1512 results about "Stirrup" patented technology

The invention discloses a shear capacity analysis method for a reinforced concrete beam with stirrups based on machine learning, and the method comprises the steps: constructing a training set and a test set based on a shear capacity database of the beam with stirrups; establishing an interpretable prediction model by utilizing machine learning, setting hyper-parameters for the interpretable prediction model, and performing training; obtaining a shear bearing capacity prediction value of the samples in the test set by using the trained prediction model; and quantifying the contribution of each key anti-shearing characteristic to the anti-shearing bearing capacity predicted value, and analyzing and judging the reasonability of the anti-shearing bearing capacity predicted value output by the prediction model according to the anti-shearing theory. According to the method, the problems of high prediction difficulty, high discreteness, lack of reliable physical models, large calculation amount of high-precision numerical simulation and the like in machine learning are solved for the first time; the prediction model can accurately reflect the complex nonlinear relation between the shear bearing capacity and the influence factors, and meanwhile, the model reasonability is verified and improved in combination with a prediction result and priori knowledge, so that the man-machine interaction trust in practical application is improved.

The invention relates to the technical field of reinforcement cage automatic machining, in particular to a rectangular beam column reinforcement cage automatic machining method which comprises the following steps that S1, longitudinal bars and stirrups are blanked and machined; s2, the stirrups are sequentially placed above a clamp system through a material placing robot; s3, conveying the single longitudinal bars to a synchronous conveying device through a single longitudinal bar conveying device; s4, the clamp system is conveyed to a transverse moving mechanism; s5, the pushing trolley, close to the assembling and welding device, of the synchronous conveying device drives the longitudinal bars to be synchronously conveyed to the assembling and welding device, and the longitudinal bars are conveyed back and forth through the pushing trolley close to the assembling and welding device till all the longitudinal bars are conveyed to the assembling and welding device; s6, the stirrups and the longitudinal bars are welded through a welding robot; through the intelligent processing technology, compared with the prior art, the efficiency of assembling and mounting is greatly improved, and compared with a conventional prefabricated part steel bar manufacturing mode, the carbon emission per unit yield of a component is remarkably reduced.

The invention discloses a T-shaped laminated shear wall, a building and a construction method thereof, the T-shaped laminated shear wall comprises a first module and a second module, each of the first module and the second module comprises an edge member and a shell membrane, a horizontal stirrup protrudes out of one side of the edge member of each of the two modules, and a wall body steel bar connecting ring protrudes out of one side of the shell membrane of each of the two modules; the horizontal stirrups between the two modules are connected through the connecting stirrups, and the wall body steel bar connecting rings between the two modules are connected in an anchoring mode. A cavity is formed after the two modules are combined, longitudinal steel bars are arranged in the cavity, and concrete is poured in the cavity. According to the T-shaped superposed shear wall, the problem that a T-shaped edge component in an existing module building cannot be split into two modules is solved. In addition, the thickness of wall body edge components is not increased, steel bars are convenient to place on site, a prefabricated part and a cast-in-place part are effectively connected with stirrups installed in a cast-in-place mode through reserved horizontal stirrups of the prefabricated part to form a complete whole, and compared with cast-in-place components, the stress performance of the T-shaped superimposed shear wall is not affected.

The invention relates to the technical field of box girder reinforcement framework machining, in particular to a bottom web stirrup integrated machining single-machine-head bending device and a forming method of the bottom web stirrup integrated machining single-machine-head bending device. The bending device comprises a straightening mechanism, a feeding and bending mechanism, a transferring mechanism, a welding device and a discharging mechanism. The straightening mechanism comprises a steel bar straightening machine; the feeding and bending mechanism comprises a bending platform, a bending head is arranged in the center of the bending platform, and a steel bar traction device is arranged between the bending head and the straightening mechanism. A reinforcing steel bar cutting device is further arranged between the bending head and the reinforcing steel bar traction device; a regular pushing device is arranged on one side of the bending platform; the transfer mechanism comprises a transfer gripper; the welding device is used for welding the stirrup meshes into an integrated structure; and the discharging mechanism comprises a discharging gripper. According to the bending device, all construction processes for producing the stirrup meshes are smoothly joined, the stirrup mesh bending operation is more efficient, the operation intensity of constructors can be reduced, and the production efficiency of the bottom web stirrup meshes is improved.

The utility model discloses an FRP (fiber reinforced plastic) bar-steel bar mixed reinforced concrete column with high corrosion resistance and shock resistance toughness, which comprises a concrete layer, an FRP bar framework and a steel bar framework, the FRP bar framework is positioned on one side close to the surface of the concrete layer, the steel bar framework is positioned on the inner side of the FRP bar framework, and the steel bar framework is formed by a plurality of steel longitudinal bars and a plurality of steel stirrups. The FRP bar framework is formed by a plurality of FRP longitudinal bars and a plurality of FRP stirrup belts. According to the concrete column, the corrosion-resistant FRP longitudinal bars and the FRP stirrup belts are arranged on the outer side, the steel bars prone to corrosion are arranged on the inner side, linear elasticity and corrosion resistance of FRP materials and the excellent energy dissipation capacity of the steel bars are fully utilized, and the concrete column with the FRP bars and the steel bars in mixed reinforcement and good in corrosion resistance and seismic toughness is formed; and moreover, the used FRP ribs can provide stable secondary rigidity after the steel bars are yielded, so that residual deformation of the column after unloading is reduced, and rapid repair of the concrete column after an earthquake is facilitated.

The invention provides T-beam web stirrup placing equipment, and belongs to the technical field of T-beam framework machining. The equipment comprises a clamping unit, a correcting unit, an X-axis walking mechanism, a Y-axis walking mechanism and a Z-axis walking mechanism, the clamping unit is used for synchronously clamping a plurality of stirrups, the correcting unit is used for adjusting the straightness of the stirrups, the X-axis walking mechanism is provided with a walking rail and a walking frame which are arranged in the extending direction of the X axis, and the Z-axis walking mechanism is provided with a Z-axis walking mechanism. The clamping unit and the correcting unit are both arranged in the walking frame, and the X-axis walking mechanism is used for driving the clamping unit and the correcting unit to reciprocate in the extending direction of the X axis. The Y-axis walking mechanism is slidably arranged at the top of the walking frame and used for driving the clamping unit and the correcting unit to reciprocate in the extending direction of the Y axis. The Z-axis walking mechanism is arranged in the Y-axis walking mechanism in a sliding mode and used for driving the clamping unit and the correcting unit to do reciprocating motion in the extending direction of the Z axis. The stirrup placing device is used for solving the technical problems that an existing stirrup placing mode is large in labor intensity and low in production efficiency.

Disclosed in the present application is a cast-in-place prefabricated building formwork component suitable for columns or beams, comprising a columnar formwork and stirrups fixed to the formwork; the upper and lower ends of the formwork are provided with connection fitting parts that fit adjacent formworks; the formwork is defined by steel plates; the stirrups are jointly formed by the steel plates and rod-shaped members fixedly connected to inner side surfaces of the steel plates. In addition, further disclosed in the present application are a cast-in-place prefabricated building shear wall component and a cast-in-place prefabricated building floor slab component. A stress test result proves that structures such as columns and beams formed by the cast-in-place prefabricated building formwork component in the present application can have a better constraint effect on concrete cast inside, and particularly increase a constraint area, thereby improving the overall shear resistance and bearing capacity of buildings, and having great significance for seismic resistance of the buildings in earthquakes.

The invention discloses an adjustable sliding rail reinforcing steel bar pre-embedding positioner and a construction method thereof, and relates to the technical field of reinforcing steel bar pre-embedding positioning, the positioner comprises a first positioner used for positioning frame column reinforcing steel bars and a second positioner used for positioning foundation horizontal bars, the first positioner comprises four positioning pipes which define a rectangular frame, and the positioning pipes are arranged in the rectangular frame; a plurality of groups of positioning hoops in one-to-one correspondence with frame column steel bars are correspondingly and fixedly arranged on each positioning pipe; the second positioner comprises a first positioning module and a second positioning module, and further comprises an adjusting module; the first positioning module and the second positioning module respectively comprise two groups of positioning columns which are symmetrically arranged in parallel; frame column steel bars are positioned through the frame column steel bar positioning mechanism, stirrups are placed according to the interval and the number required by a construction drawing, and the stirrups and the frame column steel bars are firmly bound through binding wires; and each link is ensured to meet the design requirement and the quality standard.

The invention discloses a stirrup assembly type concrete beam column structure, which relates to the technical field of building structures and comprises a prefabricated lower column, a prefabricated upper column, a left superposed beam and a right superposed beam, the prefabricated lower column, the prefabricated upper column, the left superposed beam and the right superposed beam are distributed in a cross-shaped beam column structure; unique double-spiral stirrup configuration is applied to the column body, so that the torsion resistance and the bearing capacity are enhanced; the longitudinal bars and the stirrups are reasonably arranged on the superposed beam, so that the bending resistance and the shearing resistance are guaranteed. At the joint, the T-shaped channel steel plates, the fixing blocks and the hinged tension connecting rods form an energy dissipation system, and earthquake energy is effectively dissipated. The column body connection adopts the combination of a full-grouting nodular cast iron sleeve and a frame-shaped steel belt, and is matched with a post-pouring laminated layer to realize rigid connection. The limiting mechanism anchors a T-shaped channel steel plate through a double-end pull rod and a self-locking nut, a limiting clamping plate and a torsion spring form anti-pulling self-locking, the anti-seismic property of the joint is enhanced by combining a hinged tension connecting rod, and the structural reliability is improved.

The invention provides a stirrup pull-in type reinforcing mesh device and a manufacturing method thereof. The stirrup pull-in type reinforcing mesh device comprises a lifting platform, a sliding traction device arranged at the downstream of the lifting platform, a welding device arranged at the downstream of the traction device, a longitudinal bar distributing device arranged at the downstream of the welding device, a movable mesh pulling device arranged at the bottom of the longitudinal bar distributing device, and a bending device arranged at the downstream of the mesh pulling device. And a stirrup distributing device is arranged on one side of the lifting platform. The net pulling device, the traction device and the material distributing device move in a reciprocating mode, the position of the welding device is fixed, the whole net piece bending does not occupy key procedures, placing, positioning, welding and moving of longitudinal bars and stirrups can be carried out at the same time, the production efficiency is further improved, assembly line procedures are coherent, the production cost is greatly reduced, and the large popularization value is achieved.

The invention provides a channel steel positioning frame for a foundation short column steel reinforcement framework, and belongs to the technical field of channel steel positioning frames, the channel steel positioning frame comprises a base frame, each side edge of the base frame is provided with a plurality of limiting units evenly distributed along the side edge, and each limiting unit comprises a mounting seat, a positioning head, an elastic structure, a sliding part and an opening part; a unified control assembly is slidably mounted on the base frame. According to the channel steel positioning frame for the foundation short column steel reinforcement framework, vertical ribs can be stably and accurately limited and fixed, the vertical ribs can be conveniently and rapidly taken and placed, meanwhile, the binding position of stirrups cannot be restrained, the binding quality of the steel reinforcement framework can be improved, and the cost is reduced. And the construction work of a concrete structure can be conveniently carried out in a mode of hoisting to a pouring point along with the steel reinforcement framework, and the efficiency and the quality of concrete construction are comprehensively improved.

The invention belongs to the technical field of box girder reinforcement cage machining, and particularly relates to a bottom web stirrup integrated machining multi-machine-head bending device and a forming method of the bottom web stirrup integrated machining multi-machine-head bending device. The bending device comprises a discharging mechanism, a storage mechanism, a bending mechanism, a transferring mechanism, a welding mechanism and a discharging mechanism. The discharging mechanism comprises a straightening cut-off machine. The storage mechanism is used for discharging the straightened reinforcing steel bars into the bending mechanism. The bending mechanism comprises a bending platform and a plurality of bending heads which are arranged in parallel; the plurality of bending heads divide a steel bar into two parts, namely an inner ring bar and an outer ring bar, and the two parts are bent and folded to form a stirrup mesh; the transfer mechanism comprises a transfer gripper which is used for gripping the stirrup mesh and transferring the stirrup mesh into the welding mechanism; the welding mechanism is used for welding the stirrup meshes into an integrated structure; and the discharging mechanism comprises a discharging gripper which is used for gripping the stirrup meshes in the welding mechanism and discharging the stirrup meshes. According to the bending device, all construction processes for producing the stirrup meshes are smoothly joined, the operation intensity is reduced, and the production efficiency of the stirrup meshes is improved.

The invention provides a stirrup temporary storage frame and an adjusting device, and belongs to the technical field of steel reinforcement framework machining devices.The stirrup temporary storage frame comprises a supporting bottom frame, the supporting bottom frame is provided with at least two supporting longitudinal beams which are oppositely arranged in parallel, and a connecting cross beam is arranged between any two adjacent supporting longitudinal beams; u-shaped limiting structures are evenly arranged on the tops of at least two supporting longitudinal beams at intervals in the length extending direction, the U-shaped limiting structures on each supporting longitudinal beam and the U-shaped limiting structures on the adjacent supporting longitudinal beam are oppositely arranged, and each set of opposite U-shaped limiting structures are used for containing one stirrup. A clamping structure for clamping the stirrup is arranged in the U-shaped limiting structure, so that the stirrup is stably placed in the U-shaped limiting structure; the temporary storage, adjustment and transportation efficiency of the stirrups in the machining process of the rectangular steel reinforcement framework can be remarkably improved, the machining precision is improved, the production cost is reduced, and the temporary storage, adjustment and transportation device has wide application prospects and popularization value in the field of machining of building steel reinforcement frameworks.

The invention relates to the field of buildings, in particular to an externally-reinforced concrete-filled steel tube column and a peak bearing capacity calculation method, and the externally-reinforced concrete-filled steel tube column comprises a steel tube and core concrete located in the steel tube; a UHPC layer is poured on the outer ring of the steel pipe, the section of the outer ring of the UHPC layer is square, and the center line of the UHPC layer coincides with the axis of the steel pipe. Stirrups located on the outer ring of the steel pipe are embedded in the UHPC layer, and longitudinal steel bars are arranged on the inner ring of the stirrups in the vertical direction. The invention provides an external reinforcement type concrete filled steel tubular column. The method can reinforce the concrete filled steel tube with the annular void area, so that the actual bearing capacity of the concrete filled steel tube exceeds the original design value level. The invention further provides a method for calculating the peak bearing capacity of the externally-reinforced concrete-filled steel tube column, the peak bearing capacity of the reinforced concrete-filled steel tube can be quantitatively evaluated, and a theoretical basis is provided for subsequent use and maintenance of the concrete-filled steel tube.

An inverse stirrup for use in horseback riding that a horseback rider contacts with the top of the rider's foot to resist upward or transverse force and maintain position on the horse. The inverse stirrup is attached to the horse by means of a circumferential or semi-circumferential strap such as the girth strap passing beneath the horse such that the inverse stirrup resists displacement upward.

The utility model belongs to the field of steel bar processing, and particularly relates to a T-beam web stirrup installation jig frame which comprises a machine frame, bottom positioning pieces symmetrically fixed to the left side and the right side of the top of the machine frame and an air cylinder. The telescopic end of the air cylinder is fixedly provided with a side positioning piece through a bent plate connecting piece. The bottom positioning piece is used for placing the bottom of a T-beam web stirrup; a plurality of mounting grooves corresponding to the side parts of the T-beam web stirrups are formed in the side positioning pieces, and the mounting grooves in the side positioning pieces on the two sides are opposite and used for clamping and positioning the side parts of the T-beam web stirrups from the two sides; advancing and retreating of the mounting groove can be achieved through stretching and retracting of the air cylinder; the device is used for mounting and aligning the T-beam web stirrups; the T-beam web stirrup can be conveniently placed into the mounting jig frame through the mounting grooves, the mounting grooves in the two sides jointly act on the T-beam web stirrup, the alignment accuracy of the T-beam web stirrup and the perpendicularity of the T-beam web stirrup can be guaranteed, the labor intensity of workers can be reduced, and the production efficiency can be improved.

The invention provides an automatic point searching and pressing welding robot for a steel reinforcement framework. A base is assembled in a sliding mode in the first direction and the second direction which are perpendicular to each other. A welding device is arranged on the outer side of the base, longitudinal bar carding mechanisms are arranged on the two sides of the welding device, the two longitudinal bar carding mechanisms are symmetrically distributed on the two sides of the welding device, the welding device comprises a U-shaped welding part, and welding heads corresponding to points to be welded are arranged at the two ends of the U-shaped welding part; the welding device is assembled on the base in a sliding mode in the first direction, responds to the longitudinal bar carding mechanism, carded longitudinal bars and then extrudes the longitudinal bars on the stirrups to be welded, and the welding device welds and fixes the longitudinal bars and the stirrups towards the intersection points of the longitudinal bars and the stirrups. The longitudinal bar combing mechanism is arranged to comb longitudinal bars before welding, the welding device extends out to weld the intersection point of the stirrups and the longitudinal bars after the stirrups and the longitudinal bars are combed, so that the positioning precision of welding is guaranteed, and the longitudinal bar combing mechanism can move along with the lifting platform so as to adapt to the shape of the outer wall of the T-shaped beam, so that the welding requirement of the T-shaped beam is met.

The utility model relates to a prefabricated section steel UHPC-NC combination column which comprises ultra-high performance concrete, common concrete, H-shaped steel, longitudinal bars, stirrups and studs. The section steel concrete column is provided with an ultra-high performance concrete rectangular-ambulatory-plane column and a common concrete square column embedded with the H-shaped steel. The end part of the H-shaped steel is provided with a hook-shaped component, the middle part of a web plate is provided with a plurality of rows of holes and flanges, the web plate is welded with a plurality of rows of studs, and the common concrete square column is wrapped by an ultra-high performance concrete hollow square column which is internally provided with longitudinal bars and closed stirrups. Compared with the prior art, the structure is simple in construction, convenient to machine and construct, reasonable in design division, capable of fully utilizing resources, good in economic reliability, good in stress performance, large in rigidity and good in ductility, the problems of anti-seismic performance, stability and the like can be solved, and in addition, the fluidity of the internal structure is improved through the circular or regular polygon holes.

The invention provides box girder bottom and web reinforcement cage framework streamlined production equipment, and belongs to the technical field of box girder prefabrication processing. The box girder bottom and web reinforcement cage framework streamlined production equipment comprises a moving seat which is linearly and slidably mounted on the ground, and a longitudinal bar fixing assembly is arranged at one end of a first rail; an automatic welding machine, a tidying mechanism and a stock bin are sequentially arranged on the moving seat in the direction that the moving seat slides away from the longitudinal bar fixing assembly, the stock bin is used for horizontally arranging and placing the combined stirrups, shifting assemblies are further arranged on the moving seat and located on the two sides of the stock bin, and the tidying mechanism is used for fixing the combined stirrups and positioning longitudinal bars; the automatic welding machine is used for welding the joints of the combined stirrups and the longitudinal bars on the arranging mechanism, and a supporting assembly is arranged below the moving seat. The combined stirrups can be taken out of the stock bin through actions of the arranging mechanism and the material stirring machine, then the automatic welding machine is used for welding, the moving seat moves backwards by a certain distance after one round of welding, the next round of welding of the combined stirrups is carried out, and the welding and manufacturing efficiency of a reinforcement cage framework is improved.

The utility model relates to the technical field of reinforcement cage forming, and provides a stirrup shifting mechanism for highway prefabricated box girder reinforcement cage production, which comprises a stirrup clamping unit, a sliding cross beam, a sliding base and a mechanism support, the mechanism support is arranged on the side of the existing stirrup magazine; stirrup frameworks which are sequentially arranged in the longitudinal direction are hung on the stirrup magazine; the sliding base is fixedly arranged on the mechanism support; the sliding beam is horizontally arranged on the sliding base and is in sliding fit with the sliding base in the longitudinal direction. The stirrup clamping unit is arranged on the sliding cross beam and used for grabbing stirrup frameworks on the stirrup magazine one by one. The stirrup clamping unit grabs stirrup frameworks on the stirrup magazine one by one and horizontally moves to a target position under the action of the sliding cross beam, so that the stirrup frameworks on the stirrup magazine are pulled out one by one, welding operation of the stirrup frameworks and longitudinal bars can be conveniently carried out on subsequent stations, and a basic guarantee is provided for automatic production of prefabricated box girder reinforcement frameworks.

The invention relates to the technical field of reinforcement cage stirrup end pressing and welding, and discloses a modern assembly type construction engineering reinforcement cage stirrup end pressing and welding device which comprises a workbench, a guide rail is fixedly connected to the surface of the workbench, and a motor is fixedly connected to the end of the workbench. The output end of the motor is fixedly connected with a two-way threaded rod, the two sides of the workbench are fixedly connected with protection frames, and the two ends of the workbench are fixedly connected with sliding rods. According to the device, the fixing mechanism is arranged, firstly, a reinforcement cage is placed in a placement sleeve, then a motor is started to drive a two-way threaded rod to rotate, when the two-way threaded rod rotates, a moving disc slides on the surface of a guide rail in the direction close to each other, and when the moving disc moves, sliding groove plates are driven to move in the direction close to each other; when the sliding groove plate moves, the driven rod is driven to move in the direction close to each other, and when the driven rod moves, the stress plate is driven to move in the direction close to each other.

The utility model discloses a cap beam stirrup installation auxiliary tool which comprises a base, a suspender installation base and a suspender, the suspender installation base is horizontally and rotatably installed in the center of the top of the base, the suspender is provided with an operating rod and a lifting hook fixedly installed at the front end of the operating rod, and the operating rod is vertically and rotatably installed at the upper end of the suspender installation base. The distance from the rotating fulcrum of the operating rod to the lifting hook is smaller than that from the rotating fulcrum to the other end of the operating rod. The auxiliary tool is simple in structure, convenient and fast to manufacture, economical, convenient to operate and capable of effectively saving manpower, shortening stirrup installation time and improving stirrup installation efficiency.

The present invention discloses a fully automatic welding device and method for stirrups and U-shaped steel bars. The lower end of the frame is buried in a building pit, and the part of the frame in contact with the ground is fixed to the ground by a fixed bracket. The device also includes an upper welding head assembly and a lower welding head assembly. The upper and lower ends of the frame are respectively fixed with a frame slide rail assembly, and the upper welding head assembly and the lower welding head assembly are respectively slidably connected to the frame slide rail assembly. The upper welding head assembly and the lower welding head assembly are arranged relative to each other. Through the cooperation of the upper welding head assembly and the lower welding head assembly, the present invention can not only meet the demand for simultaneous welding of multiple layers and multiple welding points of steel cages in production line automation, realize automatic control, and greatly improve efficiency, but also can adapt to the changes in different steel cage heights, lengths, longitudinal spacings, transverse spacings, and diameters of welded steel bars in actual production, and can realize continuous production. The quality of welded products is stable, and high-intensity manual work is not required, which greatly improves production efficiency.

A combination jump rope with a removable handle assembly including a stirrup hand guard including a dome shaped push-up disc extending from the outside edge of a hand guard opposite the hollow handle having a removable end cap, a bearing member disposed within the outer end of the handle defining abb roller for stomach exercises, means for attaching the jump rope to an end of the handle opposite the bearing member, and weights for insertion inside the hollow handle.

The invention discloses a prefabricated welded water-stop steel plate column stirrup column penetrating structure, tool and construction method, and the construction method comprises the following operation steps: step 1, taking a section of water-stop belt steel plate as a column inner plate water-stop belt, and preparing a prefabricated welded water-stop steel plate column stirrup column penetrating tool, the prefabricated welded water stop steel plate column stirrup column penetrating tool comprises a fixing tool and a clamping tool, and a column inner plate water stop belt is fixed to the fixing tool; the invention relates to the technical field of water stop steel plate column penetrating construction, and has the beneficial effects that a column inner plate water stop belt and a multi-bend column stirrup are pre-welded and spliced in a factory through the prefabricated welding water stop steel plate column stirrup column penetrating tool to form a prefabricated assembly; during construction, only the prefabricated assembly needs to be directly sleeved with the longitudinal rib and bound, operation is easy, the construction efficiency is improved, the construction period is shortened, a large amount of welding work does not need to be conducted on a building site, and the safety coefficient is increased.

The invention belongs to the technical field of building prefabricated structures, and particularly relates to a steel reinforcement framework welding device which comprises a base. One side of the base is fixedly connected with a driving seat; the side, close to the base, of the driving base is rotationally connected with a rotating pipe. A plurality of rotating pipes are uniformly arranged on the surfaces of the rotating pipes; a plurality of evenly-arranged rotating arms are rotationally connected between the abutting plate and the rotating pipe, and the rotating arms are driven by a hydraulic system. The top surface of the base is slidably connected with a moving box; a shear fork type telescopic frame is arranged at the top of the interior of the moving box; the connecting seats are rotationally connected to the hinged positions of the shear fork type telescopic frames, the shear fork type telescopic frames drive the connecting seats and the stirrups on the connecting seats to move, the distances between the stirrups are the same, then the stirrups can be evenly welded to the surfaces of the main reinforcements, and therefore a user does not need to calculate the stirrups according to the length of the main reinforcements; therefore, a user can more quickly weld the stirrup and the main reinforcement together, and the production efficiency is further improved.

The utility model discloses a welding workbench, machining equipment, a machining system and a sleeper production line, the welding workbench is used for restraining a stirrup to the position meeting the welding requirement, and the welding workbench comprises a bearing table, a pressing unit, a first push-pull assembly and a second push-pull assembly; the pressing unit is fixed to the bearing table and used for pressing the stirrup to the bearing table in the vertical direction. The first push-pull assembly is installed on the upper surface of the bearing table and used for pushing the first welding section of the stirrup to move towards the second welding section to the welding position. The second push-pull assembly is installed on the upper surface of the bearing table and used for pushing the second welding section of the stirrup to move towards the first welding section to the welding position. According to the welding workbench disclosed by the invention, stirrups can be well restrained, and the production efficiency and the finished product percent of pass of welded stirrups can be effectively improved.

The utility model belongs to the technical field of steel bar forming, and discloses three-dimensional butterfly bar forming equipment. The three-dimensional butterfly rib forming equipment comprises a feeding device, a plane forming device, a first three-dimensional forming device, a second three-dimensional forming device and an unpowered conveying device which are sequentially arranged in the first direction. The plane forming device is used for forming a rectangular stirrup into a plane butterfly rib. The first three-dimensional forming device is used for forming the two plane butterfly ribs into a first three-dimensional butterfly rib; the second three-dimensional forming device is used for forming the two plane butterfly ribs into a second three-dimensional butterfly rib; the mechanical arm can walk in the first direction and grab and place the rectangular stirrups, the plane butterfly bars and the three-dimensional butterfly bars. According to the forming device, one-time machining forming from rectangular stirrups and plane butterfly ribs to three-dimensional butterfly ribs is achieved, the forming efficiency is high, the occupied space of the device is small, and the forming requirements of the three-dimensional butterfly ribs in various modes are met.

The utility model belongs to the technical field of T-beam web framework machining, and discloses a T-beam web framework rack car which comprises a base and rack car modules, at least two rack car modules are distributed on the base in the first direction, any rack car module is locked on the base through a locking module, and each rack car module comprises a rack, a positioning mechanism and a clamping mechanism. The clamping mechanism and the positioning mechanism are both arranged on the rack, the clamping mechanism is configured to clamp the two opposite sides of the stirrup in the second direction, and the positioning mechanism is configured to enable the stirrup to be in a vertical state; the first direction and the second direction are horizontal directions perpendicular to each other. According to the T-beam web framework bench car, the number of the bench car modules can be adjusted according to the length of a T-beam web framework, and the application range is wide.