A convenient stainless steel pipe inner wall grinding device

Abstract

This utility model relates to the field of pipe inner wall grinding technology, specifically a convenient stainless steel pipe inner wall grinding device, comprising: a support, a motor mounted on one side of the support, and a pipe body mounted on the other side of the support; a grinding structure mounted on the support, the grinding structure including a rotating shaft, the rotating shaft being movably mounted on the upper end of the support via bearings, a movable groove being formed at the right end of the rotating shaft, a threaded rod being movably mounted on the inner side of the movable groove via bearings, a nut being welded to the middle of the threaded rod, movable blocks being movably mounted at the upper and lower ends of the threaded rod via threads, and deflection arms being movably mounted at the two ends of the movable blocks via rotating shafts. This utility model, by setting a rotatable grinding block, allows adjustment of the contact surface between the grinding block and the inner wall of the pipe body, thereby improving the utilization rate of the grinding block, reducing replacement costs, and improving the economic benefits of the enterprise.

Description

Technical Field

[0001] This utility model relates to the field of pipe inner wall grinding technology, specifically a stainless steel pipe inner wall grinding device that facilitates grinding. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, and food processing. As a type of pipe, stainless steel pipe has strict requirements for the smoothness and defect-free nature of its inner surface. Therefore, in most cases, the inner surface of finished stainless steel pipe needs to be ground to ensure the smoothness of the inner surface of the finished pipe and reduce or eliminate defects.

[0003] In response, Chinese patent application number CN202321187683.7 discloses a metal pipe inner wall grinding device, comprising: a grinding body, a grinding block overlapping the surface of the grinding body, a top holding plate rotatably connected to the surface of the grinding body, a guide block provided on the surface of the grinding block, and the guide block slidably connected to the surface of the top holding plate; an integral plate disposed on the surface of the top holding plate, a limiting rod movably inserted into the surface of the integral plate, and one end of the limiting rod movably inserted into one side of the grinding body; the beneficial effect is that the rotation of the rotating rod drives the top holding plate to rotate, the rotation of the top holding plate drives the guide block sliding on its surface to move, and the movement of the guide block drives the grinding block to slide along the surface of the side groove, so that the distance between the grinding block and the center of the grinding body can be adjusted, which is convenient for grinding metal pipes of different sizes.

[0004] The device uses a top support plate to push the grinding block to fit against the inner wall of the pipe. However, the curvature of the grinding block is fixed. During processing, only the part near the middle of the surface will contact the inner wall of the pipe. Therefore, only a part of the grinding block can play a grinding role. After the part is worn, the whole block needs to be replaced, which is wasteful and increases the production cost of enterprises.

[0005] Therefore, in order to solve the above problems, a stainless steel pipe inner wall grinding device that is convenient for grinding is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a convenient stainless steel pipe inner wall grinding device to solve the problem mentioned in the background art. The device can push the grinding block to fit against the inner wall of the pipe by setting a top holding plate. However, the curvature of the grinding block is fixed. During processing, only the part near the middle of the surface will contact the inner wall of the pipe. Therefore, only a part of the grinding block can play a grinding role. After the part is worn, the whole block needs to be replaced, which is wasteful and increases the production cost of enterprises.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel pipe inner wall grinding device that is easy to grind, comprising: a bracket, a motor installed on one side of the bracket, and a pipe body provided on the other side of the bracket;

[0008] A grinding structure is mounted on the bracket. The grinding structure includes a rotating shaft, which is movably mounted on the upper end of the bracket via a bearing. A movable groove is provided at the right end of the rotating shaft. A threaded rod is movably mounted on the inner side of the movable groove via a bearing. A nut is welded to the middle of the threaded rod. Movable blocks are movably mounted at the upper and lower ends of the threaded rod via threads. Deflection arms are movably mounted at both ends of the movable blocks via a rotating shaft. Guide grooves are provided on the surface of the deflection arms. Guide posts are welded to the inner wall of the movable groove. A telescopic rod is slidably mounted on the inner side of the end of the deflection arm. A spring is fixedly connected to the inner wall of the deflection arm. A grinding block is movably mounted on the end of the telescopic rod. A rectangular retaining strip is inserted into the end of the telescopic rod. A threaded bolt is rotatably connected to the inner side of the end of the rectangular retaining strip.

[0009] Preferably, the output end of the motor is fixedly connected to the rotating shaft.

[0010] Preferably, the movable block is slidably mounted on the inner side of the movable groove.

[0011] Preferably, the guide post passes through the deflection arm via a guide groove.

[0012] Preferably, the end of the telescopic rod protrudes from the end of the deflection arm, and one end of the spring is fixedly connected to the telescopic rod.

[0013] Preferably, the rectangular clip passes through the grinding block, and the end of the threaded bolt is threadedly connected to the surface of the telescopic rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting a rotatable grinding block, the contact surface between the grinding block and the inner wall of the pipe body can be adjusted by rotating the grinding block, so as to improve the utilization rate of the grinding block, reduce the replacement cost, and improve the economic benefits of the enterprise.

[0015] This invention features a grinding structure. One end of the pipe body is fitted onto the outside of a rotating shaft. Rotating the nut with a wrench rotates the threaded rod. A movable block is slidably mounted inside a movable groove. The threaded rod is threadedly connected to the movable block. When the threaded rod rotates, it drives two sets of movable blocks to move up and down within the movable groove. As the two sets of movable blocks move away from each other, they can move the deflection arm. A guide post is slidably mounted inside a guide groove. The guide post, in conjunction with the guide groove, restricts the movement of the deflection arm, allowing it to deflect at a fixed angle. This causes the telescopic rod at the end of the deflection arm to approach the inner wall of the pipe body. Consequently, the grinding block adheres to the inner wall of the pipe body. The pipe body then reacts against the telescopic rod, causing the deflection arm and telescopic rod to compress the spring. The grinding block, under the elastic action of the spring, can tightly adhere to the inner wall of the pipe body. Starting the motor drives the rotating shaft to rotate, which in turn causes the grinding block to rotate circumferentially on the inner wall of the pipe body, thus grinding the inner wall of the pipe body. When the grinding block is partially worn, rotating the threaded bolt can release the threaded connection between the threaded bolt and the end of the telescopic rod. Pulling the threaded bolt will remove the rectangular retaining strip from the telescopic rod and the grinding block, thus releasing the limiting position of the grinding block at the end of the telescopic rod. Rotating the grinding block can adjust the contact surface between the grinding block and the inner wall of the pipe body, allowing other parts of the grinding block to be used to grind the inner wall of the pipe body. This improves the utilization rate of the grinding block, reduces replacement costs, and improves the economic benefits of the enterprise. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model;

[0018] Figure 3 This is a front sectional view of the structure of the movable groove of this utility model;

[0019] Figure 4 This is an exploded cross-sectional view of the rotating shaft of this utility model.

[0020] Figure 5 This is an exploded view of the deflection arm of this utility model.

[0021] In the diagram: 1. Bracket; 11. Motor; 12. Pipe body; 2. Grinding structure; 21. Rotating shaft; 22. Movable groove; 23. Threaded rod; 24. Nut; 25. Movable block; 26. Deflection arm; 27. Guide groove; 28. Guide post; 29. ​​Telescopic rod; 210. Spring; 211. Grinding block; 212. Rectangular retaining strip; 213. Threaded bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 An embodiment of a convenient stainless steel pipe inner wall grinding device provided by this utility model:

[0024] The bracket (1), motor (11) and pipe body (12) used in this application are products that can be purchased directly on the market. Their principles and connection methods are existing technologies known to those skilled in the art, so they will not be described in detail here.

[0025] A stainless steel pipe inner wall grinding device that is easy to grind includes: a bracket 1, a motor 11 installed on one side of the bracket 1, and a pipe body 12 provided on the other side of the bracket 1.

[0026] A grinding structure 2 is mounted on the support 1. The grinding structure 2 includes a rotating shaft 21, which is movably mounted on the upper end of the support 1 via bearings. A movable groove 22 is provided at the right end of the rotating shaft 21. A threaded rod 23 is movably mounted on the inner side of the movable groove 22 via bearings. A nut 24 is welded to the middle of the threaded rod 23. Movable blocks 25 are movably mounted at the upper and lower ends of the threaded rod 23 via threads. Deflection arms 26 are movably mounted at both ends of the movable blocks 25 via rotating shafts. Guide grooves 27 are provided on the surface of the deflection arms 26. A guide groove 27 is welded to the inner wall of the movable groove 22. A guide post 28 is connected to the inner side of the deflection arm 26, and a telescopic rod 29 is slidably installed on the inner side of the end. A spring 210 is fixedly connected to the inner wall of the deflection arm 26. A grinding block 211 is movably installed at the end of the telescopic rod 29. A rectangular retaining strip 212 is inserted into the end of the telescopic rod 29. A threaded bolt 213 is rotatably connected to the inner side of the end of the rectangular retaining strip 212. By rotating the grinding block 211, the contact surface between the grinding block 211 and the inner wall of the pipe body 12 can be adjusted to improve the utilization rate of the grinding block 211, reduce replacement costs, and improve the economic benefits of the enterprise.

[0027] Furthermore, the output end of the motor 11 is fixedly connected to the rotating shaft 21, and the motor 11 provides power for the rotation of the rotating shaft 21.

[0028] Furthermore, the movable block 25 is slidably installed inside the movable groove 22, and the rotation of the threaded rod 23 can drive the movable block 25 to move inside the movable groove 22.

[0029] Furthermore, the guide post 28 passes through the deflection arm 26 via the guide groove 27, and the guide post 28, in conjunction with the guide groove 27, provides a limit for the deflection angle of the deflection arm 26.

[0030] Furthermore, the end of the telescopic rod 29 protrudes from the end of the deflection arm 26, and one end of the spring 210 is fixedly connected to the telescopic rod 29. The spring 210 provides power for the grinding block 211 to adhere to the inner wall of the pipe body 12, thereby preventing the grinding block 211 from damaging the inner wall of the pipe body 12.

[0031] Furthermore, the rectangular retaining strip 212 passes through the grinding block 211, and the end of the threaded bolt 213 is threadedly connected to the surface of the telescopic rod 29. The rectangular retaining strip 212 can provide a limit for the installation of the grinding block 211 at the end of the telescopic rod 29, and the threaded bolt 213 can provide a fixation for the installation of the rectangular retaining strip 212 at the end of the telescopic rod 29.

[0032] Working principle: Before grinding, one end of the pipe body 12 is fitted onto the outside of the rotating shaft 21. Using a wrench to rotate the nut 24, the threaded rod 23 rotates. The movable block 25 is slidably installed inside the movable groove 22. The threaded rod 23 is threadedly connected to the movable block 25. When the threaded rod 23 rotates, it drives the two sets of movable blocks 25 to move up and down within the movable groove 22. The two sets of movable blocks 25 move away from each other, which can drive the deflection arm 26 to move. The guide post 28 is slidably installed inside the guide groove 27. The guide post 28, in conjunction with the guide groove 27, restricts the movement of the deflection arm 26, allowing the deflection arm 26 to be fixed. A fixed angle of deflection is made so that the telescopic rod 29 at the end of the deflection arm 26 approaches the inner wall of the pipe body 12, thereby making the grinding block 211 fit against the inner wall of the pipe body 12. The pipe body 12 can react to the telescopic rod 29, so that the deflection arm 26 and the telescopic rod 29 compress the spring 210. The grinding block 211 can then fit tightly against the inner wall of the pipe body 12 under the elastic action of the spring 210. Starting the motor 11 can drive the rotating shaft 21 to rotate, and the rotating shaft 21 will drive the grinding block 211 to rotate circumferentially on the inner wall of the pipe body 12, thereby grinding the inner wall of the pipe body 12.

[0033] When the grinding block 211 is partially worn, rotating the threaded bolt 213 can release the threaded connection between the threaded bolt 213 and the end of the telescopic rod 29. Pulling the threaded bolt 213 can pull the rectangular retaining strip 212 out of the telescopic rod 29 and the grinding block 211, thus releasing the limiting position of the grinding block 211 at the end of the telescopic rod 29. Rotating the grinding block 211 can adjust the contact surface between the grinding block 211 and the inner wall of the pipe body 12, so that other parts of the grinding block 211 can be used to grind the inner wall of the pipe body 12, thereby improving the utilization rate of the grinding block 211, reducing replacement costs, and improving the economic benefits of the enterprise.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A device for conveniently polishing the inner wall of a stainless steel pipe, comprising: A bracket (1) is provided with a motor (11) on one side and a pipe body (12) on the other side. Its features are: A grinding structure (2) is installed on the bracket (1). The grinding structure (2) includes a rotating shaft (21). The rotating shaft (21) is movably mounted on the upper end of the bracket (1) via a bearing. A movable groove (22) is provided at the right end of the rotating shaft (21). A threaded rod (23) is movably mounted on the inner side of the movable groove (22) via a bearing. A nut (24) is welded to the middle of the threaded rod (23). Movable blocks (25) are movably mounted on the upper and lower ends of the threaded rod (23) via threads. The two ends of the movable blocks (25) are movably mounted on the rotating shaft. The device is equipped with a deflection arm (26), the surface of which is provided with a guide groove (27), a guide post (28) is welded on the inner wall of the movable groove (22), a telescopic rod (29) is slidably installed on the inner side of the end of the deflection arm (26), a spring (210) is fixedly connected to the inner wall of the deflection arm (26), a grinding block (211) is movably installed on the end of the telescopic rod (29), a rectangular clip (212) is inserted into the end of the telescopic rod (29), and a threaded bolt (213) is rotatably connected to the inner side of the end of the rectangular clip (212).

2. A device for conveniently polishing the inner wall of a stainless steel pipe according to claim 1, characterized in that: The output end of the motor (11) is fixedly connected to the rotating shaft (21).

3. A device for conveniently polishing the inner wall of a stainless steel pipe according to claim 1, characterized in that: The movable block (25) is slidably mounted on the inside of the movable slot (22).

4. A device for conveniently polishing the inner wall of a stainless steel pipe according to claim 1, characterized in that: The guide post (28) passes through the deflection arm (26) via the guide groove (27).

5. A convenient to use stainless steel pipe inner wall polishing device as claimed in claim 1, wherein: The end of the telescopic rod (29) protrudes from the end of the deflection arm (26), and one end of the spring (210) is fixedly connected to the telescopic rod (29).

6. A convenient to use stainless steel pipe inner wall polishing device as claimed in claim 1 wherein: The rectangular clip (212) passes through the grinding block (211), and the end of the threaded bolt (213) is threaded to the surface of the telescopic rod (29).

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