CN213969599U - Automatic welding and feeding device for rib parts of concrete prefabricated laminated slab truss - Google Patents
Automatic welding and feeding device for rib parts of concrete prefabricated laminated slab truss Download PDFInfo
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- CN213969599U CN213969599U CN202022674814.7U CN202022674814U CN213969599U CN 213969599 U CN213969599 U CN 213969599U CN 202022674814 U CN202022674814 U CN 202022674814U CN 213969599 U CN213969599 U CN 213969599U
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Abstract
The utility model discloses a precast concrete superimposed sheet truss muscle portion article automatic weld feed arrangement, including the frame, still include location portion, weld part, second high adjusting device, automatic feed arrangement and fixed clamping device. The positioning part is used for positioning the upper chord ribs, the lower chord ribs and the web ribs, the welding part is used for welding the upper chord ribs, the lower chord ribs and the web ribs into truss ribs, and the second height adjusting device is used for adjusting the relative distance of the rear welding unit in the vertical direction; the automatic feeding device enables the movable clamping device to clamp the upper and lower chord steel bars and move intermittently in the welding direction for welding the welding part, and the fixed clamping device is arranged at the tail end of the movable clamping device and operates alternately with the movable clamping device. The utility model discloses degree of automation is high, and the welding is effectual, and the wide application is in the prefabricated superimposed sheet of building engineering concrete, double skin wallboard, prestressing force plate class component and steel bar truss muscle article automatic weld process for the high-speed railway sleeper.
Description
Technical Field
The utility model relates to a building industrialization assembled building engineering technical field, specific saying so relates to a precast concrete superimposed sheet truss muscle portion article automatic weld feeding device.
Background
In the concrete floor slab production of the building engineering, a steel bar truss rib part is often required. The reinforcing bar truss rib part is made of coiled reinforcing bars as structural materials and is straightened, bent, welded, sized and sheared into fixed lengths. The cross section of the steel bar truss part is triangular, and the whole steel bar truss part comprises an upper chord rib positioned at an upper vertex angle, two lower chord ribs positioned at two base angles and two web ribs with two side waists bent in a wave shape. The wave-shaped wave crests and wave troughs of the web bars on the two sides are respectively in contact welding with the upper chord bars and the lower chord bars, so that a section of the whole steel bar truss part is formed.
The steel bar truss part feeding device is mainly used for realizing the continuity and automation of production, improving the production efficiency, ensuring the quality of parts and reducing the cost. The device mainly comprises a clamping device and a driving clamping device, and the device moves back and forth along a production track to realize stepping. The clamping device on the existing steel bar truss production line generally clamps the truss upper chord tendon through the action of the air cylinder and the rack, and the truss lower chord tendon is clamped on the fixed pressure head through the direct connection of the air cylinder and the pressure head. This approach is prone to wear, the cylinder is also prone to damage, maintenance difficulties and poor stability. When the concrete floor slab is manufactured by traditional building engineering construction, a single steel bar product is usually processed by utilizing a single welding machine or a single man-made machine, then the steel bar product is bound by a manual formwork to be molded, and finally the concrete is poured in a mold for placing the steel bar truss part of the composite slab so as to form a prefabricated composite slab component. The current situation is the disadvantages of low efficiency, difficult quality guarantee, high cost and the like.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the to-be-solved technical problem of the utility model lies in providing a precast concrete superimposed sheet truss muscle part automatic weld feed arrangement, the purpose of designing this automatic weld feed arrangement is that the full automatization of realizing the production line, digitization, factory production have established solid basis. The automatic pre-processing, automatic welding forming and automatic feeding stacking of the steel bar truss rib parts for the constructional engineering concrete prefabricated composite slab, the double-skin wall plate, the prestressed plate type component and the high-speed rail sleeper are realized, the high precision is ensured, the component quality, the production efficiency and the raw material utilization rate are greatly improved, and the national building industrialization development requirement is met.
In order to solve the technical problem, the utility model discloses a following scheme realizes: the utility model discloses a precast concrete superimposed sheet truss muscle portion article automatic weld feed arrangement, including the frame, still include:
the positioning part is arranged at the feeding end of the frame and is provided with a guide positioning frame for guiding the web reinforcements and the upper and lower chord reinforcements to enter, two groups of web reinforcement positioning mechanisms for positioning the front and rear ends of the entered web reinforcements and a first height adjusting device for adjusting the vertical distance between the upper and lower chord reinforcements;
the welding part is provided with a front welding unit and a rear welding unit, is arranged on the rack and is arranged at the adjacent side of the web rib positioning mechanism, and is used for welding the web ribs positioned by the web rib positioning mechanism and the upper and lower chord steel bars into truss ribs;
the second height adjusting device is fixedly arranged at the lower part of the rack and is provided with a lifting structure which is in driving connection with the rear welding unit so as to adjust the relative distance of the rear welding unit in the vertical direction;
the automatic feeding device is arranged at the rear part of the rack and comprises a linear guide rail provided with a movable clamping device and a crank and rocker mechanism driven by a motor, wherein the output end of the crank and rocker mechanism is connected with the movable clamping device and drives the movable clamping device to reciprocate along the linear guide rail, so that the movable clamping device clamps the upper and lower chord steel bars to move intermittently in the welding direction so as to weld the welding part;
and the fixed clamping device is arranged at the tail end of the movable clamping device and alternately operates with the movable clamping device.
Further, the web positioning mechanism includes:
the jacking air cylinders are fixed on two sides of the rack;
the lever structure part is provided with a positioning pressing plate which is arranged on the fulcrum and overturns with the fulcrum, the jacking cylinder is in driving connection with one end of the positioning pressing plate, and the jacking cylinder drives the positioning pressing plate to overturn so as to press the web folding leg tightly.
Further, the guiding and positioning frame is limited by the web bars and the upper and lower chord steel bars, the web bars are two, the upper and lower chord steel bars comprise an upper chord steel bar and two lower chord steel bars, and the guiding and positioning frame structure meets the following requirements: the two web bars are limited in a splayed shape, the upper chord bar is positioned between the two web bars and limited at the upper part, and the two lower chord bars are symmetrically limited at the lower parts of the outer sides of the two web bars.
Furthermore, the first height adjusting device comprises a rotating screw and an adjusting nut screwed on the rotating screw, the adjusting nut is fixed with an upper chord rib support supporting the upper chord rib, the rotating screw drives the adjusting nut to do lifting motion after rotating through a hand wheel connected with the screw by motor driving or manual rotation, a pressing wheel fixed on the frame is arranged above the upper chord rib support, the upper chord rib support is matched with the pressing wheel to clamp the upper chord rib, and the upper chord rib support is fixed on the guide positioning frame.
Furthermore, the front welding unit comprises an upper welding cylinder, a lower welding cylinder and a welding electrode holder, wherein the upper welding cylinder, the lower welding cylinder and the welding electrode holder are fixed on two sides of the rack, the upper welding cylinder drives a welding head point on the upper welding cylinder to the left side of a first welding part where the upper chord rib and the two web ribs are tightly abutted, the lower welding cylinder drives a welding head point on the lower welding cylinder to the right side of the first welding part where the upper chord rib and the two web ribs are tightly abutted, the welding electrode holder is fixed on the welding device through a coupling, the lower end of the welding electrode holder is located right above the upper chord rib, and the upper chord rib can be abutted and connected with the welding electrode holder after rising.
Further, the welding electrode holder is provided with a water cooling device.
Furthermore, the second height adjusting device is a truss rib height adjusting device, and a driving source of the second height adjusting device is a screw rod lifting machine driven by a motor or manually adjusted by a hand wheel.
Further, the movable clamping device comprises:
the platform assembly comprises a stepping mounting platform and two platform supports fixed on two sides of the lower table surface of the stepping mounting platform, the two platform supports are respectively connected on two linear guide rails in a sliding manner, and a fixed chuck is fixed on the upper table surface of the stepping mounting platform;
the upper chord rib clamping unit comprises an Jiong-shaped frame which is fixedly arranged on the platform and consists of two vertical plates and a cross beam, and the cross beam is provided with an air claw which is used for clamping the upper chord rib and has adjustable height;
the lower chord rib clamping unit comprises two groups of lower chord rib clamping cylinders symmetrically arranged on two sides of the upper table surface of the platform and rotating arm assemblies connected with the lower chord rib clamping cylinders in a piston mode, and clamping ends on the two groups of rotating arm assemblies face to each other.
Further, the boom assembly includes:
the rotating arm is arranged on the platform through a supporting rotating shaft, and one end of the rotating arm is connected with the piston;
the movable chuck is arranged at the other end of the rotating arm;
and the chuck fixing table is arranged on the movable chuck.
Further, the crank and rocker mechanism comprises:
the motor speed reducer is arranged below the rack;
one end of the crank is fixedly connected with an output shaft of the motor reducer and is driven by the output shaft to synchronously rotate circumferentially with the output shaft;
and one end of the connecting rod is hinged with the crank, and the other end of the connecting rod is hinged with the lower end of the movable clamping device.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the welding device of the automatic production line of the steel bar truss rib part products for the constructional engineering concrete prefabricated composite slab, the double-skin wallboard, the prestressed plate type component and the high-speed rail sleeper realizes the automatic welding forming of the steel bar truss rib part products by the front-end web rib positioning and straightening forming mechanism, the front welding unit and the rear welding unit which are combined and welded. The formed steel bar truss rib part can be continuously fed into a subsequent production unit by a pushing mechanism. The utility model discloses simple structure, degree of automation is high, and the welding is effectual, and the wide application is in the prefabricated superimposed sheet of building engineering concrete, double skin wallboard, prestressing force plate class component and high-speed railway sleeper steel bar truss muscle article automatic weld process.
2. The automatic feeding device for the steel bar truss rib parts for the constructional engineering concrete prefabricated composite slab, the double-skin wallboard, the prestressed plate type component and the high-speed rail sleeper realizes the reciprocating motion of the linear guide rail through the movable clamping device arranged on the linear guide rail and the connection of the crank rocker mechanism driven by a motor and the movable clamping device, and successfully finishes the automatic feeding and welding of the steel bar truss rib parts. The utility model discloses in adopt crank rocker technical system's mode drive activity clamping device to come and go to slide, activity clamping device has replaced traditional rack and pinion transmission mode, can grasp the steel bar truss muscle in a flexible way and slide on linear guide and go to returning the removal, realized that steel bar truss's ration progressively feeds, accurate target in place. The utility model has the advantages of simple and compact structure, the cost of manufacture is lower, feeds the accuracy, extensively as the automatic feeding device of the prefabricated superimposed sheet of building engineering concrete, double skin wallboard, prestressing force board class component and steel bar truss muscle article for the high-speed railway sleeper, especially the automatic feeding device of the prefabricated superimposed sheet steel bar truss muscle of concrete.
3. The upper chord rib, the lower chord rib and the web rib of the reinforcement part of the steel bar truss are finished by double-layer automatic resistance welding, welding current, welding pressure and welding time can be infinitely adjusted according to the performance of raw materials, the welding pressure and the design strength requirement of a welding point, and digital management and control and information cooperation are realized.
4. Step-by-step accurate millimeter level step-by-step realization of steel bar truss muscle portion article, the precision can be controlled in the millimeter, and steel bar truss muscle portion article warpage also controls within the regulation, ensures straightness accuracy and roughness.
Drawings
Figure 1 is that the utility model discloses automatic welding advances device
Fig. 2 is a schematic structural view of the welding portion of the present invention.
Fig. 3 is a schematic structural view of the automatic feeding device of the present invention.
Fig. 4 is a structural plan view of the movable clamping device of the present invention.
Fig. 5 is a structural diagram of a truss rib formed after welding upper and lower chord steel bars and web bars.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the protection scope of the present invention. It is obvious that the described embodiments of the invention are only some of the embodiments of the invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Embodiment 1, the utility model discloses a specific structure as follows:
referring to fig. 1-5, the utility model discloses a precast concrete superimposed sheet truss muscle part automatic weld feeding device, including frame 1, still include:
the positioning part is arranged at the feeding end of the frame 1 and is provided with a guide positioning frame 5 for guiding the web reinforcements and the upper and lower chord reinforcements to enter, two groups of web reinforcement positioning mechanisms 4 for positioning the front and rear ends of the entered web reinforcements and a first height adjusting device for adjusting the vertical distance between the upper and lower chord reinforcements;
the welding part is provided with a front welding unit 7 and a rear welding unit 8, is arranged on the rack 1 and is arranged at the side adjacent to the web rib positioning mechanism 4, and is used for welding the web ribs positioned by the web rib positioning mechanism 4 and the upper and lower chord steel bars into truss ribs;
the second height adjusting device 2 is fixedly arranged at the lower part of the rack 1 and is provided with a lifting structure which is in driving connection with the rear welding unit 8 so as to adjust the relative distance of the rear welding unit 8 in the vertical direction;
the automatic feeding device is arranged at the rear part of the rack 1 and comprises a linear guide rail 18 provided with a movable clamping device 16 and a crank and rocker mechanism driven by a motor, wherein the output end of the crank and rocker mechanism is connected with the movable clamping device 16 and drives the movable clamping device 16 to reciprocate along the linear guide rail 18, so that the movable clamping device 16 clamps the whole upper and lower chord steel bars to move discontinuously in the welding direction to weld the welding part;
and a fixed clamping device 19 provided at the end of the movable clamping device 16 and alternately operating with the movable clamping device 16.
A preferred technical solution of this embodiment: the web positioning mechanism 4 includes:
the jacking air cylinders 3 are fixed on two sides of the rack 1;
the lever structure part is provided with a positioning pressing plate 22 which is arranged on a fulcrum and overturns with the fulcrum, the jacking cylinder 3 is in driving connection with one end of the positioning pressing plate 22, and the jacking cylinder 3 drives the positioning pressing plate 22 to overturn so as to press the web rib folding legs.
A preferred technical solution of this embodiment: the guide positioning frame 5 is right the web rib with the upper chord reinforcing steel bar and the lower chord reinforcing steel bar are limited, the web rib is provided with two web ribs, the upper chord reinforcing steel bar and the lower chord reinforcing steel bar comprise an upper chord reinforcing steel bar 101 and two lower chord reinforcing steel bars 103, and the guide positioning frame 5 is structurally satisfactory: the two web ribs 102 are limited in a shape like a Chinese character 'ba', the upper chord rib 101 is positioned between the two web ribs 102 and limited at the upper part, and the two lower chord ribs 103 are symmetrically limited at the lower part of the outer sides of the two web ribs 102.
A preferred technical solution of this embodiment: the first height adjusting device comprises a rotating screw and an adjusting nut screwed on the rotating screw, the adjusting nut is fixed with an upper chord rib support 6 supporting the upper chord rib, the rotating screw drives the adjusting nut to do lifting motion after being rotated through a hand wheel connected with the screw through motor driving or manual rotation, a pressing wheel fixed on the frame 1 is arranged above the upper chord rib support 6, the upper chord rib support 6 is matched with the pressing wheel to clamp the upper chord rib, and the upper chord rib support 6 is fixed on the guide positioning frame 5.
A preferred technical solution of this embodiment: the front welding unit 7 comprises an upper welding cylinder 23, a lower welding cylinder 24 and a welding electrode holder, wherein the upper welding cylinder 23, the lower welding cylinder 24 and the welding electrode holder are fixed on two sides of the rack, a welding head point on the upper welding cylinder 23 is driven to the left side of a first welding part where the upper chord rib and the two web ribs are tightly abutted, the lower welding cylinder 24 is driven to drive a welding head point on the lower welding cylinder to the right side of the first welding part where the upper chord rib and the two web ribs are tightly abutted, the welding electrode holder is fixed on the welding device through a coupling, the lower end of the welding electrode holder is located right above the upper chord rib, and the upper chord rib can be abutted and connected with the welding electrode holder after rising.
A preferred technical solution of this embodiment: the welding electrode holder is provided with a water cooling device.
A preferred technical solution of this embodiment: the second height adjusting device 2 is a truss rib height adjusting device, and a driving source of the second height adjusting device is a screw rod hoister driven by a motor or through a manual adjusting hand wheel.
A preferred technical solution of this embodiment: the movable clamp device 16 includes:
the platform assembly comprises a stepping mounting platform 12 and two platform supports 25 fixed on two sides of the lower platform surface of the stepping mounting platform 12, the two platform supports 25 are respectively connected on the two linear guide rails 18 in a sliding manner, and a fixed chuck 26 is fixed on the upper platform surface of the stepping mounting platform 12;
the upper chord tendon clamping unit 15 comprises an Jiong-shaped frame which is fixedly arranged on the platform and consists of two vertical plates 13 and a cross beam, and the cross beam is provided with a pneumatic claw 14 which is used for clamping the upper chord tendon and has adjustable height;
and the lower chord rib clamping unit 17 comprises two groups of lower chord rib clamping cylinders 11 symmetrically arranged on two sides of the upper table surface of the platform and rotating arm assemblies connected with the lower chord rib clamping cylinders 11 in a piston manner, and clamping ends on the two groups of rotating arm assemblies are opposite.
A preferred technical solution of this embodiment: the boom assembly includes:
a rotating arm 27 mounted on the platform through a support rotating shaft 28, one end of which is connected with a piston;
a movable chuck 29 mounted on the other end of the rotating arm 27;
and a chuck fixing table 30 mounted on the movable chuck 29.
A preferred technical solution of this embodiment: the crank and rocker mechanism comprises:
the motor reducer 20 is arranged below the rack 1;
a crank 21, one end of which is fixedly connected with the output shaft of the motor reducer 20 and is driven by the output shaft to synchronously rotate circumferentially with the output shaft;
the connecting rod 10 is hinged to the crank 21 at one end and hinged to the lower end of the movable clamping device 16 at the other end.
Example 2:
the following is that the utility model discloses automatic weld feed arrangement's theory of operation:
the automatic welding device for the truss ribs of the concrete prefabricated laminated slab comprises an upper chord steel bar, a lower chord steel bar, two side web ribs and a machine frame 1, wherein the upper chord steel bar, the lower chord steel bar and the two side web ribs enter from the front section of the machine frame 1, and the front end of the machine frame 1 is provided with two side web rib positioning mechanisms 4, a front welding unit 7 and a rear welding unit 8. The two-side web rib positioning mechanism 4 comprises a front web rib positioning mechanism, a rear web rib positioning mechanism and a positioning pressing plate 22, and the positioning pressing plate 22 and the two-side web rib pressing blocks form a lever structure. When the piston rods of the jacking air cylinders 3 on the two sides are pushed upwards, the positioning pressing plates 22 can turn over the lower pressing web rib pressing blocks to clamp and press the web ribs on the two sides, so that the web ribs are well fixed with the upper chord ribs and the lower chord ribs, and the whole steel bar truss web rib is firmly positioned. Preceding welding unit 7 and back welding unit 8 still are provided with water cooling plant including setting up welding cylinder 7 and welding electrode holder on 1 both sides of frame are alternately put two, in the welding electrode holder, and the motor cabinet temperature is in normal condition in the auxiliary cooling at any time. The truss rib height adjusting device is driven by a motor or a screw rod lifter of a manual adjusting hand wheel, and the vertical direction relative distance between the truss rib height adjusting device and the rear welding unit 8 is adjusted to adapt to the height specification change of truss ribs. The upper chord rib support 6 and the pressing wheel 9 assist in positioning the upper chord rib, and therefore the welding position can not be dislocated in the welding process.
The automatic feeding device for the truss ribs of the precast concrete superposed slab comprises a linear guide rail 18 provided with a movable clamping device 16 and a crank rocker mechanism driven by a motor. The output of the crank and rocker mechanism is coupled to the movable clamp 16 and drives it to reciprocate along the linear guide 18. The movable clamping device 16 comprises platform supports 25 which are connected on the linear guide rail 18 in a sliding mode, the two platform supports 25 support the stepping mounting platform 12, lower chord rib clamping cylinders 11 are mounted on two sides of the upper table surface of the stepping mounting platform 12, and the compression of the lower chord ribs is controlled through the lower chord rib clamping cylinders 11 and rotating arms 27. The vertical plate 13 is provided with a pneumatic claw 14 which is used for clamping an external upper chord rib and has adjustable height.
When the device works, one upper chord rib, two lower chord ribs and two web ribs enter, the position of each steel bar is limited by the guide positioning frame 5, the upper chord rib is positioned at the upper part, the two lower chord ribs are positioned below, and the two wave-shaped web ribs are positioned at two sides; after positioning, the welding cylinders in the front welding unit 7 and the rear welding unit 8 are pushed forwards to form a welding head close to the welding point where the upper chord rib is close to the web rib, and the welding head is electrified for electric welding.
And a fixed clamping device 19 which has the same structure as that above the stepping installation platform 12 of the movable clamping device 16.
Before the operation, the grabbing height of the air claw 14 at the upper parts of the movable clamping device 16 and the fixed clamping device 19 is set to be matched with the position of the upper chord of the steel bar truss to be processed through a height adjusting mechanism, and then the movable clamping device 16 and the fixed clamping device 19 are controlled by a computer to alternately act, namely: after the steel bar truss is fed, the fixed clamping device 19 is in a relaxed state, the piston rod of the lower chord tendon clamping cylinder 11 of the movable clamping device 16 extends out, the rotating arm 27 is driven to rotate along the supporting rotating shaft 28, the movable chuck 29 at the outer end of the rotating arm 27 is pressed to the lower chord tendon, the clamping cylinders at two sides synchronously act, the movable chuck 29 clamps the lower chord tendon at the fixed chuck 26, and meanwhile, the upper chord tendon is clamped by the air claw 14; at this time, an output shaft of the motor reducer 20 rotates, the stepping mounting platform 12 is driven to drive the whole movable clamping device 16 to slide to a position close to the fixed clamping device 19 through the crank 21 and the connecting rod 10, then the movable clamping device 16 is integrally released, the air cylinder and the air claw of the fixed clamping device 19 act to clamp the steel bar truss to ensure that the steel bar truss cannot shift, and the crank-connecting rod mechanism continues to act to drive the movable clamping device 16 to reset to enter the next stepping cycle. The movable jaw 16 and the fixed jaw 19 are alternately actuated during the entire feeding process.
In the specific implementation mode of the crank rocker mechanism, a motor speed reducer 20 is mounted below the frame 1, the output end of the motor speed reducer 20 is connected with a crank 21, the crank 21 is hinged to one end of the connecting rod 10, and the other end of the connecting rod 10 is hinged to the lower end of the mounting platform 12, so that when the motor speed reducer 20 outputs a fixed torque, the hinged point of the crank 21 and the connecting rod 10 eccentrically rotates, and the mounting platform 12 is driven by the connecting rod 10 to slide back and forth on the linear guide rail 18.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (10)
1. Precast concrete superimposed sheet truss muscle portion article automatic weld feed arrangement, including frame (1), its characterized in that still includes:
the positioning part is arranged at the feeding end of the frame (1) and is provided with a guide positioning frame (5) for guiding the web bars and the upper and lower chord bars to enter, two sets of web bar positioning mechanisms (4) for positioning the front and rear ends of the entered web bars and a first height adjusting device for adjusting the vertical distance between the upper and lower chord bars;
the welding part is provided with a front welding unit (7) and a rear welding unit (8), is arranged on the rack (1) and is arranged at the adjacent side of the web rib positioning mechanism (4), and is used for welding the web ribs positioned by the web rib positioning mechanism (4) and the upper and lower chord ribs into truss ribs;
the second height adjusting device (2) is fixedly arranged at the lower part of the rack (1) and is provided with a lifting structure which is in driving connection with the rear welding unit (8) so as to adjust the relative distance of the rear welding unit (8) in the vertical direction;
the automatic feeding device is arranged at the rear part of the rack (1) and comprises a linear guide rail (18) provided with a movable clamping device (16) and a crank and rocker mechanism driven by a motor, wherein the output end of the crank and rocker mechanism is connected with the movable clamping device (16) and drives the movable clamping device (16) to reciprocate along the linear guide rail (18), so that the movable clamping device (16) clamps the whole upper and lower chord ribs to move intermittently in the welding direction so as to weld the welding part;
and the fixed clamping device (19) is arranged at the tail end of the movable clamping device (16) and alternately operates with the movable clamping device (16).
2. The automatic welding and feeding device for the reinforcement part of the precast concrete superimposed slab truss according to claim 1, wherein the web reinforcement positioning mechanism (4) comprises:
the jacking air cylinders (3) are fixed on two sides of the rack (1);
the lever structure part is provided with a positioning pressing plate (22) which is arranged on the fulcrum and overturns with the fulcrum, the jacking cylinder (3) is in driving connection with one end of the positioning pressing plate (22), and the jacking cylinder (3) drives the positioning pressing plate (22) to overturn so as to press the abdominal muscle folding legs tightly.
3. The automatic welding and feeding device for the reinforcement part of the precast concrete superimposed slab truss as claimed in claim 1, wherein the guide positioning frame (5) is used for limiting the web reinforcement and the upper and lower chord reinforcements, the web reinforcement is provided with two web reinforcements, the upper and lower chord reinforcements comprise an upper chord reinforcement and two lower chord reinforcements, and the guide positioning frame (5) is structurally satisfactory: the two web bars are limited in a splayed shape, the upper chord bar is positioned between the two web bars and limited at the upper part, and the two lower chord bars are symmetrically limited at the lower parts of the outer sides of the two web bars.
4. The automatic welding and feeding device for the reinforcement part of the precast concrete superimposed slab truss as claimed in claim 3, wherein the first height adjusting device comprises a rotating screw and an adjusting nut screwed on the rotating screw, the adjusting nut is fixed with an upper chord reinforcement bracket (6) supporting the upper chord reinforcement, the rotating screw is driven by a motor or manually rotates a hand wheel connected with the screw to drive the adjusting nut to do lifting motion after rotating, a pressing wheel fixed on the frame (1) is arranged above the upper chord reinforcement bracket (6), the upper chord reinforcement bracket (6) is matched with the pressing wheel to clamp the upper chord reinforcement, and the upper chord reinforcement bracket (6) is fixed on the guide positioning frame (5).
5. The automatic welding and feeding device for the reinforcement part of the precast concrete composite slab truss according to claim 3, wherein the front welding unit (7) comprises an upper welding cylinder (23), a lower welding cylinder (24) and a welding electrode holder, the upper welding cylinder (23) is fixed on two sides of the frame, the upper welding cylinder (23) drives a welding head point on the upper welding cylinder to the left side of a first welding part where the upper chord reinforcement and the two web reinforcements are tightly abutted, the lower welding cylinder (24) drives a welding head point on the lower welding cylinder to the right side of the first welding part where the upper chord reinforcement and the two web reinforcements are tightly abutted, the welding electrode holder is fixed on a welding device through a coupling, the lower end of the welding electrode holder is located right above the upper chord reinforcement, and the upper chord reinforcement can be abutted against and connected with the welding electrode holder after rising.
6. The automatic welding and feeding device for the reinforcement part of the precast concrete superimposed slab truss as claimed in claim 5, wherein the welding electrode holder is provided with a water cooling device.
7. The automatic welding and feeding device for the truss rib parts of the precast concrete superimposed slab as claimed in claim 1, wherein the second height adjusting device (2) is a truss rib height adjusting device, and the driving source thereof is a screw rod lifter driven by a motor or through a manual adjusting hand wheel.
8. The automatic welding and feeding device for the reinforcement part of the precast concrete superimposed slab truss as claimed in claim 1, wherein said movable clamping device (16) comprises:
the platform assembly comprises a stepping mounting platform (12) and two platform supports (25) fixed on two sides of the lower table surface of the stepping mounting platform (12), the two platform supports (25) are respectively connected onto two linear guide rails (18) in a sliding manner, and a fixed chuck (26) is fixed on the upper table surface of the stepping mounting platform (12);
the upper chord rib clamping unit (15) comprises an Jiong-shaped frame which is fixedly arranged on the platform and consists of two vertical plates (13) and a cross beam, and the cross beam is provided with an air claw (14) which is used for clamping the upper chord rib and has adjustable height;
and the lower chord rib clamping unit (17) comprises two groups of lower chord rib clamping cylinders (11) which are symmetrically arranged on two sides of the upper table surface of the platform and rotating arm assemblies which are connected with the lower chord rib clamping cylinders (11) through pistons, and clamping ends on the two groups of rotating arm assemblies are opposite.
9. The automatic welding and feeding device for the reinforcement part of the precast concrete superimposed slab truss according to claim 8, wherein the rotating arm assembly comprises:
a rotating arm (27) which is arranged on the platform through a supporting rotating shaft (28) and one end of which is connected with a piston;
a movable chuck (29) mounted at the other end of the rotating arm (27);
and the chuck fixing table (30) is arranged on the movable chuck (29).
10. The automatic welding and feeding device for the reinforcement part of the concrete precast composite slab truss according to claim 1, wherein the crank and rocker mechanism comprises:
the motor speed reducer (20) is arranged below the rack (1);
one end of the crank (21) is fixedly connected with an output shaft of the motor reducer (20) and is driven by the output shaft to synchronously rotate circumferentially with the output shaft;
and the connecting rod (10) is hinged to the crank (21) at one end, and is hinged to the lower end of the movable clamping device (16) at the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022674814.7U CN213969599U (en) | 2020-11-18 | 2020-11-18 | Automatic welding and feeding device for rib parts of concrete prefabricated laminated slab truss |
Applications Claiming Priority (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878274A (en) * | 2021-11-16 | 2022-01-04 | 浙江精工钢结构集团有限公司 | Welding equipment for support ribs of steel bar truss |
| CN117548892A (en) * | 2024-01-12 | 2024-02-13 | 中清大装配式建筑(德州)有限公司 | Automatic welding device for stressed steel bars of building carrier plate |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878274A (en) * | 2021-11-16 | 2022-01-04 | 浙江精工钢结构集团有限公司 | Welding equipment for support ribs of steel bar truss |
| CN117548892A (en) * | 2024-01-12 | 2024-02-13 | 中清大装配式建筑(德州)有限公司 | Automatic welding device for stressed steel bars of building carrier plate |
| CN117548892B (en) * | 2024-01-12 | 2024-03-12 | 中清大装配式建筑(德州)有限公司 | Automatic welding device for stressed steel bars of building carrier plate |
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