A method and apparatus for automated welding of a guide shoe

Abstract

The application belongs to the technical field of welding production line, and discloses a kind of automatic welding production line and method for guide seat, wherein the automatic welding production line for guide seat includes guide seat single piece automatic team formation station, single piece robot automatic welding station, guide seat assembly artificial team formation station, assembly robot automatic welding station and assembly artificial repair welding station, the guide seat single piece automatic team formation station, single piece robot automatic welding station, guide seat assembly artificial team formation station, assembly robot automatic welding station and assembly artificial repair welding station are sequentially arranged in a straight line in production site according to production process sequence;The application can automatically form a team for guide seat single piece loose parts, and automatically weld by single piece robot, carry workpiece by carrying robot for interstation conveying and automatic feeding and discharging, to realize automatic welding operation of guide seat from loose parts to finished product offline.

Description

An automated welding production line and method for guide seats Technical Field

[0001] This invention belongs to the field of welding production line technology, specifically, it relates to an automated welding production line and method for guide seats. Background Technology

[0002] The guide seat welding is currently produced on a manual production line. Individual parts are assembled manually. The KBK handling device is used to move the individual guide seat parts to the assembly welding platform for manual positioning and tack fixing. A manual welding gun is used for tack fixing. After assembly, the parts are manually moved to the individual part repair welding station for repair welding. Then, they are manually moved to the assembly manual assembly workbench for assembly. Then, they are manually moved to the assembly repair welding workbench for further repair welding. Finally, they are manually moved to the manual repair welding station for further repair welding and the weld is ground and removed from the production line.

[0003] During the production process, the guide seat is heavy, and the load is too large for manual handling. Using lifting equipment is inefficient and dangerous. Furthermore, manual teaming is inefficient, requiring repeated manual measurement of dimensions, which cannot guarantee team consistency. It also requires a high level of skill from the operators. In addition, the rework rate is high when welding manually. The guide seat has many welding positions, requiring frequent adjustments to the welding posture, resulting in low manual welding efficiency and unstable welding quality. Summary of the Invention

[0004] The main technical problem to be solved by the present invention is to provide an automated welding production line and method for guide seats, which can automatically assemble individual guide seat parts and use single-piece robots for automatic welding, and use transport robots to transport workpieces between workstations and automatically load and unload them; through the orderly coordination and cooperation between various workstations, the automated welding operation of guide seats from individual parts to finished products is realized.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] An automated welding production line for guide seats includes an automatic assembly station for single guide seats, an automatic robotic welding station for single guide seats, a manual assembly station for guide seat assemblies, an automatic robotic welding station for assemblies, and a manual welding station for assemblies. The automatic assembly station for single guide seats, the automatic robotic welding station for single guide seats, the manual assembly station for guide seat assemblies, the automatic robotic welding station for assemblies, and the manual welding station for assemblies are arranged in a straight line on the production site according to the production process sequence.

[0007] The following are further optimizations of the above technical solution by the present invention:

[0008] The guide seat single-piece automatic assembly station includes a transport robot walking track A, which is arranged horizontally in a straight line. Transport robots A and B are installed on the transport robot walking track A. One side of the transport robot walking track A is provided with at least one set of component loading and positioning frames for storing guide seat single-piece components. The other side of the transport robot walking track A is provided with at least one set of assembly welding devices.

[0009] Further optimization: The team welding device includes a single-piece team arc welding robot. A secondary centering platform is set at the position between the single-piece team arc welding robot and the transport robot's walking track A. Single-piece automatic team dual-axis positioners are set on the left and right sides of the single-piece team arc welding robot, respectively.

[0010] Positioning buffer platforms are respectively installed on both sides of the walking track A of the transport robot, near the automatic welding station of the single-piece robot.

[0011] Further optimization: The single-piece robot automatic welding station consists of a single-piece automatic arc welding robot, a single-piece automatic arc welding dual-axis positioner, a plate chain conveyor line, and a handling robot C. There are six sets of single-piece automatic arc welding robots, and the six sets of single-piece automatic arc welding robots are evenly arranged on both sides of the handling robot's walking track A. Each set of single-piece automatic arc welding robots has a single-piece automatic arc welding dual-axis positioner on one side.

[0012] Further optimization: There are two sets of plate chain conveyor lines, and the two sets of plate chain conveyor lines are set on both sides of the walking track A of the handling robot and close to the manual teaming station of the guide seat assembly;

[0013] The transport robot C is set on the transport robot walking track A and is used to pick up the guide seat piece that has been welded on the single-piece automatic arc welding dual-axis positioner and place it on the plate chain conveyor line.

[0014] Further optimization: The manual assembly station for the guide seat assembly consists of a KBK electric hoisting system A, a manual assembly platform, a manual arc welding machine A, a component loading frame, a sliding conveyor platform, and a buffer platform A. The sliding conveyor platform has a certain guide seat positioning capability, facilitating the grabbing by the robot at subsequent workstations. The manual assembly platform is used to assemble two symmetrical guide seat pieces into a single guide seat assembly. The manual arc welding machine A is used to spot weld and fix the guide seats. The KBK electric hoisting system A can lift individual guide seat pieces.

[0015] Further optimization: The assembly robot automatic welding station consists of an assembly automatic arc welding robot, an assembly automatic arc welding dual-axis positioner, a transport robot walking track B, and a transport robot D. There are ten sets of assembly automatic arc welding robots, and the ten sets of assembly automatic arc welding robots are symmetrically distributed on both sides of the transport robot walking track B. Each side of the assembly automatic arc welding robot is equipped with an assembly automatic arc welding dual-axis positioner.

[0016] Further optimization: The transport robot's walking track B is arranged horizontally in a straight line, extending from one side of the assembly robot's automatic welding station to the position of the assembly's manual welding station; the transport robot D is set on the transport robot's walking track B, and the transport robot D works to take out the guide seat that has been spot-welded on the sliding conveyor platform and place it on the fixture of the assembly's automatic arc welding dual-axis positioner.

[0017] Further optimization: The assembly manual welding station consists of the KBK electric hoisting system B, the assembly manual welding dual-axis positioner, the manual arc welding machine B, the buffer table, and the finished product precision positioning unloading frame. The assembly manual welding dual-axis positioner is used to clamp the guide seat, and then the manual arc welding machine B is used to manually weld and manually grind and inspect the guide seat.

[0018] The present invention also provides an automated welding production method for guide seats. Based on the above-mentioned automated welding production line for guide seats, the production method is carried out according to the following steps:

[0019] Step 1: Place the individual guide seat pieces to be assembled into their respective positions on the precise positioning frame of the individual parts, and then start the automated welding production line for the guide seats.

[0020] Step 2: At the automatic assembly station for single guide seats, the handling robot A picks up the single guide seat pieces from the component loading frame according to the process requirements and places them on the secondary centering table. Then, the positioned pieces are picked up from the secondary centering table and placed on the assembly fixture of the automatic assembly dual-axis positioner for positioning and clamping. The automatic assembly dual-axis positioner drives the single guide seat pieces to rotate and change their posture. With the cooperation of the single-piece assembly arc welding robot, the assembled guide seat pieces are spot welded. The handling robot B removes the welded guide seat pieces and places them on the positioning buffer table.

[0021] Step 3: At the position of the single-piece robot automatic welding station, the transport robot B picks up the guide seat single piece placed on the positioning buffer table and places it on the fixture of the single-piece automatic arc welding dual-axis positioner for automatic positioning and clamping. The single-piece automatic arc welding dual-axis positioner is used to drive the clamped guide seat single piece to rotate and change its posture. The single-piece automatic arc welding robot is used to perform welding operations on the welding guide seat single piece. Then, the transport robot C removes the welded guide seat single piece from the single-piece automatic arc welding dual-axis positioner and places it on the plate chain conveyor line, which transports it to the guide seat assembly manual assembly station.

[0022] Step 4: At the manual assembly station of the guide seat assembly, the worker uses the KBK electric hoisting system A to hoist the workpieces to be assembled to the assembly manual assembly platform. The worker assembles the two symmetrical guide seat pieces and uses the manual arc welding machine A to spot weld and fix the assembled guide seats. After spot welding and fixing, the guide seats are used to hoist the workpieces to the sliding conveyor platform using the KBK electric hoisting system A. If the sliding conveyor platform is full, the spot-welded guide seats are placed on the buffer platform A for temporary storage.

[0023] Step 5: At the automated welding station of the assembly robot, the transport robot D removes the spot-welded guide seat from the sliding conveyor platform and places it on the fixture of the assembly automated arc welding dual-axis positioner for clamping. The assembly automated arc welding dual-axis positioner drives the guide seat to rotate and change its posture. Then, the assembly automated arc welding robot performs welding operations on the guide seat. After welding is completed, the transport robot D removes the welded guide seat and transports it to the assembly manual repair welding station.

[0024] Step Six: At the position of the assembly manual welding station, the transport robot D takes out the guide seat that has been welded at the assembly robot automatic welding station and places it on the fixture of the assembly manual welding dual-axis positioner. If the assembly manual welding dual-axis positioner is full of guide seats, the guide seats can be placed on the buffer platform for temporary storage. Then, the worker uses the welding gun of the manual arc welding machine B to perform welding and grinding operations on the guide seats. After processing, the guide seats are stacked into the finished product precise positioning unloading frame using the KBK electric hoisting system B.

[0025] This invention employs the above-mentioned technical solution, which is ingeniously conceived and rationally structured. The automated welding production line and method for guide seats utilize automatic assembly of individual guide seat pieces, automatic welding of individual pieces by robots, manual assembly of guide seat assemblies, automatic welding of assemblies by robots, and manual re-welding of assemblies. A transport robot transports workpieces between workstations and automatically loads and unloads them. This automated welding production line and method for guide seats has a simple overall structure, is easy to use, and has a high degree of automation. It greatly improves the assembly production efficiency of individual guide seat pieces, significantly reduces manual intervention, enhances the safety of the production process, lowers the assembly rework rate, improves the welding quality of the assembly, ensures the consistency of the welding process, and guarantees the welding quality of the guide seats.

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the welding production line in an embodiment of the present invention;

[0028] Figure 2 is a layout view of the guide seat single piece automatic teaming station in an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of the structure of the component loading precision positioning frame in an embodiment of the present invention;

[0030] Figure 4 is a layout view of the automatic welding station of a single-piece robot in an embodiment of the present invention;

[0031] Figure 5 is a layout view of the manual teaming station of the guide seat assembly in an embodiment of the present invention;

[0032] Figure 6 is a layout view of the automatic welding station of the assembly robot in an embodiment of the present invention;

[0033] Figure 7 is a layout view of the manual welding station of the assembly in an embodiment of the present invention;

[0034] Figure 8 is a schematic diagram of the structure of the guide seat workpiece in an embodiment of the present invention.

[0035] In the diagram: 1-Automatic assembly station for single guide units; 2-Automatic welding station for single units using robots; 3-Manual assembly station for guide unit assemblies; 4-Automatic welding station for assemblies using robots; 5-Manual repair welding station for assemblies; 101-Single unit assembly arc welding robot; 102-Automatic assembly dual-axis positioner for single units; 103-Precision positioning frame for loose parts; 1031-Frame; 1032-Dispensing plate; 1033-Positioning pin; 104-Positioning buffer platform; 105-Secondary centering platform; 601-Tracking robot track A; 602-Tracking robot A; 603-Tracking robot B; 201-Automatic arc welding robot for single units; 202-Automatic arc welding robot for single units. Dual-axis positioner; 203-Plate chain conveyor line; 604-Handling robot C; 301-KBK electric hoisting system A; 302-Assembly manual teaming platform; 303-Manual arc welding machine A; 304-Assembly component loading frame; 305-Sliding conveyor platform; 306-Buffer platform A; 401-Assembly automatic arc welding robot; 402-Assembly automatic arc welding dual-axis positioner; 605-Handling robot walking track B; 606-Handling robot D; 501-KBK electric hoisting system B; 502-Assembly manual repair welding dual-axis positioner; 503-Manual arc welding machine B; 504-Buffer platform B; 505-Finished product precision positioning unloading frame. Detailed Implementation

[0036] As shown in Figures 1-8: An automated welding production line for guide seats includes an automatic assembly station 1 for single guide seats, an automatic welding station 2 for single-piece robotic welding, a manual assembly station 3 for guide seat assemblies, an automatic welding station 4 for assemblies, and a manual repair welding station 5 for assemblies. The automatic assembly station 1 for single guide seats, the automatic welding station 2 for single-piece robotic welding, the manual assembly station 3 for guide seat assemblies, the automatic welding station 4 for assemblies, and the manual repair welding station 5 for assemblies are arranged in a straight line on the production site according to the production process sequence.

[0037] The guide seat single-piece automatic assembly station 1 includes a transport robot walking track A601, which is arranged horizontally in a straight line. One side of the transport robot walking track A601 is provided with at least one set of component loading and positioning material frames 103 for storing guide seat single-piece components, and the other side of the transport robot walking track A601 is provided with at least one set of assembly welding devices.

[0038] The welding assembly device includes a single-piece welding arc welding robot 101. A secondary centering platform 105 is provided at the position between the single-piece welding arc welding robot 101 and the transport robot's walking track A601. A single-piece automatic welding dual-axis positioner 102 is provided on the left and right sides of the single-piece welding arc welding robot 101, respectively.

[0039] The transport robot walking track A601 is equipped with transport robot A602 and transport robot B603. The transport robot A602 and transport robot B603 can automatically walk on the transport robot walking track A601 and transport the guide seat single piece and the guide seat single piece that has been initially welded.

[0040] Positioning buffer platforms 104 are respectively installed on both sides of the walking track A601 of the transport robot, near the automatic welding station 2 of the single-piece robot.

[0041] In this embodiment, both the transport robot A602 and the transport robot B603 are existing technologies, specifically including an automatic walking frame that is slidably installed on the transport robot's walking track A601. The automatic walking frame automatically walks and positions itself along the direction of the transport robot's walking track A601. A robotic arm is fixedly installed on the automatic walking frame, and a workpiece gripper is fixedly installed on the end of the robotic arm. The robotic arm works to drive the workpiece gripper to move and grasp and place the guide seat single piece and the guide seat single piece that has been initially welded.

[0042] In this embodiment, both the handling robot A602 and the handling robot B603 are equipped with a 3D vision system for taking pictures. The 3D vision system is existing technology.

[0043] With this design, the welding process at the automatic assembly station 1 for the single guide seat is as follows: First, the single guide seat piece is placed at the set position on the precision positioning frame 103. Then, the transport robot A602 picks up the single guide seat piece from the precision positioning frame 103 according to the process requirements and places it on the secondary centering table 105. Then, the positioned pieces on the secondary centering table 105 are picked up from the secondary centering table 105 and placed on the assembly fixture of the automatic assembly dual-axis positioner 102. The automatic assembly dual-axis positioner 102 performs positioning and clamping. The automatic assembly dual-axis positioner 102 can also drive the single guide seat piece to rotate and change its posture. With the cooperation of the single assembly arc welding robot 101, the assembled single guide seat piece is spot welded. The transport robot B603 removes the welded single guide seat piece and places it on the positioning buffer table 104.

[0044] In this embodiment, four component loading precision positioning frames 103 are provided on one side of the transport robot's walking track A601, and two sets of welding devices are provided on the other side of the transport robot's walking track A601, namely, two single-piece welding arc welding robots 101 and four single-piece automatic welding dual-axis positioners 102.

[0045] This design allows the A602 handling robot to precisely pick up parts from four component loading frames 103, then place them on four single-piece automatic pairing dual-axis positioners 102 for pairing and spot welding. This optimizes the pairing process for guide seat pieces, enables simultaneous spot welding of multiple guide seat pieces, improves welding quality and production speed, and enhances the overall performance.

[0046] In this embodiment, the single-piece automatic assembly dual-axis positioner 102 is existing technology. Specifically, it includes a clamping station with clamping components around its perimeter. After the assembled guide seat piece is placed on the clamping station, the clamping components clamp the guide seat piece to achieve positioning. A dual-axis drive component is provided on one side of the clamping station. The dual-axis drive component drives the clamping station and the guide seat piece to rotate and change their posture. In turn, with the cooperation of the single-piece assembly arc welding robot 101, the welding operation of the guide seat piece can be conveniently performed, improving the usage effect.

[0047] In this embodiment, the overall structure of the component loading precision positioning frame 103 includes a frame 1031. Multiple feeding plates 1032 are provided on the upper surface of the frame 1031. Multiple placement positions are provided on the feeding plates 1032. The placement positions are used to stack and place different guide seat single-piece components. Multiple positioning pins 1033 are fixedly installed at each placement position according to the shape of the guide seat single-piece component. The positioning pins 1033 are used to position the guide seat single-piece component placed at the placement position for easy use.

[0048] In this embodiment, each component mounting frame 103 has at least one set of individual components for assembling the guide seat piece, which is convenient to use.

[0049] In this embodiment, the single-chip team arc welding robot 101 is the prior art. Its specific structure includes a robotic arm, and an arc welding gun is fixedly installed at the front end of the robotic arm. The robotic arm works to drive the arc welding gun to move in multiple directions, and the arc welding gun works to perform spot welding operations.

[0050] In this embodiment, the secondary alignment platform 105 is existing technology. The function of the secondary alignment platform 105 is to temporarily store the loose parts picked up by the handling robot A602 each time, and to perform preliminary positioning of the loose parts.

[0051] In this embodiment, the positioning buffer platform 104 is existing technology. The positioning buffer platform 104 is used to temporarily store the guide seat pieces that have been spot-welded. The single-piece automatic teaming dual-axis positioner 102 and the single-piece teaming arc welding robot 101 work together to perform spot welding operations on the guide seat pieces. The spot-welded guide seat pieces are taken out by the handling robot B603 and placed on the positioning buffer platform 104. At this time, the positioning buffer platform 104 is used to temporarily store the spot-welded guide seat pieces.

[0052] The single-piece robot automatic welding station 2 is used to take out the guide seat single piece temporarily stored on the positioning buffer table 104 and perform re-welding.

[0053] The transport robot B603 is positioned between the guide seat single-piece automatic assembly station 1 and the single-piece robot automatic welding station 2. The transport robot B603 works to remove the guide seat single piece from the positioning buffer platform 104 and transport it to the single-piece robot automatic welding station 2.

[0054] The single-piece robot automatic welding station 2 consists of a single-piece automatic arc welding robot 201, a single-piece automatic arc welding dual-axis positioner 202, a plate chain conveyor line 203, and a handling robot C604. There are six sets of single-piece automatic arc welding robots 201, and the six sets of single-piece automatic arc welding robots 201 are evenly arranged on both sides of the walking track A601 of the handling robot. Each set of single-piece automatic arc welding robots 201 has a single-piece automatic arc welding dual-axis positioner 202 on one side.

[0055] The plate chain conveyor line 203 consists of two sets, and the two sets of plate chain conveyor lines 203 are set on both sides of the walking track A601 of the handling robot and close to the manual teaming station 3 of the guide seat assembly.

[0056] The transport robot C604 is mounted on the transport robot walking track A601 and is used to pick up the guide seat piece that has been welded on the single-piece automatic arc welding dual-axis positioner 202 and place it on the plate chain conveyor line 203.

[0057] In this embodiment, the workflow of the single-piece robot automatic welding station 2 is as follows: the transport robot B603 picks up the guide seat single piece placed on the positioning buffer table 104 and places it on the fixture of the single-piece automatic arc welding dual-axis positioner 202. The fixture automatically positions and clamps the guide seat single piece, and the single-piece automatic arc welding dual-axis positioner 202 can drive the clamped guide seat single piece to rotate and change its posture. The single-piece automatic arc welding robot 201 works to perform welding operations on the welding guide seat single piece. Then, the transport robot C604 works to remove the welded guide seat single piece from the single-piece automatic arc welding dual-axis positioner 202 and place it on the plate chain conveyor line 203, which transports it to the guide seat assembly manual assembly station 3.

[0058] In this embodiment, the single-piece automatic arc welding robot 201 is the prior art. Its specific structure includes a robotic arm, and an arc welding gun is fixedly installed at the front end of the robotic arm. The robotic arm works to drive the arc welding gun to move in multiple directions, and the arc welding gun works to perform welding operations.

[0059] In this embodiment, the single-piece automatic arc welding dual-axis positioner 202 is existing technology. Specifically, it includes a fixture, which is used to clamp the guide seat piece after spot welding to achieve positioning of the guide seat piece. A dual-axis drive assembly is provided on one side of the fixture, which is used to drive the fixture and the guide seat piece to rotate and change their posture. In this way, through the cooperation of the single-piece automatic arc welding robot 201, the welding operation of the guide seat piece can be conveniently performed, improving the usage effect.

[0060] The plate chain conveyor line 203 includes a plate chain conveyor belt. A support roller is provided on the inner side of the plate chain conveyor belt to support the plate chain conveyor belt to rotate. The support roller is rotatably mounted on a support frame. A servo motor is provided on the support frame to drive the support roller to rotate. The servo motor works to drive the support roller to rotate, thereby driving the plate chain conveyor belt to rotate. The plate chain conveyor belt is used to transport the welded guide seat pieces.

[0061] The manual assembly station 3 for the guide seat assembly consists of a KBK electric hoisting system A301, a manual assembly platform 302, a manual arc welding machine A303, a component loading frame 304, a sliding conveyor platform 305, and a buffer platform A306. The sliding conveyor platform 305 has a certain guide seat positioning capability, which facilitates the grabbing of the robot in subsequent workstations. The manual assembly platform 302 is used to assemble two symmetrical guide seats into a guide seat assembly and facilitates manual grinding and inspection.

[0062] The workflow of the manual assembly station 3 for the guide seat assembly is as follows: The handling robot C604 places the welded guide seat piece on the plate chain conveyor line 203. The worker uses the KBK electric hoisting system A301 to hoist the workpieces to be assembled to the assembly manual assembly platform 302. The worker assembles the two symmetrical guide seat pieces and uses the manual arc welding machine A303 to spot weld and fix the assembled guide seat. After spot welding and fixing, the guide seat is hoisted to the sliding conveyor platform 305 by the KBK electric hoisting system A301. If the sliding conveyor platform 305 is full, the spot-welded guide seat can be placed on the buffer platform A306 for temporary storage.

[0063] In this embodiment, the manual arc welding machine A303 is existing technology, and the worker can use a handheld arc welding gun to spot weld and fix the assembled guide seat.

[0064] In this embodiment, the assembly manual team formation platform 302 is the prior art. It specifically includes a team formation position, and tightening components are respectively arranged around the team formation position. The worker places two symmetrical guide seat pieces at the team formation position, and then uses the tightening components to assemble the two symmetrical guide seat pieces. Then, the assembled guide seats are spot welded and fixed by a manual arc welding machine A303.

[0065] In this embodiment, the KBK electric hoisting system A301 is existing technology, which can lift individual guide seats, making it convenient for workers to move individual guide seats and assembled guide seats.

[0066] In this embodiment, the buffer platform A306 is a prior art technology, and its specific structure is a frame body, which is used to temporarily store the guide seat after spot welding is completed.

[0067] The assembly robot automatic welding station 4 consists of an assembly automatic arc welding robot 401, an assembly automatic arc welding dual-axis positioner 402, a transport robot walking track B605, and a transport robot D606. There are ten sets of assembly automatic arc welding robots 401, and the ten sets of assembly automatic arc welding robots 401 are symmetrically distributed on both sides of the transport robot walking track B605. Each side of the assembly automatic arc welding robot 401 is equipped with an assembly automatic arc welding dual-axis positioner 402.

[0068] The transport robot's walking track B605 is arranged horizontally in a straight line, and the transport robot D606 is installed on the transport robot's walking track B605. The transport robot D606 can move automatically on the transport robot's walking track B605.

[0069] The workflow at the assembly robot automatic welding station 4 is as follows: the handling robot D606 takes out the spot-welded guide seat from the sliding conveyor platform 305 and places it on the fixture of the assembly automatic arc welding dual-axis positioner 402. At this time, the assembly automatic arc welding dual-axis positioner 402 clamps the guide seat and drives the guide seat to rotate and change its posture. Then, the assembly automatic arc welding robot 401 performs welding operations on the guide seat. After welding is completed, the handling robot D606 removes the welded guide seat and transports it to the assembly manual repair welding station 5.

[0070] In this embodiment, the overall structure of the automated arc welding robot 401 includes a robotic arm, with an arc welding gun fixedly mounted at the front end of the robotic arm. The robotic arm is used to drive the arc welding gun to move in multiple directions, and the arc welding gun is used to perform welding operations.

[0071] In this embodiment, the overall structure of the assembly automatic arc welding dual-axis positioner 402 includes a fixture, which is used to clamp the guide seat after spot welding to achieve positioning of the guide seat. A dual-axis drive assembly is provided on one side of the fixture, which is used to drive the fixture and the guide seat to rotate and change their posture. In turn, through the cooperation of the assembly automatic arc welding robot 401, the guide seat can be easily welded, improving the usage effect.

[0072] In this embodiment, the handling robot D606 includes an automatic walking frame that is slidably mounted on the handling robot walking track B605. The automatic walking frame automatically walks and positions itself along the direction of the handling robot walking track B605. A robotic arm is fixedly mounted on the automatic walking frame, and a workpiece gripper is fixedly mounted on the end of the robotic arm. The robotic arm works to drive the workpiece gripper to move and grasp and place the guide seat, thereby realizing the handling of the guide seat.

[0073] The transport robot's walking track B605 extends from one side of the assembly robot's automatic welding station 4 to the position of the assembly manual welding station 5.

[0074] The assembly manual welding station 5 consists of a KBK electric hoisting system B501, an assembly manual welding dual-axis positioner 502, a manual arc welding machine B503, a buffer platform B504, and a finished product precision positioning unloading frame 505. The main work of the assembly manual welding station 5 is to use the manual arc welding machine B503 to manually weld the guide seat and perform manual grinding and inspection.

[0075] In this embodiment, there are two assembly manual welding dual-axis positioners 502, and the two assembly manual welding dual-axis positioners 502 are arranged on one side of the walking track B605 of the handling robot and spaced apart. The assembly manual welding dual-axis positioners 502 are used to clamp the guide seat to be welded.

[0076] The finished product precision positioning unloading frame 505 is located on the other side of the transport robot's walking track B605, and the buffer platform B504 is located on the side of the finished product precision positioning unloading frame 505 close to the assembly robot's automatic welding station 4.

[0077] The workflow of the assembly manual welding station 5 is as follows: The handling robot D606 takes out the guide seats that have been welded at the assembly robot automatic welding station 4 and places them on the fixture of the assembly manual welding dual-axis positioner 502. If the assembly manual welding dual-axis positioner 502 is full of guide seats, the guide seats can be placed on the buffer platform B504 for temporary storage. Then, the worker uses the welding gun of the manual arc welding machine B503 to perform welding and grinding operations on the guide seats. After completion, the guide seats are stacked into the finished product precise positioning lower part frame 505 by the KBK electric hoisting system B501.

[0078] The present invention also provides an automated welding production method for guide seats. Based on the above-mentioned automated welding production line for guide seats, the production method is carried out according to the following steps:

[0079] Step 1: Place the individual guide seat parts to be assembled into their respective positions on the precision positioning frame 103 of the parts, and then start the automated welding production line for the guide seats.

[0080] Step 2: At the automatic assembly station 1 for single guide seat pieces, the handling robot A602 picks up the single guide seat pieces from the component loading precision positioning frame 103 according to the process requirements and places them on the secondary centering platform 105. Then, the positioned components on the secondary centering platform 105 are picked up from the secondary centering platform 105 and placed on the assembly fixture of the single-piece automatic assembly dual-axis positioner 102. The single-piece automatic assembly dual-axis positioner 102 performs positioning and clamping. The single-piece automatic assembly dual-axis positioner 102 can also drive the single guide seat piece to rotate and change its posture. With the cooperation of the single-piece assembly arc welding robot 101, the assembled single guide seat piece is spot welded. The handling robot B603 removes the welded single guide seat piece and places it on the positioning buffer platform 104.

[0081] Step 3: At the position of the single-piece robot automatic welding station 2, the transport robot B603 picks up the guide seat single piece placed on the positioning buffer table 104 and places it on the fixture of the single-piece automatic arc welding dual-axis positioner 202. The fixture automatically positions and clamps, and the single-piece automatic arc welding dual-axis positioner 202 can drive the clamped guide seat single piece to rotate and change its posture. The single-piece automatic arc welding robot 201 works to perform welding operations on the welding guide seat single piece. Then, the transport robot C604 works to remove the welded guide seat single piece from the single-piece automatic arc welding dual-axis positioner 202 and place it on the plate chain conveyor 203, which transports it to the guide seat assembly manual assembly station 3.

[0082] Step 4: At position 3 of the manual assembly station for the guide seat assembly, the worker uses the KBK electric hoisting system A301 to hoist the workpieces to be assembled onto the manual assembly platform 302. The worker assembles the two symmetrical guide seat pieces and uses the manual arc welding machine A303 to spot weld and fix the assembled guide seats. After spot welding and fixing, the guide seats are used to lift the workpieces onto the sliding conveyor platform 305 using the KBK electric hoisting system A301. If the sliding conveyor platform 305 is full, the spot-welded guide seats can be placed on the buffer platform A306 for temporary storage.

[0083] Step 5: At the automatic welding station 4 of the assembly robot, the handling robot D606 removes the spot-welded guide seat from the sliding conveyor platform 305 and places it on the fixture of the assembly automatic arc welding dual-axis positioner 402. At this time, the assembly automatic arc welding dual-axis positioner 402 clamps the guide seat and drives the guide seat to rotate and change its posture. Then, the assembly automatic arc welding robot 401 performs welding operations on the guide seat. After welding is completed, the handling robot D606 removes the welded guide seat and transports it to the assembly manual repair welding station 5.

[0084] Step Six: At the assembly manual welding station 5, the transport robot D606 takes out the guide seat that has been welded at the assembly robot automatic welding station 4 and places it on the fixture of the assembly manual welding dual-axis positioner 502. If the assembly manual welding dual-axis positioner 502 is full of guide seats, the guide seats can be placed on the buffer platform B504 for temporary storage. Then, the worker uses the welding gun of the manual arc welding machine B503 to perform welding and grinding operations on the guide seats. After processing, the guide seats are stacked into the finished product precision positioning unloading frame 505 using the KBK electric hoisting system B501.

[0085] For those skilled in the art, any changes, modifications, substitutions, and variations made to the embodiments without departing from the principles and spirit of the present invention, based on the teachings of the present invention, still fall within the protection scope of the present invention.

Claims

1. An automated welding production line for guide seats, characterized in that: It consists of an automatic assembly station for single guide seats (1), an automatic welding station for single-piece robots (2), a manual assembly station for guide seat assemblies (3), an automatic welding station for assemblies (4), and a manual repair welding station for assemblies (5). The automatic assembly station for single guide seats (1), the automatic welding station for single-piece robots (2), the manual assembly station for guide seat assemblies (3), the automatic welding station for assemblies (4), and the manual repair welding station for assemblies (5) are arranged in a straight line on the production site according to the production process sequence. The automatic assembly station for single guide seats (1) includes a transport robot walking track A (601), through which the transport robot walks. Track A (601) is arranged horizontally in a straight line. Transport robots A (602) and B (603) are mounted on track A (601). At least one set of component positioning frames (103) for storing single-piece guide components is provided on one side of track A (601). At least one set of welding assembly devices is provided on the other side of track A (601). The welding assembly device includes a single-piece welding arc welding robot (101). A secondary centering platform is provided between the single-piece welding arc welding robot (101) and track A (601). (105), single-piece automatic welding robot (101) is equipped with single-piece automatic welding dual-axis positioners (102) on both sides; positioning buffers (104) are respectively set on both sides of the walking track A (601) of the transport robot near the single-piece robot automatic welding station (2); the single-piece robot automatic welding station (2) is composed of single-piece automatic welding robot (201), single-piece automatic welding dual-axis positioner (202), plate chain conveyor (203) and transport robot C (604), of which six sets of single-piece automatic welding robot (201) are provided, and the six sets of single-piece automatic welding robot (202) are equipped with single-piece automatic welding robot (202) and ... 1) The single automatic arc welding robot (201) is set on both sides of the walking track A (601) of the transport robot. Each single automatic arc welding robot (201) is equipped with a single automatic arc welding dual-axis positioner (202) on one side. The plate chain conveyor (203) consists of two sets, and the two sets of plate chain conveyor (203) are set on both sides of the walking track A (601) of the transport robot and close to the manual assembly station (3) of the guide seat assembly. The transport robot C (604) is set on the walking track A (601) of the transport robot and is used to pick up the guide seat piece that has been welded on the single automatic arc welding dual-axis positioner (202) and place it on the plate chain conveyor (203).The manual assembly station (3) for the guide seat assembly consists of a KBK electric hoisting system A (301), a manual assembly platform (302), a manual arc welding machine A (303), a component loading frame (304), a sliding conveyor platform (305), and a buffer platform A (306). The sliding conveyor platform (305) has the ability to position the guide seat, facilitating the grabbing by the robot at subsequent workstations. The manual assembly platform (302) is used to assemble two symmetrical guide seat pieces into a single guide seat assembly. The manual arc welding machine A (303) is used to spot weld and fix the guide seat. The KBK electric hoisting system A (301) can lift individual guide seat pieces.

2. The automated welding production line for guide seats according to claim 1, characterized in that: The assembly robot automatic welding station (4) consists of an assembly automatic arc welding robot (401), an assembly automatic arc welding dual-axis positioner (402), a transport robot walking track B (605), and a transport robot D (606). There are ten sets of assembly automatic arc welding robots (401), and the ten sets of assembly automatic arc welding robots (401) are symmetrically distributed on both sides of the transport robot walking track B (605). Each side of the assembly automatic arc welding robot (401) is equipped with a set of assembly automatic arc welding dual-axis positioner (402).

3. The automated welding production line for guide seats according to claim 2, characterized in that: The transport robot's walking track B (605) is arranged horizontally in a straight line. The transport robot's walking track B (605) extends from one side of the assembly robot's automatic welding station (4) to the position of the assembly's manual welding station (5). The transport robot D (606) is set on the transport robot's walking track B (605). The transport robot D (606) takes out the guide seat that has been spot-welded on the sliding conveyor platform (305) and places it on the fixture of the assembly's automatic arc welding dual-axis positioner (402).

4. The automated welding production line for guide seats according to claim 3, characterized in that: The assembly manual welding station (5) consists of a KBK electric hoisting system B (501), an assembly manual welding dual-axis positioner (502), a manual arc welding machine B (503), a buffer platform (504), and a finished product precision positioning unloading frame (505). The assembly manual welding dual-axis positioner (502) is used to clamp the guide seat, and then the manual arc welding machine B (503) is used to manually weld and manually grind and inspect the guide seat.

5. A method for automated welding production of guide seats, based on the automated welding production line for guide seats as described in claim 4, characterized in that, The production method is carried out in the following steps: Step 1: Place the individual guide seat pieces to be assembled in sequence on the placement position of the component upper part precision positioning material frame (103), and then start the automated welding production line for the guide seat; Step 2: At the position of the guide seat single piece automatic assembly station (1), the handling robot A (602) works according to the process requirements to grab the individual guide seat pieces from the component upper part precision positioning material frame (103) and place them on the secondary centering table (105). Then, the positioned individual pieces are grabbed from the secondary centering table (105) and placed on the assembly fixture of the single piece automatic assembly dual-axis positioner (102) and positioned and clamped. The single piece automatic assembly dual-axis positioner (102) is used to drive the guide seat pieces to rotate and change posture. The guide seat piece is spot welded by the single-piece team arc welding robot (101) and the transport robot B (603) removes the welded guide seat piece and places it on the positioning buffer table (104); Step 3: At the position of the single-piece robot automatic welding station (2), the transport robot B (603) picks up the guide seat piece placed on the positioning buffer table (104) and places it on the fixture of the single-piece automatic arc welding dual-axis positioner (202) and performs automatic positioning and clamping. The single-piece automatic arc welding dual-axis positioner (202) is used to drive the clamped guide seat piece to rotate and change its posture. The single-piece automatic arc welding robot (201) is used to perform welding operation on the welding guide seat piece, and then the transport robot Robot C (604) removes the welded guide seat piece from the single-piece automatic arc welding dual-axis positioner (202) and places it on the plate chain conveyor line (203), which then transports it to the guide seat assembly manual assembly station (3). Step 4: At the guide seat assembly manual assembly station (3), the worker uses the KBK electric hoisting system A (301) to hoist the workpiece to be assembled onto the assembly manual assembly platform (302). The worker assembles the two symmetrical guide seat pieces and uses the manual arc welding machine A (303) to spot weld and fix the assembled guide seat. After spot welding and fixing, the guide seat is hoisted onto the sliding conveyor platform (305) using the KBK electric hoisting system A (301). If the sliding conveyor platform (305) is full, place the spot-welded guide seat on the buffer platform A (306) for temporary storage; Step 5: At the position of the assembly robot automatic welding station (4), the transport robot D (606) takes out the spot-welded guide seat from the sliding conveyor platform (305) and places it on the fixture of the assembly automatic arc welding dual-axis positioner (402) for clamping. The assembly automatic arc welding dual-axis positioner (402) drives the guide seat to rotate and change its posture. Then the assembly automatic arc welding robot (401) performs welding operations on the guide seat. After welding is completed, the transport robot D (606) takes the welded guide seat off and transports it to the assembly manual welding station (5).Step Six: At the position of the assembly manual welding station (5), the handling robot D (606) takes out the guide seat that has been welded at the assembly robot automatic welding station (4) and places it on the fixture of the assembly manual welding dual-axis positioner (502). If the assembly manual welding dual-axis positioner (502) is full of guide seats, the guide seats can be temporarily placed on the buffer platform (504). Then, the worker uses the welding gun of the manual arc welding machine B (503) to perform welding and grinding operations on the guide seats. After the processing is completed, the guide seats are stacked into the finished product precision positioning unloading frame (505) by the KBK electric hoisting system B (501).

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