Large-tonnage single-drive double-layer sliding switching platform

Abstract

The present application relates to the technical field of flexible quick change, in particular to a large-tonnage single-drive double-layer sliding switching platform, comprising a bottom guide driving mechanism and a double-layer sliding switching assembly; the double-layer sliding switching assembly comprises a lower-layer sliding switching platform, an upper-layer sliding switching platform, a servo motor and a transmission gear, a rack and two groups of fixed driven gears, the rack is arranged in the middle part of the bottom guide driving mechanism, the fixed driven gears are arranged on both sides of the middle part, the double-layer platforms are both slidingly arranged in the bottom guide driving mechanism, the servo motor and the transmission gear are arranged on the lower-layer platform and are engaged with the rack, the side parts of the double-layer platforms are provided with fixed racks and are engaged with the fixed driven gears; the platform realizes reverse linkage sliding of the double-layer platforms through single driving source and gear and rack transmission, makes the upper piece and welding operation carried out in parallel, effectively shortens the operation cycle, improves the equipment utilization and production efficiency, has compact structure and strong bearing capacity, and is suitable for large-tonnage flexible quick change production demand.

Description

Technical Field

[0001] This invention relates to the field of flexible quick-change technology, and in particular to a large-tonnage single-drive double-layer sliding switching platform. Background Technology

[0002] Unidirectional linkage double-layer switching equipment is commonly used in flexible quick-change applications, especially suitable for the production of large-tonnage welding products equipped with a single loading port. The operating efficiency, positioning accuracy, and space occupancy of this type of switching platform directly affect the overall production cycle, site utilization, and comprehensive manufacturing cost of the welding production line. Currently, welding switching platforms in the industry generally adopt a single-layer unidirectional sliding structure. During the production process, the workpiece is loaded and unloaded at the loading port, then slides into the welding area for welding operations. After welding is completed, it slides back to the loading port, thus completing a unidirectional cycle for a single operation.

[0003] This single-layer, unidirectional, circulating welding operation method has low overall production efficiency. The operation cycle of a single machine is constrained by the switching time of the sliding table, which is relatively long. The loading and unloading of parts and the welding operation cannot be carried out synchronously and in parallel, resulting in low equipment utilization and long waiting time for operators. At the same time, the single-layer structure of the workstation layout makes it difficult to increase production capacity in a limited space and fails to meet the needs of efficient and compact welding production. Therefore, there is an urgent need for a unidirectional linkage double-layer switching equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a large-tonnage single-drive double-layer sliding switching platform, which solves the problems in the prior art where the operation cycle of a single piece of equipment is constrained by the switching time of the sliding table, the loading and unloading of parts and welding operations cannot be carried out synchronously and in parallel, resulting in low equipment utilization and long waiting time for operators. At the same time, the single-layer structure of the workstation layout makes it difficult to increase production capacity in a limited space, and it is difficult to meet the needs of efficient and compact welding production.

[0005] To achieve the above objectives, the present invention provides a large-tonnage single-drive double-layer sliding switching platform, including a bottom guide drive mechanism and a double-layer sliding switching assembly; The dual-layer sliding switching assembly includes a lower sliding switching platform, an upper sliding switching platform, a servo motor and transmission gears, a rack, and two sets of fixed driven gears. The rack is located in the middle of the bottom guide drive mechanism, and the two sets of fixed driven gears are respectively located on both sides of the middle of the bottom guide drive mechanism. The lower sliding switching platform and the upper sliding switching platform are both slidably mounted on the bottom guide drive mechanism. The servo motor and transmission gears are mounted on the lower sliding switching platform and mesh with the rack. Fixed racks are respectively provided on the sides of the lower sliding switching platform and the upper sliding switching platform, and both sets of fixed racks mesh with the fixed driven gears.

[0006] The bottom guide drive mechanism further includes a floor, three reinforcing beams, four guide rails, and multiple sets of guide mechanisms. The three reinforcing beams are respectively located in the middle and on both sides of the floor, and the four guide rails are located on both sides of the floor. The rack is arranged parallel to the guide rails, and the multiple sets of guide mechanisms are evenly distributed on the floor along the sliding direction.

[0007] The lower sliding switching platform includes a lower floor, multiple sets of high-load-bearing rollers, bidirectional limiting blocks, deceleration guide blocks, and two sets of guiding blocks. The servo motor and transmission gear are located at the middle of the rear end of the lower floor. The multiple sets of high-load-bearing rollers are respectively located on both sides of the lower floor. The lower sliding switching platform rolls with the guide rail through the high-load-bearing rollers. The fixed racks are respectively fixed to the two side edges of the lower floor. The bidirectional limiting blocks are located at the lower right end of the lower floor. The deceleration guide blocks are located at the rear right end of the lower floor. The two sets of guiding blocks are respectively located at both ends of the lower floor on the left side.

[0008] The upper sliding switching platform includes an upper floor, multiple sets of high-load-bearing rollers, and multiple sets of guide blocks. The multiple sets of high-load-bearing rollers are respectively arranged on both sides of the upper floor. The upper sliding switching platform rolls with the guide rail through the high-load-bearing rollers. The fixed racks are respectively fixed to the two side edges of the upper floor, and the multiple sets of guide blocks are respectively arranged at the four corners of both ends of the upper floor.

[0009] The floor is provided with multiple sets of positioning holes along the sliding direction, the lower sliding switching platform is provided with a positioning pin mechanism, and the upper sliding switching platform is provided with a positioning pin mechanism. When sliding to a set work station, the positioning pin mechanism can be inserted into the corresponding positioning hole to achieve repeated positioning of the work station.

[0010] The bottom guide drive mechanism further includes a deceleration mechanism, a stop signal device, and a hard limit mechanism. The deceleration mechanism and the stop signal device are set at the target workstations, and the hard limit mechanism is set at both ends and the middle workstation of the sliding path.

[0011] The bottom guide drive mechanism further includes a control valve, two tank chains, and a control box. The control valve is located on the left rear end of the floor, the two tank chains are respectively installed in the middle and on the right rear end of the floor, and the control box is located on the right rear end of the floor.

[0012] This invention discloses a large-tonnage single-drive double-layer sliding switching platform. In the initial state, the lower platform is located at the workpiece loading station and the upper platform is located at the welding station. After the lower platform completes workpiece clamping, the servo motor drives the transmission gear to move along the bottom rack, causing the lower platform to slide towards the welding station. Simultaneously, the fixed rack on the side of the lower platform drives the fixed driven gear to rotate, driving the upper platform to slide in the opposite direction to the workpiece loading station. After sliding into position, the platform is locked, and the lower platform performs welding operations while the upper platform loads and unloads workpieces, both synchronously and in parallel. After the operation is completed, the servo motor reverses its drive, and the double-layer platform switches between workpieces in the opposite direction, achieving continuous production through cyclical operation. It adopts a single-drive, dual-layer linkage structure. Through a single servo motor and gear rack transmission, the two-layer platform achieves reverse synchronous sliding switching. A single drive source completes parallel operation of the two workstations, significantly shortening the operation cycle and improving equipment utilization and production efficiency. The compact layout of the dual workstations increases production capacity in a limited space. At the same time, the high load-bearing structure is suitable for large-tonnage workpieces, and multiple guiding and positioning mechanisms ensure switching accuracy and operational stability, effectively meeting the needs of efficient and compact welding production. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the bottom guide drive mechanism of the present invention.

[0015] Figure 2 This is a schematic diagram of the lower-level sliding switching platform of the present invention.

[0016] Figure 3 This is a schematic diagram of the upper-level sliding switching platform of the present invention.

[0017] 101-Floor, 102-Reinforcing beam, 103-Guide rail, 104-Fixed driven gear, 105-Guiding mechanism, 106-Rack, 107-Positioning hole, 108-Reduction mechanism, 109-Stop signal device, 110-Hard limit mechanism, 111-Control valve, 112-Tank chain, 113-Control box, 201-Lower floor, 202-High load capacity roller, 203-Fixed rack, 204-Bidirectional limit block, 205-Reduction guide block, 206-Positioning pin mechanism, 207-Servo motor and transmission gear, 208-Guide block, 301-Upper floor, 302-High load capacity roller, 303-Fixed rack, 304-Positioning pin mechanism, 305-Guide block. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1 to 3 This invention provides a large-tonnage single-drive double-layer sliding switching platform, including a bottom guide drive mechanism and a double-layer sliding switching assembly. The double-layer sliding switching assembly includes a lower sliding switching platform, an upper sliding switching platform, a servo motor and transmission gears, a rack, and two sets of fixed driven gears. The rack is located in the middle of the bottom guide drive mechanism, and the two sets of fixed driven gears are respectively located on both sides of the middle of the bottom guide drive mechanism. The lower and upper sliding switching platforms are slidably mounted on the bottom guide drive mechanism. The servo motor and transmission gears are mounted on the lower sliding switching platform and mesh with the rack. Fixed racks are respectively provided on the sides of the lower and upper sliding switching platforms, and both sets of fixed racks mesh with the fixed driven gears.

[0020] In this embodiment, the bottom guide drive mechanism provides the bottom support and sliding guide foundation for the overall device. The double-layer sliding switching component provides driving force through a single set of servo motors and transmission gears 207 meshing with the rack 106. In conjunction with the fixed driven gears 104 on both sides, the fixed rack 203 of the lower sliding switching platform and the fixed rack 303 of the upper sliding switching platform are driven to drive the double-layer platforms to slide in opposite directions. Only a single drive source is needed to achieve synchronous switching of the double-layer workstations, allowing the loading and unloading of parts and welding operations to be carried out in parallel, effectively shortening the single operation cycle and improving equipment utilization and production efficiency. At the same time, the double-layer sliding structure has a compact layout, which can double the number of workstations in a limited space and adapt to the needs of large-tonnage flexible quick change production.

[0021] Furthermore, the bottom guide drive mechanism also includes a floor, three reinforcing beams, four guide rails, and multiple sets of guide mechanisms. The three reinforcing beams are respectively arranged in the middle and on both sides of the floor, the four guide rails are respectively arranged on both sides of the floor, the rack is arranged parallel to the guide rails, and the multiple sets of guide mechanisms are evenly distributed on the floor along the sliding direction.

[0022] In this embodiment, the floor 101 serves as the bottom load-bearing base of the overall device. The three reinforcing beams 102 are respectively arranged in the middle and on both sides, which can significantly improve the load-bearing rigidity and deformation resistance of the bottom structure, making it suitable for heavy-duty load conditions. The four guide rails 103 are arranged on both sides to provide sliding guidance for the double-layer platform. The rack 106 is arranged parallel to the guide rails 103 to ensure transmission engagement accuracy. Multiple sets of guiding mechanisms 105 are evenly arranged along the sliding direction to further constrain lateral sliding offset, ensuring that the double-layer platform slides smoothly and straight, providing stable and reliable bottom support for heavy-duty sliding switching.

[0023] Furthermore, the lower sliding switching platform includes a lower floor, multiple sets of high-load-bearing rollers, bidirectional limiting blocks, deceleration guide blocks, and two sets of guiding blocks. The servo motor and transmission gear are located at the middle of the rear end of the lower floor. The multiple sets of high-load-bearing rollers are respectively located on both sides of the lower floor. The lower sliding switching platform rolls with the guide rail through the high-load-bearing rollers. The fixed racks are respectively fixed to the two side edges of the lower floor. The bidirectional limiting blocks are located at the lower right end of the lower floor. The deceleration guide blocks are located at the rear right end of the lower floor. The two sets of guiding blocks are respectively located at both ends of the lower floor on the left side.

[0024] In this embodiment, the lower floor 201 serves as the main load-bearing structure of the lower platform. Multiple sets of high-load-bearing rollers 202 are distributed on both sides and roll in cooperation with the guide rail 103, providing strong load-bearing capacity and low sliding resistance, making them suitable for conveying large-tonnage workpieces. The fixed rack 203 is fixed to the side to transmit linkage power. The bidirectional limiting block 204 can limit the sliding stroke range. The deceleration guide block 205 can cooperate with the deceleration mechanism to achieve smooth deceleration before reaching the destination. Two sets of guide blocks 208 are arranged at both ends to ensure lateral centering during the sliding process, avoiding uneven loading and jamming. The overall structure takes into account both high load-bearing capacity and precise positioning, ensuring stable sliding switching of the lower platform.

[0025] Furthermore, the upper sliding switching platform includes an upper floor, multiple sets of high-load-bearing rollers, and multiple sets of guide blocks. The multiple sets of high-load-bearing rollers are respectively disposed on both sides of the upper floor. The upper sliding switching platform rolls with the guide rail through the high-load-bearing rollers. The fixed racks are respectively fixed to the two side edges of the upper floor, and the multiple sets of guide blocks are respectively disposed at the four corners of both ends of the upper floor.

[0026] In this embodiment, the upper floor 301 serves as the main body for supporting the workpiece on the upper platform. Multiple sets of high-load-bearing rollers 302 are distributed on both sides and roll in cooperation with the guide rail 103 to ensure smooth sliding operation. The fixed rack 303 is fixed on the side and meshes with the fixed driven gear 104, and moves in the opposite direction in conjunction with the lower platform. Multiple sets of guide blocks 305 are arranged at the four corners at both ends, which can constrain the lateral position of the sliding throughout the entire process, ensure centering accuracy, avoid workstation offset, ensure that the workstation switching is completed synchronously and accurately with the lower platform, and support the parallel operation of loading and welding.

[0027] Furthermore, the floor is provided with multiple sets of positioning holes along the sliding direction, the lower sliding switching platform is provided with a positioning pin mechanism, and the upper sliding switching platform is provided with a positioning pin mechanism. When sliding to a set work station, the positioning pin mechanism can be inserted into the corresponding positioning hole to achieve repeated positioning of the work station.

[0028] In this embodiment, multiple sets of positioning holes 107 are provided on the floor 101 along the sliding direction, corresponding to each target workstation. The positioning pin mechanism 206 of the lower sliding switching platform and the positioning pin mechanism 304 of the upper sliding switching platform can be inserted into the corresponding positioning holes 107 when sliding to the set workstation, so as to realize the mechanical locking and high-precision repeatable positioning of the workstation, avoid the movement and displacement after sliding to the position, ensure the positional consistency of welding and upper workstation, and improve the processing accuracy and production batch stability.

[0029] Furthermore, the bottom guide drive mechanism also includes a deceleration mechanism, a stop signal device, and a hard limit mechanism. The deceleration mechanism and the stop signal device are set at the target workstations, and the hard limit mechanism is set at both ends and the middle workstation of the sliding path.

[0030] In this embodiment, the deceleration mechanism 108 and the stop signal device 109 are set to the target workstations. When the sliding mechanism approaches the target workstation, it can automatically trigger deceleration and trigger a stop when it reaches the target workstation, ensuring smooth and shock-free workstation switching. The hard limit mechanism 110 is set at both ends and the middle workstation of the sliding path, serving as the final mechanical protection to prevent damage to the equipment and workpiece caused by overtravel. The combination of multiple limit protections greatly improves the safety and reliability of equipment operation.

[0031] Furthermore, the bottom guide drive mechanism also includes a control valve, two tank chains, and a control box. The control valve is located on the left rear end of the floor, the two tank chains are respectively installed in the middle and on the right rear end of the floor, and the control box is located on the right rear end of the floor.

[0032] In this embodiment, the control valve 111 is used to control the operation of the pneumatic components of the equipment. The two tank chains 112 are respectively arranged in the middle and rear ends, which can accommodate and protect cables and pipes, and move synchronously with the sliding to avoid pulling damage. The control box 113 integrates electrical control components and is centrally arranged at the rear end for easy operation and maintenance. The overall electrical and piping system layout is neat and orderly, adaptable to the industrial site production environment, and ensures long-term stable operation of the equipment.

[0033] When using the large-tonnage single-drive double-layer sliding switching platform of this embodiment, in the initial state, the lower sliding switching platform is located at the upper workstation, and the upper sliding switching platform is located at the welding station. The operator at the upper workstation first completes the workpiece clamping and fixing on the lower floor 201, and then issues a switching command. The servo motor and transmission gear 207 start, meshing with the rack 106 to drive the lower sliding switching platform to slide along the guide rail 103 towards the welding station. During the sliding process, the fixed racks 203 on both sides of the lower floor 201 synchronously drive the fixed driven gears 104 to rotate. Through the transmission of the fixed driven gears 104, the fixed racks 303 on both sides of the upper floor 301 move in the opposite direction, causing the upper sliding switching platform to slide in the opposite direction along the guide rail 103 and move towards the upper workstation. During the sliding movement, multiple sets of guiding mechanisms 105 and guide blocks 208 and 305 jointly constrain the lateral position, ensuring the double-layer platform slides in a centered manner, while the high-load-bearing rollers 202 and 302 carry the workpiece and roll smoothly. When approaching the target station, the deceleration guide block 205 triggers the deceleration mechanism 108, causing the double-layer platform to decelerate and slide. Upon reaching the target position, the stop signal device 109 triggers a shutdown, and the positioning pin mechanisms 206 and 304 extend and insert into the corresponding positioning holes 107 to lock the station. At this time, the lower sliding switching platform enters the welding station for welding operations, while the upper sliding switching platform reaches the loading station for workpiece loading and unloading, with both operations carried out simultaneously. After both welding and loading operations are completed, the positioning pin mechanisms 206 and 304 retract and unlock, the servo motor and transmission gear 207 reverse drive, and the double-layer platform reverses its linkage to switch stations, entering the next work cycle, thereby achieving continuous and efficient production.

[0034] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A unidirectional linkage double-layer switching device, comprising a bottom guide drive mechanism, characterized in that, It also includes a dual-layer sliding switching component; The dual-layer sliding switching assembly includes a lower sliding switching platform, an upper sliding switching platform, a servo motor and transmission gears, a rack, and two sets of fixed driven gears. The rack is located in the middle of the bottom guide drive mechanism, and the two sets of fixed driven gears are respectively located on both sides of the middle of the bottom guide drive mechanism. The lower sliding switching platform and the upper sliding switching platform are both slidably mounted on the bottom guide drive mechanism. The servo motor and transmission gears are mounted on the lower sliding switching platform and mesh with the rack. Fixed racks are respectively provided on the sides of the lower sliding switching platform and the upper sliding switching platform, and both sets of fixed racks mesh with the fixed driven gears.

2. The unidirectional linkage dual-layer switching device as described in claim 1, characterized in that, The bottom guide drive mechanism also includes a floor, three reinforcing beams, four guide rails, and multiple sets of guide mechanisms. The three reinforcing beams are respectively arranged in the middle and on both sides of the floor, and the four guide rails are respectively arranged on both sides of the floor. The rack is arranged parallel to the guide rails, and the multiple sets of guide mechanisms are evenly distributed on the floor along the sliding direction.

3. The unidirectional linkage dual-layer switching device as described in claim 2, characterized in that, The lower sliding switching platform includes a lower floor, multiple sets of high-load-bearing rollers, bidirectional limiting blocks, deceleration guide blocks, and two sets of guiding blocks. The servo motor and transmission gear are located at the middle of the rear end of the lower floor. The multiple sets of high-load-bearing rollers are respectively located on both sides of the lower floor. The lower sliding switching platform rolls with the guide rail through the high-load-bearing rollers. The fixed racks are respectively fixed to the two side edges of the lower floor. The bidirectional limiting blocks are located at the lower right end of the lower floor. The deceleration guide blocks are located at the rear right end of the lower floor. The two sets of guiding blocks are respectively located at both ends of the lower floor on the left side.

4. The unidirectional linkage dual-layer switching device as described in claim 3, characterized in that, The upper sliding switching platform includes an upper floor, multiple sets of high-load-bearing rollers, and multiple sets of guide blocks. The multiple sets of high-load-bearing rollers are respectively arranged on both sides of the upper floor. The upper sliding switching platform rolls with the guide rail through the high-load-bearing rollers. The fixed racks are respectively fixed to the two side edges of the upper floor, and the multiple sets of guide blocks are respectively arranged at the four corners of both ends of the upper floor.

5. The unidirectional linkage dual-layer switching device as described in claim 4, characterized in that, Multiple sets of positioning holes are provided on the floor along the sliding direction. A positioning pin mechanism is provided on the lower sliding switching platform and the upper sliding switching platform. When sliding to a set work station, the positioning pin mechanism can be inserted into the corresponding positioning hole to achieve repeated positioning of the work station.

6. The unidirectional linkage dual-layer switching device as described in claim 5, characterized in that, The bottom guide drive mechanism also includes a deceleration mechanism, a stop signal device, and a hard limit mechanism. The deceleration mechanism and the stop signal device are set at the target workstations, and the hard limit mechanism is set at both ends and the middle workstation of the sliding path.

7. The unidirectional linkage dual-layer switching device as described in claim 6, characterized in that, The bottom guide drive mechanism also includes a control valve, two tank chains, and a control box. The control valve is located at the rear left of the floor, the two tank chains are respectively installed in the middle and rear right of the floor, and the control box is located at the rear right of the floor.

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