Container corner column welding production line

Abstract

According to the scheme, the container corner column welding production line comprises a machine frame, a material storage frame is arranged on the machine frame, and the top of the material storage frame is used for supporting a corner column with the length direction extending in the transverse direction; the material storage rack comprises a plurality of material storage stations which are arranged at intervals from upstream to downstream in the longitudinal direction, and the different material storage stations on the material storage rack are used for placing corner columns under different working conditions; the reciprocating conveying device comprises a bracket arranged on the rack, the bracket extends in the longitudinal direction, and the bracket and the material storage frame are arranged in a spaced mode in the transverse direction; a plurality of positioning grooves with upward openings are formed in the top face of the bracket at intervals from upstream to downstream in the longitudinal direction, the positioning grooves are used for containing corner columns, and the distance between every two adjacent positioning grooves is matched with the distance between every two adjacent material storage stations; according to the reciprocating conveying device, stable and sequential conveying and effective positioning of the transverse corner columns among different material storage stations can be continuously achieved, and the stable production takt is kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of container corner post welding, in particular to a container corner post welding production line. BACKGROUND

[0002] The front corner post of a container is an important link in the production of the front end of the container. At present, the corner post extending longitudinally is conveyed by a roller bed in a longitudinal direction, which is difficult to effectively position the corner post. Meanwhile, the corner post and other parts such as corner fittings conveyed need to be manually assembled, the operation time of different stations is different, the production rhythm of the whole production process is unstable, the production efficiency and quality are low, and it is difficult to meet the capacity demand. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above problems, the present application provides a container corner post welding production line.

[0004] According to an aspect of the embodiments of the present application, a container corner post welding production line is disclosed, comprising: a rack, a storage rack is arranged on the rack, and the top of the storage rack is used to support a corner post extending in a transverse direction; the storage rack comprises a plurality of storage stations arranged at intervals from upstream to downstream in a longitudinal direction, and different storage stations on the storage rack are used to place corner posts in different working conditions;

[0005] A reciprocating conveying device comprises a bracket arranged on the rack, the bracket extends in a longitudinal direction, and the bracket and the storage rack are arranged at intervals in a transverse direction; a plurality of positioning grooves with open top are arranged at intervals in a longitudinal direction from upstream to downstream on the top surface of the bracket, and the positioning grooves are used to accommodate corner posts, and the spacing between two adjacent positioning grooves matches the spacing between two adjacent storage stations;

[0006] The bracket can move up and down and move longitudinally relative to the storage rack;

[0007] Among them: the bracket can move longitudinally to make one of the positioning grooves below the corner post on one of the storage stations of the storage rack, the bracket can rise to support the corner post in the positioning groove, and make the corner post separate from the storage rack, then the bracket can move longitudinally to move the corner post to the next storage station of the storage rack, and then lower to make the corner post transfer to the storage rack.

[0008] In an exemplary embodiment, the rack comprises a conveying chassis, the reciprocating conveying device comprises a vertical driving member and a movable frame, the vertical driving member is arranged on the conveying chassis, the bracket is arranged on the movable frame, and the vertical driving member drives the movable frame to move up and down relative to the conveying chassis by driving connection.

[0009] In an exemplary embodiment, the reciprocating conveying device comprises a lifting guide device, which is arranged on one of the movable frame and the conveying chassis, and is configured to longitudinally and laterally position the movable frame relative to the conveying chassis.

[0010] The movable frame forms a frame structure.

[0011] The lifting guide device comprises a plurality of first rollers arranged on the conveying chassis. The first rollers are longitudinally spaced apart, and the rolling surfaces of the first rollers are respectively capable of abutting against the lateral sides of the frame structure, so that the movable frame is lifted relative to the conveying chassis, and the first rollers are capable of rolling along the frame structure and limiting lateral movement of the frame structure.

[0012] The lifting guide device comprises a plurality of second rollers arranged on the conveying chassis. The rolling surfaces of the second rollers are respectively capable of abutting against the longitudinal sides of the frame structure, so that the movable frame is lifted relative to the conveying chassis, and the second rollers are capable of rolling along the frame structure and limiting longitudinal movement of the frame structure.

[0013] In an exemplary embodiment, the reciprocating conveying device comprises a longitudinal driving member arranged on the movable frame. The bracket is longitudinally slidably connected to the movable frame. The longitudinal driving member is drivingly connected to the bracket, so that the longitudinal driving member drives the bracket to longitudinally move relative to the movable frame.

[0014] In an exemplary embodiment, the longitudinal driving member comprises a motor and a transmission assembly. The motor is arranged on the movable frame. The motor rotationally drives an input end of the transmission assembly. An output end of the transmission assembly is connected to the bracket. The transmission assembly is configured to convert rotational movement of the motor into linear movement of the output end of the transmission assembly in the longitudinal direction.

[0015] The transmission assembly comprises a transmission rod, at least one transmission gear, and at least one rack. The transmission rod extends in the lateral direction and is rotationally arranged on the movable frame in the lateral direction. The transmission gear is synchronously connected to the transmission rod. The rack extends in the longitudinal direction and is arranged on the bracket. The transmission gear and the rack correspondingly engage with each other. The motor is rotationally drivingly connected to the transmission rod, so that the transmission rod drives the transmission gear to rotate and reciprocally engage with the rack, thereby driving the bracket to reciprocally move in the longitudinal direction relative to the movable frame along with the rack.

[0016] The movable frame is provided with a positioning roller, which abuts against the other side of the rack and the transmission gear. The positioning roller is capable of rolling with the rack moving longitudinally.

[0017] In an exemplary embodiment, the reciprocating conveying device further comprises a longitudinal guide device arranged on one of the movable frame and the carriage, the longitudinal guide device being configured to vertically and horizontally position the carriage relative to the movable frame;

[0018] The longitudinal guide device comprises a plurality of third rollers arranged on the movable frame, the third rollers being longitudinally spaced apart, the rotational axes of the third rollers extending horizontally, and the rolling surfaces of the third rollers being capable of abutting the bottom surface of the carriage or the top and bottom surfaces of the carriage;

[0019] The longitudinal guide device comprises a plurality of fourth roller sets arranged on the movable frame, the fourth roller sets being longitudinally spaced apart, each of the fourth roller sets comprising two fourth rollers abutting two laterally spaced apart side walls of the carriage, the rotational axes of the fourth rollers extending vertically.

[0020] In an exemplary embodiment, the storage rack comprises a plurality of planar placement frames and a plurality of V-shaped placement frames, the top surface of each of the planar placement frames being planar, the top surface of each of the planar placement frames forming a portion of the storage stations, each of the V-shaped placement frames having a V-shaped groove with an opening facing upward, and each of the V-shaped placement frames forming one of the storage stations on the V-shaped groove, wherein the corner post placed on the V-shaped groove has the opening facing upward.

[0021] In an exemplary embodiment, the material preparation device is further provided upstream of the storage rack, and comprises a first material preparation trolley, a second material preparation trolley, a horizontal guide rail, and a longitudinal guide rail, the horizontal guide rail extending horizontally, the longitudinal guide rail extending longitudinally and being arranged between the horizontal guide rail and the loading side of the storage rack, the first material preparation trolley being configured to transport the stacked corner posts on the horizontal guide rail, the second material preparation trolley being configured to transport the stacked corner posts on the longitudinal guide rail, the first material preparation trolley being configured to move horizontally along the horizontal guide rail to a position of the longitudinal guide rail, and then transfer the stacked corner posts to the second material preparation trolley, and the second material preparation trolley being configured to move longitudinally along the longitudinal guide rail to the loading side of the storage rack.

[0022] In an exemplary embodiment, the material preparation device is further provided upstream of the storage rack, and comprises a first material preparation trolley, a second material preparation trolley, a horizontal guide rail, and a longitudinal guide rail, the horizontal guide rail extending horizontally, the longitudinal guide rail extending longitudinally and being arranged between the horizontal guide rail and the loading side of the storage rack, the first material preparation trolley being configured to transport the stacked corner posts on the horizontal guide rail, the second material preparation trolley being configured to transport the stacked corner posts on the longitudinal guide rail, the first material preparation trolley being configured to move horizontally along the horizontal guide rail to a position of the longitudinal guide rail, and then transfer the stacked corner posts to the second material preparation trolley, and the second material preparation trolley being configured to move longitudinally along the longitudinal guide rail to the loading side of the storage rack.

[0023] The angle column feeding device is configured to feed the angle column to the storage work station on the feeding side of the storage rack;

[0024] The angle column corner fitting point welding device has a corner fitting work station for placing the corner fitting, the corner fitting feeding device is configured to feed the corner fitting to the corner fitting work station, and the angle column corner fitting point welding device is configured to position and point weld the corner fitting of the storage work station on the storage rack and the corner fitting on the corner fitting work station;

[0025] The angle column corner fitting fixed welding device is configured to fixedly weld the angle column corner fitting after point welding on the storage work station on the storage rack;

[0026] The angle column reinforcing bar welding device is configured to feed and weld the reinforcing bar to the angle column after fixed welding on the storage work station on the storage rack.

[0027] In an exemplary embodiment, the angle column corner fitting fixed welding device includes an inner face welding work station and an outer face welding work station; the inner face welding work station and the outer face welding work station are both operationally matched with the position of at least one storage work station on the storage rack;

[0028] The inner face welding work station is configured to perform inner face welding between the inner side of the angle column placed on the storage work station on the storage rack and the corner fitting;

[0029] The outer face welding work station is configured to lift the angle column on the storage work station on the storage rack, clamp the lifted angle column, and then rotate the storage rack at the axial ends of the clamped angle column to perform outer face welding between the outer side of the angle column and the corner fitting.

[0030] In an exemplary embodiment, the angle column corner fitting fixed welding device includes an inner face welding work station and an outer face welding work station; the inner face welding work station and the outer face welding work station are both operationally matched with the position of at least one storage work station on the storage rack;

[0031] A tensile test bench and a product batching bench are arranged downstream of the storage rack, the tensile test bench is configured to detect the tensile force of the angle column corner fitting workpiece output from the discharge side of the storage rack, and the product batching bench is used to stack the products after the tensile force detection is completed.

[0032] In an exemplary embodiment, the rack further comprises a gantry, which is arranged across above the reciprocating conveying device and the storage rack; a plurality of welding robots are arranged in longitudinal intervals on the bottom surface of the gantry, and one welding robot is arranged corresponding to at least one storage station of the storage rack for welding the corner post in the storage station.

[0033] The embodiments of the present application provide at least the following beneficial effects:

[0034] In the container corner post welding production line disclosed in the present application, the corner posts are always placed in a transverse direction during the conveying process from upstream to downstream in the longitudinal direction, which facilitates the transfer of a plurality of corner posts between different storage stations of the storage rack by the reciprocating conveying device, and further realizes the continuous conveying of the corner posts. The reciprocating conveying device of the present application can continuously and accurately and stably convey a plurality of corner posts on the storage rack in sequence, which facilitates the effective positioning of corner posts in different working conditions under corresponding processing equipment, ensures the production efficiency and production quality, controls the running rhythm of the production line, maintains a stable production rhythm, greatly improves the production efficiency, and meets the capacity demand.

[0035] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0037] Figure 1 Part of the schematic diagram of the container corner post welding production line provided by an embodiment of the present application, which includes a rack and a reciprocating conveying device.

[0038] Figure 2 Top view of the rack and the reciprocating conveying device provided by an embodiment of the present application.

[0039] Figure 3 For Figure 1 Local enlarged view of area A.

[0040] Figure 4 For Figure 2 Local enlarged view of the first roller, the second roller and the fourth roller.

[0041] Figure 5 Front view of the container corner post welding production line provided by an embodiment of the present application.

[0042] Figure 6 Structural diagram of the container corner post welding production line provided by an embodiment of the present application.

[0043] Figure 7 For Figure 6 The structure of the corner piece feeding device and the corner column corner piece spot welding device in the B area is enlarged.

[0044] Figure 8 For Figure 6 The structure of the corner column corner piece spot welding device in the C area is enlarged.

[0045] The reference signs are as follows: 1-corner column, 2-corner piece, 3-rack, 31-storage rack, 311-storage station, 312-flat placement rack, 313-V-shaped placement rack, 314-equipment placement rack, 32-conveying chassis, 33-gantry, 4-reciprocating conveying device, 41-carriage, 411-positioning groove, 42-vertical driving member, 43-moving frame, 431-longitudinal beam, 432-cross beam, 433-vertical beam, 44-lifting guide device, 441-first roller, 442-second roller, 463-positioning roller, 51-first spare material trolley, 52-transverse guide rail, 53-second spare material trolley, 54-longitudinal guide rail, 55-third spare material trolley, 61-corner column feeding device, 611-corner column feeding robot, 612-corner column ingredient table, 62-corner piece feeding device, 621-corner piece unstacking robot, 622-corner piece ingredient table, 623-corner piece feeding robot, 624-first welding robot, 7-corner column corner piece spot welding device, 71-corner column positioning assembly, 72-corner piece positioning assembly, 73-transverse positioning structure, 8-corner column corner piece spot welding device, 81-inner surface welding station, 811-second welding robot, 82-outer surface welding station, 821-lifting structure, 822-transverse moving structure, 823-clamping structure, 824-flipping structure, 825-third welding robot, 9-corner column reinforcing bar welding device, 91-reinforcing bar feeding device, 911-vibrating screen, 912-reinforcing bar clamping robot, 92-fourth welding robot, 101-assistant work frame, 1011-frame body, 1012-conveying roller, 102-tension test table, 1021-corner piece limiting bump, 1022-pulling structure, 103-product grabbing robot, 104-product ingredient table. DETAILED DESCRIPTION

[0046] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these example implementations are provided so that this disclosure will be thorough and complete, and will fully convey the inventive aspects to those skilled in the art.

[0047] In the description of the utility model, all the connection relations mentioned, not single component directly connected, but can be according to the specific implementation, by adding or reducing connecting auxiliary spare, to form more optimal connection structure. The various technical features in the utility model can be combined interactively without mutual contradiction and conflict.

[0048] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation and connection should be understood broadly, and the skilled person in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0049] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, structure and operation, so it cannot be understood as a limitation on the utility model.

[0050] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are not included in the number, and above, below, etc. are included in the number.

[0051] The application provides a kind of container corner post welding production line, by the operation form of production line conveying, transversely extended corner post 1 is conveyed and is welded with other parts under corresponding station, reduce the labor intensity of operator, improve production efficiency.

[0052] Wherein, the corner post 1, corner piece 2 and pull bar of the application are used for container assembly, in the welding of corner post 1 and corner piece 2, two corner pieces 2 need to be welded at the transverse ends of corner post 1.Corner post 1 has two vertical and adjacent side faces, and the pull bar is strip-shaped, in the assembly of corner post 1 and pull bar, the axial ends of pull bar are welded on the inner walls of the two side faces of corner post 1 respectively, i.e. the pull bar is inclined. For the convenience of description, the direction of upstream to downstream of production line is defined as longitudinal direction, and the direction horizontal and perpendicular to longitudinal direction is defined as transverse direction, in the application, corner post 1 is conveyed in the way of transversely extending in length direction.

[0053] Figure 6 Part of the schematic diagram of container corner post welding production line is shown, which includes rack 3 and reciprocating conveying device 4.

[0054] The container corner post welding production line of the present application comprises a rack 3 and a reciprocating conveying device 4. The rack 3 is provided with a storage rack 31, and the top of the storage rack 31 is used to support the corner posts 1 extending in the length direction along the transverse direction. The storage rack 31 comprises a plurality of storage stations 311 spaced apart in the longitudinal direction from upstream to downstream, and different storage stations 311 on the storage rack 31 are used to place corner posts 1 in different working conditions.

[0055] In the embodiment, the storage stations 311 on the storage rack 31 specifically refer to the positions of the storage rack 31 for placing the corner posts 1, one storage station 311 corresponds to one corner post 1, different storage stations 311 can be used to place corner posts 1 in different working conditions, and can correspond to different positions of production equipment, and different production equipment can perform working operations on the corner posts 1 in the corresponding working conditions on the storage rack 31.

[0056] The reciprocating conveying device 4 comprises a bracket 41 provided on the rack 3, the bracket 41 extends in the longitudinal direction, and the bracket 41 is spaced apart from the storage rack 31 along the transverse direction. The top surface of the bracket 41 is provided with a plurality of open upward positioning grooves 411 spaced apart in the longitudinal direction from upstream to downstream, and the positioning grooves 411 are used to accommodate the corner posts 1.

[0057] The spacing between two adjacent positioning grooves 411 matches the spacing between two adjacent storage stations 311. The bracket 41 can move up and down and move longitudinally relative to the storage rack 31. Among them: the bracket 41 can move longitudinally to make a certain positioning groove 411 located below the corner post 1 on a storage station 311 of the storage rack 31, the bracket 41 can be raised to support the corner post 1 and make the corner post 1 separate from the storage rack 31, and then the bracket 41 can move longitudinally to drive the corner post 1 to move to the next storage station 311 of the storage rack 31 and then be lowered to make the corner post 1 be transferred to the storage rack 31.

[0058] By matching the spacing distance of the plurality of storage stations 311 on the storage rack 31 with the spacing distance of the plurality of positioning grooves 411 on the bracket 41, the plurality of positioning grooves 411 can enter the one-to-one upward and downward relative positions of the plurality of storage stations 311. When the bracket 41 is raised relative to the storage rack 31, the plurality of positioning grooves 411 located below the storage station 311 can simultaneously support all the corner posts 1 on the storage rack 31, and when the bracket 41 is lowered relative to the storage rack 31, the plurality of positioning grooves 411 on the bracket 41 can also simultaneously transfer all the corner posts 1 on the bracket 41 back to the plurality of storage stations 311 on the storage rack 31.

[0059] And the bracket 41 can also move longitudinally relative to the storage rack 31, so that the positioning groove 411 on the bracket 41 can reciprocate longitudinally between positions directly opposite the two different storage stations 311, and the bracket 41 can move relative to the storage rack 31 and move in reverse, thereby transferring the corner post 1 on the upstream storage station 311 on the storage rack 31 to the downstream storage station 311.

[0060] The corner post 1 is always in a transversely placed form during longitudinal conveying from upstream to downstream, facilitating the transfer of multiple corner posts 1 between different storage stations 311 on the storage rack 31 by the reciprocating conveying device 4, thereby realizing continuous conveying of the corner post 1. The reciprocating conveying device 4 of the present application can continuously and accurately and stably convey multiple corner posts 1 on the storage rack 31, facilitating the effective positioning of corner posts 1 in different working conditions under corresponding processing equipment, ensuring production efficiency and production quality, and enabling the conveying speed of the reciprocating conveying device 4 to be controlled, thereby controlling the running speed of the container corner post 1 welding production line. Multiple corner posts on the storage rack 31 can be synchronously conveyed, so that the production line has a stable production rhythm, greatly improving production efficiency and meeting capacity demand.

[0061] Figure 1 A top view of the rack 3 and the reciprocating conveying device 4 is shown, wherein the storage rack 31 includes a planar placement rack 312, a V-shaped placement rack 313, and a device placement rack 314. Figure 2 A partial enlarged view of the rack 3 and the reciprocating conveying device 4 is shown. Figure 3 A partial enlarged view of Figure 4 is shown.

[0062] Referring to Figure 2 , Figure 1 , Figure 2 and Figure 3 , the rack 3 of the present application includes a storage rack 31 capable of placing multiple transversely extending corner posts 1 spaced longitudinally from upstream to downstream. Different corner posts 1 are placed on different storage stations 311 on the storage rack 31.

[0063] In this embodiment, the storage rack 31 includes a planar placement rack 312 and multiple V-shaped placement racks 313.

[0064] The top surface of the planar placing rack 312 is planar, and the top surface of the planar placing rack 312 forms a part of the storage station 311. The planar placing rack 312 can form one or more than two storage stations 311 for placing one or more than two corner columns 1. The corner piece 2 placed on the planar placing rack 312 is in contact with the top surface of the planar placing rack 312 by the bottom surface. Specifically, the planar placing rack 312 can be provided with one or more than two placing beams arranged in the transverse direction. The top surface of the placing beam extends in the longitudinal direction, and the two placing beams can support the transverse sides of the corner column 1, respectively. The two placing beams can form one or more than two storage stations 311.

[0065] The V-shaped placing rack 313 has a V-shaped groove with an opening facing upward. Specifically, the V-shaped groove extends in the transverse direction or is transversely through, so that the corner column 1 can be placed in the V-shaped groove. The V-shaped placing rack 313 can include two V-shaped material supporting racks arranged in the transverse direction, and the two V-shaped material supporting racks can support the transverse sides of the corner column 1, respectively. The V-shaped groove on the V-shaped placing rack 313 forms a storage station 311, which can be used to place a corner column 1. The corner column 1 placed on the V-shaped placing rack 313 is in contact with the two inner side walls of the V-shaped groove by the two adjacent vertical outer side surfaces, so that the corner column 1 placed in the V-shaped groove has an opening facing upward. This facilitates the welding of the inner edge of the corner column 1.

[0066] The storage rack 31 further includes a plurality of equipment placing racks 314. The equipment placing rack 314 forms a storage station 311, which can store a corner column 1. Part of the processing equipment can also be arranged on the equipment placing rack 314. The processing equipment can process the corner column 1 on the equipment placing rack 314. Specifically, the equipment placing rack 314 can include two workbenches arranged in the transverse direction. The two workbenches form storage stations 311 for placing corner columns 1. The equipment placing rack 314 can correspond to the corner column feeding device 61, the corner column corner piece spot welding device 7, the corner column corner piece fixing welding device 8, and the corner column reinforcing bar welding device 9, respectively. In fact, the planar placing rack 312, the V-shaped placing rack 313, and the equipment placing rack 314 can be separately arranged or integrally arranged. The positions of the three are kept relative to each other.

[0067] The rack 3 of the present application further includes a conveying chassis 32. The reciprocating conveying device 4 of the present application includes a carrier 41 arranged on the conveying chassis 32 and capable of ascending and descending and moving longitudinally relative to the conveying chassis 32. It should be noted that the positions of the conveying chassis 32 and the storage rack 31 are fixed relative to each other. In fact, the conveying chassis 32 and the storage rack 31 can be separately arranged or integrally arranged.

[0068] The lifting movement and longitudinal reciprocating movement of the bracket 41 can be achieved by one or more combinations of the following modes: screw transmission structure, hydraulic drive, gear rack 4523 transmission, chain wheel and chain transmission, and electric linear drive.

[0069] The two brackets 41 of the embodiment are spaced apart in the transverse direction, and the positioning grooves 411 on the two brackets 41 correspond to each other in the transverse direction. The two corresponding positioning grooves 411 can accommodate the two sides of the angle column 1 in the transverse direction. In fact, the positioning groove 411 can be a groove structure formed on the bracket 41, or a groove block provided on the bracket 41. At the same time, the longitudinal width of the positioning groove 411 matches the longitudinal dimension of the angle column 1, so as to limit the position of the angle column 1 during the transfer of the angle column 1 by the bracket 41, thereby achieving the positioning effect. Further, the opening of the positioning groove 411 gradually expands upward in the longitudinal direction, so as to facilitate the positioning groove 411 to smoothly hold the corresponding angle column 1 on the storage rack 31, thereby improving the fault tolerance.

[0070] The bracket 41 is spaced apart from the storage rack 31 in the transverse direction, so as to avoid interference between the bracket 41 and the storage rack 31 during the lifting movement of the bracket 41, thereby facilitating the smooth transfer of the angle column 1 between the bracket 41 and the storage rack 31.

[0071] In the embodiment, the storage rack 31 is located outside the bracket 41, that is, the storage rack 31 is located closer to the end of the angle column 1 relative to the positioning groove 411 of the bracket 41, so as to facilitate the movement control of the bracket 41. In addition, the bracket 41 can also be located outside the storage rack 31, or the bracket 41 and the storage rack 31 can be staggered.

[0072] The reciprocating conveying device 4 of the embodiment further comprises a vertical driving member 42 and a movable frame 43.

[0073] The vertical driving member 42 is arranged on the conveying chassis 32, and the vertical driving member 42 drives the movable frame 43 to move up and down relative to the conveying chassis 32. The bracket 41 is arranged on the movable frame 43.

[0074] In the embodiment, the vertical driving member 42 is a lifting oil cylinder, and the telescopic end of the lifting oil cylinder is rotatably connected to the movable frame 43 through a universal joint, so as to avoid damage to the lifting oil cylinder.

[0075] Further, in order to improve the lifting stability of the movable frame 43 relative to the conveying chassis 32, the reciprocating conveying device 4 comprises a lifting guide device 44, which is arranged on one of the movable frame 43 and the conveying chassis 32. The lifting guide device 44 is configured to position the movable frame 43 relative to the conveying chassis 32 in the longitudinal direction and the transverse direction.

[0076] The longitudinal positioning and the transverse positioning of the movable frame 43 relative to the conveying base frame 32 can be achieved by one or more of linear guide sliding blocks, limiting clamps, guide rollers, etc.

[0077] In this embodiment, the movable frame 43 has a frame structure. Specifically, the movable frame 43 includes two longitudinal beams 431 arranged in the transverse direction and two transverse beams 432 arranged in the longitudinal direction, and the two longitudinal beams 431 and the two transverse beams 432 form the frame structure of the movable frame 43. In addition, in order to improve the structural strength of the movable frame 43, a plurality of reinforcing beams are connected between the two longitudinal beams 431.

[0078] The lifting guide device 44 of this embodiment is arranged on the conveying base frame 32.

[0079] The lifting guide device 44 includes a plurality of first rollers 441 arranged on the conveying base frame 32.

[0080] The plurality of first rollers 441 are arranged in the longitudinal direction, and the rolling surfaces of the plurality of first rollers 441 can respectively abut the two sides of the frame structure in the transverse direction, so that the movable frame 43 can move up and down relative to the conveying base frame 32, and the plurality of first rollers 441 can roll along the frame structure and limit the transverse movement of the frame structure.

[0081] The lifting guide device 44 includes two rows of first roller groups arranged on the conveying base frame 32, and the two rows of first roller groups are arranged in the transverse direction. Each row of first roller groups includes a plurality of first roller groups arranged in the longitudinal direction, and each first roller group includes at least two first rollers 441 arranged in the vertical direction. The rotation axis of the first roller 441 extends in the longitudinal direction, and the rolling surfaces of the first rollers 441 of the two rows of first roller groups can respectively abut the opposite two side walls of the two longitudinal beams 431. In fact, the first rollers 441 of the two rows of first roller groups can also abut the two side walls of the two longitudinal beams 431. The arrangement of the first rollers 441 can limit the transverse movement of the movable frame 43, achieve transverse positioning of the movable frame 43, reduce the sliding friction of the movable frame 43, and the rotation axis of the first roller 441 extends in the longitudinal direction, so that the first roller 441 can guide the lifting movement of the movable frame 43.

[0082] The lifting guide device 44 includes a plurality of second rollers 442 arranged on the conveying base frame 32.

[0083] The rolling surfaces of the plurality of second rollers 442 can respectively abut the two sides of the frame structure in the longitudinal direction, so that the movable frame 43 can move up and down relative to the conveying base frame 32, and the plurality of second rollers 442 can roll along the frame structure and limit the longitudinal movement of the frame structure.

[0084] Specifically, the lifting guide device 44 comprises two rows of second roller sets arranged on the rack 3, the two rows of second roller sets are arranged in longitudinal direction, each row of second roller sets comprises at least one second roller set, the second roller set comprises second rollers 442 arranged in vertical direction, the rotation axis of the second rollers 442 extends in horizontal direction, and the rolling surfaces of the second rollers 442 of the two rows of second roller sets can respectively abut against the opposite two side walls of the two cross beams 432. In addition, the second rollers 442 of the two rows of second roller sets can also respectively abut against the opposite two side walls of the two cross beams 432.

[0085] The arrangement of the second rollers 442 can limit the movement of the movable frame 43 in longitudinal direction, realize the longitudinal positioning of the movable frame 43, and reduce the sliding friction of the movable frame 43. In addition, the rotation axis of the second rollers 442 extends in horizontal direction, so that the second rollers 442 can guide the lifting movement of the movable frame 43.

[0086] The movable frame 43 is horizontally and longitudinally positioned by the first rollers 441 and the second rollers 442, so that the vibration generated during the movement of the movable frame 43 can be absorbed and reduced. In addition, the movable frame 43 is guided by the rollers, so that the movable frame 43 can adapt to the curve or angle change between the movable frame 43 and the conveying base frame 32, the flexibility is higher, and the service life of the lifting guide device 44 is improved. In the embodiment, vertical beams 433 extending in vertical direction are arranged on the movable frame 43 corresponding to the positions of the first rollers 441 and the second rollers 442, so that the first rollers 441 and the second rollers 442 can always abut against the movable frame 43.

[0087] In addition, the lifting guide device 44 can also be arranged on the movable frame 43, specifically, the first rollers 441 and the second rollers 442 are arranged on the movable frame 43, and the rolling surfaces of the first rollers 441 and the second rollers 442 abut against the conveying base frame 32.

[0088] Further, the reciprocating conveying device 4 comprises a longitudinal driving member 45, the longitudinal driving member 45 is arranged on the movable frame 43, the bracket 41 is longitudinally and slidably connected to the movable frame 43, and the longitudinal driving member 45 is drivingly connected to the bracket 41, so that the longitudinal driving member 45 drives the bracket 41 to move longitudinally relative to the movable frame 43.

[0089] The bracket 41 can longitudinally slide relative to the movable frame 43, so that the longitudinal movement stability of the bracket 41 is improved.

[0090] In this embodiment, the longitudinal driving member 45 comprises a motor 451 and a transmission assembly 452, the motor 451 is arranged on the movable frame 43, the motor 451 rotationally drives an input end of the transmission assembly 452, an output end of the transmission assembly 452 is connected to the bracket 41, and the transmission assembly 452 is used to convert the rotational movement of the motor 451 into the linear movement of the output end of the transmission assembly 452 in the longitudinal direction. The longitudinal driving member 45 can use the servo motor 451 to realize the longitudinal driving of the bracket 41, improve the longitudinal displacement precision of the bracket 41 relative to the movable frame 43, so that the bracket 41 can accurately move to the position corresponding to the positioning groove 411 on the bracket 41 and the storage station 311 on the storage rack 31 in the longitudinal direction, and ensure that the corner column 1 can be converted between the positioning groove 411 and the storage station 311.

[0091] Further, the transmission assembly 452 comprises a transmission rod 4521, at least one transmission gear 4522 and at least one rack 4523.

[0092] The length direction of the transmission rod 4521 extends in the transverse direction and is arranged on the movable frame 43 in the transverse direction. The transmission gear 4522 is synchronously connected with the transmission rod 4521. That is, the rotation axes of the transmission rod 4521 and the transmission gear 4522 both extend in the transverse direction. The length direction of the rack 4523 extends in the longitudinal direction and is arranged on the bracket 41, and the transmission gear 4522 and the rack 4523 are in one-to-one correspondence and meshing.

[0093] The motor 451 rotationally drives the transmission rod 4521 to drive the transmission gear 4522 to rotate and reciprocatingly mesh with the rack 4523, thereby driving the bracket 41 to reciprocatingly move along the longitudinal direction relative to the movable frame 43 along with the rack 4523. The longitudinal movement between the bracket 41 and the movable frame 43 in the application adopts the mode that the servo motor 451 drives the gear and rack 4523 to transmit, so as to realize the high position precision of the bracket 41 in the longitudinal movement process, ensure the accurate control of the walking distance of the bracket 41 and the flexible adjustment of the speed, and effectively meet the precise positioning requirements required by the production line welding.

[0094] Specifically, the two brackets 41 are each provided with a rack 4523, the motor 451 and the transmission rod 4521 are arranged between the two longitudinal beams 431 of the movable frame 43, the motor 451 is rotationally connected to the middle part of the transmission rod 4521, and the two ends of the transmission rod 4521 extend towards the two longitudinal beams 431 respectively. The transmission rod 4521 is rotationally connected to the movable frame 43 through a plurality of interval arranged bearings, so as to reduce the shaking and deformation of the transmission rod 4521 and improve the transmission stability of the transmission rod 4521. The two transmission gears 4522 are arranged at the axial two ends of the transmission rod 4521 respectively and mesh with the two racks 4523 respectively, so as to realize the simultaneous driving of the two brackets 41 relative to the movable frame 43 in the longitudinal direction.

[0095] Further, in order to improve the stability of the longitudinal movement of the support rod relative to the movable frame 43, the reciprocating conveying device 4 further comprises a longitudinal guide device 46, which is arranged on one of the movable frame 43 and the support rod 41 and is configured to vertically and horizontally position the support rod 41 relative to the movable frame 43.

[0096] The vertical and horizontal positioning of the support rod 41 relative to the movable frame 43 can be achieved by one or more of linear guide rails, limiting clamps, guide rollers, etc.

[0097] The longitudinal guide device 46 of the present embodiment is arranged on the movable frame 43.

[0098] The longitudinal guide device 46 comprises a plurality of third rollers 461 arranged on the movable frame 43.

[0099] The plurality of third rollers 461 are arranged on the movable frame 43 in longitudinal intervals, the rotation axes of the third rollers 461 extend in the horizontal direction, and the rolling surfaces of the third rollers 461 can abut the bottom surface of the support rod 41 or the top and bottom surfaces of the support rod 41.

[0100] Specifically, at least part of the third rollers 461 can be arranged between the longitudinal beams 431 of the support rod 41 and the movable frame 43, i.e., the support rod 41 can be pressed on the top of the third rollers 461, so that the third rollers 461 can abut the bottom surface of the support rod 41, achieving the relative sliding of the support rod 41 and the movable frame 43 and improving the stability of the longitudinal movement of the support rod 41.

[0101] In addition, in the present embodiment, at least another third roller 461 is pressed on the top surface of the support rod 41, thereby limiting the jumping of the support rod 41 during the conveying process, and the two types of third rollers 461 can limit the vertical displacement of the support rod 41, thereby achieving the vertical positioning of the support rod 41.

[0102] Specifically, the movable frame 43 is provided with a positioning roller 463, which abuts the other side surface of the rack 4523 and the transmission gear 4522, and the positioning roller 463 can roll with the longitudinal movement of the rack 4523. In fact, the third rollers 461 include the positioning roller 463, which can prevent the jumping of the support rod 41 under longitudinal displacement and maintain the engagement of the rack 4523 and the transmission gear 4522.

[0103] The longitudinal guide device 46 comprises a plurality of fourth rollers 462 arranged on the movable frame 43.

[0104] Specifically, the longitudinal guide device 46 comprises a plurality of fourth roller sets arranged on the movable frame 43, the plurality of fourth roller sets are arranged along the longitudinal direction, and each fourth roller set comprises two fourth rollers 462 abuttingly arranged on two side walls of the bracket 41 along the transverse direction, and the rotation axes of the fourth rollers 462 extend along the vertical direction. Each bracket 41 is abuttingly arranged with a plurality of fourth rollers 462 on both sides in the transverse direction, and the fourth rollers 462 on both sides can limit the transverse displacement of the bracket 41, thereby achieving the transverse positioning of the bracket 41.

[0105] The bracket 41 is transversely and longitudinally positioned relative to the movable frame 43 by the plurality of third rollers 461 and the plurality of fourth rollers 462, which not only can absorb and reduce the vibration generated by the bracket 41 during movement, but also can guide the bracket 41 and reduce the movement friction. In addition, the bracket 41 adopts roller guiding, which can adapt to the existence of a certain curve or angle change between the bracket 41 and the movable frame 43, has higher flexibility, and improves the service life of the longitudinal guide device 46.

[0106] In addition, in some other embodiments, the longitudinal guide device 46 can be arranged on the bracket 41, and specifically, the third rollers 461 and the fourth rollers 462 can be arranged on the bracket 41 respectively, and the rolling surfaces of the third rollers 461 and the fourth rollers 462 are in abutting contact with the movable frame 43 respectively.

[0107] Figure 4 A front view of the container corner post welding production line is shown.

[0108] The container corner post welding production line of the present application further comprises a material preparation device. The material preparation device is located upstream of the storage rack 31.

[0109] Specifically, the material preparation device comprises a first material preparation trolley 51, a second material preparation trolley 53, a transverse guide rail 52, and a longitudinal guide rail 54. The transverse guide rail 52 extends along the transverse direction, the longitudinal guide rail 54 extends along the longitudinal direction and is arranged between the transverse guide rail 52 and the loading side of the storage rack 31. The first material preparation trolley 51 is used for transporting the stacked corner posts 1 on the transverse guide rail 52, and the second material preparation trolley 53 is used for transporting the stacked corner posts 1 on the longitudinal guide rail 54. The first material preparation trolley 51 is configured to move to the position of the longitudinal guide rail 54 along the transverse guide rail 52, and then transfer the stacked corner posts 1 to the second material preparation trolley 53. The second material preparation trolley 53 is configured to move to the loading side of the storage rack 31 along the longitudinal guide rail 54 along the longitudinal direction. The incoming corner posts 1 can be transported by the first material preparation trolley 51 and the second material preparation trolley 53, which avoids the safety risks caused by the use of cranes and forklifts, realizes the automatic transportation of the corner posts 1, and improves the transportation efficiency of the corner posts 1.

[0110] The first material preparation trolley 51 of the embodiment is a two-in-one RGV trolley, and the design purpose is to dock with the corner piece RGV trolley and the corner column RGV trolley of the part feeding area and the part discharging area, and can simultaneously load 2 stacks of corner columns 1 (50 pieces per stack) or 4 stacks of corner pieces 2 (100 pieces per stack), and has strong transportation capacity. The first material preparation trolley 51 is provided with a power conveying roller. The power conveying roller of the embodiment can select a steel roller with a diameter of , matched with a 2.2kw speed reducer 451 and a chain wheel and chain transmission mechanism, which can realize a conveying speed of 0.3m / s, and the maximum bearing weight of the power conveying roller is 3 tons, thereby improving the conveying efficiency of the corner column 1.

[0111] The transverse guide rail 52 of the embodiment is a walking steel rail with a specification of 15kg. The first material preparation trolley 51 drives the wheels by a 4kw speed reducer 451 and chain wheel and chain to travel at a speed of 0.4m / s, and the bearing capacity is as high as 6 tons.

[0112] The second material preparation trolley 53 of the embodiment is a corner column RGV trolley, and the design purpose is to dock with the two-in-one RGV trolley, and can load 1 stack of corner columns 1 (50 pieces per stack) at a time, and has strong transportation capacity. The second material preparation trolley 53 is provided with a power conveying roller. The power conveying roller of the embodiment selects a steel roller with a diameter of , matched with a 2.2kw speed reducer 451 and a chain wheel and chain transmission mechanism, which can realize a conveying speed of 0.3m / s, and the maximum bearing weight of the power conveying roller is 3 tons, thereby improving the conveying efficiency of the corner column 1.

[0113] The longitudinal guide rail 54 configured on the second material preparation trolley 53 is a walking steel rail with a specification of 15kg. The second material preparation trolley 53 drives the wheels by a 2.2kw speed reducer 451 and chain wheel and chain to travel at a speed of 0.4m / s, and the bearing capacity is as high as 3 tons.

[0114] In the embodiment, the material preparation device further includes a third material preparation trolley 55. The third material preparation trolley 55 is a corner piece RGV trolley for conveying corner pieces 2, and the design purpose is to dock with the two-in-one RGV trolley. The longitudinal guide rail 54 is provided with at least four pairs. Two pairs of longitudinal guide rails 54 cooperate with the second material preparation trolley 53, and two pairs of longitudinal guide rails 54 cooperate with the third material preparation trolley 55. In the embodiment, two third material preparation trolleys 55 are separately arranged on the transverse sides of the two second material preparation trolleys 53, which facilitates the feeding of the corner pieces 2 and the corner columns 1.

[0115] In order to reduce the space occupation, the rack 3 of the application further includes a gantry 33, which is transversely arranged above the reciprocating conveying device 4 and the material storage rack 31. A plurality of welding robots are vertically arranged on the bottom surface of the gantry 33. At least one welding robot is arranged corresponding to at least one material storage station 311 of the material storage rack 31, and is used for welding the corner column 1 on the material storage station 311.

[0116] The welding robot corresponding to the storage station 311 can be provided in two along the transverse direction, and can simultaneously weld the two ends of the corner post 1 and the two corner pieces 2.

[0117] All welding robots are designed to be installed upside down on the bottom surface of the gantry 33. This layout not only optimizes the utilization of ground space, but also forms an installation platform on the top surface of the gantry 33, which facilitates the centralized arrangement of key equipment such as the electrical control cabinet, the robot control cabinet, the welding machine, and the welding wire drum on the installation platform. Another significant advantage of the upside-down installation method is that once the robot system encounters an abnormality, maintenance personnel can quickly intervene, effectively reducing the risk of production line interruption and ensuring the smooth continuation of the production process.

[0118] Figure 5 A structural diagram of the container corner post welding production line is shown. Figure 6 An enlarged structural diagram of the corner piece feeding device 62 and the corner post corner piece spot welding device 7 is shown. Figure 7 An enlarged structural diagram of the corner post corner piece spot welding device 7 is shown. Figure 6 An enlarged structural diagram of the corner post corner piece spot welding device 7 is shown. Figure 8 An enlarged structural diagram of the corner post corner piece spot welding device 7 is shown.

[0119] Further, the container corner post welding production line further includes a corner post feeding device 61, a corner piece feeding device 62, a corner post corner piece spot welding device 7, a corner post corner piece fixed welding device 8, and a corner post reinforcement welding device 9 arranged in sequence from upstream to downstream along the longitudinal direction. The corner post feeding device 61, the corner piece feeding device 62, the corner post corner piece spot welding device 7, the corner post corner piece fixed welding device 8, and the corner post reinforcement welding device 9 are respectively matched with at least one storage station 311 on the storage rack 31.

[0120] The corner post feeding device 61 is configured to feed the corner post 1 to the storage station 311 on the feeding side of the storage rack 31.

[0121] Specifically, the corner post feeding device 61 includes a corner post 1 feeding table and a corner post feeding robot 611. The second spare trolley 53 can transfer the corner post 1 to the corner post 1 feeding table through the power conveying roller. The corner post feeding robot 611 has a vacuum suction cup. The corner post feeding robot 611 sucks up the corner post 1 on the corner post 1 feeding table and places it on the storage station 311 closest to the feeding side of the storage rack 31, realizing automatic feeding of the corner post 1.

[0122] The corner piece feeding device 62 is used to feed the corner piece 2 to the workbench corresponding to the corner post corner piece spot welding device 7.

[0123] Referring to Figure 6Specifically, the corner piece feeding device 62 comprises a corner piece unstacking robot 621, a corner piece dispensing table 622, and a corner piece feeding robot 623. The corner piece unstacking robot 621 is used to send the corner piece 2 on the third material preparation trolley 55 to the corner piece dispensing table 622, and specifically can complete the corner column 1 suction through an electromagnet. The corner piece dispensing table 622 is provided with a roller way extending in the longitudinal direction, the roller way has positioning baffles on the transversely opposite two sides, the width of the two sides of the positioning baffles matches the transverse width of the corner piece 2, and the longitudinal one end of the roller way is provided with a pushing cylinder, which can push the corner piece 2 on the roller way to the longitudinal other end of the roller way and stop moving. The corner piece feeding robot 623 can send the corner piece 2 at the longitudinal other end of the roller way to the workbench (device placing rack 314) corresponding to the corner column corner piece spot welding device 7.

[0124] The corner column corner piece spot welding device 7 has a corner piece station for placing the corner piece 2, and the corner piece feeding device 62 is configured to feed the corner piece 2 to the corner piece station. The corner column corner piece spot welding device 7 is configured to position and spot weld the corner piece 2 on the storage station 311 of the storage rack 31 and the corner piece 2 on the corner piece station.

[0125] Specifically, the corner column corner piece spot welding device 7 comprises a corner column positioning assembly 71, a corner piece positioning assembly 72, a transverse positioning structure 73, and a first welding robot 624. The corner column positioning assembly 71, the corner piece positioning assembly 72, and the transverse positioning structure 73 are all arranged on the corresponding device placing rack 314 of the corner column corner piece spot welding device 7. The corner column positioning assembly 71 is used to position the vertical and longitudinal directions of the corner column 1 on the corresponding storage station 311, the corner piece positioning assembly 72 is used to clamp and longitudinally position the corner piece 2, so that the corner column 1 and the corner piece 2 are automatically aligned in the longitudinal and vertical directions, and the step precision of welding is improved. The transverse positioning structure 73 can keep the total length of the corner column 1 and the two corner pieces 2 to be spot welded consistent in the transverse direction by pushing the corner piece 2, further improving the welding precision and ensuring the total length of the product to be consistent. The first welding robot 624 spot welds the positioned corner column 1 and corner piece 2.

[0126] The corner column positioning assembly 71, the corner piece positioning assembly 72, and the transverse positioning structure 73 can be realized by a cylinder or a structure in which a cylinder and a limiting block cooperate to realize the positioning of the corner column 1 and the corner piece 2 and the transverse positioning.

[0127] In this embodiment, the tool end of the corner piece feeding robot 623 is integrated with an electromagnet and a welding gun. The electromagnet is used to suction and feed the corner column 1, and the welding gun is used to spot weld the corner column 1 and the corner piece 2 after feeding and positioning. Here, the corner piece feeding robot 623 can also be regarded as the first welding robot 624 and is arranged on the bottom surface of the gantry 33.

[0128] The corner post corner fitting fixation welding device 8 is configured to perform fixation welding on the corner fitting 2 of the corner post 1 after spot welding at the storage station 311 on the storage rack 31. The corner post corner fitting fixation welding device 8 is arranged downstream of the corner post corner fitting spot welding device 7, so that the corner post corner fitting fixation welding device 8 corresponds to the storage station 311 on the storage rack 31 and is also downstream of the storage station 311 corresponding to the corner post corner fitting spot welding device 7.

[0129] With reference to Figure 6 The corner post corner fitting fixation welding device 8 in the embodiment includes an inner surface welding station 81 and an outer surface welding station 82. The inner surface welding station 81 and the outer surface welding station 82 are both operationally matched with the position of at least one storage station 311 on the storage rack 31. The corner post 1 enters the storage station 311 corresponding to the inner surface welding station 81 and the storage station 311 corresponding to the outer surface welding station 82 in sequence from the storage station 311 corresponding to the corner post corner fitting spot welding device 7 through the reciprocating conveying device 4.

[0130] Specifically, the inner surface welding station 81 is configured to perform inner surface welding on the inner side surface of the corner post 1 and the corner fitting 2 placed in the storage station 311 on the storage rack 31. In fact, the storage rack 31 corresponding to the inner surface welding station 81 is a V-shaped placement rack 313, and the storage station 311 is formed in the V-shaped placement rack 313. The inner surface welding station 81 includes a second welding robot 811, and the corner post 1 is placed in the V-shaped placement rack 313 so that the side opening of the corner post 1 faces upward, facilitating the second welding robot 811 to perform fixation welding on the inner side surface of the corner post 1 and the corner fitting 2. The second welding robot 811 can be arranged on the bottom surface of the gantry 33.

[0131] Specifically, the outer surface welding station 82 is configured to lift the corner post 1 located on the storage work station 311 of the storage rack 31, and clamp the lifted corner post 1, and then rotate the storage rack 31 at the axial two ends of the clamped corner post 1 to perform outer surface welding between the outer side surface of the corner post 1 and the corner piece 2. Specifically, the storage work station 311 corresponding to the outer surface welding station 82 is formed on the equipment placing rack 314 corresponding to the outer surface welding station 82, and the outer surface welding station 82 includes a lifting structure 821, a transverse movement structure 822, a clamping structure 823, a turnover structure 824, and a third welding robot 825. The lifting structure 821 is used to lift the corner post 1 on the bracket 41 to realize transfer, the turnover structure 824 is arranged on the transverse movement structure 822, the clamping structure 823 is arranged on the turnover structure 824, the transverse movement structure 822 can drive the turnover structure 824 and the clamping structure 823 to move along the transverse direction relative to the equipment placing rack 314, so that the clamping structure 823 can clamp the corner post 1 on the lifting structure 821, and then the turnover structure 824 drives the clamping structure 823 to rotate, so that the third welding robot 825 can perform fixed welding between the outer side edge of the corner post 1 in the circumferential direction and the corner piece 2. The third welding robot 825 can be arranged on the bottom surface of the gantry 33. After welding is completed, the unloading cylinder on the turnover structure 824 can unload the corner post 1 from the clamping structure 823 and deliver it back to the positioning groove 411 on the bracket 41 by the lifting structure 821. In addition, the lifting structure 821, the transverse movement structure 822, and the turnover structure 824 can realize functions through motor 451, cylinder and other driving elements, and the clamping structure 823 can realize functions through spring clamping block or cylinder clamping block and other structures.

[0132] The corner post reinforcement bar welding device 9 is configured to load and weld the reinforcement bar to the corner post 1 after fixed welding on the storage work station 311 of the storage rack 31.

[0133] Specifically, the corner post reinforcement bar welding device 9 includes a reinforcement bar loading device 91 and a fourth welding robot 92. In the embodiment, the storage rack 31 corresponding to the corner post reinforcement bar welding device 9 is a V-shaped placing rack 313, the storage work station 311 is formed on the V-shaped placing rack 313, and the corner post 1 is placed on the V-shaped placing rack 313, so that the side edge of the corner post 1 is upwardly open, facilitating the reinforcement bar loading device 91 to fix the reinforcement bar on the inner side surface of the corner post 1, and facilitating the fourth welding robot 92 to weld the inner side edge of the corner post 1 and the reinforcement bar.

[0134] In some specific embodiments, the reinforcing bar feeding device 91 comprises a vibrating screen 911, a reinforcing bar positioning seat and a reinforcing bar clamping robot 912. The vibrating screen 911 can sequentially feed the reinforcing bars to the reinforcing bar positioning seat, the reinforcing bar positioning seat can position the reinforcing bars in space, and the reinforcing bar clamping robot 912 can grab the reinforcing bars on the reinforcing bar positioning seat by the clamping jaw and position the reinforcing bars on the corner post 1 before welding. The reinforcing bar clamping robot 912 is provided with a force sensor, which can detect the abutting force between the reinforcing bar and the corner post 1 to avoid deformation of the reinforcing bar and the corner post 1 due to excessive abutting force. In addition, the fourth welding robot 92 can be arranged on the bottom surface of the gantry 33.

[0135] In the present embodiment, the corner post feeding device 61, the corner piece feeding device 62, the corner post and corner piece spot welding device 7, the corner post and corner piece fixation welding device 8 and the corner post reinforcing bar welding device 9 are each provided with at least two, which can respectively perform flow line welding operation on the corner posts 1 in different directions of the container. In addition, the corner post feeding device 61, the corner piece feeding device 62, the corner post and corner piece spot welding device 7, the corner post and corner piece fixation welding device 8 and the corner post reinforcing bar welding device 9 can also plan the number of corresponding equipment according to the required production time and the production rhythm of the production line.

[0136] Referring to Figure 7 Figure 5 , considering that the container has various complex box types, additional manual operation may be required. The container corner post welding production line further comprises a plurality of auxiliary work frames 101 arranged on at least one lateral side of the storage rack 31 and located downstream of the corner post reinforcing bar welding device 9. The auxiliary work frame 101 comprises a frame body 1011, and a plurality of conveying rollers 1012 are arranged in the frame body 1011 in a direction transversely opposite to a storage station 311. The length direction of the conveying rollers 1012 extends longitudinally. In the present embodiment, the storage rack 31 downstream of the corner post reinforcing bar welding device 9 adopts a planar placement frame 312, which is convenient for manual removal.

[0137] By arranging a plurality of auxiliary work frames 101 downstream of the corner post reinforcing bar welding device 9, the corner posts 1 transferred to the storage rack 31 by the reciprocating conveying device 4 can be transferred to the auxiliary work frames 101, and the conveying rollers 1012 of the auxiliary work frames 101 can facilitate the transfer of the corner posts 1. The workers can perform operations such as corner post 1 repair, reinforcing bar repair, plate welding, reinforcing corner piece 2 welding, special box type operation and slag removal and polishing on the auxiliary work frames 101.

[0138] Further, the container corner post welding production line further comprises a tensile test bench 102 and a product batching table 104. The tensile test bench 102 and the product batching table 104 are arranged downstream of the storage rack 31. The tensile test bench 102 is configured to detect the tensile force of the corner post 1 and corner piece 2 welding workpiece output from the discharge side of the storage rack 31, and the product batching table 104 is used to stack the products after the tensile force detection is completed.

[0139] Specifically, the tension testing table 102 is provided with an angle piece limiting protrusion 1021 and a material pulling structure 1022. The angle piece limiting protrusion 1021 is used to be clamped into the hole on the angle piece 2, thereby positioning the product position. The material pulling structure 1022 can pull one side of the product to perform the tension test.

[0140] The present application also comprises a product grabbing robot 103, which can grab the corner post 1 on the material storage station 311 at the end of the material unloading side of the material storage rack 31 and place it on the tension testing table 102. After the tension detection is completed, the product grabbing robot 103 can grab the corner post 1 on the tension testing table 102 to the product dispensing table 104 for stacking. The product grabbing robot 103 can use a vacuum suction cup to grab the corner post 1.

[0141] The process flow of the whole container corner post welding production line is as follows: the front corner post 1 / angle piece 2 is prepared by the material preparation device and transferred to the position adjacent to the rack 3. The corner post feeding robot 611 / angle piece feeding robot 623 unstacks and feeds the corner post 1 / angle piece 2 on the material preparation device to the corresponding material storage station 311 of the corner post and angle piece spot welding device 7. The corner post 1 and the angle piece 2 are positioned by the corner post and angle piece spot welding device 7, and the first welding robot 624 spot welds the corner post 1 and the angle piece 2. The spot-welded corner post 1 and angle piece 2 are conveyed by the reciprocating conveying device 4 to the corresponding material storage station 311 of the corner post 1 fixed welding device. The second welding robot 811 of the inner surface welding station 81 completes the inner surface welding of the corner post 1 and the angle piece 2, and then transfers the product to the outer surface welding station 82 and uses the third welding robot 825 to weld the rotating product. After the corner post 1 and the angle piece 2 are fixedly welded, they are conveyed by the reciprocating conveying device 4 to the corresponding material storage station 311 of the corner post reinforcing rib welding device 9. The fourth welding robot 92 welds the reinforcing rib on the inner side of the corner post 1 to complete the assembly of the corner post 1 reinforcing rib. The assembled corner post 1 product can be transferred to the auxiliary workbench 101 for manual repair, plate welding, reinforcing angle piece 2 welding, and special box type modification, etc. After the work is completed, the corner post 1 product is polished and discharged to the tension testing table 102. The product after the tension test is finally transferred by the product grabbing robot 103 to the product dispensing table 104 for stacking.

[0142] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

Claims

1. A container corner post welding production line, characterized by, The container corner post welding production line comprises: a rack provided with a storage rack, the top of the storage rack being used to support a corner post extending in the length direction along the transverse direction; the storage rack comprises a plurality of storage stations spaced apart in the longitudinal direction from upstream to downstream, and different storage stations on the storage rack are used to place corner posts in different working conditions; a reciprocating conveying device comprising a bracket provided on the rack, the bracket extending in the longitudinal direction, and the bracket being spaced apart from the storage rack in the transverse direction; the top surface of the bracket is provided with a plurality of open upward positioning grooves spaced apart in the longitudinal direction from upstream to downstream, and the positioning grooves are used to accommodate corner posts, and the spacing between two adjacent positioning grooves matches the spacing between two adjacent storage stations; the bracket can move up and down and move longitudinally relative to the storage rack; wherein: the bracket can move longitudinally to make one of the positioning grooves be below the corner post on one of the storage stations of the storage rack, the bracket can rise to support the corner post in the positioning groove and make the corner post be separated from the storage rack, and then the bracket can move longitudinally to move the corner post to the next storage station of the storage rack and then be lowered to make the corner post be transferred to the storage rack.

2. The container corner post welding production line according to claim 1, wherein: the rack comprises a conveying chassis, the reciprocating conveying device comprises a vertical driving member and a movable frame, the vertical driving member is provided on the conveying chassis, the bracket is provided on the movable frame, and the vertical driving member drives the movable frame to move up and down relative to the conveying chassis.

3. The container corner post welding production line according to claim 2, wherein: the reciprocating conveying device comprises a lifting guide device, the lifting guide device is provided on one of the movable frame and the conveying chassis, and the lifting guide device is configured to longitudinally and transversely position the movable frame relative to the conveying chassis; the movable frame surrounds a frame-shaped structure; the lifting guide device comprises a plurality of first rollers provided on the conveying chassis, the first rollers are spaced apart in the longitudinal direction, and the rolling surfaces of the first rollers can respectively abut the transverse sides of the frame-shaped structure to enable the first rollers to roll along the frame-shaped structure and limit the transverse movement of the frame-shaped structure when the movable frame moves up and down relative to the conveying chassis; the lifting guide device comprises a plurality of second rollers provided on the conveying chassis, and the rolling surfaces of the second rollers can respectively abut the longitudinal sides of the frame-shaped structure to enable the second rollers to roll along the frame-shaped structure and limit the longitudinal movement of the frame-shaped structure when the movable frame moves up and down relative to the conveying chassis.

4. The container corner post welding production line according to claim 2, wherein: The reciprocating conveying device comprises a longitudinal driving member arranged on the movable frame, and the bracket is longitudinally slidably connected to the movable frame, and the longitudinal driving member is drivingly connected to the bracket so that the longitudinal driving member drives the bracket to move longitudinally relative to the movable frame.

5. The container corner post welding production line according to claim 4, characterized in that, The longitudinal driving member comprises a motor and a transmission assembly, the motor is arranged on the movable frame, the motor rotationally drives an input end of the transmission assembly, an output end of the transmission assembly is connected to the bracket, and the transmission assembly is used for converting the rotational motion of the motor into the linear motion of the output end of the transmission assembly along the longitudinal direction; The transmission assembly comprises a transmission rod, at least one transmission gear and at least one rack, the length direction of the transmission rod extends along the transverse direction and is rotationally arranged on the movable frame, the transmission gear is synchronously connected to the transmission rod, the length direction of the rack extends along the longitudinal direction and is arranged on the bracket, the transmission gear and the rack one-to-one correspondingly engage, and the motor rotationally drives the transmission rod so that the transmission rod drives the transmission gear to rotate and reciprocally engage with the rack, thereby driving the bracket to reciprocally move along the longitudinal direction relative to the movable frame along with the rack. The movable frame is provided with a positioning roller, the positioning roller abuts on the other side of the rack and the transmission gear, and the positioning roller can roll along with the longitudinal movement of the rack.

6. The container corner post welding production line according to claim 4, characterized in that, The reciprocating conveying device further comprises a longitudinal guide device, the longitudinal guide device is arranged on one of the movable frame and the bracket, and the longitudinal guide device is configured to vertically and transversely position the bracket relative to the movable frame; The longitudinal guide device comprises a plurality of third rollers arranged on the movable frame, the third rollers are longitudinally spaced apart, the rotation axes of the third rollers extend along the transverse direction, and the rolling surfaces of the third rollers can abut the bottom surface of the bracket or the top surface and the bottom surface of the bracket; The longitudinal guide device comprises a plurality of fourth roller groups arranged on the movable frame, the fourth roller groups are longitudinally spaced apart, and each fourth roller group comprises two fourth rollers which abut the two laterally spaced apart side walls of the bracket, and the rotation axes of the fourth rollers extend along the vertical direction.

7. The container corner post welding production line according to claim 1, characterized in that, The storage rack comprises a planar placement rack and a plurality of V-shaped placement racks, the top surface of the planar placement rack is planar, the top surface of the planar placement rack forms part of the storage stations, and each V-shaped placement rack has a V-shaped groove with an opening facing upward, and one storage station is formed in each V-shaped groove, wherein the corner post placed in the V-shaped groove has an opening facing upward.

8. The container corner post welding line of claim 1, wherein, Further comprising: The material preparation device is located upstream of the storage rack and includes a first material preparation trolley, a second material preparation trolley, a transverse guide rail and a longitudinal guide rail. The transverse guide rail extends in the transverse direction, and the longitudinal guide rail extends in the longitudinal direction and is arranged between the transverse guide rail and the feeding side of the storage rack. The first material preparation trolley is used to transport the stacked corner columns on the transverse guide rail, and the second material preparation trolley is used to transport the stacked corner columns on the longitudinal guide rail. The first material preparation trolley is configured to move to the position of the longitudinal guide rail in the transverse direction of the transverse guide rail, and then transfer the stacked corner columns to the second material preparation trolley. The second material preparation trolley is configured to move to the feeding side of the storage rack in the longitudinal direction of the longitudinal guide rail.

9. The container corner post welding line of claim 1, wherein, Further comprising: The corner column feeding device, the corner piece feeding device, the corner column and corner piece spot welding device, the corner column and corner piece fixed welding device, and the corner column and reinforcement welding device are arranged in the longitudinal direction from upstream to downstream. The corner column feeding device, the corner piece feeding device, the corner column and corner piece spot welding device, the corner column and corner piece fixed welding device, and the corner column and reinforcement welding device are respectively matched with at least one storage work station on the storage rack. The corner column feeding device is configured to feed the corner column to the storage work station on the feeding side of the storage rack. The corner column and corner piece spot welding device has a corner piece work station for placing the corner piece. The corner piece feeding device is configured to feed the corner piece to the corner piece work station. The corner column and corner piece spot welding device is configured to position and spot weld the corner piece of the storage work station on the storage rack and the corner piece on the corner piece work station. The corner column and corner piece fixed welding device is configured to fixedly weld the spot-welded corner column and corner piece on the storage work station on the storage rack. The corner column and reinforcement welding device is configured to feed and weld the reinforcement to the fixedly welded corner column on the storage work station on the storage rack.

10. The container corner post welding line of claim 9, wherein, Further comprising: The corner column and corner piece fixed welding device includes an inner surface welding work station and an outer surface welding work station. The inner surface welding work station and the outer surface welding work station are respectively matched with the position of at least one storage work station on the storage rack. The inner surface welding work station is configured to weld the inner surface between the corner column and the corner piece placed in the storage work station on the storage rack. The outer surface welding work station is configured to lift the corner column on the storage work station on the storage rack, clamp the lifted corner column, and then rotate the storage rack at both axial ends of the clamped corner column to weld the outer surface between the corner column and the corner piece.

11. The container corner post welding line of claim 1, wherein, Further comprising: A plurality of auxiliary work racks are arranged on at least one lateral side of the storage rack, close to the discharging side of the storage rack. The auxiliary work rack includes a rack body, and a plurality of conveying rollers are arranged in the rack body in the direction perpendicular to the storage work station. The length direction of the conveying roller extends in the longitudinal direction. A tensile test bench and a product batching bench are arranged downstream of the storage rack. The tensile test bench is configured to detect the tensile force of the corner column and corner piece workpiece output from the discharging side of the storage rack. The product batching bench is used to stack the products after the tensile force detection is completed.

12. The container corner post welding production line according to claim 1, characterized in that, the rack further comprises a portal frame, which is arranged transversely above the reciprocating conveying device and the storage rack; a plurality of welding robots are arranged in longitudinal intervals and invertedly on the bottom surface of the portal frame, and one welding robot is arranged corresponding to at least one storage work station of the storage rack for welding the corner post on the storage work station.

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