A complex shape metal product nondestructive testing sensor support structure

Abstract

The utility model discloses a complex shape metal product nondestructive testing sensor support structure, and the detection unit and clamping unit are alternately distributed around on the base. The detection unit contains hydraulic telescopic column and embedded sensor body, and the telescopic column is steady through the fixed ring sensor, and it is convenient for adjusting the detection end position; the clamping unit is constituted by vertical rod, threaded rod and arc clamping rod, and the arc clamping rod is connected with the threaded rod through the rotating part, and the angle is locked through the locking pin, and the self -adaptation clamping and multi -angle fixation of complex shape workpiece are realized through the cooperation of elastic clamping end. Through replacing the clamping unit of different specifications, it can be adapted to diversified detection articles; the arc clamping rod drives the workpiece rotation, and further expands the detection angle. The support breaks through the limitation of traditional detection support, realizes the all -round, multi -angle nondestructive testing of complex shape metal product, and the detection coverage significantly improves.

Description

Technical Field

[0001] This utility model provides a sensor support structure, and particularly relates to a sensor support structure for non-destructive testing of complex-shaped metal products. Background Technology

[0002] As a key component of precision testing equipment, non-destructive testing sensor brackets are mainly used to fix and adjust the position of sensors, ensuring effective coupling between them and the metal surface being measured. They are widely used in quality control processes in aerospace, automotive manufacturing, and other fields. Traditional brackets typically employ a single base with a fixed arm structure, achieving limited angle adjustments through preset tracks or joints. Their core function is to provide a stable testing platform and protect the sensor from external interference.

[0003] Existing non-destructive testing (NDT) supports generally include a base, support columns, and sensor mounting bases. Some advanced models are equipped with electrically operated telescopic rods or universal joints to enhance flexibility. However, when dealing with complex curved metal products, this structure reveals significant drawbacks: firstly, the fixed-angle clamping arms are difficult to adapt to irregular shapes, easily leading to blind spots in the inspection; secondly, the rigidly connected sensor mounting bases cannot automatically conform to uneven surfaces, requiring repeated manual calibration; and thirdly, the separate design of the inspection unit and the clamping unit lacks a collaborative mechanism, resulting in low inspection efficiency and a high false positive rate. These shortcomings make existing technologies inadequate for handling complex workpieces such as turbine blades and irregularly shaped castings. Utility Model Content

[0004] To address the aforementioned issues, this application provides a sensor support structure for nondestructive testing of complex-shaped metal products, which solves the problems of incomplete detection coverage and limited angle adjustment of traditional supports, thereby achieving comprehensive, efficient, and accurate detection.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sensor support structure for non-destructive testing of complex-shaped metal products, including a base, on which detection units and clamping units are alternately distributed;

[0006] The detection unit includes a telescopic column fixedly connected to the base, and a sensor body is embedded at the end of the telescopic column away from the base.

[0007] The clamping unit includes a vertical rod fixedly connected to the base and located between the telescopic columns. The vertical rod is provided with a threaded rod that passes through it, and an arc-shaped clamping rod that is movably connected to the threaded rod is provided on the inner side of the vertical rod.

[0008] Preferably, the threaded rod is movably connected to a rotating component at one end near the arc-shaped clamping rod, and the other side of the rotating component is provided with a T-shaped sliding groove.

[0009] Preferably, the curvatures of the sliding groove and the arc-shaped clamping rod correspond, and the two sides of the sliding groove are provided with through rotating parts that abut against the locking pins of the arc-shaped clamping rod.

[0010] Preferably, the arc-shaped clamping rod has an elastic clamping end on the side opposite to the threaded rod. The arc-shaped clamping rod contacts the metal product at any angle and achieves angle locking and clamping of the metal product with the help of the threaded rod.

[0011] Preferably, the telescopic column is a hydraulic telescopic device, and a fixing ring is provided on the end of the telescopic column near the sensor body and sleeved on the outside of the sensor body; the sensor body includes a detection end placed between the fixing ring and the telescopic column, and an external circuit connection line connected to the detection end on a side away from each other.

[0012] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0013] The working principle of this invention is based on a modular collaborative detection mechanism: a closed-loop detection system is formed by clamping units and detection units distributed around the base. When the metal product is placed in the center, the arc-shaped clamping rod moves radially under the drive of the threaded rod. The elastic clamping end first adaptively conforms to the surface of the workpiece, and then the rotating part finely adjusts the angle through the sliding groove and is locked by the locking pin, achieving multi-directional stable clamping. At the same time, the hydraulic telescopic column adjusts its height synchronously, so that the detection end of the sensor body is precisely close to the area to be inspected, and the external circuit connection line transmits data to the analysis system in real time. Each unit is independently controllable but synchronously linked. By adjusting the telescopic amount and clamping force, a dynamic detection coordinate system is constructed, ultimately achieving all-round non-destructive testing of complex curved metal products.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a sensor support structure for non-destructive testing of complex-shaped metal products according to the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the detection unit of a sensor support structure for non-destructive testing of complex-shaped metal products according to this utility model;

[0017] Figure 3 This is a cross-sectional view of the upright portion of a sensor support structure for nondestructive testing of complex-shaped metal products according to this utility model.

[0018] Figure 4This is a three-dimensional schematic diagram of the detection unit of a sensor support structure for non-destructive testing of complex-shaped metal products according to this utility model.

[0019] As shown in the figure:

[0020] 1. Base; 2. Detection unit; 3. Clamping unit;

[0021] 21. Telescopic column; 22. Sensor body; 23. Fixing ring; 24. Detection end; 25. External circuit connection wire;

[0022] 31. Upright pole; 32. Threaded rod; 33. Arc-shaped clamping rod; 34. Rotating component; 35. Sliding groove; 36. Locking pin; 37. Elastic clamping end. Detailed Implementation

[0023] 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.

[0024] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1 and Figure 2 As shown, a sensor support structure for non-destructive testing of complex-shaped metal products is disclosed, with detection units and clamping units alternately distributed around the base. The detection unit includes a telescopic column fixedly connected to the base. One end of the telescopic column, away from the base, is embedded in the sensor body. The telescopic column is a hydraulic telescopic device, and its end near the sensor body has a fixing ring that fits around the sensor body. The sensor body consists of a detection end positioned between the fixing ring and the telescopic column, and external circuit connection lines connected to the detection end on opposite sides. The clamping unit includes a vertical rod fixedly connected to the base and located between the telescopic columns. The vertical rod has a threaded rod that passes through it, and an arc-shaped clamping rod movably connected to the threaded rod is located inside the vertical rod.

[0027] In this embodiment, the detection unit 2 and the clamping unit 3 are arranged in a circumferential array and alternately distributed on the top surface of the base 1. The included angle between adjacent units is equal and the distribution density can be adjusted according to the detection requirements. The telescopic column 21 is fixed to the base 1 by a flange, and its hydraulic chamber is connected to an external pump station to form a closed-loop control system. The sensor body 22 is embedded into the groove at the top of the telescopic column 21 by an interference fit. The fixing ring 23 adopts a split structure and is tightened with bolts to the sensor body 22 to ensure that the detection end 24 is perpendicular to the surface being measured. The uprights 31 of the clamping unit 3 are symmetrically distributed in the middle of adjacent telescopic columns 21. The threaded rod 32 and the threaded hole of the upright 31 form a helical transmission pair. The rotating part 34 is connected to the end of the threaded rod 32 by a thrust bearing. The T-shaped slider of the arc-shaped clamping rod 33 and the sliding groove 35 of the rotating part 34 form a lockable sliding pair. The elastic clamping end 37 adopts a polyurethane elastomer-wrapped metal skeleton structure.

[0028] Furthermore, the base 1 is provided with radially distributed slots 11, and the bottom of the upright 31 is provided with a locking block 38 that matches the slots 11. The slots 11 and the locking block 38 are fixedly connected by bolts 39. By replacing the arc-shaped clamping rods 33 with different curvatures and adjusting their positions on the rotating part 34, different shaped items to be tested can be adapted. A bearing 341 is provided between the rotating part 34 and the threaded rod 32. The rotating part 34 can rotate freely around the axis of the threaded rod 32. When the arc-shaped clamping rod 33 drives the item to be tested to rotate relative to the rotating part 34, the rotation angle can be locked by the locking pin 36 to realize multi-angle detection of the item to be tested relative to the detector body 22.

[0029] By replacing the clamping units with different corresponding distributions, the entire part of the item to be inspected can be inspected; the curved clamping rod drives the rotation of the item to be inspected relative to the rotating component, further adjusting the angle of the item to be inspected relative to the detector body. This achieves inspection without blind spots.

[0030] like Figure 3 and Figure 4 As shown, in the sensor support structure for non-destructive testing of complex-shaped metal products, a rotating component is movably connected to one end of the threaded rod near the arc-shaped clamping rod. A T-shaped sliding groove is provided on the other side of the rotating component, corresponding to the curvature of the arc-shaped clamping rod. Locking pins are provided on both sides of the sliding groove, penetrating the rotating component and abutting against the arc-shaped clamping rod. The side of the arc-shaped clamping rod away from the threaded rod has an elastic clamping end, which can contact the metal product at any angle. The threaded rod helps to lock its angle and clamp the metal product, ensuring the stability of the metal product during testing, and allowing the sensor to flexibly adjust the detection position and angle.

[0031] In this implementation scheme, in practical applications, this device needs to work in conjunction with an external hydraulic control system, a non-destructive testing host, and an industrial control computer: the hydraulic pump station precisely controls the stroke of each telescopic column 21 through a proportional solenoid valve group, and the pressure sensor provides real-time feedback of the system pressure; the non-destructive testing host can be an ultrasonic flaw detector or a radiographic testing instrument, and its signal processing module is matched with the detection end 24 of the sensor body 22; the industrial control computer runs customized detection path planning software, dynamically adjusting the actions of each unit through a PID algorithm. The polyurethane elastomer of the elastic clamping end 37 has a Shore hardness of 60-70A, and an embedded 304 stainless steel skeleton enhances wear resistance; the fixing ring 23 is made of aviation aluminum alloy 7075-T6, which reduces the overall weight while ensuring strength; the sliding groove 35 of the rotating part 34 is plated with hard chrome, with a hardness of HRC60 or higher, ensuring long-term sliding accuracy. In addition, the number of detection units 2 and clamping units 3 can be adjusted according to the complexity of the workpiece. The typical configuration is 4 sets of detection units and 4 sets of clamping units. For special workpieces, it can be expanded to more. Each unit communicates synchronously through the CAN bus to form a complete intelligent non-destructive testing system.

[0032] Specifically, during the actual installation process, the base 1 is first fixed to the anti-vibration foundation with expansion bolts to ensure that the base is stable and does not shake during the testing process. The hydraulic pump station and the telescopic column 21 are connected by a high-pressure oil pipe. The oil pipe uses a quick-connect coupling for easy disassembly and maintenance. After connection, a pressure test is required to ensure that the hydraulic system is leak-free. The external circuit connection line 25 of the sensor body 22 is connected to the non-destructive testing host via an aviation plug. This host can be a conventional eddy current testing host. Before testing, parameters such as the testing frequency and gain need to be set on the industrial control computer. For clamping unit 3, according to the shape of the metal product to be inspected, the matching arc-shaped clamping rod 33 is embedded into the sliding groove 35 of the rotating part 34 through the T-shaped slider, and the locking pin 36 is tightened with an Allen wrench to fix it. Then, the arc-shaped clamping rod 37 is driven to fit the workpiece surface by rotating the threaded rod 32. After clamping is completed, the hydraulic system controlled by the industrial control computer drives the telescopic column 21 to extend, so that the detection end 24 approaches the workpiece at a speed of 0.5mm / s to the preset detection distance. The detection program is started, and the industrial control computer synchronously collects detection data and generates detection images in real time. After the detection is completed, the hydraulic system is reversed to retract the telescopic column, and the threaded rod 32 is released to remove the workpiece.

[0033] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A sensor support structure for non-destructive testing of complex-shaped metal products, comprising a base (1), characterized in that: The base (1) is alternately surrounded by detection units (2) and clamping units (3); The detection unit (2) includes a telescopic column (21) fixedly connected to the base (1), and a sensor body (22) is embedded at the end of the telescopic column (21) away from the base (1). The clamping unit (3) includes a vertical rod (31) fixedly connected to the base (1) and located between the telescopic columns (21). The vertical rod (31) is provided with a threaded rod (32) that passes through it. The inner side of the vertical rod (31) is provided with an arc-shaped clamping rod (33) that is movably connected to the threaded rod (32).

2. The sensor support structure for non-destructive testing of complex-shaped metal products according to claim 1, characterized in that: The threaded rod (32) is movably connected to a rotating component (34) at one end near the arc-shaped clamping rod (33), and a T-shaped sliding groove (35) is provided on the other side of the rotating component (34).

3. The sensor support structure for non-destructive testing of complex-shaped metal products according to claim 2, characterized in that: The curvatures of the sliding groove (35) and the arc-shaped clamping rod (33) correspond, and the sliding groove (35) has locking pins (36) on both sides that pass through the rotating part (34) and abut against the arc-shaped clamping rod (33).

4. The sensor support structure for non-destructive testing of complex-shaped metal products according to claim 1, characterized in that: The arc-shaped clamping rod (33) has an elastic clamping end (37) on the side opposite to the threaded rod (32). The arc-shaped clamping rod (33) contacts the metal product at any angle and achieves angle locking and clamping of the metal product with the help of the threaded rod (32).

5. The sensor support structure for non-destructive testing of complex-shaped metal products according to claim 1, characterized in that: The telescopic column (21) is a hydraulic telescopic device. A fixing ring (23) is provided on one end of the telescopic column (21) near the sensor body (22) and sleeved on the outside of the sensor body (22). The sensor body (22) includes a detection end (24) placed between the fixing ring (23) and the telescopic column (21) and an external circuit connection line (25) connected to the detection end (24) on the side away from each other.

Images