A surface machining system for tubular workpieces

Abstract

This invention discloses a surface processing system for tubular workpieces, belonging to the field of grinding equipment. It includes a processing table with a support mechanism and a grinding mechanism at its upper end. The support mechanism includes a roller frame with rollers spaced apart along the width of the processing table at its upper end. The grinding mechanism includes a sliding seat that moves along the length of the processing table. A column is mounted on the upper end of the sliding seat, and a vertically movable base mounting plate is mounted on the column. A base is mounted on the upper end of the base mounting plate, and a motor mounting bracket is rotatably mounted on the base. The angle of the motor mounting bracket is fixed by a locking device. A grinding drive motor is mounted on the motor mounting bracket, and a grinding mounting plate is mounted on the motor mounting bracket. A grinding unit driven by the grinding drive motor is mounted on the grinding mounting plate. The purpose of this invention is to provide a surface processing system for tubular workpieces that improves processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment, specifically to a surface processing system for tubular workpieces. Background Technology

[0002] Water storage tanks, pressure tanks, and other similar components typically employ a tubular structure, meaning they are hollow cylinders in the center. These cylinders are usually formed by bending a flat sheet of material into the shape of a pipe and then welding it along the pipe's axial direction to fix its shape. Side plates (or end caps, etc.) are welded to both ends of the cylinder to seal the tank.

[0003] This structural design and manufacturing method result in two types of welds on the outer surface of the workpiece: an axial weld located at the central cylinder and a circumferential weld at the connection between the side plates and the central cylinder. To improve the surface quality of the workpiece, these welds need to be ground.

[0004] Workpieces with this structure often have axial welds at the central cylinder and circumferential welds at the connection between the side plates and the central section on their outer surface. To improve surface quality, the welds need to be ground.

[0005] However, the existence of two different weld shapes (directions) necessitates repositioning or re-clamping the workpiece during grinding to accommodate the grinding requirements of different welds. This undoubtedly reduces processing efficiency. Summary of the Invention

[0006] The purpose of this invention is to address the above problems by providing a surface processing system for tubular workpieces that can improve processing efficiency.

[0007] To achieve the above objectives, the present invention provides a surface processing system for tubular workpieces, comprising a processing table. A support mechanism and a grinding mechanism are spaced apart along the width direction of the processing table at its upper end. The support mechanism includes a roller frame spaced apart along the length direction of the processing table, with rollers spaced apart along the width direction of the processing table at the upper end of the roller frame. The axes of the rollers are arranged along the length direction of the processing table, and at least one roller is connected to a roller drive motor. The grinding mechanism includes a sliding seat that moves along the length direction of the processing table. A column is provided at the upper end of the sliding seat, and a vertically movable base mounting plate is provided on the column. A base is provided at the upper end of the base mounting plate, and a motor mounting frame is rotatably mounted on the base. The rotation axis of the motor mounting frame is in the same direction as the width direction of the processing table, and the angle of the motor mounting frame is fixed by a locking device. A grinding drive motor is provided on the motor mounting frame, and a grinding mounting plate is provided on the motor mounting frame. A grinding unit driven by the grinding drive motor is provided on the grinding mounting plate. The support mechanism holds the workpiece and drives it to rotate, while the grinding mechanism moves along the workpiece's axial direction. In this way, the support mechanism and the grinding mechanism work together to grind welds of two different shapes.

[0008] Furthermore, the base slides along the width of the processing table under the drive of the transverse drive mechanism to accommodate workpieces of different diameters.

[0009] Furthermore, the grinding unit includes grinding drive wheels and grinding driven wheels spaced apart along the width of the processing table. The grinding drive wheels are connected to a grinding drive motor. The sanding belt winds around the grinding drive wheels and grinding driven wheels. The sanding belt is a conventional abrasive tool, which facilitates the procurement of parts.

[0010] Furthermore, limit wheels are provided on both sides of the sanding belt working area to prevent the sanding belt from falling off the grinding wheel. The outer side of the limit wheels is covered with a buffer layer, which can provide buffering when the grinding unit moves towards the workpiece to protect the motor and other components.

[0011] Furthermore, a pusher is provided on the grinding mounting plate, and a grip is provided on the pusher to facilitate manual adjustment by the staff.

[0012] Furthermore, the working side of the grinding unit is equipped with a dust suction pipe, which is connected to a dust collection device to collect the dust generated during the grinding process, thereby improving the working environment and protecting the health of workers.

[0013] Furthermore, the spacing between the roller frames is adjusted along the length of the processing table to accommodate workpieces of different lengths.

[0014] Furthermore, one side of the roller frame is fixed, while the other side is movable to accommodate workpieces of different lengths. The fixed roller frame is equipped with a stop wheel that rotatably abuts against the end face of the workpiece. This allows the operator to determine the origin of the lateral movement of the grinding mechanism and also prevents the workpiece from moving along the length of the processing table during grinding.

[0015] Furthermore, the roller frame moves along the width of the processing table to accommodate workpieces of different diameters.

[0016] Furthermore, the rollers not connected to the roller drive motor are adjusted in position along the width of the processing table to accommodate workpieces of different diameters.

[0017] The beneficial effects of the present invention are: the motor mounting bracket can swing so as to adjust the angle of the grinding unit according to the weld seam to be ground, so that the grinding unit can adapt to the grinding requirements of axial weld seams and circumferential weld seams on the tank body.

[0018] The workpiece is placed on the rollers of the support mechanism. As the rollers rotate, the workpiece rotates around its transverse axis. Simultaneously, the grinding unit of the grinding mechanism moves towards the workpiece to grind the circumferential weld. When grinding the axial weld, the axial weld of the workpiece contacts the working area of ​​the grinding unit. The grinding unit moves along the axial direction of the workpiece to grind the axial weld on the outer surface of the workpiece. During the grinding of the axial weld, the workpiece does not rotate.

[0019] The above grinding process eliminates the need for secondary clamping of the workpiece, significantly improving processing efficiency and ease of operation. This ensures that both circumferential and axial welds receive efficient and high-quality grinding treatment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first-view frontal perspective.

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the second frontal view of the present invention.

[0022] Figure 3 This is a top view of the structure of the present invention.

[0023] Figure 4 for Figure 3 Schematic diagram of the left-side view structure.

[0024] Figure 5 for Figure 3 Schematic diagram of the structure in direction A.

[0025] Figure 6 This is a schematic diagram of the roller frame structure on the fixed side.

[0026] Figure 7This is a schematic diagram of the roller frame installation structure.

[0027] Figure 8 This is a schematic diagram of the installation structure for the grinding mechanism.

[0028] Figure 9 A three-dimensional structural diagram of the working side of the grinding mechanism.

[0029] Figure 10 This is a schematic diagram of the working side and back structure of the grinding mechanism.

[0030] Figure 11 This is a schematic diagram of the working side structure of the grinding mechanism.

[0031] Figure 12 This is a schematic diagram of the structure on the side of the grinding drive motor.

[0032] Figure 13 This is a structural diagram of the grinding unit side.

[0033] The text labels in the diagram represent: 1. Processing table; 2. Roller frame; 3. Roller; 4. Roller drive motor; 5. Sliding seat; 6. Column; 7. Base mounting plate; 8. Base; 9. Motor mounting bracket; 10. Grinding drive motor; 11. Grinding mounting plate; 12. Horizontal drive mechanism; 13. Grinding drive wheel; 14. Grinding driven wheel; 15. Sanding belt; 16. Limiting wheel; 17. Push frame; 18. Grip part; 19. Dust suction pipe; 20. Stop wheel; 21. Roller seat; 22. Lifting part; 23. Rotating shaft; 24. Arc-shaped hole; 25. Locking bolt; 26. Support. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0035] Example 1, such as Figure 1-13 As shown, the structure of this embodiment is a surface processing system for tubular workpieces, which includes a processing table 1. The upper end of the processing table 1 is provided with a support mechanism and a grinding mechanism at intervals along its width direction.

[0036] The support mechanism includes roller frames 2 spaced apart along the length of the processing table 1. In this embodiment, two roller frames are used for illustration. Two roller seats 21 are spaced apart at the upper end of the roller frame 2 along the width of the processing table 1. Rollers 3 are mounted on the roller seats 21 via rotating shafts. The axis of the rollers 3 is arranged along the length of the processing table 1. At least one roller 3 is connected to a roller drive motor 4. In this embodiment, one of the two rollers 3 is connected to the roller drive motor 4. The roller drive motor 4 is mounted on the roller frame 2. The output shaft of the roller drive motor 4 is connected to the rotating shaft of one roller 3 via a belt, chain, or other means.

[0037] The grinding mechanism includes a sliding seat 5 that moves along the length of the processing table 1. The sliding seat 5 can be driven by existing linear drive mechanisms such as linear modules and lead screws. To improve the stability of the movement of the sliding seat 5, a guide rail is provided on the upper end of the processing table 1 along its length, and the sliding seat 5 is disposed on the guide rail.

[0038] The upper end of the sliding seat 5 is provided with a column 6, and the column 6 is provided with a base mounting plate 7 that moves vertically. The base mounting plate 7 is fixedly installed on the lifting part 22. The lifting part 22 is driven by existing linear drive mechanisms such as linear modules and lead screws to move along the vertical guide rail on the side wall of the column 6. The upper end of the base mounting plate 7 is provided with a base 8, and a motor mounting bracket 9 is rotatably mounted on the base 8. The rotation axis of the motor mounting bracket 9 is in the same direction as the width direction of the processing table 1. The angle of the motor mounting bracket 9 is fixed by a locking device. The locking device can be a device that fixes two parts together in the prior art. In this embodiment, the base 8 and the motor mounting bracket 9 are connected by a rotating shaft 23. The rotating shaft 23 is close to the motor mounting bracket 9. The motor mounting bracket 9 is provided with an arc-shaped hole 24. The center of the arc-shaped hole 24 is the same as the center of the rotating shaft 23. The locking device is a locking bolt 25 in which a screw passes through the arc-shaped hole 24 and is threadedly connected to the base 8. When the locking bolt 25 is loosened, the motor mounting bracket 9 can be rotated. After rotation, the locking bolt 25 is tightened. A grinding drive motor 10 is fixedly installed on the motor mounting bracket 9. The side end of the motor mounting bracket 9 is fixedly connected to the grinding mounting plate 11. A grinding unit driven by the grinding drive motor 10 is installed on the grinding mounting plate 11.

[0039] The grinding unit can use a grinding wheel or similar material. In this embodiment, the grinding unit includes grinding drive wheels 13 and grinding driven wheels 14 spaced apart along the width direction of the processing table 1. The grinding drive wheels 13 are connected to the grinding drive motor 10. The sanding belt 15 winds around the grinding drive wheels 13 and grinding driven wheels 14. To tension the sanding belt 15, a tensioning wheel is also provided on the grinding mounting plate 11. The tensioning wheel contacts the inner side of the sanding belt 15, and the movement path of the sanding belt 15 is in the same direction as the width direction of the processing table 1. Limiting wheels 16 are provided on both sides of the working area of ​​the sanding belt 15. The limiting wheels 16 are arranged in the same direction as the grinding drive wheels 13. The limiting wheels 16 are rotatably mounted on a limiting frame, which is fixedly mounted on the grinding mounting plate 11. A buffer layer is covered on the outside of the limiting wheels 16. The buffer layer can be made of elastic materials such as rubber or silicone, and the outer wall of the buffer layer is higher than the outer surface of the sanding belt 15.

[0040] A pusher frame 17 is provided on the grinding mounting plate 11. The pusher frame 17 passes under the sanding belt 15. A gripping part 18 is provided on the pusher frame 17. The sanding belt 15 is located between the gripping part 18 and the grinding mounting plate 11. A dust suction pipe 19 is provided on the working side of the grinding unit. The dust suction pipe 19 can be installed on the pusher frame 17 and is connected to a dust suction device, etc.

[0041] Specific working process: The staff first hoisted the workpiece onto the support mechanism, ensuring that the axial direction of the workpiece is consistent with the length direction of the processing table 1, and that the lower part of the pipe sidewall is in close contact with the upper part of the roller 3 sidewall.

[0042] After the workpiece is hoisted, during the grinding of the annular weld, the operator adjusts the motor mounting bracket 9 so that the axes of the grinding drive wheel 13 and the grinding driven wheel 14 are parallel to the length of the processing table 1. Then, the height of the base mounting plate 7 and the lateral position of the sliding seat 5 are adjusted to ensure that the abrasive belt 15 is precisely aligned with the annular weld of the workpiece. Afterward, the roller drive motor 4 starts, driving the roller 3 to rotate, which in turn drives the workpiece to rotate. Simultaneously, the abrasive belt 15 moves towards the workpiece until it makes close contact with the weld, thus initiating and completing the grinding of the annular weld.

[0043] When grinding the axial weld seam, the workpiece remains stationary, ensuring the weld seam is centered on the workpiece and facing the grinding mechanism. Simultaneously, the operator adjusts the motor mounting bracket 9 so that the axes of the grinding drive wheel 13 and the grinding driven wheel 14 are aligned with the vertical direction (height direction) of the processing table 1. Then, the abrasive belt 15 is aligned with the weld seam, and the sliding seat 5 slowly moves along the length of the processing table 1 from one end of the workpiece to the other, while the abrasive belt 15 moves to grind the weld seam, thus completing the grinding process of the axial weld seam.

[0044] Example 2, as Figure 1-13As shown, the other structures and working processes of this embodiment are the same as in Embodiment 1. However, since the diameters and lengths of different workpieces vary, in this embodiment, the base 8 slides along the width direction of the processing table 1 under the drive of the transverse drive mechanism 12. To improve the moving stability of the base 8, a base guide rail is provided at the upper end of the base mounting plate 7 along the width direction of the processing table 1, and the base 8 is mounted on these guide rails. The transverse drive mechanism 12 can be a cylinder, an electric push rod, etc. In this embodiment, the cylinder body of the transverse drive mechanism 12 is fixedly mounted on the base mounting plate 7 or the lifting part 22.

[0045] The spacing between the roller frames 2 can be adjusted along the length of the processing table 1, thus supporting workpieces of different lengths. Therefore, in this embodiment, at least one roller frame 2 can slide along the length of the processing table 1. At the same time, since the distance between workpieces of different diameters and the sanding belt 15 is different, in order to ensure the grinding effect, the roller frame 2 is required to move along the width of the processing table 1.

[0046] For this purpose, the two roller frames 2 are independently mounted on the transverse guide rails at the upper ends of the two supports 26. A drive mechanism is installed on the support 26 to push the roller frames 2 to move. The drive mechanism can be a hydraulic cylinder, an electric push rod, etc. In this embodiment, a transverse screw is provided at the upper end of the support 26 along the width direction of the processing table 1. The two ends of the transverse screw are connected to the bearing seats at the upper end of the support 26, and one end of the transverse screw extends out of the bearing seat and is connected to a handle or a motor. When the transverse screw is rotated, the distance between the roller frame 2 and the grinding mechanism can be adjusted.

[0047] One support 26 is fixedly installed on the upper end of the processing table 1, and the other support 26 is set on the support guide rail on the upper end of the processing table 1, with the support guide rail arranged along the length of the processing table 1. The support 26 set on the support guide rail can be driven by existing drive devices such as hydraulic cylinders, linear modules, and lead screws. As the sliding support 26 moves, the distance between the two roller frames 2 can be adjusted.

[0048] A stop wheel 20 is rotatably mounted on the fixed roller frame 2, with the axis of the stop wheel 20 extending obliquely upwards towards the outside of the processing table 1. During work lifting, the end face of the workpiece abuts against the stop wheel 20.

[0049] The upper end of the roller frame 2 has an elongated hole along the width direction of the processing table 1. The lower end of the roller seat 21 is adapted to the elongated hole, and the roller 3 on the roller seat 21 is not connected to the roller drive motor 4. The lower end of the roller seat 21 extends into the roller frame 2 and is connected to the roller frame drive mechanism, which can be a hydraulic cylinder, electric push rod, etc. In this embodiment, the roller frame 2 is equipped with a rotatable adjusting screw, which is set along the width direction of the processing table 1 and threadedly connected to the roller seat 21 extending into the roller frame 2. One end of the adjusting screw extends out of the roller frame 2 for connection to a handle or motor. By rotating the adjusting screw, the distance between the two rollers 3 can be adjusted.

[0050] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A surface processing system for tubular workpieces, comprising a processing table (1), wherein a support mechanism and a grinding mechanism are spaced apart along the width direction on the upper end of the processing table (1); characterized in that, The support mechanism includes roller frames (2) spaced apart along the length of the processing table (1), with rollers (3) spaced apart at the upper end of the roller frames (2) along the width of the processing table (1). The axis of the rollers (3) is arranged along the length of the processing table (1), and at least one roller (3) is connected to a roller drive motor (4). The grinding mechanism includes a sliding seat (5) that moves along the length of the processing table (1), with a column (6) at the upper end of the sliding seat (5). A base mounting plate (7) that moves vertically is mounted on the column (6), and the upper end of the base mounting plate (7) is provided with... There is a base (8), on which a motor mounting bracket (9) is rotatably mounted. The rotation axis of the motor mounting bracket (9) is in the same direction as the width direction of the processing table (1), so that the rotation axis of the grinding unit is set to be parallel to the length direction of the processing table (1) or parallel to its height direction. The angle of the motor mounting bracket (9) is fixed by a locking device. A grinding drive motor (10) is provided on the motor mounting bracket (9). A grinding mounting plate (11) is provided on the motor mounting bracket (9). A grinding unit driven by the grinding drive motor (10) is provided on the grinding mounting plate (11).

2. The tubular workpiece surface processing system according to claim 1, characterized in that, The base (8) slides along the width direction of the processing table (1) under the drive of the transverse drive mechanism (12).

3. The surface processing system for tubular workpieces according to claim 1, characterized in that, The grinding unit includes a grinding drive wheel (13) and a grinding driven wheel (14) spaced apart along the width direction of the processing table (1). The grinding drive wheel (13) is connected to the grinding drive motor (10) for transmission, and the sanding belt (15) runs around the grinding drive wheel (13) and the grinding driven wheel (14).

4. The surface processing system for tubular workpieces according to claim 3, characterized in that, Limiting wheels (16) are provided on both sides of the working area of ​​the sand belt (15), and the outer side of the limiting wheels (16) is covered with a buffer layer.

5. The surface processing system for tubular workpieces according to claim 1, characterized in that, A pusher (17) is provided on the grinding mounting plate (11), and a grip (18) is provided on the pusher (17).

6. The surface processing system for tubular workpieces according to claim 1, characterized in that, The working side of the polishing unit is equipped with a dust suction pipe (19).

7. The surface processing system for tubular workpieces according to claim 1, characterized in that, The spacing between the roller frames (2) is adjusted along the length of the processing table (1).

8. The surface processing system for tubular workpieces according to claim 7, characterized in that, One side roller frame (2) is fixed, and the other side roller frame (2) is movable. The fixed roller frame (2) is rotatably equipped with a stop wheel (20).

9. The surface processing system for tubular workpieces according to claim 1, characterized in that, The roller frame (2) moves along the width direction of the processing table (1).

10. A surface processing system for tubular workpieces according to claim 1, characterized in that, The position of the roller (3) which is not connected to the roller drive motor (4) is adjusted along the width direction of the processing table (1).

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