Polishing device for inner wall of stainless steel socket welding pipe fitting

By designing a stainless steel socket weld pipe fitting inner wall polishing device with a fixed base, a fixing mechanism, and a debris collection mechanism, the problem of polishing debris collection has been solved, realizing automated polishing and efficient debris collection, and improving the efficiency of stainless steel pipe fitting inner wall polishing.

CN224255042UActive Publication Date: 2026-05-19SHANDONG XINJIE STAINLESS STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG XINJIE STAINLESS STEEL CO LTD
Filing Date
2025-04-10
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing stainless steel socket weld pipe fitting inner wall polishing equipment is inefficient because it is difficult to collect debris during polishing and grinding.

Method used

A device was designed that includes a fixed base, a stainless steel socket weld pipe fitting fixing mechanism, a debris collection mechanism, and a stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism. The fixing mechanism stabilizes the pipe fitting, the polishing mechanism automatically grinds the pipe fitting, and the debris collection mechanism collects the polishing debris.

Benefits of technology

The system enables automated polishing of the inner wall of stainless steel socket weld pipe fittings, improving polishing efficiency and effectively collecting polishing debris, thus enhancing the grinding effect.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a stainless steel socket welded pipe fitting inner wall polishing device which comprises a fixing base and a positioning block, a stainless steel socket welded pipe fitting fixing mechanism is fixedly installed on the rear portion of the outer wall of the fixing base, and a scrap collecting mechanism is installed on the front portion of the outer surface of the stainless steel socket welded pipe fitting fixing mechanism in a welded mode. The positioning block is welded and mounted on one side of the outer wall of the fixed base, and a stainless steel socket welding pipe fitting inner wall polishing and grinding mechanism is fixedly mounted on one side of the outer wall of the positioning block. According to the polishing device for the inner wall of the stainless steel socket and spigot welded pipe fitting, the stainless steel socket and spigot welded pipe fitting fixing mechanism is arranged, and meanwhile, the scrap collecting mechanism is arranged in a matched mode, so that when the angle of the stainless steel socket and spigot welded pipe fitting is adjusted, scraps generated by polishing and grinding the inner wall of the stainless steel socket and spigot welded pipe fitting can directly fall on the inner wall of a limiting groove; and therefore, the water can fall into the inner wall of the limiting groove to be collected.
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Description

Technical Field

[0001] This utility model relates to the technical field of stainless steel pipe processing, specifically to a polishing device for the inner wall of stainless steel socket weld pipe fittings. Background Technology

[0002] Stainless steel pipe fittings are a type of pipe fitting made of stainless steel, hence the name. They include stainless steel elbows, tees, crosses, reducers, and caps. Based on the connection method, they can be divided into four categories: socket-type stainless steel pipe fittings, threaded stainless steel pipe fittings, flanged stainless steel pipe fittings, and welded stainless steel pipe fittings. Stainless steel elbows are used where pipes bend; flanges are used to connect pipes to each other. Currently, stainless steel pipe fittings require polishing of their inner walls during processing, but the efficiency of this polishing is relatively low. Therefore, we propose a stainless steel socket-welded pipe fitting inner wall polishing device.

[0003] Currently used stainless steel socket weld pipe fitting inner wall polishing equipment is not convenient for collecting debris from the inner wall of the stainless steel socket weld pipe fitting during polishing, which affects the polishing result and results in low efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a polishing device for the inner wall of stainless steel socket weld pipe fittings, so as to solve the problem mentioned in the background art that the currently used polishing devices for the inner wall of stainless steel socket weld pipe fittings are not easy to collect during polishing, which affects the polishing results of stainless steel socket weld pipe fittings and results in low efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel socket weld pipe fitting inner wall polishing device, comprising a fixed base and a positioning block, wherein a stainless steel socket weld pipe fitting fixing mechanism is fixedly installed on the rear of the outer wall of the fixed base, and a debris collection mechanism is welded to the front of the outer surface of the stainless steel socket weld pipe fitting fixing mechanism; the positioning block is welded to one side of the outer wall of the fixed base, and a stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism is fixedly installed on one side of the outer wall of the positioning block.

[0006] Preferably, the stainless steel socket weld pipe fixing mechanism includes a side plate, a first drive motor, a first rotating shaft, a turntable, a threaded positioning rod, a connecting rod, an extrusion block, and a threaded cap. The side plates are all fixedly installed behind the outer wall of the fixed base. The first drive motor is fixedly installed in front of the outer wall of the side plate. The output end of the first drive motor is provided with a first rotating shaft. A turntable of matching size is provided in front of the outer wall of the first rotating shaft. A threaded positioning rod is welded and installed on one side of the outer wall of the turntable. Connecting rods are connected and installed on both sides of the outer wall of the turntable. An extrusion block is movably connected to the outer surface of the connecting rod. A threaded cap of matching size is provided on the outer surface of the threaded positioning rod.

[0007] Preferably, the threaded cap is threadedly connected to the turntable via a threaded positioning rod, and the outer wall of the threaded positioning rod is in close contact with the inner wall of the threaded cap.

[0008] Preferably, the debris collection mechanism includes a side positioning plate, an opening groove, and a limiting groove. The side positioning plate is welded and installed in front of the outer surface of the turntable. An opening groove is provided on one side of the inner wall of the side positioning plate, and a limiting groove is provided in front of the outer wall of the side positioning plate.

[0009] Preferably, the stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism includes a hydraulic cylinder, a hydraulic rod, a push block, a second drive motor, a second rotating shaft, and a grinding rod. The hydraulic cylinder is fixedly installed on one side of the outer wall of the positioning block. The output end of the hydraulic cylinder is provided with a hydraulic rod. One side of the outer wall of the hydraulic rod is provided with a push block of matching size. One side of the outer wall of the push block is fixedly installed with a second drive motor. The output end of the second drive motor is provided with a second rotating shaft. The outer surface of the second rotating shaft is provided with a grinding rod of matching size.

[0010] Preferably, the propulsion block forms a telescopic structure with a hydraulic rod and a hydraulic cylinder, and the outer wall of the hydraulic rod is in close contact with the inner wall of the propulsion block.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This stainless steel socket weld pipe fitting inner wall polishing device, by setting a stainless steel socket weld pipe fitting fixing mechanism and simultaneously setting a stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism, can automatically polish and grind the stainless steel socket weld pipe fitting, and can adjust the polishing and grinding depth of the stainless steel socket weld pipe fitting, without the need for manual adjustment of the angle of the stainless steel socket weld pipe fitting. This allows for automatic switching between different stainless steel socket weld pipe fittings, thereby accelerating the polishing and grinding rate of the inner wall of the stainless steel socket weld pipe fitting.

[0013] 2. The stainless steel socket weld pipe fitting inner wall polishing device, by setting a stainless steel socket weld pipe fitting fixing mechanism and a debris collection mechanism, allows the debris from polishing the inner wall of the stainless steel socket weld pipe fitting to fall directly onto the inner wall of the limiting groove when the angle of the stainless steel socket weld pipe fitting is adjusted, and thus fall into the inner wall of the limiting groove for collection. Attached Figure Description

[0014] Figure 1 This is a front view of the present utility model;

[0015] Figure 2 This is a diagram of the fixing mechanism for the stainless steel socket weld pipe fitting of this utility model;

[0016] Figure 3 This is a diagram of the debris collection mechanism of this utility model;

[0017] Figure 4 This is a diagram of the polishing and grinding mechanism for the inner wall of the stainless steel socket weld pipe fitting of this utility model.

[0018] In the diagram: 1. Fixed base; 2. Stainless steel socket weld pipe fitting fixing mechanism; 201. Side plate; 202. First drive motor; 203. First rotating shaft; 204. Turntable; 205. Threaded positioning rod; 206. Connecting rod; 207. Extrusion block; 208. Threaded cap; 3. Debris collection mechanism; 301. Side positioning plate; 302. Groove; 303. Limiting groove; 4. Positioning block; 5. Stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism; 501. Hydraulic cylinder; 502. Hydraulic rod; 503. Pushing block; 504. Second drive motor; 505. Second rotating shaft; 506. Grinding rod. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4This utility model provides a technical solution: a stainless steel socket weld pipe fitting inner wall polishing device, including a fixed base 1 and a positioning block 4. A stainless steel socket weld pipe fitting fixing mechanism 2 is fixedly installed on the rear of the outer wall of the fixed base 1. The stainless steel socket weld pipe fitting fixing mechanism 2 includes a side plate 201, a first drive motor 202, a first rotating shaft 203, a turntable 204, a threaded positioning rod 205, a connecting rod 206, a pressing block 207, and a threaded cap 208. The side plates 201 are all fixedly installed on the rear of the outer wall of the fixed base 1. The first drive motor 202 is fixedly installed on the front of the outer wall of the side plates 201. The output end of the first drive motor 202 is provided with a first rotating shaft 203. A turntable 204 of matching size is provided on the front of the outer wall of the first rotating shaft 203. A threaded positioning rod 205 is welded and installed on one side of the front of the outer wall of the turntable 204. Connecting rods 206 are connected and installed on both sides of the front of the outer wall of the turntable 204. The stainless steel socket weld pipe fitting is movably connected to the extrusion block 207. The outer surface of the threaded positioning rod 205 is provided with a threaded cap 208 of matching size. The stainless steel socket weld pipe fitting is placed at the center of the turntable 204. At the same time, the connecting rod 206 can support and abut against the edge of the stainless steel socket weld pipe fitting. The extrusion block 207 is moved to move on the surface of the connecting rod 206. The threaded cap 208 is rotated to rotate on the outer surface of the threaded positioning rod 205. This can drive the extrusion block 207 to extrude and fix the surface of the stainless steel socket weld pipe fitting. The threaded cap 208 is threadedly connected to the turntable 204 through the threaded positioning rod 205. The outer wall of the threaded positioning rod 205 is tightly fitted with the inner wall of the threaded cap 208. This can extrude and fix the position of the extrusion block 207 on the connecting rod 206. At the same time, the stainless steel socket weld pipe fitting abuts against the fixed side, which can stably fix the position of the socket weld pipe fitting.

[0021] A debris collection mechanism 3 is welded and installed on the front of the outer surface of the stainless steel socket weld pipe fitting fixing mechanism 2. The debris collection mechanism 3 includes a side positioning plate 301, an opening groove 302, and a limiting groove 303. The side positioning plate 301 is welded and installed on the front of the outer surface of the turntable 204. An opening groove 302 is opened on one side of the inner wall of the side positioning plate 301, and a limiting groove 303 is opened on the front of the outer wall of the side positioning plate 301. When the grinding rod 506 moves in a telescopic motion, it extends from the inner wall of the opening groove 302 into the inner wall of the stainless steel socket weld pipe fitting. In this way, when the stainless steel socket weld pipe fitting rotates, the debris can fall directly from the inner wall of the stainless steel socket weld pipe fitting and fall into the inner wall of the limiting groove 303 for collection.

[0022] The positioning block 4 is welded and installed on one side of the outer wall of the fixed base 1. A stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism 5 is fixedly installed on one side of the outer wall of the positioning block 4. The stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism 5 includes a hydraulic cylinder 501, a hydraulic rod 502, a push block 503, a second drive motor 504, a second rotating shaft 505, and a grinding rod 506. The hydraulic cylinder 501 is fixedly installed on one side of the outer wall of the positioning block 4. The output end of the hydraulic cylinder 501 is provided with a hydraulic rod 502. A push block 503 of matching size is provided on one side of the outer wall of the hydraulic rod 502. A second drive motor 504 is fixedly installed on one side of the outer wall of the push block 503. The output end of the second drive motor 504 is provided with a second rotating shaft 505. A grinding rod 506 of matching size is provided on the outer surface of the second rotating shaft 505. When the power to the hydraulic cylinder 501 is turned on, it drives the push block 503 installed on the outer wall of the hydraulic rod 502 to extend and retract, thus moving the grinding rod 506 left and right, allowing it to rest against... Within the inner wall of the stainless steel socket weld pipe fitting, the power to the second drive motor 504 is turned on, causing it to rotate the grinding rod 506 mounted on the outer wall of the second rotating shaft 505. This enables automated polishing of the inner wall of the stainless steel socket weld pipe fitting. The power to the first drive motor 202 is turned on, causing the turntable 204 mounted on the outer wall of the first rotating shaft 203 to rotate. This allows adjustment of the angle of the stainless steel socket weld pipe fitting fixed on one side of the first rotating shaft 203, enabling automated switching between different pipes within the stainless steel socket weld pipe fitting for polishing. The push block 503 forms a telescopic structure with the hydraulic rod 502 and the hydraulic cylinder 501, with the outer wall of the hydraulic rod 502 closely fitting the inner wall of the push block 503. This allows automated adjustment of the left and right position of the grinding rod 506 fixed on one side of the push block 503, resulting in uniform polishing of the inner wall of the stainless steel socket weld pipe fitting.

[0023] Working principle: First, place the device in the designated position, and place the stainless steel socket weld pipe fitting at the center of the turntable 204. Simultaneously, the connecting rod 206 supports and abuts the edge of the stainless steel socket weld pipe fitting. Move the pressing block 207 to move on the surface of the connecting rod 206. Rotate the threaded cap 208 to rotate on the outer surface of the threaded positioning rod 205. This causes the pressing block 207 to press and fix the surface of the stainless steel socket weld pipe fitting. Turn on the power to the hydraulic cylinder 501, causing it to move the push block 503 mounted on the outer wall of the hydraulic rod 502 to extend and retract. This causes the grinding rod 506 to move left and right, bringing it closer to the inner wall of the stainless steel socket weld pipe fitting. Turn on the power to the second drive motor 504, causing it to rotate the grinding rod 506 mounted on the outer wall of the second rotating shaft 505. The rotating motion allows for automated polishing of the inner wall of stainless steel socket weld pipe fittings. By turning on the first drive motor 202, it drives the turntable 204 mounted on the outer wall of the first rotating shaft 203 to rotate. This allows for adjustment of the angle of the stainless steel socket weld pipe fitting fixed to one side of the first rotating shaft 203, enabling automated switching between different pipes within the stainless steel socket weld pipe fitting. During the extension and retraction of the polishing rod 506, it penetrates deep into the inner wall of the stainless steel socket weld pipe fitting through the groove 302. As the stainless steel socket weld pipe fitting rotates, debris falls directly from its inner wall and is collected within the limiting groove 303. This completes the operation of a stainless steel socket weld pipe fitting inner wall polishing device.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for polishing the inner wall of a socket of a stainless steel socket and spigot welded pipe, characterized in that, It includes a fixed base (1) and a positioning block (4). A stainless steel socket weld pipe fitting fixing mechanism (2) is fixedly installed on the rear of the outer wall of the fixed base (1). A debris collection mechanism (3) is welded to the front of the outer surface of the stainless steel socket weld pipe fitting fixing mechanism (2). The positioning block (4) is welded to one side of the outer wall of the fixed base (1). A stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism (5) is fixedly installed on one side of the outer wall of the positioning block (4).

2. A device for polishing the inner wall of a stainless steel socketed welded pipe fitting according to claim 1, characterized in that: The stainless steel socket weld pipe fitting fixing mechanism (2) includes a side plate (201), a first drive motor (202), a first rotating shaft (203), a turntable (204), a threaded positioning rod (205), a connecting rod (206), an extrusion block (207), and a threaded cap (208). The side plates (201) are all fixedly installed behind the outer wall of the fixed base (1), and the first drive motor (202) is fixedly installed in front of the outer wall of the side plates (201). The first drive motor (202) outputs power to the pipes. The outlet is provided with a first rotating shaft (203), and a turntable (204) of matching size is provided in front of the outer wall of the first rotating shaft (203). A threaded positioning rod (205) is welded and installed on one side of the outer wall of the turntable (204). Connecting rods (206) are connected and installed on both sides of the outer wall of the turntable (204). An extrusion block (207) is movably connected to the outer surface of the connecting rod (206). A threaded cap (208) of matching size is provided on the outer surface of the threaded positioning rod (205).

3. A device for polishing the inner wall of a stainless steel socketed welded pipe fitting according to claim 2, wherein: The threaded cap (208) is threadedly connected to the turntable (204) via a threaded positioning rod (205), and the outer wall of the threaded positioning rod (205) is tightly fitted to the inner wall of the threaded cap (208).

4. A device for polishing the inner wall of a stainless steel socketed welded pipe fitting according to claim 2, characterized in that: The debris collection mechanism (3) includes a side positioning plate (301), an opening groove (302), and a limiting groove (303). The side positioning plate (301) is welded and installed on the front of the outer surface of the turntable (204). The opening groove (302) is provided on one side of the inner wall of the side positioning plate (301), and the limiting groove (303) is provided on the front of the outer wall of the side positioning plate (301).

5. A device for polishing the inner wall of a stainless steel socketed welded pipe fitting according to claim 1, wherein: The stainless steel socket weld pipe fitting inner wall polishing and grinding mechanism (5) includes a hydraulic cylinder (501), a hydraulic rod (502), a push block (503), a second drive motor (504), a second rotating shaft (505), and a grinding rod (506). The hydraulic cylinder (501) is fixedly installed on one side of the outer wall of the positioning block (4). The output end of the hydraulic cylinder (501) is provided with a hydraulic rod (502). The outer wall of the hydraulic rod (502) is provided with a push block (503) of matching size. The outer wall of the push block (503) is fixedly installed with a second drive motor (504). The output end of the second drive motor (504) is provided with a second rotating shaft (505). The outer surface of the second rotating shaft (505) is provided with a grinding rod (506) of matching size.

6. A device for polishing the inner wall of a stainless steel socketed pipe fitting according to claim 5, wherein: The propelling block (503) is in telescopic structure with the hydraulic cylinder (501) through the hydraulic rod (502), and the outer wall of the hydraulic rod (502) is tightly combined with the inner wall of the propelling block (503).