X-ray flaw detection supporting tool for cylindrical welding part

Abstract

The invention discloses a cylindrical welding part X-ray flaw detection supporting tool, which comprises a chassis and a supporting mechanism positioned on the chassis, and is characterized in that the supporting 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 ends of the stand columns, and a connecting rod displacement mechanism matched with the linear guide rail sliding block assembly and the supporting mechanism is arranged and enables the stand columns to move horizontally in the center direction at the same time. 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] The invention relates to an X-ray flaw detection quality control technology, in particular to an X-ray flaw detection supporting tool for cylindrical welding parts. Background Art

[0002] The outer tube of a radiator is typically formed by straight-line welding along the height (length) of the tube. After welding, X-rays are used for flaw detection. For weld inspection of this type of straight-line area, the conventional process involves selecting four points on the tube wall as supports, placing the product naturally on four independent pillars, and inserting a probe through the tube hole to perform weld inspection. When placing the product and pillars, the position of the supporting pillars is often visually inspected, which can lead to them not being at the product's support points. Furthermore, products weighing over 50kg often make it difficult to adjust the pillar position during placement. There are no position limits around the product after placement, so if the probe strikes the inner wall due to an operational error, the product can easily tip over, resulting in product failure or a safety hazard.

[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 comprising a support mechanism with a clamping mechanism fixedly mounted on the inner rear end of the support mechanism and a fixing mechanism slidably connected to the outer surface of the support mechanism. A motor rotates a gear, which in turn rotates a support sleeve on the outer surface of the motor, enabling a probe at the front end of an extension plate to detect the pipe. This device primarily inspects circumferential welds (pipe-to-pipe joints) on the pipe body. The probe moves along the outer surface of the pipe body and cannot inspect welds along the height of the radiator's outer cylinder. Another example is a nondestructive flaw detection device for welded pipe joints disclosed in patent publication number CN111457232A. The device comprises two stop rings and two fixed rings. Each stop ring and fixed ring has a mounting groove at one end. A stop ring is embedded in the stop groove and mounted within the groove. A gear ring is welded to the top of the stop ring within the groove. A gear engages with the top of the gear ring, and a gear groove is defined on one side of the fixed ring corresponding to the gear. A drive motor is movably mounted on one end of the fixed ring, and a drive groove is defined 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, and a flaw detector is movably mounted on the top of the horizontal support platform. This device is also primarily used for flaw detection of circumferential welds on pipes. However, for heavier pipes, adjusting the standard position of the pipe is difficult due to the inconsistency between the two retaining rings (which hold the pipe) on the stop ring during installation, resulting in poor flaw detection accuracy. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and provide a cylindrical welding part X-ray flaw detection support tooling, which has the characteristics of being able to quickly position the test object, meet the requirements of flaw detection of products with different diameters, and prevent products from tipping over.

[0005] The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions: a cylindrical welded part X-ray flaw detection support tooling, including a chassis connected to the flaw detection equipment workbench, and a support mechanism located on the chassis, which is characterized in that the support mechanism is positioned on the chassis through an adjustment mechanism; the support mechanism includes a plurality of concentrically arranged columns, a support plate is provided at the top of the column, an anti-reversal pin is provided on the support plate, and the plane on the support plate is parallel to the bottom surface reference A of the chassis.

[0006] The adjustment mechanism includes a linear guide slider assembly located at the bottom end of the column, and a connecting rod displacement mechanism is provided in conjunction with the linear guide slider assembly and the support mechanism. The connecting rod displacement mechanism enables several supporting columns to perform translational movements along the center direction at the same time.

[0007] In the aforementioned cylindrical welded parts X-ray flaw detection support tooling, preferably, the connecting rod displacement mechanism includes a turntable assembly located at the center of several supporting columns, and the turntable assembly is provided with a dial, which is connected to the support mechanism through a number of arc-shaped connecting rods equal to the number of columns.

[0008] In the aforementioned cylindrical welded parts X-ray flaw detection support fixture, preferably, the turntable assembly is positioned on the chassis via a rotating shaft and bearings.

[0009] In the aforementioned cylindrical welded parts X-ray flaw detection support fixture, preferably, the dial is a cross-shaped rod structure, the center of the cross is the rotation center, and the four ends of the cross are respectively hinged to the arc-shaped connecting rods.

[0010] In the aforementioned cylindrical welded parts X-ray flaw detection support fixture, preferably, the turntable assembly is provided with a rotating handle.

[0011] In the aforementioned cylindrical welded parts X-ray flaw detection support fixture, preferably, the plurality of arc-shaped connecting rods are uniformly arranged in a clockwise or counterclockwise direction.

[0012] In the aforementioned cylindrical welded parts X-ray flaw detection support tooling, preferably, the plurality of supporting columns are evenly arranged on the chassis, and the linear guide rail slider assembly includes a guide rail and a slider, wherein all the guide rails pass through the center of the plurality of concentrically arranged supporting columns.

[0013] In the aforementioned cylindrical welded parts X-ray flaw detection support fixture, preferably, the adjustment mechanism is provided with a stop screw that cooperates with the slider, the guide rail is provided with a scale mark, and the adjustment mechanism is connected to the slider through a pad assembly.

[0014] In the aforementioned cylindrical welded parts X-ray flaw detection support fixture, preferably, a support rubber pad is provided on the support plate.

[0015] In the aforementioned cylindrical welded parts X-ray flaw detection support tooling, preferably, a handle is provided on the edge of the chassis.

[0016] This technical solution is mainly designed to solve the problems to be solved from the following aspects: The first is the chassis connected to the workbench of the flaw detection equipment, which serves as the benchmark of the device and provides an integrated combination of functional parts such as the support mechanism and the adjustment mechanism to ensure the coordination and cooperation of various functional parts and operational safety.

[0017] The second is the coordinated adjustment mechanism of the support mechanism, which consists of a linear guide slider assembly and a connecting rod displacement mechanism. The support mechanism features a support plate parallel to the chassis bottom surface, ensuring the product is positioned stably on the support plate (support pad). The connecting rod displacement mechanism includes a turntable assembly (dial, curved connecting rod, etc.). Supported by the linear guide slider assembly, the support mechanism rotates the turntable assembly by rotating the handle, thereby driving the curved connecting rod. This causes the support mechanism to move inward or outward simultaneously along the linear guide slider assembly. All columns move synchronously, changing the diameter supported by the support plate to accommodate a variety of product specifications. Anti-reversal pins prevent the product from tipping over.

[0018] The third is the detailed design of key components: the turntable assembly is fixed to the chassis through a rotating shaft and bearings, the dial is a cross-hinged arc-shaped connecting rod, and the connecting rod is arranged in a uniform rotation direction to ensure synchronization; the slider is locked by a stop screw, and the guide rail is marked with scales for precise adjustment; human-machine design: a handle is provided on the edge of the chassis, and the handle is used to apply force to carry and clamp the fixture to avoid injury to the operator.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the synchronous diameter change of multiple columns can be achieved by rotating the handle, which is suitable for flaw detection operations of workpieces with different diameters, and the adjustment speed is fast; the guide rail scale cooperates with the stop screw to ensure the accuracy of the support position, and the support plate is parallel to the reference plane A, which ensures the quality of flaw detection imaging and achieves high-precision positioning; the anti-reverse pin and the support rubber pad prevent the workpiece from sliding, and the cross dial structure is evenly stressed to avoid unilateral deviation, with strong stability, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 Figure 1 Top view of .

[0022] Figure 3 yes Figure 2 Schematic diagram of the partial cross-section structure at CC in the middle.

[0023] Figure 4 It is a structural schematic diagram of a linear guide rail slider assembly of the present invention.

[0024] Figure 5 yes Figure 4 Schematic diagram of the BB structure.

[0025] Figure 6 It is a structural schematic diagram of a turntable assembly of the present invention.

[0026] Figure 7 It is a schematic diagram of an arc-shaped connecting rod structure of the present invention.

[0027] Figure 8 It is a schematic diagram of a rotating shaft structure of the present invention.

[0028] Figure 9 It is a structural schematic diagram of a pad assembly of the present invention.

[0029] Figure 10 It is a schematic diagram of the scale adjustment state of the present invention.

[0030] In the figure: 1-anti-reverse pin, 2-support rubber pad, 3-support plate, 4-column, 5-turntable assembly, 501-dial, 6-arc connecting rod, 7-pad assembly, 8-linear guide slider assembly, 801-guide rail, 802-slider, 9-chassis, 10-rotating shaft, 11-bearing, 12-stop screw, 13-handle, 14-handle sleeve pin, 15-rotating handle. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0032] like Figure 1 、 Figure 2 As shown, this embodiment is a cylindrical welding part X-ray inspection support tooling, which is specially used for the X-ray inspection process after welding the radiator outer cylinder, including a chassis 9 connected to the inspection equipment workbench, a support mechanism and an adjustment mechanism located on the chassis 9.

[0033] The support mechanism is positioned on the chassis 9 through an adjustment mechanism. The chassis 9 is a circular disc structure. The support mechanism includes four concentric and evenly arranged columns 4. The top of the columns 4 is provided with a support plate 3. The outer side of the support plate 3 is provided with an anti-reversal pin 1. The surface of the support plate 3 is provided with a support rubber pad 2. The upper surface of the support plate 3 is parallel to the bottom surface reference A of the chassis 9. Note: Figure 1 M is the upper plane of the support plate 3 + support rubber pad 2, which is parallel to the bottom surface reference A of the chassis 9.

[0034] The adjustment mechanism includes a linear guide rail slider assembly 8 located at the bottom end of the column 4, and the linear guide rail slider assembly 8 includes a guide rail 801 and a slider 802. Figure 4 、 Figure 5As shown, the guide rail 801 and the slider 802 are matched through a slide rail component with limited up and down freedom, such as a dovetail groove, wherein all the guide rails 801 pass through the centers of four concentrically arranged columns 4 to form a right cross.

[0035] A connecting rod displacement mechanism is provided in cooperation with the linear guide rail slider assembly 8 and the supporting mechanism. The connecting rod displacement mechanism enables the four columns 4 to perform a translational movement along the center direction on the guide rail 801 at the same time.

[0036] The connecting rod displacement mechanism includes a turntable assembly 5 located at the center of the four supporting columns 4, and the turntable assembly 5 is provided with a dial 501. Figure 6 As shown, the dial 501 is connected to the support structure through four arc-shaped connecting rods 6, which are equal in number to the columns 4. The four arc-shaped connecting rods 6 are uniformly arranged in a clockwise or counterclockwise direction. The dial 501 is a cross-shaped rod structure, with the center of the cross being the center of rotation. The center of the dial 501 of the turntable assembly 5 is positioned at the center of the chassis 9 through the rotating shaft 10 and the bearing 11. The rotating shaft 10 is as shown in FIG. Figure 8 As shown; the four ends of the dial 501 are respectively hinged with the arc-shaped connecting rod 6 through pins, bearings, and the arc-shaped connecting rod 6. Figure 7 , the other end of the arc-shaped connecting rod 6 is connected to the slider 802.

[0037] Furthermore, the adjustment mechanism is connected to the slider 8 via the pad assembly 7. The pad assembly 7 is as shown in FIG. Figure 9 As shown, the other end of the arc-shaped connecting rod 6 is connected to the pad assembly 7.

[0038] The dial 501 of the turntable assembly 5 is also provided with a rotating handle 15. Figure 3 As shown, the rotary handle 15 is vertically positioned on the dial 501 through the handle sleeve pin 14, and the rotary handle 15 can rotate freely with the handle sleeve pin 14 as the axis.

[0039] The adjustment mechanism is also provided with a stop screw 12 that cooperates with the slider 802, and the guide rail 801 is provided with a scale mark, see Figure 10 .

[0040] In addition, a handle 13 is provided on the edge of the chassis 9 for carrying the fixture and clamping the fulcrum.

[0041] When in use, hold the handle 13 and place the device at a suitable position on the workbench of the flaw detection equipment. Then adjust the inner diameter value formed by the four anti-reversal pins 1 according to the diameter value of the cylindrical welded part product (radiator outer cylinder). The specific operation is to use the rotating handle 15 to shake the adjustment mechanism to move the four columns 4 inward or outward along the guide rail 801. When the diameter value of the cylindrical welded part product is reached, tighten the stop screw 12 to vertically adjust the outer cylinder of the radiator of the tested part. Figure 1 The M surface is placed on the inspected part to perform flaw detection.

[0042] The above embodiments are intended to illustrate the present invention, not to limit it. The embodiments described are only a portion of the present invention, not all of the embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

Claims

1. A cylindrical welded part X-ray flaw detection support tool, comprising a chassis (9) connected to a flaw detection equipment workbench, a support mechanism located on the chassis, and characterized by The support mechanism is positioned on the chassis through an adjustment mechanism; the support mechanism comprises a plurality of concentrically arranged columns (4), the top ends of the columns are provided with support plates (3), the support plates are provided with anti-reversal pins (1), and the plane on the support plates is parallel to the bottom surface reference A of the chassis; The adjustment mechanism includes a linear guide rail slider assembly (8) located at the bottom end of the column, and a connecting rod displacement mechanism is provided in conjunction with the linear guide rail slider assembly and the support mechanism. The connecting rod displacement mechanism enables the plurality of supporting columns to perform a translational movement along the center direction at the same time.

2. The X-ray flaw detection support tool for cylindrical welded parts according to claim 1, characterized in that: The connecting rod displacement mechanism comprises a turntable assembly (5) located at the center of a plurality of supporting columns (4), the turntable assembly being provided with a dial (501), and the dial being connected to the supporting mechanism via a plurality of arc-shaped connecting rods (6) having the same number as the columns.

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

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

5. The X-ray flaw detection support tool 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. The X-ray flaw detection support tool for cylindrical welded parts according to claim 2 or 3, characterized in that: The plurality of arc-shaped connecting rods (6) are uniformly arranged in a clockwise or counterclockwise direction.

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

8. The X-ray flaw detection support tool 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), the guide rail (801) is provided with a scale mark, and the adjustment mechanism is connected to the slider via a pad assembly (7).

9. The X-ray flaw detection support tool for cylindrical welded parts according to claim 1, characterized in that: A supporting rubber pad (2) is provided on the supporting plate (3).

10. The X-ray flaw detection support tool for cylindrical welded parts according to claim 1, characterized in that: A handle (13) is provided on the edge of the chassis (9).

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