the beam supporting assembly 27 to move on the welding rack 21, so as to cooperate with the fixedly arranged beam supporting assembly 27, and provide reinforcing bar beams 8 for welding trusses with different length specifications.

[0056] The fixed seat 29 and the moving seat 28 in the embodiment are arranged below the welding platform 2 and are fixedly connected with the lower rack 212 of the welding platform 2. The moving seat 28 comprises a moving bottom plate 281 and a moving mounting plate 282 connected with each other. The moving bottom plate 281 is provided with a sliding block below, the lower rack 212 is fixedly provided with a linear guide rail assembly below, the sliding block below the moving bottom plate 281 is connected with the linear guide rail assembly and can slide on the linear guide rail assembly, so as to realize the movement of the moving seat 28. Preferably, the lower rack 212 in the embodiment is fixedly provided with a moving seat driving assembly below, the moving seat driving assembly can drive the moving seat 28 to slide on the linear guide rail assembly, and the moving seat driving assembly can be selected from the existing screw structure. The moving mounting plate 282 is used for connecting the truss supporting assembly 26 and the beam supporting assembly 27.

[0057] As Figure 1 and Figure 7As shown, the first grabbing assembly 4, the second grabbing assembly 5 and the welding assembly 6 are movably arranged on the main frame 7, the main frame 7 comprises a main frame 71, the main frame 71 is arranged above the welding platform 2, the turnover rack 3 and the reinforcing steel storage rack 1, and the main frame 71 is extended downward around to form main legs 72 which are fixedly connected with the ground, so that the main frame 71 is covered above the welding platform 2, the turnover rack 3 and the reinforcing steel storage rack 1. The main frame 71 is internally provided with a first moving frame 73 and a second moving frame 74, the first moving frame 73 and the second moving frame 74 can move left and right in the main frame 71, the first grabbing assembly 4 and the welding assembly 6 are arranged on the first moving frame 73, and the first grabbing assembly 4 and the welding assembly 6 can move forward and backward on the first moving frame 73, the second grabbing assembly 5 is arranged on the second moving frame 74, and the second grabbing assembly 5 can move forward and backward on the second moving frame 74.

[0058] Specifically, the main frame 71 of the embodiment is fixedly provided with a rack, the first moving frame 73 and the second moving frame 74 are provided with gears, the gears are connected with driving motors, the gears are driven to rotate by the driving motors, and thus the movement on the main frame 71 is realized.

[0059] The welding assembly 6 of the embodiment is two groups, the welding assembly 6 comprises upper welding assemblies 61 and lower welding assemblies 62, the two groups of upper welding assemblies 61 are arranged on the first moving frame 73 and can move up and down relative to the first moving frame 73, one group of lower welding assemblies 62 is arranged on the fixed seat 29 of the welding platform 2 and can move up and down relative to the welding platform 2, and the other group of lower welding assemblies 62 is arranged on the moving seat 28 of the welding platform 2 and can move up and down relative to the welding platform 2, the upper welding assemblies 61 and the lower welding assemblies 62 can simultaneously abut against the truss and the reinforcing steel cross beam 8 and complete welding.

[0060] The upper welding assembly 61 comprises a plurality of upper electrodes 611, the plurality of upper electrodes 611 are fixed on an upper sliding frame 612, the upper sliding frame 612 is in sliding connection with an upper welding frame 613, the upper welding frame 613 is provided with an upper welding driving assembly, the upper welding driving assembly can drive the upper sliding frame 612 to move up and down, thereby driving the upper electrodes 611 to move up and down, and the upper welding driving assembly is preferably a pneumatic cylinder. It can be understood that the upper welding frame 613 opposite to the lower welding assembly 62 connected with the fixed seat 29 is fixedly arranged on the first moving frame 73, and the upper welding frame 613 opposite to the lower welding assembly 62 connected with the moving seat 28 is slidingly arranged on the first moving frame 73, the first moving frame 73 is provided with an upper welding moving assembly, the upper welding moving assembly can drive the upper welding frame 613 to slide on the first moving frame 73, so that the upper electrodes 611 can be aligned with the welding position. The upper welding moving assembly can be selected from a screw rod structure or a motor linear guide rail, and the existing worm screw lifter is adopted in the embodiment.

[0061] AsFigure 6 As shown, the two groups of lower welding assemblies 62 fixed on the fixed seat 29 and the moving seat 28 are of the same structure, and the lower welding assembly 62 fixed on the fixed seat 29 is taken as an example for description. The lower welding assembly 62 comprises a resistance transformer 63 and a plurality of lower electrodes 621. The resistance transformer 63 is fixed on the fixed seat 29 and connected with the plurality of lower electrodes 621. The lower end of the lower electrode 621 is connected with a lower welding driving assembly 622. The lower welding driving assembly 622 is fixed on the fixed seat 29 and can drive the lower electrode 621 to move up and down. The plurality of lower electrodes 621 can lift the steel beam 8 and abut against the plurality of trusses to be welded. The lower welding driving assembly 622 is preferably a pneumatic cylinder.

[0062] As shown in the figure, Figures 7-9 The first grabbing assembly 4 comprises a jaw seat 41. A plurality of jaw assemblies 42 are arranged on the front and back sides of the jaw seat 41. The jaw seat 41 is connected with a jaw sliding frame 43. The jaw sliding frame 43 is connected with a jaw sliding table 44. The jaw sliding table 44 is slidingly arranged on the first moving frame 73. The jaw sliding frame 43 can move up and down relative to the jaw sliding table 44 to drive the jaw seat 41 and the jaw assembly 42 to move up and down. Specifically, the jaw sliding table 44 is provided with a sliding table fixed plate 45. The two sides of the jaw sliding frame 43 are provided with linear guide rails. The sliding blocks of the linear guide rails are connected with the sliding table fixed plate 45 to realize the sliding connection of the jaw sliding frame 43 and the jaw sliding table 44. The jaw sliding frame 43 is further provided with a jaw lifting assembly. The jaw lifting assembly can drive the jaw sliding frame 43 to lift relative to the jaw sliding table 44. The jaw lifting assembly can adopt an existing worm gear screw lifting machine or other existing driving devices that can realize linear reciprocating motion.

[0063] The first moving frame 73 is provided with a jaw moving assembly. The jaw moving assembly can drive the jaw sliding table 44 to slide on the first moving frame 73 so that the jaw seat 41 can correspond to the middle position of the truss to be grabbed. The jaw moving assembly can adopt an existing worm gear screw lifting machine or other existing driving devices that can realize linear reciprocating motion. Preferably, in order to improve the stability of the movement of the jaw sliding table 44, the first moving frame 73 is provided with a linear guide rail. The jaw sliding table 44 is fixedly connected with the sliding block of the linear guide rail, so that the jaw sliding table 44 can reciprocate on the linear guide rail.

[0064] As shown in the figure, Figure 9As shown, the clamping jaw assembly 42 comprises two clamping jaws 421 arranged symmetrically left and right, and each clamping jaw 421 is connected with a starting plate 422, and the two starting plates 422 are connected with a clamping jaw cylinder 423, and the extension and retraction of the clamping jaw cylinder 423 can drive the two clamping jaws 421 to open and close left and right to realize the grabbing of the truss. The clamping jaw cylinder 423 is fixed on a cylinder mounting plate 424, and the cylinder mounting plate 424 extends in the extension direction of the cylinder and is provided with a hinged arm 425, and the hinged arm 425 is hinged to the middle part of the starting plate 422, and one end of the starting plate 422 is provided with a long hole, and the starting plate 422 is hinged to the output shaft of the clamping jaw cylinder 423 through the long hole, and the other end of the starting plate 422 is connected with the clamping jaw 421, so as to realize the extension and retraction of the clamping jaw cylinder 423 to drive the two clamping jaws 421 to open and close left and right.

[0065] Preferably, as shown in the drawings, Figure 10 As shown, the clamping jaw 421 is hinged to the starting plate 422, and the clamping jaw 421 can freely swing forward and backward relative to the starting plate 422, so that when the clamping jaw 421 grabs the truss, even if the connection point position of the truss is grabbed, the connection point position can be avoided to effectively grab the truss.

[0066] As shown in the drawings, Figure 9 As shown, the cylinder mounting plate 424 is connected with a clamping jaw fixing frame 426, and the clamping jaw fixing frame 426 is fixed on the clamping jaw seat 41, and the cylinder mounting plate 424 can freely float up and down on the clamping jaw fixing frame 426, so that the clamping jaw 421 and the clamping jaw cylinder 423 as a whole can freely float up and down relative to the clamping jaw seat 41 to realize the simultaneous grabbing of multiple trusses with different heights.

[0067] The clamping jaw fixing frame 426 of the embodiment is vertically provided with a floating hole 428, and the cylinder mounting plate 424 is connected with the clamping jaw fixing frame 426 through the floating hole 428 by means of a bolt, and the bolt can move in the floating hole 428, so as to realize the floating connection of the cylinder mounting plate 424 and the clamping jaw fixing frame 426.

[0068] Notably, the hinged arm 425 is fixedly connected with a floating plate 427, and when the clamping jaw 421 grabs the truss, the lower edge of the floating plate 427 abuts against the top of the truss, so that the clamping jaw 421 and the clamping jaw cylinder 423 as a whole can freely float up and down relative to the clamping jaw seat 41.

[0069] Preferably, as shown in the drawings, Figure 11As shown, in order to improve the reliability of the gripper 421 to grab the truss, the gripper base 41 is further provided with a trigger assembly 46, the trigger assembly 46 includes a trigger rod 461, the trigger rod 461 is slidably arranged on the gripper base 41, a travel switch 462 is arranged above the trigger rod 461, the travel switch 462 is arranged in a spaced manner with the trigger rod 461, after the trigger rod 461 is contacted by the truss, the truss can lift the trigger rod 461 relative to the gripper base 41 by a distance, and then abuts the travel switch 462, thereby triggering the gripper cylinder 423 to retract, so that the gripper 421 is closed, and the grabbing of the truss is completed. The trigger rod 461 of the embodiment is vertically provided with a linear guide rail, the slider of the linear guide rail is fixedly connected with the gripper base 41, so as to realize the connection between the trigger rod 461 and the gripper base 41. The gripper base 41 is fixedly provided with a switch bracket 463, and the travel switch 462 is arranged on the switch bracket 463. Preferably, the switch bracket 463 is provided with an adjusting hole 464, and the travel switch 462 is fixed on the switch bracket 463 through the adjusting hole 464, so as to facilitate the adjustment of the distance between the travel switch 462 and the trigger rod 461. In order to improve the reliability of the trigger rod 461, the lower end of the trigger rod 461 is connected with a horizontal rod 465, the horizontal rod 465 can increase the contact area with the truss, so that the trigger assembly 46 works more reliably.

[0070] As shown in the drawings, Figure 1 The second grabbing assembly 5 is the same as the first grabbing assembly 4, and will not be described here. However, it should be understood that since the second grabbing assembly 5 grabs the truss assembly after welding, only two groups of gripper assemblies 42 need to be arranged on the second grabbing assembly 5 to reduce the cost of the equipment. Preferably, the finished product placing rack is arranged on the side of the reinforcing steel bar storage rack 1 away from the welding platform 2, and the second grabbing assembly 5 can grab the truss assembly after welding from the welding platform 2 and place it on the finished product placing rack for storage.

[0071] As shown in the drawings, Figure 12 The reinforcing steel bar storage rack 1 includes a bottom plate 12, a plurality of seat plates 13 are fixedly and vertically arranged on the bottom plate 12, the plurality of seat plates 13 are arranged in parallel, a reinforcing steel bar placing table 131 is arranged on the side edge of the seat plate 13, and the reinforcing steel bar placing table 131 can place the reinforcing steel bar beam 8; a pushing table 132 is arranged on the top of the seat plate 13, a sliding plate 14 is slidably arranged on the side of the seat plate 13, a jacking table 141 is arranged on the side edge of the sliding plate 14, when the sliding plate 14 slides from bottom to top, the jacking table 141 can lift the reinforcing steel bar beam 8 in the reinforcing steel bar placing table 131 to the pushing table 132, a pushing block assembly 161 is arranged above the pushing table 132, and the pushing block assembly 161 can push the reinforcing steel bar beam 8 in the pushing table 132 to the position to be welded. Preferably, the seat plate 13 is fixedly connected with a pushing baffle 162 matched with the shape of the pushing table 132, the pushing baffle 162 and the pushing table 132 form a pushing groove, so as to increase the contact area of the reinforcing steel bar beam 8 to be pushed and avoid the reinforcing steel bar beam 8 from falling.

[0072] Specifically, such as Figures 13-20 As shown, the sliding plate 14 includes an initial position and a lifting position. The sliding plate 14 can move repeatedly between the initial position and the lifting position to lift the steel bar beams 8 in the steel bar placement platform 131 one by one into the pushing platform 132. In this embodiment, the rebar placement platform 131 includes a placement surface 1311 and a stop surface 1312 connected together. The lifting platform 141 includes a bearing surface 1411 and a limiting surface 1412 connected together. The pushing platform 132 includes a rolling surface 1321 and a stopping surface 1323 connected together. When the sliding plate 14 is in the initial position, the bearing surface 1411 is parallel to the placement surface 1311 and located below the placement surface 1311. The limiting surface 1412 is parallel to the stop surface 1312 and located in front of the stop surface 1312. When the sliding plate 14 moves from the initial position to the lifting position, the bearing surface 1411 lifts the rebar beam 8 in the rebar placement platform 131 and moves it upward. It is worth noting that the distance between the limiting surface 1412 and the stop surface 1312 is greater than the radius of the rebar beam 8 and less than 1.5 times the radius of the rebar beam 8, so that the lifting platform 141 lifts only one rebar beam 8 at a time. When the sliding plate 14 is in the lifting position, the bearing surface 1411 is parallel to the rolling surface 1321 and is located above the rolling surface 1321. When the sliding plate 14 moves from the lifting position to the initial position, that is, when the sliding plate 14 moves downward, the steel beam 8 on the bearing surface 1411 falls onto the stop surface 1323 and rolls onto the rolling surface 1321 until it comes into contact with the rolling surface 1321, thereby completing the lifting of the steel beam 8.

[0073] Preferably, this embodiment has multiple rebar placement platforms 131, evenly distributed on the side edges of the seat plate 13. A rebar storage groove 133 is located below the side edges of the seat plate 13, capable of storing multiple rebar beams 8. Multiple lifting platforms 141 are provided on the sliding plate 14, each corresponding to a rebar placement platform 131 and a rebar storage groove 133. As the sliding plate 14 moves repeatedly between its initial and lifting positions, it can lift the rebar beams 8 in the rebar storage grooves 133 one by one to the upper rebar placement platforms 131. The rebar beams 8 in each rebar placement platform 131 are lifted progressively, and the rebar beam 8 in the uppermost rebar placement platform 131 is lifted to the top pushing platform 132. By providing multiple rebar placement platforms 131, the distance the sliding plate 14 moves repeatedly is reduced, and the reliability of lifting the rebar beams 8 is improved, reducing the probability of the rebar beams 8 falling during lifting.

[0074] The steel bar storage groove 133 is V-shaped, and the steel bar storage groove 133 comprises a first storage surface 1331, a bottom surface 1332 and a second storage surface connected with each other. When the sliding plate 14 is in the initial position, the bearing surface 1411 of the lowermost jacking table 141 is parallel to the bottom surface 1332 and is below the bottom surface 1332, and the limiting surface 1412 is parallel to the first storage surface 1331 and is in front of the first storage surface 1331. Preferably, the length of the bottom surface 1332 is equal to the diameter of the steel bar beam 8, so that only one steel bar beam 8 can be accommodated on the bottom surface 1332. The distance between the limiting surface 1412 and the first storage surface 1331 is greater than the radius of the steel bar beam 8 and less than 1.5 times the radius of the steel bar beam 8, so that the jacking table 141 can only lift one steel bar beam 8 at a time. It is worth noting that when the sliding plate 14 is in the initial position, the limiting surface 1412 of the jacking table 141 adjacent to the lowermost jacking table 141 is parallel to the first storage surface 1331 and is behind the first storage surface 1331, so as to avoid affecting the lifting of the steel bar beam 8.

[0075] When the sliding plate 14 is in the lifting position, the bearing surface 1411 of the lowermost jacking table 141 is parallel to the placement surface 1311 of the lowermost steel bar placement table 131 and is above the placement surface 1311. When the sliding plate 14 moves from the lifting position to the initial position, i.e. the sliding plate 14 moves downward, the steel bar beam 8 on the bearing surface 1411 falls onto the placement surface 1311 and rolls towards the stop surface 1312 until it abuts against the stop surface 1312, thereby completing the lifting of the steel bar beam 8.

[0076] It is worth noting that when the sliding plate 14 moves downward, since the limiting surface 1412 of the lowermost jacking table 141 is parallel to the first storage surface 1331 and is in front of the first storage surface 1331, only when the sliding plate 14 returns to the initial position can the steel bar beam 8 in the steel bar storage groove 133 roll onto the bottom plate 12. Similarly, since the stop surface 1312 of each steel bar placement table 131 is parallel to the limiting surface 1412 of the corresponding jacking table 141 of the same level and the limiting surface 1412 is in front of the stop surface 1312, only when the sliding plate 14 returns to the initial position can the steel bar beam 8 on the placement surface 1311 of the steel bar placement table 131 roll to the position abutting against the stop surface 1312.

[0077] All the sliding plates 14 of the embodiment are connected with the driving assembly 17, the driving assembly 17 can drive the sliding plates 14 to move up and down repeatedly, the driving assembly 17 comprises a lifting cylinder 171, the lifting cylinder 171 is fixed on the bottom plate 12 or the seat plate 13, the lifting cylinder 171 is connected with a lifting rod 172, the lifting rod 172 is fixedly connected with each sliding plate 14, through the extension and contraction of the lifting cylinder 171, the sliding plates 14 can realize repeated movement between the initial position and the lifting position. Preferably, the sliding plate 14 is provided with a stroke limiting groove 142, the seat plate 13 is provided with a stroke limiting column 134, the stroke limiting column 134 is inserted into the stroke limiting groove 142. When the sliding plate 14 is in the initial position, the stroke limiting column 134 is located at the lower position of the stroke limiting groove 142, when the sliding plate 14 is in the lifting position, the stroke limiting column 134 is located at the upper position of the stroke limiting groove 142, through the setting of the stroke limiting groove 142, the position accuracy of the repeated movement of the sliding plate 14 can be improved, so as to improve the accuracy and reliability of the holding of the steel reinforcement beam 8. It is worth noting that, in order to reduce the resistance of the stroke limiting column 134 when moving in the stroke limiting groove 142, the outer side of the stroke limiting column 134 is sleeved with a bearing.

[0078] The upper side of the seat plate 13 is provided with a pushing frame 18, the pushing frame 18 is provided with a pushing assembly 181, the pushing assembly 181 is connected with the pushing block assembly 161, the pushing assembly 181 can drive the pushing block assembly 161 to move reciprocatingly, so as to push the steel reinforcement beam 8 in the pushing table 132 to the welding position. The pushing assembly 181 of the embodiment comprises a pushing cylinder, the pushing cylinder is connected with the pushing block assembly 161, the pushing cylinder can drive the pushing block assembly 161 to move reciprocatingly, the pushing cylinder can be selected as a rodless cylinder.

[0079] As shown in Figure 15 , the pushing block assembly 161 comprises a pushing block support 1611 and a pushing plate 1612, the pushing block support 1611 is connected with the pushing cylinder, the end of the pushing block support 1611 away from the pushing cylinder extends to the direction of the pushing table 132, the pushing plate 1612 is fixedly arranged at the end of the pushing block support 1611 away from the pushing cylinder and perpendicular to the moving direction of the pushing block support 1611, the area of the pushing plate 1612 is greater than the cross-sectional area of the steel reinforcement beam 8, so as to improve the reliability of pushing the steel reinforcement beam 8.

[0080] As shown in Figure 19As shown, the reinforcing steel storage rack 1 of the embodiment further comprises side baffles 19, which are two and symmetrically arranged on both sides of the seat plate 13 close to the edges of the bottom plate 12. The side baffles 19 can prevent the reinforcing steel beam 8 from falling off the seat plate 13 or the sliding plate 14. Preferably, the part corresponding to the reinforcing steel storage groove 133 of the side baffle 19 is a trapezoidal shape with a narrow bottom and a wide top, so as to limit the reinforcing steel in the reinforcing steel storage groove 133 and prevent the reinforcing steel beam 8 in the reinforcing steel storage groove 133 from falling out when being lifted and turned over. The position corresponding to the reinforcing steel placing table 131 of the side baffle 19 is the same as the shape of the reinforcing steel placing table 131, and the side edge surface of the side baffle 19 is arranged in front of the side edge surface of the seat plate 13, thereby reducing the area and weight of the side baffle 19 while playing a limiting role.

[0081] The seat plate 13 of the embodiment is three, which are evenly spaced on the bottom plate 12. Correspondingly, the sliding plate 14 is also three, which are respectively and slidingly arranged on the side of the seat plate 13. The driving assembly 17 is arranged on the seat plate 13 in the middle position. Preferably, in order to reduce the weight of the whole device, the seat plate 13 is provided with a hollow hole.

[0082] In order to cooperate with the two groups of beam supporting assembly 27 on the welding platform 2, the reinforcing steel storage rack 1 of the embodiment is two, and the two reinforcing steel storage racks 1 are respectively connected with the fixed table 111 and the movable table 112. The reinforcing steel storage rack 1 arranged on the movable table 112 can move relative to the movable table 112, so that the two reinforcing steel storage racks 1 can be respectively aligned with the two beam supporting assemblies 27.

[0083] The truss group automatic welding equipment has the advantages of ingenious structure, simultaneous grabbing of multiple trusses on the turnover frame by the grabbing assembly and placement on the welding platform, automatic provision of reinforcing steel beams for welding of the multiple trusses on the welding platform by the reinforcing steel storage rack, accurate positioning of the multiple trusses and the reinforcing steel beams in cooperation with the clamping and positioning assembly, the truss supporting assembly and the beam supporting assembly on the welding platform, stable and reliable welding quality of the trusses and the reinforcing steel beams by the downward pushing and upward pressing welding assembly, storage of the completed truss group on the finished product placing rack by the grabbing assembly, and greatly improved production efficiency of the truss group.

[0084] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A truss assembly automatic welding apparatus characterized by comprising: The welding platform is provided with a turnover rack on one side, and multiple groups of trusses can be stacked on the turnover rack. The other side of the welding platform is provided with a steel bar storage rack for storing steel bar cross beams used for welding the truss groups. A movable first grabbing assembly, a second grabbing assembly, and a welding assembly are arranged above the welding platform. The first grabbing assembly can grab multiple trusses of the same height stacked on the turnover rack at the same time and place them on the welding platform. The steel bar storage rack can insert the steel bar cross beam into the inside of multiple trusses on the welding platform. The welding assembly can weld the steel bar cross beam and the multiple trusses together to form a truss group. The second grabbing assembly can grab the completed truss group and place it in the storage area for storage.

2. The truss set automatic welding apparatus according to claim 1, wherein The turnover rack includes a base, multiple vertical columns are symmetrically arranged at the lengthwise ends of the base, and a placement space is formed between adjacent two vertical columns. The bottom of the placement space is provided with a support frame matched with the shape of the truss. The support frame can support the truss. Multiple truss groups can be stacked in the placement space, so that multiple trusses can be uniformly distributed on the same horizontal plane for the first grabbing assembly to grab.

3. The truss set automatic welding apparatus according to claim 1, wherein A clamping positioning assembly is arranged above the welding platform. The clamping positioning assembly is arranged symmetrically above the welding frame to clamp and fix multiple truss groups on the welding frame.

4. The truss set automatic welding apparatus according to claim 1, wherein A cross beam supporting assembly is arranged above the welding platform. The cross beam supporting assembly includes multiple rollers. V-shaped grooves are arranged on the surfaces of the rollers. The V-shaped grooves on the surfaces of the multiple rollers are on the same straight line. The steel bar storage rack can push the steel bar cross beam into the V-shaped grooves on the surfaces of the rollers. The multiple rollers jointly support the steel bar cross beam.

5. The truss set automatic welding apparatus according to claim 1, wherein The first grabbing assembly, the second grabbing assembly, and the welding assembly are movably arranged on a main frame. The main frame includes a main frame. The main frame is arranged above the welding platform and the steel bar storage rack. Four main legs of the main frame extend downward. The main legs are fixedly connected to the ground, so that the main frame covers the welding platform, the turnover rack, and the steel bar storage rack.

6. The truss set automatic welding apparatus according to claim 5, wherein A first moving frame and a second moving frame are arranged in the main frame. The first moving frame and the second moving frame can move left and right in the main frame. The first grabbing assembly and the welding assembly are arranged on the first moving frame. The first grabbing assembly and the welding assembly can move forward and backward on the first moving frame. The second grabbing assembly is arranged on the second moving frame. The second grabbing assembly can move forward and backward on the second moving frame.

7. The truss set automatic welding apparatus according to claim 5, wherein The welding assembly includes an upper welding assembly and a lower welding assembly. The upper welding assembly is arranged on the main frame and can move up and down relative to the main frame. The lower welding assembly is arranged on the welding platform and can move up and down relative to the welding platform. The upper welding assembly and the lower welding assembly can simultaneously abut the truss and the steel bar cross beam and complete welding.

8. The truss set automatic welding apparatus according to claim 6, wherein The first grabbing assembly includes a jaw seat. Multiple jaw assemblies are uniformly arranged on the front and rear sides of the jaw seat. A jaw slide frame is connected to a jaw slide table. The jaw slide table is slidingly arranged on the first moving frame. The jaw slide frame can move up and down relative to the jaw slide table to drive the jaw seat and the jaw assemblies to move up and down.

9. The truss set automatic welding apparatus according to claim 8, wherein The clamping jaw assembly comprises two clamping jaws arranged symmetrically left and right, two starting plates hinged to the two clamping jaws respectively, and a clamping jaw cylinder connected to the two starting plates.

10. The truss set automatic welding apparatus according to claim 1, wherein The steel bar storage rack comprises a bottom plate, a plurality of seat plates vertically and obliquely arranged and fixed on the bottom plate, the plurality of seat plates being arranged in parallel, a steel bar placing table arranged on a side edge of the seat plate, and a steel bar cross beam placed in the steel bar placing table; a pushing table is arranged on the top of the seat plate, a sliding plate is arranged in sliding connection on the side of the seat plate, a jacking table is arranged on a side edge of the sliding plate, the jacking table can lift the steel bar cross beam in the steel bar placing table into the pushing table when the sliding plate slides from bottom to top, a pushing block assembly is arranged above the pushing table, and the pushing block assembly can push the steel bar cross beam in the pushing table out onto a welding platform.

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