A new type of polishing head

Abstract

The utility model relates to a novel polishing grinding head belongs to the technical field of the auxiliary tool of pipe inner surface polishing. The problem that the polishing size and abrasive density cannot be adjusted in the prior art is solved. Including: grinding base, fastening pad, locking nut and abrasive, and the abrasive is detachably installed on the grinding base through the fastening pad and locking nut, the grinding base includes connecting rod, seat body and screw rod, the connecting rod is connected with the left side of seat body, and the screw rod is connected with the right side of seat body, the locking nut is in threaded connection with the screw rod, and the locking nut is used for clamping the abrasive between the seat body and fastening pad. The utility model is used for the inner surface polishing of pipe. Through using the abrasive of different lengths, the pipe of different diameters can be polished, and through installing different numbers of abrasives, the polishing amount each time can be controlled.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary tools for polishing the inner surface of pipes, and in particular to a novel polishing head. Background Technology

[0002] With industrial development and progress, manufacturing enterprises, especially those producing high-precision equipment, have higher requirements for their raw material procurement, such as high dimensional accuracy and smooth, defect-free surfaces. This has led pipe manufacturing and processing companies to continuously improve the requirements for pipe dimensions and surface finish to meet market demands. During the rolling or drawing process, defects such as rolling marks, pitting, scratches, dents, and indentations are unavoidable. To address these defects, companies typically use internal and external polishing methods. Existing polishing heads are usually made of nylon fibers, non-woven fabric, or abrasive-reinforced cloth bonded together to form a cylindrical structure, which is then fixed to a metal shaft. However, these existing polishing heads have significant limitations: firstly, their fixed size necessitates frequent replacement when polishing pipes of different specifications; secondly, the abrasive hardness cannot be adjusted, making it difficult to flexibly adapt to different grinding and polishing needs. Utility Model Content

[0003] To address the problems of existing technologies where grinding size and abrasive hardness cannot be adjusted, the purpose of this invention is to provide a more economical polishing head for internal pipe polishing, offering better compatibility with different inner diameters and adjustable polishing amounts. A brief overview of this invention is provided below to offer a basic understanding of certain aspects. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit its scope. To address the aforementioned problems, the purpose of this invention is to provide a novel polishing head.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A novel polishing head includes: a grinding base 1, a fastening pad 2, a locking nut 3, and an abrasive 4. The abrasive 4 is detachably mounted on the grinding base 1 via the fastening pad 2 and the locking nut 3. The grinding base 1 includes a connecting rod 11, a seat body 12, and a screw 13. The connecting rod 11 is connected to the left side of the seat body 12, and the screw 13 is connected to the right side of the seat body 12. The locking nut 3 is threadedly connected to the screw 13 and is used to clamp the abrasive 4 between the seat body 12 and the fastening pad 2.

[0006] Furthermore, the seat 12 is a cylindrical structure with an opening on one side, and the opening of the seat 12 faces the fastening pad 2; the screw 13 is connected to the bottom of the cylinder inside the seat 12.

[0007] Furthermore, the fastening pad 2 is a circular plate structure; the fastening pad 2 has a through hole 21, and the screw 13 passes through the through hole 21.

[0008] Furthermore, the connecting rod 11, the seat 12, the screw 13, and the fastening pad 2 are coaxial.

[0009] Furthermore, the grinding base 1, the fastening pad 2, and the locking nut 3 are all made of metal.

[0010] Furthermore, the inner edge of the opening of the seat 12 is rounded.

[0011] Furthermore, the edge of the fastening pad 2 near the abrasive 4 is chamfered.

[0012] Furthermore, the chamfer of the fastening pad 2 and the inner edge of the opening of the seat 12 clamp the abrasive 4.

[0013] Furthermore, the abrasive 4 is a flexible material.

[0014] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0015] (1) This utility model includes a grinding base, a fastening washer, a locking nut, and abrasive. The abrasive is detachably mounted on the grinding base via the fastening washer and the locking nut. When installing the abrasive, tightening the locking nut drives the fastening washer toward the grinding base, thereby firmly pressing the abrasive between them. When it is necessary to replace the abrasive, simply loosen the locking nut to increase the gap between the fastening washer and the grinding base, and the old abrasive can be removed and the new abrasive installed. The abrasive of this utility model adopts a detachable connection method, which facilitates the replacement of abrasives of different materials, thereby meeting the grinding needs of different requirements.

[0016] (2) This utility model adopts a connection method of clamping abrasive with grinding base and fastening pad, which makes it convenient to adjust the amount of abrasive used, and then adjust the grinding intensity according to actual needs, without having to replace the entire grinding head, thus improving the flexibility and efficiency of grinding operation.

[0017] (3) This utility model uses a grinding base and a fastening pad to fix the abrasive, which makes it easy to adjust the length of the abrasive and thus can be adapted to pipes with different inner diameters. It effectively solves the problem of fixed size and frequent replacement of traditional grinding heads, expands the application range of grinding heads, and reduces equipment investment costs.

[0018] (4) This utility model has a simple structure and is easy to operate. It is more economical than traditional grinding heads and is very suitable for companies that extrude, roll or draw pipes. Moreover, it avoids the use of industrial glue compared to existing technologies, making it more environmentally friendly. At the same time, the abrasive of this utility model is made of soft material, which makes it safer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a novel polishing head according to this utility model;

[0020] Figure 2 This is an exploded view of a novel polishing head according to this utility model.

[0021] In the attached diagram: 1. Grinding base; 11. Connecting rod; 12. Base body; 13. Screw; 2. Fastening washer; 21. Through hole; 3. Locking nut; 4. Abrasive. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0023] Please refer to Figure 1 and Figure 2 As shown, a novel polishing head is illustrated, comprising: a grinding base 1, a fastening pad 2, a locking nut 3, and an abrasive 4. The abrasive 4 is detachably mounted on the grinding base 1 via the fastening pad 2 and the locking nut 3. The grinding base 1 includes a connecting rod 11, a seat body 12, and a screw 13. The connecting rod 11 is connected to the left side of the seat body 12, and the screw 13 is connected to the right side of the seat body 12. The locking nut 3 is threadedly connected to the screw 13 and is used to clamp the abrasive 4 between the seat body 12 and the fastening pad 2. The connecting rod 11 has a cylindrical structure and can be matched and installed on the output end of a straight grinder, an electric drill, or an air grinder.

[0024] Furthermore, in a preferred embodiment, the seat 12 is a cylindrical structure with an opening on one side, and the opening of the seat 12 faces the fastening pad 2; the screw 13 is connected to the center of the bottom of the cylinder inside the seat 12, and the connecting rod 11 is connected to the center of the outer wall of the bottom of the cylinder of the seat 12; the opening of the seat 12 is used to insert the abrasive 4, and the abrasive 4 extends to the outside of the seat 12, and the fastening pad 2 clamps the abrasive 4 by the locking nut 3.

[0025] Furthermore, in a preferred embodiment, the fastening pad 2 is a circular plate structure; a through hole 21 is provided on the fastening pad 2, and the screw 13 passes through the through hole 21; the through hole 21 is located at the center of the fastening pad 2.

[0026] Furthermore, in a preferred embodiment, the diameter of the fastening pad 2 is less than or equal to the diameter of the outer periphery of the seat 12.

[0027] The base 12 is designed as a cylindrical structure with an opening on one side. The groove formed inside allows for the insertion of the abrasive 4. Before being tightened with the fastening pad 2, the side wall of the base 12 provides some restraint for the abrasive 4, making its placement more stable. Compared to using two parallel surfaces for clamping, this design is easier to install and less prone to falling off. When installing the abrasive 4, the opening of the base 12 can be oriented upwards for easier placement.

[0028] Furthermore, in a preferred embodiment, the connecting rod 11, the seat 12, the screw 13, and the fastening pad 2 are coaxial, which can ensure dynamic balance during rotation.

[0029] Furthermore, in a preferred embodiment, the grinding base 1, the fastening pad 2, and the locking nut 3 are all made of metal. Using metal materials ensures the strength of the structure, such as using 45# steel.

[0030] Furthermore, in a preferred embodiment, the inner edge of the opening of the seat 12 is rounded to prevent sharp edges from cutting the abrasive 4.

[0031] Furthermore, in a preferred embodiment, the edge of the fastening pad 2 near the abrasive 4 is chamfered to prevent the sharp edge from cutting the abrasive 4.

[0032] Furthermore, in a preferred embodiment, the chamfer of the fastening pad 2 clamps the abrasive 4 with the inner edge of the opening of the base 12. After installation, the multiple abrasives 4 form a converging structure tilted to the right, which effectively avoids uneven working surface during operation compared to the problem of left and right scattering caused by using two parallel planes to clamp the abrasives 4.

[0033] Furthermore, in a preferred embodiment, the abrasive 4 is a flexible material, preferably a scouring pad, nylon fiber, non-woven fabric, abrasive cloth, or sandpaper. In use, the abrasive 4 can be cut into different shapes to meet specific needs.

[0034] Working principle:

[0035] In use, first, place the fastening washer 2 onto the screw 13, then install the locking nut 3 on the screw 13. Tighten the locking nut 3 to move the fastening washer 2 closer to the base 12 until a certain gap is left. Then, evenly insert multiple pieces of abrasive 4 along the circumference of the base 12 into the gap. Next, continue to tighten the locking nut 3 to firmly press the abrasive 4. After installation, the abrasive 4, fastening washer 2, and locking nut 3 are arranged from left to right. Then, connect the connecting rod 11 to the output end of the straight grinder, then insert the polishing head into the metal tube to be polished, and turn on the straight grinder to start polishing. When it is necessary to replace the abrasive 4, simply loosen the locking nut 3 to increase the gap between the fastening washer 2 and the grinding base 12, then remove the old abrasive 4 and install the new abrasive 4.

[0036] In summary, the abrasive 4 of this invention is pressed onto the grinding base 1 by the fastening pad 2 and locked by the locking nut 3. The type and quantity of the abrasive 4 can be adjusted according to grinding requirements. The abrasive 4 is obtained by cutting, and its size can be customized according to the size of the inner hole to be ground. This invention has the advantages of simple operation, convenience, versatility, and low manufacturing cost, making it very suitable for pipe manufacturing and processing enterprises and some manufacturing plants. In addition, the abrasive 4 is not bonded with glue, has a softer texture, and is safe and environmentally friendly.

[0037] By using abrasive particles 4 of different lengths, pipes of different diameters can be polished. By installing different numbers of abrasive particles 4, the polishing amount per polishing pass can be controlled. Furthermore, for pipes with similar inner diameters, it is not necessary to replace the abrasive particles 4, because the abrasive particles 4 are made of flexible material and can flexibly adjust their shape to follow the slight changes in the inner diameter of the pipe during the rotation of the device, maintaining a close fit to the inner wall.

[0038] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel polishing head, characterized in that: The device includes a grinding base (1), a fastening pad (2), a locking nut (3), and an abrasive (4). The abrasive (4) is detachably mounted on the grinding base (1) via the fastening pad (2) and the locking nut (3). The grinding base (1) includes a connecting rod (11), a seat body (12), and a screw (13). The connecting rod (11) is connected to the left side of the seat body (12), and the screw (13) is connected to the right side of the seat body (12). The locking nut (3) is threadedly connected to the screw (13), and the locking nut (3) is used to clamp the abrasive (4) between the seat body (12) and the fastening pad (2).

2. The novel polishing head according to claim 1, characterized in that: The seat (12) is a cylindrical structure with an opening on one side, and the opening of the seat (12) faces the fastening pad (2); the screw (13) is connected to the bottom of the cylinder inside the seat (12).

3. A novel polishing head according to claim 2, characterized in that: The fastening pad (2) is a circular plate structure; a through hole (21) is provided on the fastening pad (2), and the screw (13) passes through the through hole (21).

4. A novel polishing head according to claim 3, characterized in that: The connecting rod (11), the seat (12), the screw (13) and the fastening pad (2) are coaxial.

5. A novel polishing head according to claim 1, characterized in that: The grinding base (1), the fastening pad (2), and the locking nut (3) are all made of metal.

6. A novel polishing head according to claim 3, characterized in that: The inner edge of the opening of the seat (12) is rounded.

7. A novel polishing head according to claim 6, characterized in that: The edge of the fastening pad (2) near the abrasive (4) is chamfered.

8. A novel polishing head according to claim 7, characterized in that: The chamfer of the fastening pad (2) and the inner edge of the opening of the seat (12) clamp the abrasive (4).

9. A novel polishing head according to any one of claims 1 to 8, characterized in that: The abrasive (4) is a flexible material.

Images