Conveyor idler support robot welding production line

Abstract

The present application relates to conveyor roller support robot welding production line, belongs to the technical field of welding equipment. Including: material transfer module, including multi-station storage positioner, handling robot and storage support, wherein, the multi-station storage positioner and the storage support are located at the opposite sides of the handling robot respectively, the multi-station storage positioner is used for storing small size workpieces such as flat steel, middle strut and side strut, and the storage support is used for storing large size workpieces such as angle steel;Welding module, including rotary positioner and welding robot, wherein, the rotary positioner is arranged on the side adjacent to the multi-station storage positioner or the storage support of the handling robot, and the welding robot is located on the side of the rotary positioner relative to the handling robot. Through the present application, the problem of low efficiency and low precision of manual welding in the prior art is solved.

Description

Technical Field

[0001] This invention relates to a robotic welding production line for conveyor roller brackets, belonging to the technical field of welding equipment. Background Technology

[0002] The structure of a trough-type idler mainly consists of the idler roller and the idler support, and it is an important component of a belt conveyor. The idler support is primarily composed of flat steel, angle steel, a central support, and side supports. The idler roller is mounted on the idler support.

[0003] In the past, manual welding of idler roller brackets was commonly used, which was a heavy workload for workers. However, the requirements for welding precision and speed in structural components are becoming increasingly demanding, making it difficult for ordinary workers to perform the task. In addition, the electric arc, sparks, and fumes produced during welding can cause harm to the human body. The complexity of welding manufacturing processes, labor intensity, product quality, and batch requirements make manual welding methods unsuitable.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a robotic welding production line for conveyor roller brackets, which solves the problems of low efficiency and low precision of manual welding in the prior art.

[0006] The technical problem to be solved by this invention is achieved by the following technical solution: A robotic welding production line for conveyor roller brackets, including: The material transfer module includes a multi-station storage positioner, a handling robot, and a storage rack. The multi-station storage positioner and the storage rack are located on opposite sides of the handling robot. The multi-station storage positioner is used to store small workpieces such as flat steel, central support columns, and side support columns, while the storage rack is used to store large workpieces such as angle steel. A welding module includes a rotary positioner and a welding robot, wherein the rotary positioner is disposed on one side of the transport robot adjacent to the multi-station storage positioner or storage bracket, and the welding robot is located on the side of the rotary positioner opposite to the transport robot. The rotary positioner includes a rotary drive base, a rotary frame disposed at the top drive end of the rotary drive base, and a first tooling and a second tooling respectively disposed on both sides of the rotary frame relative to the rotary drive base. The rotation axis of the rotary drive base is vertically arranged.

[0007] The present invention is further configured such that: the first tooling includes a first crossbeam rotatably supported on the slewing frame, a first rotary motor fixedly installed on the slewing frame and connected to the first crossbeam, and a first tooling module disposed on the first crossbeam; the second tooling includes a second crossbeam rotatably supported on the slewing frame, a second rotary motor fixedly installed on the slewing frame and connected to the second crossbeam, and a second tooling module disposed on the second crossbeam; the rotation axes of the first crossbeam and the second crossbeam are horizontally arranged and parallel to each other.

[0008] The present invention is further configured such that: the multi-station material storage positioner includes a base, an annular support seat fixedly connected to the top surface of the base by a plurality of columns, a rotary table rotatably supported on the top surface of the annular support seat, a drive shaft connected to the bottom surface of the rotary table, and a drive motor fixedly installed on the bottom surface of the drive shaft and connected to the drive shaft.

[0009] The present invention is further configured such that: a plurality of storage mechanisms are evenly distributed around the rotation axis of the rotary table, the storage mechanism including a mounting plate fixedly installed on the rotary table, a tray disposed above the mounting plate, and a screw jack fixedly installed on the bottom surface of the mounting plate, the drive end of the screw jack being connected to a device that passes through the mounting plate and is connected to the tray.

[0010] The present invention is further configured such that: the material transfer module further includes a finished product transfer frame disposed on the side of the handling robot relative to the rotary positioner.

[0011] The invention is further configured such that: the welding module is externally irradiated with a semi-enclosed dust removal chamber, one side of the semi-enclosed dust removal chamber is open, one side of the rotary positioner extends to the outside of the semi-enclosed dust removal chamber, the welding robot is located inside the semi-enclosed dust removal chamber, and a dust removal system is connected to the top of the semi-enclosed dust removal chamber.

[0012] The present invention is further configured such that: the storage support includes a horizontally arranged rectangular frame, legs fixedly connected to the four corners of the bottom surface of the rectangular frame, and a limiting member disposed at the top of the rectangular frame; The limiting component includes a support rod fixedly connected to the top surface of the rectangular frame along the length direction of the rectangular frame, a plurality of fixed rods and a plurality of movable rods disposed on the top surface of the support rod, the plurality of fixed rods and the plurality of movable rods being arranged alternately along the length direction of the support rod and all being vertically arranged, the support rod being hollow, and a plurality of sliding rods corresponding one-to-one with the movable rods being slidably connected inside the support rod, the top surface of the support rod being provided with a plurality of long grooves corresponding one-to-one with the sliding rods, the movable rods passing through the long grooves one-to-one with each sliding rod and being fixedly connected to the sliding rods, and a plurality of positioning rods corresponding one-to-one with each group of movable rods and fixed rods being fixedly connected to one end of the rectangular frame, one-to-one with each group of movable rods and fixed rods.

[0013] The present invention is further configured such that: each tray is provided with several sets of baffles, each set of baffles is arranged linearly and is set vertically, and the workpieces are stacked between two adjacent baffles in each set.

[0014] The present invention is further configured such that: the surfaces of the fixed rod, the moving rod, and the stop rod that abut against the workpiece are all provided with limiting members; the fixed rod, the moving rod, and the stop rod are all hollow and have an internal mounting cavity; the limiting members include a plurality of locking blocks and a plurality of supporting members disposed in the mounting cavity; the plurality of locking blocks are evenly arranged in the vertical direction and correspond one-to-one with two adjacent workpieces in the vertical direction; the plurality of supporting members are evenly arranged in the vertical direction and correspond one-to-one with the workpieces; and the plurality of locking blocks and the plurality of supporting members are arranged alternately in the vertical direction. The support includes a fixed plate horizontally fixed to the inner wall of the mounting cavity and a sliding sleeve passing through the fixed plate vertically. The surfaces of the fixed rod, the moving rod, and the stop rod that abut against the workpiece are all provided with a plurality of through slots corresponding one-to-one with the locking block. The thickness of the locking block gradually decreases in the vertical direction and extends out of the through slot at the end of the locking block located away from the mounting cavity. The upper and lower sides of the end of the locking block located in the mounting cavity are respectively hinged to the first connecting rods arranged symmetrically. The ends of the first connecting rods away from the locking block are each hinged to the second connecting rods that are slidably connected to the sliding sleeve. The inner walls of the sliding sleeve are respectively fixedly connected to the two ends of the sliding sleeve. The end of the second connecting rod located in the sliding sleeve is fixedly connected to the second limiting ring. A tension spring sleeved on the second connecting rod is fixedly connected between the first limiting ring and the second limiting ring. When the end of the locking block is flush with the opening end of the through groove, the locking block drives the second connecting rods on its upper and lower sides to abut against the second connecting rods located in the same sliding sleeve.

[0015] The present invention is further configured such that: the inner wall of the mounting cavity corresponding to the card block is fixedly connected with a horizontally arranged guide strip, and guide grooves slidably connected to the guide strip are respectively opened on both sides of the card block; The card block is arrow-shaped with its center line horizontal. The tip of the card block extends out of the through slot and has rounded corners. The angle at the tip of the card block is 30°-50°.

[0016] The beneficial effects of this invention are: By setting up a material transfer module and a welding module in conjunction, during the welding process of the idler roller bracket, the handling robot picks up the workpiece from the multi-station storage positioner and the storage bracket, and places it on the first fixture of the rotary positioner in the assembly sequence. The first fixture of the rotary positioner positions and clamps the workpiece. The rotary positioner rotates and moves the first fixture back to the side of the welding robot. The welding robot welds the workpiece on the first fixture. At the same time, the handling robot picks up the workpiece and places it on the second fixture of the rotary positioner. The second fixture positions and clamps the workpiece. After the welding robot finishes welding the workpiece on the first fixture, the rotary positioner rotates horizontally, and the handling robot picks up the finished workpiece and places it on the finished product transfer rack for easy transportation by the staff. The whole work process realizes automated and efficient welding, reduces the labor intensity of the staff, and improves the accuracy of the finished product by welding with the welding robot. The first tooling and the second tooling are respectively equipped with the first crossbeam and the first rotary motor, and the second crossbeam and the second rotary motor, respectively, in conjunction with the welding robot to achieve multi-axis linkage operation, thereby making the welding efficiency higher and the welding position more comprehensive. By setting up several storage mechanisms on the multi-station storage positioner, in conjunction with the turntable, pallet, and screw jack, when the handling robot grabs parts, the multi-station storage positioner can drive the turntable to rotate horizontally via the drive motor and lift the pallet via the screw jack, thereby cooperating with the handling robot to grab workpieces at different angles and heights. Through this linkage operation, the handling robot becomes more efficient.

[0017] During the welding process, the welding robot is placed in a semi-enclosed dust removal chamber. The dust generated during welding is purified by filters in the dust removal system, ensuring a clean production environment. The welding robot uses high-precision sensors and a control system to precisely control the welding process, improving welding quality. Within the semi-enclosed dust removal chamber, the welding robot can operate continuously and stably, reducing failure rates and maintenance costs. By setting limiting components on the rectangular frame and cooperating with support rods and sliding rods, the gap between the moving rod and the fixed rod can be easily adjusted to position and stack workpieces of different sizes, making it more widely applicable. By setting limiting components on the fixed rod, moving rod, and stop rod, when stacking workpieces, each workpiece is placed one by one between the fixed rod and moving rod, or between two adjacent stop rods. At this time, the workpiece abuts against the inclined surface of the clamping block, allowing the clamping block to retract into the through slot one by one, so that the workpiece can be smoothly placed in. When the handling robot grabs a workpiece, if it grabs a single workpiece, under the guidance of the inclined surface of the clamping block, the clamping blocks that the workpiece passes through can retract into the through slot one by one, so that the workpiece can be smoothly removed. If the gripping depth of the handling robot is too large, resulting in grabbing two workpieces at once, the two workpieces need to drive the two adjacent clamping blocks to retract at once. However, the space in the sliding sleeve for the two second connecting rods to move is insufficient, so that the two clamping blocks cannot retract completely, thus preventing the two workpieces from being removed at once. After receiving force feedback, the handling robot readjusts the gripping depth and removes the top layer of workpieces, avoiding the situation where the entire idler roller bracket is scrapped due to welding errors. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the multi-station material storage positioner in this invention.

[0020] Figure 3 This is a schematic diagram of the material storage support portion of the present invention.

[0021] Figure 4 This is a schematic diagram of the workpiece in the clamping state in this invention.

[0022] Figure 5 yes Figure 4 A magnified view of part A in the middle.

[0023] Figure 6 This is a schematic diagram of the rotary positioner part of the present invention.

[0024] Figure 7 This is a schematic diagram of the semi-enclosed dust removal room in this invention.

[0025] In the diagram: 1. Material transfer module; 2. Welding module; 3. Multi-station storage positioner; 4. Handling robot; 5. Storage bracket; 6. Finished product transfer rack; 7. Flat steel; 8. Central support column; 9. Side support column; 10. Angle steel; 11. Base; 12. Circular support seat; 13. Turntable; 14. Drive shaft; 15. Storage mechanism; 16. Mounting plate; 17. Pallet; 18. Stop bar; 19. Rectangular frame; 20. Support leg; 21. Limiting component; 22. Support rod; 23. Fixed rod; 24. Moving rod; 25. Sliding rod; 26. Long slot; 27. Positioning rod; 28. Limiting component; 29. ​​Mounting cavity; 30. Locking device. 31. Block; 32. Support component; 33. Guide belt; 34. Guide groove; 35. Fixing plate; 36. Sliding sleeve; 37. Through groove; 38. First connecting rod; 39. Second connecting rod; 40. First limiting ring; 41. Second limiting ring; 42. Tension spring; 43. Rotary positioner; 44. Welding robot; 45. Rotary drive seat; 46. Rotary frame; 47. First tooling; 48. Second tooling; 49. First crossbeam; 50. First rotary motor; 51. First tooling module; 52. Second crossbeam; 53. Second rotary motor; 54. Second tooling module; 55. Semi-enclosed dust removal room; 56. Dust removal system. Detailed Implementation

[0026] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific illustrations.

[0027] like Figures 1-7 As shown, the conveyor roller bracket robotic welding production line includes a material transfer module 1 and a welding module 2. The material transfer module 1 is used for loading and unloading various workpieces, while the welding module 2 is used for clamping and positioning the workpieces with tooling and for welding.

[0028] The material transfer module 1 includes a multi-station storage positioner 3, a handling robot 4, a storage rack 5, and a finished product transfer rack 6.

[0029] Among them, the multi-station storage positioner 3 and the storage bracket 5 are located on opposite sides of the handling robot 4, and the finished product transfer frame 6 and the welding module 2 are located on the other opposite sides of the handling robot 4. The multi-station storage positioner 3 is used to store small-sized workpieces such as flat steel 7, middle support column 8 and side support column 9, and the storage bracket 5 is used to store large-sized workpieces such as angle steel 10.

[0030] The multi-station material storage positioner 3 includes a base 11, an annular support seat 12 fixedly connected to the top surface of the base 11 by several columns, a rotary disk 13 rotatably supported on the top surface of the annular support seat 12, a drive shaft 14 connected to the bottom surface of the rotary disk 13, and a drive motor (not shown in the figure) fixedly installed on the bottom surface of the drive shaft 14 and connected to the drive shaft 14.

[0031] A plurality of storage mechanisms 15 are evenly distributed around the rotation axis of the rotary table 13, preferably in eight groups. Each storage mechanism 15 includes a mounting plate 16 fixedly mounted on the rotary table 13, a tray 17 disposed above the mounting plate 16, and a screw jack (not shown in the figure) fixedly mounted on the bottom surface of the mounting plate 16. The screw jack is inverted and mounted on the bottom surface of the mounting plate, and its drive end is connected to the tray 17 through the mounting plate 16. Each tray 17 is provided with a plurality of stops 18, each set of stops 18 is arranged linearly and is vertically positioned, and the space between two adjacent stops 18 in each set is used for stacking workpieces.

[0032] By setting several storage mechanisms 15 on the multi-station storage positioner 3, and with the cooperation of the turntable, pallet 17 and screw jack, when the handling robot 4 grabs parts, the multi-station storage positioner 3 can rotate the turntable 13 horizontally through the drive motor and lift the pallet 17 through the screw jack, thereby cooperating with the handling robot 4 to grab workpieces at different angles and heights. Through the linkage operation, the handling robot 4 becomes more efficient.

[0033] The storage support 5 includes a horizontally arranged rectangular frame 19, support legs 20 fixedly connected to the four corners of the bottom surface of the rectangular frame 19, and a limiting member 21 set on the top of the rectangular frame 19. The limiting member 21 includes a support rod 22 fixedly connected to the top surface of the rectangular frame 19 along the length direction of the rectangular frame 19, a plurality of fixed rods 23 and a plurality of movable rods 24 set on the top surface of the support rod 22. The plurality of fixed rods 23 and the plurality of movable rods 24 are arranged alternately along the length direction of the support rod 22 and are all vertically arranged. The support rod 22 is hollow. A plurality of sliding rods 25 corresponding to the movable rods 24 are slidably connected inside the support rod 22. A plurality of long grooves 26 corresponding to the sliding rods 25 are opened on the top surface of the support rod 22. The movable rods 24 pass through the long grooves 26 and are fixedly connected to the sliding rods 25. A plurality of positioning rods 27 corresponding to each group of movable rods 24 and fixed rods 23 are fixedly connected to one end of the rectangular frame 19.

[0034] By setting a limiting member 21 on the rectangular frame 19 and cooperating with the support rod 22 and the slide rod 25, it is easy to adjust the gap between the moving rod 24 and the fixed rod 23 to position and stack workpieces of different sizes, thus making it more widely applicable.

[0035] The surfaces of the fixed rod 23, the movable rod 24, and the stop rod 18 that abut against the workpiece are all provided with limiting members 28. The fixed rod 23, the movable rod 24, and the stop rod 18 are all hollow and have an internal mounting cavity 29. The limiting member 28 includes several locking blocks 30 and several supporting members 31 disposed in the mounting cavity 29. The locking blocks 30 are evenly arranged in the vertical direction and correspond one-to-one with two adjacent workpieces in the vertical direction. The supporting members 31 are evenly arranged in the vertical direction and correspond one-to-one with the workpieces. The locking blocks 30 and the supporting members 31 are arranged alternately in the vertical direction. The inner walls of the mounting cavity 29 corresponding to the locking blocks 30 are all fixedly connected with horizontally arranged guide strips 32. Guide grooves 33 that are slidably connected to the guide strips 32 are respectively opened on both sides of the locking blocks 30.

[0036] The support member 31 includes a fixed plate 34 that is horizontally fixed to the inner wall of the mounting cavity 29, and a sliding sleeve 35 that passes through the fixed plate 34 in the vertical direction. The fixed rod 23, the moving rod 24 and the stop rod 18 are all provided with a plurality of through slots 36 that correspond one-to-one with the locking block 30 on their surfaces for contacting the workpiece. The end of the locking block 30 away from the mounting cavity 29 has a gradually decreasing thickness in the vertical direction and extends out of the through slot 36. The locking block 30 is arrow-shaped and its center line is horizontal. The tip of the locking block 30 extends out of the through slot 36 and has a rounded corner. The angle at the tip of the locking block 30 is 30°-50°, preferably 40°.

[0037] The locking block 30, located within the mounting cavity 29, has symmetrically arranged first connecting rods 37 hinged to its upper and lower sides. The ends of the first connecting rods 37 furthest from the locking block 30 are each hinged to a second connecting rod 38 slidably connected within a sliding sleeve 35. First limiting rings 39 are fixedly connected to both ends of the inner wall of the sliding sleeve 35. A second limiting ring 40 is fixedly connected to the end of the second connecting rod 38 within the sliding sleeve 35. A tension spring 41, sleeved on the second connecting rod 38, is fixedly connected between the first limiting ring 39 and the second limiting ring 40. When the end of the locking block 30 is flush with the opening end of the through groove 36, the locking block 30 drives the second connecting rods 38 connected to its upper and lower sides to abut against the second connecting rods 38 located within the same sliding sleeve 35.

[0038] When stacking workpieces, each workpiece is placed between the fixed rod 23 and the moving rod 24, or between two adjacent stop rods 18. At this time, the workpieces collide with the inclined surface of the clamping block 30, allowing the clamping block 30 to retract into the through slot 36 one by one, so that the workpieces can be smoothly placed in. When the handling robot 4 grabs a workpiece, if it grabs a single workpiece, under the guidance of the inclined surface of the clamping block 30, the clamping blocks 30 that the workpiece passes through can retract into the through slot 36 one by one, so that the workpiece can be smoothly taken out. If the gripping depth of the handling robot 4 is too large, resulting in grabbing two workpieces at once, then because the two workpieces need to drive the two adjacent clamping blocks 30 to retract at once, and the space in the sliding sleeve 35 for the two second connecting rods 38 to move is insufficient, the two clamping blocks 30 cannot retract completely, thus preventing the two workpieces from being taken out at once. After receiving force feedback, the handling robot 4 readjusts the gripping depth and takes out the top layer of workpieces, avoiding the situation where the entire idler roller bracket is scrapped due to welding errors.

[0039] The welding module 2 includes a rotary positioner 42 and a welding robot 43. Both the welding robot 43 and the handling robot 4 are preferably FANUC robots. The rotary positioner 42 is located on the side of the handling robot 4 adjacent to the multi-station storage positioner 3 or the storage rack 5, that is, the rotary positioner 42 is located on the side of the handling robot 4 relative to the finished product transfer rack 6. The welding robot 43 is located on the side of the rotary positioner 42 relative to the handling robot 4.

[0040] The rotary positioner 42 includes a rotary drive base 44, a rotary frame 45 disposed at the top drive end of the rotary drive base 44, and a first tooling 46 and a second tooling 47 respectively disposed on both sides of the rotary frame 45 relative to the rotary drive base 44. The rotation axis of the rotary drive base 44 is vertically arranged.

[0041] The first tooling 46 includes a first crossbeam 48 rotatably supported on a rotary frame 45, a first rotary motor 49 fixedly installed on the rotary frame 45 and connected to the first crossbeam 48, and a first tooling module 50 disposed on the first crossbeam 48. The second tooling 47 includes a second crossbeam 51 rotatably supported on a rotary frame 45, a second rotary motor 52 fixedly installed on the rotary frame 45 and connected to the second crossbeam 51, and a second tooling module 53 disposed on the second crossbeam 51. The rotation axes of the first crossbeam 48 and the second crossbeam 51 are horizontally arranged and parallel to each other. Both the first tooling module 50 and the second tooling module 53 clamp the workpiece by using pressure blocks and cylinders adapted to different specifications and shapes.

[0042] The first tooling 46 and the second tooling 47 are respectively equipped with the first crossbeam 48 and the first rotary motor 49, and the second crossbeam 51 and the second rotary motor 52, respectively, in conjunction with the welding robot 43, so as to realize the multi-axis linkage operation, which makes the welding efficiency higher and the welding position more comprehensive.

[0043] The welding module 2 is exposed to a semi-enclosed dust removal chamber 54. One side of the semi-enclosed dust removal chamber 54 is open, and one side of the rotary positioner 42 extends to the outside of the semi-enclosed dust removal chamber 54. The welding robot 43 is located inside the semi-enclosed dust removal chamber 54, and a dust removal system 55 is connected to the top of the semi-enclosed dust removal chamber 54.

[0044] The welding robot 43 is placed inside a semi-enclosed dust collection chamber 54. The fumes generated during welding are purified by the filter element in the dust collection system 55, ensuring the cleanliness of the production environment. The welding robot 43 uses high-precision sensors and a control system, which can accurately control the welding process and improve welding quality. Inside the semi-enclosed dust collection chamber 54, the welding robot 43 can work continuously and stably, reducing the failure rate and maintenance costs.

[0045] The implementation principle of this invention is as follows: During the welding process of the idler roller bracket, the handling robot 4 picks up the workpiece from the multi-station storage positioner 3 and the storage bracket 5, and places it on the first fixture 46 of the rotary positioner 42 in the assembly sequence. The first fixture 46 of the rotary positioner 42 positions and clamps the workpiece. The rotary positioner 42 rotates, turning the first fixture 46 to one side of the welding robot 43. The welding robot 43 welds the workpiece on the first fixture 46. At the same time, the handling robot 4 picks up the workpiece and places it on the second fixture 47 of the rotary positioner 42. The second fixture 47 positions and clamps the workpiece. After the welding robot 43 finishes welding the workpiece on the first fixture 46, the rotary positioner 42 rotates horizontally, and the handling robot 4 picks up the finished workpiece and places it on the finished product transfer rack 6 for easy transportation by the staff. The whole process realizes automated and efficient welding, reduces the labor intensity of the staff, and improves the accuracy of the finished product by welding by the welding robot 43.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A robotic welding production line for conveyor roller brackets, characterized in that, include: The material transfer module (1) includes a multi-station storage positioner (3), a handling robot (4) and a storage rack (5), wherein the multi-station storage positioner (3) and the storage rack (5) are located on opposite sides of the handling robot (4), the multi-station storage positioner (3) is used to store flat steel (7), central support column (8) and side support column (9), and the storage rack (5) is used to store angle steel (10); The welding module (2) includes a rotary positioner (42) and a welding robot (43), wherein the rotary positioner (42) is disposed on the side of the transport robot (4) adjacent to the multi-station storage positioner (3) or the storage bracket (5), and the welding robot (43) is located on the side of the rotary positioner (42) relative to the transport robot (4). The rotary positioner (42) includes a rotary drive base (44), a rotary frame (45) disposed at the top drive end of the rotary drive base (44), a first tooling (46) and a second tooling (47) respectively disposed on both sides of the rotary frame (45) relative to the rotary drive base (44), and the rotation axis of the rotary drive base (44) is vertically arranged. The storage support (5) includes a horizontally arranged rectangular frame (19), legs (20) fixedly connected to the four corners of the bottom surface of the rectangular frame (19), and a limiting member (21) set on the top of the rectangular frame (19); The limiting member (21) includes a support rod (22) fixedly connected to the top surface of the rectangular frame (19) along the length direction of the rectangular frame (19), a plurality of fixed rods (23) and a plurality of movable rods (24) disposed on the top surface of the support rod (22); The fixed rod (23) and the moving rod (24) are both provided with limiting members (28) on the surfaces of the workpieces. The fixed rod (23) and the moving rod (24) are both hollow and have an installation cavity (29) inside. The limiting member (28) includes a plurality of locking blocks (30) and a plurality of supporting members (31) disposed in the installation cavity (29). The plurality of locking blocks (30) are evenly arranged in the vertical direction and correspond one-to-one with two adjacent workpieces in the vertical direction. The plurality of supporting members (31) are evenly arranged in the vertical direction and correspond one-to-one with the workpieces. The plurality of locking blocks (30) and the plurality of supporting members (31) are arranged alternately in the vertical direction. The support member (31) includes a fixed plate (34) horizontally fixed to the inner wall of the mounting cavity (29) and a sliding sleeve (35) vertically passing through the fixed plate (34). The surfaces of the fixed rod (23) and the moving rod (24) that abut against the workpiece are provided with several through slots (36) corresponding to the locking block (30). The end of the locking block (30) away from the mounting cavity (29) has a gradually decreasing thickness in the vertical direction and extends out of the through slot (36). The upper and lower sides of the end of the locking block (30) located inside the mounting cavity (29) are respectively hinged with… A first connecting rod (37) is symmetrically arranged. The end of the first connecting rod (37) away from the locking block (30) is hinged to a second connecting rod (38) that is slidably connected inside the sliding sleeve (35). The two ends of the inner wall of the sliding sleeve (35) are respectively fixedly connected to a first limiting ring (39). The end of the second connecting rod (38) located inside the sliding sleeve (35) is fixedly connected to a second limiting ring (40). A tension spring (41) sleeved on the second connecting rod (38) is fixedly connected between the first limiting ring (39) and the second limiting ring (40). When the end of the locking block (30) is flush with the opening end of the through groove (36), the locking block (30) drives the second connecting rods (38) on the upper and lower sides connected to it to abut against the second connecting rods (38) located in the same sliding sleeve (35); The inner wall of the mounting cavity (29) corresponding to the card block (30) is fixedly connected with a horizontally arranged guide strip (32), and the card block (30) is provided with guide grooves (33) slidably connected to the guide strip (32) on both sides; The card block (30) is arrow-shaped and its center line is horizontal. The tip of the card block (30) extends out of the through groove (36) and has rounded corners. The angle at the tip of the card block (30) is 30°-50°.

2. The conveyor roller bracket robotic welding production line according to claim 1, characterized in that: The first tooling (46) includes a first crossbeam (48) rotatably supported on the rotary frame (45), a first rotary motor (49) fixedly installed on the rotary frame (45) and connected to the first crossbeam (48), and a first tooling module (50) disposed on the first crossbeam (48). The second tooling (47) includes a second crossbeam (51) rotatably supported on the rotary frame (45), a second rotary motor (52) fixedly installed on the rotary frame (45) and connected to the second crossbeam (51), and a second tooling module (53) disposed on the second crossbeam (51). The rotation axes of the first crossbeam (48) and the second crossbeam (51) are horizontally arranged and parallel to each other.

3. The conveyor roller bracket robotic welding production line according to claim 2, characterized in that: The multi-station material storage positioner (3) includes a base (11), an annular support seat (12) fixedly connected to the top surface of the base (11) by several columns, a rotary disk (13) rotatably supported on the top surface of the annular support seat (12), a drive shaft (14) connected to the bottom surface of the rotary disk (13), and a drive motor fixedly installed on the bottom surface of the drive shaft (14) and connected to the drive shaft (14).

4. The conveyor roller bracket robotic welding production line according to claim 3, characterized in that: The rotary table (13) has several storage mechanisms (15) evenly distributed around its rotation axis. Each storage mechanism (15) includes a mounting plate (16) fixedly installed on the rotary table (13), a tray (17) set above the mounting plate (16), and a screw jack fixedly installed on the bottom surface of the mounting plate (16). The drive end of the screw jack is connected to the mounting plate (16) and to the tray (17).

5. The conveyor roller bracket robotic welding production line according to claim 1, characterized in that: The material transfer module (1) also includes a finished product transfer frame (6) disposed on the side of the handling robot (4) relative to the rotary positioner (42).

6. The conveyor roller bracket robotic welding production line according to claim 1, characterized in that: The welding module (2) is exposed to a semi-enclosed dust removal chamber (54). One side of the semi-enclosed dust removal chamber (54) is open. One side of the rotary positioner (42) extends to the outside of the semi-enclosed dust removal chamber (54). The welding robot (43) is located inside the semi-enclosed dust removal chamber (54). A dust removal system (55) is connected to the top of the semi-enclosed dust removal chamber (54).

7. The conveyor roller bracket robotic welding production line according to claim 4, characterized in that: Several fixed rods (23) and several movable rods (24) are arranged alternately along the length of the support rod (22) and are all vertically arranged. The support rod (22) is hollow. Several sliding rods (25) corresponding to the movable rods (24) are slidably connected inside the support rod (22). Several long grooves (26) corresponding to the sliding rods (25) are opened on the top surface of the support rod (22). The movable rods (24) pass through the long grooves (26) and are fixedly connected to the sliding rods (25). Several positioning rods (27) corresponding to each group of movable rods (24) and fixed rods (23) are fixedly connected to one end of the rectangular frame (19).

8. The conveyor roller bracket robotic welding production line according to claim 4, characterized in that: Each tray (17) is provided with several sets of baffles (18). Each set of baffles (18) is arranged linearly and is set vertically. The workpieces are stacked between two adjacent baffles (18) in each set.

9. The conveyor roller bracket robotic welding production line according to claim 8, characterized in that: The stop bar (18) is also provided with a limiting member (28) on the surface of the workpiece. The stop bar (18) is also hollow and has an internal mounting cavity (29). The surface of the stop bar (18) that is used to abut the workpiece is also provided with several through slots (36) that correspond one-to-one with the locking block (30).

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