Automatic welding production line for parts

Abstract

The automatic welding production line comprises a flexible workbench, ground rails parallel to each other in the length direction are arranged on the two sides of the flexible workbench, a plurality of supporting plates capable of moving in the length direction of the ground rails are arranged above the ground rails, and robots are installed on the surfaces of the supporting plates; a visual identification module capable of moving in the length direction of the flexible workbench is arranged above the flexible workbench. The design structure is reasonable, the flexible workbench is arranged in the middle, the movable welding robots are arranged on the two sides of the flexible workbench correspondingly, during welding work, the welding robots on the two sides can be matched with each other to weld parts, the problem that the arm extension range is limited can be solved through movement during welding, and the welding efficiency is improved. And automatic operation of welding work is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of component welding, and in particular relates to an automatic welding production line for components. Background Art

[0002] At present, when welding parts, the traditional manual welding method has been gradually replaced by welding robots. Among them, welding robots are industrial robots used for automatic welding. They are widely used in welding operations that are repetitive, monotonous, and long-term, or welding operations in high-risk and harsh environments. They have the characteristics of high productivity, high quality, and high stability.

[0003] However, since the existing welding robots are installed in designated locations in the workshop, their arm span is limited, and some parts have characteristics such as multiple welding positions and complex welding processes, the traditional robot welding method can no longer meet production needs. Therefore, an automated welding production line for parts is urgently needed to solve the above problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automated welding production line for parts, in which a flexible workbench is arranged in the middle position, and movable welding robots are respectively arranged on both sides. When welding, the welding robots on both sides can cooperate with each other to weld the parts, and during welding, movement can be used to solve the problem of limited arm span range, thereby realizing the automated operation of the welding work.

[0005] The technical solution adopted by the present invention is: an automated welding production line for parts, comprising a flexible workbench, two sides of the flexible workbench are provided with ground rails parallel to each other in length direction, a plurality of pallets capable of moving along the length direction of the ground rails are arranged above the ground rails, a robot is installed on the surface of the pallet, and a visual recognition module capable of moving along the length direction of the flexible workbench is arranged above the flexible workbench; The method of using this automated welding production line is as follows: manually place the parts to be welded into the fixture on the flexible workbench, use the visual recognition module to take pictures of the parts and identify the welding position, and then use the robot to automatically weld the parts. During welding, due to the limited arm span of the robot, it can move along the length of the ground rail to increase the robot's operating radius.

[0006] Guardrails are installed on the ground outside the flexible workbench and the ground rails on both sides.

[0007] The ground rail comprises a plurality of long strip main frames, two adjacent main frames are connected end to end, and bottom plates arranged at equal intervals are connected below the main frames, and anchor bolts are connected to the bottom plates.

[0008] The ends of the main frames are provided with splicing installation plates for connecting two adjacent main frames, guide rails are installed at both sides of the upper surface of the main frames, and racks are also installed on the upper surface of the main frames.

[0009] Slide blocks are fixed at both sides of the lower side of the support plate, and the slide blocks are slidably connected to the guide rails.

[0010] The upper surface of the support plate has a robot mounting surface for mounting the robot, and the robot is mounted on the robot mounting surface by bolts.

[0011] A reducer is installed on the upper surface of the support plate, a motor is connected to the reducer, and an output shaft of the reducer passes through the support plate downward and is installed with a transmission gear.

[0012] A lubrication pump is installed on the upper surface of the support plate, and a lubrication gear is arranged on the lower surface of the support plate.

[0013] A limit sensor is installed on the lower surface of the support plate near the end, and a plurality of limit plates are provided on the ground rail. The limit sensor can detect the position of the limit plates, thereby limiting the position of the support plate.

[0014] A traveling frame which can move along the length direction of the flexible workbench is arranged above the flexible workbench, and the visual recognition module is installed in the middle position of the traveling frame.

[0015] The beneficial effects of the present invention are: The present invention has a reasonable design structure. The flexible workbench is arranged in the middle position, and movable welding robots are respectively arranged on both sides. When welding work is performed, the welding robots on both sides can cooperate with each other to weld parts, and the movement can be used during welding to solve the problem of limited arm span range, thereby realizing the automated operation of the welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall layout diagram of the present invention; Figure 2 The three-dimensional structure of the support plate of the present invention Figure 1 ; Figure 3 The three-dimensional structure of the support plate of the present invention Figure 2 ; Figure 4 is a three-dimensional diagram of the ground rail of the present invention; Figure 5 This is an installation structure diagram of the visual recognition module of the present invention.

[0017] Among them: 1. Flexible workbench; 2. Walking frame; 3. Visual recognition module; 4. Robot; 5. Pallet; 6. Ground rail; 7. Guardrail; 8. Robot mounting surface; 9. Motor; 10. Reducer; 11. Lubrication pump; 12. Transmission gear; 13. Lubrication gear; 14. Limit sensor; 15. Slider; 16. Main frame; 17. Bottom plate; 18. Limit plate; 19. Splicing mounting plate; 20. Rack; 21. Guide rail. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] As shown in the figure, an automated welding production line for parts includes a flexible workbench 1, wherein the flexible workbench 1 is a device used for welding operations, which has certain flexibility and versatility to adapt to welding workpieces of different shapes and sizes. Its structure and principle belong to conventional designs in the prior art and will not be described in detail here. This type of workbench usually has multiple holes and adjustable fixtures, allowing the user to fix and position the workpiece as needed to achieve precise welding. That is, in this example, the tooling fixture can be fixed to the flexible workbench 1 first, and then the parts to be welded can be installed on the tooling fixture. In this way, the consistency of the parts after installation can be ensured, which is convenient for the automated welding work of the robot 4.

[0020] The flexible workbench 1 has ground rails 6 on both sides thereof which are parallel to each other in the length direction. A plurality of pallets 5 which can move along the length direction of the ground rails 6 are arranged above the ground rails 6. A robot 4 is installed on the surface of the pallet 5. Different types of welding guns are installed on the working arm of the robot 4. In this example, the robot 4 is an ABB brand robot 4, model IRB2600, which has the functions of material handling, welding, gluing, etc. A visual recognition module 3 which can move along the length direction of the flexible workbench 1 is arranged above the flexible workbench 1; The method of using the automated welding production line is as follows: manually place the parts to be welded into the fixture on the flexible workbench 1, use the visual recognition module 3 to take pictures of the parts and identify the welding position, and then use the robot 4 to automatically weld the parts. During welding, due to the limited arm span of the robot 4, it can move along the length direction of the ground rail 6 to increase the operating radius of the robot 4.

[0021] A guardrail 7 is installed on the ground outside the flexible workbench 1 and the ground rails 6 on both sides, which is used to prevent personnel from entering the operating range of the robot 4 during the operation of the robot 4 to prevent accidents. In addition, a safety door lock is provided on the guardrail 7 for personnel to enter the working area for equipment maintenance. The safety door lock has an interlocking function with the automated production line, that is, after the safety door is opened, the production line automatically stops.

[0022] The ground rail 6 includes a plurality of long strip main frames 16, wherein two adjacent main frames 16 are connected end to end, and bottom plates 17 arranged at equal intervals are connected to the bottom of the main frames 16, and anchor bolts are connected to the bottom plates 17, wherein the bottom plates 17 and the main frames 16 are connected by welding, and the ground rail 6 is firmly fixed to the ground by the anchor bolts, thereby improving the stability of the robot 4 during movement.

[0023] Specifically, a splicing mounting plate 19 for connecting two adjacent main frames 16 is provided at the end of the main frame 16, guide rails 21 are installed at both sides of the upper surface of the main frame 16, and a rack 20 is also installed on the upper surface of the main frame 16. More specifically, sliders 15 are fixed at both sides of the lower side of the pallet 5, and the sliders 15 are slidably connected to the guide rails 21 to enable the pallet 5 to move along the length direction of the ground rail 6, wherein a reducer 10 is installed on the upper surface of the pallet 5, and a motor 9 is connected to the reducer 10. The output shaft of the reducer 10 passes through the pallet 5 downward and is installed with a transmission gear 12, and the transmission gear 12 can mesh with the rack 20 to realize the movement of the pallet 5; the motor 9 is a servo motor 9, and a limit sensor 14 is installed at a position near the end of the lower surface of the pallet 5, and a plurality of limit plates 18 are provided on the ground rail 6. The limit sensor 14 can detect the position of the limit plate 18, thereby realizing the limitation of the position of the pallet 5, which can be used to monitor the moving position of the pallet 5.

[0024] The upper surface of the support plate 5 has a robot mounting surface 8 for mounting the robot 4 , and the robot 4 is mounted on the robot mounting surface 8 by bolts.

[0025] A lubrication pump 11 is installed on the upper surface of the support plate 5, and a lubrication gear 13 is provided on the lower surface of the support plate 5. The lubrication gear 13 is rotatable. A container for storing lubricating oil is also provided on the support plate 5. The lubrication pump 11 can transport the lubricating oil downward through the lubricating oil pipe, specifically to the tooth position of the lubricating gear 13. When working, the lubrication gear 13 can also mesh with the rack 20, mainly used to provide lubrication effect for the rack 20 and the transmission gear 12. Since the lubrication system is also integrated on the support plate 5, the length of the lubrication oil pipe can be greatly reduced, the distribution of the lubricating oil can be more sufficient and reasonable, and the failure of the lubrication system can be reduced.

[0026] A traveling frame 2 capable of moving along the length direction of the flexible workbench 1 is arranged above the flexible workbench 1. The visual recognition module 3 is installed in the middle position of the traveling frame 2. The traveling frame 2 is a portal structure and also uses a linear slide rail to achieve movement. The driving source is a motor 9, which is mainly used to achieve the movement of the visual recognition module 3 above the flexible workbench 1. The visual recognition module 3 is used to monitor the position of components, thereby providing an accurate position basis for the subsequent welding work of the robot 4.

[0027] The automated welding production line also includes a control system, mainly a Siemens 1200PL control system, which is used to facilitate system programming, debugging, expansion and maintenance, and achieve efficient, stable and safe automated control, thereby improving production efficiency and product quality.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automated welding production line for parts, characterized in that: The invention comprises a flexible workbench, wherein two sides of the flexible workbench are provided with ground rails which are parallel to each other in length direction, a plurality of pallets which can move along the length direction of the ground rails are arranged above the ground rails, a robot is installed on the surface of the pallets, and a visual recognition module which can move along the length direction of the flexible workbench is arranged above the flexible workbench; The method of using this automated welding production line is as follows: manually place the parts to be welded into the fixture on the flexible workbench, use the visual recognition module to take pictures of the parts and identify the welding position, and then use the robot to automatically weld the parts. During welding, due to the limited arm span of the robot, it can move along the length of the ground rail to increase the robot's operating radius.

2. The automatic welding production line for parts according to claim 1 is characterized in that: Protective fences are installed on the ground outside the flexible workbench and the ground rails on both sides.

3. The automatic welding production line for parts according to claim 1 is characterized in that: The ground rail comprises a plurality of long strip main frames, two adjacent main frames are connected end to end, and bottom plates arranged at equal intervals are connected below the main frames, and anchor bolts are connected to the bottom plates.

4. The automatic welding production line for parts according to claim 3 is characterized in that: The ends of the main frames are provided with splicing installation plates for connecting two adjacent main frames, guide rails are installed at both sides of the upper surface of the main frames, and racks are also installed on the upper surface of the main frames.

5. The automatic welding production line for parts according to claim 4 is characterized in that: Slide blocks are fixed at both sides of the lower side of the support plate, and the slide blocks are slidably connected to the guide rails.

6. The automatic welding production line for parts according to claim 1 is characterized in that: The upper surface of the support plate has a robot mounting surface for mounting the robot, and the robot is mounted on the robot mounting surface by bolts.

7. The automatic welding production line for parts according to claim 1 is characterized in that: A reducer is installed on the upper surface of the support plate, a motor is connected to the reducer, and an output shaft of the reducer passes through the support plate downward and is installed with a transmission gear.

8. The automatic welding production line for parts according to claim 1 is characterized in that: A lubrication pump is installed on the upper surface of the support plate, and a lubrication gear is arranged on the lower surface of the support plate.

9. The automatic welding production line for parts according to claim 1, characterized in that: A limit sensor is installed on the lower surface of the support plate near the end, and a plurality of limit plates are provided on the ground rail. The limit sensor can detect the position of the limit plate, thereby limiting the position of the support plate.

10. The automatic welding production line for parts according to claim 1, characterized in that: A traveling frame which can move along the length direction of the flexible workbench is arranged above the flexible workbench, and the visual recognition module is installed in the middle position of the traveling frame.

Images