Welding system of flange part for railway equipment and welding process thereof

Abstract

The invention is suitable for the technical field of welding, and provides a welding system and a welding process of a flange part for railway equipment, the welding system comprises a base unit, a welding unit is mounted in the middle of the base unit, a railway flange part is arranged in the middle of the base unit, and 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 smearing unit is arranged at the position where the protection unit is connected with the base unit, the base unit comprises a base plate, a supporting base is installed on the base plate, an auxiliary sliding rail is installed in the middle of the supporting base, a transmission motor is installed on the auxiliary sliding rail, and the transmission motor is connected with the base plate. And a rotating mechanism is mounted at the output end of the transmission motor, so that the problem that parts in the roller are damaged by splashing metal or slag in the welding process is solved, and the effects of preventing the splashing metal slag splashed in the welding process from splashing and protecting the parts around the roller are achieved.

Description

Technical Field

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

[0002] Welding system is a device used to connect metals or other materials together by heating, pressurizing or a combination of both. It generates high temperature to melt the material locally, and then cools and solidifies to form a strong connection. Welding system is widely used in manufacturing, construction, automotive industry, aerospace and other fields to manufacture structural parts, pipelines, containers, mechanical parts, etc.

[0003] At present, the welding system of flange parts for railway equipment on the market is usually processed in the workshop. First, the welding materials are checked, and then the parent material is cut and polished for pre-treatment. Then the flange is clamped to ensure that the flange position does not shift. The appropriate welding method is selected, the welding speed and wire feeding speed are controlled, and the welding slag and spatter are cleaned in time during the welding process. After welding, the oxides generated during the welding process are cleaned.

[0004] Since the current welding technology is aimed at indoor welding, there are certain limitations for flange welding for railway equipment. The entire roller on the EMU must be disassembled first. For the EMU, this is a time-consuming and labor-intensive behavior, and the disassembly process of the EMU roller is relatively complicated, and reinstallation is too complicated. If the flange for railway equipment is welded without disassembling the roller, the inside of the roller must be protected to prevent splashing metal or slag from damaging the parts inside the roller during welding, and there are tight connections around the roller. The splashing metal or slag will reduce the durability of some of the connections or directly damage them, causing safety hazards. In the process of splash protection, due to the small operating space for welding, the splashing slag will rebound on the welding surface of the roller, causing deviations in the smoothness and dimensional accuracy of the workpiece surface. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a welding system and a welding process for flange parts for railway equipment.

[0006] To achieve the above object, the present invention provides the following technical solutions: A welding system for flange parts for railway equipment includes a base unit, a welding unit is installed in the middle position of the base unit, a railway flange is arranged in the middle position of the base unit, the welding unit is arranged in the middle of the railway flange, a protective unit is installed on one side of the welding unit, and a smearing unit is arranged at the position where the protective unit is connected to the base unit.

[0007] The base unit includes a substrate, a support base is installed on the substrate, an auxiliary slide rail is installed in the middle position of the support base, a transmission motor is installed on the auxiliary slide rail, a rotating mechanism is installed at the output end of the transmission motor, the welding unit includes a welding base, the welding base is installed at one end of the rotating mechanism away from the transmission motor, a welding robot arm is installed on the welding base, a welding head is installed at the output end of the welding robot arm, and the railway flange includes a railway flange and a welding plate installed on one side of the railway flange.

[0008] The protection unit includes a driving base installed on the outer wall of the rotating mechanism, a protection motor is installed on the driving base, a mounting disk is provided on the side of the driving base away from the transmission motor, a driving wheel is provided on the mounting disk, the output end of the protection motor is connected to the driving wheel, a second driven wheel is mounted on the mounting disk in a fit with the driving wheel, a first driven wheel is also mounted on the mounting disk in a fit with the second driven wheel, a first telescopic rod is installed on the side of the first driven wheel away from the rotating mechanism, a second telescopic rod is installed on the side of the second driven wheel away from the rotating mechanism, and a splash-proof mechanism is installed on one end of the first telescopic rod and the second telescopic rod away from the rotating mechanism.

[0009] The present invention is further configured as follows: a movable auxiliary wheel is installed in the rectangle below the base plate, a supporting slide rail is installed at the bottom of the supporting base, a supporting mechanism is slidably installed on the supporting slide rail, an auxiliary mechanism is installed on the top of the supporting base, the supporting mechanism is fitted with the bottom of the railway flange, and the auxiliary mechanism is fitted with the side of the railway flange.

[0010] The present invention is further configured as follows: the two splash-proof mechanisms include a splash-proof shell plate, the splash-proof shell plate is in an irregular shape, the splash-proof shell plate is hollow, a water-cooling pipe is arranged inside the splash-proof shell plate, and the water-cooling pipe is evenly distributed inside the side wall of the splash-proof shell plate.

[0011] The present invention is further configured as follows: a splash-proof motor is fixedly installed in the middle position of one side of the splash-proof shell plate, the output end of the splash-proof motor penetrates the side wall of the splash-proof shell plate and is rotatably installed with a protective baffle, and a protective groove is provided on the side of the splash-proof shell plate away from the railway flange, and the shape of the protective groove matches the output end of the welding head.

[0012] By adopting the above technical solution, two splash-proof mechanisms are arranged to match each other in shape, and two splash-proof shell plates are fitted together to protect the output end of the welding head, thereby achieving the effect of preventing the metal slag splashed by welding from splashing and protecting the parts around the roller.

[0013] The present invention is further configured as follows: a cleaning module is arranged inside the protective baffle, the cleaning module includes a cleaning motor, the cleaning motor is arranged inside the protective baffle, a reducer is installed at the output end of the cleaning motor, the 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 reducer.

[0014] The present invention is further configured as follows: a cleaning screw is installed at the output end of the reducer, a cleaning slide is rotatably installed on the cleaning screw, a cleaning scraper is installed on the cleaning slide, the cleaning scraper is in contact with the surface of the protective baffle, and the shape of the cleaning scraper is wedge-shaped.

[0015] By adopting the above technical solution, a splash-proof motor is arranged to rotate to drive the protective baffle to rotate, so that the rebounded metal slag falls onto the surface of the protective baffle. The length of the protective baffle is smaller than the length of the splash-proof shell plate, and the rebounded metal slag is confined in the closed space formed by the protective baffle and the splash-proof shell plate, thereby achieving the effect of preventing the metal slag from rebounding in the splash-proof shell plate.

[0016] The present invention is further configured as follows: the coating unit includes a coating rod, a scraping mechanism is provided at one end of the coating rod away from the rotating mechanism, a driving mounting plate is installed on the side wall of the end of the coating rod away 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.

[0017] The present invention is further configured as follows: the scraping mechanism includes an articulated frame, a scraping shaft is arranged in the middle of the articulated frame, the scraping shaft penetrates the end of the coating rod close to the coating motor, the output end of the coating motor is connected to the scraping shaft, and a scraper plate is installed at the end of the scraping shaft away from the coating motor, the scraper plate is in the shape of a triangle, and the interior of the scraper plate is hollowed out.

[0018] The present invention is further configured as follows: a connecting plate is installed on the unopened side of the scraper plate, driving cylinders are installed on both sides of the connecting plate, a lifting plate is installed on the output end of the driving cylinder, and a paint roller is rotatably installed between the two lifting plates.

[0019] By adopting the above technical solution, a scraper plate is installed at one end of the scraping shaft away from the coating motor. The scraper plate is in the shape of a triangle, and the interior of the scraper plate is hollowed out. The driving cylinder drives the paint roller to approach the inner wall of the railway flange, and the paint roller fits the cleaned inner wall of the railway flange, so that the oxide layer of the welding part of the inner wall of the railway flange can be cleaned and a special cleaning agent can be directly applied after cleaning.

[0020] The welding process of the flange parts for railway equipment, according to the welding system for the flange parts for railway equipment described above, comprises the following steps: S1. Lift the welding unit to a suitable position, and the base unit assists in clamping the welding unit.

[0021] S2. After clamping, the protective 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, and the two splash-proof mechanisms approach to protect the welding unit in the cavity formed by the two splash-proof mechanisms.

[0022] S3. After the anti-splash mechanism protects the output end of the welding head, the transmission motor drives the rotating mechanism to rotate, the rotating mechanism drives the welding unit to rotate, the welding unit welds the railway flange, and the protection unit protects the surrounding of the welding unit; S4. When the welding unit is welding the railway flange, the splash-proof mechanism cleans the metal slag that rebounds after splashing during the welding process.

[0023] S5. After the railway flange is welded, the protective motor drives the driving wheel to reverse, and the first telescopic rod and the second telescopic rod retract and move away from each other.

[0024] S6. After the first telescopic rod and the second telescopic rod are separated, the coating unit extends to clean the oxides left by welding and applies a special cleaning agent after cleaning.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the shape matching 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, so as to prevent the metal slag splashed by welding from splashing and protect the parts around the roller.

[0026] 2. The protective baffle is driven to rotate by the anti-splash motor, and the rebounded metal slag falls onto the surface of the protective baffle. The length of the protective baffle is shorter than the length of the anti-splash shell plate, and the rebounded metal slag is confined in the closed space formed by the protective baffle and the anti-splash shell plate, thereby achieving the effect of preventing the metal slag from rebounding in the anti-splash shell plate.

[0027] 3. A scraper plate is installed at the end of the scraping shaft away from the coating motor. The scraper plate is triangular in shape and the interior of the scraper plate is hollowed out. The driving cylinder drives the paint roller to approach the inner wall of the railway flange. The paint roller fits the cleaned inner wall of the railway flange, so that the oxide layer of the welding part of the inner wall of the railway flange can be cleaned and a special cleaning agent can be directly applied after cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1The figure is a schematic diagram of the overall structure of the welding system of the flange parts for railway equipment according to the present invention.

[0029] Figure 2 It is a schematic diagram of the overall structure of the base unit in the present invention.

[0030] Figure 3 It is a schematic diagram of the overall structure of the welding unit in the present invention.

[0031] Figure 4 It is a schematic diagram of the overall structure of the railway flange in the present invention.

[0032] Figure 5 It is a schematic diagram of the overall structure of the protection unit in the present invention.

[0033] Figure 6 It is a schematic diagram of the partial structure of the protection unit in the present invention.

[0034] Figure 7 It is a schematic diagram of the matching structure of the second telescopic rod and the splash-proof mechanism in the present invention.

[0035] Figure 8 It is a schematic diagram of the overall structure of the splash-proof mechanism in the present invention.

[0036] Fig. 9 It is a schematic diagram of the installation structure of the water cooling pipe in the present invention.

[0037] Fig.10 It is a schematic diagram of the matching structure of the protective baffle and the cleaning module in the present invention.

[0038] Fig.11 It is a schematic diagram of the partial structure of the cleaning module in the present invention.

[0039] Fig.12 It is a schematic diagram of the overall structure of the smearing unit in the present invention.

[0040] Fig.13 It is a schematic diagram of the overall structure of the scraping mechanism in the present invention.

[0041] Fig.14 It is a schematic diagram of the overall structure of the scraper plate in the present invention.

[0042] Description of reference numerals: 1. base unit; 11. mobile auxiliary wheel; 12. base plate; 13. support rail; 14. support mechanism; 15. auxiliary mechanism; 16. support base; 17. auxiliary rail; 18. rotation mechanism; 19. transmission motor; 2. Welding unit; 21. Welding base; 22. Welding robot arm; 23. Welding head; 3. Railway flange; 31. Railway flange; 32. Welding plate; 4. Protection unit; 41. Driving base; 42. Protection motor; 43. Mounting plate; 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 shell 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 screw rod; 4954. Cleaning slide; 4955. Cleaning scraper; 5. Coating unit; 51. Coating rod; 52. Drive mounting plate; 53. Coating motor; 54. Scraping mechanism; 541. Scraping shaft; 542. Articulated frame; 543. Scraping plate; 544. Connecting plate; 545. Driving cylinder; 546. Paint roller; 547. Lifting plate. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0045] See also Figure 1-14 , the present invention provides the following technical solutions: Embodiment 1: Since the current railway flange welding is to disassemble the roller of the EMU and then transport it to the workshop for welding, and since the current welding technology is aimed at indoor welding, there are certain limitations for flange welding of railway equipment. The entire roller on the EMU needs to be disassembled first, which is time-consuming and labor-intensive for the EMU. In addition, the disassembly process of the EMU roller is relatively complicated, and reinstallation is too complicated. In addition, the railway flange of the EMU may be worn outdoors, so it is more difficult to transport it to the workshop for welding. It is necessary to replace and weld the railway flange in time. When the railway flange is disassembled, the new railway flange is fitted to the EMU roller.

[0046] A welding system for flange parts for railway equipment includes a base unit 1, a welding unit 2 is installed in the middle position of the base unit 1, a railway flange 3 is arranged in the middle position of the base unit 1, the welding unit 2 is arranged in the middle of the railway flange 3, the railway flange 3 is suspended by external support equipment, and the base unit 1 provides auxiliary support for the railway flange 3 to avoid the railway flange 3 from shifting, and the base unit 1 can adapt to the size of the railway flange 3, and by adjusting the position of the base unit 1, the welding unit 2 can be located in the center of the railway flange 3 to facilitate subsequent welding.

[0047] 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 in the middle of the support base 16, a transmission motor 19 is installed on the auxiliary slide rail 17, a rotating mechanism 18 is installed at the output end of the transmission motor 19, the auxiliary slide rail 17 includes an auxiliary slide, an auxiliary motor and a slide rail, an active tooth is installed at the output end of the auxiliary motor, the active tooth cooperates with the slide rail to enable the auxiliary slide to move, the auxiliary slide drives the transmission motor 19 to move, so that the transmission motor 19 is consistent with the circular axis of the railway flange 3, the welding unit 2 includes a welding base 21, and the welding base 21 is installed at The rotating mechanism 18 is at one end away from the transmission motor 19, and a welding robot arm 22 is installed on the welding base 21. A welding head 23 is installed at the output end of the welding robot arm 22. The welding robot arm 22 can rotate on the welding base 21 and adjust the up and down positions so that the welding head 23 fits with the inner wall of the railway flange 3 to achieve the effect of adapting to railway flanges 3 of different sizes. The railway flange 3 includes a railway flange 31 and a welding plate 32 installed on one side of the railway flange 31. The railway flange 31 is welded to one side of the welding plate 32, and the welding head 23 is against the gap between the railway flange 31 and the welding plate 32 for welding.

[0048] A movable auxiliary wheel 11 is installed in the rectangular shape below the base plate 12, a supporting slide rail 13 is installed at the bottom of the supporting base 16, a supporting mechanism 14 is slidably installed on the supporting slide rail 13, and an auxiliary mechanism 15 is installed on the top of the supporting base 16. The supporting mechanism 14 is fitted with the bottom of the railway flange 3, and the auxiliary mechanism 15 is fitted with the side of the railway flange 3. The movable auxiliary wheel 11 can drive the base plate 12 to move, thereby improving the portability of the entire mechanism and facilitating outdoor operations. The supporting mechanism 14 moves on the supporting slide rail 13 to facilitate supporting the gap between the railway flange 31 and the welding disk 32 to prevent deviation. The supporting mechanism 14 includes a supporting rod and a telescopic disk, and the supporting rod can move up and down in the telescopic disk 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 supporting position in the auxiliary disc. The supporting mechanism 14 and the auxiliary mechanism 15 are provided to achieve the effect of supporting most railway flanges 3.

[0049] The base plate 12 is driven to move by setting a movable auxiliary wheel 11, and the supporting mechanism 14 includes a supporting rod and a telescopic disk. The supporting rod can move up and down in the telescopic disk. The auxiliary mechanism 15 supports the side of the railway flange 31, thereby achieving the effect of improving the portability of the mechanism and the stability of the support for the railway flange 3.

[0050] 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 splashing metal or slag from damaging the internal parts of the roller during welding, and there are tight connections around the roller. The splashing metal or slag will reduce the durability of some connections or directly damage them, causing safety hazards. In the process of splash protection, due to the small operating space for welding, the splashing slag will rebound on the welding surface of the roller, causing deviations in the smoothness and dimensional accuracy of the workpiece surface.

[0051] 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, a mounting disk 43 is provided on the side of the driving base 41 away from the transmission motor 19, a driving wheel 44 is provided on the mounting disk 43, a driving wheel 44 is installed on the output end of the protection motor 42, the output end of the protection motor 42 is connected to the driving wheel 44, a second driven wheel 46 is installed on the mounting disk 43 in a fit with the driving wheel 44, a first driven wheel 45 is also installed on the mounting disk 43 in a fit 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, and the first telescopic rod 47 and the second telescopic rod 48 are installed. The end of the retracted rod 48 away from the rotating mechanism 18 is equipped with a splash-proof mechanism 49, the driving base 41 is installed on the rotating mechanism 18, the rotating mechanism 18 rotates to drive the driving base 41 to rotate, and synchronously drives the mounting plate 43 to rotate, the first telescopic rod 47 and the second telescopic rod 48 extend, the splash-proof mechanism 49 fits the inner wall surface of the railway flange 3, the centerline position of the splash-proof mechanism 49 is aligned with the gap between the railway flange 31 and the welding plate 32, the protective motor 42 drives the driving wheel 44 to rotate, the driving wheel 44 is meshed with the second driven wheel 46, the second driven wheel 46 is meshed with the first driven wheel 45, the first driven wheel 45 and the second driven wheel 46 rotate synchronously until the splash-proof mechanism 49 protects the welding head 23 to prevent the welding slag generated during welding from falling to other positions where welding is not required, causing adhesion and affecting subsequent use.

[0052] The two splash-proof mechanisms 49 include a splash-proof shell plate 491. The shapes of the two splash-proof mechanisms 49 are matched. The shape of the splash-proof shell plate 491 is irregular. The splash-proof shell plate 491 is hollow to provide a welding space for the welding head 23 to flow out. A water-cooling pipe 491 is arranged inside the splash-proof shell plate 491. When the metal slag splashed by welding splashes, 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 pipe 4911 is evenly distributed inside the side wall of the splash-proof shell plate 491. The water-cooling pipe 4911 can reduce the internal temperature of the splash-proof mechanism 49 to prevent excessive temperature from affecting the performance of the welding material and the quality of welding, thereby achieving the effect of reducing the internal temperature of the two splash-proof mechanisms 49 during the welding process.

[0053] A splash-proof motor 492 is fixedly installed in the middle position on one side of the splash-proof shell plate 491, and the output end of the splash-proof motor 492 penetrates the side wall of the splash-proof shell plate 491 and is rotatably installed with a protective baffle 494. A protective groove 493 is provided on the side of the splash-proof shell plate 491 away from the railway flange 3, and the shape of the protective groove 493 matches the output end of the welding head 23. When the splash-proof motor 492 rotates, it drives the protective baffle 494 to rotate, and the rebounded metal slag falls onto the surface of the protective baffle 494. The length of the protective baffle 494 is less than the length of the splash-proof shell plate 491, so the rebounded metal slag is limited to the closed space formed by the protective baffle 494 and the splash-proof shell plate 491.

[0054] By arranging two splash-proof mechanisms 49 with matching shapes and two splash-proof shell plates 491 fitting together, the output end of the welding head 23 is protected, thereby preventing the metal slag splashed by welding from splashing and protecting the parts around the roller.

[0055] By setting the anti-splash motor 492 to rotate and drive the protective baffle 494 to rotate, the rebounded metal slag will fall onto the surface of the protective baffle 494. The length of the protective baffle 494 is less than the length of the anti-splash shell plate 491, and the rebounded metal slag will be confined in the closed space formed by the protective baffle 494 and the anti-splash shell plate 491. During the rotation of the protective baffle 494, the rebounded metal slag will be collected on the inner wall of the anti-splash shell plate 491, which can minimize the impact of the rebound and achieve the effect of preventing the metal slag from rebounding in the anti-splash shell plate 491 and protecting the welding part.

[0056] A cleaning module 495 is provided inside the protective baffle 494. The cleaning module 495 cleans the metal slag that sticks to the surface of the protective baffle 494 after rebounding. The cleaning module 495 includes a cleaning motor 4951. The cleaning motor 4951 is provided inside the protective baffle 494. A reducer 4952 is installed at the output end of the cleaning motor 4951. The 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 reducer 4952.

[0057] A cleaning screw 4953 is installed at the output end of the reducer 4952, and a cleaning slide 4954 is rotatably installed on the cleaning screw 4953, and a cleaning scraper 4955 is installed on the cleaning slide 4954. The cleaning scraper 4955 fits the surface of the protective baffle 494, and 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 avoid the adhesion of the metal slag, so as to achieve better cleaning and anti-adhesion effects. The cleaning motor 4951 rotates to drive the cleaning screw 4953 to rotate, and the cleaning slide 4954 slides on the cleaning screw 4953. The movement of the cleaning slide 4954 drives the cleaning scraper 4955 to move, and the cleaning scraper 4955 cleans the metal slag that solidifies after rebounding on the protective baffle 494, so as to avoid the need to disassemble and clean the protective baffle 494 later.

[0058] The cleaning slide 4954 is provided to drive the cleaning scraper 4955 to move, and the cleaning scraper 4955 cleans the metal slag solidified after rebounding on the protective baffle 494, thereby achieving the effect of directly cleaning the metal slag on the protective baffle 494 during the anti-rebound process.

[0059] In the third embodiment, after welding, there will be welding residues inside the welded railway flange 3. If the welding residues are not cleaned directly after welding, the weld will crack, causing installation hazards and stress concentration problems. The oxide 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.

[0060] A coating unit 5 is provided at the position where the protection unit 4 is connected to the base unit 1, and 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 end of the coating rod 51 away from the rotating mechanism 18, and 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, and one end of the coating rod 51 away from the scraping mechanism 54 is installed on the mounting plate 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.

[0061] The scraping mechanism 54 includes an articulated frame 542, a scraping shaft 541 is arranged in the middle of the articulated frame 542, the scraping shaft 541 penetrates the 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 scraper plate 543 is installed at the end of the scraping shaft 541 away from the coating motor 53. The scraper plate 543 is in the shape of a triangle, and the interior of the scraper plate 543 is hollowed out. The scraper plate 543 cleans the oxide on the inner wall of the railway flange 3. The shape design of the scraper plate 543 can collect the oxide to the inside of the scraper plate 543 to avoid the secondary accumulation of the scraped oxide after scraping.

[0062] A connecting plate 544 is installed on the unopened side of the scraper plate 543, and 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. A paint 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, and the coating rod 51 drives the scraper plate 543 to scrape the oxide layer on the inner wall of the railway flange. When the scraper After the plate 543 is cleaned, the driving cylinder 545 is extended to drive the paint roller 546 to approach the inner wall of the railway flange 3, and the paint roller 546 is in contact with the cleaned inner wall of the railway flange 3. The rotating mechanism 18 drives the coating rod 51 to rotate, and synchronously drives the paint roller 546 to clean the inner wall of the railway flange 3. The scraper plate 543 and the paint roller 546 clean and brush the inner wall of the railway flange 3, avoiding the need for secondary cleaning later, and achieving the effect of applying a special cleaning agent while cleaning the welding oxide layer.

[0063] A scraper plate 543 is installed at one end of the scraping shaft 541 away from the coating motor 53. The scraper plate 543 is in a triangular shape, and the interior of the scraper plate 543 is hollowed out. The driving cylinder 545 drives the paint roller 546 to approach the inner wall of the railway flange 3. The paint roller 546 fits with the cleaned inner wall of the railway flange 3, so that the oxide layer of the welding part of the inner wall of the railway flange 3 can be cleaned and a special cleaning agent can be directly applied after cleaning.

[0064] The welding process of the flange parts for railway equipment, using the welding system of the flange parts for railway equipment, comprises the following steps: S1, lift the welding unit 2 to a suitable position, and the base unit 1 assists in clamping the welding unit 2; S11. After the welding unit 2 is lifted to a suitable position, the support mechanism 14 moves to a suitable position on the support slide rail 13. The support mechanism 14 rises to support the welding unit 2 to prevent it from deflecting. The auxiliary mechanism 15 limits the side of the railway flange 3 to prevent it from rotating.

[0065] S2. After the clamping is completed, the protection 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, so that the welding unit 2 is protected in the cavity formed by the two splash-proof mechanisms 49; S21. After clamping, the protective motor 42 drives the driving wheel 44 to rotate, the driving wheel 44 engages with the second driven wheel 46, the second driven wheel 46 engages with the first driven wheel 45, the first driven wheel 45 and the second driven wheel 46 rotate synchronously, and when the two splash-proof mechanisms 49 are close to each other, the output end of the welding head 23 can be placed in the rectangular slot formed by the two protective grooves 493.

[0066] 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, and 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 surrounding of the welding unit 2. 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, and the welding base 21 drives the welding head 23 to rotate. The protection unit 4 rotates along with the rotating mechanism 18 to protect the splashing metal slag inside the splash-proof shell plate 491.

[0067] S4, when the welding unit 2 is welding the railway flange 3, the splash-proof mechanism 49 cleans the metal slag that rebounds after splashing during the welding process; S41. During the protection process of the splash-proof shell plate 491 on the welding joint 23, the splash-proof motor 492 rotates to drive the protective baffle 494 to rotate, thereby blocking the metal slag that rebounds after splashing. The cleaning motor 4951 drives the cleaning screw 4953 to rotate, thereby driving the cleaning scraper 4955 to clean the surface of the protective baffle 494 back and forth.

[0068] 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 retract and move away from each other.

[0069] S51. After the railway flange 3 is welded, the protective motor 42 drives the driving wheel 44 to reverse, the first telescopic rod 47 and the second telescopic rod 48 are retracted and move away from each other, and the two splash-proof mechanisms 49 move away from each other.

[0070] 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 coats the special cleaning agent.

[0071] S61, after the first telescopic rod 47 and the second telescopic rod 48 move away from each other, the coating rod 51 extends toward the inner wall 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 oxide left by welding; S62, the scraper plate 543 cleans the oxides on the inner wall of the railway flange 3 and collects the oxides into the interior of the scraper plate 543; S63, when the scraper plate 543 has finished cleaning, the driving cylinder 545 extends out, driving the paint roller 546 to approach the inner wall of the railway flange 3, and the paint roller 546 is in contact with the cleaned inner wall of the railway flange 3; S64, the transmission motor 19 drives the rotating mechanism 18 to rotate, and at the same time drives the coating unit 5 to rotate, and the scraper plate 543 and the paint roller 546 clean and brush the inner wall of the railway flange 3.

[0072] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should 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 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).

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: The two splash-proof mechanisms (49) comprise a splash-proof shell plate (491), the splash-proof shell plate (491) being of a special shape, the splash-proof shell plate (491) being hollow, a water cooling pipe (4911) being arranged inside the splash-proof shell plate (491), and the water cooling pipe (4911) being evenly distributed inside the side wall of the splash-proof shell plate (491).

4. The welding system for flange parts for railway equipment according to claim 3, characterized in that: 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).

5. The welding system for flange parts for railway equipment according to claim 4, 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).

6. The welding system for flange parts for railway equipment according to claim 5, 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.

7. 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).

8. The welding system for flange parts for railway equipment according to claim 7, 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.

9. The welding system for flange parts for railway equipment according to claim 8, 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).

10. 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 9, 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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