A multi-row pipe gap grinding fixture

Abstract

This application provides a multi-row pipe gap grinding fixture, suitable for grinding multiple rows of pipes fixed at both ends with gaps between them. It includes: a base with a drive assembly on its top surface; a buffer assembly comprising two buffer parts mounted on the base and distributed on opposite sides below the drive assembly, the buffer parts being movable in a direction parallel to the top surface of the base; a grinding assembly mounted on the base and located below the buffer assembly, with a central grinding shaft at its bottom, the central grinding shaft being movable in a direction perpendicular to the top surface of the base; and a grinding belt tensioned by the output shaft of the drive assembly, the two buffer parts, and the central grinding shaft, grinding different depths between the multiple rows of pipes as the central grinding shaft moves.

Description

Technical Field

[0001] This disclosure generally relates to the field of pipe grinding technology, and specifically to a grinding fixture for gaps between multiple rows of pipes. Background Technology

[0002] In the field of metal tube processing, multi-row tubes are widely used due to their compact structure and high space utilization. These multi-row tubes have gaps between them. To ensure their performance and safety, these gaps need to be ground to remove burrs, rust, and other impurities, ensuring clean gaps and a smooth tube surface.

[0003] In the existing technology, grinding of the gaps between multiple rows of pipes is mostly done manually or with ordinary tooling. Manual grinding is inefficient and the accuracy is difficult to guarantee. Ordinary tooling has fixed grinding parts, which cannot be adapted to gaps of different depths. At the same time, it is easy to generate large vibrations during the grinding process, which not only affects the stability and quality of grinding, but may also damage the multiple rows of pipes fixed at both ends, making it difficult to meet the requirements of efficient and precise grinding. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a multi-row pipe gap grinding tool to solve the above problems.

[0005] This application provides a multi-row pipe gap grinding fixture, including: A base, the top surface of which is provided with a driving assembly; A buffer assembly, comprising two buffer sections mounted on the base and distributed on opposite sides below the drive assembly, wherein the buffer sections are movable in a direction parallel to the top surface of the base; A grinding assembly is mounted on the base and located below the buffer assembly. The bottom of the grinding assembly is provided with a central grinding shaft, which is movable in a direction perpendicular to the top surface of the base. The grinding belt is tensioned to the central grinding shaft via the output shaft of the drive assembly, the two buffer sections, and moves with the central grinding shaft to grind positions at different depths between multiple rows of pipes.

[0006] According to the technical solution provided in the embodiments of this application, the buffer assembly further includes a fixed platform, and the two buffer parts are respectively disposed on both sides of the fixed platform. The buffer parts include: Two guide rods extend in a direction parallel to the top surface of the base, and the arrangement direction of the two guide rods is perpendicular to their own extension direction; Two sliding blocks are respectively sleeved on two guide rods, and the sliding blocks are slidable along the extension direction of the guide rods; a buffer shaft is installed between the two sliding blocks, and the buffer shaft is used to tension the grinding belt; A buffer element is sleeved on the guide rod, with one end connected to the fixed platform and the other end connected to the sliding block. The buffer element is extendable and retractable along the extension direction of the guide rod.

[0007] According to the technical solution provided in the embodiments of this application, the buffer assembly further includes a connecting plate, which connects and fixes the two sliding blocks, and the connecting plate is provided with an avoidance groove at the position corresponding to the buffer shaft.

[0008] According to the technical solution provided in the embodiments of this application, a limiting part is provided at the end of the guide rod away from the fixed platform.

[0009] According to the technical solution provided in the embodiments of this application, the polishing component includes: Mounting platform, which is fixed to the base, and the mounting platform has a space inside for the movement of the central grinding shaft; Two tensioning shafts are respectively located on both sides of the mounting platform.

[0010] According to the technical solution provided in the embodiments of this application, the grinding assembly further includes two auxiliary grinding shafts, which are respectively disposed on both sides of the mounting platform and below the tensioning shaft.

[0011] According to the technical solution provided in the embodiments of this application, the position of the central grinding shaft is adjusted by an adjusting component, the adjusting component comprising: A propulsion device is mounted on the base and positioned above the mounting platform, and the movable end of the propulsion device is retractable in a direction perpendicular to the top surface of the base; A guide block passes through the mounting platform and is slidably connected to the mounting platform. One end of the guide block is connected to the movable end of the propulsion device, and the other end is connected to the central grinding shaft.

[0012] According to the technical solution provided in the embodiments of this application, the driving component includes: Multiple support columns, each support column extending in a direction perpendicular to the top surface of the base and having one end fixed to the top surface of the base; A support plate, which is sleeved on a plurality of support columns, and a drive device for providing grinding power is installed on the support plate; An elastic element is sleeved on the support column, with one end abutting against the top surface of the base and the other end connected to the support plate.

[0013] According to the technical solution provided in the embodiments of this application, it also includes a workpiece placement stage, wherein the workpiece placement stage is provided with a plurality of fixing blocks for placing multiple rows of pipes, and the fixing blocks are provided with grooves.

[0014] According to the technical solution provided in the embodiments of this application, the base is also provided with fixed support feet at the bottom.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: the multi-row pipe gap grinding fixture is suitable for grinding the gaps between multi-row pipes fixed at both ends, and the grinding operation is achieved by driving the tensioned grinding belt through the drive component; two buffer parts that can move in a direction parallel to the top surface of the base can buffer the reaction force of the grinding belt during grinding, reducing the impact of vibration on the grinding accuracy; the central grinding shaft can move in a direction perpendicular to the top surface of the base, driving the grinding belt to adjust its position, thereby adapting to grinding gaps of different depths between multi-row pipes, improving the applicability and grinding efficiency of the fixture. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of the multi-row pipe gap grinding fixture provided in this application; Figure 2 A schematic diagram of the front structure of the polished component; Figure 3 This is a schematic diagram of a structure in which multiple rows of pipes are installed on a workpiece placement platform.

[0017] Reference numerals: 1. Base; 2. Center grinding shaft; 3. Grinding belt; 4. Fixing table; 5. Guide rod; 6. Sliding block; 7. Buffer shaft; 8. Buffer component; 9. Connecting plate; 10. Clearance groove; 11. Limiting part; 12. Mounting table; 13. Tensioning shaft; 14. Auxiliary grinding shaft; 15. Propulsion device; 16. Guide block; 17. Support column; 18. Support plate; 19. Drive device; 20. Elastic component; 21. Workpiece placement table; 22. Fixing block; 23. Groove; 24. Fixing leg; 25. Pipe end; 26. Pipe body; 27. Welding point. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Please refer to Figures 1-3 This application provides a multi-row pipe gap grinding fixture, suitable for grinding multiple rows of pipes with gaps between them and both ends fixed, including: Base 1, the top surface of which is provided with a driving assembly; A buffer assembly, comprising two buffer sections mounted on the base 1 and distributed on opposite sides below the drive assembly, wherein the buffer sections are movable in a direction parallel to the top surface of the base 1; A grinding assembly is mounted on the base 1 and located below the buffer assembly. The bottom of the grinding assembly is provided with a central grinding shaft 2, which is movable in a direction perpendicular to the top surface of the base 1. The grinding belt 3 is tensioned to the central grinding shaft 2 via the output shaft of the drive assembly and the two buffer parts, and grinds positions at different depths between multiple rows of pipes as the central grinding shaft 2 moves.

[0021] Specifically, in this embodiment, the multi-row pipe is welded from the pipe end 25 and the pipe body 26. Each multi-row pipe includes at least two pipe bodies 26. The position of the multi-row pipe that needs to be ground is the welding point 27 where the pipe end 25 and the pipe body 26 are connected. Since the space between adjacent pipe bodies 26 is small, it is inconvenient to grind the welding point 27 on the side where the two pipe bodies 26 are close to each other. Therefore, this application provides a tooling that can effectively solve this problem.

[0022] Specifically, the fixture includes a base 1, which serves as the basic support structure for the entire fixture, with a flat mounting surface on its top. A drive assembly is mounted on the top surface of the base 1, providing power to drive the grinding operation. A buffer assembly is also mounted on the base 1, comprising two independent buffer sections located on opposite sides below the drive assembly and assembled with the base 1. Each buffer section can move in a direction parallel to the top surface of the base 1, thus providing cushioning during the grinding process. A grinding assembly is also mounted on the base 1, located below the buffer assembly and fixedly connected to the base 1. A central grinding shaft 2 is located at the bottom of the grinding assembly, capable of moving up and down in a direction perpendicular to the top surface of the base 1 to adjust the grinding position. The fixture also includes a grinding belt 3, which is sequentially fitted onto the output shaft of the drive assembly, the two buffer parts, and the central grinding shaft 2. The tension is achieved through the cooperation of each component. When the drive assembly is working, the output shaft drives the grinding belt 3 to rotate to achieve the grinding action. At the same time, as the central grinding shaft 2 moves in a direction perpendicular to the top surface of the base 1, the grinding belt 3 can adjust its position accordingly, thereby accurately grinding the gaps at different depths between multiple rows of pipes.

[0023] Furthermore, the buffer assembly also includes a fixed platform 4, with the two buffer sections respectively disposed on both sides of the fixed platform 4. Each buffer section includes: Two guide rods 5 extend in a direction parallel to the top surface of the base 1, and the arrangement direction of the two guide rods 5 is perpendicular to their own extension direction; Two sliding blocks 6 are respectively sleeved on the two guide rods 5, and the sliding blocks 6 can slide along the extension direction of the guide rods 5; a buffer shaft 7 is installed between the two sliding blocks 6, and the buffer shaft 7 is used to tension the grinding belt 3; A buffer 8 is sleeved on the guide rod 5, with one end connected to the fixed platform 4 and the other end connected to the sliding block 6. The buffer 8 is telescopic along the extension direction of the guide rod 5.

[0024] Specifically, the buffer assembly also includes a fixed platform 4, which is mounted on the top surface of the base 1, providing a mounting base for the two buffer sections. The two buffer sections are symmetrically arranged on the left and right sides of the fixed platform 4, with identical structures. Each buffer section includes two guide rods 5, which extend horizontally in a direction parallel to the top surface of the base 1, and the two guide rods 5 are arranged vertically in a direction perpendicular to their extension, forming a stable guiding structure. Each guide rod 5 is fitted with a sliding block 6, which can slide freely along the extension direction of the guide rod 5. A buffer shaft 7 is horizontally installed between the two sliding blocks 6, and the outer circumferential surface of the buffer shaft 7 contacts the grinding belt 3 to help tension the grinding belt 3. A buffer element 8 is also fitted on the guide rod 5, one end of which is connected to the side of the fixed platform 4, and the other end is connected to the sliding block 6. It can extend and retract along the extension direction of the guide rod 5. When the sliding block 6 slides, the buffer element 8 can provide buffering force through its own extension and retraction. Optionally, the buffer element 8 is a spring.

[0025] The guide rod 5 provides a stable sliding guide for the sliding block 6, ensuring that the buffer shaft 7 moves in a fixed direction; the buffer 8 can buffer the impact force when the grinding belt 3 is running by telescopic movement, reducing the impact of vibration on the grinding accuracy; the buffer shaft 7, together with the sliding block 6 and the buffer 8, can maintain the tension of the grinding belt 3 to ensure the grinding effect, and can also adapt to the dynamic tension changes of the grinding belt 3 through elastic buffering, further improving the stability of the grinding process, avoiding damage to multiple rows of pipes caused by vibration, and improving the quality and efficiency of gap grinding.

[0026] Furthermore, the buffer assembly also includes a connecting plate 9, which connects and fixes the two sliding blocks 6, and the connecting plate 9 is provided with a relief groove 10 corresponding to the position of the buffer shaft 7.

[0027] Specifically, the buffer assembly also includes a connecting plate 9, which is flat and has its two ends fixedly connected to two sliding blocks 6 in the same buffer section, connecting the two sliding blocks 6 into a whole so that they can slide synchronously along the guide rod 5. This prevents the buffer shaft 7 from tilting due to the offset of a single sliding block 6 and ensures that the grinding belt 3 is evenly tensioned. A relief groove 10 is provided on the connecting plate 9 at the position corresponding to the buffer shaft 7. The shape of the relief groove 10 is adapted to the outer periphery of the buffer shaft 7 to provide sufficient movement space for the buffer shaft 7, avoid interference between the connecting plate 9 and the buffer shaft 7, and ensure that the buffer shaft 7 works normally.

[0028] Furthermore, a limiting part 11 is provided at the end of the guide rod 5 away from the fixed platform 4.

[0029] Specifically, a limiting part 11 is provided at the end of the guide rod 5 away from the fixed platform 4. This limiting part 11 can be a protruding structure integrally formed with the guide rod 5, or it can be a stop block fixed to the end of the guide rod 5 by means of threaded connection or other means. Its outer diameter is larger than the diameter of the guide rod 5 and larger than the diameter of the through hole on the sliding block 6 through which the guide rod 5 passes. When the sliding block 6 slides along the guide rod 5 in a direction away from the fixed platform 4, the limiting part 11 can prevent the sliding block 6 from disengaging from the guide rod 5, ensuring that the sliding block 6 always moves within the effective range of the guide rod 5.

[0030] Furthermore, the polishing assembly includes: Mounting platform 12, which is fixed on the base 1, has a space inside for the movement of the central grinding shaft 2; Two tensioning shafts 13 are respectively located on both sides of the mounting platform 12.

[0031] Specifically, the grinding assembly includes a mounting platform 12 and two tensioning shafts 13. The mounting platform 12 is fixedly mounted on the top surface of the base 1, and its interior is hollow, forming a space for the central grinding shaft 2 to move up and down, ensuring that the central grinding shaft 2 can move flexibly in a direction perpendicular to the top surface of the base 1. The two tensioning shafts 13 are respectively horizontally arranged on the left and right sides of the mounting platform 12, and the two ends of the shaft are connected and fixed to the side walls of the mounting platform 12. The outer circumferential surface of the tensioning shaft 13 contacts the grinding belt 3, and is used to cooperate with other shafts to tension the grinding belt 3, ensuring that the grinding belt 3 will not loosen during operation.

[0032] Furthermore, the polishing assembly also includes two auxiliary polishing shafts 14, which are respectively located on both sides of the mounting platform 12 and below the tensioning shaft 13.

[0033] Specifically, the grinding assembly also includes two auxiliary grinding shafts 14, which are respectively installed on the left and right sides of the mounting platform 12 and positioned directly below the tensioning shaft 13. Both ends of the shafts are fixedly connected to the side walls of the mounting platform 12. The outer circumferential surface of the auxiliary grinding shaft 14 contacts the grinding belt 3, and its axial direction is parallel to the tensioning shaft 13. During the operation of the grinding belt 3, the auxiliary grinding shaft 14 provides further support to the grinding belt 3, ensuring a flat grinding surface at the corresponding gaps between multiple rows of pipes. This prevents the grinding effect from being affected by the sagging of the grinding belt 3. Furthermore, the auxiliary grinding shaft 14 can also abut against the pipe walls of the multiple rows of pipes to grind non-pipe-to-pipe gaps.

[0034] Furthermore, the position of the central grinding shaft 2 is adjusted by an adjustment component, the adjustment component comprising: A propulsion device 15 is mounted on the base 1 and located above the mounting platform 12. The movable end of the propulsion device 15 is retractable in a direction perpendicular to the top surface of the base 1. Guide block 16, which passes through the mounting platform 12 and is slidably connected to the mounting platform 12, with one end of guide block 16 connected to the movable end of the propulsion device 15 and the other end connected to the central grinding shaft 2.

[0035] Specifically, the position of the central grinding shaft 2 is adjusted by an adjustment assembly, which includes a propulsion device 15 and a guide block 16. The propulsion device 15 is mounted on the top surface of the base 1 and directly above the mounting platform 12. Its movable end is retractable in a direction perpendicular to the top surface of the base 1, providing power for the movement of the central grinding shaft 2. The guide block 16 has a columnar structure, vertically penetrating the movable space inside the mounting platform 12 and forming a sliding connection with the inner wall of the mounting platform 12. The top end of the guide block 16 is fixedly connected to the movable end of the propulsion device 15, and the bottom end is connected to the end of the central grinding shaft 2. When the movable end of the propulsion device 15 extends or retracts, the guide block 16 drives the central grinding shaft 2 to move synchronously in a vertical direction, ensuring the accuracy of the movement direction of the central grinding shaft 2.

[0036] Furthermore, the driving component includes: Multiple support columns 17, each support column 17 extending in a direction perpendicular to the top surface of the base 1 and having one end fixed to the top surface of the base 1; A support plate 18 is sleeved on a plurality of support columns 17, and a drive device 19 for providing grinding power is installed on the support plate 18. The elastic element 20 is sleeved on the support column 17, with one end abutting against the top surface of the base 1 and the other end connected to the support plate 18.

[0037] Specifically, the drive assembly includes multiple support columns 17, a support plate 18, and an elastic element 20. The support columns 17 extend vertically along a direction perpendicular to the top surface of the base 1, and their bottom ends are fixedly connected to the top surface of the base 1, providing a stable support foundation for the entire drive assembly. The support plate 18 is flat and is fitted onto the multiple support columns 17, and can move up and down along the extension direction of the support columns 17. A drive device 19 is installed on the top surface of the support plate 18, which provides power for the grinding operation. Its output shaft is connected to the grinding belt 3 to drive the grinding belt 3 to rotate. The elastic element 20 is fitted onto the support columns 17, with one end abutting against the top surface of the base 1 and the other end connected to the bottom surface of the support plate 18. It can extend and retract along the extension direction of the support columns 17. When the support plate 18 moves up and down, the elastic element 20 can provide a buffering effect through its own elasticity.

[0038] Furthermore, it also includes a workpiece placement platform 21, which is provided with a plurality of fixing blocks 22 for placing multiple rows of pipes, and the fixing blocks 22 are provided with grooves 23.

[0039] Specifically, such as Figure 1 and Figure 3 As shown, the fixture also includes a workpiece placement platform 21, which is located below the grinding assembly and is relatively independent from the base 1. It is used to place the multi-row tubes to be ground. The bottom surface of the workpiece placement platform 21 is connected to the slide rail, allowing it to slide along the extension direction of the guide rod 5. Multiple fixing blocks 22 are installed on the top surface of the workpiece placement platform 21. These fixing blocks 22 are spaced apart along the arrangement direction of the multi-row tubes. Each fixing block 22 has a groove 23 on its top surface. The shape of the groove 23 is adapted to the outer circumference of the multi-row tubes. When the multi-row tubes are placed on the workpiece placement platform 21, the bottom of the tubes will be inserted into the groove 23, thereby positioning and fixing the multi-row tubes and preventing them from shifting during the grinding process.

[0040] Furthermore, the base 1 is also provided with fixed support legs 24 at its bottom.

[0041] Specifically, the overall stability of the tooling can be improved by setting fixed support legs 24.

[0042] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A multi-row tube gap polishing tool suitable for polishing multi-row tubes with both ends fixed and gaps between tubes, characterized in that, include: Base (1), the top surface of which is provided with a driving assembly; The buffer assembly includes two buffer sections, which are mounted on the base (1) and distributed on opposite sides below the drive assembly. The buffer sections are movable in a direction parallel to the top surface of the base (1). A grinding assembly is mounted on the base (1) and located below the buffer assembly. The bottom of the grinding assembly is provided with a central grinding shaft (2), which is movable in a direction perpendicular to the top surface of the base (1). The grinding belt (3) is tensioned to the central grinding shaft (2) via the output shaft of the drive assembly, the two buffer parts, and the central grinding shaft (2), and grinds the positions at different depths between multiple rows of pipes as the central grinding shaft (2) moves.

2. The multirow tube gap lapping tool of claim 1 wherein, The buffer assembly further includes a fixed platform (4), and the two buffer parts are respectively disposed on both sides of the fixed platform (4). The buffer parts include: Two guide rods (5) extend in a direction parallel to the top surface of the base (1), and the arrangement direction of the two guide rods (5) is perpendicular to their own extension direction; Two sliding blocks (6) are respectively sleeved on two guide rods (5), and the sliding blocks (6) can slide along the extension direction of the guide rods (5); a buffer shaft (7) is installed between the two sliding blocks (6), and the buffer shaft (7) is used to tension the grinding belt (3). The buffer (8) is sleeved on the guide rod (5), with one end connected to the fixed platform (4) and the other end connected to the sliding block (6). The buffer (8) is telescopic along the extension direction of the guide rod (5).

3. The multirow tube gap lapping tool of claim 2 wherein, The buffer assembly also includes a connecting plate (9), which connects and fixes the two sliding blocks (6). A clearance groove (10) is provided on the connecting plate (9) at the position corresponding to the buffer shaft (7).

4. The multirow tube gap lapping tool of claim 3 wherein, The guide rod (5) is provided with a limiting part (11) at the end away from the fixed platform (4).

5. The multirow tube gap lapping tool of claim 4 wherein, The polishing components include: Mounting platform (12), which is fixed on the base (1), and the mounting platform (12) has a space inside for the movement of the central grinding shaft (2); Two tensioning shafts (13) are respectively located on both sides of the mounting platform (12).

6. The multirow tube gap lapping tool of claim 5 wherein, The grinding assembly also includes two auxiliary grinding shafts (14), which are respectively located on both sides of the mounting platform (12) and below the tensioning shaft (13).

7. The multirow tube gap lapping tool of claim 6 wherein, The position of the central grinding shaft (2) is adjusted by an adjustment component, the adjustment component comprising: A propulsion device (15) is mounted on the base (1) and located above the mounting platform (12). The movable end of the propulsion device (15) is retractable in a direction perpendicular to the top surface of the base (1). Guide block (16) passes through the mounting platform (12) and is slidably connected to the mounting platform (12). One end of the guide block (16) is connected to the movable end of the propulsion device (15), and the other end is connected to the central grinding shaft (2).

8. The multirow tube gap lapping tool of claim 7 wherein, The driving component includes: Multiple support columns (17) extend in a direction perpendicular to the top surface of the base (1) and one end is fixed to the top surface of the base (1); A support plate (18) is sleeved on a plurality of support columns (17), and a drive device (19) for providing grinding power is installed on the support plate (18). The elastic element (20) is sleeved on the support column (17), with one end abutting the top surface of the base (1) and the other end connected to the support plate (18).

9. The multirow tube gap lapping tool of claim 8 wherein, It also includes a workpiece placement platform (21), which is provided with multiple fixing blocks (22) for placing multiple rows of pipes, and the fixing blocks (22) are provided with grooves (23).

10. The multirow tube gap lapping tool of claim 9 wherein, The base (1) is also provided with fixed support feet (24) at its bottom.

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