Supporting device for flaw detection of cylindrical welding part

Abstract

The utility model discloses a support device for flaw detection of a cylindrical welding part, which comprises a chassis and a support mechanism positioned on the chassis, and is characterized in that the support mechanism is positioned on the chassis through an adjusting mechanism; the supporting mechanism comprises a plurality of concentrically-arranged stand columns, a supporting plate is arranged at the top ends of the stand columns and provided with anti-falling bolts, and the upper plane of the supporting plate is parallel to the base plate bottom face datum A. The adjusting mechanism comprises a linear guide rail sliding block assembly located at the bottom end of the stand column, and a connecting rod displacement mechanism matched with the linear guide rail sliding block assembly and the supporting mechanism. The device is suitable for flaw detection of workpieces with different diameters; supporting position accuracy and high-precision positioning are ensured, and flaw detection imaging quality is guaranteed; and single-side offset is avoided, stability is high, and safety and reliability are achieved.

Description

Technical Field

[0001] This utility model relates to flaw detection quality control technology, and in particular to a flaw detection support device for cylindrical welded parts. Background Technology

[0002] The outer cylinder of a radiator is typically formed by straight welding along its height (length). After welding, X-ray inspection is performed. For this type of straight weld inspection, the conventional process involves selecting four points on the cylinder wall as supports and placing the product naturally on four independent pillars. The probe is inserted through a hole in the cylinder to inspect the weld. However, the positions of the supporting pillars are often determined visually, which may result in them not being at the product's support points. Furthermore, since the product often weighs over 50kg, adjusting the pillar positions is inconvenient. After placement, there are no restraints around the product; if an operator makes a mistake and the probe hits the inner wall of the product, it can easily cause the product to tip over, leading to product failure or safety hazards.

[0003] Publicly available technologies also offer various designs for flaw detection of welded pipes. For example, patent publication number CN112881445B describes a welded pipe flaw detection clamping device, including a support mechanism. A clamping mechanism is fixedly installed at the inner rear end of the support mechanism, and a fixing mechanism is slidably connected to the outer surface of the support mechanism. A motor drives a gear to rotate, which in turn rotates the support sleeve on the outer surface of the motor, allowing the probe at the front end of the extension plate to detect the pipe. This device primarily detects flaws at the circumferential welds (pipe-to-pipe butt joints) of the pipe body. The probe moves along the outer surface of the pipe body, but it cannot detect welds along the height of the radiator outer cylinder. For example, patent publication number CN111457232A discloses a non-destructive testing device for welded pipe joints, which includes two limiting rings and two fixing rings. Each limiting ring and fixing ring has an installation groove at one end. A limiting groove is formed at the bottom of the installation groove on one of the limiting rings and fixing rings. A limiting ring is embedded inside the limiting groove. A gear ring is welded to the top of the limiting ring inside the installation groove. A gear meshes with one side of the top of the gear ring. A gear groove is formed on one side of the fixing ring corresponding to the gear. A drive motor is movably mounted on one end of the fixing ring. A drive groove is formed on one end of the gear corresponding to the output shaft of the drive motor. A horizontal support platform is mounted on one end of the gear ring via a rotating shaft. A flaw detector is movably mounted on the top of the horizontal support platform. This device is also mainly used for flaw detection of circumferential welds on pipe bodies. However, for heavier pipe bodies, the two retaining rings (pipe clamps) on the limiting rings cannot be synchronized during pipe installation, making it very difficult to adjust the standard position of the pipe body, resulting in poor flaw detection accuracy. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a cylindrical welded parts flaw detection support device, which has the characteristics of being able to quickly position the test object, meet the flaw detection requirements of products with different diameters, and prevent the product from tipping over.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a cylindrical welded part flaw detection support device, including a chassis connected to the flaw detection equipment workbench, and a support mechanism located on the chassis, characterized in that the support mechanism is positioned on the chassis by an adjustment mechanism; the support mechanism includes several concentrically arranged columns, a support plate is provided at the top of the columns, an anti-tipping pin is provided on the support plate, and the upper surface of the support plate is parallel to the reference A of the bottom surface of the chassis; the adjustment mechanism includes a linear guide rail slider assembly located at the bottom end of the columns, and a connecting rod displacement mechanism is provided in cooperation with the linear guide rail slider assembly and the support mechanism.

[0006] In the aforementioned cylindrical welded part flaw detection support device, preferably, the linkage displacement mechanism includes a turntable assembly located at the center of several columns. The turntable assembly is equipped with a dial, which is connected to the support mechanism through several arc-shaped connecting rods of equal number to the columns.

[0007] In the aforementioned cylindrical welded part flaw detection support device, preferably, the turntable assembly is positioned on the chassis via a rotating shaft and bearings.

[0008] In the aforementioned cylindrical welded part flaw detection support device, preferably, the dial is a cross-shaped rod structure, with the center of the cross as the rotation center, and the four ends of the cross are respectively hinged to the arc-shaped connecting rod.

[0009] In the aforementioned cylindrical welded part flaw detection support device, preferably, the turntable assembly is provided with a rotating handle.

[0010] In the aforementioned cylindrical welded part flaw detection support device, preferably, the plurality of arc-shaped connecting rods are arranged in a clockwise or counterclockwise manner.

[0011] In the aforementioned cylindrical welded part flaw detection support device, preferably, the plurality of columns are evenly arranged on the chassis, and the linear guide rail slider assembly includes guide rails and sliders, wherein all guide rails pass through the center of the plurality of concentrically arranged columns.

[0012] In the aforementioned cylindrical welded part flaw detection support device, preferably, the adjustment mechanism is provided with a stop screw that cooperates with the slider, the guide rail is provided with scale markings, and the adjustment mechanism is connected to the slider through a pad assembly.

[0013] In the aforementioned cylindrical welded part flaw detection support device, preferably, the support plate is provided with a support pad.

[0014] This technical solution addresses the problem from the following aspects:

[0015] First, the chassis connected to the flaw detection equipment's workbench serves as the reference for this device and provides an integrated combination of functional components such as support mechanisms and adjustment mechanisms to ensure the coordinated operation of each functional component and operational safety.

[0016] Secondly, there is a support mechanism and adjustment mechanism, which consists of a linear guide slider assembly and a linkage displacement mechanism. The support mechanism has a support plate parallel to the bottom surface of the chassis, ensuring that the product can be placed stably on the support plate (support pad). The linkage displacement mechanism includes a turntable assembly (dial, arc-shaped connecting rod, etc.). With the support of the linear guide slider assembly, the support mechanism moves by rotating the handle to rotate the turntable assembly, thereby driving the arc-shaped connecting rod to move. This causes the support mechanism to move inward or outward along the linear guide slider assembly simultaneously. All columns move synchronously, changing the diameter supported by the support plate to accommodate various product specifications. Anti-tipping pins prevent the product from tipping over.

[0017] Thirdly, the detailed design of key components: the turntable assembly is fixed to the chassis by a rotating shaft and bearings, the dial is a cross-shaped hinged arc-shaped connecting rod, and the connecting rods are arranged in a uniform direction of rotation to ensure synchronization; the slider is locked by a stop screw, and the guide rail has scale markings for easy and precise adjustment; ergonomic design: a handle is provided on the side of the chassis, and the handle is used to apply force for clamping and loading, avoiding injury to the operator.

[0018] Compared with the prior art, the beneficial effects of this utility model are: multi-column synchronous diameter change can be achieved by rotating the handle, adapting to flaw detection operations of workpieces with different diameters, and the adjustment speed is fast; the guide rail scale and the stop screw cooperate to ensure the accuracy of the support position, the support plate is parallel to the reference plane A, ensuring the quality of flaw detection imaging and achieving high-precision positioning; the anti-tipping pin and the support rubber pad prevent the workpiece from sliding, the cross dial structure has uniform force distribution, avoids unilateral deviation, has strong stability, and is safe and reliable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 yes Figure 1 Top view.

[0021] Figure 3 yes Figure 2 A schematic diagram of a partial cross-sectional view at the CC section.

[0022] Figure 4 This is a schematic diagram of a linear guide slider assembly according to this utility model.

[0023] Figure 5 yes Figure 4 A schematic diagram of the BB-oriented structure.

[0024] Figure 6This is a schematic diagram of a turntable assembly structure according to the present invention.

[0025] Figure 7 This is a schematic diagram of an arc-shaped connecting rod structure according to the present invention.

[0026] Figure 8 This is a schematic diagram of a rotating shaft structure according to the present invention.

[0027] Figure 9 This is a schematic diagram of a pad assembly structure according to the present invention.

[0028] Figure 10 This is a schematic diagram of the adjustable scale state of this utility model.

[0029] In the diagram: 1-Anti-tipping pin, 2-Supporting pad, 3-Supporting plate, 4-Column, 5-Turntable assembly, 501-Dial, 6-Arc-shaped connecting rod, 7-Plate assembly, 8-Linear guide rail slider assembly, 801-Guide rail, 802-Slider, 9-Chassis, 10-Shaft, 11-Bearing, 12-Stop screw, 13-Handle, 14-Handle sleeve pin, 15-Rotating handle. Detailed Implementation

[0030] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0031] like Figure 1 , Figure 2 As shown in the figure, this embodiment provides a cylindrical welded part flaw detection support device, which is specifically used for X-ray flaw detection positioning and clamping after the outer cylinder of a radiator is welded. It includes a chassis 9 connected to the flaw detection equipment workbench, a support mechanism located on the chassis 9, and an adjustment mechanism.

[0032] The support mechanism is positioned on the chassis 9 via an adjustment mechanism. The chassis 9 has a disc structure. The support mechanism includes four concentric and evenly arranged columns 4. Each column 4 has a support plate 3 at its top. Anti-tipping pins 1 are located on the outer side of the support plate 3, and support pads 2 are provided on the surface of the support plate 3. The upper plane of the support plate 3 is parallel to the bottom reference A of the chassis 9. Note: Figure 1 M in the figure represents the upper plane of the support plate 3 + support pad 2, which is parallel to the reference A on the bottom surface of the chassis 9.

[0033] The adjustment mechanism includes a linear guide rail slider assembly 8 located at the bottom end of the column 4. The linear guide rail slider assembly 8 includes a guide rail 801 and a slider 802, such as... Figure 4 , Figure 5 As shown, the guide rail 801 and the slider 802 are connected by a slide rail assembly such as a dovetail groove that restricts the vertical freedom. All the guide rails 801 pass through the center of the four concentrically arranged columns 4 to form a right cross.

[0034] A linkage displacement mechanism is provided in conjunction with the linear guide slider assembly 8 and the support mechanism. The linkage displacement mechanism enables the four columns 4 to simultaneously perform translational movements along the central direction on the guide rail 801.

[0035] The linkage displacement mechanism includes a turntable assembly 5 located at the center of the four columns 4. The turntable assembly 5 is equipped with a dial 501, such as... Figure 6 As shown, the dial 501 is connected to the support mechanism via four arc-shaped connecting rods 6, which are equal in number to the column 4. The four arc-shaped connecting rods 6 are arranged either clockwise or counterclockwise. The dial 501 has a cross-shaped rod structure, with the center of the cross serving as the rotation center. The center of the dial 501 in the turntable assembly 5 is positioned at the center of the chassis 9 via a rotating shaft 10 and a bearing 11. The rotating shaft 10 is as follows... Figure 8 As shown; the four ends of the dial 501 are hinged to the arc-shaped connecting rod 6 via pins, bearings, and other means. See [link to arc-shaped connecting rod 6 structure]. Figure 7 The other end of the arc-shaped connecting rod 6 is connected to the slider 802.

[0036] Furthermore, the adjustment mechanism is connected to the slider 8 via the pad assembly 7, as shown in the image. Figure 9 As shown, the other end of the arc-shaped connecting rod 6 is connected to the pad assembly 7.

[0037] The dial 501 of the turntable assembly 5 is also equipped with a rotating handle 15, such as Figure 3 As shown, the rotary handle 15 is vertically positioned on the dial 501 by the handle sleeve pin 14, and the rotary handle 15 can rotate freely about the handle sleeve pin 14.

[0038] The adjusting mechanism is also equipped with a stop screw 12 that mates with the slider 802, and the guide rail 801 is equipped with scale markings, see [reference]. Figure 10 .

[0039] In addition, the chassis 9 is equipped with a handle 13 on the side for handling and clamping.

[0040] When using the device, hold handle 13 and place it in a suitable position on the flaw detection equipment workbench. Then, adjust the inner diameter formed by the four anti-tipping pins 1 according to the diameter of the cylindrical welded part (radiator outer cylinder). Specifically, use the rotating handle 15 to shake the adjustment mechanism, causing the four columns 4 to move inward or outward along the guide rail 801. When the required diameter of the cylindrical welded part is reached, tighten the stop screw 12 to ensure the outer cylinder of the radiator under test is vertical. Figure 1 By placing it on the M-side, flaw detection can be performed on the part being inspected.

[0041] The above embodiments are illustrative of the present invention and not intended to limit the present invention. The described embodiments are merely some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

Claims

1. A flaw detection support device for cylindrical welded parts, comprising a chassis (9) connected to the workbench of a flaw detection equipment, and a support mechanism located on the chassis, characterized in that: The support mechanism is positioned on the chassis by an adjustment mechanism; the support mechanism includes several concentrically arranged columns (4), the top of the columns is provided with a support plate (3), the support plate is provided with an anti-tipping pin (1), and the upper surface of the support plate is parallel to the bottom surface reference A of the chassis; the adjustment mechanism includes a linear guide slider assembly (8) located at the bottom of the column, and a connecting rod displacement mechanism is provided in cooperation with the linear guide slider assembly and the support mechanism.

2. The flaw detection support device for cylindrical welded parts according to claim 1, characterized in that, The linkage displacement mechanism includes a turntable assembly (5) located at the center of several columns (4). The turntable assembly is equipped with a dial (501), which is connected to the support mechanism through several arc-shaped connecting rods (6) of equal number to the columns.

3. The flaw detection support device for cylindrical welded parts according to claim 2, characterized in that, The turntable assembly (5) is positioned on the chassis (9) via a rotating shaft (10) and a bearing (11).

4. A flaw detection support device for cylindrical welded parts according to claim 2 or 3, characterized in that, The dial (501) is a cross-shaped rod structure, with the center of the cross being the rotation center, and the four ends of the cross being hinged to the arc-shaped connecting rod (6).

5. A flaw detection support device for cylindrical welded parts according to claim 2 or 3, characterized in that, The turntable assembly (5) is provided with a rotating handle (15).

6. A flaw detection support device for cylindrical welded parts according to claim 2 or 3, characterized in that, The aforementioned arc-shaped connecting rods (6) are arranged in a clockwise or counterclockwise direction.

7. A flaw detection support device for cylindrical welded parts according to claim 1, 2, or 3, characterized in that, The plurality of columns (4) are evenly arranged on the chassis (9), and the linear guide rail slider assembly (8) includes a guide rail (801) and a slider (802), wherein all the guide rails pass through the center of the plurality of concentrically arranged columns.

8. The flaw detection support device for cylindrical welded parts according to claim 7, characterized in that, The adjustment mechanism is provided with a stop screw (12) that cooperates with the slider (802), and the guide rail (801) is provided with scale markings. The adjustment mechanism is connected to the slider through the pad assembly (7).

9. The flaw detection support device for cylindrical welded parts according to claim 1, characterized in that, The support plate (3) is provided with a support pad (2).

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