Cylindrical steel pipe inner wall grinding device

Abstract

The utility model relates to the technical field of steel pipe inner walls, and discloses a cylindrical steel pipe inner wall polishing device which comprises a device body, the device body comprises a polishing device and a limiting device, the polishing device is arranged above the device body, the limiting device is arranged below the polishing device, the limiting device is arranged below a workbench, and the limiting device is arranged below the workbench. The grinding device is arranged above the workbench and comprises a supporting table, a grinding rotating rod, a collecting rod, an electric telescopic rod, a motor, a fixing shaft, a connecting block, a threaded rod and a connecting rod, and the motor is fixedly connected to the lower portion of the supporting table. An electric telescopic rod is driven by a motor to stretch out and draw back up and down to adjust the position of a grinding rotating rod, the grinding rotating rod is cylindrical and can grind the interior of a cylindrical steel pipe without dead corners, the motor drives the grinding rotating rod to grind the cylindrical steel pipe, and grinding waste is brought into a gap between collecting rods through rotation; and waste in gaps of the collecting rods is cleaned by detaching the threaded rods.

Description

Technical Field

[0001] The utility model relates to the technical field of the inner wall of steel pipes, in particular to a grinding device for the inner wall of a cylindrical steel pipe. Background Technique

[0002] The grinding device for the inner wall of a steel pipe is a device used for cleaning and trimming the inner wall of a steel pipe. It is usually composed of special machinery and can operate automatically or semi-automatically. It is mainly used to remove welding slag, rust, scale deposits, etc. on the inner wall of the steel pipe to improve the quality and smoothness of the steel pipe. The power for providing the rotation of the grinding brush head or grinding wheel can be achieved by using an electric motor or a hydraulic system. It is responsible for the grinding and polishing operations on the inner wall of the steel pipe and is usually made of special materials with wear resistance and appropriate hardness. It is used to control parameters such as the speed, force, and position of the grinding process, which can be controlled manually or automatically. It is used to install and support the grinding device to ensure its stable and precise movement on the inner wall of the steel pipe. Using the grinding device for the inner wall of a steel pipe can effectively solve problems such as unevenness, pollution, or defects on the inner surface of the steel pipe and improve the quality standard of the steel pipe. It is widely used in fields with high requirements for the inner wall of pipelines in industries such as petroleum, chemical industry, shipbuilding, and construction. The grinding device for the inner wall of a cylindrical steel pipe is a device used for grinding and processing the inside of a cylindrical steel pipe. This system is used to clamp and fix the steel pipe to be processed to ensure its accurate and stable position. Common clamping methods include fixtures and clamping blocks, etc. This system drives the grinding tool to rotate, providing cutting force and rotational speed to complete the grinding operation on the inner wall of the steel pipe. The main shaft system is usually composed of a motor, a transmission device, and main shaft bearings, etc. The grinding tool is a tool used for processing the inner wall of the steel pipe, and different types of grinding tools can be selected according to requirements, such as grinding wheels, abrasive belts, etc. The selection of the grinding tool should consider the material characteristics and processing requirements of the inner wall of the steel pipe. This system is used to control the movement trajectory of the grinding tool on the inner wall of the steel pipe to achieve precise control of the entire processing process. Common motion control methods include numerical control systems, servo systems, etc., which can achieve automated processing. Since a large amount of heat will be generated between the grinding tool and the processing surface during the high-speed rotation process, the cooling system is used to cool it to ensure the processing quality and stable operation of the equipment. To sum up, the grinding device for the inner wall of a cylindrical steel pipe is a device that fixes the steel pipe to be processed through a clamping system, drives the grinding tool to rotate through the main shaft system for grinding the inside of the steel pipe, controls the movement trajectory of the grinding tool through a motion control system, and is cooled by a cooling system at the same time. It is widely used in the field of inner wall grinding and processing of various cylindrical workpieces, such as pipelines, oil cylinders, etc.

[0003] A steel pipe inner wall grinding device with the publication number CN111702576A can increase the contact force between the grinding wheel and the inner wall of the steel pipe by applying elastic force to the first spiral spring when it is difficult for many existing devices to grind the inner wall of the steel pipe. Combining the meshing of the first rack and the second rack will cause the grinding wheel to slide on the inner wall of the steel pipe, grind the inner wall of the steel pipe, and increase the contact force between the grinding wheel and the inner wall of the steel pipe through the elastic force of the first spiral spring, increasing the friction between the grinding wheel and the steel pipe, which is convenient for cleaning the inner wall of the steel pipe.

[0004] However, in this patent, the waste materials after grinding are not easy to clean during use and are likely to cause environmental pollution. Utility Model Content

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present utility model provides a cylindrical steel pipe inner wall grinding device.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solution: A cylindrical steel pipe inner wall grinding device, including a device body, the device body includes a grinding device and a limiting device, the grinding device is arranged above the device body, the limiting device is arranged below the grinding device, the limiting device is arranged below the workbench, and the grinding device is arranged above the workbench.

[0009] Preferably, the grinding device includes a support platform, a grinding rotating rod, a collecting rod, an electric telescopic rod, a motor, a fixed shaft, a connecting block, a threaded rod, and a connecting rod. The motor is fixedly connected below the support platform, and the electric telescopic rod is electrically connected to the motor.

[0010] Preferably, the limiting device includes a fixed bracket, an opening, a telescopic fixed platform, a support rod, a card slot, an auxiliary platform, a limiting groove, a telescopic pull opening, and a steel bar. The opening is formed on the workbench, the limiting groove is arranged below the workbench, the telescopic fixed platform is inside the limiting groove, the telescopic fixed platform is slidably connected with the limiting groove, and the telescopic pull opening is formed on the telescopic fixed platform.

[0011] Preferably, the electric telescopic rod is rotatably connected to the connecting block, the connecting rod is fixedly connected to the connecting block, and the connecting rod is fixedly connected to the collecting rod.

[0012] Preferably, the collecting rod is fixedly connected to the threaded rod, the threaded rod is threadedly connected to the grinding rotating rod, and the fixed shaft is rotatably connected to the grinding rotating rod.

[0013] Preferably, the support rod is fixedly connected to the telescopic fixed platform, the support rod is fixedly connected to the fixed bracket, the auxiliary platform is movably connected to the fixed bracket, the card slot is opened inside the fixed bracket, and the auxiliary platform is clamped with the card slot.

[0014] Preferably, the steel bar is fixedly connected inside the telescopic fixed platform, and the steel bar has three sections.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides a grinding device for the inner wall of a cylindrical steel pipe, which has the following beneficial effects:

[0017] 1. For this grinding device for the inner wall of a cylindrical steel pipe, the position of the grinding rotating rod is adjusted up and down by driving the electric telescopic rod by a motor. The grinding rotating rod is cylindrical and can grind the inside of the cylindrical steel pipe without dead angles. The motor drives the grinding rotating rod to grind the cylindrical steel pipe, and the waste generated by grinding is brought into the gap between the collecting rods by rotation, and the waste inside the gap of the collecting rods is cleaned by disassembling the threaded rod.

[0018] 2. For this grinding device for the inner wall of a cylindrical steel pipe, steel bars are arranged inside the telescopic fixed platform, telescopic pulling openings are opened on the telescopic fixed platform at the overlapping positions of the steel bars, the telescopic fixed platform is connected to the limiting groove. When the telescopic fixed platform is expanded, the telescopic fixed platform will slide on the limiting groove, and the auxiliary platform is clamped with the card slot. When the fixed bracket is placed into the cylindrical steel pipe, the auxiliary platform plays a fixing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of the device body of a grinding device for the inner wall of a cylindrical steel pipe;

[0021] Figure 2 It is a schematic external structural diagram of a grinding device for the inner wall of a cylindrical steel pipe;

[0022] Figure 3 It is a schematic bottom structural diagram of a grinding device for the inner wall of a cylindrical steel pipe;

[0023] Figure 4 It is a schematic internal structural diagram of a grinding device for the inner wall of a cylindrical steel pipe;

[0024] Figure 5 It is a schematic structural diagram of a limiting device of a grinding device for the inner wall of a cylindrical steel pipe;

[0025] Figure 6 Schematic diagram of the fixed support structure of a grinding device for the inner wall of a cylindrical steel pipe

[0026] In the figure: 1. Device body; 11. Grinding device; 111. Support platform; 112. Grinding rotating rod; 113. Collection rod; 114. Electric telescopic rod; 115. Motor; 116. Fixed shaft; 117. Connecting block; 118. Threaded rod; 119. Connecting rod; 12. Limiting device; 121. Fixed support; 122. Opening; 123. Telescopic fixed platform; 124. Support rod; 125. Card slot; 126. Auxiliary platform; 127. Limiting groove; 128. Telescopic pull opening; 129. Steel bar; 3. Workbench Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments

[0028] Embodiment 1

[0029] As Figures 1-6 shown, the present invention provides a grinding device for the inner wall of a cylindrical steel pipe, including a device body 1. The device body 1 includes a grinding device 11 and a limiting device 12. The grinding device 11 is arranged above the device body 1, and the limiting device 12 is arranged below the grinding device 11. The grinding device 11 includes a support platform 111, a grinding rotating rod 112, a collection rod 113, an electric telescopic rod 114, a motor 115, a fixed shaft 116, a connecting block 117, a threaded rod 118, and a connecting rod 119. The motor 115 is fixedly connected to the lower part of the support platform 111. The electric telescopic rod 114 is electrically connected to the motor 115. The electric telescopic rod 114 is rotatably connected to the connecting block 117. The connecting rod 119 is fixedly connected to the connecting block 117. The connecting rod 119 is fixedly connected to the collection rod 113. The collection rod 113 is fixedly connected to the threaded rod 118. The threaded rod 118 is threadedly connected to the grinding rotating rod 112. The fixed shaft 116 is rotatably connected to the grinding rotating rod 112

[0030] In this embodiment, the position of the grinding rotating rod 112 is adjusted up and down by driving the electric telescopic rod 114 by the motor 115. The grinding rotating rod 112 is cylindrical and can grind the inside of the cylindrical steel pipe without dead angles. The motor 115 drives the grinding rotating rod 112 to grind the cylindrical steel pipe. The waste generated by grinding is rotated and brought into the gap between the collection rods 113. The waste inside the gap of the collection rod 113 is cleaned by disassembling the threaded rod 118

[0031] Embodiment 2

[0032] As Figures 1-6As shown in the figure, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the limiting device 12 includes a fixed bracket 121, an opening 122, a telescopic fixed table 123, a support rod 124, a card slot 125, an auxiliary table 126, a limiting groove 127, a telescopic pull opening 128, and a steel bar 129. The opening 122 is opened on the workbench 3, the limiting groove 127 is arranged below the workbench 3, the telescopic fixed table 123 is inside the limiting groove 127, the telescopic fixed table 123 is slidably connected with the limiting groove 127, the telescopic pull opening 128 is opened on the telescopic fixed table 123, the support rod 124 is fixedly connected with the telescopic fixed table 123, the support rod 124 is fixedly connected with the fixed bracket 121, the auxiliary table 126 is movably connected to the fixed bracket 121, the card slot 125 is opened inside the fixed bracket 121, the auxiliary table 126 is clamped with the card slot 125, and the steel bar 129 is fixedly connected inside the telescopic fixed table 123. The steel bar 129 has three sections.

[0033] In this embodiment, by arranging the steel bar 129 inside the telescopic fixed table 123, the telescopic pull opening 128 is opened on the telescopic fixed table 123 at the overlapping position of the steel bars 129. The telescopic fixed table 123 is connected with the limiting groove 127. When the telescopic fixed table 123 is expanded, the telescopic fixed table 123 will slide on the limiting groove 127, and the auxiliary table 126 is clamped with the card slot 125. When the fixed bracket 121 is placed into the cylindrical steel pipe, the auxiliary table 126 plays a fixing role.

[0034] Next, the working principle of the inner wall grinding device for a cylindrical steel pipe will be specifically described.

[0035] As Figures 1-6 shown, during use, the motor 115 drives the electric telescopic rod 114 to move up and down to adjust the position of the grinding rod 112. The grinding rod 112 is cylindrical and can grind the inside of the cylindrical steel pipe without dead angles. The motor 115 drives the grinding rod 112 to grind the cylindrical steel pipe. The grinding waste is carried into the gaps between the collecting rods 113 by rotation. The waste inside the gaps of the collecting rods 113 is cleaned by disassembling the threaded rod 118. By arranging the steel bar 129 inside the telescopic fixed table 123, the telescopic pull opening 128 is opened on the telescopic fixed table 123 at the overlapping position of the steel bars 129. The telescopic fixed table 123 is connected with the limiting groove 127. When the telescopic fixed table 123 is expanded, the telescopic fixed table 123 will slide on the limiting groove 127, and the auxiliary table 126 is clamped with the card slot 125. When the fixed bracket 121 is placed into the cylindrical steel pipe, the auxiliary table 126 plays a fixing role.

Claims

1. A cylindrical steel pipe inner wall grinding device, comprising a device body (1), characterized in that: The device body (1) includes a grinding device (11) and a limiting device (12). The grinding device (11) is arranged above the device body (1), the limiting device (12) is arranged below the grinding device (11), the limiting device (12) is arranged below the workbench (3), and the grinding device (11) is arranged above the workbench (3). The grinding device (11) includes a support platform (111), a grinding rotating rod (112), a collecting rod (113), an electric telescopic rod (114), a motor (115), a fixed shaft (116), a connecting block (117), a threaded rod (118), and a connecting rod (119). The motor (115) is fixedly connected below the support platform (111), and the electric telescopic rod (114) is electrically connected to the motor (115). The limiting device (12) includes a fixed bracket (121), an opening (122), a telescopic fixed platform (123), a support rod (124), a clamping groove (125), an auxiliary platform (126), a limiting groove (127), a telescopic pulling opening (128), and a steel bar (129). The opening (122) is formed on the workbench (3), the limiting groove (127) is arranged below the workbench (3), the telescopic fixed platform (123) is inside the limiting groove (127), the telescopic fixed platform (123) is slidably connected to the limiting groove (127), and the telescopic pulling opening (128) is formed on the telescopic fixed platform (123).

2. The inner wall grinding device for a cylindrical steel pipe according to claim 1, characterized in that: The electric telescopic rod (114) is rotatably connected to the connecting block (117), the connecting rod (119) is fixedly connected to the connecting block (117), and the connecting rod (119) is fixedly connected to the collecting rod (113).

3. The inner wall grinding device for a cylindrical steel pipe according to claim 1, characterized in that: The collecting rod (113) is fixedly connected to the threaded rod (118), the threaded rod (118) is threadedly connected to the grinding rotating rod (112), and the fixed shaft (116) is rotatably connected to the grinding rotating rod (112).

4. A cylindrical steel pipe inner wall grinding device according to claim 1, characterized in that: The support rod (124) is fixedly connected to the telescopic fixed platform (123), the support rod (124) is fixedly connected to the fixed bracket (121), the auxiliary platform (126) is movably connected to the fixed bracket (121), the clamping groove (125) is formed inside the fixed bracket (121), and the auxiliary platform (126) is clamped with the clamping groove (125).

5. A cylindrical steel pipe inner wall grinding device according to claim 1, characterized in that: The steel bar (129) is fixedly connected inside the telescopic fixed platform (123), and the steel bar (129) has three sections.

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