A flaw detection auxiliary device

Abstract

The utility model provides a kind of flaw detection auxiliary equipment, belong to metal sheet detection technical field.Solve the technical problem that manpower propels flaw detection trolley to carry out metal sheet flaw detection, and easy to occur the technical problem of missed detection phenomenon.Its technical scheme is: a kind of flaw detection auxiliary equipment, including the portal frame for connecting flaw detection trolley, track is arranged below the portal frame, the portal frame is on track and moves along track length direction;Fixed backing pad and head backing pad for positioning plate to be measured are further provided below the portal frame, the fixed backing pad is parallel with track, the head backing pad is vertically arranged with fixed backing pad;Adjusting group is arranged on the beam of the portal frame, and the adjusting group is used to adjust the position of flaw detection trolley on portal frame.The beneficial effects of the utility model are: when metal sheet flaw detection, portal frame drives flaw detection trolley to travel on track, ensure that route is straight line, to avoid missed detection phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet inspection technology, and in particular to a flaw detection auxiliary device. Background Technology

[0002] Metal flaw detection is a non-destructive testing technique that uses devices such as eddy current, magnetism, X-ray, gamma rays or ultrasound to detect surface, internal and surface defects (such as cracks, sand holes, etc.) in metals. It is mainly used for quality inspection of industrial parts.

[0003] When performing flaw detection on metal sheets (such as steel plates), the metal sheet is placed on a workbench, the flaw detection carriage is placed on the metal sheet, and the operator pushes the flaw detection carriage to move back and forth in an S-shape on the metal sheet until the entire surface of the sheet is detected.

[0004] When a flaw detection trolley is manually pushed for inspection, it is difficult to keep the inspection route in a straight line, which can easily lead to missed detections. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary device for flaw detection that avoids missed detections during flaw detection of metal plates.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A flaw detection auxiliary device includes a gantry for connecting a flaw detection carriage. A track is provided below the gantry, and rollers are provided at both ends of the gantry and rest on the track. The gantry can move along the length of the track. A fixing plate and a head plate are also provided below the gantry for positioning the plate to be tested. The fixing plate is parallel to the track, and the head plate is perpendicular to the fixing plate. An adjustment assembly is provided on the crossbeam of the gantry for adjusting the position of the flaw detection carriage on the gantry.

[0008] Furthermore, the adjustment group includes a positioning plate and several positioning holes. The positioning plate is fixedly connected to the flaw detection carriage, and the positioning plate is connected to the positioning holes at different positions to realize the position adjustment of the flaw detection carriage and realize multi-pass detection.

[0009] Furthermore, the positioning holes include several sets of hole positions, each set of hole positions including two connecting holes; the several sets of hole positions are arranged along the length direction of the gantry, and the positions of the two adjacent connecting holes of two adjacent sets of hole positions are staggered, so that the positions of the two adjacent sets of hole positions overlap, and the detection areas of each pass overlap, thereby improving the detection coverage and further reducing the phenomenon of missed detection; the positioning inserts are provided in two, and the two positioning inserts are correspondingly matched with the two connecting holes on one set of hole positions.

[0010] Furthermore, the distance between two adjacent connecting holes accounts for 8%-12% of the distance between two connecting holes in the same group of holes.

[0011] Furthermore, an adjustable pad is provided below the gantry frame. The adjustable pad is arranged parallel to the fixed pad, and the position of the adjustable pad is adjustable. It is used to clamp the material to be tested in the width direction of the material to be tested together with the fixed pad. The adjustable pad is adjusted according to the width of the material to be tested.

[0012] Furthermore, the head pad is located at one end of the fixed pad, and the other end of the fixed pad is provided with a tail pad. The head pad and the tail pad clamp the material to be tested in the length direction of the material to be tested.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When performing flaw detection on metal sheets, place the metal sheet between two tracks, with the adjacent sides of the metal sheet in contact with the fixed pad and the head pad, respectively. Then, connect the flaw detection carriage to the gantry, ensuring that the edge probes of the flaw detection carriage are fully in contact with the fixed pads and the tail probes are in close contact with the head pad. This initiates the first pass of the flaw detection. The position of the flaw detection carriage is then adjusted using the adjustment group for the second pass, and so on, until the entire sheet surface is inspected. The gantry and track setup ensures that the flaw detection carriage's path is straight, and the fixed pads and head pad ensure that the sheet's position is parallel to the tracks. This ensures that the inspection path for each pass is a straight line parallel to the length of the metal sheet, thus avoiding missed inspections.

[0015] 2. The positions of the two adjacent connecting holes of two adjacent hole groups are staggered, so that there is an overlapping part between the two adjacent hole groups, and the detection areas of each pass overlap, thereby improving the detection coverage and further reducing the phenomenon of missed detection. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 This is a structural schematic diagram of a flaw detection auxiliary device according to an embodiment of the present utility model.

[0018] The attached diagram is labeled as follows: 1. Gantry frame; 11. Crossbeam; 2. Track; 3. Fixed pad; 31. Adjustable pad; 4. Head pad; 41. Tail pad; 5. Positioning insert; 6. Positioning hole; 61. Hole position; 611. Connection hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0020] Example 1

[0021] See Figure 1 The present invention provides a flaw detection auxiliary device, comprising a gantry frame 1 and a track 2. The track 2 is configured as two parallel guide rails and is laid on the ground or on a workbench. In this embodiment, the track 2 is laid on the workbench and is rigidly fixed to the workbench by pre-embedded bolts to form a reference track 2 for the longitudinal movement of the gantry frame 1. The gantry frame 1 includes a crossbeam 11 and two baffle columns. The crossbeam 11 is perpendicular to the track 2, and both ends of the crossbeam 11 are respectively connected to the two baffle columns. Rollers are provided at the lower ends of the two baffle columns. The rollers roll on the guide rails to realize the movement of the gantry frame 1 on the track 2.

[0022] A fixed pad 3 is installed under the gantry frame 1. The fixed pad 3 is fixedly connected to the workbench and is set parallel to the track 2. One end of the fixed pad 3 is connected to the head pad 4, and the two are set perpendicularly. An adjustable pad 31 is installed on one side of the fixed pad 3. A screw mechanism is installed on the adjustable pad 31 to realize the movement adjustment of the adjustable pad 31. The other end of the fixed pad 3 is connected to the tail pad 41. A screw mechanism is installed on the tail pad 41 to realize the movement adjustment of the tail pad 41.

[0023] An adjustment group is provided on the crossbeam 11 of the gantry frame 1. The adjustment group includes two positioning plates 5 and several positioning holes 6. The several positioning holes 6 are opened on the upper surface of the crossbeam 11. The several positioning holes 6 include several sets of hole positions 61. In this embodiment, there are six sets of hole positions 61. The six sets of hole positions 61 are arranged along the length of the crossbeam 11. Each set of hole positions 61 includes two connecting holes 611. The two adjacent connecting holes 611 of two adjacent sets of hole positions 61 are staggered, so that there is an overlap between the adjacent sets of hole positions 61. The two positioning plates 5 correspond to and cooperate with the two connecting holes 611 on the set of hole positions 61. The distance between the two adjacent connecting holes 611 accounts for 8%-12% of the distance between the two connecting holes 611 of the same set of hole positions 61. In this embodiment, it is 10%.

[0024] The positioning plate 5 is hollow in the middle, allowing the crossbeam 11 to pass through it. A rod is provided in the hollow part of the positioning plate 5 for insertion into the corresponding positioning hole 6.

[0025] When performing flaw detection on metal sheets, place the sheet to be tested on the workbench, with the two adjacent sides of the sheet in contact with the fixed pad 3 and the head pad 4, respectively. Then, adjust the adjustable pad 31 and the tail pad 41 to clamp the sheet from the other adjacent sides. Then, connect the two positioning plates 5 to the flaw detection carriage, and insert the rods of the two positioning plates 5 into the connecting holes 611 of the first set of holes 61. The edge probes of the flaw detection carriage are completely in contact with the fixed pad 3, and the tail probes are in close contact with the head pad 4, and the detection can be started.

[0026] The flaw detection carriage lowers the probe assembly to form a stable contact with the steel plate surface, performing longitudinal detection from the head to the tail of the plate at a constant rate. After reaching the end, the first detection data is saved. The probe assembly is then raised, and the inserts of the two positioning plates 5 are inserted into the connecting holes 611 of the second set of holes 61. After the flaw detection carriage turns, the probe assembly is adjusted and repositioned. The tail probe makes close contact with the tail pad 41 of the plate to perform reverse detection and complete data storage. The above operation is repeated to complete the detection of 3-6 sets of holes 61, thus completing the flaw detection of the metal plate.

[0027] Example 2

[0028] The difference from Embodiment 1 is that the adjustment group is a sprocket and chain structure. The chain is connected to the crossbeam 11, and the sprocket is set on the flaw detection carriage. The sprocket rolls on the chain to adjust the position of the flaw detection carriage on the crossbeam 11. Compared with the fixed coverage of Embodiment 1, the adjustment of the carriage position under the sprocket and chain structure is not limited by the hole position, and the number of inspection passes can be increased or decreased, thereby realizing the adjustment of multiple inspection coverage.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flaw detection auxiliary device, characterized in that, The system includes a gantry (1) for connecting a flaw detection trolley, a track (2) below the gantry (1), the gantry (1) resting on the track (2) and moving along the length of the track (2); a fixing pad (3) and a head pad (4) for positioning the plate to be tested are also provided below the gantry (1), the fixing pad (3) being parallel to the track (2), and the head pad (4) being perpendicular to the fixing pad (3); an adjustment group is provided on the crossbeam (11) of the gantry (1), the adjustment group being used to adjust the position of the flaw detection trolley on the gantry (1).

2. The flaw detection auxiliary equipment according to claim 1, characterized in that, The adjustment group includes a positioning plate (5) and several positioning holes (6). The positioning plate (5) is fixedly connected to the flaw detection carriage. The positioning plate (5) is connected to the positioning holes (6) at different positions to realize the position adjustment of the flaw detection carriage.

3. The flaw detection auxiliary equipment according to claim 2, characterized in that, The positioning holes (6) include several sets of hole positions (61), each set of hole positions (61) includes two connecting holes (611); the several sets of hole positions (61) are arranged along the length direction of the gantry frame (1), and the positions of the two adjacent connecting holes (611) of two adjacent sets of hole positions (61) are staggered, so that there is an overlapping part between the two adjacent sets of hole positions (61); The positioning insert (5) is configured as two, and the two positioning inserts (5) are correspondingly matched with two connecting holes (611) on a set of holes (61).

4. The flaw detection auxiliary equipment according to claim 2, characterized in that, The distance between two adjacent connecting holes (611) accounts for 8%-12% of the distance between two connecting holes (611) in the same group of holes (61).

5. The flaw detection auxiliary equipment according to claim 1, characterized in that, An adjustable pad (31) is also provided below the gantry frame (1). The adjustable pad (31) is arranged parallel to the fixed pad (3). The position of the adjustable pad (31) is adjustable and is used to clamp the plate to be tested with the fixed pad (3) in the width direction of the plate to be tested.

6. The flaw detection auxiliary equipment according to claim 1, characterized in that, The head pad (4) is located at one end of the fixed pad (3), and the other end of the fixed pad (3) is provided with a tail pad (41). The head pad (4) and the tail pad (41) clamp the material to be tested in the length direction of the material to be tested.

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