A robot arm welding device for automobile parts processing

Abstract

The application provides a robot automatic arm welding device for automobile part machining, and relates to the technical field of automatic arm welding.The robot automatic arm welding device comprises a welding machine and a welding mechanism.The welding machine comprises a mechanical arm and a mechanical base.The welding mechanism comprises a first protection box, a second protection box, a wire feeding assembly, a connecting pipe and a wire guide pipe.The wire feeding assembly comprises a welding wire reel, a wire guide roller, a guide pipe, a wire feeding roller, a wire feeding gear, a support plate, a first main gear and a first driving motor.The welding machine and the wire feeding assembly are arranged to mount the wire feeding assembly in the middle of the mechanical arm, greatly shorten the distance between the wire feeding assembly and the welding torch, eliminate the wire shaking, ensure the wire feeding precision, improve the welding quality, ensure the production efficiency, and improve the use effect of the robot automatic arm welding device by blocking the vibration transmission path through the vibration isolation mounting seat.

Description

Technical Field

[0001] This invention belongs to the field of automated arm welding technology, and specifically relates to an automated arm welding device for automotive parts processing. Background Technology

[0002] From the perspective of automotive products, all system components, system assemblies, parts, components, and other related parts that make up a complete vehicle fall under the category of automotive parts. For example, engine assemblies, transmissions, brake pads, tires, seats, and airbags are all key units that make up a car. The core reason why automotive parts need welding is to achieve reliable connections between components to meet the requirements of structural strength, sealing performance, functional integration, and lightweighting. As a key process in automobile manufacturing, welding is applied in multiple fields such as body structure, chassis components, power systems, and new energy components, directly affecting the safety, reliability, and comfort of the car. Robotic arms are the core execution components of industrial robots. They are essentially mechatronic devices that mimic the functions of a human arm, wrist, and hand. Through multi-degree-of-freedom joint movements, they can achieve precise flexion, extension, rotation, and translation in three-dimensional space to complete various tasks in industrial production. Robotic arm welding devices are automated welding equipment that integrates industrial robotic arms and welding systems. They are an important branch of industrial robots, and their core function is to complete welding tasks accurately and efficiently.

[0003] In existing technologies, when using robotic welding arm devices, the wire feeding mechanism is usually installed at the base of the robotic arm. The wire feeding mechanism needs to deliver the welding wire to the welding torch through a long flexible tube. However, although the inner wall of the wire guide tube is polished, it still has a certain static friction coefficient. When the welding torch is far away from the wire spool during welding, the contact area between the welding wire and the inner wall increases, and the frictional resistance accumulates, which can easily cause the welding wire to crawl or vibrate. In addition, the long wire guide tube is prone to bending during installation or use, which can cause uneven pressure on the welding wire from the inner wall of the wire guide tube, resulting in vibration and unstable wire feeding. The vibration of the welding wire will cause the arc length to be unstable, resulting in uneven weld width and disordered ripples, thereby reducing the welding quality, causing low production efficiency, increased costs, and reduced effectiveness of the robotic welding arm device, failing to meet people's needs. Summary of the Invention

[0004] The purpose of this invention is to provide a robotic automatic arm welding device for automotive parts processing, which solves the technical problems in related technologies where wire feeding mechanisms cause wire vibration and unstable wire feeding, resulting in uneven weld width and disordered ripples, thereby reducing welding quality, causing low production efficiency, increased costs, and reduced effectiveness of robotic automatic arm welding devices.

[0005] To achieve the above objectives, embodiments of the present invention provide a robotic automatic arm welding device for automotive parts processing, comprising: a welding machine and a welding mechanism mounted on the welding machine. The welding machine includes a robotic arm and a mechanical base connected to the robotic arm. A welding torch is provided at the head of the robotic arm. The welding mechanism includes a first protective box located in the middle of the robotic arm and a second protective box located on one side of the first protective box. The welding mechanism further includes a wire feeding assembly disposed in the first and second protective boxes. A connecting pipe communicating with the second protective box is provided on the first protective box, and a wire guide tube is provided on the other side of the second protective box. One end of the wire guide tube is located at the welding torch and cooperates with the welding torch to perform welding work. The wire feeding assembly includes a welding wire spool rotatably disposed in the first protective box and a wire guide roller disposed on one side of the welding wire spool. A first rotating device for controlling the rotation of the welding wire spool can be installed in the first protective box. The welding wire on the welding wire spool passes through a guide roller and a connecting pipe into a second protective box. The inner wall of the second protective box is symmetrically provided with guide tubes for use with the welding wire. The wire feeding assembly includes a wire feeding roller symmetrically arranged in the second protective box and a wire feeding gear coaxially connected to the wire feeding roller. A support plate rotatably connected to the wire feeding roller is vertically arranged in the second protective box. The wire feeding roller and the wire feeding gear are respectively arranged on both sides of the support plate. The wire feeding assembly also includes a first main gear rotatably arranged on the support plate and meshing with two horizontally adjacent wire feeding gears. Two vertically adjacent wire feeding gears mesh with each other. A first drive motor is provided on one side of the first main gear, so that the first drive motor controls the two wire feeding gears to rotate in the same direction through the first main gear. The wire feeding gears mesh with adjacent wire feeding gears, causing the other wire feeding rollers to rotate, thereby enabling several wire feeding gears to control the wire feeding rollers to feed the welding wire.

[0006] In one possible implementation, the welding mechanism further includes a first cleaning component disposed inside the second protective box. The first cleaning component is capable of cleaning the welding wire that enters the second protective box. The first cleaning component includes a plurality of cleaning wipes symmetrically rotated in the second protective box and a cleaning strip disposed on one side of the cleaning wipes. The cleaning strip is horizontally aligned with the cleaning wipes.

[0007] In one possible implementation, the welding mechanism further includes a second cleaning component disposed at the bottom of the second protective box and aligned with the first cleaning component. The inner bottom surface of the second protective box has a first through groove. The second cleaning component includes a first connecting seat fixedly disposed at the bottom of the second protective box, a negative pressure fan detachably mounted at the bottom of the first connecting seat, and a second connecting seat disposed at the bottom of the negative pressure fan. Both the first and second connecting seats have a second through groove communicating with the negative pressure fan. The second through groove has a circular structure, allowing the negative pressure fan to discharge impurities removed by the cleaning wiping and cleaning strips from the second protective box. The second protective box is equipped with a temperature sensor and a flue gas sensor, enabling the negative pressure fan to perform air extraction, heat dissipation, and protection of the second protective box.

[0008] According to one aspect, the second cleaning assembly further includes a filter cover movably disposed inside the second connecting seat and a plurality of telescopic tubes arranged in a circular array vertically disposed on the top surface of the inner side of the second connecting seat. A telescopic rod movably disposed in the telescopic tube and vertically connected to the filter cover is provided in the telescopic tube. A return spring connected to the telescopic rod is provided in the telescopic tube. A first connecting block is provided at the outer edge of the filter cover and fits against the inner wall of the second connecting seat. A guide block extending into the interior of the second connecting seat is provided in the first connecting block. A plurality of guide grooves are provided on the second connecting seat and slidably connected to the guide blocks, so that when the negative pressure fan is working, the telescopic rod and the return spring control the filter cover to move up and down, thereby cleaning the filter cover.

[0009] According to one aspect, the second cleaning assembly further includes a first rotating block rotatably disposed on the top surface inside the filter cover and a first scraper disposed outside the first rotating block and used to clean the filter cover. The upper end of the filter cover is rotatably provided with a second rotating block coaxially connected to the first rotating block. The outer wall of the second rotating block has rotating blades arranged in a circular array, so that when the negative pressure fan is working, the second rotating block and the rotating blades cooperate to control the first scraper through the first rotating block to clean the filter cover.

[0010] In one possible implementation, the second cleaning component further includes a filter screen inclinedly disposed in the first connecting seat and a rotating ring rotatably disposed above the filter screen. The inner wall of the first connecting seat has a rotating groove that fits with the rotating ring. The inner wall of the rotating ring has a cleaning structure for fitting and cleaning the filter screen. The first connecting seat has a discharge box that matches the lowest point of the filter screen. The bottom end of the first connecting seat has a collection box aligned with the discharge box. The outer wall of the first connecting seat has a mounting component. The top end of the collection box has a mounting block that is fixed to the mounting component.

[0011] According to one aspect, the cleaning structure includes a circular block disposed at the center of a rotating ring and a second scraper arranged in a circular array on the circular block, one end of the second scraper being fixed perpendicularly to the inner wall of the rotating ring, and the bottom end of the second scraper being attached to a filter screen.

[0012] According to one aspect, the second cleaning assembly further includes a rotating external gear ring disposed on the outer wall of the rotating ring and a second main gear meshing with the rotating external gear ring, a second drive motor disposed below the second main gear, the second main gear being disposed on the first connecting seat and aligned with the highest point of the filter screen, such that the second drive motor and the second main gear control the rotating ring to rotate through the rotating external gear ring.

[0013] According to one aspect, the second cleaning assembly further includes a sealing plate fitted above the feed box and a reciprocating screw drive structure for controlling the movement of the sealing plate. One end of the reciprocating screw drive structure is coaxially provided with a bevel gear structure, on which a first rotating gear is provided. A second rotating gear meshes with one side of the first rotating gear. The lower side of the outer wall of the rotating ring is provided with a plurality of rotating tooth blocks symmetrical to the second scraper in a circular array. The first connecting seat is provided with rotating tooth grooves that match the rotating tooth blocks. The rotating tooth blocks can also serve as guides and limiters. The second rotating gear and the rotating tooth blocks mesh, so that the rotating tooth blocks can control the reciprocating screw drive structure to work through the cooperation of the second rotating gear, the first rotating gear and the bevel gear structure. When the second scraper rotates towards the feed box, the sealing plate gradually opens the feed box, and when the second scraper leaves the feed box, the sealing plate gradually closes the feed box.

[0014] In one possible implementation, the second scraper is provided with a feeding assembly, which assists the second scraper in scraping impurities on the filter screen into a feeding box. The feeding assembly includes a feeding block movably disposed on the second scraper and attached to the filter screen, and a fixing block disposed on the feeding block and attached to the outer wall of the second scraper. The fixing block is provided with a moving block movably connected to the second scraper. The second scraper has a moving groove that matches the moving block. A weight block is provided inside the second scraper. The weight block is connected to the moving block through a second connecting block. When the second scraper rotates to the feeding box, the weight block and the moving block cooperate under the action of gravity to move the feeding block to a lower position and push the impurities scraped by the second scraper into the feeding box.

[0015] According to one aspect, a plurality of sealing blocks are movably arranged in the movable groove, and the movable blocks are provided with insertion slots aligned with the sealing blocks on both sides. The movable blocks are provided with lifting components for controlling the lifting and lowering of the sealing blocks, so that the movable blocks and the plurality of sealing blocks cooperate to seal the movable groove.

[0016] According to one aspect, the lifting assembly includes a lifting inner rack disposed on the inner sidewall of the sealing block and a first lifting gear rotatably disposed on the second scraper and meshing with the lifting inner rack. A transmission gear is coaxially disposed on one side of the first lifting gear. When the transmission gear rotates, the first lifting gear and the lifting inner rack cooperate to control the lifting of the sealing block.

[0017] According to one aspect, the lifting assembly further includes a first moving rack disposed on the upper end of the moving block, a support block vertically disposed on the upper end of the moving block, and a second moving rack disposed on the inner side of the support block. The first and second moving racks are aligned and disposed on the same vertical plane. The first and second moving racks are respectively disposed on the upper and lower sides of the transmission gear, so that the first and second moving racks can respectively control the transmission gear to rotate in different directions. When the first moving rack, through the transmission gear, causes the first lifting gear and the lifting inner rack to cooperate in controlling the sealing block to move upward, the second moving rack, through the transmission gear, causes the first lifting gear and the lifting inner rack to cooperate in controlling the sealing block to move downward, thereby sealing the moving groove.

[0018] The significant technical effects of the embodiments of the present invention are as follows: (1) The robotic automatic arm welding device for processing automotive parts provided in this embodiment of the invention can install the wire feeding assembly in the middle of the robotic arm by setting the welding machine and the wire feeding assembly, which greatly shortens the distance between the wire feeding assembly and the welding gun, eliminates wire vibration, and ensures wire feeding accuracy, thereby improving welding quality and ensuring production efficiency. By setting the vibration isolation mounting seat, the vibration transmission path is blocked. By setting the wire feeding roller, wire feeding gear, support plate, first main gear and guide tube, multiple wire feeding rollers can work together to form a tension closed loop, eliminate the axial movement of the welding wire, and improve the use effect of the robotic automatic arm welding device.

[0019] (2) The robotic automatic arm welding device for automotive parts processing provided in this embodiment of the invention can clean the welding wire and dissipate heat from the second protective box by setting a first cleaning component and a second cleaning component. The cleaning wipe, cleaning strip and negative pressure fan can clean impurities from the welding wire and discharge the impurities from the second protective box. The second connecting seat, filter cover, telescopic tube, telescopic rod, return spring, guide block, first rotating block, first scraper, second rotating block and rotating blade are used in combination to prevent external impurities from entering the second protective box. The rotating external gear ring, second main gear, second drive motor, sealing plate, reciprocating screw transmission structure, bevel gear structure, first rotating gear, second rotating gear and rotating tooth block are used in combination to control the second scraper to clean the filter screen and can guide the cleaned impurities into the feeding box. The first connecting seat, filter screen, feeding box, rotating ring, cleaning structure and collection box can filter and discharge the cleaned impurities, which improves the use effect of the robotic automatic arm welding device.

[0020] (3) The robotic automatic arm welding device for processing automotive parts provided in this embodiment of the invention can guide the impurities that are removed into the unloading box through the setting of the unloading block, fixed block, moving block, weight block, circular block and second scraper. Through the setting of the sealing block, sealing groove, lifting internal rack, first lifting gear, transmission gear, first moving rack, support block and second moving rack, the moving groove can be sealed in real time to prevent external impurities from entering the second scraper, reduce the number of maintenance times for the second scraper, ensure the normal operation of the weight block and improve the use effect of the robotic automatic arm welding device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a robotic automatic arm welding device for processing automotive parts in one embodiment of the present invention; Figure 2 This is a schematic diagram of the welding mechanism in this invention; Figure 3 This is a cross-sectional view of the wire feeding assembly in this invention; Figure 4 This is a schematic diagram of the wire feeding gear and wire feeding roller in this invention; Figure 5 This is a schematic diagram of the structure of the first cleaning component and the second cleaning component in this invention; Figure 6 This is a cross-sectional view of the second cleaning component in this invention; Figure 7 This is a schematic diagram of the structure of the filter cover and rotating blades in this invention; Figure 8 This is a schematic diagram of the structure of the filter cover and the first scraper in this invention; Figure 9 This is a schematic diagram of the filter screen and cleaning structure in this invention; Figure 10 In this invention Figure 9 Enlarged schematic diagram of the structure at point A; Figure 11 In this invention Figure 9 Enlarged schematic diagram of the structure at point B; Figure 12 This is a schematic diagram of the cleaning structure and the feeding assembly in this invention; Figure 13 In this invention Figure 12 Enlarged schematic diagram of the structure at point C; Figure 14 This is a schematic diagram of the moving block and lifting assembly in this invention.

[0023] In the diagram: 1. Welding machine; 2. Robotic arm; 3. Machine base; 4. First protective box; 5. Second protective box; 6. Connecting pipe; 7. Wire guide tube; 8. Welding wire spool; 9. Wire guide roller; 10. Wire feeding roller; 11. Wire feeding gear; 12. Support plate; 13. First main gear; 14. Vibration isolation mounting base; 15. First drive motor; 16. Guide tube; 17. Cleaning wiper; 18. Cleaning strip; 19. First connecting seat; 20. Negative pressure fan; 21. Second connecting seat; 22. Filter cover; 23. Telescopic tube; 24. Telescopic rod; 25. Return spring; 26. Guide block; 27. First rotating block; 28. First scraper; 29. ​​Second rotating block; 30. Rotating blade; 31. Filter. 32. Mesh; 33. Rotating ring; 34. Cleaning structure; 35. Collection box; 36. Mounting component; 37. Mounting block; 38. Circular block; 39. Second scraper; 40. Rotating external gear ring; 41. Second main gear; 42. Second drive motor; 43. Discharge box; 44. Sealing plate; 45. Reciprocating screw transmission structure; 46. Bevel gear structure; 47. First rotating gear; 48. Second rotating gear; 49. Rotating gear block; 50. Discharge block; 51. Fixed block; 52. Moving block; 53. Weight block; 54. Sealing block; 55. Lifting internal rack; 56. First lifting gear; 57. Transmission gear; 58. First moving rack; 59. Support block; 50. Second moving rack. Detailed Implementation

[0024] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0026] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0029] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0030] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation", "connection", "linking", and "fixing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components.

[0031] Example 1 Please see Figures 1-5This invention illustrates a robotic automatic arm welding device for processing automotive parts according to an embodiment of the present invention. The device includes a welding machine 1 and a welding mechanism mounted on the welding machine 1. The welding machine 1 includes a robotic arm 2 and a mechanical base 3 connected to the robotic arm 2. A welding torch is provided at the head of the robotic arm 2. The welding mechanism includes a first protective box 4 located in the middle of the robotic arm 2 and a second protective box 5 located on one side of the first protective box 4. The welding mechanism also includes a wire feeding assembly located in the first protective box 4 and the second protective box 5. Furthermore, the welding mechanism includes vibration isolation components respectively located at the upper ends of the first protective box 4 and the second protective box 5. Mounting base 14, vibration isolation mounting base 14 fixes the first protective box 4 and the second protective box 5 to the robotic arm 2. Both the first protective box 4 and the second protective box 5 are made of lightweight materials. Some structures in the wire feeding assembly are also made of lightweight materials to reduce the weight of the welding mechanism. Both the first protective box 4 and the second protective box 5 have covers on both sides to facilitate disassembly and maintenance of their internal structures. The first protective box 4 is provided with a connecting pipe 6 that communicates with the second protective box 5. The other side of the second protective box 5 is provided with a wire guide tube 7. One end of the wire guide tube 7 is set at the welding torch and works with the welding torch to perform welding work. The wire feeding assembly includes a wire spool 8 rotatably disposed in a first protective box 4 and a wire guide roller 9 disposed on one side of the wire spool 8. The wire spool 8 is provided with a place to hold the wire coil. A first rotary motor for controlling the rotation of the wire spool 8 can be installed in the first protective box 4. The wire on the wire spool 8 passes through the wire guide roller 9 and a connecting pipe 6 into the second protective box 5. The inner wall of the second protective box 5 is symmetrically provided with guide pipes 16 for use with the wire. The wire feeding assembly includes a wire feeding roller 10 symmetrically disposed in the second protective box 5 and a wire feeding gear 11 coaxially connected to the wire feeding roller 10. The second protective box 5 is vertically disposed with a wire feeding gear 11. The support plate 12 is rotatably connected to the roller 10. The wire feeding roller 10 and the wire feeding gear 11 are respectively arranged on both sides of the support plate 12. The wire feeding assembly also includes a first main gear 13 rotatably arranged on the support plate 12 and meshing with two horizontally adjacent wire feeding gears 11. A first drive motor 15 is provided on one side of the first main gear 13, so that the first drive motor 15 controls the two wire feeding gears 11 to rotate in the same direction through the first main gear 13. The wire feeding gears 11 cause the other wire feeding roller 10 to rotate through the adjacent wire feeding gears 11, so that a number of wire feeding gears 11 control the wire feeding roller 10 to feed the welding wire.

[0032] Furthermore, the first protective box 4 and the second protective box 5 are fixed to the robotic arm 2 via the vibration isolation mounting base 14. The welding wire coil is installed on the welding wire spool 8, and one end of the welding wire is extended into the second protective box 5 through the wire guide roller 9 and the connecting pipe 6. The welding wire then passes through the guide pipe 16 on one side, the wire feeding roller 10 and the guide pipe 16 on the other side in sequence into the wire guide tube 7, and one end of the welding wire extends to the welding gun. When welding is performed, the first rotary motor is started to drive the welding wire spool 8 to rotate, so that the welding wire spool 8 assists in wire feeding. The first drive motor 15 is started to drive the first main gear 13 to rotate, so that the first main gear 13 drives the wire feeding gear 11 to rotate, so that the wire feeding gear 11 rotates and drives the wire feeding roller 10 to rotate, thereby conveying the welding wire, thereby shortening the wire guiding distance, eliminating welding wire vibration, and ensuring wire feeding accuracy.

[0033] As a specific example, such as Figure 3 and Figure 5 As shown, the welding mechanism also includes a first cleaning component disposed inside the second protective box 5. The first cleaning component can clean the welding wire that enters the second protective box 5. The first cleaning component includes several cleaning wipes 17 symmetrically rotated in the second protective box 5 and a cleaning strip 18 disposed on one side of the cleaning wipes 17. The cleaning strip 18 is horizontally aligned with the cleaning wipes 17. The first cleaning component also includes a second rotary motor for controlling the rotation of the cleaning wipes 17.

[0034] Furthermore, when the welding wire passes through the guide tube 16 and enters the cleaning wiper 17, the cleaning wiper 17 cleans the welding wire, and the cleaning strip 18 cleans the cleaning wiper 17, removing impurities adhering to the cleaning wiper 17. This prevents impurities adhering to the welding wire from entering the wire feeding roller 10 and causing damage to the welding wire. There is a small gap between the two cleaning wipers 17, one above the other, to allow the welding wire to pass through. Additionally, the cleaning wiper 17 and / or the cleaning strip 18 can be made of flexible material to prevent jamming.

[0035] Example 2 Based on Example 1, referring to Figure 3 and Figure 5 - Figure 8 This is the second embodiment of the present invention.

[0036] As a specific example, such as Figure 3 and Figure 5 - Figure 6As shown, the welding mechanism also includes a second cleaning component disposed at the bottom of the second protective box 5 and aligned with the first cleaning component. The inner bottom surface of the second protective box 5 has a first through groove. The second cleaning component includes a first connecting seat 19 fixedly disposed at the bottom of the second protective box 5, a negative pressure fan 20 detachably mounted at the bottom of the first connecting seat 19, and a second connecting seat 21 disposed at the bottom of the negative pressure fan 20. Both the first connecting seat 19 and the second connecting seat 21 have a second through groove communicating with the negative pressure fan 20. The second through groove has a circular structure, which allows the negative pressure fan 20 to discharge the impurities cleaned by the cleaning wipe 17 and the cleaning strip 18 from the second protective box 5. The second protective box 5 is equipped with a temperature sensor and a flue gas sensor, which allows the negative pressure fan 20 to perform air extraction, heat dissipation, and protection for the second protective box 5.

[0037] Furthermore, the negative pressure fan 20 is started to suck up and transfer the impurities cleaned by the cleaning wipe 17 and cleaning strip 18, so that the impurities enter the first connecting seat 19, and the extracted air is discharged from the second connecting seat 21.

[0038] As a specific example, such as Figure 6 and Figure 7 As shown, the second cleaning assembly also includes a filter cover 22 movably disposed inside the second connecting seat 21 and several telescopic tubes 23 arranged in a circular array vertically disposed on the top surface of the inner side of the second connecting seat 21. A telescopic rod 24 movably disposed in the telescopic tube 23 and vertically connected to the filter cover 22, and a return spring 25 disposed in the telescopic tube 23 and connected to the telescopic rod 24. A first connecting block is disposed at the outer edge of the filter cover 22 and fits against the inner wall of the second connecting seat 21. A guide block 26 is vertically disposed in the first connecting block and extends into the interior of the second connecting seat 21. A guide groove is opened on the second connecting seat 21 and is slidably connected to several guide blocks 26. When the negative pressure fan 20 is working, the telescopic rod 24 and the return spring 25 control the filter cover 22 to move up and down, thereby cleaning the filter cover 22. The filter cover 22 can prevent external impurities from entering the negative pressure fan 20.

[0039] Furthermore, the negative pressure fan 20 discharges the drawn air from the second connecting seat 21. When there are too many impurities adhering to the filter cover 22, the amount of gas passing through the filter cover 22 is reduced, causing the filter cover 22 to move downward. This causes the filter cover 22 to move the first connecting block, which in turn causes the guide block 26 to move in the guide groove. This also causes the filter cover 22 to move the telescopic rod 24 in the telescopic tube 23, which in turn causes the return spring 25 to reset the telescopic rod 24, thus cleaning the impurities off the filter cover 22.

[0040] As a specific example, such as Figure 7 and Figure 8As shown, the second cleaning assembly also includes a first rotating block 27 rotatably disposed on the top surface of the inner side of the filter cover 22 and a first scraper 28 disposed outside the first rotating block 27 and for cleaning the filter cover 22 in close contact. The upper end of the filter cover 22 is rotatably provided with a second rotating block 29 coaxially connected to the first rotating block 27. The outer wall of the second rotating block 29 has rotating blades 30 arranged in a circular array, so that when the negative pressure fan 20 is working, the second rotating block 29 and the rotating blades 30 cooperate to control the first scraper 28 to clean the filter cover 22 through the first rotating block 27.

[0041] Furthermore, when the negative pressure fan 20 discharges the drawn air from the second connecting seat 21, the rotating blade 30 drives the second rotating block 29 to rotate, which in turn drives the first rotating block 27 to rotate, which in turn drives the first scraper 28 to rotate, so that the first scraper 28 adheres to and cleans the filter cover 22, and discharges the cleaned impurities through the downward airflow.

[0042] Example 3 Based on Example 2, referring to Figure 5 - Figure 6 and Figure 9 - Figure 13 This is the third embodiment of the present invention.

[0043] As a specific example, such as Figure 5 - Figure 6 and Figure 9 As shown, the second cleaning assembly also includes a filter screen 31 inclinedly disposed in the first connecting seat 19 and a rotating ring 32 rotatably disposed above the filter screen 31. The inner wall of the first connecting seat 19 has a rotating groove that fits with the rotating ring 32. The inner wall of the rotating ring 32 has a cleaning structure 33 for fitting and cleaning the filter screen 31. The first connecting seat 19 has a feeding box 42 that matches the lowest point of the filter screen 31. The bottom end of the first connecting seat 19 has a collection box 34 aligned with the feeding box 42. The outer wall of the first connecting seat 19 has a mounting member 35. The top of the collection box 34 has a mounting block 36 fixed to the mounting member 35. The mounting member 35 has a mounting groove that connects to the mounting block 36.

[0044] Furthermore, when the negative pressure fan 20 discharges the drawn air from the second connecting seat 21, it sucks up and transfers the impurities cleaned by the cleaning wipe 17 and cleaning strip 18, and causes the impurities to enter the first connecting seat 19, so that the filter screen 31 filters the impurities. When the rotating ring 32 rotates, the cleaning structure 33 guides the impurities on the filter screen 31 into the feeding box 42, and the feeding box 42 guides the impurities into the collection box 34.

[0045] As a specific example, such as Figure 10 and Figure 12 - Figure 13 As shown, the cleaning structure 33 includes a circular block 37 disposed at the center of the rotating ring 32 and a second scraper 38 disposed in a circular array on the circular block 37. One end of the second scraper 38 is fixed perpendicularly to the inner wall of the rotating ring 32, and the bottom end of the second scraper 38 is attached to the filter screen 31.

[0046] Furthermore, when the rotating ring 32 rotates, it drives the second scraper 38 and the circular block 37 to rotate, so that the second scraper 38 cleans the impurities on the filter screen 31.

[0047] As a specific example, such as Figure 9 and Figure 10 As shown, the second cleaning assembly also includes a rotating external gear ring 39 disposed on the outer wall of the rotating ring 32 and a second main gear 40 meshing with the rotating external gear ring 39. A second drive motor 41 is disposed below the second main gear 40. The second main gear 40 is disposed on the first connecting seat 19 and aligned with the highest point of the filter screen 31, so that the second drive motor 41 and the second main gear 40 control the rotating ring 32 to rotate through the rotating external gear ring 39.

[0048] Furthermore, the second drive motor 41 is started, which drives the second main gear 40 to rotate, causing the second main gear 40 to drive the rotating external gear ring 39 to rotate, and the rotating external gear ring 39 to drive the rotating ring 32 to rotate, so that the rotating ring 32 cleans the impurities on the filter screen 31 through the cleaning structure 33.

[0049] As a specific example, such as Figure 9 and Figure 11 As shown, the second cleaning assembly also includes a sealing plate 43 fitted above the feed box 42 and a reciprocating screw drive structure 44 for controlling the movement of the sealing plate 43. The bottom end of the sealing plate 43 is provided with several pulleys. One end of the reciprocating screw drive structure 44 is coaxially provided with a bevel gear structure 45. A first rotating gear 46 is provided on the bevel gear structure 45, and a second rotating gear 47 meshes with one side of the first rotating gear 46. The lower outer wall of the rotating ring 32 is provided with several rotating tooth blocks 48 arranged in a circular array, symmetrical to the second scraper 38. The first connecting seat 19... The rotating toothed block 48 is provided with a rotating toothed groove that matches the rotating toothed block 48. The rotating toothed block 48 can also play a guiding and limiting role. The second rotating gear 47 meshes with the rotating toothed block 48, so that the rotating toothed block 48 can work by cooperating with the second rotating gear 47, the first rotating gear 46 and the bevel gear structure 45 to control the reciprocating screw transmission structure 44. When the second scraper 38 rotates to the lower material box 42, the sealing plate 43 gradually opens the lower material box 42. When the second scraper 38 leaves the lower material box 42, the sealing plate 43 gradually closes the lower material box 42.

[0050] Furthermore, when the rotating ring 32 rotates, it drives the rotating gear block 48 to rotate. When the rotating gear block 48 rotates to the second rotating gear 47, the second rotating gear 47 and the rotating gear block 48 mesh, causing the rotating gear block 48 to drive the second rotating gear 47 to rotate. The second rotating gear 47 drives the first rotating gear 46 to rotate, and the first rotating gear 46 drives the bevel gear structure 45 to rotate. The bevel gear structure 45 drives the reciprocating screw transmission structure 44 to work, causing the reciprocating screw transmission structure 44 to drive the sealing plate 43 to move, gradually opening the feeding box 42. This causes the second scraper 38 to rotate at the feeding box 42, guiding impurities into the feeding box 42. When the second scraper 38 leaves the feeding box 42, the reciprocating screw transmission structure 44 controls the sealing plate 43 to reset, fitting against the feeding box 42 and closing the feeding box 42.

[0051] Example 4 Based on Example 3, referring to Figure 9 and Figure 12 - Figure 14 This is the fourth embodiment of the present invention.

[0052] As a specific example, such as Figure 9 and Figure 12 As shown, the second scraper 38 is equipped with a feeding assembly. The feeding assembly assists the second scraper 38 in scraping impurities on the filter screen 31 into the feeding box 42. The feeding assembly includes a feeding block 49 movably mounted on the second scraper 38 and attached to the filter screen 31, and a fixing block 50 mounted on the feeding block 49 and attached to the outer wall of the second scraper 38. The fixing block 50 is equipped with a moving block 51 movably connected to the second scraper 38. The second scraper 38 is provided with a moving groove that matches the moving block 51. The moving groove is located on the upper outer side of the second scraper 38, making it difficult for impurities to enter. The interior of the second scraper 38 is equipped with a weight block 52, which is connected to the moving block 51 through a second connecting block. When the second scraper 38 rotates to the feeding box 42, the weight block 52 and the moving block 51 cooperate under the action of gravity to move the feeding block 49 downward and push the impurities scraped by the second scraper 38 into the feeding box 42.

[0053] Furthermore, the rotating ring 32 drives the second scraper 38 to rotate. When the second scraper 38 rotates to the lowest point of the filter screen 31, the weight block 52 and the moving block 51 move downward under the action of gravity. The moving block 51 drives the fixed block 50 to move, so that the fixed block 50 drives the second scraper 38 to move on the second scraper 38, so that the second scraper 38 pushes the impurities scraped by the second scraper 38 into the feed box 42.

[0054] As a specific example, such as Figure 13As shown, a number of sealing blocks 53 are movably arranged in the movable groove. Both sides of the movable block 51 are provided with insertion slots aligned with the sealing blocks 53. The movable block 51 is provided with a lifting component to control the lifting and lowering of the sealing blocks 53, so that the movable block 51 and the number of sealing blocks 53 cooperate to seal the movable groove.

[0055] Furthermore, when the weight block 52 and the fixed block 50 drive the moving block 51 to move, the moving block 51 moves in the moving groove, causing the sealing block 53 to enter the insertion groove.

[0056] As a specific example, such as Figure 14 As shown, the lifting assembly includes a lifting inner rack 54 disposed on the inner sidewall of the sealing block 53 and a first lifting gear 55 rotatably disposed on the second scraper 38 and meshing with the lifting inner rack 54. The second scraper 38 has a sealing groove that fits against the sealing block 53 and the lifting inner rack 54. A transmission gear 56 is coaxially disposed on one side of the first lifting gear 55. When the transmission gear 56 rotates, the first lifting gear 55 and the lifting inner rack 54 cooperate to control the sealing block 53 to lift.

[0057] Furthermore, when the transmission gear 56 rotates, it causes the first lifting gear 55 to rotate, and the first lifting gear 55 causes the lifting inner rack 54 to move upward, which in turn causes the lifting inner rack 54 to move the sealing block 53 upward.

[0058] As a specific example, such as Figure 14 As shown, the lifting assembly also includes a first moving rack 57 disposed on the upper end of the moving block 51, a support block 58 vertically disposed on the upper end of the moving block 51, and a second moving rack 59 disposed on the inner side of the support block 58. The first moving rack 57 and the second moving rack 59 are aligned and disposed on the same vertical plane. The first moving rack 57 and the second moving rack 59 are respectively disposed on the upper and lower sides of the transmission gear 56, so that the first moving rack 57 and the second moving rack 59 can control the transmission gear 56 to rotate in different directions. When the first moving rack 57 causes the first lifting gear 55 and the lifting inner rack 54 to cooperate and control the sealing block 53 to move upward through the transmission gear 56, the second moving rack 59 causes the first lifting gear 55 and the lifting inner rack 54 to cooperate and control the sealing block 53 to move downward through the transmission gear 56, thereby sealing the moving groove.

[0059] Furthermore, when the moving block 51 moves in the moving groove, causing the sealing block 53 to enter the insertion slot, the first moving rack 57 drives the transmission gear 56 to rotate. The transmission gear 56 drives the first lifting gear 55 to rotate. The first lifting gear 55 drives the lifting inner rack 54 to move upward, causing the lifting inner rack 54 to drive the sealing block 53 to move upward. When the moving block 51 and the sealing block 53 separate, the second moving rack 59 meshes with the transmission gear 56, causing the transmission gear 56 to control the sealing block 53 to move downward through the first lifting gear 55 and the lifting inner rack 54, sealing the moving groove.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of protection of the claims of the present invention.

Claims

1. A robotic automatic arm welding device for processing automotive parts, characterized in that, include; The welding machine (1) has a first protective box (4) at the middle of its arm end for placing the welding wire spool (8); The second protective box (5) is connected to the first protective box (4) at one end through a connecting pipe (6), and the other end is provided with a guide wire tube (7). A support plate (12) is vertically arranged on the inner wall of the second protective box (5). A number of wire feeding rollers (10) are symmetrically arranged on one side of the support plate (12), and a wire feeding gear (11) connected to the wire feeding rollers (10) is arranged on the other side of the support plate (12). The guide tube (16) is symmetrically arranged on the inner wall of the second protective box (5) and aligned with the wire feeding roller (10); The first main gear (13) is rotatably disposed on the other side of the support plate (12) and meshes with two transversely adjacent wire feeding gears (11); The first main gear (13) controls several wire feeding rollers (10) to work together through the wire feeding gear (11) to stably feed the welding wire.

2. The robotic automatic arm welding device for automotive parts processing according to claim 1, characterized in that, The second protective box (5) is equipped with several cleaning wipes (17) for cleaning the welding wire. The cleaning wipe (17) has a cleaning strip (18) on one side; The bottom end of the second protective box (5) is connected to a first connecting seat (19) aligned with the cleaning wipe (17); The bottom end of the first connecting seat (19) is connected to a negative pressure fan (20). The bottom end of the negative pressure fan (20) is connected to a second connecting seat (21).

3. The robotic automatic arm welding device for automotive parts processing according to claim 2, characterized in that, The second connecting seat (21) is equipped with a filter cover (22) inside. The filter cover (22) is vertically provided with several telescopic rods (24). The inner top surface of the second connecting seat (21) is provided with a number of telescopic tubes (23) that are movably connected to the telescopic rod (24) in a circular array. The telescopic tube (23) is provided with a return spring (25) connected to the telescopic rod (24); The filter cover (22) has a first rotating block (27) rotatably mounted on its inner top surface. The first rotating block (27) is provided with a plurality of first scrapers (28) for cleaning the filter cover (22); The first rotating block (27) is provided with a plurality of rotating blades (30) that control the rotation of the first scraper (28) via the second rotating block (29).

4. The robotic automatic arm welding device for automotive parts processing according to claim 2, characterized in that, A filter screen (31) is inclinedly provided in the first connecting seat (19); A rotating ring (32) is provided parallel above the filter screen (31). The inner wall of the rotating ring (32) is provided with a cleaning structure (33) for cleaning the filter screen (31) by adhering to it. The first connecting seat (19) is provided with a feeding box (42) that matches the lowest point of the filter screen (31); The bottom end of the first connecting seat (19) is provided with a collection box (34) aligned with the feeding box (42).

5. The robotic automatic arm welding device for automotive parts processing according to claim 4, characterized in that, The cleaning structure (33) includes: A circular block (37) is positioned at the center of the rotating ring (32); Several second scrapers (38) are arranged in a circular array on the circular block (37), and one end of the second scraper (38) is fixed perpendicularly to the inner wall of the rotating ring (32); One end of the second scraper (38) is fixed perpendicularly to the inner wall of the rotating ring (32).

6. The robotic automatic arm welding device for automotive parts processing according to claim 5, characterized in that, The upper side of the outer wall of the rotating ring (32) is provided with a rotating external toothed ring (39); The first connecting seat (19) is provided with a second main gear (40) that meshes with the rotating external gear ring (39); The second main gear (40) is disposed on the first connecting seat (19) and aligned with the highest point of the filter screen (31), so that the second drive motor (41) and the second main gear (40) control the rotating ring (32) to rotate by rotating the external gear ring (39).

7. The robotic automatic arm welding device for automotive parts processing according to claim 6, characterized in that, The first connecting seat (19) has a sealing plate (43) inside that fits and aligns with the feed inlet of the feeding box (42); The first connecting seat (19) is provided with a reciprocating screw drive structure (44) for controlling the sealing plate (43) to move back and forth. One end of the reciprocating screw drive structure (44) is coaxially provided with a bevel gear structure (45). The bevel gear structure (45) is provided with a first rotary gear (46). The first rotating gear (46) is engaged with a second rotating gear (47) on one side. The lower outer wall of the rotating ring (32) is provided with a number of rotating tooth blocks (48) that are symmetrical to the second scraper (38). The second rotating gear (47) meshes with the rotating tooth block (48). The rotating tooth block (48) can work by cooperating with the second rotating gear (47), the first rotating gear (46) and the bevel gear structure (45) to control the reciprocating screw transmission structure (44). When the second scraper (38) rotates to the lower material box (42), the sealing plate (43) gradually opens the lower material box (42). When the second scraper (38) leaves the lower material box (42), the sealing plate (43) gradually closes the lower material box (42).

8. The robotic automatic arm welding device for automotive parts processing according to claim 5, characterized in that, The second scraper (38) is provided with a feed block (49) with a filter screen (31) attached to it via a fixing block (50); The fixed block (50) is provided with a movable block (51) that is movably connected to the second scraper (38); The second scraper (38) has a movable groove that matches the movable block (51); The movable block (51) is provided with a weighted block (52) that moves inside the second scraper (38) via a second connecting block; When the second scraper (38) rotates to the feeding box (42), the weight block (52) and the moving block (51) work together under the action of gravity to make the feeding block (49) move to a lower position and push the impurities scraped by the second scraper (38) into the feeding box (42).

9. A robotic automatic arm welding device for processing automotive parts according to claim 8, characterized in that, Several sealing blocks (53) are movably provided in the movable groove; Both sides of the movable block (51) are provided with insertion slots aligned with the sealing block (53); The inner wall of the sealing block (53) is vertically provided with a lifting internal rack (54); The second scraper (38) is provided with a first lifting gear (55) that meshes with the lifting internal rack (54); A transmission gear (56) is coaxially provided on one side of the first lifting gear (55). When the transmission gear (56) rotates, the first lifting gear (55) and the lifting internal rack (54) cooperate to control the sealing block (53) to lift.

10. A robotic automatic arm welding device for processing automotive parts according to claim 9, characterized in that, The upper side of the movable block (51) is provided with a first movable rack (57). The upper end of the movable block (51) is provided with a second movable rack (59) aligned with the first movable rack (57) via a support block (58). The first movable rack (57) and the second movable rack (59) are respectively disposed on the upper and lower sides of the transmission gear (56), so that the first movable rack (57) and the second movable rack (59) can respectively control the transmission gear (56) to rotate in different directions; When the first moving rack (57) causes the first lifting gear (55) and the lifting inner rack (54) to cooperate in controlling the sealing block (53) to move upward through the transmission gear (56), the second moving rack (59) causes the first lifting gear (55) and the lifting inner rack (54) to cooperate in controlling the sealing block (53) to move downward through the transmission gear (56).

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