Digital production management system and forming method for prefabricated small box girder

Abstract

The invention provides a prefabricated small box girder digital production management system, which comprises a research and development system, a production planning system, a box girder block production line system and a cloud platform, and is characterized in that the box girder block production line system comprises a management platform, a server database and a box girder block production line; the management platform is used for receiving a material list file output by the production planning system, converting an instruction and sending the instruction to the box girder block production line, the server database is used for storing production data in the production process, and the box girder block production line is used for producing box girder blocks, outputting the production quantity and uploading the production quantity to the server database; according to the digital production management system for the prefabricated small box girder, the number of operators is greatly reduced through digital automatic rapid manufacturing and forming, the working intensity of the operators is reduced, the manufacturing efficiency of reinforcing steel bar parts is improved to a certain extent, and the production cost is reduced. The assembly whole process precision control system can effectively improve the forming quality of the reinforcing steel bar component.

Description

Technical Field

[0001] The invention relates to the field of automated production of energy box girders, and in particular to a digital production management system and a forming method for prefabricated small box girders. Background Art

[0002] Transportation plays an increasingly important role in the country's economic development, and bridges are an indispensable and important part of transportation facilities. In order to improve the efficiency of bridge erection and reduce the number of workers working at heights, prefabricated box girders are widely used. Traditional steel bar processing is a labor-intensive industry. With the development of society and the advancement of technology, traditional industries can no longer meet the needs of modern construction. New processes, new technologies, and new methods are needed to improve the efficiency, quality, and safety of steel bar processing, which brings new challenges to the construction of box girder steel bar structures.

[0003] Prefabricated box girders are generally assembled with multiple spans and multiple beams. They are widely used in the field of bridge erection, and the number of them used is large. In traditional construction methods, the most common construction method at the box girder reinforcement construction site is to set up a simple artificial tire frame, place the semi-finished steel bars in the tire frame in turn, and perform positioning, tying or welding. The construction intensity is high, the construction efficiency is low, and the labor input is large. It is a labor-intensive operation, which invisibly increases the safety risk of the construction site; at the same time, due to the uneven technical level of workers, the quality of box girder reinforcement construction is also difficult to guarantee. In view of the problems of manual loose binding, large steel bar operation volume, large labor demand, poor working conditions, low manual positioning accuracy, and low construction efficiency in the traditional construction of bridge box girder reinforcement skeletons, industrial robots are currently used to partially replace manual labor to achieve local mechanization and intelligence. However, its investment cost is large, and it only has the effect of reducing manpower locally, and the level of industrial construction intelligence is far from enough. At the same time, it is difficult to guarantee the final assembly quality. The equipment structure is complex, the versatility is poor, the floor space is large, and the cost investment is large. Therefore, this method cannot bring about a great change in the overall industrial intelligent construction of prefabricated box girder reinforcement components. It is difficult to promote and apply it on a large scale.

[0004] At present, society's requirements for the construction efficiency, quality, safety and other aspects of large bridges are constantly increasing. How to achieve "assembly design, regional material supply, industrialized production, rapid installation, and intelligent control"? Therefore, a digital production management system and forming method for prefabricated small box girders are needed. Summary of the invention

[0005] The main purpose of the present invention is to provide a digital production management system and forming method for prefabricated small box girders, which solves the problems in the above-mentioned background technology that all existing construction methods are manually tied steel bars, with high labor intensity, low efficiency, poor quality, and high manpower input, and realizes assembly design, regionalized material feeding, industrialized production, rapid installation, and intelligent control.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a digital production management system for prefabricated small box girders, including a research and development system, a production planning system, a box girder block production line system, and a cloud platform; The box girder block production line system includes a management platform, a server database, and a box girder block production line. The management platform is used to receive the bill of materials file output from the production planning system and convert the instructions to the box girder block production line; The server database is used to store production data during the production process; The box girder block production line is used to produce box girder blocks and output the production quantity and upload it to the server database.

[0007] In the preferred solution, the R&D system includes an R&D terminal, an R&D database, an encryption module, a gallery module, and a coding module. The R&D terminal is used for R&D personnel to upload engineering drawings and engineering construction parameters, the R&D database is used to store engineering drawings and engineering construction parameters, the encryption module is used to encrypt engineering drawings, the gallery module is used to store encrypted drawings, and the coding module is used to recode engineering drawings when production calls them. The production planning system includes a planning terminal, a pre-scheduling module, and a production terminal. The planning terminal is used to arrange the corresponding production plan and issue the design cycle to the R&D terminal. The pre-scheduling module receives and sorts the instructions from the planning terminal. The production terminal is used by operators to retrieve production engineering drawings and receive the plan arrangements from the scheduling module. The cloud platform is used to organize the production data uploaded from the server database and feed it back to the pre-production scheduling module to update the production plan in real time.

[0008] In the preferred solution, the box girder block production line includes a scattering machine, a shearing and welding machine, a material distribution platform, a stirrup production machine, a shearing machine, a bottom welding machine, a bending machine, a top welding machine, a forming platform, and a QR code printing module; The scattering machine is used to scatter the bar-shaped steel bar raw materials, the shearing and welding machine is used to cut the bar-shaped steel bar and re-lengthen it to the fixed-length longitudinal reinforcement of the designed length, the material distribution platform is used to divide the received longitudinal reinforcement into two layers, the stirrup production machine is used to process the coiled steel bar into straight steel bars, the shearing machine is used to shear the straight steel bars to the fixed-length stirrups of the designed length, the bottom welding machine is used to weld the intersection of the fixed-length longitudinal reinforcement and the fixed-length stirrups, the bending machine is used to bend the fixed-length stirrups that have been welded with the fixed-length longitudinal reinforcement, and the top welding machine is used to weld the bent fixed-length stirrups to the fixed-length longitudinal reinforcement above; The semi-finished products produced by the fabric platform and the shearing machine are transported to the bottom welding machine for processing. The forming platform finally produces the box girder block. The QR code printing module prints the QR code on the box girder block and uploads the QR code information to the server database.

[0009] In the preferred embodiment, a length detection module is provided in the shearing and welding machine to collect information on the length of the longitudinal reinforcement, a quantity detection module is provided in the material distribution platform to collect information on the quantity of the longitudinal reinforcement, and a weighing calculation module is provided at the placement racks for the rod-shaped steel bar raw materials and the coiled steel bar raw materials to collect information on the weight of the steel bar raw materials; The frames of the bottom welding machine and the top welding machine are provided with welding point recognition modules to identify the intersection position of the longitudinal reinforcement and the stirrups. The shearing machine is provided with a length measurement module to collect the stirrup length information. The bending machine is provided with a bending parameter module to collect the bending parameters of the stirrups. The storage and call of box girder blocks require scanning codes to enter and exit the warehouse. The scanned code information is eventually collected by the information acquisition module and uploaded to the server database.

[0010] A method for forming a prefabricated small box beam, the method comprising: S1, assemble box beam frame; S2. Use special lifting equipment to hoist the bottom plate C-type mesh into the box beam frame; S3. Use a special lifting device to lift the bottom plate flat mesh to the top of the bottom plate C-shaped mesh and assemble it with the bottom plate C-shaped mesh; S4, corrugated pipes are inserted into the bottom plate reinforcement cage; S5. Insert annular longitudinal reinforcement at the intersection of the bottom plate flat mesh and the bottom plate C-shaped mesh, tie and fix them, then lap weld them at the wrong ends; S6. Use a special hoist to first hoist the left C-shaped mesh and the right C-shaped mesh into the box girder frame, and then hoist the left flat mesh and the right flat mesh into the box girder frame for splicing with the left C-shaped mesh and the right C-shaped mesh; S7. Cross-tie the stirrups of the left web reinforcement cage, the right web reinforcement cage and the bottom plate reinforcement cage, and use annular longitudinal reinforcement to tie and fix the cross position, and then lap weld them; S8, corrugated pipes are inserted into the left web reinforcement cage and the right web reinforcement cage; S9. Insert positioning steel bars through each corrugated pipe; S10, using a special lifting device to lift the semi-finished steel cage into the prefabricated mold; S11. Use a special hoist to lift the top plate C-shaped mesh to the top of the semi-finished steel cage and place it horizontally on the top of the prefabricated mold. The elevations of both sides of the top plate C-shaped mesh are consistent; S12, docking and positioning the top plate C-shaped mesh with the semi-finished steel cage, inserting it into the left web steel cage and the right web steel cage, and cross-tying it; S13. Use a special hoist to overlap and connect the top plate flat mesh and the top plate C-shaped mesh, and then perform overlap welding.

[0011] In the preferred embodiment, the box girder frame includes a bottom plate frame and a top plate frame, and a left web plate frame and a right web plate frame are symmetrically arranged on both sides of the bottom plate frame; The box girder cradle is in the shape of a U-shaped long groove, and the left web cradle and the right web cradle are erected at a certain angle.

[0012] In the preferred embodiment, the special sling includes a sling frame and a connecting fastener, and a plurality of steel cables are provided between the connecting fastener and the sling frame; Crossbeam slide rails are arranged on both sides of the spreader frame, and a rack is arranged in the middle of the crossbeam slide rails.

[0013] In the preferred embodiment, a plurality of movable beam slide blocks are provided on the beam slide rail, a sling beam is provided between the beam slide blocks, and a rack is provided below the sling beam.

[0014] In the preferred embodiment, a hook is provided below the crossbeam slider, a lifting hole is fixed on the hook, a guide groove is provided above the hook, a lateral force and a rack groove are provided below the guide groove, and a lateral gear is provided on the output shaft of the lateral force, and the lateral gear is located on one side of the rack groove; A plurality of transverse rollers are also arranged in the guide groove.

[0015] In the preferred embodiment, a hand chain hoist is provided in the middle of the lifting hole, another hand chain hoist is provided below the hand chain hoist on one side, a steel cable is provided between the hand chain hoists, and a tightening device is provided below the hand chain hoist on the other side; One end of the tightening device is connected to the steel cable, and the other end is connected to the semi-finished steel cage. A rotatable tightening mechanism is provided in the middle section of the tightening device for adjusting the length of the steel cable.

[0016] The present invention provides a digital production management system and forming method for prefabricated small box beams, which have the following beneficial effects: 1. The present invention provides a digital production management system for prefabricated small box beams. The digital automatic and rapid production and forming greatly reduces the number of operators and the workload of operators, and improves the production efficiency of steel bar parts to a certain extent. The assembly-wide precision control system can effectively improve the forming quality of steel bar parts. 2. The present invention provides a forming method for a prefabricated small box girder. The box girder blocks are automatically formed on an automated production line. Only a simple frame is required to lift and assemble the four blocks. The overall production efficiency of the parts is high, avoiding the safety risks of traditional processes and operators working in groups.

[0017] 3. The present invention provides a digital production management system for prefabricated small box girders, which eliminates the traditional paper drawing process, opens up the information channel between BIM data and equipment through the cloud platform, collects process data in real time, and facilitates factory managers to grasp the on-site production progress in real time, and discovers weak links in management by analyzing the detailed progress data of the blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 is a flow chart of the digital production system of the present invention; Figure 2 It is a flow chart of the digital system of the box beam block production line of the present invention; Figure 3 It is a diagram of the splicing process of the bottom plate reinforcement cage of the present invention; Figure 4 1. is a top view of a box beam tire frame of the present invention; Figure 5 It is a schematic diagram of the hoisting of the left abdominal C-shaped mesh and the right abdominal C-shaped mesh of the present invention; Figure 6 It is a diagram of the splicing process of the left web reinforcement cage and the right web reinforcement cage of the present invention; Figure 7 It is a schematic diagram of hoisting the semi-finished steel cage of the present invention; Figure 8 This is a schematic diagram of the hoisting of the top plate reinforcement cage of the present invention; Fig. 9 This is a schematic diagram of assembling the C-shaped mesh of the top plate of the present invention; Fig.10 This is a schematic diagram of assembling the top plate plane mesh of the present invention; Fig.11 It is an axonometric view of the special lifting device of the present invention; Fig.12 is an axonometric view of the crossbeam slider of the present invention; Fig.13 It is a cross-sectional view of the crossbeam slider of the present invention.

[0019] In the figure: box girder frame 1; left web frame 101; right web frame 102; bottom plate frame 103; top plate frame 104; box girder block 2; bottom plate steel cage 201; bottom plate C-shaped mesh 2011; bottom plate flat mesh 2012; corrugated pipe 202; top plate steel cage 203; top plate flat mesh 2031; top plate C-shaped mesh 2032; left web steel cage 204; left abdominal C-shaped mesh 2041; left abdominal flat mesh 2042; right web steel cage 205; right abdominal C-shaped mesh 2051; right abdominal plane mesh 2052; annular longitudinal reinforcement 206; positioning reinforcement 207; special sling 3; connecting fastener 301; beam slider 302; sling beam 303; hook 304; steel cable 305; hand chain hoist 306; tightening device 307; sling frame 308; beam slide rail 309; lifting hole 310; transverse moving force 311; guide groove 312; rack groove 313; transverse gear 314; transverse roller 315; limit block 316; prefabricated mold 4. DETAILED DESCRIPTION

[0020] Example 1 like Figure 1-2 As shown, a digital production management system for prefabricated small box girders includes a research and development system, a production planning system, a box girder block production line system, and a cloud platform; The box girder block production line system includes a management platform, a server database, and a box girder block production line. The management platform is used to receive the bill of materials file output from the production planning system and convert the instructions to the box girder block production line; The server database is used to store production data during the production process; The box girder block production line is used to produce box girder blocks and output the production quantity and upload it to the server database.

[0021] In the preferred solution, the R&D system includes an R&D terminal, an R&D database, an encryption module, a gallery module, and a coding module. The R&D terminal is used for R&D personnel to upload engineering drawings and engineering construction parameters, the R&D database is used to store engineering drawings and engineering construction parameters, the encryption module is used to encrypt engineering drawings, the gallery module is used to store encrypted drawings, and the coding module is used to recode engineering drawings when production calls them. The production planning system includes a planning terminal, a pre-scheduling module, and a production terminal. The planning terminal is used to arrange the corresponding production plan and issue the design cycle to the R&D terminal. The pre-scheduling module receives and sorts the instructions from the planning terminal. The production terminal is used by operators to retrieve production engineering drawings and receive the plan arrangements from the scheduling module. The cloud platform is used to organize the production data uploaded from the server database and feed it back to the pre-production scheduling module to update the production plan in real time.

[0022] In the preferred solution, the box girder block production line includes a scattering machine, a shearing and welding machine, a material distribution platform, a stirrup production machine, a shearing machine, a bottom welding machine, a bending machine, a top welding machine, a forming platform, and a QR code printing module; The scattering machine is used to scatter the bar-shaped steel bar raw materials, the shearing and welding machine is used to cut the bar-shaped steel bar and re-lengthen it to the fixed-length longitudinal reinforcement of the designed length, the material distribution platform is used to divide the received longitudinal reinforcement into two layers, the stirrup production machine is used to process the coiled steel bar into straight steel bars, the shearing machine is used to shear the straight steel bars to the fixed-length stirrups of the designed length, the bottom welding machine is used to weld the intersection of the fixed-length longitudinal reinforcement and the fixed-length stirrups, the bending machine is used to bend the fixed-length stirrups that have been welded with the fixed-length longitudinal reinforcement, and the top welding machine is used to weld the bent fixed-length stirrups to the fixed-length longitudinal reinforcement above; The semi-finished products produced by the fabric platform and the shearing machine are transported to the bottom welding machine for processing. The forming platform finally produces the box girder block. The QR code printing module prints the QR code on the box girder block and uploads the QR code information to the server database.

[0023] In the preferred embodiment, a length detection module is provided in the shearing and welding machine to collect information on the length of the longitudinal reinforcement, a quantity detection module is provided in the material distribution platform to collect information on the quantity of the longitudinal reinforcement, and a weighing calculation module is provided at the placement racks for the rod-shaped steel bar raw materials and the coiled steel bar raw materials to collect information on the weight of the steel bar raw materials; The frames of the bottom welding machine and the top welding machine are provided with welding point recognition modules to identify the intersection position of the longitudinal reinforcement and the stirrups. The shearing machine is provided with a length measurement module to collect the stirrup length information. The bending machine is provided with a bending parameter module to collect the bending parameters of the stirrups. The storage and call of box girder blocks require scanning codes to enter and exit the warehouse. The scanned code information is eventually collected by the information acquisition module and uploaded to the server database. A digital production management system for prefabricated small box girders, the overall process is as follows: a new box girder production task is created on the planning terminal, and a design order is issued to the R&D terminal. The planning terminal then selects the box girder model to be processed from the structural decomposition table of the engineering project, and issues the demand order to the pre-production scheduling module. The pre-production scheduling module receives the scheduling information from the planning terminal and sorts the production tasks by itself. The pre-production scheduling module issues instructions to the production terminal; After completing the structural design and development, the R&D terminal uploads the R&D data and drawings to the R&D database. The R&D database is encrypted and then stored in the library module. When the production terminal needs to call the production engineering drawing, the coding module will recode the engineering drawing and send it to the production terminal. After receiving the production task, the production terminal established the parametric model of the box girder reinforcement cage according to the two-dimensional drawings. Planbar software was used to establish the reinforcement BIM model. Factors affecting the cutting length, such as bending, hooks, anchoring, and overlap, were considered during the reinforcement modeling. The high-precision reinforcement model was exported as a reinforcement processing file in BVBS format to ensure that the generated reinforcement data file can directly guide the reinforcement processing; The model is sliced ​​according to certain division principles to obtain four box beam blocks. Each block is composed of stirrups, longitudinal bars and hook bars. The stirrups are made of wire rods, and the hook bars are made of vertical bending centers. The bill of materials files of the four blocks can be exported from the BIM model, including the size and quantity information of the stirrups, the size and quantity information of the longitudinal bars, and the size and quantity of the hook bars; After receiving the task, the management platform in the box girder block production line system will lay the stirrups and longitudinal reinforcements, automatically count the weight of the wire rods consumed according to the size, upload it to the server database and feedback it to the cloud platform, and the cloud platform will revise the pre-scheduled material information. Similarly, the vertical bending center will receive the hook bar processing task, and feedback the processing progress in real time during the processing. The box girder block production line is a multi-line production line that simultaneously produces box girder blocks of various parts. The specific implementation path is as follows: (1) Configure the intelligent gateway on the CNC equipment of the steel bar processing plant, and connect the PLC and screen of the equipment through the network port or serial port (RS-232, RS-485) of the equipment; (2) Configure the corresponding devices and device variable templates on the gateway platform. First, configure the slave type and connection method in the change template, including the network port or serial port. The former configures the PLC's IP, port and slave address, and the latter configures the serial port address and slave address. The settings of the variable template mainly include the PLC point, variable name, variable identifier (used by the system to identify the corresponding variable), register address, data format, storage method, read and write method, etc. (3) Management platform server, configure the server address, user name, password, data reporting cycle (device data reporting cycle interval), reporting method (device data reporting method, supporting periodic reporting, change reporting, etc.), heartbeat cycle (network heartbeat reporting interval), etc. on the gateway (4) On the device side, the processing task is entered according to the processing order. The gateway converts the Modbus TCP data of the task into management platform data, and the gateway publishes messages as the management platform client. (5) Parse the steel bar legend into corresponding processing parameters; the processing parameters of the shearing order are parsed and configured by the management platform according to the system optimization cutting plan. The main configuration parameters include the number of processed roots, steel bar diameter, total length of raw material, shearing length, number of shearing times, etc. The processing parameters of the bending list are analyzed and configured by the management platform based on the steel bar graphics and specific parameters of the material list. The main configuration parameters include the number of processed roots, steel bar diameter, total length of raw materials, bending length, bending angle, etc. The management platform publishes the corresponding processing parameters, including the processing parameters of shearing, sawing, vertical bending, horizontal bending and other equipment, such as cutting length, cutting times, bending side length, bending angle, etc. In the preferred embodiment, a length detection module is provided in the shearing and welding machine to collect information on the length of the longitudinal reinforcement, a quantity detection module is provided in the material distribution platform to collect information on the quantity of the longitudinal reinforcement, and a weighing calculation module is provided at the placement racks for the rod-shaped steel bar raw materials and the coiled steel bar raw materials to collect information on the weight of the steel bar raw materials; The frames of the bottom welding machine and the top welding machine are provided with welding point recognition modules to identify the intersection position of the longitudinal reinforcement and the stirrups. The shearing machine is provided with a length measurement module to collect the stirrup length information. The bending machine is provided with a bending parameter module to collect the bending parameters of the stirrups. (6) The gateway subscribes to the processing parameter message and converts the management platform data into Modbus TCP data. The device screen loads and displays the data in the download area according to the received processing parameters, and copies it to the work area at the same time. The rebar workers perform processing according to the processing parameters. (7) According to the processing line configured on site, by issuing processing parameters including the number of material feeds and bending tasks, the shearing machine can be connected with the feeder and bending machine on site, and the number of material feeds can be sent to the feeder. When shearing is completed, the bending task can be sent to the bending machine. By binding the shearing processing parameters to the number of material feeds, bending tasks, etc., the shearing processing parameters can be issued with one click to realize the automated processing of feeding, shearing and bending.

[0024] After the processing of the box girder blocks is completed, the storage and call of the box girder blocks require scanning codes to enter and scan codes to exit the warehouse. The scanned code information is finally collected by the information collection module and uploaded to the server database.

[0025] Example 2 Further illustrate with reference to Example 1, Figure 3-10 The structure shown is a method for forming a prefabricated small box beam, the method comprising: S1. Assemble the box girder frame 1, and use the transfer trolley to transfer the box girder blocks of each part from the processing workshop to the component production area; prepare the support frame of the left web frame 101, the right web frame 102, the bottom plate frame 103 and the top plate frame 104: the columns of the support frame are set every 2 meters. The comb rod device is set at the loose binding section at both ends. The left web frame 101 and the right web frame 102 are arranged and positioned according to the layout drawing, and the support surface elevation is adjusted to be consistent.

[0026] S2, using a special lifting device 3 to lift the bottom plate C-shaped mesh 2011 into the box beam tire frame 1; S3, using a special lifting device 3 to lift the bottom plate flat mesh 2012 to the top of the bottom plate C-shaped mesh 2011 and assemble and splice it with the bottom plate C-shaped mesh 2011; S4, the bottom plate steel cage 201 is interspersed with a corrugated pipe 202, and the spacing of the corrugated pipe 202 is 600mm; S5. The annular longitudinal reinforcement 206 is inserted into the intersection of the bottom plate plane mesh 2012 and the bottom plate C-shaped mesh 2011, and then tied and fixed, and then staggered and overlap-welded; S6, using the special lifting device 3 to firstly lift the left C-shaped mesh 2041 and the right C-shaped mesh 2051 into the box girder frame 1, and then lift the left flat mesh 2042 and the right flat mesh 2052 into the box girder frame 1 to splice with the left C-shaped mesh 2041 and the right C-shaped mesh 2051; S7, cross-binding the stirrups of the left web reinforcement cage 204 and the right web reinforcement cage 205 with the bottom plate reinforcement cage, and fixing the cross position with annular longitudinal reinforcement 206 and then lap-welding them; S8, the corrugated tube 202 is inserted into the left web reinforcement cage 204 and the right web reinforcement cage 205; S9, inserting the positioning steel bar 207 into each corrugated tube 202; S10, using a special lifting device 3 to lift the semi-finished steel cage into the prefabricated mold 4; S11, using a special lifting device 3 to lift the top plate C-shaped mesh 2032 to the top of the semi-finished steel cage and horizontally place it on the top of the prefabricated mold 4, with the elevations of both sides of the top plate C-shaped mesh 2032 being consistent; S12, docking and positioning the top plate C-shaped mesh 2032 with the semi-finished steel cage, inserting it into the left web steel cage 204 and the right web steel cage 205, and cross-tying them; S13, using a special hanger 3 to align and overlap the top plate flat mesh 2031 and the top plate C-shaped mesh 2032, and then perform overlap welding.

[0027] Example 3, combined with Example 2, further illustrates that Figure 11-13 Shown In the preferred embodiment, the box beam tire frame 1 includes a bottom plate tire frame 103 and a top plate tire frame 104, and a left web tire frame 101 and a right web tire frame 102 are symmetrically arranged on both sides of the bottom plate tire frame 103; The box girder frame 1 is in the shape of a U-shaped long groove, and the left web frame 101 and the right web frame 102 are erected at a certain angle.

[0028] In the preferred embodiment, the special sling 3 includes a sling frame 308 and a connecting fastener 301, and a plurality of steel cables 305 are provided between the connecting fastener 301 and the sling frame 308; Crossbeam slide rails 309 are provided on both sides of the sling frame 308, and a rack is also provided in the middle of the crossbeam slide rail 309.

[0029] In the preferred embodiment, a plurality of movable beam sliders 302 are provided on the beam slide rail 309 , a sling beam 303 is provided between the beam sliders 302 , and a rack is provided below the sling beam 303 .

[0030] In the preferred embodiment, a hook 304 is provided below the crossbeam slider 302, a lifting hole 310 is fixed on the hook 304, a guide groove 312 is provided above the hook 304, a lateral force 311 and a rack groove 313 are provided below the guide groove 312, and a lateral gear 314 is provided on the output shaft of the lateral force 311, and the lateral gear 314 is located on one side of the rack groove 313; A plurality of transverse rollers 315 are also provided in the guide groove 312 .

[0031] In the preferred embodiment, a hand chain hoist 306 is provided in the middle of the lifting hole 310, another hand chain hoist 306 is provided below the hand chain hoist 306 on one side, a steel cable 305 is provided between the hand chain hoists 306, and a tightening device 307 is provided below the hand chain hoist 306 on the other side; One end of the tightening device 307 is connected to the steel cable 305 , and the other end is connected to the semi-finished steel cage. A rotatable tightening mechanism is provided in the middle section of the tightening device 307 for adjusting the length of the steel cable 305 . The specific functions of the special spreader 3 are as follows: Figure 5 , Fig.11 , Fig.12 and Fig.13 As shown: use the handle to individually control a set of symmetrical beam sliders 302, align the hand winch 306 and the tightening device 307 under the hoist beam 303 with the gap of the steel cage and lock them. After lifting the left C-type mesh 2041 or the right C-type mesh 2051, the cutting angle of the mesh can be changed by adjusting the tightening device 307 to adapt to the U-shaped groove of the box beam frame 1.

[0032] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A digital production management system for prefabricated small box beams, characterized by: Including R&D system, production planning system, box girder block production line system, and cloud platform; The box girder block production line system includes a management platform, a server database, and a box girder block production line. The management platform is used to receive the bill of materials file output from the production planning system and convert the instructions to the box girder block production line; The server database is used to store production data during the production process; The box girder block production line is used to produce box girder blocks and output the production quantity and upload it to the server database.

2. According to claim 1, a digital production management system for prefabricated small box beams is characterized by: The R&D system includes an R&D terminal, an R&D database, an encryption module, a gallery module, and a coding module. The R&D terminal is used by R&D personnel to upload engineering drawings and engineering construction parameters. The R&D database is used to store engineering drawings and engineering construction parameters. The encryption module is used to encrypt engineering drawings. The gallery module is used to store encrypted drawings. The coding module is used to recode engineering drawings when production calls them. The production planning system includes a planning terminal, a pre-scheduling module, and a production terminal. The planning terminal is used to arrange the corresponding production plan and issue the design cycle to the R&D terminal. The pre-scheduling module receives and sorts the instructions from the planning terminal. The production terminal is used by operators to retrieve production engineering drawings and receive the plan arrangements from the scheduling module. The cloud platform is used to organize the production data uploaded from the server database and feed it back to the pre-production scheduling module to update the production plan in real time.

3. According to claim 1, a digital production management system for prefabricated small box beams is characterized by: The box girder block production line includes a scattering machine, a shearing and welding machine, a material distribution platform, a stirrup production machine, a shearing machine, a bottom welding machine, a bending machine, a top welding machine, a forming platform, and a QR code printing module; The scattering machine is used to scatter the bar-shaped steel bar raw materials, the shearing and welding machine is used to cut the bar-shaped steel bar and re-lengthen it to the fixed-length longitudinal reinforcement of the designed length, the material distribution platform is used to divide the received longitudinal reinforcement into two layers, the stirrup production machine is used to process the coiled steel bar into straight steel bars, the shearing machine is used to shear the straight steel bars to the fixed-length stirrups of the designed length, the bottom welding machine is used to weld the intersection of the fixed-length longitudinal reinforcement and the fixed-length stirrups, the bending machine is used to bend the fixed-length stirrups that have been welded with the fixed-length longitudinal reinforcement, and the top welding machine is used to weld the bent fixed-length stirrups to the fixed-length longitudinal reinforcement above; The semi-finished products produced by the fabric platform and the shearing machine are transported to the bottom welding machine for processing. The forming platform finally produces the box girder block. The QR code printing module prints the QR code on the box girder block and uploads the QR code information to the server database.

4. According to claim 3, a digital production management system for prefabricated small box beams is characterized by: The shearing and welding machine is provided with a length detection module to collect information on the length of the longitudinal reinforcement, the material distribution platform is provided with a quantity detection module to collect information on the quantity of the longitudinal reinforcement, and the placement racks for the rod-shaped steel bar raw materials and the coiled steel bar raw materials are provided with a weighing calculation module to collect information on the weight of the steel bar raw materials; The frames of the bottom welding machine and the top welding machine are provided with welding point recognition modules to identify the intersection position of the longitudinal reinforcement and the stirrups. The shearing machine is provided with a length measurement module to collect the stirrup length information. The bending machine is provided with a bending parameter module to collect the bending parameters of the stirrups. The storage and call of box girder blocks require scanning codes to enter and exit the warehouse. The scanned code information is eventually collected by the information acquisition module and uploaded to the server database.

5. A method for forming a prefabricated small box beam, characterized in that: The method includes: S1, assembling the box beam frame (1); S2. Use a special lifting device (3) to lift the bottom plate C-shaped mesh (2011) into the box beam frame (1); S3, using a special lifting device (3) to lift the bottom plate flat mesh (2012) to the top of the bottom plate C-shaped mesh (2011) and assemble and splice it with the bottom plate C-shaped mesh (2011); S4, a corrugated pipe (202) is inserted into the bottom plate reinforcement cage (201); S5, annular longitudinal reinforcement (206) is inserted into the intersection of the bottom plate plane mesh (2012) and the bottom plate C-shaped mesh (2011), and is tied and fixed before being overlap-welded; S6. Use a special lifting device (3) to first lift the left C-shaped mesh (2041) and the right C-shaped mesh (2051) into the box girder frame (1), and then lift the left flat mesh (2042) and the right flat mesh (2052) into the box girder frame (1) to splice them with the left C-shaped mesh (2041) and the right C-shaped mesh (2051); S7, cross-binding the stirrups of the left web reinforcement cage (204) and the right web reinforcement cage (205) with the bottom plate reinforcement cage, and fixing the cross-positions with annular longitudinal reinforcements (206) and then lap-welding them; S8, a corrugated tube (202) is inserted into the left web reinforcement cage (204) and the right web reinforcement cage (205); S9, inserting a positioning steel bar (207) into each corrugated tube (202); S10, using a special lifting device (3) to lift the semi-finished steel cage into the prefabricated mold (4); S11, using a special lifting device (3), lifting the top plate C-shaped mesh (2032) to the top of the semi-finished steel cage and placing it horizontally on the top of the prefabricated mold (4), with the elevations of both sides of the top plate C-shaped mesh (2032) being consistent; S12, docking and positioning the top plate C-shaped mesh (2032) and the semi-finished steel cage, inserting the mesh into the left web steel cage (204) and the right web steel cage (205), and cross-tying them; S13, using a special lifting device (3), aligning and overlapping the top plate flat mesh (2031) and the top plate C-shaped mesh (2032), and performing overlap welding.

6. The method for forming a prefabricated small box beam according to claim 5 is characterized by: The box girder frame (1) comprises a bottom plate frame (103) and a top plate frame (104), and a left web frame (101) and a right web frame (102) are symmetrically provided on both sides of the bottom plate frame (103); The box girder frame (1) is in the shape of a U-shaped long groove, and the left web frame (101) and the right web frame (102) are erected at a certain angle.

7. The method for forming a prefabricated small box beam according to claim 5, characterized in that: The special lifting device (3) comprises a lifting device frame (308) and a connecting fastener (301), and a plurality of steel cables (305) are arranged between the connecting fastener (301) and the lifting device frame (308); Crossbeam slide rails (309) are provided on both sides of the sling frame (308), and a rack is provided in the middle of the crossbeam slide rail (309).

8. The method for forming a prefabricated small box beam according to claim 7, characterized in that: A plurality of movable beam slide blocks (302) are arranged on the beam slide rail (309), a sling beam (303) is arranged between the beam slide blocks (302), and a rack is arranged below the sling beam (303).

9. The method for forming a prefabricated small box beam according to claim 8, characterized in that: A hook (304) is provided below the crossbeam slider (302), a lifting hole (310) is fixedly provided on the hook (304), a guide groove (312) is provided above the hook (304), a lateral moving force (311) and a rack groove (313) are provided below the guide groove (312), a lateral moving gear (314) is provided on the output shaft of the lateral moving force (311), and the lateral moving gear (314) is located on one side of the rack groove (313); A plurality of transverse rollers (315) are also provided in the guide groove (312).

10. A method for forming a prefabricated small box beam according to claim 9, characterized in that: A hand chain hoist (306) is provided in the middle of the lifting hole (310), another hand chain hoist (306) is provided below the hand chain hoist (306) on one side, a steel cable (305) is provided between the hand chain hoists (306), and a tightening device (307) is provided below the hand chain hoist (306) on the other side; One end of the tightening device (307) is connected to the steel cable (305), and the other end is connected to the semi-finished steel cage. A rotatable tightening mechanism is provided in the middle section of the tightening device (307) for adjusting the length of the steel cable (305).

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