Metal product inner wall polishing device

Abstract

The utility model relates to the technical field of metal product inner wall polishing, and discloses a metal product inner wall polishing device which comprises a hollow base, a protective shell with the two ends open and a plurality of polishing rollers, and a plurality of connecting shafts are rotationally mounted on the top side of the interior of the base through a plurality of bearings; the multiple polishing rollers can be driven by the stepping motor to synchronously rotate, so that the multiple metal round pipes can be polished at the same time, the situation that workers need to manually polish the metal round pipes is avoided, meanwhile, the working efficiency of the device is improved, and the protective shell is movably arranged on the base, so that the protective shell is more convenient to use. And meanwhile, due to the fact that the polishing roller is movably arranged on the connecting shaft, a worker can maintain and replace the polishing roller conveniently in the follow-up process, and the using flexibility of the whole device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of polishing the inner wall of a metal product, and in particular to a device for polishing the inner wall of a metal product. Background Art

[0002] Metal products are manufactured by mechanical equipment that modifies the outer dimensions and properties of metal materials according to specifications. There are many types of metal products, and after metal tubes are manufactured, they are polished using polishing equipment to reduce the roughness of the inner tubes and remove attached impurities to improve their usability. Traditional methods of polishing metal tubes are somewhat inconvenient. For example, some small workshops generally polish the inner walls of metal tubes manually. This method is convenient for polishing small quantities of metal tubes, but it affects overall production efficiency for mass production, making it difficult to meet the market's demand for rapid product supply. Utility Model Content

[0003] In order to solve the problems raised by the above background technology, the present application provides a device for polishing the inner wall of a metal product.

[0004] The present application provides a metal product inner wall polishing device adopting the following technical solution:

[0005] A device for polishing the inner wall of a metal product comprises a hollow base, a protective shell with open ends, and a plurality of polishing rollers;

[0006] A plurality of connecting shafts are rotatably mounted on the top side of the base via a plurality of bearings, and a stepper motor is fixedly mounted on the bottom side of the base. The stepper motor is transmission-connected to the plurality of connecting shafts via a drive assembly.

[0007] The protective shell is arranged on the upper surface of the base, and a fixed plate is fixedly installed on the inner side wall of the protective shell. A plurality of circular grooves are formed through the upper surface of the fixed plate. A plurality of first curved plates located inside the circular grooves are provided on the side wall of the fixed plate through a plurality of adjustment components. A second curved plate used in conjunction with the first curved plates is fixedly installed on the inner side wall of the circular groove through a connecting rod.

[0008] The polishing roller is located between the adjacent first and second arc-shaped plates. The bottom end of the polishing roller is connected to the connecting shaft via a fixing assembly. A metal round tube is provided on the side wall of the polishing roller.

[0009] Preferably, the driving assembly includes a driving gear and multiple driven gears, the driving gear is fixedly connected to the output end of the stepper motor, the multiple driven gears are respectively fixedly connected to the bottom ends of the multiple connecting shafts, and the driven gears are meshed with the driving gear.

[0010] Preferably, the adjustment assembly includes a threaded rod, which is threadedly mounted on the side wall of the fixed plate, one end of the threaded rod is rotatably connected to the side wall of the first arc-shaped plate, and the other end of the threaded rod rotates through the side wall of the protective shell and extends to the outside.

[0011] Preferably, the end of the threaded rod extending to the outside of the protective shell is fixedly connected to a knob, and a limiting rod is symmetrically fixedly connected to the outer wall of the first curved plate. The end of the limiting rod away from the first curved plate moves through the fixed plate and the side wall of the protective shell and extends to the outside.

[0012] Preferably, the fixing assembly includes a fixing bolt and an insertion rod, the insertion rod is fixedly connected to the bottom end of the polishing roller, the top of the connecting shaft is provided with a slot that slides with the insertion rod, the fixing bolt is threadedly installed on the side wall of the connecting shaft, and the side wall of the insertion rod is provided with a threaded hole that threads with the fixing bolt.

[0013] Preferably, a guide ring is fixedly connected to the lower surface of the protective shell, an annular groove that slides with the guide ring is provided on the upper surface of the base, a first magnetic ring is fixedly connected to the lower surface of the guide ring, and a second magnetic ring that is magnetically attracted to the first magnetic ring is fixedly installed inside the annular groove.

[0014] Preferably, rubber pads are fixedly mounted on opposite sides of the first curved plate and the second curved plate.

[0015] Preferably, through holes for dissipating heat from the stepper motor and connecting to external circuits are symmetrically provided on the side walls of the base.

[0016] In summary, this application has the following beneficial technical effects:

[0017] Compared with the existing technology, the device has a stepper motor that can drive multiple polishing rollers to rotate synchronously, so that multiple metal round tubes can be polished at the same time, which not only avoids the need for staff to manually polish the metal round tubes, but also improves the working efficiency of the device. Moreover, since the protective shell is movably set on the base, the protective shell can be removed later to clean the debris after polishing. At the same time, since the polishing roller is also movably set on the connecting shaft, it is also convenient for staff to repair and replace the polishing roller later, thereby improving the flexibility of the overall device in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the application;

[0019] Figure 2 is a schematic cross-sectional structural diagram of the base and protective shell of an embodiment of the application;

[0020] Figure 3 is a schematic structural diagram of an adjustment component according to an embodiment of the application;

[0021] Figure 4 2. It is a schematic structural diagram of the first magnetic ring and the second magnetic ring of the embodiment of the application;

[0022] Figure 5 is a schematic structural diagram of a drive assembly according to an embodiment of the application;

[0023] Figure 6 It is a structural schematic diagram of the fixing component of the embodiment of the application.

[0024] Explanation of the accompanying symbols: 1. Base; 2. Protective shell; 3. Polishing roller; 4. Metal round tube; 5. Knob; 6. Limit rod; 7. Through hole; 8. Stepper motor; 9. Guide ring; 10. Fixed disk; 11. Threaded rod; 12. Driving gear; 13. Driven gear; 14. Circular groove; 15. Connecting rod; 16. First curved plate; 17. Second curved plate; 18. Rubber pad; 19. First magnetic ring; 20. Second magnetic ring; 21. Connecting shaft; 22. Insert rod; 23. Slot; 24. Fixing bolt; 25. Annular groove. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-6 This application is described in further detail.

[0026] The embodiment of the present application discloses a device for polishing the inner wall of a metal product. Figure 1-6A device for polishing the inner wall of a metal product comprises a hollow base 1, a protective shell 2 with open ends, and a plurality of polishing rollers 3. A plurality of connecting shafts 21 are rotatably mounted on the top side of the base 1 through a plurality of bearings. A stepper motor 8 is fixedly mounted on the bottom side of the base 1. The stepper motor 8 is connected to the plurality of connecting shafts 21 through a driving assembly. The driving assembly comprises a driving gear 12 and a plurality of driven gears 13. The driving gear 12 is fixedly connected to the output end of the stepper motor 8. The plurality of driven gears 13 are respectively fixedly connected to the bottom ends of the plurality of connecting shafts 21. The driven gears 13 are connected to the driving gears 12 and the output end of the stepper motor 8. The wheels 12 are engaged, the protective shell 2 is set on the upper surface of the base 1, and the lower surface of the protective shell 2 is fixedly connected to the guide ring 9. The upper surface of the base 1 is provided with an annular groove 25 that slides with the guide ring 9. The lower surface of the guide ring 9 is fixedly connected to the first magnetic ring 19. The inside of the annular groove 25 is fixedly installed with a second magnetic ring 20 that is magnetically attracted to the first magnetic ring 19. The inner wall of the protective shell 2 is fixedly installed with a fixed disk 10. The upper surface of the fixed disk 10 is penetrated by a plurality of circular grooves 14. The side wall of the fixed disk 10 is provided with a plurality of first arc plates 16 located inside the circular grooves 14 through multiple groups of adjustment components. The adjustment assembly includes a threaded rod 11, which is threadedly mounted on the side wall of the fixed disk 10. One end of the threaded rod 11 is rotatably connected to the side wall of the first curved plate 16. The other end of the threaded rod 11 rotates through the side wall of the protective shell 2 and extends to the outside. The end of the threaded rod 11 extending to the outside of the protective shell 2 is fixedly connected to the knob 5. The outer wall of the first curved plate 16 is symmetrically fixedly connected to the limit rod 6. The end of the limit rod 6 away from the first curved plate 16 is movable through the fixed disk 10 and the side wall of the protective shell 2 and extends to the outside. The inner wall of the circular groove 14 is fixedly mounted with a connecting rod 15. The second curved plate 17 is used in conjunction with the first curved plate 16, and the polishing roller 3 is located between the adjacent first curved plate 16 and the second curved plate 17. The bottom end of the polishing roller 3 is connected to the connecting shaft 21 through a fixing assembly. The fixing assembly includes a fixing bolt 24 and an insert rod 22. The insert rod 22 is fixedly connected to the bottom end of the polishing roller 3. The top of the connecting shaft 21 is provided with a slot 23 that slides with the insert rod 22. The fixing bolt 24 is threadedly installed on the side wall of the connecting shaft 21. The side wall of the insert rod 22 is provided with a threaded hole that threadably cooperates with the fixing bolt 24. A metal round tube 4 is provided on the side wall of the polishing roller 3.

[0027] The implementation principle of the metal product inner wall polishing device of the embodiment of the present application is as follows: the electrical components appearing in the present application are all connected to the power supply and the control switch when in use. When in use, the insertion rod 22 at the bottom end of the polishing roller 3 is inserted into the slot 23 on the connecting shaft 21, and the polishing roller 3 can be installed on the connecting shaft 21 by rotating the fixing bolt 24 so that one end thereof extends into the threaded hole. Similarly, multiple polishing rollers 3 can be installed on multiple connecting shafts 21 respectively. The protective shell 2 is placed just above the base 1 and then moved downward, so that the protective shell 2 is The guide ring 9 can be inserted into the annular groove 25 on the base 1. When the first magnetic ring 19 and the second magnetic ring 20 are fitted together, the protective shell 2 can be installed on the base 1. Then the staff inserts the metal tube 4 to be polished from top to bottom on the polishing roller 3, and the metal tube 4 can be moved between the first curved plate 16 and the second curved plate 17. When the metal tube 4 moves to the appropriate position, the threaded rod 11 can be driven to rotate by rotating the knob 5, and the threaded rod 11 can drive the first curved plate 16 to move toward the direction of the metal tube 4. The first curved plate 16 and the second curved plate 17 can clamp and fix the metal round tube 4, and the normal movement of the first curved plate 16 can be ensured by the limit rod 6. Similarly, multiple metal round tubes 4 can be fixed on the outer walls of multiple polishing rollers 3 respectively. By starting the stepping motor 8, the driving gear 12 can be driven to rotate, and the driving gear 12 can drive multiple driven gears 13 to rotate synchronously. The driven gear 13 can drive the polishing roller 3 to rotate through the connecting shaft 21, so that the inner wall of the metal round tube 4 can be polished. In this process, the stepping motor 8 can drive multiple polishing rollers 3 to rotate synchronously, so that multiple metal round tubes 4 can be polished at the same time, which not only avoids the need for staff to manually polish the metal round tube 4, but also improves the working efficiency of the device. Moreover, since the protective shell 2 is movably set on the base 1, the protective shell 2 can be removed later to clean the debris after polishing. At the same time, since the polishing roller 3 is also movably set on the connecting shaft 21, it is also convenient for staff to repair and replace the polishing roller 3 later, thereby improving the flexibility of the overall device in use.

[0028] Reference Figure 3 A rubber pad 18 is fixedly installed on the opposite side of the first curved plate 16 and the second curved plate 17. The rubber pad 18 can improve the fixing effect of the first curved plate 16 and the second curved plate 17 on the metal tube 4.

[0029] Reference Figure 1 and Figure 2 The side wall of the base 1 is symmetrically provided with through holes 7 for dissipating heat from the stepping motor 8 and connecting to external circuits.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0031] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0033] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A device for polishing the inner wall of a metal product, characterized in that: It comprises a hollow base (1), a protective shell (2) with both ends open, and a plurality of polishing rollers (3); A plurality of connecting shafts (21) are rotatably mounted on the top side of the base (1) via a plurality of bearings, a stepping motor (8) is fixedly mounted on the bottom side of the base (1), and the stepping motor (8) is transmission-connected to the plurality of connecting shafts (21) via a driving assembly; The protective shell (2) is arranged on the upper surface of the base (1), and a fixed plate (10) is fixedly installed on the inner side wall of the protective shell (2), and a plurality of circular grooves (14) are opened through the upper surface of the fixed plate (10). A plurality of first arc-shaped plates (16) located inside the circular grooves (14) are arranged on the side wall of the fixed plate (10) through a plurality of adjustment components, and a second arc-shaped plate (17) used in conjunction with the first arc-shaped plate (16) is fixedly installed on the inner side wall of the circular groove (14) through a connecting rod (15); The polishing roller (3) is located between the adjacent first arc-shaped plate (16) and the second arc-shaped plate (17); the bottom end of the polishing roller (3) is connected to the connecting shaft (21) via a fixing assembly; and a metal round tube (4) is provided on the side wall of the polishing roller (3).

2. A metal product inner wall polishing device according to claim 1, characterized in that: The driving assembly comprises a driving gear (12) and a plurality of driven gears (13), wherein the driving gear (12) is fixedly connected to the output end of the stepping motor (8), and the plurality of driven gears (13) are respectively fixedly connected to the bottom ends of the plurality of connecting shafts (21), and the driven gears (13) are meshed with the driving gear (12).

3. The metal product inner wall polishing device according to claim 1, characterized in that: The adjustment assembly includes a threaded rod (11), which is threadedly mounted on the side wall of the fixed plate (10), one end of the threaded rod (11) is rotatably connected to the side wall of the first arc-shaped plate (16), and the other end of the threaded rod (11) rotates through the side wall of the protective shell (2) and extends to the outside.

4. The metal product inner wall polishing device according to claim 3, characterized in that: One end of the threaded rod (11) extending to the outside of the protective shell (2) is fixedly connected to a knob (5); a limiting rod (6) is symmetrically fixedly connected to the outer wall of the first curved plate (16); the end of the limiting rod (6) away from the first curved plate (16) is movable through the fixed plate (10) and the side wall of the protective shell (2) and extends to the outside.

5. The metal product inner wall polishing device according to claim 1, characterized in that: The fixing assembly includes a fixing bolt (24) and an insert rod (22), the insert rod (22) is fixedly connected to the bottom end of the polishing roller (3), the top end of the connecting shaft (21) is provided with a slot (23) that is slidably matched with the insert rod (22), the fixing bolt (24) is threadedly mounted on the side wall of the connecting shaft (21), and the side wall of the insert rod (22) is provided with a threaded hole that is threadedly matched with the fixing bolt (24).

6. The metal product inner wall polishing device according to claim 1, characterized in that: The lower surface of the protective shell (2) is fixedly connected to a guide ring (9), the upper surface of the base (1) is provided with an annular groove (25) that is slidably matched with the guide ring (9), the lower surface of the guide ring (9) is fixedly connected to a first magnetic ring (19), and a second magnetic ring (20) that is magnetically attracted to the first magnetic ring (19) is fixedly installed inside the annular groove (25).

7. The metal product inner wall polishing device according to claim 1, characterized in that: A rubber pad (18) is fixedly mounted on one side opposite to the first curved plate (16) and the second curved plate (17).

8. The metal product inner wall polishing device according to claim 1, characterized in that: Through holes (7) for dissipating heat from the stepping motor (8) and connecting to external circuits are symmetrically provided on the side walls of the base (1).

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