Welding System and Welding Process for Flange Parts Used in Railway Equipment

Abstract

The present invention is applicable to the field of welding technology, and provides a welding system and a welding process for flange parts used in railway equipment. The welding system includes a base unit. A welding unit is installed at the middle position of the base unit. A railway flange part is arranged at the middle position of the base unit. The welding unit is arranged in the middle of the railway flange part. A protection unit is installed on one side of the welding unit. A coating unit is arranged at the position where the protection unit is connected to the base unit. The base unit includes a substrate. A support base is installed on the substrate. An auxiliary slide rail is installed at the middle position of the support base. A driving motor is installed on the auxiliary slide rail. A rotating mechanism is installed at the output end of the driving motor. The problem that the parts inside the roller are damaged by the splashed metal or slag during the welding process is solved, and the effect of preventing the splashing of the metal slag ejected by the welding and protecting the parts around the roller is achieved.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and more specifically, it relates to a welding system and a welding process for flange parts used in railway equipment. Background Art

[0002] A welding system is a device used to connect metals or other materials together by heating, pressure, or a combination of both. It makes the materials locally melt by generating high temperature and then forms a firm connection after cooling and solidifying. Welding systems are widely used in manufacturing, construction, the automotive industry, aerospace, etc., for manufacturing structural parts, pipelines, containers, mechanical parts, etc.

[0003] Currently, the welding systems for flange parts used in railway equipment on the market are usually processed in workshops. First, the welding materials are inspected, then the base materials are pre-treated such as cutting and grinding, and then the flange is clamped to ensure that the position of the flange does not shift. The appropriate welding method is selected, and the welding speed and wire feeding speed are controlled. During the welding process, the welding slag and spatter are cleaned in a timely manner, and the oxides generated during the welding process are cleaned after welding.

[0004] Since the current welding technologies are all aimed at indoor welding, for the welding of flange parts used in railway equipment, there are certain limitations. It is necessary to first disassemble the entire roller on the moving train. For a moving train, this is a time-consuming and laborious behavior, and the disassembly process of the train roller is relatively complex, and the reinstallation is too complicated. If the flange of the railway equipment is welded without disassembling the roller, it is necessary to protect the inside of the roller to prevent the flying metal or slag during the welding process from damaging the parts inside the roller. And there are dense wirings around the roller, and the flying metal or slag will reduce the durability of the wiring part or directly damage it, causing potential safety hazards. During the process of protecting against spatter, due to the small operating space for welding, the spattered slag will bounce on the welding surface of the roller, resulting in deviations in the smoothness and dimensional accuracy of the workpiece surface. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a welding system and a welding process for flange parts used in railway equipment.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A welding system for flange parts used in railway equipment includes a base unit. A welding unit is installed at the middle position of the base unit. A railway flange part is arranged at the middle position of the base unit. The welding unit is arranged in the middle of the railway flange part. A protection unit is installed on one side of the welding unit. A coating unit is arranged at the position where the protection unit is connected to the base unit.

[0008] The base unit includes a substrate, on which a support base is mounted. An auxiliary slide rail is mounted at the middle position of the support base, and a driving motor is mounted on the auxiliary slide rail. A rotating mechanism is mounted at the output end of the driving motor. The welding unit includes a welding base, which is mounted at one end of the rotating mechanism away from the driving motor. A welding robotic arm is mounted on the welding base, and a welding head is mounted at the output end of the welding robotic arm. The railway flange member includes a railway flange and a welding disc mounted on one side of the railway flange.

[0009] The protection unit includes a driving base mounted on the outer wall of the rotating mechanism. A protection motor is mounted on the driving base. An installation disc is provided on the side of the driving base away from the driving motor. A driving wheel is provided on the installation disc. The output end of the protection motor is connected to the driving wheel. A second driven wheel is fitted and mounted on the installation disc in engagement with the driving wheel. A first driven wheel is also fitted and mounted on the installation disc in engagement with the second driven wheel. A first telescopic rod is mounted on the side of the first driven wheel away from the rotating mechanism. A second telescopic rod is mounted on the side of the second driven wheel away from the rotating mechanism. Anti-splash mechanisms are mounted at the ends of the first telescopic rod and the second telescopic rod away from the rotating mechanism.

[0010] The present invention is further configured as follows: Moving auxiliary wheels are rectangularly mounted below the substrate. A support slide rail is mounted at the bottom of the support base. A support mechanism is slidably mounted on the support slide rail. An auxiliary mechanism is mounted on the top of the support base. The support mechanism is in contact with the bottom of the railway flange member, and the auxiliary mechanism is in contact with the side of the railway flange member.

[0011] The present invention is further configured as follows: The two anti-splash mechanisms include anti-splash shell plates, the shape of the anti-splash shell plates is irregular, the anti-splash shell plates are hollow, and a water-cooling pipe is provided inside the anti-splash shell plates. The water-cooling pipes are evenly distributed inside the side walls of the anti-splash shell plates.

[0012] The present invention is further configured as follows: An anti-splash motor is fixedly mounted at the middle position on one side of the anti-splash shell plate. The output end of the anti-splash motor penetrates the side wall of the anti-splash shell plate and rotatably mounts a protection baffle. A protection groove is provided on the side of the anti-splash shell plate away from the railway flange member, and the shape of the protection groove fits the output end of the welding head.

[0013] By adopting the above technical solution, the shapes of the two anti-splash mechanisms are made to fit, and the two anti-splash shell plates are brought into contact with each other to protect the output end of the welding head inside, achieving the effect of preventing the metal slag splashed during welding from splashing and protecting the parts around the rollers.

[0014] The present invention is further configured such that: a cleaning module is provided inside the protective baffle. The cleaning module includes a cleaning motor which is disposed inside the protective baffle. A speed reducer is installed at the output end of the cleaning motor. The speed reducer includes an input end and an output end, and the output end of the cleaning motor is connected to the input end of the speed reducer.

[0015] The present invention is further configured such that: a cleaning lead screw is installed at the output end of the speed reducer. A cleaning slide seat is rotatably installed on the cleaning lead screw. A cleaning scraper is installed on the cleaning slide seat. The cleaning scraper is in contact with the surface of the protective baffle, and the shape of the cleaning scraper is wedge-shaped.

[0016] By adopting the above technical solution, it is set that the splash-proof motor rotates to drive the protective baffle to rotate, so that the rebounding metal slag falls onto the surface of the protective baffle. The length of the protective baffle is less than the length of the splash-proof shell plate, and the rebounding metal slag is restricted within the enclosed space formed by the protective baffle and the splash-proof shell plate, achieving the effect of preventing the metal slag from rebounding inside the splash-proof shell plate.

[0017] The present invention is further configured such that: the coating unit includes a coating rod. A scraping mechanism is provided at one end of the coating rod far from the rotating mechanism. A driving mounting plate is installed on the side wall of the coating rod at the end far from the rotating mechanism. A coating motor is installed on the driving mounting plate, and the output end of the coating motor is connected to the scraping mechanism.

[0018] The present invention is further configured such that: the scraping mechanism includes a hinge frame. A scraping rotating shaft is provided in the middle of the hinge frame. The scraping rotating shaft penetrates one end of the coating rod close to the coating motor, and the output end of the coating motor is connected to the scraping rotating shaft. A scraping plate is installed at the end of the scraping rotating shaft far from the coating motor. The shape of the scraping plate is triangular, and the inside of the scraping plate is hollowed out.

[0019] The present invention is further configured such that: a connecting plate is installed on the side of the scraping plate without an opening. Driving cylinders are installed on both sides of the connecting plate. The output ends of the driving cylinders are installed with lifting plates. A coating roller is rotatably installed between the two lifting plates.

[0020] By adopting the above technical solution, it is set that a scraping plate is installed at the end of the scraping rotating shaft far from the coating motor. The shape of the scraping plate is triangular, and the inside of the scraping plate is hollowed out. The driving cylinder drives the coating roller to approach the inner wall of the railway flange. The coating roller is in contact with the cleaned inner wall of the railway flange, achieving the effect of being able to clean the oxide layer of the welded part of the inner wall of the railway flange and directly apply a special cleaning agent after cleaning.

[0021] Welding process for flange parts used in railway equipment. According to the welding system for flange parts used in railway equipment described above, it includes the following steps:

[0022] S1. Lift the welding unit to a proper position, and the base unit assists in clamping the welding unit.

[0023] S2. After clamping, the protection motor drives the driving wheel to rotate forward. The driving wheel drives the first driven wheel and the second driven wheel to rotate. The first telescopic rod and the second telescopic rod extend and approach each other. The two splash-proof mechanisms approach, and the welding unit is protected within the cavity formed by the two splash-proof mechanisms.

[0024] S3. After the output end of the welding head is protected by the splash-proof mechanism, the transmission motor drives the rotating mechanism to rotate. The rotating mechanism drives the welding unit to rotate, and the welding unit welds the railway flange parts. The protection unit protects the surrounding of the welding unit.

[0025] S4. During the process of the welding unit welding the railway flange parts, the inside of the splash-proof mechanism cleans the metal slag that rebounds after splashing during the welding process.

[0026] S5. After welding the railway flange parts, the protection motor drives the driving wheel to rotate in reverse. The first telescopic rod and the second telescopic rod retract and move away from each other.

[0027] S6. After the first telescopic rod and the second telescopic rod move away, the coating unit extends to clean the oxide left by welding and applies a special cleaning agent after cleaning.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Through the shape fit of the two splash-proof mechanisms and the fitting of the two splash-proof shell plates, the output end of the welding head is protected inside, achieving the effect of preventing the metal slag splashed during welding from splashing and protecting the parts around the roller.

[0030] 2. By the rotation of the splash-proof motor driving the protection baffle to rotate, the rebounding metal slag falls onto the surface of the protection baffle. The length of the protection baffle is less than the length of the splash-proof shell plate, restricting the rebounding metal slag within the enclosed space formed by the protection baffle and the splash-proof shell plate, achieving the effect of preventing the metal slag from rebounding inside the splash-proof shell plate.

[0031] 3. By installing a scraping plate at the end of the scraping and coating rotating shaft away from the coating motor, the shape of the scraping plate is triangular, and the inside of the scraping plate is hollowed out. The driving cylinder drives the coating roller to approach the inner wall of the railway flange part. The coating roller fits with the cleaned inner wall of the railway flange part, achieving the effect of cleaning the oxide layer of the welded part of the inner wall of the railway flange part and directly applying a special cleaning agent after cleaning. Description of the Drawings

[0032] Figure 1 This is a schematic diagram of the overall structure of the welding system for the flange parts of the railway equipment of the present invention.

[0033] Figure 2 This is a schematic diagram of the overall structure of the base unit in the present invention.

[0034] Figure 3 This is a schematic diagram of the overall structure of the welding unit in the present invention.

[0035] Figure 4 This is a schematic diagram of the overall structure of the railway flange part in the present invention.

[0036] Figure 5 This is a schematic diagram of the overall structure of the protection unit in the present invention.

[0037] Figure 6 This is a schematic diagram of the partial structure of the protection unit in the present invention.

[0038] Figure 7 This is a schematic diagram of the matching structure of the second telescopic rod and the splash-proof mechanism in the present invention.

[0039] Figure 8 This is a schematic diagram of the overall structure of the splash-proof mechanism in the present invention.

[0040] Figure 9 This is a schematic diagram of the installation structure of the water-cooling pipe in the present invention.

[0041] Figure 10 This is a schematic diagram of the matching structure of the protection baffle and the cleaning module in the present invention.

[0042] Figure 11 This is a schematic diagram of the partial structure of the cleaning module in the present invention.

[0043] Figure 12 This is a schematic diagram of the overall structure of the coating unit in the present invention.

[0044] Figure 13 This is a schematic diagram of the overall structure of the scraping mechanism in the present invention.

[0045] Figure 14 This is a schematic diagram of the overall structure of the scraping plate in the present invention.

[0046] Explanation of reference numerals: 1. Base unit; 11. Moving auxiliary wheel; 12. Substrate; 13. Support slide rail; 14. Support mechanism; 15. Auxiliary mechanism; 16. Support base; 17. Auxiliary slide rail; 18. Rotating mechanism; 19. Driving motor;

[0047] 2. Welding unit; 21. Welding base; 22. Welding robotic arm; 23. Welding head;

[0048] 3. Railway flange parts; 31. Railway flange; 32. Welding disc;

[0049] 4. Protection unit; 41. Driving base; 42. Protection motor; 43. Mounting disc; 44. Driving wheel; 45. First driven wheel; 46. Second driven wheel; 47. First telescopic rod; 48. Second telescopic rod; 49. Splash-proof mechanism; 491. Splash-proof housing plate; 4911. Water-cooling pipe; 492. Splash-proof motor; 493. Protection groove; 494. Protection baffle; 495. Cleaning module; 4951. Cleaning motor; 4952. Reducer; 4953. Cleaning lead screw; 4954. Cleaning slide; 4955. Cleaning scraper;

[0050] 5. Coating unit; 51. Coating rod; 52. Driving mounting plate; 53. Coating motor; 54. Scraping mechanism; 541. Scraping rotating shaft; 542. Hinge frame; 543. Scraping plate; 544. Connecting plate; 545. Driving cylinder; 546. Coating roller; 547. Lifting plate. Detailed implementation manners

[0051] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0052] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0053] Please refer to Figure 1-14 , the present invention provides the following technical solutions:

[0054] In the first embodiment, since the current railway flange welding is to disassemble the rollers of the motor vehicle and transport them to the workshop for welding. Since the current welding technologies are all for indoor welding, there are certain limitations for the flange welding of railway equipment. It is necessary to first disassemble the entire rollers on the motor vehicle. For the motor vehicle, this is a time-consuming and laborious behavior, and the disassembly process of the motor vehicle rollers is relatively complex, and the reinstallation is too complicated. Moreover, the railway flanges of the motor vehicle may be worn outdoors, making it more difficult to transport them to the workshop for welding. It is necessary to replace and weld the railway flanges in a timely manner. When the railway flanges are disassembled, the new railway flanges are fitted to the motor vehicle rollers.

[0055] The welding system for flange parts used in railway equipment includes a base unit 1. A welding unit 2 is installed at the middle position of the base unit 1. A railway flange part 3 is arranged at the middle position of the base unit 1. The welding unit 2 is set in the middle of the railway flange part 3. The railway flange part 3 is suspended by an external support equipment, and then the base unit 1 provides auxiliary support for the railway flange part 3 to prevent the railway flange part 3 from shifting. Moreover, the base unit 1 can adapt to the size of the railway flange part 3. By adjusting the position of the base unit 1, the welding unit 2 can be at the central position of the railway flange part 3, facilitating subsequent welding.

[0056] The base unit 1 includes a base plate 12. A support base 16 is installed on the base plate 12. An auxiliary slide rail 17 is installed at the middle position of the support base 16. A drive motor 19 is installed on the auxiliary slide rail 17. A rotating mechanism 18 is installed at the output end of the drive motor 19. The auxiliary slide rail 17 includes an auxiliary slide table, an auxiliary motor, and a slide rail. The output end of the auxiliary motor is installed with a driving gear, and the driving gear cooperates with the slide rail to enable the auxiliary slide table to move. The auxiliary slide table drives the drive motor 19 to move, so that the drive motor 19 is aligned with the circular axis of the railway flange part 3. The welding unit 2 includes a welding base 21. The welding base 21 is installed at the end of the rotating mechanism 18 away from the drive motor 19. A welding robotic arm 22 is installed on the welding base 21. A welding head 23 is installed at the output end of the welding robotic arm 22. The welding robotic arm 22 can rotate on the welding base 21 to adjust the up and down position, so that the welding head 23 fits against the inner wall of the railway flange part 3, achieving the effect of adapting to railway flange parts 3 of different sizes. The railway flange part 3 includes a railway flange 31 and a welding disc 32 installed on one side of the railway flange 31. The railway flange 31 is welded on one side of the welding disc 32. The welding head 23 abuts against the gap where the railway flange 31 and the welding disc 32 are in contact for welding.

[0057] Mobile auxiliary wheels 11 are installed in a rectangular shape below the base plate 12. A support slide rail 13 is installed at the bottom of the support base 16. A support mechanism 14 is slidably installed on the support slide rail 13. An auxiliary mechanism 15 is installed at the top of the support base 16. The support mechanism 14 fits against the bottom of the railway flange part 3, and the auxiliary mechanism 15 fits against the side of the railway flange part 3. The mobile auxiliary wheels 11 can drive the base plate 12 to move, improving the portability of the entire mechanism and facilitating outdoor operations. The support mechanism 14 moves on the support slide rail 13 to facilitate supporting the gap where the railway flange 31 and the welding disc 32 are in contact to prevent deviation. The support mechanism 14 includes a support rod and a telescopic disc. The support rod can move up and down in the telescopic disc for support. The auxiliary mechanism 15 supports the side of the railway flange 31 to prevent rotation and outward deviation. The auxiliary mechanism 15 includes an auxiliary support rod and an auxiliary disc. The auxiliary support rod moves to a suitable support position within the auxiliary disc. By setting the support mechanism 14 and the auxiliary mechanism 15, the effect of being able to support most railway flange parts 3 is achieved.

[0058] By setting the moving auxiliary wheel 11 to drive the movement of the substrate 12, the supporting mechanism 14 includes a supporting rod and a telescopic disc. The supporting rod can move up and down within the telescopic disc, and the auxiliary mechanism 15 supports the side of the railway flange 31, achieving the effects of improving the portability of the mechanism and the stability of supporting the railway flange part 3.

[0059] In the second embodiment, since the flange for railway equipment is welded without disassembling the roller, it is necessary to protect the inside of the roller to prevent the flying metal or slag during the welding process from damaging the parts inside the roller. And there are dense wirings around the roller, and the flying metal or slag will reduce the durability of the wiring part or directly damage it, causing potential safety hazards. During the process of protecting against the splash, due to the small operation space for welding, the splashed slag will bounce on the welding surface of the roller, resulting in deviations in the smoothness and dimensional accuracy of the workpiece surface.

[0060] A protection unit 4 is installed on one side of the welding unit 2. The protection unit 4 includes a driving base 41 installed on the outer wall of the rotating mechanism 18. A protection motor 42 is installed on the driving base 41. On the side of the driving base 41 away from the transmission motor 19, there is an installation disc 43. A driving wheel 44 is arranged on the installation disc 43. The output end of the protection motor 42 is installed with the driving wheel 44, and the output end of the protection motor 42 is connected to the driving wheel 44. A second driven wheel 46 is installed on the installation disc 43 in a fitting manner with the driving wheel 44. A first driven wheel 45 is also installed on the installation disc 43 in a fitting manner with the second driven wheel 46. A first telescopic rod 47 is installed on the side of the first driven wheel 45 away from the rotating mechanism 18. A second telescopic rod 48 is installed on the side of the second driven wheel 46 away from the rotating mechanism 18. The ends of the first telescopic rod 47 and the second telescopic rod 48 away from the rotating mechanism 18 are both installed with splash-proof mechanisms 49. The driving base 41 is installed on the rotating mechanism 18. When the rotating mechanism 18 rotates, it drives the driving base 41 to rotate, synchronously driving the installation disc 43 to rotate. The first telescopic rod 47 and the second telescopic rod 48 extend, and the splash-proof mechanisms 49 are attached to the inner wall surface of the railway flange part 3. The midline position of the splash-proof mechanisms 49 is aligned with the gap where the railway flange 31 is in contact with the welding disc 32. The protection motor 42 drives the driving wheel 44 to rotate. The driving wheel 44 meshes with the second driven wheel 46, and the second driven wheel 46 meshes with the first driven wheel 45. The first driven wheel 45 and the second driven wheel 46 rotate synchronously until the splash-proof mechanisms 49 protect the welding head 23, preventing the welding slag generated during welding from falling to other positions that do not need to be welded and causing adhesion, which affects subsequent use.

[0061] The two splash-proof mechanisms 49 include splash-proof shell plates 491. The shapes of the two splash-proof mechanisms 49 are fitted. The shape of the splash-proof shell plate 491 is irregular. The splash-proof shell plate 491 is hollowly arranged to provide a welding space for the welding head 23. A water-cooling pipe 4911 is arranged inside the splash-proof shell plate 491. When the metal slag splashed during welding flies, the two splash-proof mechanisms 49 can protect the splashed metal slag in the cavity formed by the two splash-proof shell plates 491. The water-cooling pipes 4911 are evenly distributed inside the side wall of the splash-proof shell plate 491. The water-cooling pipes 4911 can reduce the internal temperature of the splash-proof mechanism 49 and prevent the excessive temperature from affecting the performance of the welding material and the welding quality, achieving the effect of reducing the internal temperature of the two splash-proof mechanisms 49 during the welding process.

[0062] A splash-proof motor 492 is fixedly installed at the middle position on one side of the splash-proof shell plate 491. The output end of the splash-proof motor 492 penetrates the side wall of the splash-proof shell plate 491 and a protection baffle 494 is rotatably installed. On the side of the splash-proof shell plate 491 away from the railway flange 3, a protection groove 493 is arranged. The shape of the protection groove 493 fits the output end of the welding head 23. When the splash-proof motor 492 rotates, it drives the protection baffle 494 to rotate, and the rebounded metal slag falls onto the surface of the protection baffle 494. The length of the protection baffle 494 is less than the length of the splash-proof shell plate 491, restricting the rebounded metal slag in the enclosed space formed by the protection baffle 494 and the splash-proof shell plate 491.

[0063] By setting the shapes of the two splash-proof mechanisms 49 to be fitted and the two splash-proof shell plates 491 to be in contact, the output end of the welding head 23 is protected inside, achieving the effects of preventing the metal slag splashed during welding from flying and protecting the parts around the roller.

[0064] By setting the splash-proof motor 492 to rotate and drive the protection baffle 494 to rotate, the rebounded metal slag falls onto the surface of the protection baffle 494. The length of the protection baffle 494 is less than the length of the splash-proof shell plate 491, restricting the rebounded metal slag in the enclosed space formed by the protection baffle 494 and the splash-proof shell plate 491. During the rotation of the protection baffle 494, the rebounded metal slag will be collected towards the inner wall of the splash-proof shell plate 491, minimizing the impact caused by the rebound as much as possible, achieving the effects of preventing the metal slag from rebounding inside the splash-proof shell plate 491 and protecting the welding part.

[0065] A cleaning module 495 is arranged inside the protection baffle 494. The cleaning module 495 cleans the metal slag adhered to the surface of the protection baffle 494 after rebounding. The cleaning module 495 includes a cleaning motor 4951. The cleaning motor 4951 is arranged inside the protection baffle 494. A speed reducer 4952 is installed at the output end of the cleaning motor 4951. The speed reducer 4952 includes an input end and an output end. The output end of the cleaning motor 4951 is connected to the input end of the speed reducer 4952.

[0066] A cleaning lead screw 4953 is installed at the output end of the speed reducer 4952. A cleaning slide block 4954 is rotatably installed on the cleaning lead screw 4953. A cleaning scraper 4955 is installed on the cleaning slide block 4954. The cleaning scraper 4955 is in contact with the surface of the protective baffle 494. The shape of the cleaning scraper 4955 is wedge-shaped. The shape of the cleaning scraper 4955 can better clean the metal slag on the surface of the protective baffle 494, and the shape of the cleaning scraper 4955 can prevent the adhesion of metal slag, achieving better cleaning and anti-adhesion effects. The cleaning motor 4951 rotates to drive the cleaning lead screw 4953 to rotate. The cleaning slide block 4954 slides on the cleaning lead screw 4953. The movement of the cleaning slide block 4954 drives the cleaning scraper 4955 to move. The cleaning scraper 4955 cleans the solidified metal slag rebounded on the protective baffle 494, avoiding the need to disassemble and clean the protective baffle 494 later.

[0067] By setting the cleaning slide block 4954 to drive the cleaning scraper 4955 to move, the cleaning scraper 4955 cleans the solidified metal slag rebounded on the protective baffle 494, achieving the effect of directly cleaning the metal slag on the protective baffle 494 during the anti-rebound process.

[0068] Example 3: Since there will be remaining welding residues inside the welded railway flange 3 after welding, if the welding residues are not cleaned immediately after welding, the weld will crack, posing an installation hazard, and stress concentration will occur. The scale that has not been cleaned for a long time will rust, and the rust will reduce the strength and corrosion resistance of the weld.

[0069] A coating unit 5 is provided at the connection position between the protection unit 4 and the base unit 1. The coating unit 5 includes a coating rod 51. A scraping mechanism 54 is provided at one end of the coating rod 51 away from the rotating mechanism 18. A driving mounting plate 52 is installed on the side wall of the coating rod 51 at one end away from the rotating mechanism 18. A coating motor 53 is installed on the driving mounting plate 52. The output end of the coating motor 53 is connected to the scraping mechanism 54. One end of the coating rod 51 away from the scraping mechanism 54 is installed on the mounting disc 43. The coating rod 51 is a telescopic rod, and the coating rod 51 can drive the scraping mechanism 54 to approach the inner wall of the railway flange 3.

[0070] The scraping mechanism 54 includes a hinged frame 542. A scraping rotating shaft 541 is arranged in the middle of the hinged frame 542. The scraping rotating shaft 541 penetrates through one end of the coating rod 51 close to the coating motor 53. The output end of the coating motor 53 is connected to the scraping rotating shaft 541. A scraping plate 543 is installed at one end of the scraping rotating shaft 541 away from the coating motor 53. The shape of the scraping plate 543 is triangular. The inside of the scraping plate 543 is hollowed out. The scraping plate 543 cleans the oxides on the inner wall of the railway flange 3. The shape design of the scraping plate 543 can collect the oxides into the inside of the scraping plate 543, avoiding secondary accumulation of the scraped oxides after scraping.

[0071] A connecting plate 544 is installed on the side of the scraping plate 543 without an opening. Driving cylinders 545 are installed on both sides of the connecting plate 544. The output ends of the driving cylinders 545 are installed with lifting plates 547. A coating roller 546 is rotatably installed between the two lifting plates 547. The driving cylinder 545 can drive the lifting plate 547 to approach the inner wall of the railway flange 3. When the transmission motor 19 drives the rotating mechanism 18 to rotate, it can drive the coating rod 51 to rotate. The coating rod 51 drives the scraping plate 543 to scrape the oxide layer on the inner wall of the railway flange. After the scraping plate 543 finishes cleaning, the driving cylinder 545 extends, driving the coating roller 546 to approach the inner wall of the railway flange 3. The coating roller 546 fits with the cleaned inner wall of the railway flange 3. The rotating mechanism 18 drives the coating rod 51 to rotate, synchronously driving the coating roller 546 to clean the inner wall of the railway flange 3. The scraping plate 543 and the coating roller 546 clean and brush the inner wall of the railway flange 3, avoiding the need for secondary cleaning later, achieving the effect of being able to apply a special cleaning agent while cleaning the welding oxide layer.

[0072] By setting a scraping plate 543 at one end of the scraping rotating shaft 541 away from the coating motor 53, the shape of the scraping plate 543 is triangular, and the inside of the scraping plate 543 is hollowed out. The driving cylinder 545 drives the coating roller 546 to approach the inner wall of the railway flange 3. The coating roller 546 fits with the cleaned inner wall of the railway flange 3, achieving the effect of being able to clean the oxide layer of the welded part on the inner wall of the railway flange 3 and directly apply a special cleaning agent after cleaning.

[0073] The welding process of the flange parts for railway equipment, using the above-mentioned welding system for the flange parts of railway equipment, includes the following steps:

[0074] S1. Lift the welding unit 2 to a suitable position, and the base unit 1 assists in clamping the welding unit 2;

[0075] S11. After lifting the welding unit 2 to a proper position, the support mechanism 14 moves to a proper position on the support slide rail 13. The support mechanism 14 rises to support the welding unit 2 to prevent deviation, and the auxiliary mechanism 15 limits the side of the railway flange 3 to prevent rotation.

[0076] S2. After clamping, the protection motor 42 drives the driving wheel 44 to rotate forward. The driving wheel 44 drives the first driven wheel 45 and the second driven wheel 46 to rotate. The first telescopic rod 47 and the second telescopic rod 48 extend and approach each other. The two splash-proof mechanisms 49 approach each other to protect the welding unit 2 in the cavity formed by the two splash-proof mechanisms 49.

[0077] S21. After clamping, the protection motor 42 drives the driving wheel 44 to rotate. The driving wheel 44 meshes with the second driven wheel 46, and the second driven wheel 46 meshes with the first driven wheel 45. The first driven wheel 45 and the second driven wheel 46 rotate synchronously. When the two splash-proof mechanisms 49 approach each other, the output end of the welding head 23 can be placed in the rectangular clamping groove formed by the two protection grooves 493.

[0078] S3. After the splash-proof mechanism 49 protects the output end of the welding head 23, the transmission motor 19 drives the rotating mechanism 18 to rotate. The rotating mechanism 18 drives the welding unit 2 to rotate, and the welding unit 2 welds the railway flange 3. The protection unit 4 protects the periphery of the welding unit 2.

[0079] S31. After the splash-proof mechanism 49 protects the output end of the welding head 23, the rotating mechanism 18 rotates to drive the welding base 21 to rotate. The welding base 21 drives the welding head 23 to rotate. The protection unit 4 rotates following the rotating mechanism 18 to protect the splashed metal slag inside the splash-proof shell plate 491.

[0080] S4. During the welding of the railway flange 3 by the welding unit 2, the inside of the splash-proof mechanism 49 cleans the metal slag that rebounds after splashing during the welding process.

[0081] S41. During the protection of the welding head 23 by the splash-proof shell plate 491, the splash-proof motor 492 rotates to drive the protection baffle 494 to rotate to block the metal slag that rebounds after splashing. The cleaning motor 4951 drives the cleaning lead screw 4953 to rotate, driving the cleaning scraper 4955 to clean the surface of the protection baffle 494 back and forth.

[0082] S5. After welding the railway flange 3, the protection motor 42 drives the driving wheel 44 to rotate in reverse. The first telescopic rod 47 and the second telescopic rod 48 retract and move away from each other.

[0083] S51. After the welding of the railway flange 3 is completed, the protection motor 42 drives the driving wheel 44 to reverse, the first telescopic rod 47 and the second telescopic rod 48 retract and move away from each other, and the two splash-proof mechanisms 49 move away from each other.

[0084] S6. After the first telescopic rod 47 and the second telescopic rod 48 move away from each other, the coating unit 5 extends to clean the oxides left by the welding and apply a special cleaning agent after the cleaning.

[0085] S61. After the first telescopic rod 47 and the second telescopic rod 48 move away from each other, the coating rod 51 extends to the inner wall position of the railway flange 3, and the coating motor 53 rotates to drive the coating motor 53 to rotate to a suitable position to clean the oxides left by the welding.

[0086] S62. The scraping plate 543 cleans the oxides on the inner wall of the railway flange 3 and collects the oxides into the inside of the scraping plate 543.

[0087] S63. When the scraping plate 543 finishes cleaning, the driving cylinder 545 extends to drive the coating roller 546 to approach the inner wall of the railway flange 3, and the coating roller 546 fits with the cleaned inner wall of the railway flange 3.

[0088] S64. The transmission motor 19 drives the rotating mechanism 18 to rotate, and at the same time drives the coating unit 5 to rotate. The scraping plate 543 and the coating roller 546 clean and brush the inner wall of the railway flange 3.

[0089] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

Claims

1. A welding system for flange parts for railway equipment, characterized by: It comprises a base unit (1), a welding unit (2) is installed in the middle of the base unit (1), a railway flange (3) is arranged in the middle of the base unit (1), the welding unit (2) is arranged in the middle of the railway flange (3), a protection unit (4) is installed on one side of the welding unit (2), and a coating unit (5) is arranged at the position where the protection unit (4) is connected to the base unit (1); The base unit (1) comprises a base plate (12), a support base (16) is mounted on the base plate (12), an auxiliary slide rail (17) is mounted at a middle position of the support base (16), a transmission motor (19) is mounted on the auxiliary slide rail (17), a rotation mechanism (18) is mounted at the output end of the transmission motor (19), the welding unit (2) comprises a welding base (21), the welding base (21) is mounted at an end of the rotation mechanism (18) away from the transmission motor (19), a welding robot arm (22) is mounted on the welding base (21), a welding head (23) is mounted at the output end of the welding robot arm (22), and the railway flange (3) comprises a railway flange (31) and a welding plate (32) mounted on one side of the railway flange (31); The protection unit (4) comprises a driving base (41) mounted on the outer wall of the rotating mechanism (18), a protection motor (42) being mounted on the driving base (41), a mounting plate (43) being provided on a side of the driving base (41) away from the transmission motor (19), a driving wheel (44) being provided on the mounting plate (43), an output end of the protection motor (42) being connected to the driving wheel (44), and a second driven wheel being mounted on the mounting plate (43) in a manner matching the driving wheel (44). (46), a first driven wheel (45) is also mounted on the mounting plate (43) in a manner to fit with the second driven wheel (46), a first telescopic rod (47) is mounted on a side of the first driven wheel (45) away from the rotating mechanism (18), a second telescopic rod (48) is mounted on a side of the second driven wheel (46) away from the rotating mechanism (18), and a splash-proof mechanism (49) is mounted on one end of each of the first telescopic rod (47) and the second telescopic rod (48) away from the rotating mechanism (18); The two splash-proof mechanisms (49) comprise a splash-proof shell plate (491), the splash-proof shell plate (491) is of a special shape, the splash-proof shell plate (491) is hollow, a water cooling pipe (4911) is arranged inside the splash-proof shell plate (491), and the water cooling pipe (4911) is evenly distributed inside the side wall of the splash-proof shell plate (491); A splash-proof motor (492) is fixedly mounted in the middle of one side of the splash-proof shell plate (491); an output end of the splash-proof motor (492) penetrates the side wall of the splash-proof shell plate (491) and is rotatably mounted with a protective baffle (494); a protective groove (493) is provided on a side of the splash-proof shell plate (491) away from the railway flange (3); the shape of the protective groove (493) matches the output end of the welding head (23).

2. The welding system for flange parts for railway equipment according to claim 1, characterized in that: A movable auxiliary wheel (11) is installed in a rectangular shape below the base plate (12); a support slide rail (13) is installed at the bottom of the support base (16); a support mechanism (14) is slidably installed on the support slide rail (13); an auxiliary mechanism (15) is installed on the top of the support base (16); the support mechanism (14) is in contact with the bottom of the railway flange (3); and the auxiliary mechanism (15) is in contact with the side of the railway flange (3).

3. The welding system for flange parts for railway equipment according to claim 1, characterized in that: A cleaning module (495) is arranged inside the protective baffle (494), and the cleaning module (495) includes a cleaning motor (4951). The cleaning motor (4951) is arranged inside the protective baffle (494), and a reducer (4952) is installed at the output end of the cleaning motor (4951), and the reducer (4952) includes an input end and an output end, and the output end of the cleaning motor (4951) is connected to the input end of the reducer (4952).

4. The welding system for flange parts for railway equipment according to claim 3, characterized in that: A cleaning screw (4953) is installed at the output end of the reducer (4952), a cleaning slide (4954) is rotatably installed on the cleaning screw (4953), a cleaning scraper (4955) is installed on the cleaning slide (4954), the cleaning scraper (4955) is in contact with the surface of the protective baffle (494), and the shape of the cleaning scraper (4955) is wedge-shaped.

5. The welding system for flange parts for railway equipment according to claim 1, characterized in that: The smearing unit (5) comprises a smearing rod (51), one end of the smearing rod (51) away from the rotating mechanism (18) is provided with a scraping mechanism (54), a driving mounting plate (52) is mounted on the side wall of the end of the smearing rod (51) away from the rotating mechanism (18), a smearing motor (53) is mounted on the driving mounting plate (52), and an output end of the smearing motor (53) is connected to the scraping mechanism (54).

6. The welding system for flange parts for railway equipment according to claim 5, characterized in that: The scraping mechanism (54) comprises an articulated frame (542), a scraping shaft (541) is arranged in the middle of the articulated frame (542), the scraping shaft (541) penetrates one end of the coating rod (51) close to the coating motor (53), the output end of the coating motor (53) is connected to the scraping shaft (541), and a scraping plate (543) is installed at one end of the scraping shaft (541) away from the coating motor (53), the scraping plate (543) is in the shape of a triangle, and the interior of the scraping plate (543) is hollowed out.

7. The welding system for flange parts for railway equipment according to claim 6, characterized in that: A connecting plate (544) is installed on the unopened side of the scraper plate (543), driving cylinders (545) are installed on both sides of the connecting plate (544), a lifting plate (547) is installed on the output end of the driving cylinder (545), and a paint roller (546) is rotatably installed between the two lifting plates (547).

8. A welding process for flange parts for railway equipment, using a welding system for flange parts for railway equipment as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1, lifting the welding unit (2) to a suitable position, and the base unit (1) assists in clamping the welding unit (2); S2. After the clamping is completed, the protective motor (42) drives the driving wheel (44) to rotate forward, and the driving wheel (44) drives the first driven wheel (45) and the second driven wheel (46) to rotate, the first telescopic rod (47) and the second telescopic rod (48) extend and approach each other, and the two splash-proof mechanisms (49) approach each other, so that the welding unit (2) is protected in the cavity formed by the two splash-proof mechanisms (49); S3. After the anti-splash mechanism (49) protects the output end of the welding head (23), the transmission motor (19) drives the rotating mechanism (18) to rotate, the rotating mechanism (18) drives the welding unit (2) to rotate, the welding unit (2) welds the railway flange (3), and the protection unit (4) protects the surroundings of the welding unit (2); S4, during the process of welding the railway flange (3) by the welding unit (2), the splash-proof mechanism (49) cleans the metal slag that rebounds after splashing during the welding process; S5. After the railway flange (3) is welded, the protective motor (42) drives the driving wheel (44) to reverse, and the first telescopic rod (47) and the second telescopic rod (48) are retracted and move away from each other; S6. After the first telescopic rod (47) and the second telescopic rod (48) move away from each other, the coating unit (5) extends to clean the oxides left by welding and then applies a special cleaning agent after cleaning.

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