A polishing machine for pipe fittings with a cross-section profile

Abstract

The application discloses a polishing machine for pipe fittings with special cross sections, which comprises a workbench and a mechanical arm body, one side of the workbench is fixedly connected with the mechanical arm body through a mounting plate, a fixing mechanism matched with the pipe fittings is arranged on the mechanical arm body, a driven belt pulley is arranged on the workbench through a mounting support, a through hole is formed in the middle of the mounting support and the driven belt pulley, a rotating mechanism matched with the driven belt pulley is arranged in the workbench, polishing assemblies are symmetrically arranged on the side of the driven belt pulley close to the fixing mechanism, and polishing structures are arranged on the side of the workbench away from the mechanical arm body through lifting mechanisms. The polishing machine can guarantee that the abrasive belt is attached to the pipe fittings during polishing, thereby guaranteeing the polishing effect, and can greatly improve the polishing quality and efficiency through the self-rotation and revolution polishing mode, and the polishing machine is simple to operate, has no polishing difficulty, and can be normally used by operators without professional training, and has low skill requirement for the operators.

Description

Technical Field

[0001] This invention relates to the field of polishing equipment technology, specifically to a polishing machine for pipe fittings with irregular cross-sections. Background Technology

[0002] Irregularly shaped pipe fittings are a common type of component. To ensure their precision, these fittings require grinding and polishing. For example, pipe products used in bathroom fixtures require polishing to reduce surface roughness and achieve a bright, smooth surface. Currently, there are two main methods for grinding and polishing irregularly shaped pipe fittings in the industry: one is manual grinding and polishing. However, this method relies entirely on the operator's skill level to determine the grinding quality, demanding high skill from employees. It's easy to grind or polish irregularly shaped parts, making quality control difficult, and resulting in low production efficiency and inconsistent quality. The other method is direct robotic grinding and polishing. However, due to the shape of the irregularly shaped pipe surface, it cannot fit well with the polishing device, easily creating grinding dead corners and causing deformation during polishing. This method also requires highly skilled operators. Summary of the Invention

[0003] The purpose of this invention is to provide a polishing machine for pipe fittings with irregular cross-sections, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a polishing machine for pipe fittings with irregular cross-sections, comprising a worktable and a robotic arm body. One side of the worktable is fixedly connected to the robotic arm body via a mounting plate. The robotic arm body is provided with a fixing mechanism that matches the pipe fitting. A driven pulley is provided on the worktable via a mounting support frame. A through hole is opened in the middle of the mounting support frame and the driven pulley. A rotating mechanism that matches the driven pulley is provided inside the worktable. Polishing components are symmetrically arranged on the side of the driven pulley near the fixing mechanism. Baffles that match the polishing components are symmetrically arranged on the worktable. A polishing structure is provided on the side of the worktable away from the robotic arm body via a lifting mechanism. Both the polishing components and the polishing structure are matched with the pipe fitting. Furthermore, a collecting mechanism that matches the polishing components and the polishing structure is provided inside the worktable.

[0005] Preferably, in order to ensure that the fitting fits the sanding belt, guarantee the polishing effect, and avoid dead corners, the polishing assembly includes sanding belt wheels mounted on the driven pulley, an adjusting wheel between the two sanding belt wheels, the two sanding belt wheels and the adjusting wheel being triangularly distributed and connected by sanding belts, one of the sanding belt wheels being connected to an output end of the polishing motor, and two sets of polishing assemblies on the side wall of the driven pulley being symmetrical about the center of the driven pulley.

[0006] Preferably, in order to allow the driven pulley to rotate while the sanding belt is rotating, so that the two work together to ensure the polishing effect, avoid dead corners, and speed up the polishing efficiency, the rotating mechanism includes a fixed plate set on the inner side wall of the worktable, a drive motor set on the fixed plate, and a drive pulley set at the output end of the drive motor. The drive pulley and the driven pulley are connected by a belt.

[0007] Preferably, in order to facilitate the fixing of polished pipe fittings and adapt to pipe fittings of different shapes, thereby improving the practicality of the device, the fixing mechanism includes a circular plate fixedly connected to the main body of the robotic arm. A rod is horizontally fixed on the side wall of the circular plate. An elastic air bladder matching the inner wall of the pipe fitting is sleeved on the outer side of the end of the rod away from the circular plate. An inflation tube connected to the elastic air bladder is provided on the circular plate.

[0008] Preferably, in order to facilitate the fixing of pipes of different shapes and make subsequent conveying and polishing operations more convenient and simple, L-shaped anti-slip parts are provided at the corners of the periphery of the elastic air reservoir, and elastic anti-slip pads are provided at equal intervals on the periphery of the elastic air reservoir.

[0009] Preferably, in order to facilitate the adjustment of the height of the polishing structure, better fit with the pipe fitting, and polish the surface, the lifting mechanism includes a storage box symmetrically arranged in the worktable, hydraulic telescopic rods equidistantly arranged in the storage box, and a lifting plate at the output end of the hydraulic telescopic rods. The lifting plate is connected to the polishing structure through an inclined component.

[0010] Preferably, in order to facilitate the adjustment of the tilt angle of the polishing structure and thus fit it to the surface of the irregular tube for polishing, the tilting component includes a rectangular plate set on the lifting plate. One end of the rectangular plate is provided with a mounting block via a rotating rod, and the mounting block is fixedly connected to the polishing structure.

[0011] Preferably, in order to polish two surfaces simultaneously, shorten the polishing time, and improve polishing efficiency, the polishing structure includes a polishing motor II fixedly mounted on the mounting block, and the output end of the polishing motor II is provided with a polishing wheel.

[0012] Preferably, in order to facilitate the adjustment of the tilt angle of the polishing structure and thus fit it to the surface of the irregular tube, the tilting component also includes an electric push rod disposed between the polishing motor and the lifting plate. One end of the electric push rod is connected to the lifting plate through a rotating block, and the other end is connected to the bottom end of the polishing motor through a rotating block.

[0013] Preferably, in order to ensure that dust and other materials generated during operation are collected for subsequent processing and to prevent them from drifting into the workshop, thereby creating a comfortable and safe working environment, the collection mechanism includes a collection box set on the inner side wall of the workbench. The collection box is symmetrically equipped with collection pipes, which pass through the workbench and extend upward to a collection port that matches the sanding belt. The top of the collection box is also equipped with a connecting pipe, which passes through the workbench and extends upward to a collection port that matches the polishing wheel.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Through the cooperation of the polishing components and the rotating mechanism, on the one hand, it can ensure that the abrasive belt is in close contact with the pipe during the polishing process, thus ensuring the polishing effect. On the other hand, the use of self-rotation and rotation polishing methods can greatly improve the quality and efficiency of polishing. It is simple to operate, has no polishing difficulty, and can be used normally by untrained operators to complete the polishing. It has low skill requirements for operators.

[0016] The fixed mechanism can easily clamp and fix different pipe fittings, which can facilitate subsequent grinding and polishing and conveying, improve the practicality of the device. It can not only position and fix round pipes, but also fix irregular pipe fittings, and ensure stability during the polishing process, thereby ensuring the polishing effect.

[0017] With its lifting mechanism and polishing structure, the height and tilt angle of the polishing structure can be easily adjusted according to the polishing needs, thus ensuring better contact with the surface of the pipe during the polishing process and guaranteeing the polishing effect. Furthermore, the two sets of polishing structures can polish two surfaces simultaneously, improving polishing efficiency. The collection mechanism facilitates the unified collection of dust and other contaminants generated during the polishing process, making it convenient for subsequent recycling and processing. It also creates a more comfortable and safe working environment, preventing external dust and impurities from drifting into the workshop or even to the outside world. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a polishing machine for pipe fittings with irregular cross-sections proposed in this invention;

[0019] Figure 2 This is one of the partial structural schematic diagrams of a polishing machine for pipe fittings with irregular cross-sections proposed in this invention;

[0020] Figure 3 This is the second partial structural schematic diagram of a polishing machine for pipe fittings with irregular cross-sections proposed in this invention;

[0021] Figure 4 This is a partial structural diagram of the worktable in a polishing machine for pipe fittings with irregular cross-sections, as proposed in this invention.

[0022] Figure 5 This is a schematic diagram of the lifting mechanism and polishing structure in a polishing machine for pipe fittings with irregular cross-sections proposed in this invention;

[0023] Figure 6 This is a schematic diagram of the polishing assembly in a polishing machine for pipes with irregular cross-sections, as proposed in this invention.

[0024] Figure 7 This is a schematic diagram of the fixing mechanism in a polishing machine for pipes with irregular cross-sections, as proposed in this invention.

[0025] Figure 8 This is a partial structural diagram of the fixing mechanism in a polishing machine for pipes with irregular cross-sections, as proposed in this invention.

[0026] In the diagram: 1. Workbench; 2. Mounting plate; 3. Main body of the robotic arm; 4. Circular plate; 5. Baffle; 6. Driven pulley; 7. Polishing motor II; 8. Lifting plate; 9. Adjusting wheel; 10. Sanding belt wheel; 11. Collection pipe; 12. Polishing wheel; 13. Mounting support frame; 14. Storage box; 15. Fixing plate; 16. Drive motor; 17. Drive pulley; 18. Belt; 19. Collection box; 20. Collection port; 21. Connecting pipe; 22. Hydraulic telescopic rod; 23. Electric push rod; 24. Rotating block; 25. Mounting block; 26. Rotating rod; 27. Rectangular plate; 28. Sanding belt; 29. ​​Polishing motor I; 30. Insert rod; 31. Inflation pipe; 32. Elastic air storage bag; 33. L-shaped anti-slip component; 34. Elastic anti-slip mat. Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-8This invention provides an embodiment of a polishing machine for pipe fittings with irregular cross-sections, including a worktable 1 for polishing square pipes, irregularly shaped pipes, etc. A mounting plate 2 is welded to the bottom of one side of the worktable 1 to facilitate the assembly of a robotic arm body 3 (the two can be fixed together by bolts). The robotic arm body 3 is provided with a fixing mechanism for clamping and conveying the pipe fittings. The fixing mechanism includes a circular plate 4 fixedly mounted to the robotic arm body 3 (fixed by welding or bolts). A rod 30 is horizontally welded to the side wall of the circular plate 4 for easy insertion into the pipe fitting. An elastic air reservoir 32 is glued to the end of the rod 30 for tight fixing against the inner wall of the pipe fitting. After insertion into the pipe fitting, the elastic air reservoir 32 can be inflated through an inflation tube 31 on the circular plate 4. The inflation tube 31 can be connected to the output end of an inflation device (such as an air pump, etc.) for easier assembly. (The familiar technology will not be elaborated here). The elastic air bladder 32 can then be inflated. The elastic air bladder 32 has a rectangular shape, and L-shaped anti-slip parts 33 (made of soft, high-friction materials such as rubber) are glued to the four corners. When inflated, the four corners can contact the inner wall of the rectangular tube, thus ensuring a fixed effect and facilitating subsequent conveying and polishing. When dealing with irregularly shaped tubes such as round ones, by inflating the elastic air bladder 32, multiple elastic anti-slip pads 34 on the four sides of the periphery deform and fit against the inner wall of the tube, which can easily clamp and fix different tubes. This facilitates subsequent grinding, polishing, and conveying, improving the practicality of the device. It can not only position and fix round tubes, but also fix irregularly shaped tubes, and ensure stability during the polishing process, thus ensuring the polishing effect.

[0029] Please see Figures 1-8 A driven pulley 6 is rotatably mounted on the top of the workbench 1 via a mounting support frame 13 (operating on the same principle as a bearing, ensuring the driven pulley 6 rotates on the mounting support frame 13 and maintaining stability). A through hole is provided between the mounting support frame 13 and the driven pulley 6 to facilitate the passage of pipe fittings, thus enabling grinding and polishing. Two polishing assemblies are symmetrically arranged on the side wall of the driven pulley 6 near the fixing mechanism. Each polishing assembly includes two sanding belt wheels 10 mounted on the driven pulley 6, with an adjustment mechanism between the two sanding belt wheels 10. The three pulleys 9 are arranged in a triangular pattern. The rear end of the driven pulley 6 is equipped with a polishing motor 29 (which can be fixedly connected by bolts). The output end of the polishing motor 29 passes through the driven pulley 6 and is fixedly connected to one of the sanding pulleys 10 through a coupling. The two sanding pulleys 10 and the adjusting pulley 9 are connected by a sanding belt 28. The polishing motor 29 (which can be powered by a battery, and the battery can be embedded inside the driven pulley 6) can rotate, causing the sanding belt 28 to rotate, so that the pipe can be polished by the sanding belt 28.

[0030] To ensure that the driven pulley 6 can rotate on the mounting support frame 13 while the sanding belt 28 is rotating, a polishing method combining self-rotation and revolute rotation can be adopted to ensure polishing efficiency and effect. The inner side wall of the worktable 1 is equipped with a rotating mechanism to facilitate the rotation of the driven pulley 6. The rotating mechanism includes a fixed plate 15 welded to the inner side wall of the worktable 1. A drive motor 16 is bolted to the fixed plate 15. A drive pulley 17 is fixedly mounted to the output end of the drive motor 16 via a coupling. The drive pulley 17 and the driven pulley 6 are connected by a belt 18. The drive motor 16 operates, and with the cooperation of the drive pulley 17 and the belt 18, it drives the driven pulley 6 to rotate, which in turn works with the abrasive belt 28 to perform a polishing process on the pipe fittings by rotation and revolute. Through the cooperation of the polishing components and the rotating mechanism, on the one hand, it can ensure that the abrasive belt is in close contact with the pipe fittings during the polishing process, ensuring the polishing effect. On the other hand, the use of rotation and revolute polishing methods can greatly improve the quality and efficiency of polishing. The operation is simple, there is no polishing difficulty, and even untrained operators can use it to complete the polishing normally, with low skill requirements for operators.

[0031] Please see Figures 1-8 To facilitate further polishing of the pipe fittings and ensure polishing quality and efficiency, the workbench 1 is equipped with two polishing structures via a lifting mechanism. The lifting mechanism includes a storage box 14 inside the workbench 1, which houses multiple hydraulic telescopic rods 22 (two or four sets, ensuring the stability of the lifting plate 8 during telescopic movement). The output ends of the hydraulic telescopic rods 22 are connected to the lifting plate 8, which has an adjustable tilting component for better fitting with the pipe fittings and ensuring polishing effectiveness. The polishing structure includes a polishing motor 7 fixed to the mounting block 25. The output end of the polishing motor 7 is connected to a polishing wheel 12 via a coupling for polishing the pipe fittings. To facilitate… For tilt angle adjustment, the tilting component includes a rectangular plate 27 welded to the lifting plate 8. One side of the top of the rectangular plate 27 is rotatably connected to the mounting block 25 via a rotating rod 26. Rotating blocks 24 are welded to the bottom of the polishing motor 7 and the top of the lifting plate 8. The rotating ends of the two rotating blocks 24 are connected to the two ends of the electric push rod 23. The electric push rod 23 can be extended and retracted, and the angle of the polishing motor 7 and the polishing wheel 12 can be tilted by the rotating rod 26, so as to fit with the pipe and ensure the polishing effect. The height and tilt angle of the polishing structure can be easily adjusted according to the polishing needs, so as to better fit with the surface of the pipe during the polishing process and ensure the polishing effect. In addition, the two sets of polishing structures can polish two surfaces at the same time, improving the polishing efficiency.

[0032] Please see Figures 1-8To prevent dust and impurities from scattering during processing, two sets of baffles 5 are vertically welded to the top of the workbench 1 to block dust generated during polishing. To ensure the blocking effect, the baffles 5 can be U-shaped and sealed at the top. The workbench 1 is equipped with a collection mechanism to collect and process polishing components and polishing structures. The collection mechanism includes a collection box 19 fixed to the inner side wall of the workbench 1 by bolts. The collection box 19 is equipped with an exhaust fan (the principle is the same as a vacuum cleaner, a relatively mature technology, which will not be described in detail here). Two collection pipes 11 connected to the inside are symmetrically arranged at the top of the collection box 19. The collection pipes 11 are located on both sides below the sanding belt 28, with the tops inclined and equipped with collection ports 20 to facilitate the collection of dust generated during polishing. The top of the collection box 19 is also equipped with a connecting pipe 21, which runs through the workbench 1 below the two polishing wheels 12 and is also equipped with a collection port 20. This allows for the collection of dust generated during polishing, preventing it from scattering into the workshop and the outside, creating a more comfortable and safe working environment.

[0033] When polishing the pipe fitting, the fitting is inserted into the insert rod 30. At this time, the elastic air reservoir 32 is inflated through the air inflator 31. The L-shaped anti-slip part 33 and the elastic anti-slip pad 34 help to position and fix the fitting. The robotic arm 3 moves freely, carrying the fitting, and inserts it between the two sanding belts 28, into the through hole of the driven pulley 6. The hydraulic telescopic rod 22 extends and retracts, moving the lifting plate 8 up and down to adjust the position between the polishing wheel 12 and the fitting. Furthermore, the electric push rod 23 extends and retracts, adjusting the polishing wheel in conjunction with the rotating block 24 and the rotating rod 26. The tilt angle of 12 allows it to fit more closely to the surface of the pipe, ensuring the polishing effect. It can also move and tilt the pipe through the main body 3 of the robotic arm for better polishing. The polishing motor 29 drives the sanding belt wheel 10 to rotate, and the adjusting wheel 9 ensures that the sanding belt 28 fits the workpiece. At this time, the sanding belt 28 rotates, and the drive motor 16 works. Under the action of the active belt pulley 17 and belt 18, the driven belt pulley 6 rotates on the mounting support frame 13. This can realize a polishing method of self-rotation and rotation, which can improve polishing efficiency and ensure polishing quality.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A polishing machine for pipe fittings with irregular cross-sections, comprising a worktable (1) and a robotic arm body (3), characterized in that: One side of the workbench (1) is fixedly connected to the main body of the robotic arm (3) via a mounting plate (2). The main body of the robotic arm (3) is provided with a fixing mechanism that matches the pipe fitting. The workbench (1) is provided with a driven pulley (6) via a mounting support frame (13). A through hole is opened in the middle of the mounting support frame (13) and the driven pulley (6). The workbench (1) is provided with a rotating mechanism that matches the driven pulley (6). Polishing components are symmetrically provided on the side of the driven pulley (6) close to the fixing mechanism. Baffles (5) that match the polishing components are symmetrically provided on the workbench (1). A polishing structure is provided on the side of the workbench (1) away from the main body of the robotic arm (3) via a lifting mechanism. Both the polishing components and the polishing structure match the pipe fitting. The workbench (1) is provided with a collecting mechanism that matches the polishing components and the polishing structure. The polishing assembly includes a sanding belt wheel (10) mounted on the driven pulley (6), an adjusting wheel (9) between the two sanding belt wheels (10), the two sanding belt wheels (10) and the adjusting wheel (9) are arranged in a triangle and connected to each other by a sanding belt (28), one of the sanding belt wheels (10) is connected to the output end of a polishing motor (29), and the two sets of polishing assemblies on the side wall of the driven pulley (6) are symmetrical about the center of the driven pulley (6); The fixing mechanism includes a circular plate (4) fixedly connected to the main body (3) of the robotic arm. A rod (30) is horizontally fixed on the side wall of the circular plate (4). An elastic air bladder (32) matching the inner wall of the tube is sleeved on the outer side of the rod (30) away from the circular plate (4). An inflation tube (31) communicating with the elastic air bladder (32) is provided on the circular plate (4). The elastic air reservoir (32) has L-shaped anti-slip parts (33) at the corners of its periphery, and elastic anti-slip pads (34) are provided at equal intervals on its periphery. The lifting mechanism includes a storage box (14) symmetrically arranged in the workbench (1), and hydraulic telescopic rods (22) are equidistantly arranged in the storage box (14). The output ends of the hydraulic telescopic rods (22) are all provided with a lifting plate (8). The lifting plate (8) is connected to the polishing structure through an inclined component. The tilting assembly includes a rectangular plate (27) disposed on the lifting plate (8), and one end of the rectangular plate (27) is rotatably provided with a mounting block (25) via a rotating rod (26). The mounting block (25) is fixedly connected to the polishing structure. The polishing structure includes a polishing motor 2 (7) fixedly mounted on the mounting block (25), and the output end of the polishing motor 2 (7) is provided with a polishing wheel (12).

2. The polishing machine for pipe fittings with irregular cross-sections according to claim 1, characterized in that: The rotating mechanism includes a fixed plate (15) on the inner side wall of the workbench (1), a drive motor (16) is provided on the fixed plate (15), and an active pulley (17) is provided at the output end of the drive motor (16). The active pulley (17) and the driven pulley (6) are connected by a belt (18).

3. The polishing machine for pipe fittings with irregular cross-sections according to claim 2, characterized in that: The tilting assembly also includes an electric push rod (23) disposed between the polishing motor (7) and the lifting plate (8). One end of the electric push rod (23) is connected to the lifting plate (8) through a rotating block (24), and the other end is connected to the bottom end of the polishing motor (7) through the rotating block (24).

4. A polishing machine for pipe fittings with irregular cross-sections according to claim 3, characterized in that: The collection mechanism includes a collection box (19) set on the inner side wall of the workbench (1). The collection box (19) is symmetrically provided with collection pipes (11). The collection pipes (11) pass through the workbench (1) and extend to the top to provide a collection port (20) that matches the sanding belt (28). The top of the collection box (19) is also provided with a connecting pipe (21). The connecting pipe (21) passes through the workbench (1) and extends to the top to provide a collection port (20) that matches the polishing wheel (12).

Images