A large plate weld automatic detection device

Abstract

An automatic inspection device for large plate welds includes a support frame and an inspection unit. The support frame includes multiple pairs of height adjustment plates arranged in an array along its length. A lower tightening hole is formed through the vertical side of a U-shaped groove, and a lower tightening bolt is installed in the lower tightening hole. A horizontal rail is provided between the upper parts of two height adjustment plates at one end of the support frame. Multiple upper tightening holes are formed in an array along the length of the support frame on one side of an L-shaped limiting rail, and upper tightening bolts are installed in the upper tightening holes. The inspection unit is slidably mounted on the upper end of the support frame and includes a pair of base plates. A guide rail is provided at the upper end of the base plates. A lifting mechanism is provided at the sliding end of the guide rail. An X-ray machine is mounted on one lifting mechanism, and a control box and an imaging plate matching the emitting end of the X-ray machine are respectively mounted at both ends of the other lifting mechanism. A gear meshing with a rack and passing through a gear groove is fixed to the outer periphery of the output shaft of the rotating mechanism. This invention has a simple structure, is easy to operate, and saves time and manpower.

Description

Technical Field

[0001] This utility model relates to the field of X-ray flaw detection technology, and in particular to an automatic detection device for weld seams of large plate materials. Background Technology

[0002] Plate welding is ubiquitous in engineering. The quality of the weld directly affects the service life and safety of the workpiece. Therefore, in the welding of some important plates, the weld seams must undergo rigorous testing to ensure they meet design standards before use. X-ray flaw detection is one such method. For small plates with weld seam lengths less than 200mm, X-rays combined with an imaging plate can image the weld seam in one go. The imaging time varies depending on the thickness of the plate, ranging from a few dozen seconds to over a hundred seconds. However, for large plates with weld seam lengths of several meters or even longer, it is necessary to image the weld seam in several or even hundreds of segments. This requires constantly starting and stopping the X-ray machine, which takes much longer, and constantly repositioning the X-ray machine, imaging plate, and the weld seam, consuming a great deal of manpower and time. Utility Model Content

[0003] To address the aforementioned shortcomings, this utility model provides an automatic inspection device for weld seams in large-scale plate materials, which has a simple structure, is easy to operate, and saves time and manpower.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted: An automatic inspection device for weld seams in large plate materials includes: The support frame includes multiple pairs of height adjustment plates arranged in an array along its length. One side of each height adjustment plate is fitted with an L-shaped plate. Each pair of L-shaped plates arranged in pairs along the width of the support frame is provided with a U-shaped groove. A lower tightening hole is opened through one vertical side of the U-shaped groove. A lower tightening bolt is installed in the lower tightening hole. A horizontal bar is provided between the upper parts of the two height adjustment plates at one end of the support frame. A pair of L-shaped limiting bars are provided on one side of the horizontal bar. Multiple upper tightening holes are arranged in an array along the length of the support frame on one side of the L-shaped limiting bar. An upper tightening bolt is installed in the upper tightening hole. The support frame also includes a rack located on one side at its upper end and extending along the length of the support frame. The detection unit is slidably mounted on the upper end of the support frame and includes a pair of base plates. The upper end of the base plates is provided with a guide rail, and the sliding end of the guide rail is provided with a lifting mechanism. One lifting mechanism is provided with an X-ray machine, and the two ends of the other lifting mechanism are respectively provided with a control box and an imaging plate that matches the emitting end of the X-ray machine. The base plates have a gear groove that runs vertically through them. One end of one base plate is fixed with a rotating mechanism, and the outer periphery of its output shaft is fixed with a gear that meshes with a rack and passes through the gear groove. A U-shaped connecting frame is also connected between the lower end faces of the two base plates.

[0005] Furthermore, one side of the L-shaped limit bar extends along the length of the support frame, and one end of the other side is fixed to the side of the height adjustment plate at the other end of the support frame.

[0006] Furthermore, the support frame also includes two support plates and two pairs of C-shaped tubes that extend along the length of the support frame. Each support plate is fixed to the upper end of each height adjustment plate on both sides of the support frame. The C-shaped tubes are open at both ends and on one side. The two C-shaped tubes on the same side of the support frame are open on opposite sides. A protruding rod is also provided between one pair of C-shaped tubes, and a rack is fixed to the upper end of the protruding rod.

[0007] Furthermore, a pair of rotating seats are mounted on the upper part of a base plate, located on both sides above the gear groove. Each base plate is also equipped with two sets of rollers and two sets of track wheels. One set of track wheels is located directly below a set of rollers. One set of rollers under each base plate is located on a support plate, and the other set of rollers is located on a C-shaped tube. The two sets of track wheels are located inside the C-shaped tube. The rotating mechanism is fixed to one end of the base plate equipped with the rotating seats, and the output shaft of the rotating mechanism passes through each rotating seat.

[0008] Furthermore, a pair of L-shaped mounting parts are provided on a lifting mechanism. Several through holes are opened on the vertical part of the two L-shaped mounting parts. Tensioning screws are installed in the through holes. A connecting plate is also provided between the vertical parts of the two L-shaped mounting parts. The imaging plate and the control box are respectively located at both ends of the connecting plate.

[0009] The beneficial effects of this technical solution are as follows: 1. This large-scale automatic plate weld detection device has a simple structure, is easy to operate, and saves time and manpower.

[0010] 2. The structure of the device can be easily expanded to enable automatic detection of welds on larger plates. Attached Figure Description

[0011] Figure 1 An overall perspective view of an embodiment of this application is shown.

[0012] Figure 2 An embodiment of this application is shown. Figure 1 Enlarged view of part A.

[0013] Figure 3 A perspective view of the detection unit according to an embodiment of this application is shown.

[0014] Figure 4 An embodiment of this application is shown. Figure 3 Enlarged view of part B.

[0015] Figure 5 A perspective view of the support frame according to an embodiment of this application is shown.

[0016] Figure 6 An embodiment of this application is shown. Figure 5Enlarged view of part C. Detailed Implementation

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1-6 The large plate weld automatic inspection device shown includes a support frame 1 and an inspection unit 2.

[0019] The support frame 1 includes a base support assembly, which includes multiple pairs of side base rods 111 arranged in an array along the length of the support frame 1. Each pair of side base rods 111 are arranged on both sides along the width of the support frame 1. Connecting rods 11 are provided between some or all of the pairs of side base rods 111. Several vertical support rods 13 are provided at the upper end of each side base rod 111. A side top rod 131 fixed to the upper end of each of the vertical support rods 13 is provided above each side base rod 111. A downwardly extending height adjustment plate 14 is provided at one end of each side top rod 131. An L-shaped plate 15 is fitted on one side of the height adjustment plate 14. Specifically… The height adjustment plate 14 has multiple adjustment holes 141 extending through its side along a vertical direction. The vertical part of the L-shaped plate 15 has a side hole. By screwing the adjustment holes 141 and the side hole, the L-shaped plate 15 is fixed at a specified height on one side of the height adjustment plate 14. Each pair of L-shaped plates 15 arranged in pairs along the width direction of the support frame 1 has a U-shaped groove 16 between them. A lower tightening hole is provided through one vertical side of the U-shaped groove 16. A lower tightening bolt 161 is installed in the lower tightening hole to tighten the plate 3 from the side of the lower part of the plate 3. A height adjustment plate 14 is provided between the upper parts of the two height adjustment plates 14 located at one end of the support frame 1. The horizontal bar 12 has a pair of L-shaped limiting rails 121 on one side. One side of the L-shaped limiting rail 121 extends along the length of the support frame 1, and one end of the other side is fixed to the side of the height adjustment plate 14 at the other end of the support frame 1. Multiple upper tightening holes are arrayed along the length of the support frame 1 on one side of the L-shaped limiting rail 121. Upper tightening bolts 122 are installed in the upper tightening holes for tightening the plate 3 from the side of the middle of the plate 3. The L-shaped limiting rail 121 with upper tightening holes and the U-shaped groove 16 with lower tightening holes are located on the same side. One side of the L-shaped limiting rail 121 without holes is used for receiving... The side of the contact plate 3 and the inner side of the vertical part of the unperforated U-shaped groove 16 are located on the same vertical plane. The support frame 1 also includes two support plates 17 and two pairs of C-shaped tubes 18 that extend along the length of the support frame 1. Each support plate 17 is fixed to the upper end of each height adjustment plate 14 on both sides of the support frame 1. Each C-shaped tube 18 is fixed to the upper end of each side top rod 131 on both sides of the support frame 1. Both ends and one side of the C-shaped tube 18 are open. The two C-shaped tubes 18 located on the same side of the support frame 1 are open on opposite sides. A protruding rod is also provided between one pair of C-shaped tubes 18. A rack 19 extending along the length of the support frame 1 is fixed to the upper end of the protruding rod.

[0020] The detection unit 2 is slidably mounted on the upper end of the support frame 1, including a pair of base plates 21. A guide rail 22 is provided on the upper end of the base plate 21, and a lifting mechanism 23 is provided on the sliding end of the guide rail 22. In this embodiment, the lifting mechanism 23 is a scissor lift platform. One lifting mechanism 23 is equipped with an X-ray machine 26, and the other lifting mechanism 23 is equipped with a pair of L-shaped mounting parts 27. Several through holes are opened on the vertical parts of both L-shaped mounting parts 27, and tensioning screws are installed in the through holes. A connecting plate 271 is also provided between the vertical parts of the two L-shaped mounting parts 27. One end of the connecting plate 271 is equipped with an imaging plate 261 that matches the emitting end of the X-ray machine 26, and the other end is equipped with a control box 28. The control box 28 contains a control module, which includes a circuit board electrically connected to both the X-ray machine 26 and the imaging plate 261, as well as a communication module, enabling remote control via a wireless network. The base plate 21 has... The gear slot runs vertically through the base plate 21. A pair of rotating seats 211 are mounted on the upper end of the base plate 21, located on both sides above the gear slot. Each base plate 21 is also provided with two sets of rollers 212 and two sets of track wheels 213. One set of track wheels 213 is located directly below one set of rollers 212. One set of rollers 212 under each base plate 21 is located on the support plate 17, and the other set of rollers 212 is located on a C-shaped tube 18. The two sets of track wheels 213 are located inside the C-shaped tube 18. One end of the base plate 21 with the rotating seats 211 is also fixed with a rotating mechanism 24 that is electrically connected to the control module. In this embodiment, the rotating mechanism 24 is a stepper motor. The output shaft of the rotating mechanism 24 passes through each rotating seat 211, and a gear 25 that meshes with a rack 19 and passes through the gear slot is fixed on the outer periphery of the output shaft. A U-shaped connecting frame 29 is also connected between the lower end faces of the two base plates 21.

[0021] Work style: The plate 3 is hoisted onto the support frame 1, specifically onto each U-shaped groove 16. The plate 3 is fixed onto the support frame 1 by the lower tightening bolt 161 and the upper tightening bolt 122. Before fixing, the position of the weld 4 can be adjusted by adjusting the fixed height of the U-shaped groove 16. Then, the X-ray machine 26 and the imaging plate 261 are adjusted to the optimal detection position by adjusting each lifting mechanism 23 and the guide rail 22. Finally, the control module of the control box 28 drives the rotating mechanism 24 to move the gear 25 on the rack 19. The detection unit 2 is moved as a whole through the U-shaped connecting frame 29. After reaching the starting position of the weld, the control module starts imaging. After imaging is completed, the detection unit 2 moves a specified distance to continue imaging until the entire weld is inspected. The entire system is remotely controlled by wireless WIFI.

[0022] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. An automatic inspection device for weld seams in large plate materials, characterized in that, include: The support frame (1) includes multiple pairs of height adjustment plates (14) arranged in an array along its length. One side of each height adjustment plate (14) is fitted with an L-shaped plate (15). Each pair of L-shaped plates (15) arranged in pairs along the width direction of the support frame (1) is provided with a U-shaped groove (16). A lower tightening hole is opened through one vertical side of the U-shaped groove (16). A lower tightening bolt (161) is installed in the lower tightening hole. A horizontal bar (12) is provided between the upper parts of the two height adjustment plates (14) at one end of the support frame (1). A pair of L-shaped limit bars (121) are provided on one side of the horizontal bar (12). Multiple upper tightening holes are arranged in an array along the length direction of the support frame (1) on one side of the L-shaped limit bar (121). An upper tightening bolt (122) is installed in the upper tightening hole. The support frame (1) also includes a rack (19) located on one side of its upper end and extending along the length direction of the support frame (1). The detection unit (2) is slidably mounted on the upper end of the support frame (1), including a pair of base plates (21). The upper end of the base plate (21) is provided with a guide rail (22). The sliding end of the guide rail (22) is provided with a lifting mechanism (23). One lifting mechanism (23) is provided with an X-ray machine (26). The other lifting mechanism (23) is provided with a control box (28) and an imaging plate (261) that matches the emitting end of the X-ray machine (26) at both ends. The base plate (21) is provided with a gear groove that runs vertically through it. One end of the base plate (21) is fixed with a rotating mechanism (24). The outer periphery of its output shaft is fixed with a gear (25) that meshes with a rack (19) and passes through the gear groove. A U-shaped connecting frame (29) is also connected between the lower end faces of the two base plates (21).

2. The automatic detection device for large plate welds according to claim 1, characterized in that, One side of the L-shaped limit bar (121) extends along the length of the support frame (1), and one end of the other side is fixed to the side of the height adjustment plate (14) at the other end of the support frame (1).

3. The automatic detection device for large plate welds according to claim 1, characterized in that, The support frame (1) also includes two trays (17) extending along the length of the support frame (1) and two pairs of C-shaped tubes (18). Each tray (17) is fixed to the upper end of each height adjustment plate (14) on both sides of the support frame (1). The C-shaped tubes (18) are open at both ends and on one side. The two C-shaped tubes (18) on the same side of the support frame (1) are open on opposite sides. A protruding rod is provided between one pair of C-shaped tubes (18), and a rack (19) is fixed to the upper end of the protruding rod.

4. The automatic detection device for large plate welds according to claim 3, characterized in that, A pair of rotating seats (211) are mounted on the upper end of a base plate (21), which are located on both sides above the gear groove. Two sets of rollers (212) and two sets of track wheels (213) are also provided below each base plate (21). One set of track wheels (213) is located directly below one set of rollers (212). One set of rollers (212) under each base plate (21) is located on the support plate (17). The other set of rollers (212) is located on a C-shaped tube (18). The two sets of track wheels (213) are located inside the C-shaped tube (18). The rotating mechanism (24) is fixed to one end of the base plate (21) equipped with the rotating seats (211). The output shaft of the rotating mechanism (24) passes through each rotating seat (211).

5. The automatic detection device for large plate welds according to claim 1, characterized in that, A lifting mechanism (23) is provided with a pair of L-shaped mounting parts (27). The vertical parts of the two L-shaped mounting parts (27) are provided with several through holes, and tension screws are installed in the through holes. A connecting plate (271) is also provided between the vertical parts of the two L-shaped mounting parts (27). The imaging plate (261) and the control box (28) are respectively located at both ends of the connecting plate (271).

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