Multi-angle automatic detection device for surface roughness of tubular part

Abstract

The invention provides a multi-angle automatic detection device for the surface roughness of a tubular part, and belongs to the field of automatic detection equipment. The roughness detector is driven by the pneumatic propulsion cylinder to be in contact with the surface of the pipe fitting, the servo motor is meshed with the radial rotation main gear through the pinion set, rotation of the large gear around the center supporting wheel is achieved, and it is ensured that the large gear can still complete whole-circle rotation when an opening exists through the small limiting wheel. In the detection process, the roughness detector measures the radial surface of the pipe fitting along with rotation of the large gear, when the servo motor is fixed, the linear sliding module drives the detector to move in the axial direction of the pipe fitting, and roughness detection of the axial surface is completed. The device has a real-time online detection function, can improve the production efficiency and ensure the product quality, and is suitable for multi-angle and automatic measurement of the surface roughness of tubular parts.

Description

Technical Field

[0001] The present invention relates to the field of automated testing equipment, and in particular to a multi-angle automated testing device for the surface roughness of tubular parts. Background Art

[0002] In the production and processing of tubular components, surface roughness is a key quality indicator. Traditional surface roughness testing technologies primarily include manual offline testing and simple automated online testing. Both methods have limitations in practical application and fail to meet the demands of modern manufacturing for high-efficiency, high-precision, and fully automated production. Manual offline testing requires removing the workpiece from the production line and returning it to the line after measurement. This not only increases process complexity but also causes downtime in the production process, severely impacting productivity. Because the testing process relies on the operator's skill level and experience, test results are susceptible to human factors, resulting in inconsistent and unreliable test data. Manual testing cannot meet the demands of large-scale production, especially when comprehensive inspection of every product is required. Manual testing is inefficient and leads to lengthy inspection cycles. Testing is typically limited to a specific area of the pipe, failing to quickly and accurately inspect the entire surface (especially radial and axial directions), making it easy to miss potential quality issues. Simple automated online testing techniques often only measure the axial surface of the pipe, while radial surface inspection requires separate equipment, increasing complexity and cost.

[0003] In response to the deficiencies of the above-mentioned prior art, the present invention provides a fully automated surface roughness detection device for pipe fittings, which can realize multi-dimensional and multi-angle detection of the radial and axial surfaces of pipe fittings. The roughness detector is driven by a pneumatic propulsion cylinder to contact the surface of the pipe fitting, and the servo drive motor cooperates with the small gear set and the radial rotating main gear to ensure that the large gear can rotate around the central spur gear to complete high-precision detection of the radial surface of the pipe fitting. At the same time, the linear sliding module drives the detector to move axially to complete the detection of the axial surface of the pipe fitting. The device has the advantages of high precision, strong flexibility, high degree of automation, and wide adaptability. It overcomes many deficiencies in the prior art and can better meet the high requirements for surface roughness in modern manufacturing. Summary of the Invention

[0004] This invention discloses an automated, multi-angle surface roughness inspection device for tubular components. This device aims to address existing issues such as low detection efficiency, limited detection range, and insufficient automation. It is particularly suitable for real-time, online inspection on production lines. By combining precision mechanical transmission, automated control, and high-precision sensor technology, the device can perform multi-angle inspection of the radial and axial surface roughness of tubular components without human intervention, significantly improving detection efficiency and measurement accuracy.

[0005] A multi-angle automated detection device for the surface roughness of a tubular component, comprising a cylinder connector, a large gear, a pneumatic propulsion cylinder, a detector mounting member, a transmission gear, a mounting plate, a pinion, a limiting small wheel, a pinion rotating shaft, a transmission gear shaft, a roughness detector, a servo motor, a coupling, a workbench, a motor connecting plate, a motor support, a linear sliding module, a module connecting plate, and a module mounting frame; A module mounting frame is horizontally arranged on the workbench through bolts, a linear sliding module is arranged on the module mounting frame through bolts, a motor support is connected to a module connecting plate slidingly connected to the linear sliding module through bolts, and a servo motor is arranged on the motor support through a motor connecting plate and fixed with bolts; The mounting plate is convex, and the bottom of the mounting plate is vertically fixed on the module connecting plate. A circular notch is provided on the upper part of the mounting plate, and a rectangular notch is provided on the top of the mounting plate and is connected to the circular notch. A circular notch is provided in the center of the large gear, and a notch is provided on the edge of the large gear and is connected to the circular notch in the center of the gear. The large gear and the circular notch of the mounting plate are fixed by a supporting wheel, and a limited small wheel is provided on the inner side of the circular notch of the mounting plate. Two transmission gears are symmetrically provided at the lower part of the mounting plate and the transmission gear is meshed with the large gear. A small gear is meshed between the two transmission gears, and the small gear rotating shaft of the small gear passes through the mounting plate and is connected to the servo motor through a coupling; the transmission gear shaft of the transmission gear passes through the mounting plate for rotational connection; The lower part of the circular notch on the large gear is connected to one side of the pneumatic propulsion cylinder through a cylinder connector. The other side of the pneumatic propulsion rod is connected to a detector mounting part. A roughness detector is installed inside the detector mounting part.

[0006] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. The multi-angle automatic detection device also includes a mounting box and a link plate. The lower part of the circular notch on the large gear is connected to the mounting box through the link plate. The mounting box is connected to one side of the pneumatic propulsion cylinder through a cylinder connector.

[0007] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. A circular notch with a diameter of 100 mm is provided on the mounting plate, and a rectangular notch with a side length of 50 mm is provided on the top of the mounting plate and is connected to the central circular notch of the mounting plate.

[0008] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. The center of the large gear is provided with a circular notch with a diameter of 110 mm, and the edge of the large gear is provided with a 50° rectangular notch connected to the circular notch in the center of the gear.

[0009] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. The center distance between two transmission gears is 126 mm, and the center distance between the large gear and the small gear is 228 mm.

[0010] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. The multi-angle automatic detection device also includes a PLC control module, the output end of the PLC control module is connected to the input end of a servo motor, a linear sliding module, a pneumatic push cylinder and a roughness detector.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses an automated, multi-angle surface roughness testing device for tubular components. This device can be used for real-time, online testing of the outer surface of tubular components during industrial manufacturing. It is suitable for a variety of industries, including but not limited to machining, automotive manufacturing, aerospace, pipeline manufacturing, and metal processing, ensuring that component surface quality meets requirements and enhancing overall product reliability and safety. Through automated, online testing, the present invention significantly improves inspection efficiency during pipe production and is particularly suitable for production scenarios requiring surface quality control for large batches of pipes. This device significantly improves inspection efficiency and enables real-time monitoring and adjustment of product quality. The device utilizes a high-precision roughness tester, combined with a precise air pressure control system and mechanical transmission structure, ensuring high-precision and stable roughness measurement. The device can inspect pipe surfaces from multiple angles and dimensions, ensuring consistent inspection across the entire surface, avoiding the inspection errors associated with traditional techniques due to manual labor or equipment limitations. The device is suitable for a variety of pipe manufacturing scenarios. Whether measuring small or large diameter pipes, the device can accurately inspect the surface of pipes of varying diameters by adjusting the gear transmission and cylinder to move the tester closer or further away. The pneumatic propulsion cylinder design allows the device to flexibly adapt to pipes of varying materials and surface conditions, demonstrating exceptional adaptability. The detector automatically measures the surface roughness of each pipe, significantly reducing the need for manual intervention and providing effective technical support for fully automated production. The device is suitable not only for inspecting standard circular pipes, but also for inspecting the surfaces of non-standard pipes. The linkage between the linear slide module and the pneumatic propulsion system, combined with the specialized design of rotary detection, ensures continuous, seamless inspection of pipe surfaces of various shapes, eliminating blind spots. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a multi-angle automatic detection device for the surface roughness of tubular parts according to the present invention; Figure 2 This is a front view of a multi-angle automatic detection device for the surface roughness of tubular parts according to the present invention; Figure 3 This is a side view of a multi-angle automatic detection device for the surface roughness of tubular parts according to the present invention; Figure 4 This is a schematic structural diagram of the inner wheel side of a multi-angle automated detection device for the surface roughness of tubular parts according to the present invention; Figure 5 This is a structural schematic diagram of a mounting plate used in a multi-angle automated detection device for the surface roughness of tubular parts according to the present invention; Figure 6 This is a schematic structural diagram of a large gear in a multi-angle automated detection device for the surface roughness of tubular parts according to the present invention; The accompanying drawings in the figures are: 1 is the mounting box; 2 is the link plate; 3 is the cylinder connector; 4 is the large gear; 5 is the pneumatic propulsion cylinder; 6 is the detector mounting part; 7 is the transmission gear; 8 is the mounting plate; 9 is the pinion; 10 is the limiting wheel; 11 is the pinion rotating shaft; 12 is the transmission gear shaft; 13 is the roughness detector; 14 is the servo motor; 15 is the coupling; 16 is the workbench; 17 is the motor connecting plate; 18 is the motor support; 19 is the linear sliding module; 20 is the module connecting plate; 21 is the module mounting frame; 23 is the support wheel. DETAILED DESCRIPTION

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] Example 1 like Figure 1-6 As shown, a multi-angle automated detection device for the surface roughness of tubular parts includes a cylinder connector, a large gear, a pneumatic propulsion cylinder, a detector mounting member, a transmission gear, a mounting plate, a pinion, a limiting small wheel, a pinion rotating shaft, a transmission gear shaft, a roughness detector, a servo motor, a coupling, a workbench, a motor connecting plate, a motor support, a linear sliding module, a module connecting plate, and a module mounting frame; A module mounting frame is horizontally arranged on the workbench through bolts, a linear sliding module is arranged on the module mounting frame through bolts, a motor support is connected to a module connecting plate slidingly connected to the linear sliding module through bolts, and a servo motor is arranged on the motor support through a motor connecting plate and fixed with bolts; The mounting plate is convex, and the bottom of the mounting plate is vertically fixed on the module connecting plate. A circular notch is provided on the upper part of the mounting plate, and a rectangular notch is provided on the top of the mounting plate and is connected to the circular notch. A circular notch is provided in the center of the large gear, and a notch is provided on the edge of the large gear and is connected to the circular notch in the center of the gear. The large gear and the circular notch of the mounting plate are fixed by a supporting wheel, and a limited small wheel is provided on the inner side of the circular notch of the mounting plate. Two transmission gears are symmetrically provided at the lower part of the mounting plate and the transmission gear is meshed with the large gear. A small gear is meshed between the two transmission gears, and the small gear rotating shaft of the small gear passes through the mounting plate and is connected to the servo motor through a coupling; the transmission gear shaft of the transmission gear passes through the mounting plate for rotational connection; The lower part of the circular notch on the large gear is connected to one side of the pneumatic propulsion cylinder through a cylinder connector. The other side of the pneumatic propulsion rod is connected to a detector mounting part. A roughness detector is installed inside the detector mounting part.

[0015] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. The multi-angle automatic detection device also includes a mounting box and a link plate. The lower part of the circular notch on the large gear is connected to the mounting box through the link plate. The mounting box is connected to one side of the pneumatic propulsion cylinder through a cylinder connector.

[0016] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. A circular notch with a diameter of 100 mm is provided on the mounting plate, and a rectangular notch with a side length of 50 mm is provided on the top of the mounting plate and is connected to the central circular notch of the mounting plate.

[0017] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. The center of the large gear is provided with a circular notch with a diameter of 110 mm, and the edge of the large gear is provided with a 50° rectangular notch connected to the circular notch in the center of the gear.

[0018] The present invention provides a multi-angle automatic detection device for the surface roughness of tubular parts. The center distance between two transmission gears is 126 mm, and the center distance between the large gear and the small gear is 228 mm.

[0019] The present invention provides a multi-angle automated surface roughness testing device for tubular components. The device further includes a PLC control module, the output of which is connected to a servo motor, a linear slide module, a pneumatic cylinder, and the input of a roughness tester. The input of the PLC control module is manually input into the PLC control module based on measured or known data.

[0020] Example 2 like Figure 1-6 As shown, a method for using a multi-angle automatic detection device for the surface roughness of tubular parts, the specific steps are: Step 1: Place the pipe to be tested through the rectangular notch of the mounting plate and the large gear to the position of the circular notch; Step 2: The PLC control module controls the servo motor to drive the large gear to rotate. The servo motor stops when the pipe to be tested rotates to the position to be tested. Step 3: The PLC control module controls the air pressure cylinder to push the roughness tester close to the surface of the pipe to perform roughness testing. After the roughness tester finishes testing, the air pressure cylinder retracts to complete the radial surface testing. Step 4: The PLC control module controls the linear sliding module to move along the axial direction of the pipe to be inspected, reaches any axial position within the inspection range, and repeats step 3 to complete the radial surface inspection.

[0021] Example 3 like Figure 1-6 As shown, a multi-angle automatic detection device for the surface roughness of tubular parts solves the core idea of the background technology problem: Existing technologies, whether manual offline testing or simple online testing equipment, suffer from limited detection range, low efficiency, and low precision. Especially for tubular components, comprehensive surface roughness testing requires examining both radial and axial surfaces. Conventional technologies often only allow for single-dimensional testing, making it difficult to ensure comprehensive quality control. This invention innovatively incorporates a pneumatic propulsion system, a rotary gear transmission structure, and automated control technology to create a device capable of real-time surface roughness testing on tubular components within a production line.

[0022] Radial surface inspection: This device uses a servo motor-driven double pinion gear set to mesh with a radially rotating main gear. The pinion gear set's motion drives the main gear equipped with the roughness tester to rotate. The servo motor stops when the roughness tester reaches the pipe's inspection position. After measurement or manually inputting known data into the PLC, the PLC program controls the servo motor to move the tester to the monitoring position. A pneumatic cylinder pushes the roughness tester perpendicular to the pipe, placing it close to the pipe surface for roughness inspection. After the roughness tester completes the inspection, the pneumatic cylinder retracts, completing the inspection at any position on the pipe's circumference. The large gear is designed with a 50° opening. The dual pinion gear set at the bottom allows the large gear to smoothly cross the opening during rotation, ensuring that the tester can complete inspection at any position on the pipe's circumference. This structure overcomes the limitations of traditional devices, which can only inspect at a single position or in a linear direction, and enables inspection at any position on the pipe's circumference.

[0023] Axial surface inspection: After radial inspection is completed, the device also integrates an axial sliding module. After completing the roughness test at a certain position on the pipe, the axial sliding module can drive the roughness detector to move axially along the pipe to any axial position within the inspection range. At this time, the main gear equipped with the roughness detector rotates according to the radial position of the pipe to be inspected. After reaching the specified radial position, the air pressure pushes the cylinder to move, bringing the roughness detector close to the pipe surface for inspection. After the inspection is completed, the air pressure pushes the cylinder to retract, completing the inspection of any radial position of the pipe. This combined axial and radial inspection solution not only improves the comprehensiveness of the inspection, but also ensures that every surface can be accurately inspected.

[0024] Multi-dimensional and multi-angle measurement: Through the linkage of the rotating gear and the linear sliding module, the device can flexibly adjust the detection angle and path of the detector. The 50° opening of the large gear makes this device suitable for surface roughness detection of various special-shaped pipe fittings, ensuring that surface roughness information can be obtained from multiple angles, solving the detection blind spot problem caused by inflexible equipment design in the existing technology.

[0025] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-angle automatic detection device for the surface roughness of tubular parts, characterized by: The multi-angle automatic detection device comprises a cylinder connecting member (3), a large gear (4), a pneumatic propulsion cylinder (5), a detector mounting member (6), a transmission gear (7), a mounting plate (8), a small gear (9), a limiting small wheel (10), a small gear rotating shaft (11), a transmission gear shaft (12), a roughness detector (13), a servo motor (14), a coupling (15), a workbench (16), a motor connecting plate (17), a motor support (18), a linear sliding module (19), a module connecting plate (20) and a module mounting frame (21). A module mounting frame (21) is horizontally provided on the workbench (16) by bolts, a linear sliding module (19) is provided on the module mounting frame (21) by bolts, a module connecting plate (20) slidably connected to the linear sliding module (19) is connected to a motor support (18) by bolts, and a servo motor (14) is provided on the motor support (18) by a motor connecting plate (17) and fixed with bolts; The mounting plate (8) is convex, and the bottom of the mounting plate (8) is vertically fixed on the module connecting plate (20). A circular notch is provided on the upper part of the mounting plate (8), and a rectangular notch is provided on the top of the mounting plate (8) and is connected to the circular notch. A circular notch is provided at the center of the large gear (4), and a notch is provided on the edge of the large gear (4) and is connected to the circular notch in the center of the gear. The large gear (4) and the circular notch of the mounting plate (8) are fixed by a supporting wheel (23). A limited small wheel (10) is provided on the inner side of the circular notch on the mounting plate (8). Two transmission gears (7) are symmetrically provided at the lower part of the mounting plate (8) and the transmission gear (7) is meshed with the large gear (4). A small gear (9) is meshed between the two transmission gears (7). The small gear rotation shaft (11) of the small gear (9) passes through the mounting plate (8) and is connected to the servo motor (14) through the coupling (15); the transmission gear shaft (12) of the transmission gear (7) passes through the mounting plate (8) and is rotatably connected; The lower part of the circular notch on the large gear (4) is connected to one side of the pneumatic propulsion cylinder (5) through the cylinder connector (3), and the other side of the pneumatic propulsion rod (5) is connected to the detector mounting part (6), and the roughness detector (13) is installed inside the detector mounting part (6).

2. The multi-angle automatic detection device for the surface roughness of tubular parts according to claim 1 is characterized in that: The multi-angle automatic detection device further comprises a mounting box (1) and a link plate (2). The lower portion of the circular notch on the large gear (4) is connected to the mounting box (1) via the link plate (2). The mounting box (1) is connected to one side of the pneumatic propulsion cylinder (5) via a cylinder connector (3).

3. The multi-angle automatic detection device for the surface roughness of tubular parts according to claim 1 is characterized in that: The mounting plate (8) is provided with a circular notch with a diameter of 100 mm, and the top of the mounting plate (8) is provided with a rectangular notch with a side length of 50 mm and connected to the central circular notch of the mounting plate (8).

4. The multi-angle automatic detection device for the surface roughness of tubular parts according to claim 1 is characterized in that: The center of the large gear (4) is provided with a circular notch with a diameter of 110 mm, and the edge of the large gear (4) is provided with a 50° rectangular notch connected to the circular notch in the center of the gear.

5. The multi-angle automatic detection device for the surface roughness of tubular parts according to claim 1 is characterized in that: The center distance between the two transmission gears (7) is 126 mm, and the center distance between the large gear (4) and the small gear (9) is 228 mm.

6. The multi-angle automatic detection device for the surface roughness of tubular parts according to claim 1 is characterized in that: The multi-angle automatic detection device further comprises a PLC control module, the output end of the PLC control module being connected to the input end of the servo motor (14), the linear sliding module (19), the pneumatic push cylinder (5) and the roughness detector.

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