Plate unit U rib internal welding multi-head integrated machine and changeover process

Abstract

The application discloses a plate unit U rib inner welding multi-head integrated machine and a production change process, relates to the plate unit welding technical field, and comprises an adjustable plate unit support unit and a multi-welding arm plate unit inner welding machine.The adjustable plate unit support unit comprises a support jig device and a plate unit position self-adaptive adjustment positioning device.The design of the support jig device and the plate unit position self-adaptive adjustment positioning device can adapt to plate units with different sizes and shapes, and the universality of the equipment is improved.The adjustable position welding arm device can be adjusted according to the specific distribution and spacing of U ribs, and is suitable for different plate unit designs.The position of each adjustable position welding arm device can be independently adjusted through a welding arm position adjusting mechanism.The target of adjustment is to accurately align the central axis of each welding arm with the central axis of a corresponding U rib on the plate unit to be welded.The production change can be quickly performed for the inner welding of plate units with different specifications and sizes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate unit welding, in particular to a plate unit U-rib internal welding multi-head integrated machine and a production change process. BACKGROUND

[0002] Plate units are core prefabricated components in modern steel structures (such as bridges and buildings), which are composed of face plates and multiple rib plates through welding. The arrangement of rib plates (such as U-rib and T-rib) directly affects the fatigue performance and stability of the structure. For example, full penetration welding of U-rib in bridge orthotropic plate can significantly improve the fatigue resistance.

[0003] Currently, the main working mode of plate unit internal welding is to first hoist the assembled and positioned plate unit to the assembly platform, and then the multiple internal welding arms of the gantry internal welding machine follow the gantry frame to pass through the hole in the middle of the fixed plate unit rib plate, and then the internal welding is performed after insertion.

[0004] However, the sizes of rib plates of different plate units are different, and the number of rib plates is also different, so it is necessary to disassemble the excess internal welding arms to achieve the matching purpose. However, disassembling the internal welding arms greatly increases the difficulty of production change and affects production efficiency. SUMMARY

[0005] In order to solve the above technical problems, the present application provides a plate unit U-rib internal welding multi-head integrated machine and a production change process. The following technical solutions are adopted:

[0006] The plate unit U-rib internal welding multi-head integrated machine comprises an adjustable plate unit support unit and a multi-welding arm plate unit internal welding machine. The adjustable plate unit support unit comprises a support jig device and a plate unit position self-adaptive adjustment positioning device. The top surface of the support jig device is used to support the plate unit to be welded. The plate unit position self-adaptive adjustment positioning device is used to fix the positions of the two sides of the plate unit to be welded. The multi-welding arm plate unit internal welding machine comprises a gantry, a gantry walking mechanism, multiple welding machines and multiple adjustable position welding arm devices. The gantry walking mechanism is installed at the bottom of the gantry and walks on the support rail beam. The multiple welding machines are installed on the gantry. One end of the multiple adjustable position welding arm devices is connected with the gantry and performs welding actions under the control of the multiple welding machines respectively. The bottom moves forward and backward on the multiple welding arm rail beams. The positions of the multiple adjustable position welding arm devices are adjusted by the welding arm position adjusting mechanism respectively, so that the central axis positions of the multiple adjustable position welding arm devices coincide with the central axis positions of the multiple U-ribs of the plate unit to be welded respectively. The gantry walking mechanism drives the gantry to move forward, and the multiple adjustable position welding arm devices enter the multiple U-ribs of the plate unit to be welded respectively to perform plate unit internal welding actions.

[0007] By adopting the above technical solutions, the plate unit to be welded is first placed on the top surface of the support jig device. The support jig device provides the main load bearing and basic positioning.

[0008] Next, the adaptive adjustment and positioning device for the plate unit position will activate, which will fix the two sides of the plate unit to be welded. This adaptive adjustment means that it can make fine adjustments according to the actual size and shape of the plate unit, ensuring that the plate unit is stable in position and will not move during the welding process, laying the foundation for subsequent precise welding.

[0009] The welding machine for the multi-arm plate unit is mounted on a gantry. The gantry moves along tracks (usually laid on the ground or on a special support structure) via a gantry traveling mechanism at its bottom, allowing the entire equipment to move back and forth to cover the entire welding area of ​​the plate unit to be welded.

[0010] The bottom of the equipment is also supported by multiple track beams, which provides additional stability and ensures the stability of the gantry crane during movement and operation.

[0011] Multiple welding machines are mounted on the gantry, each connected to an adjustable welding arm device. One end of each welding arm device is fixed to the gantry.

[0012] The position adjustment mechanism allows for independent adjustment of each adjustable welding arm. The goal of this adjustment is to precisely align the central axis of each welding arm with the central axis of the corresponding U-rib on the plate unit to be welded. This is crucial for enabling rapid changeovers for welding plate units of different sizes. Once all welding arms are in the correct position, the gantry traveling mechanism drives the gantry to move forward.

[0013] As the gantry crane moves forward, each adjustable welding arm device, under the control of its respective welding machine, enters the interior of the U-rib along the central axis of its corresponding U-rib.

[0014] The welding machine starts, and the welding carriage inside the plate unit performs welding operations inside the U-rib, completing the welding inside the plate unit. Because multiple welding arms and the welding machine work simultaneously, parallel welding of multiple U-ribs can be achieved.

[0015] The design of the support frame device and the self-adaptive adjustment and positioning device for the plate unit position enables it to adapt to plate units of different sizes and shapes to be welded, thus improving the versatility of the equipment.

[0016] The adjustable position welding arm device allows for adjustment based on the specific distribution and spacing of the U-ribs, adapting to different plate unit designs.

[0017] The equipment is highly automated, with the welding process completed by machines. This reduces the need for manual entry into the narrow, enclosed interior of the U-rib for welding, improves the working environment for workers, reduces labor intensity, and also reduces related safety risks.

[0018] Optionally, the support frame device includes multiple fixed support beam assemblies and a support frame plate. The bottom of the multiple fixed support beam assemblies is detachably installed on the precast foundation, and the top forms a support surface. The bottom of the support frame plate is detachably installed on the top surface of the multiple fixed support beam assemblies. Fixed positioning process holes and dynamic positioning process holes are respectively opened on the support frame plate at the positions corresponding to the multiple fixed support beam assemblies.

[0019] Optionally, the support frame device also includes multiple plate unit lifting assemblies for assisting hoisting. Each plate unit lifting assembly includes a lifting cylinder and a lifting column. The base of the lifting cylinder is detachably installed on the precast foundation, and the bottom of the lifting column is detachably installed on the piston rod end of the lifting cylinder. When the piston rod of the lifting cylinder extends or retracts, the lifting column extends and retracts at the hoisting auxiliary process hole opened on the support frame plate.

[0020] Optionally, the adaptive adjustment positioning device for the plate unit position includes a fixed-end positioning assembly and a moving-end positioning assembly. The fixed-end positioning assembly includes a fixed-end telescopic cylinder and a fixed hook plate. The cylinder body of the fixed-end telescopic cylinder is detachably mounted on the fixed support beam assembly. One end of the fixed hook plate is detachably mounted on the piston rod end of the fixed-end telescopic cylinder and located within the fixed positioning process hole. When the piston rod of the fixed-end telescopic cylinder retracts, the fixed hook plate fixes one side of the steel panel of the plate unit to be welded. The moving-end positioning assembly includes a moving-end linear guide rail, a moving-end telescopic cylinder, a moving hook plate, and a lateral moving hydraulic cylinder. The moving hydraulic cylinders are respectively installed on the fixed support beam assembly. The cylinder body of the moving end telescopic cylinder is detachably installed on the slider of the moving end linear guide rail. One end of the moving hook plate is detachably installed on the piston rod end of the moving end telescopic cylinder and located in the dynamic positioning process hole. The piston rod of the lateral moving hydraulic cylinder is connected to the cylinder body of the moving end telescopic cylinder. When the piston rod of the lateral moving hydraulic cylinder extends or retracts, it drives the moving end telescopic cylinder to move linearly laterally on the track of the moving end linear guide rail. At the same time, the moving hook plate moves within the dynamic positioning process hole. The positional change between the moving hook plate and the fixed hook plate matches the lateral dimensions of the plate unit to be welded of different specifications.

[0021] By adopting the above technical solution, firstly, the plate unit to be welded is roughly placed on the support frame plate by external hoisting equipment (such as a crane), so that its position roughly corresponds to the support surface formed by the fixed support beam assembly.

[0022] Then, the operator activates the plate unit lifting assembly. The piston rod of the lifting cylinder extends, driving the lifting column upward until it passes through the lifting auxiliary process hole opened on the support frame plate and presses against the bottom of the plate unit to be welded.

[0023] As the lifting column continues to rise, it lifts the plate unit to be welded slightly off the support surface of the supporting frame plate, creating a small gap between the plate unit and the supporting frame plate. At this point, the external hoisting equipment can release its hook.

[0024] The piston rod of the fixed-end telescopic cylinder retracts, causing the fixed hook plate to move inward. The fixed hook plate is designed to enter the fixed positioning process hole on the support jig plate and ultimately hook onto the steel panel on one side of the plate unit to be welded. This provides a fixed lateral positioning reference.

[0025] Operate the lateral movement hydraulic cylinder according to the specific lateral dimensions (width) of the plate unit to be welded.

[0026] The piston rod of the lateral moving hydraulic cylinder extends or retracts, driving the moving end telescopic cylinder and its mounted cylinder body to move laterally in a straight line along the moving end linear guide rail.

[0027] The piston rod of the movable telescopic cylinder retracts, causing the movable hook plate to move inward, allowing it to enter the corresponding dynamic positioning process hole on the support frame plate and hook onto the steel panel on the other side of the plate unit to be welded. By adjusting the position of the lateral movement hydraulic cylinder, the position of the movable hook plate relative to the fixed hook plate can be changed, thus accommodating plate units of different widths to be welded. The design of the dynamic positioning process hole allows for this position adjustment.

[0028] The piston rods of the fixed-end telescopic cylinder and the moving-end telescopic cylinder are retracted respectively, and the moving hook plate and the fixed hook plate respectively position and press the steel panel of the plate unit to be welded.

[0029] The plate unit to be welded has been precisely positioned and fixed on the support frame device according to its own dimensions.

[0030] Optionally, the unit position adaptive adjustment positioning device also includes a plate unit edge removal mechanism. The plate unit edge removal mechanism includes a reverse moving telescopic cylinder and a reverse moving hook plate. The reverse moving telescopic cylinder is detachably mounted on the fixed support beam assembly. One end of the reverse moving hook plate is mounted on the piston rod end of the reverse moving telescopic cylinder, and the other end is located in the fixed positioning process hole. When the piston rod of the reverse moving telescopic cylinder is in the initial position, the reverse moving hook plate is parallel to the fixed hook plate. When the piston rod of the reverse moving telescopic cylinder extends, the reverse moving hook plate separates one side of the plate unit to be welded from the fixed hook plate.

[0031] By adopting the above technical solution, when the plate unit is completed and needs to be hoisted away from the support frame plate, the moving hook plate can be controlled to move away from the side of the plate unit. However, the fixed hook plate is close to the other side of the plate unit. If it is not dealt with, it will affect the hoisting. At this time, the reverse moving telescopic cylinder is used to drive the reverse moving hook plate to separate the plate unit from the fixed hook plate. Then the reverse moving hook plate is reset, and the hoisting can begin.

[0032] Optionally, the adjustable position welding arm device includes a welding arm bottom support assembly, a welding arm, a welding trolley inside the plate unit, and a welding arm position adjustment mechanism. The bottom of the welding arm bottom support assembly is mounted on a support track beam, the bottom of the welding arm is located at the top of the welding arm bottom support assembly, one end of the welding arm is connected to the gantry, the welding trolley inside the plate unit is mounted on the other end of the welding arm, and the welding arm position adjustment mechanism is used to adjust the position of the welding arm.

[0033] Optionally, the welding arm bottom support assembly includes a welding arm support frame, multiple frame support wheels, a welding arm lateral movement track beam, a welding arm lateral support column, and lateral support rollers. The multiple frame support wheels are respectively installed at the bottom of the welding arm support frame. When the gantry moves, the multiple frame support wheels move on multiple welding arm track beams. The bottom of the welding arm lateral movement track beam is detachably installed on the top of the welding arm support frame. The lateral support rollers are installed at the bottom of the welding arm lateral support column. The bottom of the welding arm is detachably installed on the top of the welding arm lateral support column. When the welding arm position adjustment mechanism drives the welding arm to move laterally, the lateral support rollers roll on the welding arm lateral movement track beam to adjust the lateral position of the welding arm.

[0034] Optionally, the welding arm position adjustment mechanism includes a rack, multiple gear rings, and multiple transverse drive motors. The bottom of the rack is mounted on the welding arm support frame, and the multiple gear rings are respectively mounted on the welding arm through bearing seats, with the gear rings meshing with the rack. The multiple transverse drive motors are respectively mounted on the welding arm and drive the multiple gear rings to move on the rack to achieve lateral adjustment of the welding arm position.

[0035] By adopting the above technical solution, the bottom support assembly of the welding arm is mounted on multiple support rail beams via multiple jig support wheels. When the gantry traveling mechanism drives the gantry to move back and forth along the support rail beams, the entire bottom support assembly of the welding arm, along with the welding arm and the welding trolley within the plate unit, moves longitudinally together. This allows the welding arm device to cover the entire length of the plate unit.

[0036] The welding arm support frame provides the structural foundation for the entire bottom support assembly.

[0037] A detachable lateral movement track beam is mounted on top of the welding arm support frame. This track beam provides a guide for the lateral movement of the welding arm.

[0038] The bottom of the welding arm is detachably mounted on top of the welding arm's transverse support column. Transverse support rollers are installed at the bottom of the welding arm's transverse support column.

[0039] When lateral position adjustment is required, the lateral support rollers will enter the lateral movement track beam of the welding arm to provide support and guidance for the lateral movement of the welding arm.

[0040] The welding arm position adjustment mechanism is the core component, which includes a rack fixed on the welding arm support frame, multiple gear rings mounted on the welding arm, and multiple transverse drive motors mounted on the welding arm.

[0041] When the welding arm needs to be adjusted to a new lateral position, the lateral drive motor starts. The motor drives the gear ring connected to it.

[0042] The gear ring meshes with the stationary rack. The motor drives the gear ring to roll along the rack, thereby causing the entire welding arm and the welding arm's transverse support column to move laterally on the welding arm's transverse moving track beam.

[0043] By controlling the rotation angle and direction of multiple transverse drive motors, the welding arm can be precisely adjusted to the target position, so that the central axis of the welding arm (and the welding carriage inside the plate unit at its end) is aligned with the central axis of a U-rib on the plate unit to be welded.

[0044] After adjustment, the welding arm can move longitudinally along with the gantry frame to weld the U-rib.

[0045] Optionally, it also includes a controller, which controls the execution actions of each actuator of the adjustable plate unit support unit and the multi-welding arm plate unit welding machine.

[0046] By adopting the above technical solutions, automated control can be achieved using a PLC programmable controller or an industrial control computer, or manual button control can be used.

[0047] The changeover process for a multi-head integrated machine for U-rib internal welding of board units involves using this machine to perform U-rib internal welding on board units of different specifications. The changeover process for different specifications of board units includes the following steps:

[0048] Step 1: Determine the width of the steel panel of the plate unit to be welded, the dimensions of the U-ribs, and their positions on the steel panel.

[0049] Step 2: Hoist the plate unit to be welded onto the support frame plate, control the lifting columns of the multiple plate unit lifting components to rise, place the plate unit to be welded on the top of the multiple lifting columns, remove the lifting device, the multiple lifting columns retract, and the plate unit to be welded is located on the top surface of the support frame plate.

[0050] Step 3: Control the piston rod of the lateral moving hydraulic cylinder to drive the moving hook plate to move laterally and contact one side of the plate unit to be welded, and further control the piston rod to make the other side of the plate unit to be welded contact the fixed hook plate to complete the position adjustment.

[0051] Step 4: Control the piston rods of the fixed end telescopic cylinder and the moving end telescopic cylinder to retract, and the moving hook plate and the fixed hook plate to position and press the steel panel of the plate unit to be welded.

[0052] Step 5: Based on the fixed position of the U-rib of the plate unit to be welded, control the transverse drive motors of multiple adjustable welding arm devices to move so that the welding carriage inside the plate unit faces the gap in the middle of the U-rib, and the welding arm position adjustment is completed, thus completing the changeover process.

[0053] In summary, the present invention has at least one of the following beneficial technical effects:

[0054] This invention provides a multi-head integrated machine for welding U-ribs in plate units and a production changeover process. The design of the support frame device and the plate unit position adaptive adjustment and positioning device enables it to adapt to plate units of different sizes and shapes to be welded, thus improving the versatility of the equipment.

[0055] The adjustable position welding arm device allows for adjustment based on the specific distribution and spacing of the U-ribs, adapting to different plate unit designs. The position of each adjustable welding arm can be independently adjusted via a welding arm position adjustment mechanism. The goal of adjustment is to precisely align the central axis of each welding arm with the central axis of the corresponding U-rib on the plate unit to be welded. This enables rapid changeover for welding blocks within plate units of different sizes. Attached Figure Description

[0056] Figure 1 This is a side view structural schematic diagram of the multi-head integrated machine for welding U-ribs in the plate unit of the present invention;

[0057] Figure 2 yes Figure 1 A magnified structural diagram of region A;

[0058] Figure 3 yes Figure 1 A magnified structural diagram of region B;

[0059] Figure 4 This is a top view structural schematic diagram of the multi-head integrated machine for welding U-ribs in the plate unit of the present invention;

[0060] Figure 5 yes Figure 1 Schematic diagram of the AA section structure;

[0061] Figure 6 yes Figure 1 Schematic diagram of the BB cross-section structure;

[0062] Figure 7 yes Figure 1 A schematic diagram of the CC section structure;

[0063] Figure 8 This is a side view of the support frame device of the multi-head integrated machine for U-rib internal welding of the plate unit of the present invention.

[0064] Figure 9This is a top view schematic diagram of the support frame device of the multi-head integrated machine for U-rib internal welding of plate unit of the present invention.

[0065] Explanation of reference numerals in the attached drawings: 1. Support frame device; 11. Fixed support beam assembly; 12. Support frame plate; 121. Fixed positioning process hole; 122. Dynamic positioning process hole; 131. Lifting cylinder; 132. Lifting column; 141. Fixed end telescopic cylinder; 142. Fixed hook plate; 151. Moving end telescopic cylinder; 152. Moving hook plate; 153. Lateral movement hydraulic cylinder; 21. Gantry frame; 22. Gantry frame traveling mechanism; 241. Welding arm; 242. Welding trolley within the plate unit; 243. Welding arm support frame; 244. Frame support wheel; 245. Welding arm lateral movement track beam; 246. Welding arm lateral support column; 247. Lateral support roller; 251. Rack; 253. Lateral movement drive motor; 100. Plate unit to be welded; 1001. U-rib; 101. Support track beam; 102. Welding arm track beam. Detailed Implementation

[0066] The present invention will be further described in detail below with reference to the accompanying drawings.

[0067] This invention discloses a multi-head integrated machine for welding U-ribs in board units and a production changeover process.

[0068] Reference Figure 1 - Figure 9 Example 1: A multi-head integrated welding machine for U-rib internal welding of plate units includes an adjustable plate unit support unit and a multi-welding arm plate unit internal welding machine. The adjustable plate unit support unit includes a support frame device 1 and a plate unit position adaptive adjustment and positioning device. The top surface of the support frame device 1 is used to support the plate unit 100 to be welded. The plate unit position adaptive adjustment and positioning device is used to fix the positions of the two sides of the plate unit 100 to be welded. The multi-welding arm plate unit internal welding machine includes a gantry frame 21, a gantry frame traveling mechanism 22, multiple welding machines, and multiple adjustable position welding arm devices. The gantry frame traveling mechanism 22 is installed at the bottom of the gantry frame 21 and is located on the upper part of the support track beam 101. Multiple welding machines are installed on the gantry 21. One end of multiple adjustable position welding arm devices is connected to the gantry 21 and performs welding actions under the control of the multiple welding machines. The bottom moves back and forth on multiple welding arm track beams 102. The positions of the multiple adjustable position welding arm devices are adjusted by the welding arm position adjustment mechanism so that the central axis of the multiple adjustable position welding arm devices coincides with the central axis of the multiple U-ribs 1001 of the plate unit 100 to be welded. The gantry traveling mechanism 22 drives the gantry 21 forward, and the multiple adjustable position welding arm devices enter the multiple U-ribs 1001 of the plate unit 100 to be welded to perform the plate unit internal welding action.

[0069] The plate unit 100 to be welded is first placed on the top surface of the support frame device 1. The support frame device 1 provides the main load-bearing and foundation positioning.

[0070] Next, the adaptive adjustment and positioning device for the plate unit position will activate, which will fix both sides of the plate unit 100 to be welded. This adaptive adjustment means that it can make fine adjustments according to the actual size and shape of the plate unit, ensuring that the plate unit is stable and does not move during the welding process, laying the foundation for subsequent precise welding.

[0071] The welding machine for the multi-arm plate unit is mounted on the gantry 21. The gantry 21 moves along the track 100 (usually laid on the ground or on a special support structure) via the gantry traveling mechanism 22 at its bottom, so as to move the entire equipment back and forth to cover the entire welding area of ​​the plate unit 100 to be welded.

[0072] The bottom of the equipment is also located on multiple support rail beams 101, which provides additional stable support and ensures the stability of the gantry 21 during movement and operation.

[0073] Multiple welding machines are mounted on the gantry 21, each connected to an adjustable welding arm device. One end of each welding arm device 24 is fixed to the gantry 21.

[0074] The position of each adjustable welding arm can be independently adjusted via the welding arm position adjustment mechanism. The goal of the adjustment is to precisely align the central axis of each welding arm 24 with the central axis of the corresponding U-rib 1001 on the plate unit 100 to be welded. This is key to enabling rapid production changeover for welding within plate units of different sizes. Once all welding arms 24 are in the correct position, the gantry traveling mechanism 22 drives the gantry 21 to begin moving forward.

[0075] As the gantry 21 moves forward, each adjustable welding arm device, under the control of its respective welding machine, enters the interior of the U-rib along the central axis of its corresponding U-rib 1001.

[0076] The welding machine starts, and the welding carriage inside the plate unit performs welding operations inside the U-rib, completing the welding inside the plate unit. Because multiple welding arms and the welding machine work simultaneously, parallel welding of multiple U-ribs can be achieved.

[0077] By configuring multiple welding machines and adjustable welding arm devices, this equipment can simultaneously weld multiple U-ribs 1001 on the plate unit 100 to be welded. Compared with the traditional method of welding one rib at a time with a single-head welding machine, it greatly shortens the welding time and significantly improves production efficiency.

[0078] The design of the support frame device 1 and the plate unit position adaptive adjustment positioning device enables it to adapt to different sizes and shapes of the plate units 100 to be welded, thus improving the versatility of the equipment.

[0079] The adjustable position welding arm device allows for adjustment based on the specific distribution and spacing of U-ribs 1001, adapting to different plate unit designs.

[0080] The equipment is highly automated, with the welding process completed by machines. This reduces the need for manual entry into the narrow, enclosed interior of the U-rib for welding, improves the working environment for workers, reduces labor intensity, and also reduces related safety risks.

[0081] In Example 2, the support frame device 1 includes multiple fixed support beam assemblies 11 and a support frame plate 12. The bottoms of the multiple fixed support beam assemblies 11 are detachably installed on the precast foundation, and the tops form a support surface. The bottoms of the support frame plate 12 are detachably installed on the top surface of the multiple fixed support beam assemblies 11. Fixed positioning process holes 121 and dynamic positioning process holes 122 are respectively opened on the support frame plate 12 at the positions corresponding to the multiple fixed support beam assemblies 11.

[0082] In Example 3, the support frame device 1 also includes multiple plate unit lifting assemblies for assisting hoisting. The plate unit lifting assembly includes a lifting cylinder 131 and a lifting column 132. The base of the lifting cylinder 131 is detachably installed on the precast foundation, and the bottom of the lifting column 132 is detachably installed on the piston rod end of the lifting cylinder 131. When the piston rod of the lifting cylinder 131 extends or retracts, the lifting column 132 extends and retracts at the hoisting auxiliary process hole 123 opened on the support frame plate 12.

[0083] Example 4: The adaptive adjustment positioning device for the plate unit position includes a fixed-end positioning component and a moving-end positioning component. The fixed-end positioning component includes a fixed-end telescopic cylinder 141 and a fixed hook plate 142. The cylinder body of the fixed-end telescopic cylinder 141 is detachably mounted on the fixed support beam assembly 11. One end of the fixed hook plate 142 is detachably mounted on the piston rod end of the fixed-end telescopic cylinder 141 and is located in the fixed positioning process hole 121. When the piston rod of the fixed-end telescopic cylinder 141 retracts, the fixed hook plate 142 fixes one side of the steel panel of the plate unit 100 to be welded. The moving-end positioning component includes a moving-end linear guide rail, a moving-end telescopic cylinder 151, a moving hook plate 152, and a transverse moving hydraulic cylinder 153. The moving-end linear guide rail and the transverse moving hydraulic cylinder 153... Cylinders 153 are respectively installed on the fixed support beam assembly 11. The cylinder body of the moving end telescopic cylinder 151 is detachably installed on the slider of the moving end linear guide rail. One end of the moving hook plate 152 is detachably installed on the piston rod end of the moving end telescopic cylinder 151 and located in the dynamic positioning process hole 122. The piston rod of the transverse moving hydraulic cylinder 153 is connected to the cylinder body of the moving end telescopic cylinder 151. When the piston rod of the transverse moving hydraulic cylinder 153 extends or retracts, it drives the moving end telescopic cylinder 151 to move linearly on the track of the moving end linear guide rail. At the same time, the moving hook plate 152 moves within the dynamic positioning process hole 122. The positional change between the moving hook plate 152 and the fixed hook plate 142 matches the transverse dimensions of the plate unit 100 to be welded of different specifications.

[0084] First, the plate unit 100 to be welded is roughly placed on the support frame plate 12 by external hoisting equipment (such as a crane), so that its position roughly corresponds to the support surface formed by the fixed support beam assembly 11.

[0085] Then, the operator activates the plate unit lifting assembly. The piston rod of the lifting cylinder 131 extends, driving the lifting column 132 to move upward until the lifting column 132 passes through the lifting auxiliary process hole 123 opened on the support frame plate 12 and presses against the bottom of the plate unit 100 to be welded.

[0086] As the lifting column 132 continues to rise, it lifts the plate unit 100 to be welded from the support surface of the support frame plate 12 by a small height, creating a small gap between the plate unit 100 to be welded and the support frame plate 12. At this time, the external hoisting equipment can release its hook.

[0087] The piston rod of the fixed-end telescopic cylinder 141 retracts, causing the fixed hook plate 142 to move inward. The fixed hook plate 142 is designed to enter the fixed positioning process hole 121 on the support frame plate 12 and ultimately hook onto the steel panel on one side of the plate unit 100 to be welded. This provides a fixed lateral positioning reference.

[0088] Based on the specific lateral dimensions (width) of the plate unit 100 to be welded, operate the lateral movement hydraulic cylinder 153.

[0089] The piston rod of the lateral moving hydraulic cylinder 153 extends or retracts, driving the moving end telescopic cylinder 151 and its cylinder body mounted thereon to move laterally in a straight line along the moving end linear guide rail.

[0090] The piston rod of the movable telescopic cylinder 151 retracts, causing the movable hook plate 152 to move inward, allowing it to enter the dynamic positioning process hole 122 at the corresponding position on the support frame plate 12 and hook onto the steel panel on the other side of the plate unit 100 to be welded. By adjusting the position of the lateral moving hydraulic cylinder 153, the position of the movable hook plate 152 relative to the fixed hook plate 142 can be changed, thereby accommodating plate units 100 of different widths. The design of the dynamic positioning process hole 122 allows for this position adjustment.

[0091] The piston rods of the fixed end telescopic cylinder 141 and the moving end telescopic cylinder 151 are retracted respectively, and the moving hook plate 152 and the fixed hook plate 142 respectively position and press the steel panel of the plate unit 100 to be welded.

[0092] The plate unit 100 to be welded has been precisely positioned and fixed on the support frame device 1 according to its own dimensions.

[0093] Example 5: The unit position adaptive adjustment positioning device further includes a plate unit edge removal mechanism. The plate unit edge removal mechanism includes a reverse movement telescopic cylinder and a reverse movement hook plate. The reverse movement telescopic cylinder is detachably installed on the fixed support beam assembly 11. One end of the reverse movement hook plate is installed at the piston rod end of the reverse movement telescopic cylinder, and the other end is located in the fixed positioning process hole 121. When the piston rod of the reverse movement telescopic cylinder is in the initial position, the reverse movement hook plate is parallel to the fixed hook plate 142. When the piston rod of the reverse movement telescopic cylinder extends, the reverse movement hook plate separates one side of the plate unit 100 to be welded from the fixed hook plate 142.

[0094] When the plate unit is completed and needs to be hoisted away from the support frame plate 12, the movable hook plate 152 can be controlled to move away from the side of the plate unit. However, the fixed hook plate 142 is close to the other side of the plate unit. If it is not dealt with, it will affect the hoisting. At this time, the reverse moving telescopic cylinder is used to drive the reverse moving hook plate to separate the plate unit from the fixed hook plate 142. Then the reverse moving hook plate is reset, and the hoisting can begin.

[0095] Example 6: The adjustable position welding arm device includes a welding arm bottom support assembly, a welding arm 241, a welding trolley 242 inside the plate unit, and a welding arm position adjustment mechanism. The bottom of the welding arm bottom support assembly is mounted on the support track beam 101, the bottom of the welding arm 241 is located at the top of the welding arm bottom support assembly, one end of the welding arm 241 is connected to the gantry 21, the welding trolley 242 inside the plate unit is mounted on the other end of the welding arm 241, and the welding arm position adjustment mechanism is used to adjust the position of the welding arm 241.

[0096] Example 7: The welding arm bottom support assembly includes a welding arm support frame 243, multiple frame support wheels 244, a welding arm transverse movement track beam 245, a welding arm transverse support column 246, and transverse support rollers 247. The multiple frame support wheels 244 are respectively installed at the bottom of the welding arm support frame 243. When the gantry 21 moves, the multiple frame support wheels 244 move on the multiple welding arm track beams 102. The bottom of the welding arm transverse movement track beam 245 is detachably installed on the top of the welding arm support frame 243. The transverse support rollers 247 are installed at the bottom of the welding arm transverse support column 246. The bottom of the welding arm 241 is detachably installed on the top of the welding arm transverse support column 246. When the welding arm position adjustment mechanism drives the welding arm 241 to move laterally, the transverse support rollers 247 roll on the welding arm transverse movement track beam 245 to adjust the transverse position of the welding arm 241.

[0097] Example 8: The welding arm position adjustment mechanism includes a rack 251, multiple gear rings, and multiple transverse drive motors 253. The bottom of the rack 251 is mounted on the welding arm support frame 243. The multiple gear rings are respectively mounted on the welding arm 241 through bearing seats, and the gear rings mesh with the rack 251. The multiple transverse drive motors 253 are respectively mounted on the welding arm 241 and drive the multiple gear rings to move on the rack 251 to achieve transverse adjustment of the position of the welding arm 241.

[0098] The welding arm bottom support assembly is mounted on multiple support track beams 101 via multiple jig support wheels 244. When the gantry traveling mechanism 22 drives the gantry 21 to move back and forth along the support track beams 101, the entire welding arm bottom support assembly, along with the welding arm 241 and the welding trolley 242 within the plate unit, move longitudinally together. This allows the welding arm device to cover the entire length of the plate unit 100.

[0099] The welding arm support frame 243 provides the structural foundation for the entire bottom support assembly.

[0100] A welding arm lateral movement track beam 245 is detachably mounted on the top of the welding arm support jig 243. This track beam provides a guide for the lateral movement of the welding arm.

[0101] The bottom of the welding arm 241 is detachably mounted on the top of the welding arm transverse support column 246. A transverse support roller 247 is mounted on the bottom of the welding arm transverse support column 246.

[0102] When lateral position adjustment is required, the lateral support roller 247 will enter the lateral movement track beam 245 of the welding arm to provide support and guidance for the lateral movement of the welding arm 241.

[0103] The welding arm position adjustment mechanism is the core component, which includes a rack 251 fixed on the welding arm support frame 243, multiple gear rings mounted on the welding arm 241, and multiple transverse drive motors 253 mounted on the welding arm 241.

[0104] When it is necessary to adjust the welding arm 241 to a new lateral position, the lateral drive motor 253 is activated. The motor 253 drives the gear ring connected to it.

[0105] The gear ring meshes with the stationary rack 251. The motor drives the gear ring to roll along the rack 251, thereby causing the entire welding arm 241 and the welding arm transverse support column 246 to move laterally on the welding arm transverse movement track beam 245.

[0106] By controlling the rotation angle and direction of multiple transverse drive motors 253, the welding arm 241 can be precisely adjusted to the target position, so that the central axis of the welding arm 241 (and the welding carriage 242 at its end) is aligned with the central axis of a certain U-rib 1001 on the plate unit 100 to be welded.

[0107] After adjustment, the welding arm 241 can move longitudinally together with the gantry 21 to perform welding of the U-rib 1001.

[0108] Example 9 also includes a controller, which controls the execution actions of each actuator of the adjustable plate unit support unit and the welding machine in the multi-welding arm plate unit.

[0109] Automated control can be achieved using a PLC programmable controller or an industrial control computer, or it can be achieved using manual button control.

[0110] Example 10: Changeover process of multi-head integrated machine for U-rib internal welding of board unit. The multi-head integrated machine for U-rib internal welding of board unit is used to perform internal welding of U-ribs 1001 on board units 100 of different specifications. The changeover process for board units 100 of different specifications includes the following steps:

[0111] Step 1: Determine the width of the steel panel of the plate unit 100 to be welded, the dimensions of the U-rib 1001, and its position data on the steel panel;

[0112] Step 2: Hoist the plate unit 100 to be welded onto the support frame plate 12, control the lifting columns 132 of the multiple plate unit lifting components to rise, place the plate unit 100 to be welded on top of the multiple lifting columns 132, remove the lifting device, the multiple lifting columns 132 retract, and the plate unit 100 to be welded is located on the top surface of the support frame plate 12.

[0113] Step 3: Control the piston rod of the lateral moving hydraulic cylinder 153 to drive the moving hook plate 152 to move laterally and contact one side of the plate unit 100 to be welded, and further control the piston rod to make the other side of the plate unit 100 to be welded contact the fixed hook plate 142 to complete the position adjustment.

[0114] Step 4: Control the piston rods of the fixed end telescopic cylinder 141 and the moving end telescopic cylinder 151 to retract, and the moving hook plate 152 and the fixed hook plate 142 respectively position and press the steel panel of the plate unit 100 to be welded.

[0115] Step 5: Based on the fixed position of the U-rib 1001 of the plate unit to be welded, control the transverse drive motors 253 of multiple adjustable position welding arm devices to move, so that the welding carriage 242 inside the plate unit faces the middle gap of the U-rib 1001, and the position adjustment of the welding arm 241 is completed, thus completing the changeover process.

[0116] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multi-head integrated welding machine for U-rib internal welding of plate units, characterized in that: The system includes an adjustable plate unit support unit and a multi-arm plate unit internal welding machine. The adjustable plate unit support unit includes a support frame device (1) and a plate unit position adaptive adjustment and positioning device. The top surface of the support frame device (1) is used to support the plate unit (100) to be welded. The plate unit position adaptive adjustment and positioning device is used to fix the positions of the two sides of the plate unit (100) to be welded. The multi-arm plate unit internal welding machine includes a gantry (21), a gantry traveling mechanism (22), multiple welding machines, and multiple adjustable position welding arm devices. The gantry traveling mechanism (22) is installed at the bottom of the gantry (21) and travels on the support track beam (101). The machine is installed on the gantry (21). One end of multiple adjustable position welding arm devices is connected to the gantry (21) and performs welding actions under the control of multiple welding machines. The bottom moves back and forth on multiple welding arm track beams (102). The positions of multiple adjustable position welding arm devices are adjusted by the welding arm position adjustment mechanism so that the central axis of multiple adjustable position welding arm devices coincides with the central axis of multiple U-ribs (1001) of the plate unit (100) to be welded. The gantry walking mechanism (22) drives the gantry (21) forward. Multiple adjustable position welding arm devices enter the multiple U-ribs (1001) of the plate unit (100) to be welded to perform the plate unit internal welding action. The support frame device (1) includes multiple fixed support beam assemblies (11) and a support frame plate (12). The bottom of the multiple fixed support beam assemblies (11) is detachably installed on the precast foundation, and the top forms a support surface. The bottom of the support frame plate (12) is detachably installed on the top surface of the multiple fixed support beam assemblies (11). Fixed positioning process holes (121) and dynamic positioning process holes (122) are respectively opened on the support frame plate (12) at the positions corresponding to the multiple fixed support beam assemblies (11). The support frame device (1) also includes multiple plate unit lifting assemblies for assisting hoisting. The plate unit lifting assembly includes a lifting cylinder (131) and a lifting column (132). The base of the lifting cylinder (131) is detachably installed on the precast foundation. The bottom of the lifting column (132) is detachably installed at the end of the piston rod of the lifting cylinder (131). When the piston rod of the lifting cylinder (131) extends or retracts, the lifting column (132) extends and retracts at the hoisting auxiliary process hole (123) opened on the support frame plate (12). The adaptive adjustment positioning device for the plate unit position includes a fixed end positioning component and a moving end positioning component. The fixed end positioning component includes a fixed end telescopic cylinder (141) and a fixed hook plate (142). The cylinder body of the fixed end telescopic cylinder (141) is detachably mounted on the fixed support beam assembly (11). One end of the fixed hook plate (142) is detachably mounted on the piston rod end of the fixed end telescopic cylinder (141) and located in the fixed positioning process hole (121). When the piston rod of the fixed end telescopic cylinder (141) retracts, the fixed hook plate (142) fixes one side of the steel panel of the plate unit (100) to be welded. The moving end positioning component includes a moving end linear guide, a moving end telescopic cylinder (151), a moving hook plate (152), and a transverse moving hydraulic cylinder (153). The moving end linear guide and the transverse moving hydraulic cylinder (151) are detachably mounted on the piston rod end of the fixed end telescopic cylinder (141) and located in the fixed positioning process hole (121). When the piston rod of the fixed end telescopic cylinder (141) retracts, the fixed hook plate (142) fixes one side of the steel panel of the plate unit (100) to be welded. 3) Installed on the fixed support beam assembly (11) respectively, the cylinder body of the moving end telescopic cylinder (151) is detachably installed on the slider of the moving end linear guide rail, one end of the moving hook plate (152) is detachably installed on the piston rod end of the moving end telescopic cylinder (151) and located in the dynamic positioning process hole (122), the piston rod of the transverse moving hydraulic cylinder (153) is connected to the cylinder body of the moving end telescopic cylinder (151), when the piston rod of the transverse moving hydraulic cylinder (153) extends or retracts, it drives the moving end telescopic cylinder (151) to move linearly on the track of the moving end linear guide rail, while the moving hook plate (152) moves in the dynamic positioning process hole (122), and the position change between the moving hook plate (152) and the fixed hook plate (142) matches the transverse dimensions of the different specifications of the plate unit (100) to be welded; The U-rib (1001) internal welding of different specifications of board units (100) is performed using a multi-head integrated machine for board unit U-rib internal welding. The changeover process for different specifications of board units (100) includes the following steps: Step 1: Determine the width of the steel panel of the plate unit (100) to be welded, the dimensions of the U-rib (1001), and the position data of the U-rib on the steel panel; Step 2: Hoist the plate unit (100) to be welded onto the support frame plate (12), control the lifting columns (132) of the multiple plate unit lifting components to rise, place the plate unit (100) to be welded on top of the multiple lifting columns (132), remove the lifting device, the multiple lifting columns (132) retract, and the plate unit (100) to be welded is located on the top surface of the support frame plate (12); Step 3: Control the piston rod of the lateral moving hydraulic cylinder (153) to drive the moving hook plate (152) to move laterally and contact one side of the plate unit (100) to be welded, and further control the piston rod to make the other side of the plate unit (100) to be welded contact the fixed hook plate (142) to complete the position adjustment. Step 4: Control the piston rods of the fixed end telescopic cylinder (141) and the moving end telescopic cylinder (151) to retract respectively, and the moving hook plate (152) and the fixed hook plate (142) respectively position and press the steel panel of the plate unit (100) to be welded; Step 5: Based on the position of the U-rib (1001) of the fixed plate unit (100) to be welded, control the transverse drive motor (253) of multiple adjustable position welding arm devices to move, so that the welding carriage (242) inside the plate unit moves toward the middle gap of the U-rib (1001) and the position adjustment of the welding arm (241) is completed, thus completing the production change process.

2. The multi-head integrated welding machine for U-rib internal welding of plate units according to claim 1, characterized in that... The unit position adaptive adjustment positioning device also includes a plate unit edge removal mechanism, which includes a reverse movement telescopic cylinder and a reverse movement hook plate. The reverse movement telescopic cylinder is detachably installed on the fixed support beam assembly (11). One end of the reverse movement hook plate is installed at the piston rod end of the reverse movement telescopic cylinder, and the other end is located in the fixed positioning process hole (121). When the piston rod of the reverse movement telescopic cylinder is in the initial position, the reverse movement hook plate is parallel to the fixed hook plate (142). When the piston rod of the reverse movement telescopic cylinder extends, the reverse movement hook plate separates one side of the plate unit (100) to be welded from the fixed hook plate (142).

3. The multi-head integrated welding machine for U-rib internal welding of plate units according to claim 2, characterized in that: The adjustable position welding arm device includes a welding arm bottom support assembly, a welding arm (241), a welding trolley (242) inside the plate unit, and a welding arm position adjustment mechanism. The bottom of the welding arm bottom support assembly is mounted on the support track beam (101), and the bottom of the welding arm (241) is located at the top of the welding arm bottom support assembly. One end of the welding arm (241) is connected to the gantry (21), and the welding trolley (242) inside the plate unit is mounted on the other end of the welding arm (241). The welding arm position adjustment mechanism is used to adjust the position of the welding arm (241).

4. The multi-head integrated welding machine for U-rib internal welding of plate units according to claim 3, characterized in that: The welding arm bottom support assembly includes a welding arm support frame (243), multiple frame support wheels (244), a welding arm transverse movement track beam (245), a welding arm transverse support column (246), and transverse support rollers (247). Multiple frame support wheels (244) are respectively installed at the bottom of the welding arm support frame (243). When the gantry (21) moves, the multiple frame support wheels (244) move on multiple welding arm track beams (102). The welding arm transverse movement track beams (245, 246, 247)... 5) The bottom of the welding arm is detachably installed on the top of the welding arm support frame (243). The transverse support roller (247) is installed on the bottom of the welding arm transverse support column (246). The bottom of the welding arm (241) is detachably installed on the top of the welding arm transverse support column (246). When the welding arm position adjustment mechanism drives the welding arm (241) to move laterally, the transverse support roller (247) rolls on the welding arm transverse movement track beam (245) to realize the adjustment of the transverse position of the welding arm (241).

5. The multi-head integrated welding machine for U-rib internal welding of plate units according to claim 4, characterized in that: The welding arm position adjustment mechanism includes a rack (251), multiple gear rings, and multiple transverse drive motors (253). The bottom of the rack (251) is mounted on the welding arm support frame (243). The multiple gear rings are mounted on the welding arm (241) through bearing seats and mesh with the rack (251). The multiple transverse drive motors (253) are mounted on the welding arm (241) and drive the multiple gear rings to move on the rack (251) to achieve transverse adjustment of the welding arm (241) position.

6. The multi-head integrated welding machine for U-rib internal welding of plate units according to claim 5, characterized in that: It also includes a controller, which controls the execution actions of each actuator of the adjustable plate unit support unit and the welding machine in the multi-welding arm plate unit.

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