Steel pipe end groove surface detection device
By combining an electronically controlled gripper and multiple pressure sensors, the problem of wear on the detection components affecting accuracy was solved, enabling high-precision detection of the bevel surface of the steel pipe end.
Patent Information
- Application Number
- CN202520523552.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-24
AI Technical Summary
After prolonged use, existing steel pipe end bevel surface inspection devices suffer wear due to rolling friction between the inspection unit and the steel pipe under test, affecting the accuracy of the inspection results.
The system employs a combination of electrically controlled grippers and pressure sensors. The electrically controlled grippers are driven by an electrically controlled cylinder to clamp the steel pipe, and multiple sets of pressure sensors in a ring array structure are used to detect the bevel surface of the steel pipe end. The flatness of the bevel surface is determined by the difference in pressure values.
This effectively avoids wear and tear on the testing components, improves the accuracy of the testing results, and ensures the stability and reliability of the testing.
Smart Images

Figure CN223796017U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of detection device technology, specifically a steel pipe end bevel surface detection device. Background Technology
[0002] The steel pipe end bevel surface inspection device, as a specialized piece of equipment, focuses on comprehensively inspecting key elements such as the geometry, dimensional accuracy, and surface quality of the steel pipe end bevel. The application of this device aims to ensure that every bevel strictly conforms to established industry standards and technical requirements, thereby laying a solid foundation for the superior quality and performance of the steel pipe in the welding process and other subsequent processing stages. As a key tool for improving the overall quality of steel pipe products, this testing device plays an indispensable role in optimizing welding processes, enhancing product quality stability, and significantly improving production efficiency. For example, in the prior art represented by the reference document "A Steel Pipe End Bevel Surface Testing Device" (application number 202322293544.9), this utility model uses two movably mounted limit blocks on the mounting base. Each limit block has a groove, and each groove contains a limit spring. One end of each limit spring abuts against a pressure sensor located within the groove, and the other end abuts against a testing rod located within the groove. A driving assembly is used to drive the testing end to rotate around the axis of the steel pipe to be tested. This invention uses the opposing movement of limiting blocks to clamp two detection rods onto the outer and inner walls of the steel pipe end. Then, a drive assembly rotates the detection rods, causing the two detection parts to rotate along the bevel surface of the steel pipe end. The flatness of the bevel surface is determined by the pressure sensor readings. It is easy to operate and has high detection efficiency, effectively solving the problems of existing technologies. However, its structure still needs improvement, as detailed below:
[0003] In this scheme, the drive component of the device uses a detection rod and a pressure sensor to rotate and detect. However, rolling friction is formed between the detection part and the steel pipe to be tested. After long-term use, the detection part will wear down and affect the accuracy of the detection results. Therefore, a steel pipe end bevel surface detection device is needed to improve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a steel pipe end bevel surface inspection device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A steel pipe end bevel surface inspection device includes a mounting base, a controller mounted on the side wall of the mounting base, a guide rod mounted on the base surface of the mounting base, an electrically controlled gripper slidably connected to the outer wall of the guide rod, and a sliding rod slidably connected to the inner wall of the electrically controlled gripper.
[0007] One end of the slide rod is connected to the inner wall of the mounting base, and the other end of the slide rod is provided with a fixing plate. A pressure sensor is provided on the outer wall of the fixing plate. An electric cylinder is installed directly above the slide rod and on the outer wall of the mounting base. A fixing block is installed at one end of the electric cylinder, and the fixing block is installed on the outer wall of the electric gripper.
[0008] As a preferred embodiment of this utility model, the controller is connected to an electrically controlled gripper, a pressure sensor, and an electrically controlled cylinder via wires, and the connection method is an electrical connection.
[0009] As a preferred embodiment of this utility model, the controller is located on one side of the guide rod, and the guide rod is provided in two sets, each located on the inner wall of the mounting base.
[0010] In a preferred embodiment of this utility model, the guide rod is located directly below the slide rod, and the fixing plate is located inside the electric gripper.
[0011] As a preferred embodiment of this utility model, the pressure sensor is provided in multiple sets and is located on the outer wall of the fixed plate.
[0012] As a preferred embodiment of this utility model, the pressure sensor is a ring array structure, and the electronically controlled cylinder is located directly above the guide rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, a steel pipe end bevel surface detection device is used, and pressure sensors on the surface of the fixed plate are used to make contact between the steel pipe end and the fixed plate. The controller controls the electric gripper to clamp the steel pipe, and then the controller controls the electric cylinder to operate, so that one end of the electric cylinder applies a pulling force to the electric gripper through the fixed block, thereby causing the electric gripper to move the steel pipe to one side, so that the steel pipe end applies pressure to multiple pressure sensors at the same time. When the bevel surface of the steel pipe end is incomplete or uneven, the pressure values detected by the pressure sensors at different positions will be different. Therefore, the readings of multiple pressure sensors can be used to determine whether the bevel surface of the steel pipe end to be tested is flat, which helps to solve the problem that rolling friction between the detection part and the steel pipe to be tested will cause wear of the detection part after long-term use, affecting the accuracy of the detection results. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a side view of the structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the right-side structure of this utility model.
[0018] In the diagram: 1. Mounting base; 2. Controller; 3. Guide rod; 4. Electrically controlled gripper; 5. Slide rod; 6. Fixing plate; 7. Pressure sensor; 8. Electrically controlled cylinder; 9. Fixing block. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] For examples, please refer to Figure 1-3 This utility model provides a technical solution:
[0021] A steel pipe end bevel surface inspection device includes a mounting base 1, a controller 2 mounted on the side wall of the mounting base 1, a guide rod 3 mounted on the base surface of the mounting base 1, an electrically controlled gripper 4 slidably connected to the outer wall of the guide rod 3, and a sliding rod 5 slidably connected to the inner wall of the electrically controlled gripper 4.
[0022] One end of the slide rod 5 is connected to the inner wall of the mounting base 1, and the other end of the slide rod 5 is provided with a fixing plate 6. A pressure sensor 7 is provided on the outer wall of the fixing plate 6. An electric control cylinder 8 is installed directly above the slide rod 5 and on the outer wall of the mounting base 1. A fixing block 9 is installed at one end of the electric control cylinder 8. The fixing block 9 is installed on the outer wall of the electric control gripper 4.
[0023] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The controller 2 is connected to the electrically controlled gripper 4, pressure sensor 7 and electrically controlled cylinder 8 via wires, and the connection method is electrical connection. The controller 2 is located on one side of the guide rod 3. The guide rod 3 is provided in two sets and is located on the inner wall of the mounting base 1. The guide rod 3 is located directly below the slide rod 5. The fixing plate 6 is located in the inner cavity of the electrically controlled gripper 4. The pressure sensor 7 is provided in multiple sets and is located on the outer wall of the fixing plate 6. The pressure sensor 7 has a ring array structure. The electrically controlled cylinder 8 is located directly above the guide rod 3.
[0024] The working process of this utility model is as follows: When the steel pipe end bevel surface detection device designed in this scheme is in operation, the controller 2 is electrically connected to the electrically controlled gripper 4, pressure sensor 7, and electrically controlled cylinder 8 via wires, thereby energizing the device. Simultaneously, a fixed plate 6 is installed at the other end of the slide rod 5, and the pressure sensor 7 is installed on the outer wall of the fixed plate 6. The electrically controlled cylinder 8 is installed directly above the slide rod 5 and on the outer wall of the mounting base 1. A fixing block 9 is installed at one end of the electrically controlled cylinder 8. With the fixing block 9 installed on the outer wall of the electrically controlled gripper 4, the steel pipe end to be detected is pressed against the fixed plate 6. At this time, the steel pipe end and the pressure sensor 7 on the surface of the fixed plate 6 come into contact, causing the pressure sensor 7 to generate pressure. The electrical signal is transmitted to the controller 2 via a wire, which in turn controls the electrically controlled gripper 4 to clamp the steel pipe. Subsequently, the controller 2 controls the electrically controlled cylinder 8 to operate, so that one end of the electrically controlled cylinder 8 applies a pulling force to the electrically controlled gripper 4 through the fixing block 9. This causes the electrically controlled gripper 4 to move the steel pipe to one side, so that the end of the steel pipe applies pressure to multiple pressure sensors 7 simultaneously. When the bevel surface of the steel pipe end is incomplete or uneven, the pressure values detected by the pressure sensors 7 at different positions will be different. Therefore, the readings of multiple pressure sensors 7 can be used to determine whether the bevel surface of the steel pipe end to be tested is flat. This helps to solve the problem that rolling friction between the detection part and the steel pipe to be tested will cause wear of the detection part after long-term use, affecting the accuracy of the detection results.
[0025] 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 detecting a bevel face of a pipe end of a steel pipe, comprising a mounting base (1), characterized in that: The side wall of the mounting base (1) is provided with a controller (2), the base surface of the mounting base (1) is provided with a guide rod (3), the outer wall of the guide rod (3) is slidably connected with an electrically-controlled clamping jaw (4), and the inner wall of the electrically-controlled clamping jaw (4) is slidably connected with a sliding rod (5); One end of the sliding rod (5) is connected to the inner wall of the mounting base (1), the other end of the sliding rod (5) is provided with a fixing disc (6), the outer wall of the fixing disc (6) is provided with a pressure sensor (7), the electrically-controlled cylinder (8) is installed above the sliding rod (5) and on the outer wall of the mounting base (1), one end of the electrically-controlled cylinder (8) is provided with a fixing block (9), and the fixing block (9) is installed on the outer wall of the electrically-controlled clamping jaw (4).
2. The apparatus for inspecting a bevel of a pipe end of a steel pipe according to claim 1, characterized in that: The controller (2) is connected with the electrically-controlled clamping jaw (4), the pressure sensor (7) and the electrically-controlled cylinder (8) through wires in an electrical connection mode.
3. The apparatus for inspecting a bevel of a pipe end of a steel pipe according to claim 1, characterized in that: The controller (2) is located on one side of the guide rod (3), and the guide rod (3) is provided with two groups and located on the inner walls of the mounting base (1).
4. The apparatus for inspecting a bevel of a pipe end of a steel pipe according to claim 1, characterized in that: The guide rod (3) is located below the sliding rod (5), and the fixing disc (6) is located in the inner cavity of the electrically-controlled clamping jaw (4).
5. The apparatus for inspecting a bevel of a pipe end of a steel pipe according to claim 1, characterized in that: The pressure sensor (7) is provided with multiple groups and located on the outer wall of the fixing disc (6).
6. The apparatus for inspecting a bevel of a pipe end of a steel pipe according to claim 1, characterized by: The pressure sensor (7) is of a ring array structure, and the electrically-controlled cylinder (8) is located above the guide rod (3).
Citation Information
Patent Citations
Steel pipe end groove surface detection device
CN220670509U