Automatic welding production line for structural parts

Abstract

The invention discloses an automatic welding production line for structural parts, which comprises a prefabricated assembly part comprising an automatic prefabricated part and an automatic assembly part, and the automatic prefabricated part is used for assembling and riveting a plurality of parts into parts on the ground at one end of the production line; the automatic assembling part is correspondingly arranged on the ground on the right side of the automatic prefabricated part, and the multiple parts are automatically assembled and riveted into a product structural part; the automatic welding part is used for carrying out full welding operation on the product structural parts conveyed by the automatic assembling part; the repair welding, grinding and shape correcting part comprises a repair welding and grinding part and a shape correcting off-line part, and the repair welding and grinding part is correspondingly arranged on the ground on the right side of the automatic welding part and used for bearing the product structural part transferred by the automatic welding part and conducting manual repair welding and grinding on the product structural part. The method is high in automation degree, simple in production process, high in production efficiency, low in production cost, high in product quality and stable in production quality.

Description

Technical Field

[0001] The present invention relates to the technical field of structural component processing equipment, and more specifically, to an automatic welding production line for structural components. Background Art

[0002] With the improvement of information technology, the production of large structural parts is being driven towards automation and intelligence. The production of large structural parts generally has the characteristics of long processing cycle, diverse processing technology, heavy weight of structural parts, and high processing difficulty. The production process involves many links, high resource guarantee requirements, and difficult production process control of the production line. At present, the production process of large structural parts is still mainly manual processing. Due to the lack of automated production lines, the production efficiency of structural parts is very low, the production process requires a large amount of labor, the labor intensity of personnel is high, the production cost is high, and the quality of mass production is unstable. Summary of the invention

[0003] In order to overcome the above defects, the present invention provides an automatic welding production line for structural parts, which specifically adopts the following technical solutions:

[0004] An automatic welding production line for structural parts, comprising:

[0005] A prefabricated assembly part is arranged on the ground at one end of the production line, and the prefabricated assembly part includes an automatic prefabricated part and an automatic assembly part. The automatic prefabricated part assembles and rivets a plurality of parts into components on the ground at one end of the production line; the automatic assembly part is arranged on the ground to the right of the automatic prefabricated part, and automatically assembles and rivets a plurality of the components into product structural parts;

[0006] An automatic welding part, which is correspondingly arranged on the ground on the right side of the automatic assembly part, performs full welding operation on the product structural parts conveyed by the automatic assembly part;

[0007] The repair welding, grinding and shaping parts are arranged on the ground on the right side of the automatic welding parts, and the repair welding, grinding and shaping parts include repair welding and grinding parts and shaping offline parts. The repair welding and grinding parts are arranged on the ground on the right side of the automatic welding parts, and are used to receive the product structural parts transferred from the automatic welding parts, and manually repair welding and grinding the product structural parts; the shaping offline parts are arranged on the ground on the right side of the repair welding and grinding parts, and are used to receive the product structural parts transferred from the repair welding and grinding parts, and take the product structural parts off the line after production is completed.

[0008] Preferably, the automatic prefabricated parts include a first group of robots, a parts assembly tool and a first welding robot. The first group of robots is correspondingly arranged at one end of the ground of the production line, and is used to transfer the parts on the first incoming material tray arranged next to it to the parts assembly tool one by one in a predetermined order; the parts assembly tool is correspondingly arranged on the ground next to the first group of robots, and is used to splice the transferred multiple parts to form parts; the first welding robot is correspondingly arranged on the ground next to the parts assembly tool, performs riveting and welding operations on the parts, and transfers the riveted and welded parts to the first unloading table for standby use through the first group of robots.

[0009] Preferably, the automatic assembly parts include a second group robot, an automatic assembly tool, a second welding robot and a transfer part. The second group robot is correspondingly arranged on the ground on the right side of the first group robot, and is used to grab and transfer the parts on the second incoming material tray and the parts on the first unloading table arranged next to it to the predetermined positions of the automatic assembly tool in a predetermined order; the automatic assembly tool is correspondingly arranged on the ground next to the second group robot, and is used to assemble and splice multiple parts into product structural parts; the second welding robot is correspondingly arranged on the ground next to the automatic assembly tool, and is used to rivet and weld the product structural parts; the transfer part is correspondingly arranged on the ground next to the second group robot, and is used to transfer the product structural parts grabbed and transferred by the second group robot to the next process.

[0010] Preferably, the transfer member includes a transfer mechanism and a first conveyor roller. The transfer mechanism is on the ground next to the second welding robot, and is used to receive the product structure parts completed by riveting and welding and transferred by the second group of robots, and transfer the product structure parts to the corresponding first conveyor roller to transfer the product structure parts to the next process.

[0011] Preferably, the automatic welding part includes a secondary centering platform, a handling robot, a welding positioner and a second conveyor roller. The secondary centering platform is correspondingly arranged on the ground next to the first conveyor roller, the handling robot is correspondingly arranged on the ground next to the secondary centering platform, the second conveyor roller is correspondingly arranged on the ground next to the handling robot, and the welding positioner is correspondingly arranged on the ground next to the second conveyor roller; the handling robot grabs the product structural parts conveyed on the first conveyor roller and transfers them to the secondary centering platform for secondary positioning; the product structural parts that have been secondary positioned are grabbed by the handling robot and transferred to the welding positioner for clamping and position shifting welding.

[0012] Preferably, the welding positioner includes a welding positioner and a third welding robot. The welding positioner is correspondingly arranged on the ground next to the second conveyor roller, and the third welding robot is correspondingly arranged on the ground next to the welding positioner, and is used to perform full welding operations on the product structural parts transferred to the welding positioner.

[0013] Preferably, the repair welding and grinding parts include a transfer selection part and a repair welding displacement part. The transfer selection part is correspondingly arranged on the ground on the right side of the automatic welding part, and is used to receive the product structural parts transferred from the automatic welding part. Two sets of the repair welding displacement parts are arranged parallel to each other on the ground on the right side of the transfer selection part, and are used to receive the product structural parts transferred from the transfer selection part, and to repair welding and grinding the product structural parts.

[0014] Preferably, the transfer selection member includes a transverse sliding member and a third conveying roller, the transverse sliding member is arranged on a transverse slide rail on the ground, and the third conveying roller is arranged to follow the transverse sliding member.

[0015] Preferably, the repair welding positioner includes a fourth conveyor roller, a repair welding positioner and a cantilever wire feeding welder. The fourth conveyor roller is arranged on the ground on the right side of one end of the transverse sliding member, and is used to receive the product structural parts conveyed by the third conveyor roller; the repair welding positioner is arranged on the ground on the right side of the fourth conveyor roller, and is used to receive the product structural parts conveyed by the fourth conveyor roller; the cantilever wire feeding welder is arranged on the ground next to the repair welding positioner, and is used to perform manual repair welding and grinding operations on the product structural parts fastened to the repair welding positioner; two sets of the repair welding positioners are distributed in parallel, and the two sets of the repair welding positioners correspond one by one to the two ends of the transverse sliding member.

[0016] Preferably, the shape-correcting offline component includes a shape-correcting component and an offline component. The shape-correcting component is arranged on the ground on the right side of the repair welding positioner, and is used to receive the product structural component pushed by the repair welding positioner and correct the appearance of the product structural component; the offline component is arranged on the ground on the right side of the shape-correcting component, and is used to flip the product structural component after shape correction off the line.

[0017] The present invention has at least the following beneficial effects:

[0018] 1) The automatic welding production line for structural parts of the present invention has a high degree of automation, a simple production process, high production efficiency, low production cost, high product quality and stable production quality;

[0019] 2) When the automatic welding production line for structural parts of the present invention automatically produces structural parts, robot handling and roller conveying are adopted, and the one-way flow of logistics is efficient, which significantly improves the degree of automation, production efficiency and production quality of structural parts production, significantly simplifies the production process of structural parts, and reduces production costs.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the automatic welding production line for structural parts of the present invention;

[0022] Figure 2 This is the automatic welding production line for structural parts of the present invention Figure 1 A partial enlarged view of middle A;

[0023] Figure 3 This is the automatic welding production line for structural parts of the present invention Figure 1 A partial enlarged view of B in the middle;

[0024] Figure 4 This is the automatic welding production line for structural parts of the present invention Figure 3 A partial enlarged view of middle F;

[0025] Figure 5 This is the automatic welding production line for structural parts of the present invention Figure 1 A partial enlarged view of middle C;

[0026] Figure 6 This is the automatic welding production line for structural parts of the present invention Figure 5 A partial enlarged view of G in the middle;

[0027] Figure 7 This is the automatic welding production line for structural parts of the present invention Figure 1 A partial enlarged view of middle D;

[0028] Figure 8 This is the automatic welding production line for structural parts of the present invention Figure 1 A partial enlarged view of middle E;

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of the automatic welding production line of structural parts of the present invention;

[0030] Fig.10 This is the automatic welding production line for structural parts of the present invention Fig. 9 A partial enlarged view of H in the middle;

[0031] Fig.11 This is the automatic welding production line for structural parts of the present invention Fig. 9 A partial enlarged view of middle I;

[0032] Fig.12 This is the automatic welding production line for structural parts of the present invention Fig.11 A partial enlarged view of N in the figure;

[0033] Fig.13 This is the automatic welding production line for structural parts of the present invention Fig.11 A partial enlarged view of O in the middle;

[0034] Fig.14 This is the automatic welding production line for structural parts of the present invention Fig. 9 A partial enlarged view of middle J;

[0035] Fig.15 This is the automatic welding production line for structural parts of the present invention Fig.14 A partial enlarged view of P in the middle;

[0036] Fig.16 This is the automatic welding production line for structural parts of the present invention Fig.14 A partial enlarged view of the middle Q;

[0037] Fig.17 This is the automatic welding production line for structural parts of the present invention Fig. 9 A partial enlarged view of K in the middle;

[0038] Fig.18 This is the automatic welding production line for structural parts of the present invention Fig.17 A partial enlarged view of R in the middle;

[0039] Fig.19 This is the automatic welding production line for structural parts of the present invention Fig. 9 A partial enlarged view of L in the middle;

[0040] Fig. 20 This is the automatic welding production line for structural parts of the present invention Fig.19 A partial enlarged view of S in the middle;

[0041] Fig.21 This is the automatic welding production line for structural parts of the present invention Fig.19 A partial enlarged view of T in the middle;

[0042] Fig. 22 This is the automatic welding production line for structural parts of the present invention Fig. 9 A partial enlarged view of M in the figure.

[0043] Among them: 1-ground, 2-product structure, 3-first incoming material tray, 4-parts, 5-first unloading table, 6-components, 7-parts assembly tooling, 8-first rail seat, 9-first rail assembly robot, 10-first welding robot, 11-second rail seat, 12-second rail assembly robot, 13-automatic assembly workbench, 14-lateral cylinder, 15-end cylinder, 16-third rail seat, 17-rail welding robot, 18-first conveyor roller, 19-conveyor belt, 20-vertical transfer unit, 21-secondary centering table, 22-first The second conveyor roller, 23-the fourth ground rail seat, 24-the ground rail handling robot, 25-the welding positioner, 26-the third welding robot, 27-the product clamping seat, 28-the third conveyor roller, 29-the transverse sliding member, 30-the transverse sliding rail, 31-the fourth conveyor roller, 32-the repair welding positioner, 33-the cantilever wire feeding welding machine, 35-the second roller, 36-the fifth conveyor roller, 37-the sixth conveyor roller, 38-the push-to-shape correction member, 40-the seventh conveyor roller, 41-the turning machine, 42-the AGV trolley, 43-the second unloading table, 44-the second incoming material tray. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0045] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0046] according to Figure 1-Figure 22 As shown, an automatic welding production line for structural parts includes prefabricated assembly parts, automatic welding parts and repair welding, grinding and shaping parts. The prefabricated assembly parts are arranged on the ground 1 of the production line, the automatic welding parts are arranged on the ground 1 corresponding to the prefabricated assembly parts, and the repair welding, grinding and shaping parts are arranged on the ground 1 corresponding to the automatic welding parts.

[0047] The prefabricated assembly includes an automatic prefabricated part and an automatic assembly part, wherein the automatic prefabricated part assembles and rivets a plurality of parts 4 on the ground 1 into a component 6, and the automatic assembly part is arranged on the ground 1 corresponding to the automatic prefabricated part, and automatically assembles and rivets a plurality of the components 6 into a product structure 2. As an option, the product structure 2 is an inner middle door frame.

[0048] The automatic prefabricated parts include a first group robot, a parts assembly tool 7 and a first welding robot 10. The first group robot is arranged at one end of the ground 1 of the production line, the parts assembly tool 7 is correspondingly arranged on the ground 1 next to the first group robot, and the first welding robot 10 is correspondingly arranged on the ground 1 next to the parts assembly tool 7.

[0049] The first pair of robots is used to transfer the parts 4 on the first incoming material tray 3 set next to it to the part assembly tool 7 one by one in a predetermined order. After the multiple parts 4 are spliced ​​on the part assembly tool 7, they are riveted and welded by the first welding robot 10 to form the parts 6. After that, the first pair of robots transfers the parts 6 to the first unloading table 5 for further assembly of the automatic assembly parts. Furthermore, the first incoming material tray 3 is provided with multiple, and the multiple first incoming material trays 3 are used to place different parts 6 for the first pair of robots to grab and transfer parts 4 in a predetermined order. Each of the first incoming material trays 3 is transferred to a predetermined position by the AGV trolley 42. The first unloading table 5 is provided with multiple, and the multiple first unloading tables 5 are used to place different parts 6. It should be noted that the first unloading table 5 is located between the automatic prefabricated parts and the automatic assembly parts to facilitate the grabbing and use of the automatic assembly parts.

[0050] The first assembly robot includes a first rail seat 8 and a first rail assembly robot 9. The first rail seat 8 is arranged on the ground 1 along the production flow direction of the production line. The first rail assembly robot 9 is slidably mounted on the first rail seat 8 and is used to slide axially on the first rail seat 8 to improve the flexibility of the first rail assembly robot 9, so as to facilitate the placement and splicing of different parts 4 on the first incoming material trays 3 on the part assembly tool 7 in a predetermined order and position, and wait for the first welding robot 10 to rivet and weld to complete the prefabrication of the parts 6. The prefabricated parts 6 are grabbed by the first rail assembly robot 9 and placed on the first unloading platform 5.

[0051] The automatic assembly parts include a second group robot, an automatic assembly tool, a second welding robot and a transfer part. The second group robot is correspondingly arranged on the ground 1 on the right side of the first group robot, the automatic assembly tool is correspondingly arranged on the ground 1 next to the second group robot, the second welding robot is correspondingly arranged on the ground 1 next to the automatic assembly tool, and the transfer part is correspondingly arranged on the ground 1 next to the second group robot.

[0052] The second assembly robot is used to grab and transfer the parts 6 on the second incoming material tray 44 and the parts 6 on the first unloading platform 5 one by one in a predetermined order to the predetermined position of the automatic assembly tooling. The automatic assembly tooling automatically assembles and splices the received multiple parts 6 into a product structure 2, and the second welding robot automatically rivets and welds the spliced ​​product structure 2. Further, the product structure 2 is an inner middle door frame. Further, the second incoming material tray 44 is provided with multiple parts 6 of different types, and the multiple second incoming material trays 44 are placed one by one to meet the assembly needs of the product structure 2.

[0053] The second assembling robot includes a second ground rail seat 11 and a second ground rail assembling robot 12. The second ground rail seat 11 is correspondingly arranged on the ground 1 on the right side of the first ground rail seat 8. The second ground rail assembling robot 12 is slidably installed on the second ground rail seat 11 and is used for axial sliding on the second ground rail seat 11, so that the second ground rail assembling robot 12 can grab different types of parts 6 from multiple second incoming material trays 44 and the first unloading table 5 and transfer them to the predetermined position of the automatic assembling tooling, thereby improving the flexibility of the second ground rail assembling robot 12.

[0054] The automatic assembly tooling includes an automatic assembly workbench 13, lateral positioning members and end positioning members. The automatic assembly workbench 13 receives a plurality of the components 6 transferred from the second ground rail assembly robot 12 on the ground 1. The lateral positioning members are on the automatic assembly workbench 13, and the lateral cylinders 14 on the lateral positioning members automatically push the components 6 from the side. Further, two sets of lateral positioning members are provided, and the two sets of lateral positioning members are symmetrically distributed on both sides of the automatic assembly workbench 13. The end positioning members are on the automatic assembly workbench 13, and the end cylinders 15 on the end positioning members automatically push the components 6 from the end. Further, two sets of end positioning members are provided, and the two sets of end positioning members are symmetrically distributed on both ends of the automatic assembly workbench 13.

[0055] The second welding robot includes a third rail seat 16 and a rail welding robot 17. The third rail seat 16 is correspondingly arranged on the ground 1 next to the automatic assembly tooling. The rail welding robot 17 is slidably installed on the third rail seat 16, so that the rail welding robot 17 can slide parallel to the automatic assembly tooling on the third rail seat 16, thereby satisfying the requirement that the rail welding robot 17 axially aligns and splices the product structural parts 2 assembled and spliced ​​on the automatic assembly tooling, and welds them symmetrically according to a predetermined riveting and welding sequence.

[0056] The transfer member includes a transfer mechanism and a first conveyor roller 18. The transfer mechanism is used on the ground 1 beside the third ground rail seat 16 to receive the product structure 2 that has been riveted and transferred by the second group of robots, and transfer the product structure 2 to the corresponding first conveyor roller 18, so as to transfer the product structure 2 to the next process. Furthermore, the first conveyor roller 18 is equipped with a motor to automatically transfer the product structure 2 to the next process.

[0057] The transfer mechanism includes a conveyor belt 19 and a vertical transfer part 20. After the conveyor belt receives the product structure 2 on the ground 1, it automatically transfers to the other end of the conveyor belt 19 to the vertical transfer part 20. The vertical transfer part 20 automatically pushes the product structure 2 vertically to a predetermined height through the vertical push cylinder on the conveyor belt, and then the vertical transfer part 20 drives the first roller connected to the first motor to horizontally push the product structure 2 to the first conveyor roller 18. The first conveyor roller 18 automatically transfers the product structure 2 to the next process. The conveyor belt 19 is a chain plate conveyor belt 19.

[0058] The automatic welding part includes a secondary centering platform 21, a handling robot, a welding positioner and a second conveying roller 22. The secondary centering platform 21 is correspondingly arranged on the ground 1 next to the first conveying roller 18, the handling robot is correspondingly arranged on the ground 1 next to the secondary centering platform 21, the second conveying roller 22 is correspondingly arranged on the ground 1 next to the handling robot, and the welding positioner is correspondingly arranged on the ground 1 next to the second conveying roller 22.

[0059] The transport robot grabs the product structure 2 conveyed from the first conveyor roller 18 and transfers it to the secondary centering platform 21 for secondary positioning. The product structure 2 that passes the secondary positioning is grabbed by the transport robot and transferred to the welding displacement piece for clamping displacement welding.

[0060] The transport robot includes a fourth ground rail seat 23 and a ground rail transport robot 24. The fourth ground rail seat 23 is arranged parallel to the ground 1 next to the secondary centering platform 21. The ground rail transport robot 24 is slidably installed on the fourth ground rail seat 23 and slides axially to improve the transport and movement freedom of the ground rail transport robot 24.

[0061] The welding positioner includes a welding positioner 25 and a third welding robot 26. The welding positioner 25 is arranged in parallel and correspondingly on the ground 1 beside the second conveying roller 22. The third welding robot 26 is arranged on the ground 1 beside the welding positioner 25 and is used to transfer the product structure 2 on the welding positioner 25 for full welding. Further, two third welding robots 26 are provided, and the two third welding robots 26 are symmetrically distributed at both ends of one side of the welding positioner 25 to meet the symmetrical full welding requirements of the product structure 2, so as to avoid stress concentration and deformation of the product structure 2 after full welding.

[0062] The welding positioner 25 is provided with a product clamping seat 27. After the ground rail handling robot 24 carries the product structural part 2 to the product clamping seat 27, the product clamping seat 27 clamps and locks the two sides and ends of the product structural part 2. The welding positioner 25 can drive the product structural part 2 to rotate circumferentially around the axis to cooperate with the third welding robot 26 to meet the automatic welding requirements of the product structural part 2. After the product structural part 2 is fully welded, it is transported and transferred to the second conveyor roller 22 by the ground rail handling robot 24. The second conveyor roller 22 has its own motor power to transfer the product structural part 2 to the next process.

[0063] Furthermore, two sets of the welding positioners are provided, and the two sets of the welding positioners are distributed in parallel along the same straight line and beside the side of the second conveying roller 22 .

[0064] The repair welding, grinding and shaping parts include repair welding and grinding parts and shaping downline parts. The repair welding and grinding parts are correspondingly arranged on the ground 1 of the production line on the right side of the automatic welding parts, and are used to receive the product structural parts 2 transferred from the automatic welding parts. The shaping downline parts are arranged on the ground 1 of the production line on the right side of the repair welding and grinding parts, and are used to receive the product structural parts 2 transferred from the repair welding and grinding parts.

[0065] The repair welding and grinding parts include a transfer selection part and a repair welding displacement part. The transfer selection part is correspondingly arranged on the ground 1 on the right side of the automatic welding part, and is used to receive the product structural part 2 transferred from the automatic welding part. Two sets of the repair welding displacement parts are arranged parallel to each other on the ground 1 on the right side of the transfer selection part, and are used to receive the product structural part 2 transferred from the transfer selection part and repair welding the product structural part 2.

[0066] The transfer selection member includes a transverse slide 29 and a third conveyor roller 28. The transverse slide 29 is arranged on a transverse slide rail 30 on the ground 1. The longitudinal line of the transverse slide rail 30 is perpendicular to the longitudinal line of the second conveyor roller 22. The transverse slide 29 is provided with a motor power so that the transverse slide 29 slides back and forth along the transverse direction of the production line on the transverse slide rail 30. The third conveyor roller 28 is arranged to follow the transverse slide 29. The conveying longitudinal direction of the third conveyor roller 28 is parallel to the conveying longitudinal direction of the second conveyor roller 22. When the third conveyor roller 28 follows the transverse slide 29, it can be aligned with the second conveyor roller 22 to receive the product structure 2 conveyed by the second conveyor roller 22. After the third conveyor roller 28 receives the product structure 2, it is alternately pushed to the two repair welding displacement parts one by one. Further, the third conveyor roller 28 has its own motor power to push the product structure 2 to the repair welding displacement part.

[0067] The repair welding positioner includes a fourth conveyor roller 31, a repair welding positioner 32 and a cantilever wire feeding welder 33. The fourth conveyor roller 31 is arranged on the ground 1 on the right side of one end of the transverse sliding member 29, and is used to receive the product structure 2 conveyed by the third conveyor roller 28. The repair welding positioner is arranged on the ground 1 on the right side of the fourth conveyor roller 31, and is used to receive the product structure 2 conveyed by the fourth conveyor roller 31. The cantilever wire feeding welder 33 is arranged on the ground 1 next to the repair welding positioner, and is used to perform manual repair welding and grinding operations on the product structure 2 fastened to the repair welding positioner. Furthermore, the fourth conveyor roller 31 and the fifth conveyor roller 36 are both equipped with motor power.

[0068] Furthermore, two sets of the repair welding displacement members are provided, the two sets of the repair welding displacement members are distributed in parallel, and the two sets of the repair welding displacement members correspond to the two lateral sliding ends of the lateral sliding member 29 one by one.

[0069] The said welding positioner 32 is provided with a positioning member and a second roller 35, and the second roller 35 receives the said product structure 2 on the said welding positioner 32 and transfers the said product structure 2 to the said positioning member. The said positioning member locks the said product structure 2 on the said welding positioner 32 through the transverse locking cylinder thereon. The said welding positioner 32 can drive the said product structure 2 to rotate circumferentially along the axis. Furthermore, the said second roller 35 has its own motor power.

[0070] The shape-correcting offline parts include shape-correcting parts and offline parts. The shape-correcting parts are arranged on the ground 1 on the right side of the repair welding positioner, and are used to receive the product structural part 2 pushed by the repair welding positioner 32, and correct the shape of the product structural part 2 to avoid deformation of the product structural part 2 caused by the welding process; the offline parts are arranged on the ground 1 on the right side of the shape-correcting parts, and are used to flip the product structural part 2 after shape correction offline.

[0071] The shape correction parts include a fifth conveying roller 36, a sixth conveying roller 37 and a push shape correction part 38. The fifth conveying roller 36 is arranged on the ground 1 on the right side of the repair welding positioner 32, and is used to receive the product structure 2 conveyed by the repair welding positioner 32, and transfer the product structure 2 to the sixth conveying roller 37. The sixth conveying roller 37 is correspondingly installed on the ground 1 on the right side of the fifth conveying roller 36, and is used to receive the product structure 2 conveyed by the fifth roller. The push shape correction part 38 is arranged on the sixth conveying roller 37, and the side of the product structure 2 is pushed and corrected by the push cylinder on the push shape correction part 38. Furthermore, a plurality of the push shape correction parts 38 are evenly distributed on both sides of the sixth conveying roller 37. As an option, the push cylinder is a hydraulic cylinder or an electric cylinder.

[0072] The off-line parts include a seventh conveyor roller 40 and a turner 41. The seventh conveyor roller 40 is correspondingly arranged on the ground 1 on the right side of the sixth conveyor roller 37, and is used to receive the product structure 2 pushed by the sixth conveyor roller 37, and transfer the product structure 2 to the turner 41. The turner 41 is correspondingly arranged on the ground 1 on the right side of the seventh conveyor roller 40. After receiving the product structure 2, the product structure 2 is locked on the turner 41. After the turner 41 drives the product structure 2 to turn 180 degrees in the circumferential direction, the product structure 2 is unlocked from the turner 41, so that the product structure 2 falls on the AGV trolley 42 below the turner 41. The AGV trolley 42 transports and transfers the product structure 2 to the second unloading platform 43, that is, the production of the product structure 2 is completed.

[0073] Furthermore, two sets of the shape-correcting lower line parts are provided, and the two sets of the shape-correcting lower line parts are provided correspondingly to the two sets of the repair welding displacement parts.

[0074] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A structural parts automatic welding production line, characterized in that: include: A prefabricated assembly part is arranged on the ground at one end of the production line, and the prefabricated assembly part includes an automatic prefabricated part and an automatic assembly part. The automatic prefabricated part assembles and rivets a plurality of parts into components on the ground at one end of the production line; the automatic assembly part is arranged on the ground to the right of the automatic prefabricated part, and automatically assembles and rivets a plurality of the components into product structural parts; An automatic welding part, which is correspondingly arranged on the ground on the right side of the automatic assembly part, performs full welding operation on the product structural parts conveyed by the automatic assembly part; The repair welding, grinding and shaping parts are arranged on the ground on the right side of the automatic welding parts, and the repair welding, grinding and shaping parts include repair welding and grinding parts and shaping offline parts. The repair welding and grinding parts are arranged on the ground on the right side of the automatic welding parts, and are used to receive the product structural parts transferred from the automatic welding parts, and manually repair welding and grinding the product structural parts; the shaping offline parts are arranged on the ground on the right side of the repair welding and grinding parts, and are used to receive the product structural parts transferred from the repair welding and grinding parts, and take the product structural parts off the line after production is completed.

2. The automatic welding production line for structural parts according to claim 1 is characterized in that: The automatic prefabricated parts include a first group of robots, a parts assembly tool and a first welding robot. The first group of robots is correspondingly arranged at one end of the ground of the production line, and is used to transfer the parts on the first incoming material tray arranged next to it to the parts assembly tool one by one in a predetermined order; the parts assembly tool is correspondingly arranged on the ground next to the first group of robots, and is used to splice the transferred multiple parts to form parts; the first welding robot is correspondingly arranged on the ground next to the parts assembly tool, performs riveting and welding operations on the parts, and the first group of robots transfers the riveted and welded parts to the first unloading table for standby use.

3. The automatic welding production line for structural parts according to claim 2 is characterized in that: The automatic assembly parts include a second group robot, an automatic assembly tool, a second welding robot and a transfer part. The second group robot is correspondingly arranged on the ground on the right side of the first group robot, and is used to grab and transfer the parts on the second incoming material tray and the parts on the first unloading table arranged next to it to the predetermined positions of the automatic assembly tool in a predetermined order; the automatic assembly tool is correspondingly arranged on the ground next to the second group robot, and is used to assemble and splice multiple parts into product structural parts; the second welding robot is correspondingly arranged on the ground next to the automatic assembly tool, and is used to perform riveting and welding operations on the product structural parts; the transfer part is correspondingly arranged on the ground next to the second group robot, and is used to transfer the product structural parts grabbed and transferred by the second group robot to the next process.

4. The automatic welding production line for structural parts according to claim 3 is characterized in that: The transfer member includes a transfer mechanism and a first conveyor roller. The transfer mechanism is on the ground next to the second welding robot, and is used to receive the product structure parts that have been riveted and transferred by the second group of robots, and transfer the product structure parts to the corresponding first conveyor roller to transfer the product structure parts to the next process.

5. The automatic welding production line for structural parts according to claim 4 is characterized in that: The automatic welding part includes a secondary centering platform, a handling robot, a welding positioner and a second conveying roller. The secondary centering platform is correspondingly arranged on the ground next to the first conveying roller, the handling robot is correspondingly arranged on the ground next to the secondary centering platform, the second conveying roller is correspondingly arranged on the ground next to the handling robot, and the welding positioner is correspondingly arranged on the ground next to the second conveying roller; the handling robot grabs the product structure conveyed on the first conveying roller and transfers it to the secondary centering platform for secondary positioning; the product structure after secondary positioning is grabbed by the handling robot and transferred to the welding positioner for clamping and positional welding.

6. The automatic welding production line for structural parts according to claim 5 is characterized in that: The welding positioner includes a welding positioner and a third welding robot. The welding positioner is correspondingly arranged on the ground next to the second conveyor roller, and the third welding robot is correspondingly arranged on the ground next to the welding positioner, and is used to perform full welding operations on the product structural parts transferred to the welding positioner.

7. The automatic welding production line for structural parts according to any one of claims 1 to 6, characterized in that: The repair welding and grinding parts include a transfer selection part and a repair welding displacement part. The transfer selection part is correspondingly arranged on the ground on the right side of the automatic welding part, and is used to receive the product structural parts transferred from the automatic welding part. Two sets of the repair welding displacement parts are arranged parallel to each other on the ground on the right side of the transfer selection part, and are used to receive the product structural parts transferred from the transfer selection part, and to repair welding and grinding the product structural parts.

8. The automatic welding production line for structural parts according to claim 7 is characterized in that: The transfer selection member includes a transverse sliding member and a third conveying roller. The transverse sliding member is arranged on a transverse slide rail on the ground, and the third conveying roller is arranged on the transverse sliding member and moves with it.

9. The automatic welding production line for structural parts according to claim 8, characterized in that: The repair welding positioner includes a fourth conveyor roller, a repair welding positioner and a cantilever wire feeding welder. The fourth conveyor roller is arranged on the ground on the right side of one end of the transverse sliding member, and is used to receive the product structural parts conveyed by the third conveyor roller; the repair welding positioner is arranged on the ground on the right side of the fourth conveyor roller, and is used to receive the product structural parts conveyed by the fourth conveyor roller; the cantilever wire feeding welder is arranged on the ground next to the repair welding positioner, and is used to perform manual repair welding and grinding operations on the product structural parts fastened on the repair welding positioner; two sets of the repair welding positioners are distributed in parallel, and the two sets of the repair welding positioners correspond one by one to the two ends of the transverse sliding member.

10. The automatic welding production line for structural parts according to claim 7, characterized in that: The shape-correcting offline parts include shape-correcting parts and offline parts. The shape-correcting parts are arranged on the ground on the right side of the repair welding positioner, and are used to receive the product structural parts pushed by the repair welding positioner and correct the appearance of the product structural parts; the offline parts are arranged on the ground on the right side of the shape-correcting parts, and are used to flip the product structural parts after shape correction off the line.

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