Five-star seat foot welding front pipe port polishing tooling

Abstract

This utility model belongs to the field of seat five-star base manufacturing technology, and in particular, it is a fixture for grinding the end of a tube fitting before welding a seat five-star base. The proposed solution includes a worktable, on which a protective shell is supported by a bracket. Three connecting rods pass through the upper end plate of the worktable, and an adjusting plate is mounted on the upper end of each of the three connecting rods. A base plate is mounted on the lower end of the three connecting rods, and a limiting part that is fixedly connected to the upper end plate of the worktable passes through the center of the base plate. A motor is mounted on the protrusion in the center of the upper end plate of the worktable, and a grinding disc is mounted on the output end of the motor. This utility model effectively prevents debris from scattering during grinding by using the protective shell and adjusting plate to cover the opening at the bottom of the protective shell, thus preventing it from affecting the working environment. Furthermore, it allows for the direct vertical placement of the tube fitting, and the grinding disc is driven by the motor to grind the tube fitting, facilitating operator operation.

Description

Technical Field

[0001] This utility model relates to the field of seat five-star base production technology, and in particular to a tooling for grinding the end of the tube before welding the seat five-star base. Background Technology

[0002] A five-star base typically consists of five metal legs. This design is not only aesthetically pleasing but also sturdy and durable. It can withstand greater pressure, ensuring the stability of the office chair during use and preventing accidental tipping due to an unstable center of gravity. Furthermore, the five-star design effectively distributes pressure, reducing damage to the floor.

[0003] During the production of five-star feet, a certain length of tubing is usually used, which is pressed and then welded. After the tubing is cut to a fixed length, there will be burrs at the end, so it needs to be polished to remove the burrs. The conventional method is for workers to hold the tubing directly close to the polishing machine for polishing. However, this method causes debris to fly everywhere during the polishing process, affecting the working environment and even causing injury to workers, which is not conducive to production and processing. Utility Model Content

[0004] The purpose of this utility model is to address the deficiencies of the existing technology by providing a grinding fixture for the port of the five-star base of a seat before welding, thereby solving the problems mentioned in the background art.

[0005] A fixture for grinding the port of a five-star base welding pipe for a seat includes a worktable and a grinding mechanism mounted on it. The grinding mechanism includes a protective shell, an adjusting plate, connecting rods, a base plate, a limiting part, a motor, a grinding disc, a baffle, a fixed cylinder, a limiting plate, a fixing plate, and screws. The protective shell is mounted on the worktable by a bracket. Three connecting rods pass through the upper end plate of the worktable. The upper ends of the three connecting rods are jointly mounted with the adjusting plate, and the lower ends are mounted with the base plate. The limiting part, which is fixedly connected to the upper end plate of the worktable, passes through the middle of the base plate. The motor is mounted at the protrusion in the middle of the upper end plate of the worktable. The grinding disc is mounted at the output end of the motor. The baffle is fixedly mounted at the top of the motor housing. The fixed cylinder is provided at the opening at the top of the protective shell. Three screws are rotatably mounted around the fixed cylinder. The ends of the screws are rotatably connected to the limiting plate at the inner ring of the fixed cylinder. The fixing plate, which extends to the outside of the fixed cylinder, is fixed to the side wall of the limiting plate.

[0006] By adopting the above technical solution, it is possible to effectively prevent the debris from scattering everywhere during the grinding process and affecting the working environment. Furthermore, the pipe can be placed vertically and the grinding disc can be driven by a motor to grind the pipe.

[0007] Both the upper plate and the bottom plate of the workbench have through holes for electrically connecting cables to the motor through the through holes in the bottom plate and the upper plate of the workbench.

[0008] By adopting the above technical solution, it is convenient to connect external cables to the motor.

[0009] The protective shell has a frustum-shaped structure and an opening at the bottom.

[0010] By adopting the above technical solution, debris can be prevented from scattering everywhere during the polishing process.

[0011] The bottom of the baffle is provided with an annular groove, which is arranged vertically to correspond with the inner ring of the adjusting plate. The inner ring of the outer edge boss of the adjusting plate is fitted to the bottom edge of the protective shell.

[0012] By adopting the above technical solution, the opening at the bottom of the protective shell is blocked by the adjustment plate, preventing debris from splashing everywhere during the grinding process.

[0013] The limiting part consists of a stud and a nut. The stud is fixed to the top of the upper end plate of the workbench, and the nut is connected to the stud and is located below the base plate to restrict the degree of freedom of the base plate to move downward.

[0014] By adopting the above technical solution, the position of the adjustment plate can be easily adjusted to cover the opening at the bottom of the protective shell, and the debris on the adjustment plate can be cleaned after a period of processing.

[0015] The beneficial effects of this utility model's fixture for grinding the ends of the welding tubes before the five-star base of a seat are: By using a protective shell and an adjustment plate to cover the opening at the bottom of the protective shell, it is possible to effectively prevent debris from flying everywhere during the grinding process and affecting the working environment. The pipe can be placed vertically and the grinding disc can be driven by a motor to grind the pipe, which is convenient for the operator. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the grinding fixture for the welding front tube end of the five-star base of the seat proposed in this utility model; Figure 2 A schematic diagram of the grinding fixture for the welding front tube end of the five-star base of the seat proposed in this utility model; Figure 3 This is a schematic diagram of the tooling for grinding the port of the five-star base welding tube of the seat proposed in this utility model.

[0017] In the diagram: 1. Workbench; 2. Support; 3. Protective shell; 4. Adjusting plate; 5. Connecting rod; 6. Base plate; 7. Limiting part; 8. Motor; 9. Grinding disc; 10. Baffle; 1001. Annular groove; 11. Fixed cylinder; 12. Limiting plate; 13. Fixed plate; 14. Screw. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0019] Reference Figure 1-3 A fixture for grinding the end of a five-star base welding tube in a chair includes a worktable 1 and a grinding mechanism mounted on the worktable 1. The grinding mechanism includes a protective shell 3, an adjusting plate 4, connecting rods 5, a base plate 6, a limiting part 7, a motor 8, a grinding disc 9, a baffle 10, a fixing cylinder 11, a limiting plate 12, a fixing plate 13, and a screw 14. The protective shell 3 is mounted on the worktable 1 by a bracket 2. Three connecting rods 5 pass through the upper end plate of the worktable 1. The upper ends of the three connecting rods 5 are jointly mounted with the adjusting plate 4, and the lower ends of the adjusting plate 4 are mounted with the base plate 6. A limiting part 7 is fixedly connected to the upper end plate of the worktable 1 through the middle of the base plate 6. A motor 8 is installed at the protrusion in the middle of the upper end plate of the worktable 1. A grinding disc 9 is installed at the output end of the motor 8. A baffle 10 is fixedly installed at the top of the motor 8 housing. A fixing cylinder 11 is set at the opening at the top of the protective shell 3. Three screws 14 are rotatably installed around the fixing cylinder 11. The ends of the screws 14 are rotatably connected to the limiting plate 12 at the inner ring of the fixing cylinder 11. A fixing plate 13 is fixed to the side wall of the limiting plate 12, which extends to the outside of the fixing cylinder 11.

[0020] Both the upper end plate and the bottom plate 6 of the workbench 1 are provided with through holes for connecting cables to the motor 8 through the through holes of the bottom plate 6 and the upper end plate of the workbench 1, so as to facilitate the connection of external cables to the motor.

[0021] The protective shell 3 is shaped like a frustum and has an opening at the bottom. A limiting plate 12 is installed inside the fixing cylinder 11 at the upper end of the protective shell 3 to adjust the range between the three limiting plates 12 according to the diameter of the pipe fitting, so that the pipe fitting is placed vertically downward and the end of the pipe fitting contacts the grinding disc 9. The end of the pipe fitting is ground by the grinding disc 9. The upper end of the side of the limiting plate 12 facing the central axis of the fixing cylinder 11 is inclined to facilitate the placement of the pipe fitting.

[0022] The bottom of the baffle 10 is provided with an annular groove 1001, which is correspondingly set to the inner ring of the adjusting plate 4. The inner ring of the outer edge boss of the adjusting plate 4 is fitted with the bottom edge of the protective shell 3. When the base plate 6 is dragged upward by the front hand, the adjusting plate 4 is pushed upward by the connecting rod 5, so that the inner ring of the adjusting plate 4 is embedded in the annular groove 1001, and the inner ring of the outer edge boss of the adjusting plate 4 is fitted with the bottom edge of the protective shell 3. The limiting part 7 is composed of a stud and a nut. The stud is fixed to the top of the upper end plate of the workbench 1, and the nut is connected to the stud and set below the base plate 6 to restrict the degree of freedom of the base plate 6 to move downward. Then, the nut of the limiting part 7 is rotated to the bottom of the base plate 6 to restrict the degree of freedom of the base plate 6 to move downward. First, place a pipe fitting in the center and pass it through the fixed cylinder 11 so that its bottom contacts the upper surface of the baffle 10. Then, rotate the screw 14 to push the limiting plate 12 to make a centripetal movement so that the limiting plate 12 can fit against the side wall of the pipe fitting. No clamping is required. The adjustment of the three limiting plates 12 can be completed according to the diameter of the pipe fitting. Then drive 8 to rotate the grinding disc 9. Hold the pipe vertically between the three limit plates 12 and place it downwards. When the pipe contacts the grinding disc 9, the end of the pipe can be ground. During the grinding process, the debris generated by the pipe will splash onto the inner wall of the protective shell 3 and fall onto the adjustment plate 4. It will not splash to the outside and affect the working environment. After working for a period of time, the adjustment plate 4 can be moved downwards to clean up the debris that has fallen on it.

[0023] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A fixture for grinding the end of a five-star base welding tube, comprising a worktable (1) and a grinding mechanism mounted on the worktable (1), characterized in that: The grinding mechanism includes a protective shell (3), an adjusting plate (4), connecting rods (5), a base plate (6), a limiting part (7), a motor (8), a grinding disc (9), a baffle (10), a fixed cylinder (11), a limiting plate (12), a fixing plate (13), and a screw (14). The protective shell (3) is mounted on the worktable (1) by a bracket (2). The upper end plate of the worktable (1) has three connecting rods (5) running through it. The upper ends of the three connecting rods (5) are all fitted with the adjusting plate (4), and the lower ends are fitted with the base plate (6). The middle of the base plate (6) has a fixed connection to the upper end plate of the worktable (1). The motor (8) is installed at the protrusion in the middle of the upper end plate of the worktable (1) connected to the limiting part (7). The grinding disc (9) is installed at the output end of the motor (8). The baffle (10) is fixedly installed at the top of the motor (8) housing. The fixed cylinder (11) is provided at the top opening of the protective shell (3). Three screws (14) are rotatably installed around the fixed cylinder (11). The ends of the screws (14) are rotatably connected to the limiting plate (12) at the inner ring of the fixed cylinder (11). The side wall of the limiting plate (12) is fixed with the fixing plate (13) that penetrates to the outside of the fixed cylinder (11).

2. The fixture for grinding the ends of the five-star base welding tubes of the seat according to claim 1, characterized in that: The upper plate and the bottom plate (6) of the workbench (1) are provided with through holes for electrically connecting the cable to the motor (8) through the through holes of the bottom plate (6) and the upper plate of the workbench (1).

3. The fixture for grinding the ends of the five-star base welding tubes of the seat according to claim 2, characterized in that: The protective shell (3) is configured in the shape of a frustum and has an opening at the bottom.

4. The fixture for grinding the end of the five-star base of the seat before welding, as described in claim 3, is characterized in that: The bottom of the baffle (10) is provided with an annular groove (1001), which is arranged vertically and vertically with the inner ring of the adjusting plate (4). The inner ring of the outer edge boss of the adjusting plate (4) is fitted with the bottom edge of the protective shell (3).

5. The fixture for grinding the end of the five-star base of the seat before welding, as described in claim 4, is characterized in that: The limiting part (7) is composed of a stud and a nut. The stud is fixed to the top of the upper end plate of the workbench (1), and the nut is connected to the stud and set below the base plate (6) to restrict the degree of freedom of the base plate (6) to move downward.

Images