Stereoscopic warehouse goods shelf welding automation system and method

Abstract

The invention discloses a stereoscopic warehouse goods shelf welding automation system and method, and belongs to the technical field of goods shelf welding. The system comprises a slewing mechanism, a sectional type positioning mechanism, N sets of supporting mechanisms, a feeding mechanism, a welding mechanism and a conveying mechanism. The slewing mechanism at least comprises a rotatable welding platform; the sectional type positioning mechanism is arranged on the welding platform; the N sets of supporting mechanisms are arranged on the welding platform in an array mode. The feeding mechanism is arranged on the welding platform relative to the sectional type positioning mechanism; the welding mechanism is arranged above the welding platform; and the conveying mechanism is arranged below the welding platform. In the welding process, physical contact between workpieces is guaranteed, and the welding strength and stability are enhanced by applying proper acting force; after welding is completed, the welding platform is rotated to enable the assembly to automatically fall down, the assembly is conveyed to a designated position through the conveying mechanism, and the full-automatic process from welding to conveying is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of shelf welding, and particularly relates to a three-dimensional warehouse shelf welding automation system and method. Background Art

[0002] With the rapid development of the modern logistics industry, as an important facility to improve storage efficiency and space utilization rate, the construction quality and speed of three-dimensional warehouses have become particularly crucial. The shelf structure in a three-dimensional warehouse mainly depends on the stable connection between columns and crossbars, and these components are combined through welding processes to form a solid framework. To ensure the overall strength and stability of the three-dimensional warehouse, the welding quality between columns and crossbars is of vital importance.

[0003] However, in actual operations, traditional welding methods often rely on manual labor to weld columns and multiple crossbars. This is not only time-consuming and laborious with low efficiency, but also difficult to ensure the consistency and stability of welding quality. Due to possible errors during manual welding, the strength of welding points may be uneven or structural deformation may occur, and these problems directly affect the safety and service life of the three-dimensional warehouse. Especially in the modern warehousing environment that needs to quickly respond to changes in market demand, how to efficiently and accurately achieve the automated welding of three-dimensional warehouse shelves has become an urgent problem to be solved. Summary of the Invention

[0004] Object of the Invention: To solve the above problems, the present invention provides a three-dimensional warehouse shelf welding automation system and method.

[0005] Technical Solution: A three-dimensional warehouse shelf welding automation system, applied to the combined connection scenario of workpiece i, workpiece j, and workpiece k, includes: A rotary mechanism, including a rotatable welding platform and a drive assembly drivingly connected to the welding platform; A segmented positioning mechanism, arranged on the welding platform; the segmented positioning mechanism is configured to perform segmented positioning on workpiece i along its length direction; N groups of support mechanisms, arranged in an array on the welding platform and located on one side of the segmented positioning mechanism; each group of support mechanisms is configured to support a group of workpiece j; A feeding mechanism, arranged on the welding platform relative to the segmented positioning mechanism; the feeding mechanism is configured to accommodate workpiece k arranged in a stacked manner and feed workpiece k one by one; A welding mechanism, arranged above the welding platform; the welding mechanism at least includes a weld assembly that can move in multiple directions; the weld assembly is configured to sequentially weld one end of workpiece i and workpiece j, and weld the other end of workpiece j and workpiece k; The transport mechanism is disposed below the welding platform; the transport mechanism at least includes a transport surface with an adjustable inclination angle; the transport mechanism is configured to transport the assembly of workpiece i, workpiece j, and workpiece k.

[0006] In a further embodiment, the feeding mechanism includes: A linear motion module is disposed on the welding platform along the length direction of the welding platform; A base is drivingly connected to the linear motion module; A support plate, the bottom end of which is slidably connected to the welding platform; A position fine-tuning member is connected to the base; the output end of the position fine-tuning member is connected to the support plate; A receiving bin, one end of which is connected to the support plate; at the top and bottom ends of the other end of the receiving bin, mounting blocks are respectively provided; an output port is provided at the end of the receiving bin close to the mounting block; the receiving bin is configured to receive stacked workpiece k; Upper and lower auxiliary positioning components are respectively disposed on the mounting blocks.

[0007] In a further embodiment, the auxiliary positioning component includes: A driving member is disposed on the mounting block; A positioning member is drivingly connected to the driving member; the positioning member is configured to rotate under the drive of the driving member; The positioning member includes: a connecting portion, and a positioning portion integrally formed with the connecting portion and used for contacting workpiece k.

[0008] In a further embodiment, a hollow hole is provided at the central position of the support plate; a pushing member is provided on the base; The output end of the pushing member passes through the hollow portion and contacts workpiece k; the pushing member is configured to push workpiece k for blanking as required.

[0009] In a further embodiment, the transport mechanism includes: A frame is disposed below the welding platform; A rotating frame is disposed on the frame and one end is rotatably connected to the frame; A telescopic member is installed on the side wall of the frame and its output end is connected to the rotating frame; A roller transport assembly is disposed on the rotating frame, In a further embodiment, the segmented positioning mechanism includes: Two groups of four-jaw chucks are respectively disposed on the welding platform and are configured to position the end of workpiece i; A power member is disposed on the side of the four-jaw chuck and is connected thereto for driving the four-jaw chuck to move; Multiple groups of card holders are provided between the four-jaw chucks.

[0010] In a further embodiment, the support mechanism includes at least two groups of support frames; a hollow portion is formed on the top surface of the support frame in a downward direction.

[0011] In a further embodiment, the drive assembly includes: Two side frames are provided on both sides of the welding platform; Rotating discs with the same number as the side frames are provided on the side frames; A slewing frame body, with both ends thereof connected to the rotating discs respectively; the welding platform is installed on the slewing frame body.

[0012] In a further embodiment, the welding mechanism further includes: a three-way motion assembly, and a six-axis robotic arm connected to the three-way motion assembly; the output end of the six-axis robotic arm is connected to the welding assembly.

[0013] In another technical solution, a method for automatic welding of a three-dimensional warehouse shelf is provided. Based on a three-dimensional warehouse shelf automatic welding system as described above, it includes the following steps: Step 1: Layout the workpieces: Place workpiece i in the segmented positioning mechanism, place N groups of workpiece j on the support mechanism respectively, and set one end of each workpiece j to abut against workpiece i; place multiple groups of workpiece j in a stacked manner in the feeding mechanism; Step 2: Weld the workpieces: Adjust the position of the feeding mechanism so that the current workpiece k closest to the output port in the feeding mechanism abuts against the other end of the current workpiece j, and there is a force between the current workpiece k and the current workpiece j; Move the welding assembly and control the welding assembly to weld the current workpiece j and workpiece i, and the current workpiece j and the current workpiece j; After welding is completed, move the feeding mechanism to make the next workpiece k abut against the next workpiece j, then move the welding assembly and weld the next workpiece j and workpiece i, and the next workpiece j and the next workpiece k. Repeat the above steps until all workpiece j are connected to workpiece i and all workpiece k are connected to workpiece j, obtaining an assembly; Step 3: Transport the workpieces: Rotate the welding platform to make the assembly fall onto the transport mechanism, and the transport mechanism transports the assembly to the corresponding position.

[0014] Beneficial effects: (1) The present invention uses a segmented positioning mechanism and a support mechanism to complete the precise layout of the workpieces, ensuring that each workpiece can be accurately placed in the predetermined position and achieving preliminary fixation; this reduces the errors and time costs of manual operations.

[0015] Through the precise position adjustment of the feeding mechanism and the automated movement and control of the welding assembly, an efficient and high-quality welding operation is achieved.

[0016] (2) During the welding process of the present invention, not only is the physical contact (i.e., abutment) between workpieces ensured, but also the stability is enhanced by applying an appropriate acting force (the acting force exerted by the feeding mechanism on the cross beam), ensuring the consistency of welding quality.

[0017] After welding is completed, the assembly is dropped by rotating the welding platform, and it is transported to the designated position by the transportation mechanism, realizing a fully automated process from welding to transportation. Description of the Drawings

[0018] Figure 1 is the top view of the present invention; Figure 2 is the perspective view of a partial structure of the present invention; Figure 3 is the structural schematic diagram of the feeding mechanism; Figure 4 is the structural schematic diagram of the transportation mechanism.

[0019] Figures 1 to 4 Each label in is: slewing mechanism 1, welding platform 11, driving assembly 12, side frame 121, rotating disk 122, slewing frame body 123, segmented positioning mechanism 2, four-jaw chuck 21, clamping seat 22, power member 23, support mechanism 3, feeding mechanism 4, linear motion module 41, base 42, support plate 43, position fine-tuning member 44, accommodation bin body 45, mounting block 46, output port 47, auxiliary positioning assembly 48, driving member 481, positioning member 482, pushing member 49, welding mechanism 5, welding assembly 51, three-way motion assembly 52, six-axis robotic arm 53, transportation mechanism 6, frame body 61, rotating frame 62, telescopic member 63, roller transportation assembly 64, column 7, cross beam 8, connecting piece 9. Detailed Description of the Invention

[0020] Embodiment 1 As Figure 1 shown, this embodiment provides a three-dimensional warehouse shelf welding automation system (hereinafter referred to as this system), which is applied to the combined connection scenario of workpiece i, workpiece j, and workpiece k; in this embodiment, taking workpiece i as column 7, workpiece j as cross beam 8, and workpiece k as connecting piece 9 as an example for illustration.

[0021] This system includes: slewing mechanism 1, segmented positioning mechanism 2, N groups of support mechanisms 3, feeding mechanism 4, welding mechanism 5, and transportation mechanism 6.

[0022] The slewing mechanism 1 includes a rotatable welding platform 11 and a drive assembly 12 that is drivingly connected to the welding platform 11. The drive assembly 12 drives the welding platform 11 to rotate 360°. The drive assembly 12 specifically includes: two sets of side frames 121, two sets of rotating discs 122, and a slewing frame body 123. The two sets of side frames 121 are respectively on both sides of the welding platform 11, and each set of side frames 121 is equipped with a rotating disc 122, and the rotating disc 122 is driven to rotate by a motor. The two ends of the slewing frame body 123 are respectively connected to the rotating discs 122; the welding platform 11 is installed on the slewing frame body 123.

[0023] In the above technical solution, since the welding platform 11 can be rotated by the rotating disc 122 driven by a motor, the welding workpiece can be processed from multiple angles, increasing the flexibility and adaptability of the welding operation. After welding, the welding platform 11 can be flipped 180 degrees to drop the welded workpiece. This process does not require manual intervention, realizing automatic unloading, improving production efficiency and reducing labor costs. The automatic unloading reduces the risk of workers directly contacting high-temperature welded parts and reduces potential safety hazards caused by manual handling or unloading.

[0024] The segmented positioning mechanism 2 is installed on the welding platform 11; the segmented positioning mechanism 2 is arranged to perform segmented positioning on the workpiece i along its length direction. The segmented positioning mechanism 2 includes: two sets of four-jaw chucks 21, multiple sets of clamping seats 22, and a power member 23. As Figure 2 shown, the two sets of four-jaw chucks 21 are installed on the welding platform 11 and are arranged to position the ends of the upright column 7 (i.e., the workpiece i). The power member 23 is arranged on the side of the four-jaw chuck 21 and is connected to it, and is used to drive the four-jaw chuck 21 to move. The power member 23 can adopt a combination of a motor and a cylinder to drive the four-jaw chuck 21 to rotate and move horizontally. This implementation method is prior art and will not be elaborated here. Multiple sets of clamping seats 22 are arranged in an array between the four-jaw chucks 21. The two ends of the upright column 7 are positioned by the four-jaw chucks 21, and the main body part is located in the clamping seats 22, and the clamping seats 22 provide a supporting force for the upright column 7.

[0025] N sets of support mechanisms 3 are arranged in an array on the welding platform 11 and are located on one side of the segmented positioning mechanism 2; each set of support mechanisms 3 is arranged to support a set of workpieces j. Each set of support mechanisms 3 includes at least two sets of support frames; a hollow part is formed on the top surface of the support frame along the downward direction for forming a space for accommodating the workpiece j.

[0026] The feeding mechanism 4 is installed on the welding platform 11 relative to the segmented positioning mechanism 2; the feeding mechanism 4 is arranged to accommodate the workpieces k arranged in a stacked manner and feed the workpieces k in sequence. As Figure 2 and Figure 3As shown in the figure, the feeding mechanism 4 includes: a linear transportation module, a base 42, a support plate 43, a position fine-tuning member 44, a storage bin body 45, and two groups of auxiliary positioning components 48. The linear motion module 41 is installed on the welding platform 11 along the length direction of the welding platform 11. The base 42 is in transmission connection with the linear motion module 41, and the linear motion module 41 drives the base 42 to perform linear motion along its length direction. The bottom end of the support plate 43 abuts against the welding platform 11 and can slide on the welding platform 11. The position fine-tuning member 44 is installed on the base 42, and its output end is connected to the support plate 43. The position fine-tuning member 44 can be implemented by a cylinder, and the position fine-tuning member 44 can drive the support plate 43 to approach or move away from the workpiece j.

[0027] One end of the storage bin body 45 is connected to the support plate 43. Installation blocks 46 are respectively provided at the top and bottom ends of the other end of the storage bin body 45. The storage bin body 45 is configured to accommodate stacked workpieces k. An output port 47 is provided at the end of the storage bin body 45 close to the installation block 46; the output port 47 is used to output the workpiece k. The two groups of auxiliary positioning components 48 are arranged up and down and are respectively installed on the upper and lower installation blocks 46. Among them, the auxiliary positioning component 48 includes: a driving member 481 and a positioning member 482. The driving member 481 is installed on the installation block 46, and the positioning member 482 is in transmission connection with the driving member 481. The driving member 481 uses a servo motor and can drive the positioning member 482 to rotate. The positioning member 482 includes: a connecting portion, and a positioning portion integrally formed with the connecting portion and used for contacting the workpiece k.

[0028] In addition, a hollow hole is provided at the central position of the support plate 43. A pushing member 49 is provided on the base 42. The output end of the pushing member 49 passes through the hollow portion and contacts the workpiece k; the pushing member 49 is configured to push the workpiece k to discharge materials as required.

[0029] In the above technical solution, the current cross beam 8 (i.e., the current workpiece j) is welded to the welding column 7. The position fine-tuning member 44 is used to drive the support plate 43 to approach the cross beam 8, and then drive the accommodation chamber 45 and the current connecting piece 9 (i.e., the current workpiece k) closest to the output port 47 to approach the cross beam 8, ensuring that one end of the current cross beam 8 is in close contact with the current connecting piece 9 and there is an appropriate acting force therebetween. Furthermore, the current cross beam 8 is also firmly in contact with the column 7 under the support of the support mechanism 3. This precise position adjustment mechanism not only enables the cross beam 8 to be firmly in contact with the column 7, but also provides a solid foundation for subsequent welding operations. Move the welding assembly 51 and use the welding assembly 51 to weld the current cross beam 8 and the column 7; after the current cross beam 8 and the column 7 are welded, move the welding assembly 51 again to weld the current cross beam 8 and the current connecting piece 9. In addition, since the current connecting piece 9 is accurately positioned by the positioning members 482 arranged up and down, this greatly facilitates maintaining high precision and consistency during the welding process. Therefore, the overall system design significantly improves the welding quality and repeatability, and reduces quality problems caused by inaccurate manual positioning.

[0030] After the current cross beam 8 and the current connecting piece 9 are welded, the pusher 49 pushes the stacked connecting pieces 9, so that the next connecting piece 9 approaches the output port 47 and is positioned by the positioning member 482. Move the base 42 and drive the accommodation chamber 45 to move, so that the next connecting piece 9 abuts against the next cross beam 8, and repeat the above welding process until all the cross beams 8 are welded to the columns 7, and each cross beam 8 is welded to a connecting piece 9 to obtain an assembly, and the welding process ends.

[0031] This design scheme realizes a highly automated welding process. From welding the current cross beam 8 to the column 7, to welding the cross beam 8 and the connecting piece 9, until all components are welded to form an assembly, the whole process requires no manual intervention. The pusher 49 is used to push the stacked connecting pieces 9, so that the next connecting piece 9 approaches the output port 47 and is positioned by the positioning member 482, while the moving base 42 drives the accommodation chamber 45 to move to achieve the abutment of the next connecting piece 9 and the next cross beam 8. This automated operation not only greatly improves the production efficiency, but also reduces the labor cost, and at the same time reduces the exposure time of the operator in dangerous environments such as high temperature and heavy objects, enhancing the work safety.

[0032] The welding mechanism 5 is installed above the welding platform 11. The welding mechanism 5 at least includes a welding assembly 51 that can move in multiple directions. The welding assembly 51 is arranged to weld one end of the workpiece i and the workpiece j in sequence, and weld the other end of the workpiece j and the workpiece k. The welding assembly 51 includes: a welding gun, a wire feeding device, etc.

[0033] The welding mechanism 5 further includes: a three-way motion component 52, and a six-axis robotic arm 53 connected to the three-way motion component 52; the output end of the six-axis robotic arm 53 is connected to the welding component 51. The three-way motion component 52 can move in three mutually perpendicular directions, which generally correspond to the X-axis, Y-axis, and Z-axis in the Cartesian coordinate system. The three-way motion component 52 is implemented by using existing technologies such as a combination of linear slide rails and lead screws, and rack and pinion transmission. The combination of the three-way motion component 52 and the six-axis robotic arm enables the welding component 51 to achieve highly flexible multi-directional motion in three-dimensional space, including linear movement along the X, Y, and Z axes and complex posture adjustment achieved through the six-axis robotic arm.

[0034] The transport mechanism 6 is arranged below the welding platform 11. The transport mechanism 6 at least includes a transport surface with an adjustable inclination angle; the transport mechanism 6 is arranged to transport the combined parts of workpiece i, workpiece j, and workpiece k. As Figure 4 shown, the transport mechanism 6 includes: a frame body 61, a rotating frame 62, a telescopic member 63, and a roller transport component 64. The frame body 61 is arranged below the welding platform 11. The rotating frame 62 is arranged on the frame body 61 and one end is rotatably connected to the frame body 61. The telescopic member 63 is installed on the side wall of the frame body 61 and its output end is connected to the rotating frame 62. The telescopic member 63 uses a cylinder or a hydraulic cylinder, etc. Driven by the telescopic member 63, the rotating member rotates to adjust the angle. The roller transport component 64 is installed on the rotating member. The surface of the roller transport component 64 forms a transport surface. When the rotating member has an inclination angle, the transport surface has an inclination angle.

[0035] In the above technical solution, after the combined parts of workpiece i, workpiece j, and workpiece k are welded to form a combined part, the welding platform 11 rotates, and at the same time, the telescopic member 63 drives the rotating frame 62 to lift up and approach the welding platform 11. Control the four-jaw chuck 21 to release the column 7, and then the combined part has a downward tendency due to the action of gravity. Immediately use the rotating frame 62 to catch the combined part and transport the combined part; reduce the chance of direct contact between the operator and high temperature or heavy objects, and reduce the safety risk caused by manual handling or unloading. The above unloading process does not require manual intervention, greatly shortens the time required for unloading workpieces, and improves the overall efficiency of the production line. The high degree of automation of the whole process not only reduces the dependence on manual operation, but also improves the stability and consistency of production.

[0036] Since the combined part is controlled during the unloading process (for example, caught by the rotating member), the possibility of damage caused by dropping or collision is reduced, which helps to maintain the integrity of the product. The combined part is caught and transported away in time, avoiding the situation of blocking caused by piling up on the welding platform 11, simplifying the subsequent processing steps, and preparing for the next batch of welding operations.

[0037] Embodiment 2 In this embodiment, an automatic welding method for a three-dimensional warehouse shelf (hereinafter referred to as this method) is provided. Based on the automatic welding system for a three-dimensional warehouse shelf described in Embodiment 1, it includes the following steps: Step 1, workpiece layout: Place workpiece i in the segmented positioning mechanism 2, place N groups of workpiece j on the support mechanism 3 respectively, and set one end of each workpiece j to abut against workpiece i; Place multiple groups of workpiece j in the feeding mechanism 4 in a stacked manner; Step 2, workpiece welding: Adjust the position of the feeding mechanism 4 so that the current workpiece k closest to the output port 47 in the feeding mechanism 4 abuts against the other end of the current workpiece j, and there is a force between the current workpiece k and the current workpiece j; Move the welding assembly 51 and control the welding assembly 51 to weld the current workpiece j and workpiece i, and the current workpiece j and the current workpiece j; After welding is completed, move the feeding mechanism 4 to make the next workpiece k abut against the next workpiece j, then move the welding assembly 51 and weld the next workpiece j and workpiece i, and the next workpiece j and the next workpiece k. Repeat the above steps until all workpiece j are connected to workpiece i and all workpiece k are connected to workpiece j to obtain an assembly; Step 3, workpiece transportation: Rotate the welding platform 11 to make the assembly fall onto the transportation mechanism 6, and the transportation mechanism 6 transports the assembly to the corresponding position.

[0038] In the above Step 2, each sub-step does not exist in isolation, but is closely connected and interdependent, jointly constituting an efficient, precise and automatic welding process. In Step 2, first, it is necessary to adjust the position of the feeding mechanism 4 so that the current workpiece k (connecting piece 9) closest to the output port 47 abuts against one end of the current workpiece j (cross beam 8) and apply an appropriate force. This process not only ensures the correct relative position between the connecting piece 9 and the cross beam 8, but also provides the necessary physical conditions for high-quality welding in the subsequent process.

[0039] Next, move the welding assembly 51 and control it to weld the current workpiece j and workpiece i (column 7), and the current workpiece j and the current workpiece k. The design of the welding sequence is crucial. It is necessary to weld workpiece j and workpiece i first, and then weld workpiece j and workpiece k. This sequence arrangement helps to maintain the structural stability and avoid deformation or quality problems caused by improper welding sequence.

[0040] After completing the welding of a group of workpieces, the system needs to move the feeding mechanism 4 to make the next workpiece k close to the next workpiece j and repeat the above welding process until all workpieces are welded. This cyclic process reflects the high automation and continuous operation ability of the system. The entire process operates as a whole to ensure an efficient and continuous production process.

[0041] The application scenario of this method focuses on welding workpiece i (column 7), workpiece j (crossbeam 8), and workpiece k (connecting piece 9), aiming to achieve an efficient and precise welding process through an automated system.

[0042] This method uses a segmented positioning mechanism 2 and a support mechanism 3 to ensure that workpiece i, workpiece j, and workpiece k can be accurately placed in their predetermined positions and maintain the correct relative position relationship between each workpiece. This precise layout lays the foundation for subsequent high-quality welding.

[0043] During the welding process, the position fine-tuning part 44 drives the support plate 43 closer to the crossbeam 8 (workpiece j), so that one end of the current crossbeam 8 is in close contact with the current connecting piece 9 (workpiece k), and an appropriate force is applied to ensure the strength and stability of the welding point. At the same time, the firm contact between workpiece j and the column 7 (workpiece i) also helps to improve the welding quality.

[0044] The entire welding process is highly automated. From laying out the workpieces to finally completing the welding and transporting the assembly, no manual intervention is required. This not only significantly reduces labor costs but also greatly improves production efficiency.

[0045] The feeding mechanism 4 can quickly adjust its position to bring the next connecting piece 9 (workpiece k) closer to the output port 47 and accurately position it, facilitating continuous welding operations. This design allows the system to process a large number of workpieces at an extremely high speed, further enhancing the overall working efficiency.

[0046] This method can not only weld the column 7 and the crossbeam 8 but also perform high-quality welding on the crossbeam 8 and the connecting piece 9, meeting the welding requirements of complex structures. This is particularly important for manufacturing various types of stereoscopic warehouse shelves.

[0047] The design of the welding platform 11 allows it to flip 180 degrees after welding, enabling the welded assembly to fall naturally onto the transport mechanism 6, avoiding damage or safety accidents that may be caused by manual handling.

[0048] Since most operations are automated, the risk of workers directly contacting high-temperature welded parts is reduced, providing a safer working environment.

Claims

1. A three-dimensional warehouse shelf welding automation system, applied to the combined connection scenario of workpiece i, workpiece j, and workpiece k, characterized in that Including: A slewing mechanism, including a rotatable welding platform and a driving assembly drivingly connected to the welding platform; A segmented positioning mechanism disposed on the welding platform; the segmented positioning mechanism is configured to perform segmented positioning on a workpiece i along its length direction; N groups of supporting mechanisms, arranged in an array on the welding platform and located on one side of the segmented positioning mechanism; each group of supporting mechanisms is configured to support a group of workpieces j; A feeding mechanism disposed on the welding platform relative to the segmented positioning mechanism; the feeding mechanism is configured to accommodate workpieces k arranged in a stacked manner and feed the workpieces k sequentially; A welding mechanism disposed above the welding platform; The welding mechanism at least includes a welding assembly capable of multi-directional movement; the welding assembly is configured to sequentially weld one end of the workpiece i and the workpiece j, and weld the other end of the workpiece j and the workpiece k; A transportation mechanism disposed below the welding platform; the transportation mechanism at least includes a transportation surface with an adjustable inclination angle; the transportation mechanism is configured to transport a combination of the workpiece i, the workpiece j, and the workpiece k.

2. The automatic welding system for a three-dimensional warehouse shelf according to claim 1, wherein, The feeding mechanism includes: A linear motion module disposed on the welding platform along the length direction of the welding platform; A base drivingly connected to the linear motion module; A support plate, the bottom end of which is slidably connected to the welding platform; A position fine-tuning member connected to the base; the output end of the position fine-tuning member is connected to the support plate; A receiving bin, one end of which is connected to the support plate; installation blocks are respectively provided at the top end and the bottom end of the other end of the receiving bin; an output port is provided at an end of the receiving bin close to the installation block; the receiving bin is configured to accommodate stacked workpieces k; Auxiliary positioning components arranged vertically, respectively disposed on the installation blocks.

3. The automatic welding system for a three-dimensional warehouse shelf according to claim 2, wherein The auxiliary positioning component includes: A driving member disposed on the installation block; A positioning member drivingly connected to the driving member; the positioning member is configured to rotate under the drive of the driving member; The positioning member includes: a connecting portion, and a positioning portion integrally formed with the connecting portion and used for contacting the workpiece k.

4. The automatic welding system for a three-dimensional warehouse shelf according to claim 2, wherein A hollow hole is provided at the central position of the support plate; a pushing member is provided on the base; The output end of the pushing member passes through the hollow portion and contacts the workpiece k; the pushing member is configured to push the workpiece k to be fed as required.

5. The automatic welding system for a three-dimensional warehouse shelf according to claim 1, wherein, The transportation mechanism includes: A frame body disposed below the welding platform; A rotating frame disposed on the frame body and rotatably connected to the frame body at one end; A telescopic member installed on the side wall of the frame body and the output end of which is connected to the rotating frame; A roller transportation component disposed on the rotating frame.

6. The automatic welding system for a three-dimensional warehouse shelf according to claim 1, wherein The segmented positioning mechanism includes: Two groups of four-jaw chucks, respectively disposed on the welding platform, configured to position the end of the workpiece i; A power member disposed on the side of the four-jaw chuck and connected thereto, for driving the four-jaw chuck to move; Multiple groups of chucks disposed between the four-jaw chucks.

7. The automatic welding system for a three-dimensional warehouse shelf as claimed in claim 1, wherein the support mechanism includes at least two sets of support frames; a hollow portion is formed on the top surface of each support frame in the downward direction.

8. The automatic welding system for a three-dimensional warehouse shelf according to claim 1, wherein, The driving assembly includes: two side frames disposed on both sides of the welding platform; rotating discs with the same number as the side frames, disposed on the side frames; a rotary frame body, with its two ends respectively connected to the rotating discs; the welding platform is installed on the rotary frame body.

9. The automatic welding system for a three-dimensional warehouse shelf as claimed in claim 1, wherein the welding mechanism further includes: a three-way motion assembly, and a six-axis robotic arm connected to the three-way motion assembly; the output end of the six-axis robotic arm is connected to the welding assembly.

10. A method for automatic welding of a three-dimensional warehouse shelf, based on an automatic welding system for a three-dimensional warehouse shelf according to any one of claims 1 to 9, characterized in that, It includes the following steps: Step 1, workpiece layout: Place workpiece i in the segmented positioning mechanism, place N groups of workpiece j on the support mechanism respectively, and set one end of each workpiece j to abut against workpiece i; Place multiple groups of workpiece j in the feeding mechanism in a stacked manner; Step 2, workpiece welding: Adjust the position of the feeding mechanism so that the current workpiece k closest to the output port in the feeding mechanism abuts against the other end of the current workpiece j, and there is a force between the current workpiece k and the current workpiece j; Move the welding assembly and control the welding assembly to weld the current workpiece j and workpiece i, and the current workpiece j and the current workpiece j; After welding is completed, move the feeding mechanism to make the next workpiece k abut against the next workpiece j, then move the welding assembly and weld the next workpiece j and workpiece i, and the next workpiece j and the next workpiece k. Repeat the above steps until all workpiece j are connected to workpiece i and all workpiece k are connected to workpiece j, obtaining an assembled part; Step 3, workpiece transportation: Rotate the welding platform to make the assembled part fall onto the transportation mechanism, and the transportation mechanism transports the assembled part to the corresponding position.

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