An automated production line for cavity inside weld seam remelting and grinding

Abstract

The application provides an automatic production line for cavity inner side weld seam remelting and grinding, which comprises a polishing unit and a remelting unit, the remelting unit utilizes a plurality of remelting welding robots to perform laser remelting on the weld seam, and the polishing unit utilizes a plurality of polishing robots to clamp a polishing mechanism to polish the remelted weld seam. A circulating cleaning mechanism on the polishing robot drives a cleaning piece to continuously clean the surface of the abrasive belt during the circulating operation of the conveying belt, and utilizes a driving piece to sequentially drive a plurality of jet pipes to swing, so that the jet pipes spray dynamic cleaning airflow to the surface of the abrasive belt, cooperate with the dust suction part to timely suck and remove the debris, form a continuous cleaning process of "mechanical cleaning-airflow blowing-concentrated dust suction", and is beneficial to reduce the blockage of abrasive grains of the abrasive belt and maintain the stable polishing state of the abrasive belt.

Description

Technical Field

[0001] This invention relates to the field of remelting and grinding of workpiece welds, specifically to an automated production line for remelting and grinding welds on the inner side of a cavity. Background Technology

[0002] After welding, cavity-type workpieces often exhibit issues such as excessive weld reinforcement, uneven weld formation, and insufficient local fusion quality in their internal welds. To improve the weld microstructure and surface finish, a laser remelting process is typically used to remelt and solidify the weld metal, thereby improving weld formation quality and joint performance and providing a better foundation for subsequent surface treatments.

[0003] After laser remelting, to meet the surface quality requirements of enamel, coating, or other subsequent processes, the remelted weld seam is usually ground with a sanding belt. This creates a smoother transition between the weld area and the base material, and removes localized protrusions, oxide layers, and other residues formed during the remelting process, ensuring consistent workpiece surface quality. Therefore, on automated production lines, sanding belts typically need to continuously grind multiple workpieces for extended periods.

[0004] However, since the remelted weld still produces a certain amount of metal shavings and oxide particles, these shavings easily adhere to the surface of the abrasive belt or become embedded between the abrasive grains during continuous grinding, causing abrasive belt blockage. As abrasive blockage worsens, the actual cutting ability of the abrasive belt decreases, easily leading to reduced grinding efficiency, uneven grinding in localized areas, and long-term shaving accumulation exacerbates belt heating and wear, affecting the continuous service life of the abrasive belt. Current technologies typically use fixed nozzles for continuous air blowing or manual cleaning of the abrasive belt during machine shutdowns. However, the coverage of airflow in a fixed direction is limited, making it difficult to meet the cleaning needs of different areas of the abrasive belt. Furthermore, machine shutdowns for cleaning affect the continuous operating efficiency of automated production lines. Therefore, how to continuously and effectively clean the abrasive belt online during automated grinding, reduce abrasive blockage, and maintain stable grinding performance has become a pressing technical problem for those skilled in the art.

[0005] Therefore, an automated production line for remelting and grinding the weld seam inside the cavity is provided to address the above problems. Summary of the Invention

[0006] In order to solve the problem that grinding debris easily accumulates on the surface of the abrasive belt and causes abrasive blockage during the grinding process of remelted welds in the prior art, resulting in a decrease in grinding performance and affecting the continuous operation of automated production lines, the present invention provides an automated production line for remelting and grinding the welds on the inner side of the cavity.

[0007] The present invention solves the above-mentioned technical problems through the following technical solutions: The present invention provides an automated production line for remelting and grinding the weld seam inside a cavity, including a grinding unit and a remelting unit, wherein the grinding unit and the remelting unit respectively include multiple remelting welding robots and grinding robots; The polishing robot includes a polishing robotic arm and a polishing mechanism fixed on the mobile terminal of the polishing robotic arm that polishes with a sanding belt. A circulating cleaning mechanism is provided on the corresponding outer side of the sanding belt. The circulating cleaning mechanism forms a cleaning chamber. Multiple oscillating jet pipes are provided in the cleaning chamber. A drive component is provided on the conveyor belt to drive the jet pipes to oscillate, so that when the conveyor belt moves in a cycle, it drives the multiple jet pipes to rotate in sequence and spray cleaning airflow onto the surface of the sanding belt. A dust suction unit is provided on one side of the cleaning chamber to suck out the waste debris cleaned by the cleaning parts and the spray pipe.

[0008] In this technical solution, the grinding unit and the remelting unit also include several grinding stations and remelting stations that are centrally set up. Several grinding robots and remelting welding robots are respectively configured around the centrally set grinding stations and remelting stations. A handling robot is set up in the middle area of ​​the grinding stations and remelting stations.

[0009] In this technical solution, the grinding mechanism includes a support frame, which is fixed on the moving end of the grinding robot arm, and grinding components are mounted on the support frame; The grinding assembly includes a mounting bracket, which is fixed on a support frame. A second connecting wheel that can rotate is mounted on each end of the mounting bracket, and the sanding belt is wound around the surface of the second connecting wheel and the second connecting wheel. The second connecting wheel is connected to the connecting shaft on the output end of the first motor, and the first motor is fixed on the support frame.

[0010] In this technical solution, the circulating cleaning mechanism also includes a transmission part, which includes two spaced transmission wheels and a conveyor belt wound between the two transmission wheels. Multiple cleaning components constituting the cleaning part are arranged along the length direction on the outer side of the conveyor belt. The multiple cleaning components are distributed at equal intervals along the circulation track of the conveyor belt so that when the conveyor belt rotates, it drives the multiple cleaning components to circulate over the surface of the sand belt and clean the sand belt. Multiple cleaning components are continuously distributed along the length of the conveyor belt and together form a cleaning chamber; One of the drive wheels is connected to the drive unit.

[0011] In this technical solution, the drive unit includes push blocks fixed on the conveyor belt by multiple connecting rods. Each push block can sequentially push the corresponding jet pipe to rotate as it moves with the conveyor belt.

[0012] In this technical solution, multiple jet pipes are evenly spaced along the width of the sand belt, and all jet pipes are fixed on the bottom side wall of the splitter shell. A first external pipe for connecting an external air pump is fixed on the outer wall of the splitter shell, and the middle area of ​​the jet pipe is a corrugated hose. It also includes a guide section that guides the direction and trajectory of the jet pipe's swing, and a spring section that resets the jet pipe after it swings.

[0013] In this technical solution, the guide part includes an arc-shaped guide rail fixed between two jet pipes, and sliding members are slidably connected to both sides of the guide rail. The two sliding members are respectively fixed to the ends of the two corresponding jet pipes.

[0014] In this technical solution, the springback part includes a guide arc rod that is concentrically arranged with the arc-shaped guide rail. A guide sleeve is slidably sleeved on the surface of the guide arc rod, and the guide sleeve is fixed to the corresponding sliding member by a rod. Springs are fitted onto the surfaces of the guide arc rods on both sides of the guide sleeve, and the two ends of the springs are fixed to the corresponding ends of the guide sleeve and the guide arc rods, respectively.

[0015] In this technical solution, both drive wheels are mounted on the moving end of the grinding robot arm via a fixed shaft or fixedly mounted on a mounting component that maintains a constant relative position with the moving end of the grinding robot arm, and the two drive wheels are located on both sides of the width direction of the sanding belt. One of the fixed shafts is connected to the drive unit for transmission.

[0016] In this technical solution, the drive unit includes a second motor, and a first pulley is fixed on the output end of the second motor. The first pulley is connected to the second pulley via a transmission belt, and the second pulley is connected to the transmission unit via a mounting shaft. The second motor is fixed to the moving end of the grinding robot arm or fixedly installed on a mounting component that maintains a constant relative position to the moving end of the grinding robot arm.

[0017] In this technical solution, the cleaning unit also includes at least one open dust collection shell, which is supported on the bottom of the cleaning component that protrudes from one side of the sanding belt; The dust collection shell is fixed on the support frame or fixedly installed on the mounting component that maintains a fixed position relative to the support frame. The bottom of the dust collection shell is provided with a connecting pipe for connecting an external air pump.

[0018] In this technical solution, the dust collection unit includes a manifold housing, which is fixed on the support frame or the top of the diversion housing. A second external pipe for connecting an external air pump is fixed on the surface of the manifold housing. Multiple dust collection pipes are fixed on the top surface of the manifold housing. The ends of the dust collection pipes extend to the inner ring of the conveyor belt, and an open dust collection housing is fixed on the ends of the dust collection pipes.

[0019] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0020] The positive and progressive effects of this invention are as follows: This application incorporates a circulating cleaning mechanism. During the conveyor belt's cyclic operation, the cleaning components continuously clean the surface of the sanding belt. Simultaneously, a drive unit sequentially drives multiple jet pipes to oscillate, causing the airflow from the jet pipes to dynamically sweep the sanding belt surface. In conjunction with the dust collection unit, the waste debris after sweeping and brushing is promptly sucked out, forming a continuous cleaning process of "mechanical cleaning - airflow sweeping - centralized dust collection." This helps reduce the accumulation of abrasive debris on the sanding belt surface, alleviates abrasive grain clogging, maintains the sanding belt in a better sanding condition, ensures consistent sanding quality, and extends the continuous service life of the sanding belt.

[0021] Furthermore, since multiple jet pipes can rotate sequentially under the action of the driving component, the jet direction of the jet airflow changes continuously with the rotation of the jet pipes, thereby expanding the coverage range of the airflow in the width and length directions of the sanding belt. Compared with a fixed nozzle continuously spraying in the same direction, it can improve the cleaning coverage of waste in different areas of the sanding belt surface and reduce abrasive blockage caused by long-term accumulation of waste in local areas. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A top-view structural diagram; Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at point I; Figure 4 This is a schematic diagram of the grinding mechanism after the caking and cleaning section of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the side view structure; Figure 6 This is a schematic diagram of the circulating cleaning mechanism after the caking and cleaning section of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure viewed from below; Figure 8 This is a schematic diagram showing the positional relationship between the flow divider shell and the jet pipe of the present invention; Figure 9 For the present invention Figure 8 A magnified schematic diagram of the structure at point J; Figure 10 For the present invention Figure 6 A top-view structural diagram; Figure 11 For the present invention Figure 10 A three-dimensional structural diagram of section AA; Figure 12 For the present invention Figure 10 A three-dimensional structural diagram of the cross-section at point BB; Figure 13 For the present invention Figure 12 A magnified schematic diagram of the structure at point K; Figure 14 This is a schematic diagram of the overall structure of the grinding mechanism of the present invention; Figure 15 For the present invention Figure 14 A magnified schematic diagram of the structure at point L; Figure 16 For the present invention Figure 14 A schematic diagram of the side view structure; Figure 17 This is a schematic diagram of the overall structure of the circulating cleaning mechanism of the present invention; Figure 18 For the present invention Figure 17 A schematic diagram of the structure viewed from below.

[0023] Explanation of reference numerals in the attached figures 101. Grinding robotic arm; 102. Grinding mechanism; 103. Grinding station; 104. Remelting and welding robot; 105. Remelting station; 106. Handling robot; 107. Circulating cleaning mechanism; 1. Support frame; 2. Grinding assembly; 21. Mounting bracket; 22. First connecting wheel; 23. Second connecting wheel; 24. Sanding belt; 25. Connecting shaft; 26. First motor; 3. Diverter housing; 31. First external pipe; 32. Spray pipe; 321. Corrugated hose; 33. Guide rail; 34. Sliding component; 35. Guide arc rod; 36. Guide sleeve; 37. Connecting frame; 4. Manifold housing; 41. Second external connection pipe; 42. Suction pipe; 43. Suction housing; 5. Drive unit; 51. Second motor; 52. First pulley; 53. Second pulley; 54. Transmission belt; 55. Mounting shaft; 6. Transmission unit; 61. Transmission wheel; 62. Fixed shaft; 63. Conveyor belt; 64. Connecting rod; 65. Push block; 7. Cleaning section; 71. Cleaning components; 72. Dust collection housing; 73. Adjustable crossbar; 74. Connecting pipe; 8. Fixture. Detailed Implementation

[0024] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0025] like Figure 1 and Figure 2 As shown, an automated production line for remelting and grinding the weld seam inside a cavity includes a grinding unit and a remelting unit. The grinding unit and the remelting unit each include multiple remelting welding robots 104 and grinding robots, respectively. The polishing robot includes a polishing robotic arm 101 and a polishing mechanism 102 fixed on the mobile terminal of the polishing robotic arm 101, which polishes by means of a sanding belt 24. A circulating cleaning mechanism 107 is provided on the corresponding outer side of the sanding belt 24. The circulating cleaning mechanism 107 surrounds and forms a cleaning chamber. Multiple oscillating jet pipes 32 are provided in the cleaning chamber. A driving component is provided on the conveyor belt 63 to drive the jet pipes 32 to oscillate, so that when the conveyor belt 63 circulates, it drives the multiple jet pipes 32 to rotate in sequence and spray cleaning airflow onto the surface of the sanding belt 24. A dust suction unit is provided on one side of the cleaning chamber to suck out the waste debris cleaned by the cleaning component 71 and the spray pipe 32.

[0026] Example 1 In this embodiment, as Figure 1 and Figure 2 As shown, the grinding unit and the remelting unit also include several grinding stations 103 and remelting stations 105 that are centrally set up. Several grinding robots and remelting welding robots 104 are respectively arranged around the grinding stations 103 and remelting stations 105. A handling robot 106 is set up in the middle area of ​​the grinding stations 103 and remelting stations 105.

[0027] During operation, the workpieces processed in the previous steps first enter the remelting unit. A transport robot 106 located in the center of the remelting unit picks up the workpieces and sequentially transports them to each remelting station 105 according to a preset process. Once the workpiece reaches its corresponding remelting station 105, a positioning fixture clamps and positions the workpiece. The corresponding remelting welding robot 104 then performs laser remelting on the workpiece's weld seam to improve weld formation quality and joint performance. After processing is completed at each remelting station 105, the transport robot 106 picks up the workpiece again and transfers it to the next remelting station 105 or to the grinding unit.

[0028] After the workpiece enters the grinding unit, it is picked up by a transport robot 106 located in the middle of the grinding unit and sequentially transported to multiple grinding stations 103. After the workpiece is positioned, the corresponding grinding robot drives the grinding mechanism 102 to grind each part of the workpiece to be processed. After all grinding stations 103 have completed processing, the transport robot 106 transports the workpiece to the downstream process or unloading position, completing the entire post-weld processing flow.

[0029] Since multiple remelting stations 105 and multiple grinding stations 103 are respectively arranged around the corresponding handling robot 106, the handling robot 106 can complete the workpiece transfer between each station through a shorter movement path, realize the collaborative operation of one handling robot 106 corresponding to multiple processing stations, thereby reducing the workpiece transfer time, improving the automation connection efficiency of the remelting unit and the grinding unit, and ensuring the continuous and stable operation of the entire production line.

[0030] Example 2 like Figure 4 and Figure 5 As shown, the grinding mechanism 102 includes a support frame 1, which is fixed on the moving end of the grinding robot arm 101, and a grinding component 2 is provided on the support frame 1. The grinding assembly 2 includes a mounting frame 21, which is fixed on the support frame 1. A first connecting wheel 22 and a second connecting wheel 23 that can rotate are respectively mounted at both ends of the mounting frame 21. The sanding belt 24 is wrapped around the surface of the first connecting wheel 22 and the second connecting wheel 23. The first connecting wheel 22 is connected to the connecting shaft 25 on the output end of the first motor 26, and the first motor 26 is fixed on the support frame 1.

[0031] During grinding, the first motor 26 drives the first connecting wheel 22 to rotate via the connecting shaft 25. The first connecting wheel 22 drives the sanding belt 24 to move cyclically along its annular transmission path through the transmission cooperation between the first connecting wheel 22 and the sanding belt 24. During the movement, the sanding belt 24 further drives the second connecting wheel 23 to rotate synchronously, thereby forming a stable cyclic transmission.

[0032] Preferably, the second connecting wheel 23 is located at the end of the support frame 1 away from the first connecting wheel 22, and the diameter of the second connecting wheel 23 is smaller than that of the first connecting wheel 22, so that the sanding belt 24 has a smaller bending radius when passing through the second connecting wheel 23, thereby better adapting to the contour changes of the weld area after remelting, improving the contact fit between the sanding belt 24 and the weld, so as to perform stable grinding on the remelted weld.

[0033] Example 3 like Figure 6 , Figure 7 as well as Figure 15 As shown, the circulating cleaning mechanism 107 also includes a transmission part 6, which includes two spaced transmission wheels 61. A conveyor belt 63 is wound between the two transmission wheels 61. Multiple cleaning components 71 constituting the cleaning part 7 are arranged along the length direction on the outer side of the conveyor belt 63. The multiple cleaning components 71 are distributed at equal intervals along the circulation track of the conveyor belt 63, so that when the conveyor belt 63 rotates, it drives the multiple cleaning components 71 to circulate over the surface of the sanding belt 24 to clean the sanding belt 24. A plurality of cleaning members 71 are continuously distributed along the length direction of the conveyor belt 63 and jointly enclose to form a cleaning chamber; One of the driving wheels 61 is drivingly connected to the driving part 5, and the driving part 5 drives the corresponding driving connection to rotate self - sufficiently.

[0034] Preferably, the circulating cleaning mechanism 107 is fixed on the carrier 1 and is located on one side of the top of the abrasive belt 24 passing through the first connecting wheel 22.

[0035] Preferably, the cleaning member 71 includes a plurality of brushes arranged at intervals along the length direction of the conveyor belt 63.

[0036] The driving member includes a pushing block 65 fixed on the conveyor belt 63 through a plurality of connecting rods 64. Each pushing block 65 can sequentially push the corresponding jet pipe 32 to rotate during the movement along with the conveyor belt 63.

[0037] Furthermore, on the outer wall of one side of the pushing block 65 close to the lever, a transmission curved surface that can overlap with the jet pipe 32 is formed. The transmission curved surface continuously extends along the movement direction of the pushing block 65, so that the jet pipe 32 continuously rotates during the contact with the transmission curved surface.

[0038] Specifically, the transmission curved surface is a guiding curved surface protruding from the outer wall of the pushing block 65, and the normal direction of the transmission curved surface continuously changes along the movement direction of the pushing block 65, so that the rotation angle of the jet pipe 32 gradually increases with the movement of the pushing block 65.

[0039] Specifically, as Figure 12 shown, the cross - section of the conveyor belt 63 is a "convex" - shaped structure. The convex part of the conveyor belt 63 overlaps with the driving wheel 61, and the connecting rod 64 is fixed on one side of the bottom of the convex part of the conveyor belt 63.

[0040] The second motor 51 drives the first pulley 52 to rotate self - sufficiently, thereby driving the second pulley 53 to rotate self - sufficiently through the transmission belt 54, and then driving the driving wheel 61 coaxially installed with the second pulley 53 to rotate self - sufficiently, pushing the conveyor belt ǒ3 on the surface of the driving wheel 61 to move. The moving conveyor belt 63 drives the pushing block 65 and the cleaning member 71 to move synchronously.

[0041] The moving cleaning member 71 sequentially passes through the surface of the abrasive belt 24 in a cycle, removing the grinding waste chips on the surface of the abrasive belt 24. And the pushing block 65 pushes the end of the corresponding jet pipe 32 to rotate.

[0042] As Figure 8 and Figure 9 shown, a plurality of jet pipes 32 are arranged at equal intervals along the width direction of the abrasive belt 24, and the jet pipes 32 are all fixed on the bottom side wall of the shunt housing 3. A first external pipeline 31 for connecting to an external air pump is fixed on the outer wall of the shunt housing 3. The middle area of the jet pipe 32 is a corrugated hose 321; It also includes a guide part that guides the swing direction and trajectory of the jet pipe 32, and a spring-loaded part that resets the jet pipe 32 after it swings. The diversion shell 3 is fixed to the mobile terminal of the grinding robot arm 101 by the fixing bracket 8 or fixedly installed on the mounting component that maintains a constant relative position with the mobile terminal of the grinding robot arm 101.

[0043] Preferably, the diversion shell 3 is fixed to the support frame 1 by the fixing frame 8.

[0044] The air pump fills the inside of the split housing 3 with airflow, which is then ejected through each jet pipe 32.

[0045] The guide section includes an arc-shaped guide rail 33 fixed between two jet pipes 32, and two sliding members 34 are slidably connected to both sides of the guide rail 33. The two sliding members 34 are respectively fixed to the ends of the two corresponding jet pipes 32.

[0046] Specifically, the corrugated hose 321 is the bending area of ​​the jet pipe 32 when it swings. The sliding member 34 is fixed to the outer wall of the corrugated hose 321 on the side away from the diverter housing 3. That is, the corrugated hose 321 divides the jet pipe 32 into two parts, one end is fixed to the diverter housing 3, and the other end sprays out airflow, and the outer wall of the jet pipe 32 spraying out airflow is fixedly connected to the sliding member 34.

[0047] The springback section includes a guide arc rod 35 concentrically arranged with the arc-shaped guide rail 33. A guide sleeve 36 is slidably sleeved on the surface of the guide arc rod 35. The guide sleeve 36 is fixed on the corresponding sliding member 34 by a rod. Springs are fitted onto the surfaces of the guide arc rods 35 on both sides of the guide sleeve 36, and the two ends of the springs are fixed to the corresponding ends of the guide sleeve 36 and the guide arc rods 35, respectively.

[0048] Furthermore, both the guide arc rod 35 and the guide rail 33 are fixed to the jet shell by the connecting bracket 37. When the spring corresponding to the jet pipe 32 does not deform, the jet pipe 32 is set perpendicular to the surface corresponding to the sand belt 24, and the guide sleeve 36 is located at the center of the guide arc rod 35.

[0049] Preferably, the slider 34 is block-shaped or cylindrical.

[0050] When the end of the corresponding jet pipe 32 is pushed and swung, the corresponding sliding member 34 and guide sleeve 36 slide on the guide rail 33 and guide arc rod 35, respectively. At this time, both corresponding springs deform, accumulating the elastic potential energy required for the guide pipe to reset after the pusher block 65 is disengaged from the guide pipe.

[0051] Example 4 like Figure 6 and Figure 11As shown, both drive wheels 61 are mounted on the mobile terminal of the grinding robot arm 101 via a fixed shaft 62 or fixedly mounted on a mounting component that maintains a constant relative position with the mobile terminal of the grinding robot arm 101. The flow divider shell 3 can be the corresponding mounting component, and the two drive wheels 61 are located on both sides of the width direction of the sanding belt 24. One of the fixed shafts 62 is connected to the drive unit 5 for transmission.

[0052] Preferably, both drive wheels 61 are mounted on the outer walls of the two sides of the splitter housing 3 via a fixed shaft 62.

[0053] The drive unit 5 includes a second motor 51, and a first pulley 52 is fixed on the output end of the second motor 51. The first pulley 52 is connected to the second pulley 53 via a transmission belt 54. The second pulley 53 is connected to the transmission unit 6 via a mounting shaft 55. The second motor 51 is fixed to the mobile terminal of the grinding robot arm 101 or fixedly installed on a mounting component that maintains a constant relative position to the mobile terminal of the grinding robot arm 101, wherein the support frame 1 can be the corresponding mounting component.

[0054] Specifically, the second pulley 53 is fixedly connected to the corresponding fixed shaft 62 via the mounting shaft 55. The second motor 51 is fixed on the support frame 1.

[0055] The second motor 51 drives the first pulley 52 to rotate, which in turn drives the second pulley 53 to rotate via the transmission belt 54. The second pulley 53 drives the corresponding transmission wheel 61 to rotate via the mounting shaft 55 and the fixed shaft 62, thereby pushing the conveyor belt 63 to move. This causes the cleaning component 71 to circulate through the surface of the sanding belt 24 in sequence, cleaning the waste on the surface of the sanding belt 24.

[0056] Example 5 like Figures 16-18 As shown, the cleaning section 7 also includes at least one open dust collection shell 72, which is supported on the bottom of the cleaning member 71 protruding from one side of the sanding belt 24, for collecting the waste debris cleaned from the surface of the sanding belt 24. The dust collection shell 72 is fixed on the support frame 1 or fixedly installed on the mounting component that maintains a fixed position relative to the support frame 1. The bottom of the dust collection shell 72 is provided with a connecting pipe 74 for connecting an external air pump, and the connecting pipe 74 is covered with a filter screen.

[0057] Preferably, a pushing bar 73 is fixed to the top of the dust collection shell 72, and the pushing bar 73 passes through the cleaning component 71 above the dust collection shell 72. When the cleaning component 71 passes the pushing bar 73, the waste on its surface is pushed into the dust collection shell 72 by the pushing bar 73. A corresponding air pump creates a negative pressure in the dust collection shell 72, thereby capturing the waste that the pushing bar 73 pushes out of the cleaning component 71.

[0058] Example 6 like Figure 12 As shown, the dust collection unit includes a manifold housing 4, which is fixed on the support frame 1 or the top of the diversion housing 3. A second external pipe 41 for connecting an external air pump is fixed on the surface of the manifold housing 4. A plurality of dust collection pipes 42 are fixed on the top surface of the manifold housing 4. The ends of the dust collection pipes 42 extend to the inner ring of the conveyor belt 63, and an open dust collection shell 43 is fixed on the ends of the dust collection pipes 42.

[0059] The surface of the second external pipe 41 is covered with a filter screen.

[0060] By drawing air with an air pump, a negative pressure is created at the dust collection housing 43, thereby drawing the waste into the manifold housing 4.

[0061] The manifold housing 4 is provided with a cleaning channel, which is covered with a removable cover plate. The waste in the manifold housing 4 is removed through the cleaning channel.

[0062] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. An automated production line for remelting and grinding the inner side weld of a cavity, comprising a grinding unit and a remelting unit, wherein the grinding unit and the remelting unit respectively comprise multiple remelting welding robots (104) and grinding robots; The polishing robot includes a polishing robotic arm (101) and a polishing mechanism (102) fixed to the mobile terminal of the polishing robotic arm (101) for polishing via a sanding belt (24), characterized in that: A circulating cleaning mechanism (107) is provided on the corresponding outer side of the sanding belt (24). The circulating cleaning mechanism (107) forms a cleaning chamber by means of a conveyor belt (63). Multiple oscillating jet pipes (32) are provided in the cleaning chamber. A driving component is provided on the conveyor belt (63) to drive the jet pipes (32) to oscillate, so that when the conveyor belt (63) moves in a cycle, it drives the multiple jet pipes (32) to rotate in sequence and spray cleaning airflow onto the surface of the sanding belt (24). A dust extraction unit is provided on one side of the cleaning chamber.

2. The automated production line for remelting and grinding the inner side weld of a cavity as described in claim 1, characterized in that: The grinding unit and the remelting unit also include several grinding stations (103) and remelting stations (105) set up in a centralized manner. Several grinding robots and remelting welding robots (104) are respectively arranged around the grinding stations (103) and remelting stations (105). A handling robot (106) is set up in the middle area of ​​the grinding stations (103) and remelting stations (105).

3. The automated production line for remelting and grinding the inner side weld of a cavity as described in claim 1, characterized in that: The polishing mechanism (102) includes a support frame (1), which is fixed on the moving end of the polishing robot arm (101), and a polishing component (2) is provided on the support frame (1). The grinding assembly (2) includes a mounting frame (21) which is fixed on the support frame (1). A first connecting wheel (22) and a second connecting wheel (23) that can rotate are respectively mounted on both ends of the mounting frame (21). The sanding belt (24) is wrapped around the surface of the first connecting wheel (22) and the second connecting wheel (23). The first connecting wheel (22) is connected to the connecting shaft (25) on the output end of the first motor (26), and the first motor (26) is fixed on the support frame (1).

4. The automated production line for remelting and grinding the inner side weld of a cavity as described in claim 1, characterized in that: The circulating cleaning mechanism (107) also includes a transmission part (6), which includes two spaced transmission wheels (61), and a conveyor belt (63) is wound between the two transmission wheels (61). Multiple cleaning components (71) constituting the cleaning part (7) are arranged along the length direction on the outer side of the conveyor belt (63). The multiple cleaning components (71) are distributed at equal intervals along the circulation track of the conveyor belt (63) so that when the conveyor belt (63) rotates, it drives the multiple cleaning components (71) to circulate over the surface of the sand belt (24). Multiple cleaning components (71) are continuously distributed along the length of the conveyor belt (63) and together form the cleaning cavity; One of the drive wheels (61) is connected to the drive unit (5) for transmission.

5. The automated production line for remelting and grinding the inner side weld of the cavity as described in claim 4, characterized in that: The drive unit includes push blocks (65) fixed on the conveyor belt (63) by multiple connecting rods (64), each of the push blocks (65) being able to sequentially push the corresponding jet pipe (32) to rotate as it moves with the conveyor belt (63).

6. The automated production line for remelting and grinding the inner side weld of a cavity as described in claim 1, characterized in that: Multiple jet pipes (32) are evenly spaced along the width direction of the sand belt (24), and the jet pipes (32) are all fixed on the bottom side wall of the split shell (3). A first external pipe (31) for connecting an external air pump is fixed on the outer wall of the split shell (3). The middle area of ​​the jet pipe (32) is a corrugated hose (321). It also includes a guide part that guides the swing direction and trajectory of the jet pipe (32) and a spring-loaded part that pushes the jet pipe (32) to swing and reset.

7. The automated production line for remelting and grinding the inner side weld of a cavity as described in claim 4, characterized in that: Both of the aforementioned drive wheels (61) are mounted on the mobile terminal of the grinding robot arm (101) via a fixed shaft (62) or fixedly mounted on a mounting component that maintains a constant relative position with the mobile terminal of the grinding robot arm (101), and the two drive wheels (61) are located on both sides of the width direction of the sanding belt (24); One of the fixed shafts (62) is connected to the drive unit (5) for transmission.

8. The automated production line for remelting and grinding the inner side weld of a cavity as described in claim 7, characterized in that: The drive unit (5) includes a second motor (51), and a first pulley (52) is fixed on the output end of the second motor (51). The first pulley (52) is connected to the second pulley (53) via a transmission belt (54), and the second pulley (53) is connected to the transmission unit (6) via a mounting shaft (55). The second motor (51) is fixed to the mobile terminal of the grinding robot arm (101) or fixedly installed on a mounting component that maintains a constant relative position with the mobile terminal of the grinding robot arm (101).

9. An automated production line for remelting and grinding the inner side weld of a cavity as described in claim 4, characterized in that: The cleaning section (7) also includes at least one open dust collection shell (72), which is supported on the bottom of a cleaning component (71) protruding from one side of the sand belt (24); The dust collection shell (72) is fixed on the support frame (1), and the bottom of the dust collection shell (72) is provided with a connecting pipe (74) for connecting an external air pump.

10. An automated production line for remelting and grinding the inner side weld of a cavity as described in claim 1, characterized in that: The dust collection unit includes a manifold housing (4), which is fixed on the support frame (1) or the top of the diversion housing (3). A second external pipe (41) for connecting an external air pump is fixed on the surface of the manifold housing (4). A plurality of dust collection pipes (42) are fixed on the top surface of the manifold housing (4). The ends of the dust collection pipes (42) extend to the inner ring of the conveyor belt (63), and an open dust collection shell (43) is fixed on the end of the dust collection pipes (42).

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