A grinding device for steel pipe ends

Abstract

This invention relates to a grinding device for steel pipe ends, comprising a base, on the top of which a grinding mechanism, a conveying mechanism, and a drying mechanism are mounted. The invention includes a grinding mechanism and a conveying mechanism. The invention also incorporates a sealing component and a flushing component. Before grinding the steel pipe end, the sealing component seals the end with a sealing airbag, thereby reducing the inflow of cooling waste liquid into the steel pipe during the flushing process and also reducing the entry of waste debris generated during the grinding process into the steel pipe.

Description

Technical Field

[0001] This invention relates to the field of steel pipe processing technology, and in particular to a grinding device for steel pipe ends. Background Technology

[0002] Hydrogen, as an important chemical raw material, is widely used in petrochemicals, organic synthesis, food industry, microelectronics industry, metallurgy industry, and silicate industry. Hydrogen transportation utilizes steel pipes, and the quality of the pipe ends plays a crucial role in the pipe's connection, sealing, and overall performance. Therefore, grinding and processing the pipe ends is an important step in the steel pipe production and processing process.

[0003] Current steel pipe end grinding devices have certain shortcomings during grinding. For example, during the steel pipe grinding process, a cooling structure is used to cool the grinding area. The waste liquid generated during the cooling process will all enter the inside of the steel pipe, increasing the amount of cleaning work later. Summary of the Invention

[0004] To address the problems mentioned in the background section, the present invention provides a grinding device for steel pipe ends.

[0005] The present invention provides a grinding device for steel pipe ends, which adopts the following technical solution:

[0006] A grinding device for steel pipe ends includes a base. A grinding mechanism, a conveying mechanism, and a lifting mechanism are installed on the top of the base. The lifting mechanism drives a drying component to move up and down. The grinding mechanism includes a processing table fixedly installed on the top of the base near one edge. A fixing component is installed on the right side of the processing table. A transmission component that drives the fixing component to rotate is installed on the top of the processing table. The fixing component includes a mounting frame fixedly installed on the right side of the processing table. A corresponding through hole is opened between the side wall of the mounting frame and the processing table. A rotating cylinder is installed inside the through hole. Several L-shaped support plates are fixedly installed on the outer wall of one end of the rotating cylinder. A first electric push rod is fixedly installed on the L-shaped support plate. An arc-shaped clamping block is fixedly connected to one end of the first electric push rod.

[0007] The transmission assembly includes a rotary motor mounted on the top of the processing table. The output shaft of the rotary motor passes through a shaft hole opened on a support block installed at the top edge of the processing table and is connected to a first sprocket. A chain is sleeved on the first sprocket. The other end of the chain passes through a through slot opened on the top of the mounting frame and is sleeved with a second sprocket fixedly installed on the outer wall of the rotating drum.

[0008] Preferably, a sealing assembly is installed inside the processing table. The sealing assembly includes a movable support installed inside the processing table, which slides on a guide rail installed on the bottom surface of the processing table. A first electric telescopic rod is fixedly installed on the left side wall of the processing table. The telescopic end of the first electric telescopic rod passes into the processing table and is connected to the bottom of the movable support. A connecting pipe is installed in a through hole opened on the top side wall of the movable support. One end of the connecting pipe is connected to a sealing airbag through a rotary joint. The other end of the connecting pipe is connected to an air inlet joint installed on the movable support. An air supply hose is connected to the air inlet joint. The other end of the air supply hose is connected to an air pump installed on the left side wall of the processing table.

[0009] Preferably, a grinding assembly is installed inside the processing table at the top position of the movable support. The grinding assembly includes a lifting seat installed on the top of the movable support. The lifting seat slides along a guide rail provided on the inner wall of the processing table. A second electric push rod is installed at the top of one end of the lifting seat. One end of the second electric push rod is connected to a top connecting block of an adjusting seat that is slidably installed in a through groove at the top of one end of the lifting seat. A grinding motor is fixedly installed at the bottom of the adjusting seat. A grinding disc is fixedly installed on the output shaft of the grinding motor. A second electric telescopic rod is also fixedly installed on the top of the processing table. The telescopic end of the second electric telescopic rod is connected to the top of the lifting seat.

[0010] Preferably, the processing table is also equipped with a cleaning assembly, which includes a high-pressure flushing pump mounted on the top of a fixed plate on the inner wall of the processing table. The bottom of the high-pressure flushing pump is connected to a flushing head, and the top of the high-pressure flushing pump is connected to a water supply pipe. The other end of the water supply pipe is connected to a cleaning liquid tank fixedly installed on the top of the processing table.

[0011] Preferably, the conveying mechanism includes a first conveying component, a second conveying component, and a third conveying component mounted on the top of the base. The first conveying component, the second conveying component, and the third conveying component are equipped with drive components that drive the conveying rollers to rotate. The first conveying component includes a first conveying frame mounted on the top of the base. The second conveying component includes a second conveying frame mounted near the right edge of the processing table. The third conveying component includes a third conveying frame mounted on the top of the base near the edge of the first conveying frame. Conveying rollers are equidistantly installed inside the first conveying frame, the second conveying frame, and the third conveying frame.

[0012] Preferably, a steel pipe body is placed on the top of the second conveyor frame, and a lifting structure is installed at the bottom of the second conveyor frame. The lifting structure includes a U-shaped fixing frame installed at the bottom of the second conveyor frame. An electric cylinder is fixedly installed at the bottom of the U-shaped fixing frame. An installation frame is fixedly connected to the telescopic end of the electric cylinder. Several sets of symmetrical support rods are installed on the top of the installation frame. One end of the support rod passes through a through hole opened on the second conveyor frame and is connected to a pulley block. The pulley block is located between two adjacent conveyor rollers.

[0013] Preferably, a drive shaft is installed at the bottom of the first conveyor frame. One end of the drive shaft passes through a shaft hole opened on the movable frame at the bottom of the first conveyor frame and is adapted to a bearing seat installed on the U-shaped support frame at the bottom of the movable frame. A hydraulic cylinder is installed at the bottom of the U-shaped support frame. Symmetrical movable blocks are installed on the side wall of the movable frame. The movable blocks slide on the base and on fixed rods fixedly installed on both sides of the first conveyor frame. Limiting rings are fixedly installed on the fixed rods. A rotating structure that drives the first conveyor frame to rotate is also installed on the U-shaped support frame. The rotating structure includes a first servo motor fixedly installed on the L-shaped mounting base at the bottom of the U-shaped support frame. A first gear is fixedly installed on the output shaft of the first servo motor. The first gear meshes with a second gear fixedly installed on the drive shaft.

[0014] Preferably, the lifting mechanism includes a support seat mounted on the top of the base. The side wall of the support seat has an opening. Symmetrical slide rods are fixedly connected to the top and bottom of the opening. A movable seat is slidably mounted on the slide rods. A horizontal plate is mounted on the side wall of the support seat at the bottom of the opening. A second servo motor is fixedly mounted on the bottom of the horizontal plate. The output end of the second servo motor is connected to a lead screw. The other end of the lead screw is adapted to a bearing seat mounted on the bottom surface of one end of the support seat. A lead screw sleeve is adapted to be mounted on the lead screw. The other end of the lead screw sleeve is fixedly connected to the side wall of the movable seat.

[0015] Preferably, the drying assembly includes a heating cover mounted on the front side of the movable seat, the outer wall of the heating cover is fitted with symmetrical L-shaped connecting plates, the other end of the L-shaped connecting plates is connected to the side wall of the movable seat, a power supply is fixedly mounted on the top of the support base, one end of the power supply is connected to a connecting wire, and the other end of the connecting wire is connected to the heating cover.

[0016] In summary, the present invention has the following beneficial technical effects:

[0017] 1. The present invention provides a sealing component and a flushing component. Before grinding the end of the steel pipe, the end of the steel pipe is sealed by the sealing airbag in the sealing component. This reduces the flow of cooling waste liquid into the inside of the steel pipe during the flushing process, and also reduces the entry of waste debris generated during the grinding process into the inside of the steel pipe.

[0018] 2. This invention includes a grinding mechanism and a conveying mechanism. By cooperating with the fixed component in the grinding mechanism and the lifting structure in the second conveying component of the conveying mechanism, the steel pipe body can be automatically centered and stably clamped. Through the transmission component in the grinding mechanism, the rotating motor in the transmission component works, and through the transmission cooperation of the first sprocket, chain and second sprocket, the fixed component is driven to rotate, thereby driving the steel pipe body to rotate synchronously. This, together with the grinding head, completes circumferential uniform grinding, significantly improving the surface finish and processing accuracy. At the same time, through the cooperation of the grinding mechanism, conveying mechanism and lifting mechanism, an integrated production line operation of conveying-grinding-drying is formed, which greatly shortens the processing time of a single steel pipe.

[0019] 3. The present invention provides a first conveying component in the conveying mechanism. The first conveying component is provided with a rotating structure. The hydraulic cylinder in the first conveying component drives the movable frame to slide horizontally upward, thereby adjusting the height of the first conveying frame. At the same time, combined with the first servo motor in the rotating component driving the first gear to rotate, through the meshing transmission with the second gear, the transmission shaft rotates and drives the first conveying frame to rotate 180°, thereby realizing the flipping of the steel pipe body, which facilitates the grinding of the other end.

[0020] 4. The present invention is equipped with a lifting mechanism and a drying component. The second servo motor in the lifting mechanism drives the lead screw to rotate, which drives the lead sleeve seat to move precisely along the axial direction, thereby driving the moving seat and the drying component to lift and lower synchronously, so as to realize the height adjustment of the steel pipe port with different diameters. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a grinding device for steel pipe ends in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the left and right fixing components of the processing table in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the side structure of the processing table in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the sealing component structure in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the second conveying component in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the front structure of the second conveying component in an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the first conveying component in an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the position and structure of the drying component in an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the heating cover in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 2. Processing table; 3. Mounting frame; 4. Rotary drum; 5. L-shaped support plate; 6. First electric push rod; 7. Arc-shaped clamping block; 8. Rotating motor; 9. First sprocket; 10. Chain; 11. Second sprocket; 12. Movable support; 13. First electric telescopic rod; 14. Connecting pipe; 15. Sealing airbag; 16. Air supply hose; 17. Air pump; 18. Grinding motor; 19. Grinding disc; 20. Lifting seat; 21. Second electric push rod; 22. Second electric telescopic rod; 23. Flushing head; 24. Cleaning fluid tank; 25. First... 26. Conveyor frame; 27. Second conveyor frame; 28. Third conveyor frame; 29. ​​U-shaped fixed frame; 30. Electric cylinder; 31. Mounting frame; 32. Support rod; 33. Pulley block; 34. Drive shaft; 35. Movable frame; 36. Movable block; 37. Fixed rod; 38. First servo motor; 39. First gear; 40. Second gear; 41. U-shaped support frame; 42. Support seat; 43. L-shaped connecting plate; 44. Heating cover; 45. Power supply; 46. Hydraulic cylinder; 47. Slide rod; 48. Moving seat; 49. Second servo motor; 50. Lead screw; 61. Lead sleeve seat. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-9 The present invention will be described in further detail below.

[0032] This invention discloses a grinding device for steel pipe ends, comprising a base 1, a grinding mechanism, a conveying mechanism, and a lifting mechanism mounted on the top of the base 1. The lifting mechanism drives a drying component to move up and down. The grinding mechanism includes a processing table 2 fixedly mounted on the top of the base 1 near one edge. A fixing component is mounted on the right side of the processing table 2, and a transmission component that drives the fixing component to rotate is mounted on the top of the processing table 2. The fixing component includes a mounting frame 3 fixedly mounted on the right side of the processing table 2. A corresponding through hole is opened between the side wall of the mounting frame 3 and the processing table 2. A rotating cylinder 4 is installed inside the through hole. Several L-shaped support plates 5 are fixedly mounted on the outer wall of one end of the rotating cylinder 4. A first electric push rod 6 is fixedly mounted on the L-shaped support plate 5, and one end of the first electric push rod 6 is fixedly connected to an arc-shaped clamping block 7. The transmission component includes a rotating motor 8 mounted on the top of the processing table 2. The output shaft of the rotating motor 8 passes through a shaft hole opened on the support block mounted at the top edge of the processing table 2 and is connected to a first sprocket 9. A chain 10 is sleeved on the first sprocket 9, and the other end of the chain 10 passes through the mounting frame 3. The slot at the top of frame 3 is fitted with the second sprocket 11 fixedly installed on the outer wall of the rotating drum 4. More specifically, when one end of the steel pipe is inserted into the rotating drum 4, the first electric push rod 6 on the L-shaped support plate 5 extends synchronously, pushing the arc-shaped clamping block 7 to retract inward, tightly fitting the outer wall of the steel pipe to complete adaptive clamping; at this time, the rotating motor 8 starts, and through the transmission of the first sprocket 9, chain 10 and second sprocket 11, drives the rotating drum 4 and the clamped steel pipe to rotate at a uniform speed, providing a stable speed basis for subsequent end grinding.

[0033] refer to Figure 3 and Figure 4 The processing table 2 is equipped with a sealing assembly, which includes a movable support 12 installed inside the processing table 2. The movable support 12 slides on a guide rail installed on the bottom surface of the processing table 2. A first electric telescopic rod 13 is fixedly installed on the left side wall of the processing table 2. The telescopic end of the first electric telescopic rod 13 passes into the processing table 2 and is connected to the bottom of the movable support 12. A connecting pipe 14 is installed in a through hole opened on the top side wall of the movable support 12. One end of the connecting pipe 14 is connected to a sealing airbag 15 through a rotary joint. The sealing airbag 15 is located inside the steel pipe end. The other end of 4 is connected to the air inlet connector installed on the movable support 12. The air inlet connector is connected to the air supply hose 16. The other end of the air supply hose 16 is connected to the air pump 17 installed on the left side wall of the processing table 2. More specifically, before grinding the steel pipe end, the first electric telescopic rod 13 pushes the movable support 12 to the right along the guide rail, so that the sealing airbag 15 extends into the inner cavity of the steel pipe end; the air pump 17 then supplies air, which is inflated into the sealing airbag 15 through the air supply hose 16, the air inlet connector and the connecting pipe 14 to seal the inner cavity of the end and prevent grinding debris and coolant from splashing into the inside of the steel pipe.

[0034] refer to Figure 3A grinding assembly is installed inside the processing table 2 at the top of the movable support 12. The grinding assembly includes a lifting seat 20 installed on the top of the movable support 12. The lifting seat 20 slides along a guide rail provided on the inner wall of the processing table 2. A second electric push rod 21 is installed on the top of one end of the lifting seat 20. One end of the second electric push rod 21 is connected to a top connecting block of an adjusting seat that is slidably installed in a through groove at the top of one end of the lifting seat 20. A grinding motor 18 is fixedly installed at the bottom of the adjusting seat. A grinding disc 19 is fixedly installed on the output shaft of the grinding motor 18. A second electric telescopic rod 22 is also fixedly installed on the top of the processing table 2. The telescopic end of the second electric telescopic rod 22 is connected to the top of the lifting seat 20. A cleaning... The cleaning assembly includes a high-pressure flushing pump mounted on top of a fixed plate on the inner wall of the processing table 2. A flushing head 23 is connected to the bottom of the high-pressure flushing pump, and a water pipe is connected to the top of the pump. The other end of the water pipe is connected to a cleaning fluid tank 24 fixedly mounted on the top of the processing table 2. More specifically, before grinding the steel pipe end, the second electric telescopic rod 22 drives the lifting seat 20 downwards along the guide rail, causing the grinding motor 18 to drive the grinding disc 19 close to the outer edge of the steel pipe end. Subsequently, the second electric push rod 21 finely adjusts the position of the adjusting seat to ensure that the grinding disc 19 fits against the end cross-section. After grinding starts, the high-pressure flushing pump works synchronously, and the flushing head 23 sprays cleaning fluid onto the grinding position, thereby removing debris and cooling it in real time.

[0035] refer to Figure 1 , Figure 5 and Figure 6The conveying mechanism includes a first conveying assembly, a second conveying assembly, and a third conveying assembly mounted on the top of the base 1. Drive components for rotating conveying rollers are mounted on the first, second, and third conveying assemblies. The first conveying assembly includes a first conveying frame 25 mounted on the top of the base 1. The second conveying assembly includes a second conveying frame 26 mounted near the right edge of the processing table 2. The third conveying assembly includes a third conveying frame 27 mounted on the top of the base 1 near the edge of the first conveying frame 25. Conveying rollers are equidistantly installed inside the first, second, and third conveying frames 25, 26, and 27. A steel pipe body is placed on the top of the second conveying frame 26, and a lifting structure is installed at the bottom of the second conveying frame 26. The lifting structure includes a U-shaped fixing frame 28 mounted at the bottom of the second conveying frame 26. An electric cylinder 29 is fixedly installed on the part. The telescopic end of the electric cylinder 29 is fixedly connected to a mounting frame 30. Several sets of symmetrical support rods 31 are installed on the top of the mounting frame 30. One end of the support rod 31 passes through a through hole opened on the second conveyor frame 26 and is connected to a pulley block 32. The pulley block 32 is located between two adjacent conveyor rollers. More specifically, when the steel pipe is conveyed to the second conveyor frame 26, the second conveyor frame 26 drives the main body of the steel pipe to move, so that one end of it moves through the rotating drum 4 and enters the grinding area. Then, the electric cylinder 29 drives the mounting frame 30 to move upward, driving the support rods 31 and the pulley block 32 to rise synchronously, so that the pulley block 32 extends out from the gap between the conveyor rollers and lifts the main body of the steel pipe, so that it moves to the center position of the rotating drum 4, ensuring that the axis of the steel pipe is completely aligned with the axis of the rotating drum 4. Combined with the fixing components, it provides a stable positioning reference for subsequent precise grinding.

[0036] refer to Figure 7A drive shaft 33 is installed at the bottom of the first conveyor frame 25. One end of the drive shaft 33 passes through a shaft hole opened on the movable frame 34 at the bottom of the first conveyor frame 25 and is adapted to a bearing seat installed on the U-shaped support frame 40 at the bottom of the movable frame 34. A hydraulic cylinder 45 is installed at the bottom of the U-shaped support frame 40. Symmetrical movable blocks 35 are installed on the side walls of the movable frame 34. The movable blocks 35 slide on the base 1 and are fixed on the fixed rods 36 fixedly installed on both sides of the first conveyor frame 25. Limit rings are fixedly installed on the fixed rods 36. A rotating structure that drives the first conveyor frame 25 to rotate is also installed on the U-shaped support frame 40. The rotating structure includes a first hydraulic cylinder 45 fixedly installed on the L-shaped mounting base at the bottom of the U-shaped support frame 40. A servo motor 37 has a first gear 38 fixedly mounted on its output shaft. The first gear 38 meshes with a second gear 39 fixedly mounted on the transmission shaft 33. More specifically, the hydraulic cylinder 45 pushes the U-shaped support frame 40, causing the movable frame 34 to slide horizontally upward along the fixed rod 36 via the movable blocks 35 on both sides, driving the transmission shaft 33 to move synchronously, thereby adjusting the height of the first conveyor frame 25. At the same time, the first servo motor 37 drives the first gear 38 to rotate, and through the meshing transmission with the second gear 39, the transmission shaft 33 rotates, causing the first conveyor frame 25 to rotate 180°, realizing the flipping of the steel pipe body, thus facilitating the grinding of the other end.

[0037] refer to Figure 1 , Figure 8 and Figure 9 The lifting mechanism includes a support base 41 mounted on the top of the base 1. An opening is provided on the side wall of the support base 41. Symmetrical slide rods 46 are fixedly connected to the top and bottom of the opening. A movable seat 47 is slidably mounted on the slide rods 46. A horizontal plate is mounted on the side wall of the support base 41 at the bottom of the opening. A second servo motor 48 is fixedly mounted on the bottom of the horizontal plate. The output end of the second servo motor 48 is connected to a lead screw 49. The other end of the lead screw 49 is adapted to a bearing seat mounted on the bottom surface of one end of the support base 41. A threaded sleeve seat 50 is adapted to the lead screw 49. The other end of the threaded sleeve seat 50 is fixedly connected to the side wall of the movable seat 47. The drying assembly includes a component mounted on the front side of the movable seat 47. The heating cover 43 is equipped with symmetrical L-shaped connecting plates 42 on its outer wall. The other end of the L-shaped connecting plates 42 is connected to the side wall of the movable seat 47. A power supply 44 is fixedly installed on the top of the support seat 41. One end of the power supply 44 is connected to a connecting wire, and the other end of the connecting wire is connected to the heating cover 43. More specifically, the second servo motor 48 drives the lead screw 49 to rotate, which drives the lead sleeve seat 50 to move along the axial direction of the lead screw 49, thereby pushing the movable seat 47 to rise and fall smoothly along the slide rod 46, so that the heating cover 43 is aligned with the area of ​​the steel pipe to be dried. Thus, the power supply 44 continuously supplies power, enabling the heating cover 43 to achieve efficient and controllable local drying.

[0038] The implementation principle of a grinding device for steel pipe ends according to an embodiment of the present invention is as follows: In use, the main body of the steel pipe is placed on the first conveyor frame 25 and conveyed to the second conveyor frame 26 through the first conveyor frame 25. The second conveyor frame 26 sends the steel pipe into the inner cavity of the rotating drum 4. Then, the electric cylinder 29 drives the mounting frame 30 to move upward, driving the support rod 31 and the pulley block 32 to lift up synchronously, so that the pulley block 32 extends out from the gap of the conveying rollers and lifts the main body of the steel pipe, moving it to the center position of the rotating drum 4, ensuring that the axis of the steel pipe is completely aligned with the axis of the rotating drum 4. Then, the first electric push rod 6 on the L-shaped support plate 5 extends synchronously, pushing the arc-shaped clamping block 7 to retract inward, closely fitting the outer wall of the steel pipe to complete adaptive clamping. At this time, the first electric telescopic rod 13 pushes the moving support 12. Moving to the right along the guide rail, the sealing airbag 15 extends into the inner cavity of the steel pipe port. The air pump 17 then supplies air, inflating the sealing airbag 15 through the air delivery hose 16, air inlet connector, and connecting pipe 14 to seal the inner cavity of the port, preventing grinding debris and coolant from splashing into the steel pipe. Subsequently, the second electric telescopic rod 22 drives the lifting seat 20 downwards along the guide rail, causing the grinding motor 18 to drive the grinding disc 19 close to the outer edge of the steel pipe port. The second electric push rod 21 fine-tunes the position of the adjusting seat to ensure that the grinding disc 19 fits snugly against the port cross-section. After grinding starts, the rotating motor 8 starts, driving the rotating drum 4 and the clamped steel pipe to rotate at a uniform speed through the first sprocket 9, chain 10, and second sprocket 11. Simultaneously, the high-pressure flushing pump operates synchronously, and the flushing head 23 sprays cleaning fluid onto the grinding position, thereby... Debris is removed and the temperature is lowered in real time to ensure a smooth, burr-free polished surface. After single-end polishing is completed, the first electric telescopic rod 13 retracts, the sealing airbag 15 deflates and disengages, the second electric telescopic rod 22 resets, the lifting seat 20 moves upward, causing the polishing disc 19 to disengage from the steel pipe end, the first electric push rod 6 retracts to release the clamp, the electric cylinder 29 drives the support rod 31 to descend, the pulley block 32 retracts the gap between the conveying rollers, and the steel pipe is moved out of the rotating drum 4 via the second conveyor frame 26, and then moved to the third conveyor frame 27 via the first conveyor frame 25. At this time, the second servo motor 48 drives the lead screw 49 to rotate, causing the lead sleeve seat 50 to move axially along the lead screw 49, thereby pushing the moving seat 47 to rise and fall smoothly along the slide rod 46, so that the heating cover 43 is aligned with the area of ​​the steel pipe to be dried, and the steel pipe is then conveyed by the third conveyor frame 27. One end is fed into the heating cover 43 to complete the end drying. The dried steel pipe is then conveyed by the third conveyor frame 27 to the first conveyor frame 25. At this time, the hydraulic cylinder 45 pushes the U-shaped support frame 40, causing the movable frame 34 to slide horizontally upward along the fixed rod 36 through the movable blocks 35 on both sides, driving the transmission shaft 33 to move synchronously, thereby adjusting the height of the first conveyor frame 25. At the same time, the first servo motor 37 drives the first gear 38 to rotate. Through the meshing transmission with the second gear 39, the transmission shaft 33 rotates, causing the first conveyor frame 25 to rotate 180°, realizing the flipping of the steel pipe body. At this time, through the coordinated cooperation of the first conveyor frame 25 and the second conveyor frame 26, the flipped steel pipe is sent back into the inner cavity of the rotating drum 4 to complete the precise positioning and clamping of the other end.The processes of sealing, grinding, rinsing, and drying are repeated sequentially, requiring no manual intervention throughout, ensuring consistent processing precision and meeting surface quality standards at both ends.

[0039] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A grinding device for steel pipe ends, comprising a base (1), characterized in that: The base (1) is equipped with a grinding mechanism, a conveying mechanism and a lifting mechanism. The lifting mechanism drives the drying component to move up and down. The grinding mechanism includes a processing table (2) fixedly installed on the top of the base (1) near one edge. A fixing component is installed on the right side of the processing table (2). A transmission component that drives the fixing component to rotate is installed on the top of the processing table (2). The fixing component includes a mounting frame (3) fixedly installed on the right side of the processing table (2). A corresponding through hole is opened between the side wall of the mounting frame (3) and the processing table (2). A rotating cylinder (4) is installed inside the through hole. Several L-shaped support plates (5) are fixedly installed on the outer wall of one end of the rotating cylinder (4). A first electric push rod (6) is fixedly installed on the L-shaped support plate (5). An arc-shaped clamping block (7) is fixedly connected to one end of the first electric push rod (6). The transmission assembly includes a rotary motor (8) mounted on the top of the processing table (2). The output shaft of the rotary motor (8) passes through a shaft hole opened on a support block installed at the top edge of the processing table (2) and is connected to a first sprocket (9). A chain (10) is sleeved on the first sprocket (9). The other end of the chain (10) passes through a through slot opened on the top of the mounting frame (3) and is sleeved with a second sprocket (11) fixedly installed on the outer wall of the rotating drum (4). The processing table (2) is equipped with a sealing assembly, which includes a movable support (12) installed inside the processing table (2). The movable support (12) slides on a guide rail installed on the bottom surface of the processing table (2). A first electric telescopic rod (13) is fixedly installed on the left side wall of the processing table (2). The telescopic end of the first electric telescopic rod (13) passes into the processing table (2) and is connected to the bottom of the movable support (12). A connecting pipe (14) is installed in the through hole opened on the top side wall of the movable support (12). One end of the connecting pipe (14) is connected to a sealing airbag (15) through a rotary joint. The sealing airbag (15) is located inside the steel pipe port. The other end of the connecting pipe (14) is connected to an air inlet joint installed on the movable support (12). An air supply hose (16) is connected to the air inlet joint. The other end of the air supply hose (16) is connected to an air pump (17) installed on the left side wall of the processing table (2).

2. The grinding device for steel pipe ends according to claim 1, characterized in that: A grinding assembly is installed inside the processing table (2) at the top of the movable support (12). The grinding assembly includes a lifting seat (20) installed on the top of the movable support (12). The lifting seat (20) slides along the guide rail provided on the inner wall of the processing table (2). A second electric push rod (21) is installed on the top of one end of the lifting seat (20). One end of the second electric push rod (21) is connected to the top connecting block of the adjusting seat that is slidably installed in the through groove at the top of one end of the lifting seat (20). A grinding motor (18) is fixedly installed at the bottom of the adjusting seat. A grinding disc (19) is fixedly installed on the output shaft of the grinding motor (18). A second electric telescopic rod (22) is also fixedly installed on the top of the processing table (2). The telescopic end of the second electric telescopic rod (22) is connected to the top of the lifting seat (20).

3. The grinding device for steel pipe ends according to claim 1, characterized in that: The processing table (2) is also equipped with a cleaning assembly. The cleaning assembly includes a high-pressure flushing pump installed on the top of a fixed plate set on the inner wall of the processing table (2). The bottom of the high-pressure flushing pump is connected to a flushing head (23), and the top of the high-pressure flushing pump is connected to a water supply pipe. The other end of the water supply pipe is connected to a cleaning liquid tank (24) fixedly installed on the top of the processing table (2).

4. The grinding device for steel pipe ends according to claim 1, characterized in that: The conveying mechanism includes a first conveying assembly, a second conveying assembly, and a third conveying assembly mounted on the top of the base (1). The first conveying assembly includes a first conveying frame (25) mounted on the top of the base (1). The second conveying assembly includes a second conveying frame (26) mounted near the right edge of the processing table (2). The third conveying assembly includes a third conveying frame (27) mounted on the top of the base (1) near the edge of the first conveying frame (25). Conveying rollers are equidistantly mounted inside the first conveying frame (25), the second conveying frame (26), and the third conveying frame (27).

5. A grinding device for steel pipe ends according to claim 4, characterized in that: The top of the second conveyor frame (26) is provided with a steel pipe body, and the bottom of the second conveyor frame (26) is also provided with a lifting structure. The lifting structure includes a U-shaped fixing frame (28) installed at the bottom of the second conveyor frame (26). An electric cylinder (29) is fixedly installed at the bottom of the U-shaped fixing frame (28). The telescopic end of the electric cylinder (29) is fixedly connected to an installation frame (30). Several sets of symmetrical support rods (31) are installed on the top of the installation frame (30). One end of the support rod (31) passes through the through hole opened on the second conveyor frame (26) and is connected to a pulley group (32). The pulley group (32) is located between two adjacent conveyor rollers.

6. A grinding device for steel pipe ends according to claim 4, characterized in that: A drive shaft (33) is installed at the bottom of the first conveyor frame (25). One end of the drive shaft (33) passes through a shaft hole opened on the movable frame (34) at the bottom of the first conveyor frame (25) and is adapted to the bearing seat installed on the U-shaped support frame (40) at the bottom of the movable frame (34). A hydraulic cylinder (45) is installed at the bottom of the U-shaped support frame (40). Symmetrical movable blocks (35) are installed on the side wall of the movable frame (34). The movable blocks (35) slide on the base (1) and are located on both sides of the first conveyor frame (25). On the fixed rod (36) fixedly installed on the side, a limit ring is fixedly installed on the fixed rod (36). The U-shaped support frame (40) is also equipped with a rotating structure that drives the first conveyor frame (25) to rotate. The rotating structure includes a first servo motor (37) fixedly installed on the L-shaped mounting base at the bottom of the U-shaped support frame (40). A first gear (38) is fixedly installed on the output shaft of the first servo motor (37). The first gear (38) meshes with a second gear (39) fixedly installed on the transmission shaft (33).

7. A grinding device for steel pipe ends according to claim 1, characterized in that: The lifting mechanism includes a support base (41) installed on the top of the base (1). The side wall of the support base (41) has an opening. Symmetrical slide rods (46) are fixedly connected to the top and bottom of the opening. A movable seat (47) is slidably installed on the slide rods (46). A horizontal plate is installed on the side wall of the support base (41) at the bottom of the opening. A second servo motor (48) is fixedly installed at the bottom of the horizontal plate. The output end of the second servo motor (48) is connected to a lead screw (49). The other end of the lead screw (49) is adapted to a bearing seat installed on the bottom surface of one end of the support base (41). A threaded sleeve seat (50) is adapted to be installed on the lead screw (49). The other end of the threaded sleeve seat (50) is fixedly connected to the side wall of the movable seat (47).

8. A grinding device for steel pipe ends according to claim 7, characterized in that: The drying assembly includes a heating cover (43) installed on the front side of the movable seat (47). A symmetrical L-shaped connecting plate (42) is installed on the outer wall of the heating cover (43). The other end of the L-shaped connecting plate (42) is connected to the side wall of the movable seat (47). A power supply (44) is fixedly installed on the top of the support seat (41). One end of the power supply (44) is connected to a connecting line, and the other end of the connecting line is connected to the heating cover (43).

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